* [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type
@ 2024-10-29 20:58 Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 01/15] ui & main loop: Redesign of system-specific main thread event handling Phil Dennis-Jordan
` (14 more replies)
0 siblings, 15 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv
This patch set introduces a new ARM and macOS HVF specific machine type
called "vmapple", as well as a family of display devices based on the
ParavirtualizedGraphics.framework in macOS. One of the display adapter
variants, apple-gfx-mmio, is required for the new machine type, while
apple-gfx-pci can be used to enable 3D graphics acceleration with x86-64
macOS guest OSes.
Previous versions of this patch set were submitted semi-separately:
the original vmapple patch set by Alexander Graf included a monolithic
implementation of apple-gfx-mmio. I subsequently reviewed and reworked
the latter to support the PCI variant of the device as well and submitted
the result in isolation. As requested in subsequent review, I have now
recombined this with the original vmapple patch set, which I have updated
and improved in a few ways as well.
The vmapple machine type approximates the configuration in macOS's own
Virtualization.framework when running arm64 macOS guests. In addition to
generic components such as a GICv3 and an XHCI USB controller, it
includes nonstandard extensions to the virtio block device, a special
"hardware" aes engine, a configuration device, a pvpanic variant, a
"backdoor" interface, and of course the apple-gfx paravirtualised display
adapter.
There are currently a few limitations to this which aren't intrinsic,
just imperfect emulation of the VZF, but it's good enough to be just
about usable for some purposes:
* macOS 12 guests only. Versions 13+ currently fail during early boot.
* macOS 11+ arm64 hosts only, with hvf accel. (Perhaps some differences
between Apple M series CPUs and TCG's aarch64 implementation? macOS
hosts only because ParavirtualizedGraphics.framework is a black box
implementing most of the logic behind the apple-gfx device.)
* PCI devices use legacy IRQs, not MSI/MSI-X. As far as I can tell,
we'd need to include the GICv3 ITS, but it's unclear to me what
exactly needs wiring up.
* Due to lack of MSI(-X), event delivery from USB devices to the guest
macOS isn't working correctly. My current conclusion is that the
OS's XHCI driver simply was never designed to work with legacy IRQs.
The upshot is that keyboard and mouse/tablet input is very laggy.
The solution would be to implement MSI(-X) support or figure out how
to make hcd-xhci-sysbus work with the macOS guest, if at all possible.
(EHCI and UHCI/OHCI controllers are not an option as the VMAPPLE
guest kernel does not include drivers for these.)
* The guest OS must first be provisioned using Virtualization.framework;
the disk images can subsequently be used in Qemu. (See docs.)
The apple-gfx device can be used independently from the vmapple machine
type, at least in the PCI variant. It mainly targets x86-64 macOS guests
from version 11 on, but also includes a UEFI bootrom for basic
framebuffer mode. macOS 11 is also required on the host side, as well
as a GPU that supports the Metal API. On the guest side, this provides
3D acceleration/GPGPU support with a baseline Metal feature set,
irrespective of the host GPU's feature set. A few limitations in the
current integration:
* Although it works fine with TCG, it does not work correctly
cross-architecture: x86-64 guests on arm64 hosts appear to make
some boot progress, but rendering is corrupted. I suspect
incompatible texture memory layouts; I have no idea if this is
fixable.
* ParavirtualizedGraphics.framework and the guest driver support
multi-headed configurations. The current Qemu integration always
connects precisely 1 display.
* State serialisation and deserialisation is currently not
implemented, though supported in principle by the framework.
Both apple-gfx variants thus set up a migration blocker.
* Rendering efficiency could be better. The GPU-rendered guest
framebuffer is copied to system memory and uses Qemu's usual
CPU-based drawing. For maximum efficiency, the Metal texture
containing the guest framebuffer could be drawn directly to
a Metal view in the host window, staying on the GPU. (Similar
to the OpenGL/virgl render path on other platforms.)
My part of this work has been sponsored by Sauce Labs Inc.
---
v2 -> v3:
* Merged the apple-gfx and vmapple patchsets.
* Squashed a bunch of later apple-gfx patches into the main one.
(dGPU support, queried MMIO area size, host GPU picking logic.)
* Rebased on latest upstream, fixing any breakages due to internal
Qemu API changes.
* apple-gfx: Switched to re-entrant MMIO. This is supported by the
underlying framework and simplifies the MMIO forwarding code which
was previously different on x86-64 vs aarch64.
* vmapple: Fixes for minor bugs and comments from the last round of
review.
* vmapple aes, conf, apple-gfx: Switched reset methods to implement
the ResettableClass base's interface.
* vmapple: switched from virtio-hid to an XHCI USB controller and
USB mouse and tablet devices. macOS does not provide drivers for
virtio HID devices, at least not in version 12's vmapple kernel.
So input now sort of works (interrupt issues) rather than not
at all. Use network-based remote access to the guest OS as a
work-around.
v3 -> v4:
* Complete rework of the mechanism for handling runloop/libdispatch
events on the main thread. PV graphics now work with the SDL UI.
* Renamed 'apple-gfx-vmapple' device to 'apple-gfx-mmio'
* hw/display/apple-gfx: threading model overhaul to be more consistent,
safer, and more QEMU-idiomatic.
* display-modes property on the apple-gfx devices now uses the
native array property mechanism and works on both device variants.
* hw/vmapple/aes: Improvements to logging and error handling.
* hw/vmapple/cfg: Bug fixes around device property default values.
* hw/vmapple/{aes,cfg,virtio-blk/vmapple}: Most header code moved into
.c files, only a single vmapple.h now contains the #defines for the
vmapple machine model-specific device type names.
* hw/block/virtio-blk: New patch for replacing virtio_blk_free_request
with g_free. (Optional)
* Various smaller changes following comments in v3 code review in
apple-gfx, aes, cfg, bdif, virtio-blk-vmapple, and the vmapple
machine type itself. See patch-specific v4 change notes for details.
v4 -> v5:
* Simplified the main thread runloop mechanism. Back to setting
qemu_main directly, but narrowing the scope of what it needs to do,
and it can now be NULL. (Meaning run the QEMU main event loop on
the main thread as is traditional.)
* hw/display/apple-gfx: Further improvements to the BH based job code bridging
the libdispatch & QEMU thread synchronisation impedance mismatch.
* hw/display/apple-gfx: Thread safety and object lifetime improvements.
* hw/display/apple-gfx-*: Better buffer and error handling in display mode
property setters and getters.
* hw/vmapple/aes: More consistent and safer logging/tracing
* hw/vmapple/cfg: Better error reporting on overlong property strings.
* hw/vmapple/virtio-blk: Fixed theoretically-unaligned write to config buffer.
* vmapple machine type: Moved ecam region into machine state, improved device
property setting error handling, improved ECID/UUID extraction script and
docs.
* Various smaller fixes in apple-gfx/-mmio, apple-gfx-pci, vmapple/aes,
vmapple/cfg, vmapple/virtio-blk, and vmapple machine type.
* Added SPDX license identifiers where they were missing.
Alexander Graf (9):
hw: Add vmapple subdir
hw/misc/pvpanic: Add MMIO interface
hvf: arm: Ignore writes to CNTP_CTL_EL0
gpex: Allow more than 4 legacy IRQs
hw/vmapple/aes: Introduce aes engine
hw/vmapple/bdif: Introduce vmapple backdoor interface
hw/vmapple/cfg: Introduce vmapple cfg region
hw/vmapple/virtio-blk: Add support for apple virtio-blk
hw/vmapple/vmapple: Add vmapple machine type
Phil Dennis-Jordan (6):
ui & main loop: Redesign of system-specific main thread event handling
hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework
support
hw/display/apple-gfx: Adds PCI implementation
hw/display/apple-gfx: Adds configurable mode list
MAINTAINERS: Add myself as maintainer for apple-gfx, reviewer for HVF
hw/block/virtio-blk: Replaces request free function with g_free
MAINTAINERS | 15 +
contrib/vmapple/uuid.sh | 9 +
docs/system/arm/vmapple.rst | 60 +++
docs/system/target-arm.rst | 1 +
hw/Kconfig | 1 +
hw/arm/sbsa-ref.c | 2 +-
hw/arm/virt.c | 2 +-
hw/block/virtio-blk.c | 58 ++-
hw/display/Kconfig | 13 +
hw/display/apple-gfx-mmio.m | 395 +++++++++++++++
hw/display/apple-gfx-pci.m | 156 ++++++
hw/display/apple-gfx.h | 91 ++++
hw/display/apple-gfx.m | 870 +++++++++++++++++++++++++++++++++
hw/display/meson.build | 5 +
hw/display/trace-events | 30 ++
hw/i386/microvm.c | 2 +-
hw/loongarch/virt.c | 2 +-
hw/meson.build | 1 +
hw/mips/loongson3_virt.c | 2 +-
hw/misc/Kconfig | 4 +
hw/misc/meson.build | 1 +
hw/misc/pvpanic-mmio.c | 61 +++
hw/openrisc/virt.c | 12 +-
hw/pci-host/gpex.c | 43 +-
hw/riscv/virt.c | 12 +-
hw/vmapple/Kconfig | 32 ++
hw/vmapple/aes.c | 578 ++++++++++++++++++++++
hw/vmapple/bdif.c | 261 ++++++++++
hw/vmapple/cfg.c | 203 ++++++++
hw/vmapple/meson.build | 5 +
hw/vmapple/trace-events | 21 +
hw/vmapple/trace.h | 1 +
hw/vmapple/virtio-blk.c | 226 +++++++++
hw/vmapple/vmapple.c | 659 +++++++++++++++++++++++++
hw/xtensa/virt.c | 2 +-
include/hw/misc/pvpanic.h | 1 +
include/hw/pci-host/gpex.h | 7 +-
include/hw/pci/pci_ids.h | 1 +
include/hw/virtio/virtio-blk.h | 11 +-
include/hw/vmapple/vmapple.h | 25 +
include/qemu-main.h | 3 +-
include/qemu/cutils.h | 15 +
include/qemu/typedefs.h | 1 +
meson.build | 5 +
system/main.c | 56 ++-
target/arm/hvf/hvf.c | 9 +
ui/cocoa.m | 58 +--
ui/sdl2.c | 4 +
util/hexdump.c | 18 +
49 files changed, 3942 insertions(+), 108 deletions(-)
create mode 100755 contrib/vmapple/uuid.sh
create mode 100644 docs/system/arm/vmapple.rst
create mode 100644 hw/display/apple-gfx-mmio.m
create mode 100644 hw/display/apple-gfx-pci.m
create mode 100644 hw/display/apple-gfx.h
create mode 100644 hw/display/apple-gfx.m
create mode 100644 hw/misc/pvpanic-mmio.c
create mode 100644 hw/vmapple/Kconfig
create mode 100644 hw/vmapple/aes.c
create mode 100644 hw/vmapple/bdif.c
create mode 100644 hw/vmapple/cfg.c
create mode 100644 hw/vmapple/meson.build
create mode 100644 hw/vmapple/trace-events
create mode 100644 hw/vmapple/trace.h
create mode 100644 hw/vmapple/virtio-blk.c
create mode 100644 hw/vmapple/vmapple.c
create mode 100644 include/hw/vmapple/vmapple.h
--
2.39.3 (Apple Git-145)
^ permalink raw reply [flat|nested] 20+ messages in thread
* [PATCH v5 01/15] ui & main loop: Redesign of system-specific main thread event handling
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-31 7:52 ` Akihiko Odaki
2024-10-29 20:58 ` [PATCH v5 02/15] hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support Phil Dennis-Jordan
` (13 subsequent siblings)
14 siblings, 1 reply; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv
macOS's Cocoa event handling must be done on the initial (main) thread
of the process. Furthermore, if library or application code uses
libdispatch, the main dispatch queue must be handling events on the main
thread as well.
So far, this has affected Qemu in both the Cocoa and SDL UIs, although
in different ways: the Cocoa UI replaces the default qemu_main function
with one that spins Qemu's internal main event loop off onto a
background thread. SDL (which uses Cocoa internally) on the other hand
uses a polling approach within Qemu's main event loop. Events are
polled during the SDL UI's dpy_refresh callback, which happens to run
on the main thread by default.
As UIs are mutually exclusive, this works OK as long as nothing else
needs platform-native event handling. In the next patch, a new device is
introduced based on the ParavirtualizedGraphics.framework in macOS.
This uses libdispatch internally, and only works when events are being
handled on the main runloop. With the current system, it works when
using either the Cocoa or the SDL UI. However, it does not when running
headless. Moreover, any attempt to install a similar scheme to the
Cocoa UI's main thread replacement fails when combined with the SDL
UI.
This change tidies up main thread management to be more flexible.
* The qemu_main global function pointer is a custom function for the
main thread, and it may now be NULL. When it is, the main thread
runs the main Qemu loop. This represents the traditional setup.
* When non-null, spawning the main Qemu event loop on a separate
thread is now done centrally rather than inside the Cocoa UI code.
* For most platforms, qemu_main is indeed NULL by default, but on
Darwin, it defaults to a function that runs the CFRunLoop.
* The Cocoa UI sets qemu_main to a function which runs the
NSApplication event handling runloop, as is usual for a Cocoa app.
* The SDL UI overrides the qemu_main function to NULL, thus
specifying that Qemu's main loop must run on the main
thread.
* For other UIs, or in the absence of UIs, the platform's default
behaviour is followed.
This means that on macOS, the platform's runloop events are always
handled, regardless of chosen UI. The new PV graphics device will
thus work in all configurations. There is no functional change on other
operating systems.
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---
v5:
* Simplified the way of setting/clearing the main loop by going back
to setting qemu_main directly, but narrowing the scope of what it
needs to do, and it can now be NULL.
include/qemu-main.h | 3 +--
include/qemu/typedefs.h | 1 +
system/main.c | 56 +++++++++++++++++++++++++++++++++++----
ui/cocoa.m | 58 +++++++++++------------------------------
ui/sdl2.c | 4 +++
5 files changed, 72 insertions(+), 50 deletions(-)
diff --git a/include/qemu-main.h b/include/qemu-main.h
index 940960a7dbc..4bd0d667edc 100644
--- a/include/qemu-main.h
+++ b/include/qemu-main.h
@@ -5,7 +5,6 @@
#ifndef QEMU_MAIN_H
#define QEMU_MAIN_H
-int qemu_default_main(void);
-extern int (*qemu_main)(void);
+extern qemu_main_fn qemu_main;
#endif /* QEMU_MAIN_H */
diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
index 3d84efcac47..b02cfe1f328 100644
--- a/include/qemu/typedefs.h
+++ b/include/qemu/typedefs.h
@@ -131,5 +131,6 @@ typedef struct IRQState *qemu_irq;
* Function types
*/
typedef void (*qemu_irq_handler)(void *opaque, int n, int level);
+typedef int (*qemu_main_fn)(void);
#endif /* QEMU_TYPEDEFS_H */
diff --git a/system/main.c b/system/main.c
index 9b91d21ea8c..8c90b8d2ddf 100644
--- a/system/main.c
+++ b/system/main.c
@@ -24,13 +24,14 @@
#include "qemu/osdep.h"
#include "qemu-main.h"
+#include "qemu/main-loop.h"
#include "sysemu/sysemu.h"
-#ifdef CONFIG_SDL
-#include <SDL.h>
+#ifdef CONFIG_DARWIN
+#include <CoreFoundation/CoreFoundation.h>
#endif
-int qemu_default_main(void)
+static int qemu_default_main(void)
{
int status;
@@ -40,10 +41,55 @@ int qemu_default_main(void)
return status;
}
-int (*qemu_main)(void) = qemu_default_main;
+/*
+ * Various macOS system libraries, including the Cocoa UI and anything using
+ * libdispatch, such as ParavirtualizedGraphics.framework, requires that the
+ * main runloop, on the main (initial) thread be running or at least regularly
+ * polled for events. A special mode is therefore supported, where the QEMU
+ * main loop runs on a separate thread and the main thread handles the
+ * CF/Cocoa runloop.
+ */
+
+static void *call_qemu_default_main(void *opaque)
+{
+ int status;
+
+ bql_lock();
+ status = qemu_default_main();
+ bql_unlock();
+
+ exit(status);
+}
+
+static void qemu_run_default_main_on_new_thread(void)
+{
+ QemuThread thread;
+
+ qemu_thread_create(&thread, "qemu_main", call_qemu_default_main,
+ NULL, QEMU_THREAD_DETACHED);
+}
+
+
+#ifdef CONFIG_DARWIN
+static int os_darwin_cfrunloop_main(void)
+{
+ CFRunLoopRun();
+ abort();
+}
+
+qemu_main_fn qemu_main = os_darwin_cfrunloop_main;
+#else
+qemu_main_fn qemu_main;
+#endif
int main(int argc, char **argv)
{
qemu_init(argc, argv);
- return qemu_main();
+ if (qemu_main) {
+ qemu_run_default_main_on_new_thread();
+ bql_unlock();
+ return qemu_main();
+ } else {
+ qemu_default_main();
+ }
}
diff --git a/ui/cocoa.m b/ui/cocoa.m
index 4c2dd335323..a1474d473a6 100644
--- a/ui/cocoa.m
+++ b/ui/cocoa.m
@@ -73,6 +73,8 @@
int height;
} QEMUScreen;
+@class QemuCocoaPasteboardTypeOwner;
+
static void cocoa_update(DisplayChangeListener *dcl,
int x, int y, int w, int h);
@@ -107,6 +109,7 @@ static void cocoa_switch(DisplayChangeListener *dcl,
static NSInteger cbchangecount = -1;
static QemuClipboardInfo *cbinfo;
static QemuEvent cbevent;
+static QemuCocoaPasteboardTypeOwner *cbowner;
// Utility functions to run specified code block with the BQL held
typedef void (^CodeBlock)(void);
@@ -1321,8 +1324,10 @@ - (void) dealloc
{
COCOA_DEBUG("QemuCocoaAppController: dealloc\n");
- if (cocoaView)
- [cocoaView release];
+ [cocoaView release];
+ [cbowner release];
+ cbowner = nil;
+
[super dealloc];
}
@@ -1938,8 +1943,6 @@ - (void)pasteboard:(NSPasteboard *)sender provideDataForType:(NSPasteboardType)t
@end
-static QemuCocoaPasteboardTypeOwner *cbowner;
-
static void cocoa_clipboard_notify(Notifier *notifier, void *data);
static void cocoa_clipboard_request(QemuClipboardInfo *info,
QemuClipboardType type);
@@ -2002,43 +2005,8 @@ static void cocoa_clipboard_request(QemuClipboardInfo *info,
}
}
-/*
- * The startup process for the OSX/Cocoa UI is complicated, because
- * OSX insists that the UI runs on the initial main thread, and so we
- * need to start a second thread which runs the qemu_default_main():
- * in main():
- * in cocoa_display_init():
- * assign cocoa_main to qemu_main
- * create application, menus, etc
- * in cocoa_main():
- * create qemu-main thread
- * enter OSX run loop
- */
-
-static void *call_qemu_main(void *opaque)
-{
- int status;
-
- COCOA_DEBUG("Second thread: calling qemu_default_main()\n");
- bql_lock();
- status = qemu_default_main();
- bql_unlock();
- COCOA_DEBUG("Second thread: qemu_default_main() returned, exiting\n");
- [cbowner release];
- exit(status);
-}
-
static int cocoa_main(void)
{
- QemuThread thread;
-
- COCOA_DEBUG("Entered %s()\n", __func__);
-
- bql_unlock();
- qemu_thread_create(&thread, "qemu_main", call_qemu_main,
- NULL, QEMU_THREAD_DETACHED);
-
- // Start the main event loop
COCOA_DEBUG("Main thread: entering OSX run loop\n");
[NSApp run];
COCOA_DEBUG("Main thread: left OSX run loop, which should never happen\n");
@@ -2120,8 +2088,6 @@ static void cocoa_display_init(DisplayState *ds, DisplayOptions *opts)
COCOA_DEBUG("qemu_cocoa: cocoa_display_init\n");
- qemu_main = cocoa_main;
-
// Pull this console process up to being a fully-fledged graphical
// app with a menubar and Dock icon
ProcessSerialNumber psn = { 0, kCurrentProcess };
@@ -2185,11 +2151,17 @@ static void cocoa_display_init(DisplayState *ds, DisplayOptions *opts)
qemu_clipboard_peer_register(&cbpeer);
[pool release];
+
+ /*
+ * The Cocoa UI will run the NSApplication runloop on the main thread
+ * rather than the default Core Foundation one.
+ */
+ qemu_main = cocoa_main;
}
static QemuDisplay qemu_display_cocoa = {
- .type = DISPLAY_TYPE_COCOA,
- .init = cocoa_display_init,
+ .type = DISPLAY_TYPE_COCOA,
+ .init = cocoa_display_init,
};
static void register_cocoa(void)
diff --git a/ui/sdl2.c b/ui/sdl2.c
index bd4f5a9da14..44ab2762262 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -34,6 +34,7 @@
#include "sysemu/sysemu.h"
#include "ui/win32-kbd-hook.h"
#include "qemu/log.h"
+#include "qemu-main.h"
static int sdl2_num_outputs;
static struct sdl2_console *sdl2_console;
@@ -965,6 +966,9 @@ static void sdl2_display_init(DisplayState *ds, DisplayOptions *o)
}
atexit(sdl_cleanup);
+
+ /* SDL's event polling (in dpy_refresh) must happen on the main thread. */
+ qemu_main = NULL;
}
static QemuDisplay qemu_display_sdl2 = {
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 02/15] hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 01/15] ui & main loop: Redesign of system-specific main thread event handling Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-31 9:32 ` Akihiko Odaki
2024-10-29 20:58 ` [PATCH v5 03/15] hw/display/apple-gfx: Adds PCI implementation Phil Dennis-Jordan
` (12 subsequent siblings)
14 siblings, 1 reply; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv,
Alexander Graf
MacOS provides a framework (library) that allows any vmm to implement a
paravirtualized 3d graphics passthrough to the host metal stack called
ParavirtualizedGraphics.Framework (PVG). The library abstracts away
almost every aspect of the paravirtualized device model and only provides
and receives callbacks on MMIO access as well as to share memory address
space between the VM and PVG.
This patch implements a QEMU device that drives PVG for the VMApple
variant of it.
Signed-off-by: Alexander Graf <graf@amazon.com>
Co-authored-by: Alexander Graf <graf@amazon.com>
Subsequent changes:
* Cherry-pick/rebase conflict fixes, API use updates.
* Moved from hw/vmapple/ (useful outside that machine type)
* Overhaul of threading model, many thread safety improvements.
* Asynchronous rendering.
* Memory and object lifetime fixes.
* Refactoring to split generic and (vmapple) MMIO variant specific
code.
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---
v2:
* Cherry-pick/rebase conflict fixes
* BQL function renaming
* Moved from hw/vmapple/ (useful outside that machine type)
* Code review comments: Switched to DEFINE_TYPES macro & little endian
MMIO.
* Removed some dead/superfluous code
* Mad set_mode thread & memory safe
* Added migration blocker due to lack of (de-)serialisation.
* Fixes to ObjC refcounting and autorelease pool usage.
* Fixed ObjC new/init misuse
* Switched to ObjC category extension for private property.
* Simplified task memory mapping and made it thread safe.
* Refactoring to split generic and vmapple MMIO variant specific
code.
* Switched to asynchronous MMIO writes on x86-64
* Rendering and graphics update are now done asynchronously
* Fixed cursor handling
* Coding convention fixes
* Removed software cursor compositing
v3:
* Rebased on latest upstream, fixed breakages including switching to Resettable methods.
* Squashed patches dealing with dGPUs, MMIO area size, and GPU picking.
* Allow re-entrant MMIO; this simplifies the code and solves the divergence
between x86-64 and arm64 variants.
v4:
* Renamed '-vmapple' device variant to '-mmio'
* MMIO device type now requires aarch64 host and guest
* Complete overhaul of the glue code for making Qemu's and
ParavirtualizedGraphics.framework's threading and synchronisation models
work together. Calls into PVG are from dispatch queues while the
BQL-holding initiating thread processes AIO context events; callbacks from
PVG are scheduled as BHs on the BQL/main AIO context, awaiting completion
where necessary.
* Guest frame rendering state is covered by the BQL, with only the PVG calls
outside the lock, and serialised on the named render_queue.
* Simplified logic for dropping frames in-flight during mode changes, fixed
bug in pending frames logic.
* Addressed smaller code review notes such as: function naming, object type
declarations, type names/declarations/casts, code formatting, #include
order, over-cautious ObjC retain/release, what goes in init vs realize,
etc.
v5:
* Smaller non-functional fixes in response to review comments, such as using
NULL for the AIO_WAIT_WHILE context argument, type name formatting,
deleting leftover debug code, logging improvements, state struct field
order and documentation improvements, etc.
* Instead of a single condition variable for all synchronous BH job types,
there is now one for each callback block. This reduces the number
of threads being awoken unnecessarily to near zero.
* MMIO device variant: Unified the BH job for raising interrupts.
* Use DMA APIs for PVG framework's guest memory read requests.
* Thread safety improvements: ensure mutable AppleGFXState fields are not
accessed outside the appropriate lock. Added dedicated mutex for the task
list.
* Retain references to MemoryRegions for which there exist mappings in each
PGTask, and for IOSurface mappings.
hw/display/Kconfig | 9 +
hw/display/apple-gfx-mmio.m | 387 ++++++++++++++++++
hw/display/apple-gfx.h | 79 ++++
hw/display/apple-gfx.m | 773 ++++++++++++++++++++++++++++++++++++
hw/display/meson.build | 4 +
hw/display/trace-events | 28 ++
meson.build | 4 +
7 files changed, 1284 insertions(+)
create mode 100644 hw/display/apple-gfx-mmio.m
create mode 100644 hw/display/apple-gfx.h
create mode 100644 hw/display/apple-gfx.m
diff --git a/hw/display/Kconfig b/hw/display/Kconfig
index 2250c740078..6a9b7b19ada 100644
--- a/hw/display/Kconfig
+++ b/hw/display/Kconfig
@@ -140,3 +140,12 @@ config XLNX_DISPLAYPORT
config DM163
bool
+
+config MAC_PVG
+ bool
+ default y
+
+config MAC_PVG_MMIO
+ bool
+ depends on MAC_PVG && AARCH64
+
diff --git a/hw/display/apple-gfx-mmio.m b/hw/display/apple-gfx-mmio.m
new file mode 100644
index 00000000000..b0c5669a344
--- /dev/null
+++ b/hw/display/apple-gfx-mmio.m
@@ -0,0 +1,387 @@
+/*
+ * QEMU Apple ParavirtualizedGraphics.framework device, MMIO (arm64) variant
+ *
+ * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * ParavirtualizedGraphics.framework is a set of libraries that macOS provides
+ * which implements 3d graphics passthrough to the host as well as a
+ * proprietary guest communication channel to drive it. This device model
+ * implements support to drive that library from within QEMU as an MMIO-based
+ * system device for macOS on arm64 VMs.
+ */
+
+#include "qemu/osdep.h"
+#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
+#include "apple-gfx.h"
+#include "monitor/monitor.h"
+#include "hw/sysbus.h"
+#include "hw/irq.h"
+#include "trace.h"
+#include "qemu/log.h"
+
+OBJECT_DECLARE_SIMPLE_TYPE(AppleGFXMMIOState, APPLE_GFX_MMIO)
+
+/*
+ * ParavirtualizedGraphics.Framework only ships header files for the PCI
+ * variant which does not include IOSFC descriptors and host devices. We add
+ * their definitions here so that we can also work with the ARM version.
+ */
+typedef bool(^IOSFCRaiseInterrupt)(uint32_t vector);
+typedef bool(^IOSFCUnmapMemory)(
+ void *, void *, void *, void *, void *, void *);
+typedef bool(^IOSFCMapMemory)(
+ uint64_t phys, uint64_t len, bool ro, void **va, void *, void *);
+
+@interface PGDeviceDescriptor (IOSurfaceMapper)
+@property (readwrite, nonatomic) bool usingIOSurfaceMapper;
+@end
+
+@interface PGIOSurfaceHostDeviceDescriptor : NSObject
+-(PGIOSurfaceHostDeviceDescriptor *)init;
+@property (readwrite, nonatomic, copy, nullable) IOSFCMapMemory mapMemory;
+@property (readwrite, nonatomic, copy, nullable) IOSFCUnmapMemory unmapMemory;
+@property (readwrite, nonatomic, copy, nullable) IOSFCRaiseInterrupt raiseInterrupt;
+@end
+
+@interface PGIOSurfaceHostDevice : NSObject
+-(instancetype)initWithDescriptor:(PGIOSurfaceHostDeviceDescriptor *)desc;
+-(uint32_t)mmioReadAtOffset:(size_t)offset;
+-(void)mmioWriteAtOffset:(size_t)offset value:(uint32_t)value;
+@end
+
+struct AppleGFXMapSurfaceMemoryJob;
+struct AppleGFXMMIOState {
+ SysBusDevice parent_obj;
+
+ AppleGFXState common;
+
+ QemuCond iosfc_map_job_cond;
+ QemuCond iosfc_unmap_job_cond;
+ qemu_irq irq_gfx;
+ qemu_irq irq_iosfc;
+ MemoryRegion iomem_iosfc;
+ PGIOSurfaceHostDevice *pgiosfc;
+
+ GArray *iosfc_mapped_regions; /* array of AppleGFXMMIOMappedRegion */
+};
+
+typedef struct AppleGFXMMIOJob {
+ AppleGFXMMIOState *state;
+ uint64_t offset;
+ uint64_t value;
+ bool completed;
+} AppleGFXMMIOJob;
+
+static void iosfc_do_read(void *opaque)
+{
+ AppleGFXMMIOJob *job = opaque;
+ job->value = [job->state->pgiosfc mmioReadAtOffset:job->offset];
+ qatomic_set(&job->completed, true);
+ aio_wait_kick();
+}
+
+static uint64_t iosfc_read(void *opaque, hwaddr offset, unsigned size)
+{
+ AppleGFXMMIOJob job = {
+ .state = opaque,
+ .offset = offset,
+ .completed = false,
+ };
+ dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
+
+ dispatch_async_f(queue, &job, iosfc_do_read);
+ AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
+
+ trace_apple_gfx_mmio_iosfc_read(offset, job.value);
+ return job.value;
+}
+
+static void iosfc_do_write(void *opaque)
+{
+ AppleGFXMMIOJob *job = opaque;
+ [job->state->pgiosfc mmioWriteAtOffset:job->offset value:job->value];
+ qatomic_set(&job->completed, true);
+ aio_wait_kick();
+}
+
+static void iosfc_write(void *opaque, hwaddr offset, uint64_t val,
+ unsigned size)
+{
+ AppleGFXMMIOJob job = {
+ .state = opaque,
+ .offset = offset,
+ .value = val,
+ .completed = false,
+ };
+ dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
+
+ dispatch_async_f(queue, &job, iosfc_do_write);
+ AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
+
+ trace_apple_gfx_mmio_iosfc_write(offset, val);
+}
+
+static const MemoryRegionOps apple_iosfc_ops = {
+ .read = iosfc_read,
+ .write = iosfc_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 4,
+ .max_access_size = 8,
+ },
+};
+
+static void raise_irq(void *opaque)
+{
+ qemu_irq *irq = opaque;
+
+ qemu_irq_pulse(*irq);
+}
+
+typedef struct AppleGFXMapSurfaceMemoryJob {
+ uint64_t guest_physical_address;
+ uint64_t guest_physical_length;
+ void *result_mem;
+ AppleGFXMMIOState *state;
+ bool read_only;
+ bool success;
+ bool done;
+} AppleGFXMapSurfaceMemoryJob;
+
+typedef struct AppleGFXMMIOMappedRegion {
+ MemoryRegion *region;
+ uint64_t map_count;
+ uintptr_t host_virtual_start;
+ uintptr_t host_virtual_end;
+} AppleGFXMMIOMappedRegion;
+
+static void apple_gfx_mmio_map_surface_memory(void *opaque)
+{
+ AppleGFXMapSurfaceMemoryJob *job = opaque;
+ AppleGFXMMIOState *s = job->state;
+ mach_vm_address_t mem;
+ MemoryRegion *region = NULL;
+ GArray *regions = s->iosfc_mapped_regions;
+ AppleGFXMMIOMappedRegion *mapped_region;
+ size_t i;
+
+ mem = apple_gfx_host_address_for_gpa_range(job->guest_physical_address,
+ job->guest_physical_length,
+ job->read_only, ®ion);
+
+ if (mem != 0) {
+ for (i = 0; i < regions->len; ++i) {
+ mapped_region = &g_array_index(regions, AppleGFXMMIOMappedRegion, i);
+ if (region == mapped_region->region) {
+ ++mapped_region->map_count;
+ break;
+ }
+ }
+
+ if (i >= regions->len) {
+ /* No existing mapping to this region found, keep a reference and save
+ */
+ uintptr_t start = (uintptr_t)memory_region_get_ram_ptr(region);
+ AppleGFXMMIOMappedRegion new_region = {
+ region, 1,
+ start,
+ start + memory_region_size(region)
+ };
+ memory_region_ref(region);
+ g_array_append_val(regions, new_region);
+ trace_apple_gfx_iosfc_map_memory_new_region(
+ i, region, start, new_region.host_virtual_end);
+ }
+ }
+
+ qemu_mutex_lock(&s->common.job_mutex);
+ job->result_mem = (void *)mem;
+ job->success = mem != 0;
+ job->done = true;
+ qemu_cond_broadcast(&s->iosfc_map_job_cond);
+ qemu_mutex_unlock(&s->common.job_mutex);
+}
+
+typedef struct AppleGFXUnmapSurfaceMemoryJob {
+ void *virtual_address;
+ AppleGFXMMIOState *state;
+ bool done;
+} AppleGFXUnmapSurfaceMemoryJob;
+
+static AppleGFXMMIOMappedRegion *find_mapped_region_containing(GArray *regions,
+ uintptr_t va,
+ size_t *index)
+{
+ size_t i;
+ AppleGFXMMIOMappedRegion *mapped_region;
+
+ for (i = 0; i < regions->len; ++i) {
+ mapped_region = &g_array_index(regions, AppleGFXMMIOMappedRegion, i);
+ if (va >= mapped_region->host_virtual_start &&
+ va < mapped_region->host_virtual_end) {
+ *index = i;
+ return mapped_region;
+ }
+ }
+ return NULL;
+}
+
+static void apple_gfx_mmio_unmap_surface_memory(void *opaque)
+{
+ AppleGFXUnmapSurfaceMemoryJob *job = opaque;
+ AppleGFXMMIOState *s = job->state;
+ uintptr_t mem = (uintptr_t)job->virtual_address;
+ GArray *regions = s->iosfc_mapped_regions;
+ size_t region_index;
+ AppleGFXMMIOMappedRegion *mapped_region =
+ find_mapped_region_containing(regions, mem, ®ion_index);
+
+ if (mapped_region) {
+ trace_apple_gfx_iosfc_unmap_memory_region(mem, region_index, mapped_region->map_count, mapped_region->region);
+ if (--mapped_region->map_count == 0) {
+ memory_region_unref(mapped_region->region);
+ g_array_remove_index_fast(regions, region_index);
+ }
+ } else {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: memory at %p to be unmapped not "
+ "found in any of %u mapped regions.\n",
+ __func__,
+ job->virtual_address, regions->len);
+ }
+
+ qemu_mutex_lock(&s->common.job_mutex);
+ job->done = true;
+ qemu_cond_broadcast(&s->iosfc_unmap_job_cond);
+ qemu_mutex_unlock(&s->common.job_mutex);
+}
+
+static PGIOSurfaceHostDevice *apple_gfx_prepare_iosurface_host_device(
+ AppleGFXMMIOState *s)
+{
+ PGIOSurfaceHostDeviceDescriptor *iosfc_desc =
+ [PGIOSurfaceHostDeviceDescriptor new];
+ PGIOSurfaceHostDevice *iosfc_host_dev = nil;
+
+ iosfc_desc.mapMemory =
+ ^bool(uint64_t phys, uint64_t len, bool ro, void **va, void *e, void *f) {
+ AppleGFXMapSurfaceMemoryJob job = {
+ .guest_physical_address = phys, .guest_physical_length = len,
+ .read_only = ro, .state = s,
+ };
+
+ aio_bh_schedule_oneshot(qemu_get_aio_context(),
+ apple_gfx_mmio_map_surface_memory, &job);
+ apple_gfx_await_bh_job(&s->common, &s->iosfc_map_job_cond, &job.done);
+
+ *va = job.result_mem;
+
+ trace_apple_gfx_iosfc_map_memory(phys, len, ro, va, e, f, *va,
+ job.success);
+
+ return job.success;
+ };
+
+ iosfc_desc.unmapMemory =
+ ^bool(void *va, void *b, void *c, void *d, void *e, void *f) {
+ AppleGFXUnmapSurfaceMemoryJob job = { va, s };
+ trace_apple_gfx_iosfc_unmap_memory(va, b, c, d, e, f);
+
+ aio_bh_schedule_oneshot(qemu_get_aio_context(),
+ apple_gfx_mmio_unmap_surface_memory, &job);
+ apple_gfx_await_bh_job(&s->common, &s->iosfc_unmap_job_cond, &job.done);
+
+ return true;
+ };
+
+ iosfc_desc.raiseInterrupt = ^bool(uint32_t vector) {
+ trace_apple_gfx_iosfc_raise_irq(vector);
+ aio_bh_schedule_oneshot(qemu_get_aio_context(),
+ raise_irq, &s->irq_iosfc);
+ return true;
+ };
+
+ iosfc_host_dev =
+ [[PGIOSurfaceHostDevice alloc] initWithDescriptor:iosfc_desc];
+ [iosfc_desc release];
+ return iosfc_host_dev;
+}
+
+static void apple_gfx_mmio_realize(DeviceState *dev, Error **errp)
+{
+ @autoreleasepool {
+ AppleGFXMMIOState *s = APPLE_GFX_MMIO(dev);
+ PGDeviceDescriptor *desc = [PGDeviceDescriptor new];
+
+ desc.raiseInterrupt = ^(uint32_t vector) {
+ trace_apple_gfx_raise_irq(vector);
+ aio_bh_schedule_oneshot(qemu_get_aio_context(),
+ raise_irq, &s->irq_gfx);
+ };
+
+ desc.usingIOSurfaceMapper = true;
+ s->pgiosfc = apple_gfx_prepare_iosurface_host_device(s);
+
+ s->iosfc_mapped_regions =
+ g_array_sized_new(false /* no termination */, true /* clear */,
+ sizeof(AppleGFXMMIOMappedRegion),
+ 2 /* Usually no more RAM regions*/);
+
+ apple_gfx_common_realize(&s->common, desc, errp);
+ qemu_cond_init(&s->iosfc_map_job_cond);
+ qemu_cond_init(&s->iosfc_unmap_job_cond);
+
+ [desc release];
+ desc = nil;
+ }
+}
+
+static void apple_gfx_mmio_init(Object *obj)
+{
+ AppleGFXMMIOState *s = APPLE_GFX_MMIO(obj);
+
+ apple_gfx_common_init(obj, &s->common, TYPE_APPLE_GFX_MMIO);
+
+ sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->common.iomem_gfx);
+ memory_region_init_io(&s->iomem_iosfc, obj, &apple_iosfc_ops, s,
+ TYPE_APPLE_GFX_MMIO, 0x10000);
+ sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem_iosfc);
+ sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq_gfx);
+ sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq_iosfc);
+}
+
+static void apple_gfx_mmio_reset(Object *obj, ResetType type)
+{
+ AppleGFXMMIOState *s = APPLE_GFX_MMIO(obj);
+ [s->common.pgdev reset];
+}
+
+
+static void apple_gfx_mmio_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ ResettableClass *rc = RESETTABLE_CLASS(klass);
+
+ rc->phases.hold = apple_gfx_mmio_reset;
+ dc->hotpluggable = false;
+ dc->realize = apple_gfx_mmio_realize;
+}
+
+static TypeInfo apple_gfx_mmio_types[] = {
+ {
+ .name = TYPE_APPLE_GFX_MMIO,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(AppleGFXMMIOState),
+ .class_init = apple_gfx_mmio_class_init,
+ .instance_init = apple_gfx_mmio_init,
+ }
+};
+DEFINE_TYPES(apple_gfx_mmio_types)
diff --git a/hw/display/apple-gfx.h b/hw/display/apple-gfx.h
new file mode 100644
index 00000000000..ef34e8160c8
--- /dev/null
+++ b/hw/display/apple-gfx.h
@@ -0,0 +1,79 @@
+/*
+ * Data structures and functions shared between variants of the macOS
+ * ParavirtualizedGraphics.framework based apple-gfx display adapter.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef QEMU_APPLE_GFX_H
+#define QEMU_APPLE_GFX_H
+
+#define TYPE_APPLE_GFX_MMIO "apple-gfx-mmio"
+#define TYPE_APPLE_GFX_PCI "apple-gfx-pci"
+
+#include "qemu/osdep.h"
+#include <dispatch/dispatch.h>
+#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
+#include "qemu/typedefs.h"
+#include "exec/memory.h"
+#include "ui/surface.h"
+
+@class PGDeviceDescriptor;
+@protocol PGDevice;
+@protocol PGDisplay;
+@protocol MTLDevice;
+@protocol MTLTexture;
+@protocol MTLCommandQueue;
+
+typedef QTAILQ_HEAD(, PGTask_s) PGTaskList;
+
+typedef struct AppleGFXState {
+ /* Initialised on init/realize() */
+ MemoryRegion iomem_gfx;
+ id<PGDevice> pgdev;
+ id<PGDisplay> pgdisp;
+ QemuConsole *con;
+ id<MTLDevice> mtl;
+ id<MTLCommandQueue> mtl_queue;
+ dispatch_queue_t render_queue;
+ /*
+ * QemuMutex & QemuConds for awaiting completion of PVG memory-mapping and
+ * reading requests after submitting them to run in the AIO context.
+ * QemuCond (rather than QemuEvent) are used so multiple concurrent jobs
+ * can be handled safely.
+ * The state associated with each job is tracked in a AppleGFX*Job struct
+ * for each kind of job; instances are allocated on the caller's stack.
+ * This struct also contains the completion flag which is used in
+ * conjunction with the condition variable.
+ */
+ QemuMutex job_mutex;
+ QemuCond task_map_job_cond;
+ QemuCond mem_read_job_cond;
+
+ /* tasks is protected by task_mutex */
+ QemuMutex task_mutex;
+ PGTaskList tasks;
+
+ /* Mutable state (BQL) */
+ QEMUCursor *cursor;
+ bool cursor_show;
+ bool gfx_update_requested;
+ bool new_frame_ready;
+ bool using_managed_texture_storage;
+ int32_t pending_frames;
+ void *vram;
+ DisplaySurface *surface;
+ id<MTLTexture> texture;
+} AppleGFXState;
+
+void apple_gfx_common_init(Object *obj, AppleGFXState *s, const char* obj_name);
+void apple_gfx_common_realize(AppleGFXState *s, PGDeviceDescriptor *desc,
+ Error **errp);
+uintptr_t apple_gfx_host_address_for_gpa_range(uint64_t guest_physical,
+ uint64_t length, bool read_only,
+ MemoryRegion **mapping_in_region);
+void apple_gfx_await_bh_job(AppleGFXState *s, QemuCond *job_cond,
+ bool *job_done_flag);
+
+#endif
+
diff --git a/hw/display/apple-gfx.m b/hw/display/apple-gfx.m
new file mode 100644
index 00000000000..101b38e8a6e
--- /dev/null
+++ b/hw/display/apple-gfx.m
@@ -0,0 +1,773 @@
+/*
+ * QEMU Apple ParavirtualizedGraphics.framework device
+ *
+ * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * ParavirtualizedGraphics.framework is a set of libraries that macOS provides
+ * which implements 3d graphics passthrough to the host as well as a
+ * proprietary guest communication channel to drive it. This device model
+ * implements support to drive that library from within QEMU.
+ */
+
+#include "qemu/osdep.h"
+#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
+#include <mach/mach_vm.h>
+#include "apple-gfx.h"
+#include "trace.h"
+#include "qemu-main.h"
+#include "exec/address-spaces.h"
+#include "migration/blocker.h"
+#include "monitor/monitor.h"
+#include "qemu/main-loop.h"
+#include "qemu/cutils.h"
+#include "qemu/log.h"
+#include "qapi/visitor.h"
+#include "qapi/error.h"
+#include "sysemu/dma.h"
+#include "ui/console.h"
+
+static const PGDisplayCoord_t apple_gfx_modes[] = {
+ { .x = 1440, .y = 1080 },
+ { .x = 1280, .y = 1024 },
+};
+
+/* This implements a type defined in <ParavirtualizedGraphics/PGDevice.h>
+ * which is opaque from the framework's point of view. Typedef PGTask_t already
+ * exists in the framework headers. */
+struct PGTask_s {
+ QTAILQ_ENTRY(PGTask_s) node;
+ AppleGFXState *s;
+ mach_vm_address_t address;
+ uint64_t len;
+ /*
+ * All unique MemoryRegions for which a mapping has been created in in this
+ * task, and on which we have thus called memory_region_ref(). There are
+ * usually very few regions of system RAM in total, so we expect this array
+ * to be very short. Therefore, no need for sorting or fancy search
+ * algorithms, linear search will do. */
+ GArray *mapped_regions;
+};
+
+static Error *apple_gfx_mig_blocker;
+
+static void apple_gfx_render_frame_completed(AppleGFXState *s,
+ uint32_t width, uint32_t height);
+
+static dispatch_queue_t get_background_queue(void)
+{
+ return dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
+}
+
+static PGTask_t *apple_gfx_new_task(AppleGFXState *s, uint64_t len)
+{
+ mach_vm_address_t task_mem;
+ PGTask_t *task;
+ kern_return_t r;
+
+ r = mach_vm_allocate(mach_task_self(), &task_mem, len, VM_FLAGS_ANYWHERE);
+ if (r != KERN_SUCCESS) {
+ return NULL;
+ }
+
+ task = g_new0(PGTask_t, 1);
+ task->s = s;
+ task->address = task_mem;
+ task->len = len;
+ task->mapped_regions = g_array_sized_new(false /* no termination */,
+ true /* clear */,
+ sizeof(MemoryRegion *),
+ 2 /* Usually no more RAM regions*/);
+
+ QEMU_LOCK_GUARD(&s->task_mutex);
+ QTAILQ_INSERT_TAIL(&s->tasks, task, node);
+
+ return task;
+}
+
+typedef struct AppleGFXIOJob {
+ AppleGFXState *state;
+ uint64_t offset;
+ uint64_t value;
+ bool completed;
+} AppleGFXIOJob;
+
+static void apple_gfx_do_read(void *opaque)
+{
+ AppleGFXIOJob *job = opaque;
+ job->value = [job->state->pgdev mmioReadAtOffset:job->offset];
+ qatomic_set(&job->completed, true);
+ aio_wait_kick();
+}
+
+static uint64_t apple_gfx_read(void *opaque, hwaddr offset, unsigned size)
+{
+ AppleGFXIOJob job = {
+ .state = opaque,
+ .offset = offset,
+ .completed = false,
+ };
+ dispatch_queue_t queue = get_background_queue();
+
+ dispatch_async_f(queue, &job, apple_gfx_do_read);
+ AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
+
+ trace_apple_gfx_read(offset, job.value);
+ return job.value;
+}
+
+static void apple_gfx_do_write(void *opaque)
+{
+ AppleGFXIOJob *job = opaque;
+ [job->state->pgdev mmioWriteAtOffset:job->offset value:job->value];
+ qatomic_set(&job->completed, true);
+ aio_wait_kick();
+}
+
+static void apple_gfx_write(void *opaque, hwaddr offset, uint64_t val,
+ unsigned size)
+{
+ /* The methods mmioReadAtOffset: and especially mmioWriteAtOffset: can
+ * trigger and block on operations on other dispatch queues, which in turn
+ * may call back out on one or more of the callback blocks. For this reason,
+ * and as we are holding the BQL, we invoke the I/O methods on a pool
+ * thread and handle AIO tasks while we wait. Any work in the callbacks
+ * requiring the BQL will in turn schedule BHs which this thread will
+ * process while waiting. */
+ AppleGFXIOJob job = {
+ .state = opaque,
+ .offset = offset,
+ .value = val,
+ .completed = false,
+ };
+ dispatch_queue_t queue = get_background_queue();
+
+ dispatch_async_f(queue, &job, apple_gfx_do_write);
+ AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
+
+ trace_apple_gfx_write(offset, val);
+}
+
+static const MemoryRegionOps apple_gfx_ops = {
+ .read = apple_gfx_read,
+ .write = apple_gfx_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+};
+
+static void apple_gfx_render_new_frame_bql_unlock(AppleGFXState *s)
+{
+ BOOL r;
+ bool managed_texture = s->using_managed_texture_storage;
+ uint32_t width = surface_width(s->surface);
+ uint32_t height = surface_height(s->surface);
+ MTLRegion region = MTLRegionMake2D(0, 0, width, height);
+ id<MTLCommandBuffer> command_buffer = [s->mtl_queue commandBuffer];
+ id<MTLTexture> texture = s->texture;
+
+ assert(bql_locked());
+ [texture retain];
+
+ bql_unlock();
+
+ /* This is not safe to call from the BQL due to PVG-internal locks causing
+ * deadlocks. */
+ r = [s->pgdisp encodeCurrentFrameToCommandBuffer:command_buffer
+ texture:texture
+ region:region];
+ if (!r) {
+ [texture release];
+ bql_lock();
+ --s->pending_frames;
+ bql_unlock();
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: encodeCurrentFrameToCommandBuffer:texture:region: "
+ "failed\n", __func__);
+ return;
+ }
+
+ if (managed_texture) {
+ /* "Managed" textures exist in both VRAM and RAM and must be synced. */
+ id<MTLBlitCommandEncoder> blit = [command_buffer blitCommandEncoder];
+ [blit synchronizeResource:texture];
+ [blit endEncoding];
+ }
+ [texture release];
+ [command_buffer addCompletedHandler:
+ ^(id<MTLCommandBuffer> cb)
+ {
+ dispatch_async(s->render_queue, ^{
+ apple_gfx_render_frame_completed(s, width, height);
+ });
+ }];
+ [command_buffer commit];
+}
+
+static void copy_mtl_texture_to_surface_mem(id<MTLTexture> texture, void *vram)
+{
+ /* TODO: Skip this entirely on a pure Metal or headless/guest-only
+ * rendering path, else use a blit command encoder? Needs careful
+ * (double?) buffering design. */
+ size_t width = texture.width, height = texture.height;
+ MTLRegion region = MTLRegionMake2D(0, 0, width, height);
+ [texture getBytes:vram
+ bytesPerRow:(width * 4)
+ bytesPerImage:(width * height * 4)
+ fromRegion:region
+ mipmapLevel:0
+ slice:0];
+}
+
+static void apple_gfx_render_frame_completed(AppleGFXState *s,
+ uint32_t width, uint32_t height)
+{
+ bql_lock();
+ --s->pending_frames;
+ assert(s->pending_frames >= 0);
+
+ /* Only update display if mode hasn't changed since we started rendering. */
+ if (width == surface_width(s->surface) &&
+ height == surface_height(s->surface)) {
+ copy_mtl_texture_to_surface_mem(s->texture, s->vram);
+ if (s->gfx_update_requested) {
+ s->gfx_update_requested = false;
+ dpy_gfx_update_full(s->con);
+ graphic_hw_update_done(s->con);
+ s->new_frame_ready = false;
+ } else {
+ s->new_frame_ready = true;
+ }
+ }
+ if (s->pending_frames > 0) {
+ apple_gfx_render_new_frame_bql_unlock(s);
+ } else {
+ bql_unlock();
+ }
+}
+
+static void apple_gfx_fb_update_display(void *opaque)
+{
+ AppleGFXState *s = opaque;
+
+ assert(bql_locked());
+ if (s->new_frame_ready) {
+ dpy_gfx_update_full(s->con);
+ s->new_frame_ready = false;
+ graphic_hw_update_done(s->con);
+ } else if (s->pending_frames > 0) {
+ s->gfx_update_requested = true;
+ } else {
+ graphic_hw_update_done(s->con);
+ }
+}
+
+static const GraphicHwOps apple_gfx_fb_ops = {
+ .gfx_update = apple_gfx_fb_update_display,
+ .gfx_update_async = true,
+};
+
+static void update_cursor(AppleGFXState *s)
+{
+ assert(bql_locked());
+ dpy_mouse_set(s->con, s->pgdisp.cursorPosition.x,
+ s->pgdisp.cursorPosition.y, s->cursor_show);
+}
+
+static void set_mode(AppleGFXState *s, uint32_t width, uint32_t height)
+{
+ MTLTextureDescriptor *textureDescriptor;
+
+ if (s->surface &&
+ width == surface_width(s->surface) &&
+ height == surface_height(s->surface)) {
+ return;
+ }
+
+ g_free(s->vram);
+ [s->texture release];
+
+ s->vram = g_malloc0_n(width * height, 4);
+ s->surface = qemu_create_displaysurface_from(width, height, PIXMAN_LE_a8r8g8b8,
+ width * 4, s->vram);
+
+ @autoreleasepool {
+ textureDescriptor =
+ [MTLTextureDescriptor
+ texture2DDescriptorWithPixelFormat:MTLPixelFormatBGRA8Unorm
+ width:width
+ height:height
+ mipmapped:NO];
+ textureDescriptor.usage = s->pgdisp.minimumTextureUsage;
+ s->texture = [s->mtl newTextureWithDescriptor:textureDescriptor];
+ }
+
+ s->using_managed_texture_storage =
+ (s->texture.storageMode == MTLStorageModeManaged);
+ dpy_gfx_replace_surface(s->con, s->surface);
+}
+
+static void create_fb(AppleGFXState *s)
+{
+ s->con = graphic_console_init(NULL, 0, &apple_gfx_fb_ops, s);
+ set_mode(s, 1440, 1080);
+
+ s->cursor_show = true;
+}
+
+static size_t apple_gfx_get_default_mmio_range_size(void)
+{
+ size_t mmio_range_size;
+ @autoreleasepool {
+ PGDeviceDescriptor *desc = [PGDeviceDescriptor new];
+ mmio_range_size = desc.mmioLength;
+ [desc release];
+ }
+ return mmio_range_size;
+}
+
+void apple_gfx_common_init(Object *obj, AppleGFXState *s, const char* obj_name)
+{
+ size_t mmio_range_size = apple_gfx_get_default_mmio_range_size();
+
+ trace_apple_gfx_common_init(obj_name, mmio_range_size);
+ memory_region_init_io(&s->iomem_gfx, obj, &apple_gfx_ops, s, obj_name,
+ mmio_range_size);
+
+ /* TODO: PVG framework supports serialising device state: integrate it! */
+}
+
+typedef struct AppleGFXMapMemoryJob {
+ AppleGFXState *state;
+ PGTask_t *task;
+ uint64_t virtual_offset;
+ PGPhysicalMemoryRange_t *ranges;
+ uint32_t range_count;
+ bool read_only;
+ bool success;
+ bool done;
+} AppleGFXMapMemoryJob;
+
+uintptr_t apple_gfx_host_address_for_gpa_range(uint64_t guest_physical,
+ uint64_t length, bool read_only,
+ MemoryRegion **mapping_in_region)
+{
+ MemoryRegion *ram_region;
+ uintptr_t host_address;
+ hwaddr ram_region_offset = 0;
+ hwaddr ram_region_length = length;
+
+ ram_region = address_space_translate(&address_space_memory,
+ guest_physical,
+ &ram_region_offset,
+ &ram_region_length, !read_only,
+ MEMTXATTRS_UNSPECIFIED);
+
+ if (!ram_region || ram_region_length < length ||
+ !memory_access_is_direct(ram_region, !read_only)) {
+ return 0;
+ }
+
+ host_address = (uintptr_t)memory_region_get_ram_ptr(ram_region);
+ if (host_address == 0) {
+ return 0;
+ }
+ host_address += ram_region_offset;
+ *mapping_in_region = ram_region;
+ return host_address;
+}
+
+/* Returns false if the region is already in the array */
+static bool add_new_region(GArray *regions, MemoryRegion *region)
+{
+ MemoryRegion *existing;
+ size_t i;
+
+ for (i = 0; i < regions->len; ++i) {
+ existing = g_array_index(regions, MemoryRegion *, i);
+ if (existing == region) {
+ return false;
+ }
+ }
+ g_array_append_val(regions, region);
+ return true;
+}
+
+static void apple_gfx_map_memory(void *opaque)
+{
+ AppleGFXMapMemoryJob *job = opaque;
+ AppleGFXState *s = job->state;
+ PGTask_t *task = job->task;
+ uint32_t range_count = job->range_count;
+ uint64_t virtual_offset = job->virtual_offset;
+ PGPhysicalMemoryRange_t *ranges = job->ranges;
+ bool read_only = job->read_only;
+ kern_return_t r;
+ mach_vm_address_t target, source;
+ vm_prot_t cur_protection, max_protection;
+ bool success = true;
+ MemoryRegion *region;
+
+ g_assert(bql_locked());
+
+ trace_apple_gfx_map_memory(task, range_count, virtual_offset, read_only);
+ for (int i = 0; i < range_count; i++) {
+ PGPhysicalMemoryRange_t *range = &ranges[i];
+
+ target = task->address + virtual_offset;
+ virtual_offset += range->physicalLength;
+
+ trace_apple_gfx_map_memory_range(i, range->physicalAddress,
+ range->physicalLength);
+
+ region = NULL;
+ source = apple_gfx_host_address_for_gpa_range(range->physicalAddress,
+ range->physicalLength,
+ read_only, ®ion);
+ if (source == 0) {
+ success = false;
+ continue;
+ }
+
+ if (add_new_region(task->mapped_regions, region)) {
+ memory_region_ref(region);
+ }
+
+ cur_protection = 0;
+ max_protection = 0;
+ // Map guest RAM at range->physicalAddress into PG task memory range
+ r = mach_vm_remap(mach_task_self(),
+ &target, range->physicalLength, vm_page_size - 1,
+ VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE,
+ mach_task_self(),
+ source, false /* shared mapping, no copy */,
+ &cur_protection, &max_protection,
+ VM_INHERIT_COPY);
+ trace_apple_gfx_remap(r, source, target);
+ g_assert(r == KERN_SUCCESS);
+ }
+
+ qemu_mutex_lock(&s->job_mutex);
+ job->success = success;
+ job->done = true;
+ qemu_cond_broadcast(&s->task_map_job_cond);
+ qemu_mutex_unlock(&s->job_mutex);
+}
+
+void apple_gfx_await_bh_job(AppleGFXState *s, QemuCond *job_cond, bool *job_done_flag)
+{
+ qemu_mutex_lock(&s->job_mutex);
+ while (!*job_done_flag) {
+ qemu_cond_wait(job_cond, &s->job_mutex);
+ }
+ qemu_mutex_unlock(&s->job_mutex);
+}
+
+typedef struct AppleGFXReadMemoryJob {
+ AppleGFXState *s;
+ hwaddr physical_address;
+ uint64_t length;
+ void *dst;
+ bool done;
+ bool success;
+} AppleGFXReadMemoryJob;
+
+static void apple_gfx_do_read_memory(void *opaque)
+{
+ AppleGFXReadMemoryJob *job = opaque;
+ AppleGFXState *s = job->s;
+ MemTxResult r;
+
+ r = dma_memory_read(&address_space_memory, job->physical_address,
+ job->dst, job->length, MEMTXATTRS_UNSPECIFIED);
+ job->success = r == MEMTX_OK;
+
+ qemu_mutex_lock(&s->job_mutex);
+ job->done = true;
+ qemu_cond_broadcast(&s->mem_read_job_cond);
+ qemu_mutex_unlock(&s->job_mutex);
+}
+
+static bool apple_gfx_read_memory(AppleGFXState *s, hwaddr physical_address,
+ uint64_t length, void *dst)
+{
+ AppleGFXReadMemoryJob job = {
+ s, physical_address, length, dst
+ };
+
+ trace_apple_gfx_read_memory(physical_address, length, dst);
+
+ /* Traversing the memory map requires RCU/BQL, so do it in a BH. */
+ aio_bh_schedule_oneshot(qemu_get_aio_context(), apple_gfx_do_read_memory,
+ &job);
+ apple_gfx_await_bh_job(s, &s->mem_read_job_cond, &job.done);
+ return job.success;
+}
+
+static void apple_gfx_task_destroy(AppleGFXState *s, PGTask_t *task)
+{
+ GArray *regions = task->mapped_regions;
+ MemoryRegion *region;
+ size_t i;
+
+ for (i = 0; i < regions->len; ++i) {
+ region = g_array_index(regions, MemoryRegion *, i);
+ memory_region_unref(region);
+ }
+ g_array_unref(regions);
+
+ mach_vm_deallocate(mach_task_self(), task->address, task->len);
+
+ QEMU_LOCK_GUARD(&s->task_mutex);
+ QTAILQ_REMOVE(&s->tasks, task, node);
+ g_free(task);
+}
+
+static void apple_gfx_register_task_mapping_handlers(AppleGFXState *s,
+ PGDeviceDescriptor *desc)
+{
+ desc.createTask = ^(uint64_t vmSize, void * _Nullable * _Nonnull baseAddress) {
+ PGTask_t *task = apple_gfx_new_task(s, vmSize);
+ *baseAddress = (void *)task->address;
+ trace_apple_gfx_create_task(vmSize, *baseAddress);
+ return task;
+ };
+
+ desc.destroyTask = ^(PGTask_t * _Nonnull task) {
+ trace_apple_gfx_destroy_task(task, task->mapped_regions->len);
+
+ apple_gfx_task_destroy(s, task);
+ };
+
+ desc.mapMemory = ^bool(PGTask_t * _Nonnull task, uint32_t range_count,
+ uint64_t virtual_offset, bool read_only,
+ PGPhysicalMemoryRange_t * _Nonnull ranges) {
+ AppleGFXMapMemoryJob job = {
+ .state = s,
+ .task = task, .ranges = ranges, .range_count = range_count,
+ .read_only = read_only, .virtual_offset = virtual_offset,
+ .done = false, .success = true,
+ };
+ if (range_count > 0) {
+ aio_bh_schedule_oneshot(qemu_get_aio_context(),
+ apple_gfx_map_memory, &job);
+ apple_gfx_await_bh_job(s, &s->task_map_job_cond, &job.done);
+ }
+ return job.success;
+ };
+
+ desc.unmapMemory = ^bool(PGTask_t * _Nonnull task, uint64_t virtualOffset,
+ uint64_t length) {
+ kern_return_t r;
+ mach_vm_address_t range_address;
+
+ trace_apple_gfx_unmap_memory(task, virtualOffset, length);
+
+ /* Replace task memory range with fresh pages, undoing the mapping
+ * from guest RAM. */
+ range_address = task->address + virtualOffset;
+ r = mach_vm_allocate(mach_task_self(), &range_address, length,
+ VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE);
+ g_assert(r == KERN_SUCCESS);
+
+ return true;
+ };
+
+ desc.readMemory = ^bool(uint64_t physical_address, uint64_t length,
+ void * _Nonnull dst) {
+ return apple_gfx_read_memory(s, physical_address, length, dst);
+ };
+}
+
+static PGDisplayDescriptor *apple_gfx_prepare_display_descriptor(AppleGFXState *s)
+{
+ PGDisplayDescriptor *disp_desc = [PGDisplayDescriptor new];
+
+ disp_desc.name = @"QEMU display";
+ disp_desc.sizeInMillimeters = NSMakeSize(400., 300.); /* A 20" display */
+ disp_desc.queue = dispatch_get_main_queue();
+ disp_desc.newFrameEventHandler = ^(void) {
+ trace_apple_gfx_new_frame();
+ dispatch_async(s->render_queue, ^{
+ /* Drop frames if we get too far ahead. */
+ bql_lock();
+ if (s->pending_frames >= 2) {
+ bql_unlock();
+ return;
+ }
+ ++s->pending_frames;
+ if (s->pending_frames > 1) {
+ bql_unlock();
+ return;
+ }
+ @autoreleasepool {
+ apple_gfx_render_new_frame_bql_unlock(s);
+ }
+ });
+ };
+ disp_desc.modeChangeHandler = ^(PGDisplayCoord_t sizeInPixels,
+ OSType pixelFormat) {
+ trace_apple_gfx_mode_change(sizeInPixels.x, sizeInPixels.y);
+
+ BQL_LOCK_GUARD();
+ set_mode(s, sizeInPixels.x, sizeInPixels.y);
+ };
+ disp_desc.cursorGlyphHandler = ^(NSBitmapImageRep *glyph,
+ PGDisplayCoord_t hotSpot) {
+ [glyph retain];
+ dispatch_async(get_background_queue(), ^{
+ BQL_LOCK_GUARD();
+ uint32_t bpp = glyph.bitsPerPixel;
+ size_t width = glyph.pixelsWide;
+ size_t height = glyph.pixelsHigh;
+ size_t padding_bytes_per_row = glyph.bytesPerRow - width * 4;
+ const uint8_t* px_data = glyph.bitmapData;
+
+ trace_apple_gfx_cursor_set(bpp, width, height);
+
+ if (s->cursor) {
+ cursor_unref(s->cursor);
+ s->cursor = NULL;
+ }
+
+ if (bpp == 32) { /* Shouldn't be anything else, but just to be safe...*/
+ s->cursor = cursor_alloc(width, height);
+ s->cursor->hot_x = hotSpot.x;
+ s->cursor->hot_y = hotSpot.y;
+
+ uint32_t *dest_px = s->cursor->data;
+
+ for (size_t y = 0; y < height; ++y) {
+ for (size_t x = 0; x < width; ++x) {
+ /* NSBitmapImageRep's red & blue channels are swapped
+ * compared to QEMUCursor's. */
+ *dest_px =
+ (px_data[0] << 16u) |
+ (px_data[1] << 8u) |
+ (px_data[2] << 0u) |
+ (px_data[3] << 24u);
+ ++dest_px;
+ px_data += 4;
+ }
+ px_data += padding_bytes_per_row;
+ }
+ dpy_cursor_define(s->con, s->cursor);
+ update_cursor(s);
+ }
+ [glyph release];
+ });
+ };
+ disp_desc.cursorShowHandler = ^(BOOL show) {
+ dispatch_async(get_background_queue(), ^{
+ BQL_LOCK_GUARD();
+ trace_apple_gfx_cursor_show(show);
+ s->cursor_show = show;
+ update_cursor(s);
+ });
+ };
+ disp_desc.cursorMoveHandler = ^(void) {
+ dispatch_async(get_background_queue(), ^{
+ BQL_LOCK_GUARD();
+ trace_apple_gfx_cursor_move();
+ update_cursor(s);
+ });
+ };
+
+ return disp_desc;
+}
+
+static NSArray<PGDisplayMode*>* apple_gfx_prepare_display_mode_array(void)
+{
+ PGDisplayMode *modes[ARRAY_SIZE(apple_gfx_modes)];
+ NSArray<PGDisplayMode*>* mode_array = nil;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(apple_gfx_modes); i++) {
+ modes[i] =
+ [[PGDisplayMode alloc] initWithSizeInPixels:apple_gfx_modes[i] refreshRateInHz:60.];
+ }
+
+ mode_array = [NSArray arrayWithObjects:modes count:ARRAY_SIZE(apple_gfx_modes)];
+
+ for (i = 0; i < ARRAY_SIZE(apple_gfx_modes); i++) {
+ [modes[i] release];
+ modes[i] = nil;
+ }
+
+ return mode_array;
+}
+
+static id<MTLDevice> copy_suitable_metal_device(void)
+{
+ id<MTLDevice> dev = nil;
+ NSArray<id<MTLDevice>> *devs = MTLCopyAllDevices();
+
+ /* Prefer a unified memory GPU. Failing that, pick a non-removable GPU. */
+ for (size_t i = 0; i < devs.count; ++i) {
+ if (devs[i].hasUnifiedMemory) {
+ dev = devs[i];
+ break;
+ }
+ if (!devs[i].removable) {
+ dev = devs[i];
+ }
+ }
+
+ if (dev != nil) {
+ [dev retain];
+ } else {
+ dev = MTLCreateSystemDefaultDevice();
+ }
+ [devs release];
+
+ return dev;
+}
+
+void apple_gfx_common_realize(AppleGFXState *s, PGDeviceDescriptor *desc,
+ Error **errp)
+{
+ PGDisplayDescriptor *disp_desc = nil;
+
+ if (apple_gfx_mig_blocker == NULL) {
+ error_setg(&apple_gfx_mig_blocker,
+ "Migration state blocked by apple-gfx display device");
+ if (migrate_add_blocker(&apple_gfx_mig_blocker, errp) < 0) {
+ return;
+ }
+ }
+
+ qemu_mutex_init(&s->task_mutex);
+ QTAILQ_INIT(&s->tasks);
+ s->render_queue = dispatch_queue_create("apple-gfx.render",
+ DISPATCH_QUEUE_SERIAL);
+ s->mtl = copy_suitable_metal_device();
+ s->mtl_queue = [s->mtl newCommandQueue];
+
+ desc.device = s->mtl;
+
+ apple_gfx_register_task_mapping_handlers(s, desc);
+
+ s->pgdev = PGNewDeviceWithDescriptor(desc);
+
+ disp_desc = apple_gfx_prepare_display_descriptor(s);
+ s->pgdisp = [s->pgdev newDisplayWithDescriptor:disp_desc
+ port:0 serialNum:1234];
+ [disp_desc release];
+ s->pgdisp.modeList = apple_gfx_prepare_display_mode_array();
+
+ create_fb(s);
+
+ qemu_mutex_init(&s->job_mutex);
+ qemu_cond_init(&s->task_map_job_cond);
+ qemu_cond_init(&s->mem_read_job_cond);
+}
diff --git a/hw/display/meson.build b/hw/display/meson.build
index 20a94973fa2..619e642905a 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -61,6 +61,10 @@ system_ss.add(when: 'CONFIG_ARTIST', if_true: files('artist.c'))
system_ss.add(when: 'CONFIG_ATI_VGA', if_true: [files('ati.c', 'ati_2d.c', 'ati_dbg.c'), pixman])
+system_ss.add(when: 'CONFIG_MAC_PVG', if_true: [files('apple-gfx.m'), pvg, metal])
+if cpu == 'aarch64'
+ system_ss.add(when: 'CONFIG_MAC_PVG_MMIO', if_true: [files('apple-gfx-mmio.m'), pvg, metal])
+endif
if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
virtio_gpu_ss = ss.source_set()
diff --git a/hw/display/trace-events b/hw/display/trace-events
index 781f8a33203..d63fba6d094 100644
--- a/hw/display/trace-events
+++ b/hw/display/trace-events
@@ -191,3 +191,31 @@ dm163_bits_ppi(unsigned dest_width) "dest_width : %u"
dm163_leds(int led, uint32_t value) "led %d: 0x%x"
dm163_channels(int channel, uint8_t value) "channel %d: 0x%x"
dm163_refresh_rate(uint32_t rr) "refresh rate %d"
+
+# apple-gfx.m
+apple_gfx_read(uint64_t offset, uint64_t res) "offset=0x%"PRIx64" res=0x%"PRIx64
+apple_gfx_write(uint64_t offset, uint64_t val) "offset=0x%"PRIx64" val=0x%"PRIx64
+apple_gfx_create_task(uint32_t vm_size, void *va) "vm_size=0x%x base_addr=%p"
+apple_gfx_destroy_task(void *task, unsigned int num_mapped_regions) "task=%p, task->mapped_regions->len=%u"
+apple_gfx_map_memory(void *task, uint32_t range_count, uint64_t virtual_offset, uint32_t read_only) "task=%p range_count=0x%x virtual_offset=0x%"PRIx64" read_only=%d"
+apple_gfx_map_memory_range(uint32_t i, uint64_t phys_addr, uint64_t phys_len) "[%d] phys_addr=0x%"PRIx64" phys_len=0x%"PRIx64
+apple_gfx_remap(uint64_t retval, uint64_t source, uint64_t target) "retval=%"PRId64" source=0x%"PRIx64" target=0x%"PRIx64
+apple_gfx_unmap_memory(void *task, uint64_t virtual_offset, uint64_t length) "task=%p virtual_offset=0x%"PRIx64" length=0x%"PRIx64
+apple_gfx_read_memory(uint64_t phys_address, uint64_t length, void *dst) "phys_addr=0x%"PRIx64" length=0x%"PRIx64" dest=%p"
+apple_gfx_raise_irq(uint32_t vector) "vector=0x%x"
+apple_gfx_new_frame(void) ""
+apple_gfx_mode_change(uint64_t x, uint64_t y) "x=%"PRId64" y=%"PRId64
+apple_gfx_cursor_set(uint32_t bpp, uint64_t width, uint64_t height) "bpp=%d width=%"PRId64" height=0x%"PRId64
+apple_gfx_cursor_show(uint32_t show) "show=%d"
+apple_gfx_cursor_move(void) ""
+apple_gfx_common_init(const char *device_name, size_t mmio_size) "device: %s; MMIO size: %zu bytes"
+
+# apple-gfx-mmio.m
+apple_gfx_mmio_iosfc_read(uint64_t offset, uint64_t res) "offset=0x%"PRIx64" res=0x%"PRIx64
+apple_gfx_mmio_iosfc_write(uint64_t offset, uint64_t val) "offset=0x%"PRIx64" val=0x%"PRIx64
+apple_gfx_iosfc_map_memory(uint64_t phys, uint64_t len, uint32_t ro, void *va, void *e, void *f, void* va_result, int success) "phys=0x%"PRIx64" len=0x%"PRIx64" ro=%d va=%p e=%p f=%p -> *va=%p, success = %d"
+apple_gfx_iosfc_map_memory_new_region(size_t i, void *region, uint64_t start, uint64_t end) "index=%zu, region=%p, 0x%"PRIx64"-0x%"PRIx64
+apple_gfx_iosfc_unmap_memory(void *a, void *b, void *c, void *d, void *e, void *f) "a=%p b=%p c=%p d=%p e=%p f=%p"
+apple_gfx_iosfc_unmap_memory_region(uint64_t mem, size_t region_index, uint64_t map_count, void *region) "mapping @ 0x%"PRIx64" in region %zu, map count %"PRIu64", memory region %p"
+apple_gfx_iosfc_raise_irq(uint32_t vector) "vector=0x%x"
+
diff --git a/meson.build b/meson.build
index f7d45175212..5eab46f704f 100644
--- a/meson.build
+++ b/meson.build
@@ -769,6 +769,8 @@ socket = []
version_res = []
coref = []
iokit = []
+pvg = []
+metal = []
emulator_link_args = []
midl = not_found
widl = not_found
@@ -790,6 +792,8 @@ elif host_os == 'darwin'
coref = dependency('appleframeworks', modules: 'CoreFoundation')
iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
host_dsosuf = '.dylib'
+ pvg = dependency('appleframeworks', modules: 'ParavirtualizedGraphics')
+ metal = dependency('appleframeworks', modules: 'Metal')
elif host_os == 'sunos'
socket = [cc.find_library('socket'),
cc.find_library('nsl'),
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 03/15] hw/display/apple-gfx: Adds PCI implementation
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 01/15] ui & main loop: Redesign of system-specific main thread event handling Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 02/15] hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 04/15] hw/display/apple-gfx: Adds configurable mode list Phil Dennis-Jordan
` (11 subsequent siblings)
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv
This change wires up the PCI variant of the paravirtualised
graphics device, mainly useful for x86-64 macOS guests, implemented
by macOS's ParavirtualizedGraphics.framework. It builds on code
shared with the vmapple/mmio variant of the PVG device.
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---
v4:
* Threading improvements analogous to those in common apple-gfx code
and mmio device variant.
* Addressed some smaller issues raised in code review.
v5:
* Minor error handling improvement.
hw/display/Kconfig | 4 +
hw/display/apple-gfx-pci.m | 149 +++++++++++++++++++++++++++++++++++++
hw/display/meson.build | 1 +
3 files changed, 154 insertions(+)
create mode 100644 hw/display/apple-gfx-pci.m
diff --git a/hw/display/Kconfig b/hw/display/Kconfig
index 6a9b7b19ada..2b53dfd7d26 100644
--- a/hw/display/Kconfig
+++ b/hw/display/Kconfig
@@ -149,3 +149,7 @@ config MAC_PVG_MMIO
bool
depends on MAC_PVG && AARCH64
+config MAC_PVG_PCI
+ bool
+ depends on MAC_PVG && PCI
+ default y if PCI_DEVICES
diff --git a/hw/display/apple-gfx-pci.m b/hw/display/apple-gfx-pci.m
new file mode 100644
index 00000000000..870d0c41e66
--- /dev/null
+++ b/hw/display/apple-gfx-pci.m
@@ -0,0 +1,149 @@
+/*
+ * QEMU Apple ParavirtualizedGraphics.framework device, PCI variant
+ *
+ * Copyright © 2023-2024 Phil Dennis-Jordan
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * ParavirtualizedGraphics.framework is a set of libraries that macOS provides
+ * which implements 3d graphics passthrough to the host as well as a
+ * proprietary guest communication channel to drive it. This device model
+ * implements support to drive that library from within QEMU as a PCI device
+ * aimed primarily at x86-64 macOS VMs.
+ */
+
+#include "apple-gfx.h"
+#include "hw/pci/pci_device.h"
+#include "hw/pci/msi.h"
+#include "qapi/error.h"
+#include "trace.h"
+#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
+
+OBJECT_DECLARE_SIMPLE_TYPE(AppleGFXPCIState, APPLE_GFX_PCI)
+
+struct AppleGFXPCIState {
+ PCIDevice parent_obj;
+
+ AppleGFXState common;
+};
+
+static const char* apple_gfx_pci_option_rom_path = NULL;
+
+static void apple_gfx_init_option_rom_path(void)
+{
+ NSURL *option_rom_url = PGCopyOptionROMURL();
+ const char *option_rom_path = option_rom_url.fileSystemRepresentation;
+ apple_gfx_pci_option_rom_path = g_strdup(option_rom_path);
+ [option_rom_url release];
+}
+
+static void apple_gfx_pci_init(Object *obj)
+{
+ AppleGFXPCIState *s = APPLE_GFX_PCI(obj);
+
+ if (!apple_gfx_pci_option_rom_path) {
+ /* The following is done on device not class init to avoid running
+ * ObjC code before fork() in -daemonize mode. */
+ PCIDeviceClass *pci = PCI_DEVICE_CLASS(object_get_class(obj));
+ apple_gfx_init_option_rom_path();
+ pci->romfile = apple_gfx_pci_option_rom_path;
+ }
+
+ apple_gfx_common_init(obj, &s->common, TYPE_APPLE_GFX_PCI);
+}
+
+typedef struct AppleGFXPCIInterruptJob {
+ PCIDevice *device;
+ uint32_t vector;
+} AppleGFXPCIInterruptJob;
+
+static void apple_gfx_pci_raise_interrupt(void *opaque)
+{
+ AppleGFXPCIInterruptJob *job = opaque;
+
+ if (msi_enabled(job->device)) {
+ msi_notify(job->device, job->vector);
+ }
+ g_free(job);
+}
+
+static void apple_gfx_pci_interrupt(PCIDevice *dev, AppleGFXPCIState *s,
+ uint32_t vector)
+{
+ AppleGFXPCIInterruptJob *job;
+
+ trace_apple_gfx_raise_irq(vector);
+ job = g_malloc0(sizeof(*job));
+ job->device = dev;
+ job->vector = vector;
+ aio_bh_schedule_oneshot(qemu_get_aio_context(),
+ apple_gfx_pci_raise_interrupt, job);
+}
+
+static void apple_gfx_pci_realize(PCIDevice *dev, Error **errp)
+{
+ AppleGFXPCIState *s = APPLE_GFX_PCI(dev);
+ int ret;
+
+ pci_register_bar(dev, PG_PCI_BAR_MMIO,
+ PCI_BASE_ADDRESS_SPACE_MEMORY, &s->common.iomem_gfx);
+
+ ret = msi_init(dev, 0x0 /* config offset; 0 = find space */,
+ PG_PCI_MAX_MSI_VECTORS, true /* msi64bit */,
+ false /*msi_per_vector_mask*/, errp);
+ if (ret != 0) {
+ return;
+ }
+
+ @autoreleasepool {
+ PGDeviceDescriptor *desc = [PGDeviceDescriptor new];
+ desc.raiseInterrupt = ^(uint32_t vector) {
+ apple_gfx_pci_interrupt(dev, s, vector);
+ };
+
+ apple_gfx_common_realize(&s->common, desc, errp);
+ [desc release];
+ desc = nil;
+ }
+}
+
+static void apple_gfx_pci_reset(Object *obj, ResetType type)
+{
+ AppleGFXPCIState *s = APPLE_GFX_PCI(obj);
+ [s->common.pgdev reset];
+}
+
+static void apple_gfx_pci_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *pci = PCI_DEVICE_CLASS(klass);
+ ResettableClass *rc = RESETTABLE_CLASS(klass);
+
+ rc->phases.hold = apple_gfx_pci_reset;
+ dc->desc = "macOS Paravirtualized Graphics PCI Display Controller";
+ dc->hotpluggable = false;
+ set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
+
+ pci->vendor_id = PG_PCI_VENDOR_ID;
+ pci->device_id = PG_PCI_DEVICE_ID;
+ pci->class_id = PCI_CLASS_DISPLAY_OTHER;
+ pci->realize = apple_gfx_pci_realize;
+
+ // TODO: Property for setting mode list
+}
+
+static TypeInfo apple_gfx_pci_types[] = {
+ {
+ .name = TYPE_APPLE_GFX_PCI,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(AppleGFXPCIState),
+ .class_init = apple_gfx_pci_class_init,
+ .instance_init = apple_gfx_pci_init,
+ .interfaces = (InterfaceInfo[]) {
+ { INTERFACE_PCIE_DEVICE },
+ { },
+ },
+ }
+};
+DEFINE_TYPES(apple_gfx_pci_types)
+
diff --git a/hw/display/meson.build b/hw/display/meson.build
index 619e642905a..78e1c41ea0a 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -65,6 +65,7 @@ system_ss.add(when: 'CONFIG_MAC_PVG', if_true: [files('apple-gfx.m'), pv
if cpu == 'aarch64'
system_ss.add(when: 'CONFIG_MAC_PVG_MMIO', if_true: [files('apple-gfx-mmio.m'), pvg, metal])
endif
+system_ss.add(when: 'CONFIG_MAC_PVG_PCI', if_true: [files('apple-gfx-pci.m'), pvg, metal])
if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
virtio_gpu_ss = ss.source_set()
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 04/15] hw/display/apple-gfx: Adds configurable mode list
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (2 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 03/15] hw/display/apple-gfx: Adds PCI implementation Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 05/15] MAINTAINERS: Add myself as maintainer for apple-gfx, reviewer for HVF Phil Dennis-Jordan
` (10 subsequent siblings)
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv
This change adds a property 'display_modes' on the graphics device
which permits specifying a list of display modes. (screen resolution
and refresh rate)
The property is an array of a custom type to make the syntax slightly
less awkward to use, for example:
-device '{"driver":"apple-gfx-pci", "display-modes":["1920x1080@60", "3840x2160@60"]}'
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---
v4:
* Switched to the native array property type, which recently gained
command line support.
* The property has also been added to the -mmio variant.
* Tidied up the code a little.
v5:
* Better error handling and buffer management in property parsing and
output.
hw/display/apple-gfx-mmio.m | 8 +++
hw/display/apple-gfx-pci.m | 9 ++-
hw/display/apple-gfx.h | 12 ++++
hw/display/apple-gfx.m | 121 ++++++++++++++++++++++++++++++++----
hw/display/trace-events | 2 +
5 files changed, 139 insertions(+), 13 deletions(-)
diff --git a/hw/display/apple-gfx-mmio.m b/hw/display/apple-gfx-mmio.m
index b0c5669a344..a801c5fa722 100644
--- a/hw/display/apple-gfx-mmio.m
+++ b/hw/display/apple-gfx-mmio.m
@@ -364,6 +364,12 @@ static void apple_gfx_mmio_reset(Object *obj, ResetType type)
[s->common.pgdev reset];
}
+static Property apple_gfx_mmio_properties[] = {
+ DEFINE_PROP_ARRAY("display-modes", AppleGFXMMIOState,
+ common.num_display_modes, common.display_modes,
+ qdev_prop_display_mode, AppleGFXDisplayMode),
+ DEFINE_PROP_END_OF_LIST(),
+};
static void apple_gfx_mmio_class_init(ObjectClass *klass, void *data)
{
@@ -373,6 +379,8 @@ static void apple_gfx_mmio_class_init(ObjectClass *klass, void *data)
rc->phases.hold = apple_gfx_mmio_reset;
dc->hotpluggable = false;
dc->realize = apple_gfx_mmio_realize;
+
+ device_class_set_props(dc, apple_gfx_mmio_properties);
}
static TypeInfo apple_gfx_mmio_types[] = {
diff --git a/hw/display/apple-gfx-pci.m b/hw/display/apple-gfx-pci.m
index 870d0c41e66..e2fa2567c99 100644
--- a/hw/display/apple-gfx-pci.m
+++ b/hw/display/apple-gfx-pci.m
@@ -113,6 +113,13 @@ static void apple_gfx_pci_reset(Object *obj, ResetType type)
[s->common.pgdev reset];
}
+static Property apple_gfx_pci_properties[] = {
+ DEFINE_PROP_ARRAY("display-modes", AppleGFXPCIState,
+ common.num_display_modes, common.display_modes,
+ qdev_prop_display_mode, AppleGFXDisplayMode),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
static void apple_gfx_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
@@ -129,7 +136,7 @@ static void apple_gfx_pci_class_init(ObjectClass *klass, void *data)
pci->class_id = PCI_CLASS_DISPLAY_OTHER;
pci->realize = apple_gfx_pci_realize;
- // TODO: Property for setting mode list
+ device_class_set_props(dc, apple_gfx_pci_properties);
}
static TypeInfo apple_gfx_pci_types[] = {
diff --git a/hw/display/apple-gfx.h b/hw/display/apple-gfx.h
index ef34e8160c8..e9fef09e37e 100644
--- a/hw/display/apple-gfx.h
+++ b/hw/display/apple-gfx.h
@@ -16,6 +16,7 @@
#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
#include "qemu/typedefs.h"
#include "exec/memory.h"
+#include "hw/qdev-properties.h"
#include "ui/surface.h"
@class PGDeviceDescriptor;
@@ -27,6 +28,7 @@
typedef QTAILQ_HEAD(, PGTask_s) PGTaskList;
+struct AppleGFXDisplayMode;
typedef struct AppleGFXState {
/* Initialised on init/realize() */
MemoryRegion iomem_gfx;
@@ -36,6 +38,8 @@ typedef struct AppleGFXState {
id<MTLDevice> mtl;
id<MTLCommandQueue> mtl_queue;
dispatch_queue_t render_queue;
+ struct AppleGFXDisplayMode *display_modes;
+ uint32_t num_display_modes;
/*
* QemuMutex & QemuConds for awaiting completion of PVG memory-mapping and
* reading requests after submitting them to run in the AIO context.
@@ -66,6 +70,12 @@ typedef struct AppleGFXState {
id<MTLTexture> texture;
} AppleGFXState;
+typedef struct AppleGFXDisplayMode {
+ uint16_t width_px;
+ uint16_t height_px;
+ uint16_t refresh_rate_hz;
+} AppleGFXDisplayMode;
+
void apple_gfx_common_init(Object *obj, AppleGFXState *s, const char* obj_name);
void apple_gfx_common_realize(AppleGFXState *s, PGDeviceDescriptor *desc,
Error **errp);
@@ -75,5 +85,7 @@ uintptr_t apple_gfx_host_address_for_gpa_range(uint64_t guest_physical,
void apple_gfx_await_bh_job(AppleGFXState *s, QemuCond *job_cond,
bool *job_done_flag);
+extern const PropertyInfo qdev_prop_display_mode;
+
#endif
diff --git a/hw/display/apple-gfx.m b/hw/display/apple-gfx.m
index 101b38e8a6e..2e264e5561f 100644
--- a/hw/display/apple-gfx.m
+++ b/hw/display/apple-gfx.m
@@ -31,9 +31,10 @@
#include "sysemu/dma.h"
#include "ui/console.h"
-static const PGDisplayCoord_t apple_gfx_modes[] = {
- { .x = 1440, .y = 1080 },
- { .x = 1280, .y = 1024 },
+static const AppleGFXDisplayMode apple_gfx_default_modes[] = {
+ { 1920, 1080, 60 },
+ { 1440, 1080, 60 },
+ { 1280, 1024, 60 },
};
/* This implements a type defined in <ParavirtualizedGraphics/PGDevice.h>
@@ -320,7 +321,6 @@ static void set_mode(AppleGFXState *s, uint32_t width, uint32_t height)
static void create_fb(AppleGFXState *s)
{
s->con = graphic_console_init(NULL, 0, &apple_gfx_fb_ops, s);
- set_mode(s, 1440, 1080);
s->cursor_show = true;
}
@@ -686,20 +686,25 @@ static void apple_gfx_register_task_mapping_handlers(AppleGFXState *s,
return disp_desc;
}
-static NSArray<PGDisplayMode*>* apple_gfx_prepare_display_mode_array(void)
+static NSArray<PGDisplayMode*>* apple_gfx_create_display_mode_array(
+ const AppleGFXDisplayMode display_modes[], uint32_t display_mode_count)
{
- PGDisplayMode *modes[ARRAY_SIZE(apple_gfx_modes)];
+ PGDisplayMode **modes = alloca(sizeof(modes[0]) * display_mode_count);
NSArray<PGDisplayMode*>* mode_array = nil;
- int i;
+ uint32_t i;
- for (i = 0; i < ARRAY_SIZE(apple_gfx_modes); i++) {
+ for (i = 0; i < display_mode_count; i++) {
+ const AppleGFXDisplayMode *mode = &display_modes[i];
+ trace_apple_gfx_display_mode(i, mode->width_px, mode->height_px);
+ PGDisplayCoord_t mode_size = { mode->width_px, mode->height_px };
modes[i] =
- [[PGDisplayMode alloc] initWithSizeInPixels:apple_gfx_modes[i] refreshRateInHz:60.];
+ [[PGDisplayMode alloc] initWithSizeInPixels:mode_size
+ refreshRateInHz:mode->refresh_rate_hz];
}
- mode_array = [NSArray arrayWithObjects:modes count:ARRAY_SIZE(apple_gfx_modes)];
+ mode_array = [NSArray arrayWithObjects:modes count:display_mode_count];
- for (i = 0; i < ARRAY_SIZE(apple_gfx_modes); i++) {
+ for (i = 0; i < display_mode_count; i++) {
[modes[i] release];
modes[i] = nil;
}
@@ -737,6 +742,8 @@ void apple_gfx_common_realize(AppleGFXState *s, PGDeviceDescriptor *desc,
Error **errp)
{
PGDisplayDescriptor *disp_desc = nil;
+ const AppleGFXDisplayMode *display_modes = apple_gfx_default_modes;
+ int num_display_modes = ARRAY_SIZE(apple_gfx_default_modes);
if (apple_gfx_mig_blocker == NULL) {
error_setg(&apple_gfx_mig_blocker,
@@ -763,7 +770,14 @@ void apple_gfx_common_realize(AppleGFXState *s, PGDeviceDescriptor *desc,
s->pgdisp = [s->pgdev newDisplayWithDescriptor:disp_desc
port:0 serialNum:1234];
[disp_desc release];
- s->pgdisp.modeList = apple_gfx_prepare_display_mode_array();
+
+ if (s->display_modes != NULL && s->num_display_modes > 0) {
+ trace_apple_gfx_common_realize_modes_property(s->num_display_modes);
+ display_modes = s->display_modes;
+ num_display_modes = s->num_display_modes;
+ }
+ s->pgdisp.modeList =
+ apple_gfx_create_display_mode_array(display_modes, num_display_modes);
create_fb(s);
@@ -771,3 +785,86 @@ void apple_gfx_common_realize(AppleGFXState *s, PGDeviceDescriptor *desc,
qemu_cond_init(&s->task_map_job_cond);
qemu_cond_init(&s->mem_read_job_cond);
}
+
+static void apple_gfx_get_display_mode(Object *obj, Visitor *v,
+ const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ AppleGFXDisplayMode *mode = object_field_prop_ptr(obj, prop);
+ /* 3 uint16s (max 5 digits) + 2 separator characters + nul. */
+ char buffer[5 * 3 + 2 + 1];
+ char *pos = buffer;
+
+ int rc = snprintf(buffer, sizeof(buffer),
+ "%"PRIu16"x%"PRIu16"@%"PRIu16,
+ mode->width_px, mode->height_px,
+ mode->refresh_rate_hz);
+ assert(rc < sizeof(buffer));
+
+ visit_type_str(v, name, &pos, errp);
+}
+
+static void apple_gfx_set_display_mode(Object *obj, Visitor *v,
+ const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ AppleGFXDisplayMode *mode = object_field_prop_ptr(obj, prop);
+ Error *local_err = NULL;
+ const char *endptr;
+ g_autofree char *str = NULL;
+ int ret;
+ int val;
+
+ visit_type_str(v, name, &str, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ endptr = str;
+
+ ret = qemu_strtoi(endptr, &endptr, 10, &val);
+ if (ret || val > UINT16_MAX || val <= 0) {
+ error_setg(errp, "width in '%s' must be a decimal integer number "
+ "of pixels in the range 1..65535", name);
+ return;
+ }
+ mode->width_px = val;
+ if (*endptr != 'x') {
+ goto separator_error;
+ }
+
+ ret = qemu_strtoi(endptr + 1, &endptr, 10, &val);
+ if (ret || val > UINT16_MAX || val <= 0) {
+ error_setg(errp, "height in '%s' must be a decimal integer number "
+ "of pixels in the range 1..65535", name);
+ return;
+ }
+ mode->height_px = val;
+ if (*endptr != '@') {
+ goto separator_error;
+ }
+
+ ret = qemu_strtoi(endptr + 1, &endptr, 10, &val);
+ if (ret || val > UINT16_MAX || val <= 0) {
+ error_setg(errp, "refresh rate in '%s'"
+ " must be a positive decimal integer (Hertz)", name);
+ }
+ mode->refresh_rate_hz = val;
+ return;
+
+separator_error:
+ error_setg(errp, "Each display mode takes the format "
+ "'<width>x<height>@<rate>'");
+}
+
+const PropertyInfo qdev_prop_display_mode = {
+ .name = "display_mode",
+ .description =
+ "Display mode in pixels and Hertz, as <width>x<height>@<refresh-rate> "
+ "Example: 3840x2160@60",
+ .get = apple_gfx_get_display_mode,
+ .set = apple_gfx_set_display_mode,
+};
diff --git a/hw/display/trace-events b/hw/display/trace-events
index d63fba6d094..0e223075375 100644
--- a/hw/display/trace-events
+++ b/hw/display/trace-events
@@ -209,6 +209,8 @@ apple_gfx_cursor_set(uint32_t bpp, uint64_t width, uint64_t height) "bpp=%d widt
apple_gfx_cursor_show(uint32_t show) "show=%d"
apple_gfx_cursor_move(void) ""
apple_gfx_common_init(const char *device_name, size_t mmio_size) "device: %s; MMIO size: %zu bytes"
+apple_gfx_common_realize_modes_property(uint32_t num_modes) "using %u modes supplied by 'display-modes' device property"
+apple_gfx_display_mode(uint32_t mode_idx, uint16_t width_px, uint16_t height_px) "mode %2"PRIu32": %4"PRIu16"x%4"PRIu16
# apple-gfx-mmio.m
apple_gfx_mmio_iosfc_read(uint64_t offset, uint64_t res) "offset=0x%"PRIx64" res=0x%"PRIx64
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 05/15] MAINTAINERS: Add myself as maintainer for apple-gfx, reviewer for HVF
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (3 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 04/15] hw/display/apple-gfx: Adds configurable mode list Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 06/15] hw: Add vmapple subdir Phil Dennis-Jordan
` (9 subsequent siblings)
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv
I'm happy to take responsibility for the macOS PV graphics code. As
HVF patches don't seem to get much attention at the moment, I'm also
adding myself as designated reviewer for HVF and x86 HVF to try and
improve that.
I anticipate that the resulting workload should be covered by the
funding I'm receiving for improving Qemu in combination with macOS. As
of right now this runs out at the end of 2024; I expect the workload on
apple-gfx should be relatively minor and manageable in my spare time
beyond that. I may have to remove myself from more general HVF duties
once the contract runs out if it's more than I can manage.
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---
MAINTAINERS | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index f48d9142b8a..d95b9c9e53d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -505,6 +505,7 @@ F: target/arm/hvf/
X86 HVF CPUs
M: Cameron Esfahani <dirty@apple.com>
M: Roman Bolshakov <rbolshakov@ddn.com>
+R: Phil Dennis-Jordan <phil@philjordan.eu>
W: https://wiki.qemu.org/Features/HVF
S: Maintained
F: target/i386/hvf/
@@ -512,6 +513,7 @@ F: target/i386/hvf/
HVF
M: Cameron Esfahani <dirty@apple.com>
M: Roman Bolshakov <rbolshakov@ddn.com>
+R: Phil Dennis-Jordan <phil@philjordan.eu>
W: https://wiki.qemu.org/Features/HVF
S: Maintained
F: accel/hvf/
@@ -2581,6 +2583,11 @@ F: hw/display/edid*
F: include/hw/display/edid.h
F: qemu-edid.c
+macOS PV Graphics (apple-gfx)
+M: Phil Dennis-Jordan <phil@philjordan.eu>
+S: Maintained
+F: hw/display/apple-gfx*
+
PIIX4 South Bridge (i82371AB)
M: Hervé Poussineau <hpoussin@reactos.org>
M: Philippe Mathieu-Daudé <philmd@linaro.org>
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 06/15] hw: Add vmapple subdir
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (4 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 05/15] MAINTAINERS: Add myself as maintainer for apple-gfx, reviewer for HVF Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 07/15] hw/misc/pvpanic: Add MMIO interface Phil Dennis-Jordan
` (8 subsequent siblings)
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv,
Alexander Graf
From: Alexander Graf <graf@amazon.com>
We will introduce a number of devices that are specific to the vmapple
target machine. To keep them all tidily together, let's put them into
a single target directory.
Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
MAINTAINERS | 7 +++++++
hw/Kconfig | 1 +
hw/meson.build | 1 +
hw/vmapple/Kconfig | 1 +
hw/vmapple/meson.build | 0
hw/vmapple/trace-events | 2 ++
hw/vmapple/trace.h | 1 +
meson.build | 1 +
8 files changed, 14 insertions(+)
create mode 100644 hw/vmapple/Kconfig
create mode 100644 hw/vmapple/meson.build
create mode 100644 hw/vmapple/trace-events
create mode 100644 hw/vmapple/trace.h
diff --git a/MAINTAINERS b/MAINTAINERS
index d95b9c9e53d..0437568973a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2734,6 +2734,13 @@ F: hw/hyperv/hv-balloon*.h
F: include/hw/hyperv/dynmem-proto.h
F: include/hw/hyperv/hv-balloon.h
+VMapple
+M: Alexander Graf <agraf@csgraf.de>
+R: Phil Dennis-Jordan <phil@philjordan.eu>
+S: Maintained
+F: hw/vmapple/*
+F: include/hw/vmapple/*
+
Subsystems
----------
Overall Audio backends
diff --git a/hw/Kconfig b/hw/Kconfig
index 1b4e9bb07f7..2871784cfdc 100644
--- a/hw/Kconfig
+++ b/hw/Kconfig
@@ -41,6 +41,7 @@ source ufs/Kconfig
source usb/Kconfig
source virtio/Kconfig
source vfio/Kconfig
+source vmapple/Kconfig
source xen/Kconfig
source watchdog/Kconfig
diff --git a/hw/meson.build b/hw/meson.build
index b827c82c5d7..9c4f6d0d636 100644
--- a/hw/meson.build
+++ b/hw/meson.build
@@ -39,6 +39,7 @@ subdir('ufs')
subdir('usb')
subdir('vfio')
subdir('virtio')
+subdir('vmapple')
subdir('watchdog')
subdir('xen')
subdir('xenpv')
diff --git a/hw/vmapple/Kconfig b/hw/vmapple/Kconfig
new file mode 100644
index 00000000000..8b137891791
--- /dev/null
+++ b/hw/vmapple/Kconfig
@@ -0,0 +1 @@
+
diff --git a/hw/vmapple/meson.build b/hw/vmapple/meson.build
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/hw/vmapple/trace-events b/hw/vmapple/trace-events
new file mode 100644
index 00000000000..9ccc5790487
--- /dev/null
+++ b/hw/vmapple/trace-events
@@ -0,0 +1,2 @@
+# See docs/devel/tracing.rst for syntax documentation.
+
diff --git a/hw/vmapple/trace.h b/hw/vmapple/trace.h
new file mode 100644
index 00000000000..572adbefe04
--- /dev/null
+++ b/hw/vmapple/trace.h
@@ -0,0 +1 @@
+#include "trace/trace-hw_vmapple.h"
diff --git a/meson.build b/meson.build
index 5eab46f704f..3b9a0188d4c 100644
--- a/meson.build
+++ b/meson.build
@@ -3492,6 +3492,7 @@ if have_system
'hw/usb',
'hw/vfio',
'hw/virtio',
+ 'hw/vmapple',
'hw/watchdog',
'hw/xen',
'hw/gpio',
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 07/15] hw/misc/pvpanic: Add MMIO interface
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (5 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 06/15] hw: Add vmapple subdir Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 08/15] hvf: arm: Ignore writes to CNTP_CTL_EL0 Phil Dennis-Jordan
` (7 subsequent siblings)
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv,
Alexander Graf
From: Alexander Graf <graf@amazon.com>
In addition to the ISA and PCI variants of pvpanic, let's add an MMIO
platform device that we can use in embedded arm environments.
Signed-off-by: Alexander Graf <graf@amazon.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
v3:
* Rebased on upstream, updated a header path
hw/misc/Kconfig | 4 +++
hw/misc/meson.build | 1 +
hw/misc/pvpanic-mmio.c | 61 +++++++++++++++++++++++++++++++++++++++
include/hw/misc/pvpanic.h | 1 +
4 files changed, 67 insertions(+)
create mode 100644 hw/misc/pvpanic-mmio.c
diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig
index 1f1baa5dde9..5a6c1603b60 100644
--- a/hw/misc/Kconfig
+++ b/hw/misc/Kconfig
@@ -145,6 +145,10 @@ config PVPANIC_ISA
depends on ISA_BUS
select PVPANIC_COMMON
+config PVPANIC_MMIO
+ bool
+ select PVPANIC_COMMON
+
config AUX
bool
select I2C
diff --git a/hw/misc/meson.build b/hw/misc/meson.build
index d02d96e403b..4de4db0a600 100644
--- a/hw/misc/meson.build
+++ b/hw/misc/meson.build
@@ -122,6 +122,7 @@ system_ss.add(when: 'CONFIG_ARMSSE_MHU', if_true: files('armsse-mhu.c'))
system_ss.add(when: 'CONFIG_PVPANIC_ISA', if_true: files('pvpanic-isa.c'))
system_ss.add(when: 'CONFIG_PVPANIC_PCI', if_true: files('pvpanic-pci.c'))
+system_ss.add(when: 'CONFIG_PVPANIC_MMIO', if_true: files('pvpanic-mmio.c'))
system_ss.add(when: 'CONFIG_AUX', if_true: files('auxbus.c'))
system_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files(
'aspeed_hace.c',
diff --git a/hw/misc/pvpanic-mmio.c b/hw/misc/pvpanic-mmio.c
new file mode 100644
index 00000000000..56738efee53
--- /dev/null
+++ b/hw/misc/pvpanic-mmio.c
@@ -0,0 +1,61 @@
+/*
+ * QEMU simulated pvpanic device (MMIO frontend)
+ *
+ * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+
+#include "hw/qdev-properties.h"
+#include "hw/misc/pvpanic.h"
+#include "hw/sysbus.h"
+#include "standard-headers/misc/pvpanic.h"
+
+OBJECT_DECLARE_SIMPLE_TYPE(PVPanicMMIOState, PVPANIC_MMIO_DEVICE)
+
+#define PVPANIC_MMIO_SIZE 0x2
+
+struct PVPanicMMIOState {
+ SysBusDevice parent_obj;
+
+ PVPanicState pvpanic;
+};
+
+static void pvpanic_mmio_initfn(Object *obj)
+{
+ PVPanicMMIOState *s = PVPANIC_MMIO_DEVICE(obj);
+
+ pvpanic_setup_io(&s->pvpanic, DEVICE(s), PVPANIC_MMIO_SIZE);
+ sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->pvpanic.mr);
+}
+
+static Property pvpanic_mmio_properties[] = {
+ DEFINE_PROP_UINT8("events", PVPanicMMIOState, pvpanic.events,
+ PVPANIC_PANICKED | PVPANIC_CRASH_LOADED),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void pvpanic_mmio_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ device_class_set_props(dc, pvpanic_mmio_properties);
+ set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+}
+
+static const TypeInfo pvpanic_mmio_info = {
+ .name = TYPE_PVPANIC_MMIO_DEVICE,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(PVPanicMMIOState),
+ .instance_init = pvpanic_mmio_initfn,
+ .class_init = pvpanic_mmio_class_init,
+};
+
+static void pvpanic_register_types(void)
+{
+ type_register_static(&pvpanic_mmio_info);
+}
+
+type_init(pvpanic_register_types)
diff --git a/include/hw/misc/pvpanic.h b/include/hw/misc/pvpanic.h
index 9a71a5ad0d7..049a94c1125 100644
--- a/include/hw/misc/pvpanic.h
+++ b/include/hw/misc/pvpanic.h
@@ -26,6 +26,7 @@
#define TYPE_PVPANIC_ISA_DEVICE "pvpanic"
#define TYPE_PVPANIC_PCI_DEVICE "pvpanic-pci"
+#define TYPE_PVPANIC_MMIO_DEVICE "pvpanic-mmio"
#define PVPANIC_IOPORT_PROP "ioport"
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 08/15] hvf: arm: Ignore writes to CNTP_CTL_EL0
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (6 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 07/15] hw/misc/pvpanic: Add MMIO interface Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 09/15] gpex: Allow more than 4 legacy IRQs Phil Dennis-Jordan
` (6 subsequent siblings)
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv,
Alexander Graf
From: Alexander Graf <graf@amazon.com>
MacOS unconditionally disables interrupts of the physical timer on boot
and then continues to use the virtual one. We don't really want to support
a full physical timer emulation, so let's just ignore those writes.
Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
target/arm/hvf/hvf.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c
index 6cea483d422..b45b764dfd0 100644
--- a/target/arm/hvf/hvf.c
+++ b/target/arm/hvf/hvf.c
@@ -11,6 +11,7 @@
#include "qemu/osdep.h"
#include "qemu/error-report.h"
+#include "qemu/log.h"
#include "sysemu/runstate.h"
#include "sysemu/hvf.h"
@@ -184,6 +185,7 @@ void hvf_arm_init_debug(void)
#define SYSREG_OSLSR_EL1 SYSREG(2, 0, 1, 1, 4)
#define SYSREG_OSDLR_EL1 SYSREG(2, 0, 1, 3, 4)
#define SYSREG_CNTPCT_EL0 SYSREG(3, 3, 14, 0, 1)
+#define SYSREG_CNTP_CTL_EL0 SYSREG(3, 3, 14, 2, 1)
#define SYSREG_PMCR_EL0 SYSREG(3, 3, 9, 12, 0)
#define SYSREG_PMUSERENR_EL0 SYSREG(3, 3, 9, 14, 0)
#define SYSREG_PMCNTENSET_EL0 SYSREG(3, 3, 9, 12, 1)
@@ -1620,6 +1622,13 @@ static int hvf_sysreg_write(CPUState *cpu, uint32_t reg, uint64_t val)
case SYSREG_OSLAR_EL1:
env->cp15.oslsr_el1 = val & 1;
return 0;
+ case SYSREG_CNTP_CTL_EL0:
+ /*
+ * Guests should not rely on the physical counter, but macOS emits
+ * disable writes to it. Let it do so, but ignore the requests.
+ */
+ qemu_log_mask(LOG_UNIMP, "Unsupported write to CNTP_CTL_EL0\n");
+ return 0;
case SYSREG_OSDLR_EL1:
/* Dummy register */
return 0;
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 09/15] gpex: Allow more than 4 legacy IRQs
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (7 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 08/15] hvf: arm: Ignore writes to CNTP_CTL_EL0 Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 10/15] hw/vmapple/aes: Introduce aes engine Phil Dennis-Jordan
` (5 subsequent siblings)
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv,
Alexander Graf
From: Alexander Graf <graf@amazon.com>
Some boards such as vmapple don't do real legacy PCI IRQ swizzling.
Instead, they just keep allocating more board IRQ lines for each new
legacy IRQ. Let's support that mode by giving instantiators a new
"nr_irqs" property they can use to support more than 4 legacy IRQ lines.
In this mode, GPEX will export more IRQ lines, one for each device.
Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
v4:
* Turned pair of IRQ arrays into array of structs.
* Simplified swizzling logic selection.
hw/arm/sbsa-ref.c | 2 +-
hw/arm/virt.c | 2 +-
hw/i386/microvm.c | 2 +-
hw/loongarch/virt.c | 2 +-
hw/mips/loongson3_virt.c | 2 +-
hw/openrisc/virt.c | 12 +++++------
hw/pci-host/gpex.c | 43 ++++++++++++++++++++++++++++++--------
hw/riscv/virt.c | 12 +++++------
hw/xtensa/virt.c | 2 +-
include/hw/pci-host/gpex.h | 7 +++----
10 files changed, 55 insertions(+), 31 deletions(-)
diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
index e3195d54497..7e7322486c2 100644
--- a/hw/arm/sbsa-ref.c
+++ b/hw/arm/sbsa-ref.c
@@ -673,7 +673,7 @@ static void create_pcie(SBSAMachineState *sms)
/* Map IO port space */
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, base_pio);
- for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ for (i = 0; i < PCI_NUM_PINS; i++) {
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i,
qdev_get_gpio_in(sms->gic, irq + i));
gpex_set_irq_num(GPEX_HOST(dev), i, irq + i);
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 8b2b991d978..bd3b17be2ea 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1547,7 +1547,7 @@ static void create_pcie(VirtMachineState *vms)
/* Map IO port space */
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, base_pio);
- for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ for (i = 0; i < PCI_NUM_PINS; i++) {
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i,
qdev_get_gpio_in(vms->gic, irq + i));
gpex_set_irq_num(GPEX_HOST(dev), i, irq + i);
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index 693099f2256..b3a348bee09 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -139,7 +139,7 @@ static void create_gpex(MicrovmMachineState *mms)
mms->gpex.mmio64.base, mmio64_alias);
}
- for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ for (i = 0; i < PCI_NUM_PINS; i++) {
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i,
x86ms->gsi[mms->gpex.irq + i]);
}
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
index 9a635d1d3d3..50056384994 100644
--- a/hw/loongarch/virt.c
+++ b/hw/loongarch/virt.c
@@ -741,7 +741,7 @@ static void virt_devices_init(DeviceState *pch_pic,
memory_region_add_subregion(get_system_memory(), VIRT_PCI_IO_BASE,
pio_alias);
- for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ for (i = 0; i < PCI_NUM_PINS; i++) {
sysbus_connect_irq(d, i,
qdev_get_gpio_in(pch_pic, 16 + i));
gpex_set_irq_num(GPEX_HOST(gpex_dev), i, 16 + i);
diff --git a/hw/mips/loongson3_virt.c b/hw/mips/loongson3_virt.c
index f3b6326cc59..884b5f23a99 100644
--- a/hw/mips/loongson3_virt.c
+++ b/hw/mips/loongson3_virt.c
@@ -458,7 +458,7 @@ static inline void loongson3_virt_devices_init(MachineState *machine,
virt_memmap[VIRT_PCIE_PIO].base, s->pio_alias);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, virt_memmap[VIRT_PCIE_PIO].base);
- for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ for (i = 0; i < PCI_NUM_PINS; i++) {
irq = qdev_get_gpio_in(pic, PCIE_IRQ_BASE + i);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq);
gpex_set_irq_num(GPEX_HOST(dev), i, PCIE_IRQ_BASE + i);
diff --git a/hw/openrisc/virt.c b/hw/openrisc/virt.c
index 47d2c9bd3c7..6f053bf48e0 100644
--- a/hw/openrisc/virt.c
+++ b/hw/openrisc/virt.c
@@ -318,7 +318,7 @@ static void create_pcie_irq_map(void *fdt, char *nodename, int irq_base,
{
int pin, dev;
uint32_t irq_map_stride = 0;
- uint32_t full_irq_map[GPEX_NUM_IRQS * GPEX_NUM_IRQS * 6] = {};
+ uint32_t full_irq_map[PCI_NUM_PINS * PCI_NUM_PINS * 6] = {};
uint32_t *irq_map = full_irq_map;
/*
@@ -330,11 +330,11 @@ static void create_pcie_irq_map(void *fdt, char *nodename, int irq_base,
* possible slot) seeing the interrupt-map-mask will allow the table
* to wrap to any number of devices.
*/
- for (dev = 0; dev < GPEX_NUM_IRQS; dev++) {
+ for (dev = 0; dev < PCI_NUM_PINS; dev++) {
int devfn = dev << 3;
- for (pin = 0; pin < GPEX_NUM_IRQS; pin++) {
- int irq_nr = irq_base + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS);
+ for (pin = 0; pin < PCI_NUM_PINS; pin++) {
+ int irq_nr = irq_base + ((pin + PCI_SLOT(devfn)) % PCI_NUM_PINS);
int i = 0;
/* Fill PCI address cells */
@@ -357,7 +357,7 @@ static void create_pcie_irq_map(void *fdt, char *nodename, int irq_base,
}
qemu_fdt_setprop(fdt, nodename, "interrupt-map", full_irq_map,
- GPEX_NUM_IRQS * GPEX_NUM_IRQS *
+ PCI_NUM_PINS * PCI_NUM_PINS *
irq_map_stride * sizeof(uint32_t));
qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask",
@@ -409,7 +409,7 @@ static void openrisc_virt_pcie_init(OR1KVirtState *state,
memory_region_add_subregion(get_system_memory(), pio_base, alias);
/* Connect IRQ lines. */
- for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ for (i = 0; i < PCI_NUM_PINS; i++) {
pcie_irq = get_per_cpu_irq(cpus, num_cpus, irq_base + i);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, pcie_irq);
diff --git a/hw/pci-host/gpex.c b/hw/pci-host/gpex.c
index e9cf455bf52..cd63aa2d3cf 100644
--- a/hw/pci-host/gpex.c
+++ b/hw/pci-host/gpex.c
@@ -32,6 +32,7 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/irq.h"
+#include "hw/pci/pci_bus.h"
#include "hw/pci-host/gpex.h"
#include "hw/qdev-properties.h"
#include "migration/vmstate.h"
@@ -41,20 +42,25 @@
* GPEX host
*/
+struct GPEXIrq {
+ qemu_irq irq;
+ int irq_num;
+};
+
static void gpex_set_irq(void *opaque, int irq_num, int level)
{
GPEXHost *s = opaque;
- qemu_set_irq(s->irq[irq_num], level);
+ qemu_set_irq(s->irq[irq_num].irq, level);
}
int gpex_set_irq_num(GPEXHost *s, int index, int gsi)
{
- if (index >= GPEX_NUM_IRQS) {
+ if (index >= s->num_irqs) {
return -EINVAL;
}
- s->irq_num[index] = gsi;
+ s->irq[index].irq_num = gsi;
return 0;
}
@@ -62,7 +68,7 @@ static PCIINTxRoute gpex_route_intx_pin_to_irq(void *opaque, int pin)
{
PCIINTxRoute route;
GPEXHost *s = opaque;
- int gsi = s->irq_num[pin];
+ int gsi = s->irq[pin].irq_num;
route.irq = gsi;
if (gsi < 0) {
@@ -74,6 +80,13 @@ static PCIINTxRoute gpex_route_intx_pin_to_irq(void *opaque, int pin)
return route;
}
+static int gpex_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin)
+{
+ PCIBus *bus = pci_device_root_bus(pci_dev);
+
+ return (PCI_SLOT(pci_dev->devfn) + pin) % bus->nirq;
+}
+
static void gpex_host_realize(DeviceState *dev, Error **errp)
{
PCIHostState *pci = PCI_HOST_BRIDGE(dev);
@@ -82,6 +95,8 @@ static void gpex_host_realize(DeviceState *dev, Error **errp)
PCIExpressHost *pex = PCIE_HOST_BRIDGE(dev);
int i;
+ s->irq = g_malloc0_n(s->num_irqs, sizeof(*s->irq));
+
pcie_host_mmcfg_init(pex, PCIE_MMCFG_SIZE_MAX);
sysbus_init_mmio(sbd, &pex->mmio);
@@ -128,19 +143,27 @@ static void gpex_host_realize(DeviceState *dev, Error **errp)
sysbus_init_mmio(sbd, &s->io_ioport);
}
- for (i = 0; i < GPEX_NUM_IRQS; i++) {
- sysbus_init_irq(sbd, &s->irq[i]);
- s->irq_num[i] = -1;
+ for (i = 0; i < s->num_irqs; i++) {
+ sysbus_init_irq(sbd, &s->irq[i].irq);
+ s->irq[i].irq_num = -1;
}
pci->bus = pci_register_root_bus(dev, "pcie.0", gpex_set_irq,
- pci_swizzle_map_irq_fn, s, &s->io_mmio,
- &s->io_ioport, 0, 4, TYPE_PCIE_BUS);
+ gpex_swizzle_map_irq_fn,
+ s, &s->io_mmio, &s->io_ioport, 0,
+ s->num_irqs, TYPE_PCIE_BUS);
pci_bus_set_route_irq_fn(pci->bus, gpex_route_intx_pin_to_irq);
qdev_realize(DEVICE(&s->gpex_root), BUS(pci->bus), &error_fatal);
}
+static void gpex_host_unrealize(DeviceState *dev)
+{
+ GPEXHost *s = GPEX_HOST(dev);
+
+ g_free(s->irq);
+}
+
static const char *gpex_host_root_bus_path(PCIHostState *host_bridge,
PCIBus *rootbus)
{
@@ -166,6 +189,7 @@ static Property gpex_host_properties[] = {
gpex_cfg.mmio64.base, 0),
DEFINE_PROP_SIZE(PCI_HOST_ABOVE_4G_MMIO_SIZE, GPEXHost,
gpex_cfg.mmio64.size, 0),
+ DEFINE_PROP_UINT8("num-irqs", GPEXHost, num_irqs, PCI_NUM_PINS),
DEFINE_PROP_END_OF_LIST(),
};
@@ -176,6 +200,7 @@ static void gpex_host_class_init(ObjectClass *klass, void *data)
hc->root_bus_path = gpex_host_root_bus_path;
dc->realize = gpex_host_realize;
+ dc->unrealize = gpex_host_unrealize;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->fw_name = "pci";
device_class_set_props(dc, gpex_host_properties);
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index ee3129f3b31..08832dc2359 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -167,7 +167,7 @@ static void create_pcie_irq_map(RISCVVirtState *s, void *fdt, char *nodename,
{
int pin, dev;
uint32_t irq_map_stride = 0;
- uint32_t full_irq_map[GPEX_NUM_IRQS * GPEX_NUM_IRQS *
+ uint32_t full_irq_map[PCI_NUM_PINS * PCI_NUM_PINS *
FDT_MAX_INT_MAP_WIDTH] = {};
uint32_t *irq_map = full_irq_map;
@@ -179,11 +179,11 @@ static void create_pcie_irq_map(RISCVVirtState *s, void *fdt, char *nodename,
* possible slot) seeing the interrupt-map-mask will allow the table
* to wrap to any number of devices.
*/
- for (dev = 0; dev < GPEX_NUM_IRQS; dev++) {
+ for (dev = 0; dev < PCI_NUM_PINS; dev++) {
int devfn = dev * 0x8;
- for (pin = 0; pin < GPEX_NUM_IRQS; pin++) {
- int irq_nr = PCIE_IRQ + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS);
+ for (pin = 0; pin < PCI_NUM_PINS; pin++) {
+ int irq_nr = PCIE_IRQ + ((pin + PCI_SLOT(devfn)) % PCI_NUM_PINS);
int i = 0;
/* Fill PCI address cells */
@@ -209,7 +209,7 @@ static void create_pcie_irq_map(RISCVVirtState *s, void *fdt, char *nodename,
}
qemu_fdt_setprop(fdt, nodename, "interrupt-map", full_irq_map,
- GPEX_NUM_IRQS * GPEX_NUM_IRQS *
+ PCI_NUM_PINS * PCI_NUM_PINS *
irq_map_stride * sizeof(uint32_t));
qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask",
@@ -1157,7 +1157,7 @@ static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem,
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, pio_base);
- for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ for (i = 0; i < PCI_NUM_PINS; i++) {
irq = qdev_get_gpio_in(irqchip, PCIE_IRQ + i);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq);
diff --git a/hw/xtensa/virt.c b/hw/xtensa/virt.c
index 5310a888613..8f5c2009d29 100644
--- a/hw/xtensa/virt.c
+++ b/hw/xtensa/virt.c
@@ -93,7 +93,7 @@ static void create_pcie(MachineState *ms, CPUXtensaState *env, int irq_base,
/* Connect IRQ lines. */
extints = xtensa_get_extints(env);
- for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ for (i = 0; i < PCI_NUM_PINS; i++) {
void *q = extints[irq_base + i];
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, q);
diff --git a/include/hw/pci-host/gpex.h b/include/hw/pci-host/gpex.h
index dce883573ba..84471533af0 100644
--- a/include/hw/pci-host/gpex.h
+++ b/include/hw/pci-host/gpex.h
@@ -32,8 +32,6 @@ OBJECT_DECLARE_SIMPLE_TYPE(GPEXHost, GPEX_HOST)
#define TYPE_GPEX_ROOT_DEVICE "gpex-root"
OBJECT_DECLARE_SIMPLE_TYPE(GPEXRootState, GPEX_ROOT_DEVICE)
-#define GPEX_NUM_IRQS 4
-
struct GPEXRootState {
/*< private >*/
PCIDevice parent_obj;
@@ -49,6 +47,7 @@ struct GPEXConfig {
PCIBus *bus;
};
+typedef struct GPEXIrq GPEXIrq;
struct GPEXHost {
/*< private >*/
PCIExpressHost parent_obj;
@@ -60,8 +59,8 @@ struct GPEXHost {
MemoryRegion io_mmio;
MemoryRegion io_ioport_window;
MemoryRegion io_mmio_window;
- qemu_irq irq[GPEX_NUM_IRQS];
- int irq_num[GPEX_NUM_IRQS];
+ GPEXIrq *irq;
+ uint8_t num_irqs;
bool allow_unmapped_accesses;
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 10/15] hw/vmapple/aes: Introduce aes engine
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (8 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 09/15] gpex: Allow more than 4 legacy IRQs Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 11/15] hw/vmapple/bdif: Introduce vmapple backdoor interface Phil Dennis-Jordan
` (4 subsequent siblings)
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv,
Alexander Graf
From: Alexander Graf <graf@amazon.com>
VMApple contains an "aes" engine device that it uses to encrypt and
decrypt its nvram. It has trivial hard coded keys it uses for that
purpose.
Add device emulation for this device model.
Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---
v3:
* Rebased on latest upstream and fixed minor breakages.
* Replaced legacy device reset method with Resettable method
v4:
* Improved logging of unimplemented functions and guest errors.
* Better adherence to naming and coding conventions.
* Cleaner error handling and recovery, including using g_autoptr
v5:
* More logging improvements
* Use xxx64_overflow() functions for hexdump buffer size calculations.
hw/vmapple/Kconfig | 2 +
hw/vmapple/aes.c | 578 +++++++++++++++++++++++++++++++++++
hw/vmapple/meson.build | 1 +
hw/vmapple/trace-events | 14 +
include/hw/vmapple/vmapple.h | 17 ++
include/qemu/cutils.h | 15 +
util/hexdump.c | 18 ++
7 files changed, 645 insertions(+)
create mode 100644 hw/vmapple/aes.c
create mode 100644 include/hw/vmapple/vmapple.h
diff --git a/hw/vmapple/Kconfig b/hw/vmapple/Kconfig
index 8b137891791..a73504d5999 100644
--- a/hw/vmapple/Kconfig
+++ b/hw/vmapple/Kconfig
@@ -1 +1,3 @@
+config VMAPPLE_AES
+ bool
diff --git a/hw/vmapple/aes.c b/hw/vmapple/aes.c
new file mode 100644
index 00000000000..2b4567b6a57
--- /dev/null
+++ b/hw/vmapple/aes.c
@@ -0,0 +1,578 @@
+/*
+ * QEMU Apple AES device emulation
+ *
+ * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "trace.h"
+#include "crypto/hash.h"
+#include "crypto/aes.h"
+#include "crypto/cipher.h"
+#include "hw/irq.h"
+#include "hw/sysbus.h"
+#include "hw/vmapple/vmapple.h"
+#include "migration/vmstate.h"
+#include "qemu/cutils.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "sysemu/dma.h"
+
+OBJECT_DECLARE_SIMPLE_TYPE(AESState, APPLE_AES)
+
+#define MAX_FIFO_SIZE 9
+
+#define CMD_KEY 0x1
+#define CMD_KEY_CONTEXT_SHIFT 27
+#define CMD_KEY_CONTEXT_MASK (0x1 << CMD_KEY_CONTEXT_SHIFT)
+#define CMD_KEY_SELECT_MAX_IDX 0x7
+#define CMD_KEY_SELECT_SHIFT 24
+#define CMD_KEY_SELECT_MASK (CMD_KEY_SELECT_MAX_IDX << CMD_KEY_SELECT_SHIFT)
+#define CMD_KEY_KEY_LEN_NUM 4u
+#define CMD_KEY_KEY_LEN_SHIFT 22
+#define CMD_KEY_KEY_LEN_MASK ((CMD_KEY_KEY_LEN_NUM - 1u) << CMD_KEY_KEY_LEN_SHIFT)
+#define CMD_KEY_ENCRYPT_SHIFT 20
+#define CMD_KEY_ENCRYPT_MASK (0x1 << CMD_KEY_ENCRYPT_SHIFT)
+#define CMD_KEY_BLOCK_MODE_SHIFT 16
+#define CMD_KEY_BLOCK_MODE_MASK (0x3 << CMD_KEY_BLOCK_MODE_SHIFT)
+#define CMD_IV 0x2
+#define CMD_IV_CONTEXT_SHIFT 26
+#define CMD_IV_CONTEXT_MASK (0x3 << CMD_KEY_CONTEXT_SHIFT)
+#define CMD_DSB 0x3
+#define CMD_SKG 0x4
+#define CMD_DATA 0x5
+#define CMD_DATA_KEY_CTX_SHIFT 27
+#define CMD_DATA_KEY_CTX_MASK (0x1 << CMD_DATA_KEY_CTX_SHIFT)
+#define CMD_DATA_IV_CTX_SHIFT 25
+#define CMD_DATA_IV_CTX_MASK (0x3 << CMD_DATA_IV_CTX_SHIFT)
+#define CMD_DATA_LEN_MASK 0xffffff
+#define CMD_STORE_IV 0x6
+#define CMD_STORE_IV_ADDR_MASK 0xffffff
+#define CMD_WRITE_REG 0x7
+#define CMD_FLAG 0x8
+#define CMD_FLAG_STOP_MASK BIT(26)
+#define CMD_FLAG_RAISE_IRQ_MASK BIT(27)
+#define CMD_FLAG_INFO_MASK 0xff
+#define CMD_MAX 0x10
+
+#define CMD_SHIFT 28
+
+#define REG_STATUS 0xc
+#define REG_STATUS_DMA_READ_RUNNING BIT(0)
+#define REG_STATUS_DMA_READ_PENDING BIT(1)
+#define REG_STATUS_DMA_WRITE_RUNNING BIT(2)
+#define REG_STATUS_DMA_WRITE_PENDING BIT(3)
+#define REG_STATUS_BUSY BIT(4)
+#define REG_STATUS_EXECUTING BIT(5)
+#define REG_STATUS_READY BIT(6)
+#define REG_STATUS_TEXT_DPA_SEEDED BIT(7)
+#define REG_STATUS_UNWRAP_DPA_SEEDED BIT(8)
+
+#define REG_IRQ_STATUS 0x18
+#define REG_IRQ_STATUS_INVALID_CMD BIT(2)
+#define REG_IRQ_STATUS_FLAG BIT(5)
+#define REG_IRQ_ENABLE 0x1c
+#define REG_WATERMARK 0x20
+#define REG_Q_STATUS 0x24
+#define REG_FLAG_INFO 0x30
+#define REG_FIFO 0x200
+
+static const uint32_t key_lens[CMD_KEY_KEY_LEN_NUM] = {
+ [0] = 16,
+ [1] = 24,
+ [2] = 32,
+ [3] = 64,
+};
+
+typedef struct Key {
+ uint32_t key_len;
+ uint8_t key[32];
+} Key;
+
+typedef struct IV {
+ uint32_t iv[4];
+} IV;
+
+static Key builtin_keys[CMD_KEY_SELECT_MAX_IDX + 1] = {
+ [1] = {
+ .key_len = 32,
+ .key = { 0x1 },
+ },
+ [2] = {
+ .key_len = 32,
+ .key = { 0x2 },
+ },
+ [3] = {
+ .key_len = 32,
+ .key = { 0x3 },
+ }
+};
+
+struct AESState {
+ SysBusDevice parent_obj;
+
+ qemu_irq irq;
+ MemoryRegion iomem1;
+ MemoryRegion iomem2;
+ AddressSpace *as;
+
+ uint32_t status;
+ uint32_t q_status;
+ uint32_t irq_status;
+ uint32_t irq_enable;
+ uint32_t watermark;
+ uint32_t flag_info;
+ uint32_t fifo[MAX_FIFO_SIZE];
+ uint32_t fifo_idx;
+ Key key[2];
+ IV iv[4];
+ bool is_encrypt;
+ QCryptoCipherMode block_mode;
+};
+
+static void aes_update_irq(AESState *s)
+{
+ qemu_set_irq(s->irq, !!(s->irq_status & s->irq_enable));
+}
+
+static uint64_t aes1_read(void *opaque, hwaddr offset, unsigned size)
+{
+ AESState *s = opaque;
+ uint64_t res = 0;
+
+ switch (offset) {
+ case REG_STATUS:
+ res = s->status;
+ break;
+ case REG_IRQ_STATUS:
+ res = s->irq_status;
+ break;
+ case REG_IRQ_ENABLE:
+ res = s->irq_enable;
+ break;
+ case REG_WATERMARK:
+ res = s->watermark;
+ break;
+ case REG_Q_STATUS:
+ res = s->q_status;
+ break;
+ case REG_FLAG_INFO:
+ res = s->flag_info;
+ break;
+
+ default:
+ qemu_log_mask(LOG_UNIMP, "%s: Unknown AES MMIO offset %" PRIx64 "\n",
+ __func__, offset);
+ break;
+ }
+
+ trace_aes_read(offset, res);
+
+ return res;
+}
+
+static void fifo_append(AESState *s, uint64_t val)
+{
+ if (s->fifo_idx == MAX_FIFO_SIZE) {
+ /* Exceeded the FIFO. Bail out */
+ return;
+ }
+
+ s->fifo[s->fifo_idx++] = val;
+}
+
+static bool has_payload(AESState *s, uint32_t elems)
+{
+ return s->fifo_idx >= (elems + 1);
+}
+
+static bool cmd_key(AESState *s)
+{
+ uint32_t cmd = s->fifo[0];
+ uint32_t key_select = (cmd & CMD_KEY_SELECT_MASK) >> CMD_KEY_SELECT_SHIFT;
+ uint32_t ctxt = (cmd & CMD_KEY_CONTEXT_MASK) >> CMD_KEY_CONTEXT_SHIFT;
+ uint32_t key_len;
+
+ switch ((cmd & CMD_KEY_BLOCK_MODE_MASK) >> CMD_KEY_BLOCK_MODE_SHIFT) {
+ case 0:
+ s->block_mode = QCRYPTO_CIPHER_MODE_ECB;
+ break;
+ case 1:
+ s->block_mode = QCRYPTO_CIPHER_MODE_CBC;
+ break;
+ default:
+ return false;
+ }
+
+ s->is_encrypt = cmd & CMD_KEY_ENCRYPT_MASK;
+ key_len = key_lens[((cmd & CMD_KEY_KEY_LEN_MASK) >> CMD_KEY_KEY_LEN_SHIFT)];
+
+ if (key_select) {
+ trace_aes_cmd_key_select_builtin(ctxt, key_select,
+ s->is_encrypt ? "en" : "de",
+ QCryptoCipherMode_str(s->block_mode));
+ s->key[ctxt] = builtin_keys[key_select];
+ } else {
+ trace_aes_cmd_key_select_new(ctxt, key_len,
+ s->is_encrypt ? "en" : "de",
+ QCryptoCipherMode_str(s->block_mode));
+ if (key_len > sizeof(s->key[ctxt].key)) {
+ return false;
+ }
+ if (!has_payload(s, key_len / sizeof(uint32_t))) {
+ /* wait for payload */
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: No payload\n", __func__);
+ return false;
+ }
+ memcpy(&s->key[ctxt].key, &s->fifo[1], key_len);
+ s->key[ctxt].key_len = key_len;
+ }
+
+ return true;
+}
+
+static bool cmd_iv(AESState *s)
+{
+ uint32_t cmd = s->fifo[0];
+ uint32_t ctxt = (cmd & CMD_IV_CONTEXT_MASK) >> CMD_IV_CONTEXT_SHIFT;
+
+ if (!has_payload(s, 4)) {
+ /* wait for payload */
+ return false;
+ }
+ memcpy(&s->iv[ctxt].iv, &s->fifo[1], sizeof(s->iv[ctxt].iv));
+ trace_aes_cmd_iv(ctxt, s->fifo[1], s->fifo[2], s->fifo[3], s->fifo[4]);
+
+ return true;
+}
+
+static void dump_data(const char *desc, const void *p, size_t len)
+{
+ static const size_t MAX_LEN = 0x1000;
+ char hex[MAX_LEN * 2 + 1] = "";
+
+ if (len > MAX_LEN) {
+ return;
+ }
+
+ qemu_hexdump_to_buffer(hex, sizeof(hex), p, len);
+ trace_aes_dump_data(desc, hex);
+}
+
+static bool cmd_data(AESState *s)
+{
+ uint32_t cmd = s->fifo[0];
+ uint32_t ctxt_iv = 0;
+ uint32_t ctxt_key = (cmd & CMD_DATA_KEY_CTX_MASK) >> CMD_DATA_KEY_CTX_SHIFT;
+ uint32_t len = cmd & CMD_DATA_LEN_MASK;
+ uint64_t src_addr = s->fifo[2];
+ uint64_t dst_addr = s->fifo[3];
+ QCryptoCipherAlgo alg;
+ g_autoptr(QCryptoCipher) cipher = NULL;
+ g_autoptr(GByteArray) src = NULL;
+ g_autoptr(GByteArray) dst = NULL;
+ MemTxResult r;
+
+ src_addr |= ((uint64_t)s->fifo[1] << 16) & 0xffff00000000ULL;
+ dst_addr |= ((uint64_t)s->fifo[1] << 32) & 0xffff00000000ULL;
+
+ trace_aes_cmd_data(ctxt_key, ctxt_iv, src_addr, dst_addr, len);
+
+ if (!has_payload(s, 3)) {
+ /* wait for payload */
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: No payload\n", __func__);
+ return false;
+ }
+
+ if (ctxt_key >= ARRAY_SIZE(s->key) ||
+ ctxt_iv >= ARRAY_SIZE(s->iv)) {
+ /* Invalid input */
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: Invalid key or iv\n", __func__);
+ return false;
+ }
+
+ src = g_byte_array_sized_new(len);
+ g_byte_array_set_size(src, len);
+ dst = g_byte_array_sized_new(len);
+ g_byte_array_set_size(dst, len);
+
+ r = dma_memory_read(s->as, src_addr, src->data, len, MEMTXATTRS_UNSPECIFIED);
+ if (r != MEMTX_OK) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: DMA read of %"PRIu32" bytes "
+ "from 0x%"PRIx64" failed. (r=%d)\n",
+ __func__, len, src_addr, r);
+ return false;
+ }
+
+ dump_data("cmd_data(): src_data=", src->data, len);
+
+ switch (s->key[ctxt_key].key_len) {
+ case 128 / 8:
+ alg = QCRYPTO_CIPHER_ALGO_AES_128;
+ break;
+ case 192 / 8:
+ alg = QCRYPTO_CIPHER_ALGO_AES_192;
+ break;
+ case 256 / 8:
+ alg = QCRYPTO_CIPHER_ALGO_AES_256;
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: Invalid key length\n", __func__);
+ return false;
+ }
+ cipher = qcrypto_cipher_new(alg, s->block_mode,
+ s->key[ctxt_key].key,
+ s->key[ctxt_key].key_len, NULL);
+ if (!cipher) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: Failed to create cipher object\n",
+ __func__);
+ return false;
+ }
+ if (s->block_mode != QCRYPTO_CIPHER_MODE_ECB) {
+ if (qcrypto_cipher_setiv(cipher, (void *)s->iv[ctxt_iv].iv,
+ sizeof(s->iv[ctxt_iv].iv), NULL) != 0) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: Failed to set IV\n", __func__);
+ return false;
+ }
+ }
+ if (s->is_encrypt) {
+ if (qcrypto_cipher_encrypt(cipher, src->data, dst->data, len, NULL) != 0) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: Encryption failed\n", __func__);
+ return false;
+ }
+ } else {
+ if (qcrypto_cipher_decrypt(cipher, src->data, dst->data, len, NULL) != 0) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: Decryption failed\n", __func__);
+ return false;
+ }
+ }
+
+ dump_data("cmd_data(): dst_data=", dst->data, len);
+ r = dma_memory_write(s->as, dst_addr, dst->data, len, MEMTXATTRS_UNSPECIFIED);
+ if (r != MEMTX_OK) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: DMA write of %"PRIu32" bytes "
+ "to 0x%"PRIx64" failed. (r=%d)\n",
+ __func__, len, src_addr, r);
+ return false;
+ }
+
+ return true;
+}
+
+static bool cmd_store_iv(AESState *s)
+{
+ uint32_t cmd = s->fifo[0];
+ uint32_t ctxt = (cmd & CMD_IV_CONTEXT_MASK) >> CMD_IV_CONTEXT_SHIFT;
+ uint64_t addr = s->fifo[1];
+
+ if (!has_payload(s, 1)) {
+ /* wait for payload */
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: No payload\n", __func__);
+ return false;
+ }
+
+ if (ctxt >= ARRAY_SIZE(s->iv)) {
+ /* Invalid context selected */
+ return false;
+ }
+
+ addr |= ((uint64_t)cmd << 32) & 0xff00000000ULL;
+ cpu_physical_memory_write(addr, &s->iv[ctxt].iv, sizeof(s->iv[ctxt].iv));
+
+ trace_aes_cmd_store_iv(ctxt, addr, s->iv[ctxt].iv[0], s->iv[ctxt].iv[1],
+ s->iv[ctxt].iv[2], s->iv[ctxt].iv[3]);
+
+ return true;
+}
+
+static bool cmd_flag(AESState *s)
+{
+ uint32_t cmd = s->fifo[0];
+ uint32_t raise_irq = cmd & CMD_FLAG_RAISE_IRQ_MASK;
+
+ /* We always process data when it's coming in, so fire an IRQ immediately */
+ if (raise_irq) {
+ s->irq_status |= REG_IRQ_STATUS_FLAG;
+ }
+
+ s->flag_info = cmd & CMD_FLAG_INFO_MASK;
+
+ trace_aes_cmd_flag(!!raise_irq, s->flag_info);
+
+ return true;
+}
+
+static void fifo_process(AESState *s)
+{
+ uint32_t cmd = s->fifo[0] >> CMD_SHIFT;
+ bool success = false;
+
+ if (!s->fifo_idx) {
+ return;
+ }
+
+ switch (cmd) {
+ case CMD_KEY:
+ success = cmd_key(s);
+ break;
+ case CMD_IV:
+ success = cmd_iv(s);
+ break;
+ case CMD_DATA:
+ success = cmd_data(s);
+ break;
+ case CMD_STORE_IV:
+ success = cmd_store_iv(s);
+ break;
+ case CMD_FLAG:
+ success = cmd_flag(s);
+ break;
+ default:
+ s->irq_status |= REG_IRQ_STATUS_INVALID_CMD;
+ break;
+ }
+
+ if (success) {
+ s->fifo_idx = 0;
+ }
+
+ trace_aes_fifo_process(cmd, success ? 1 : 0);
+}
+
+static void aes1_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
+{
+ AESState *s = opaque;
+
+ trace_aes_write(offset, val);
+
+ switch (offset) {
+ case REG_IRQ_STATUS:
+ s->irq_status &= ~val;
+ break;
+ case REG_IRQ_ENABLE:
+ s->irq_enable = val;
+ break;
+ case REG_FIFO:
+ fifo_append(s, val);
+ fifo_process(s);
+ break;
+ default:
+ qemu_log_mask(LOG_UNIMP,
+ "%s: Unknown AES MMIO offset %"PRIx64", data %"PRIx64"\n",
+ __func__, offset, val);
+ return;
+ }
+
+ aes_update_irq(s);
+}
+
+static const MemoryRegionOps aes1_ops = {
+ .read = aes1_read,
+ .write = aes1_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+};
+
+static uint64_t aes2_read(void *opaque, hwaddr offset, unsigned size)
+{
+ uint64_t res = 0;
+
+ switch (offset) {
+ case 0:
+ res = 0;
+ break;
+ default:
+ qemu_log_mask(LOG_UNIMP,
+ "%s: Unknown AES MMIO 2 offset %"PRIx64"\n",
+ __func__, offset);
+ break;
+ }
+
+ trace_aes_2_read(offset, res);
+
+ return res;
+}
+
+static void aes2_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
+{
+ trace_aes_2_write(offset, val);
+
+ switch (offset) {
+ default:
+ qemu_log_mask(LOG_UNIMP,
+ "%s: Unknown AES MMIO 2 offset %"PRIx64", data %"PRIx64"\n",
+ __func__, offset, val);
+ return;
+ }
+}
+
+static const MemoryRegionOps aes2_ops = {
+ .read = aes2_read,
+ .write = aes2_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+};
+
+static void aes_reset(Object *obj, ResetType type)
+{
+ AESState *s = APPLE_AES(obj);
+
+ s->status = 0x3f80;
+ s->q_status = 2;
+ s->irq_status = 0;
+ s->irq_enable = 0;
+ s->watermark = 0;
+}
+
+static void aes_init(Object *obj)
+{
+ AESState *s = APPLE_AES(obj);
+
+ memory_region_init_io(&s->iomem1, obj, &aes1_ops, s, TYPE_APPLE_AES, 0x4000);
+ memory_region_init_io(&s->iomem2, obj, &aes2_ops, s, TYPE_APPLE_AES, 0x4000);
+ sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem1);
+ sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem2);
+ sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq);
+ s->as = &address_space_memory;
+}
+
+static void aes_class_init(ObjectClass *klass, void *data)
+{
+ ResettableClass *rc = RESETTABLE_CLASS(klass);
+
+ rc->phases.hold = aes_reset;
+}
+
+static const TypeInfo aes_info = {
+ .name = TYPE_APPLE_AES,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(AESState),
+ .class_init = aes_class_init,
+ .instance_init = aes_init,
+};
+
+static void aes_register_types(void)
+{
+ type_register_static(&aes_info);
+}
+
+type_init(aes_register_types)
diff --git a/hw/vmapple/meson.build b/hw/vmapple/meson.build
index e69de29bb2d..bcd4dcb28d2 100644
--- a/hw/vmapple/meson.build
+++ b/hw/vmapple/meson.build
@@ -0,0 +1 @@
+system_ss.add(when: 'CONFIG_VMAPPLE_AES', if_true: files('aes.c'))
diff --git a/hw/vmapple/trace-events b/hw/vmapple/trace-events
index 9ccc5790487..fbbef40eac0 100644
--- a/hw/vmapple/trace-events
+++ b/hw/vmapple/trace-events
@@ -1,2 +1,16 @@
# See docs/devel/tracing.rst for syntax documentation.
+# aes.c
+aes_read(uint64_t offset, uint64_t res) "offset=0x%"PRIx64" res=0x%"PRIx64
+aes_cmd_key_select_builtin(uint32_t ctx, uint32_t key_id, const char *direction, const char *cipher) "[%d] Selecting builtin key %d to %scrypt with %s"
+aes_cmd_key_select_new(uint32_t ctx, uint32_t key_len, const char *direction, const char *cipher) "[%d] Selecting new key size=%d to %scrypt with %s"
+aes_cmd_iv(uint32_t ctx, uint32_t iv0, uint32_t iv1, uint32_t iv2, uint32_t iv3) "[%d] 0x%08x 0x%08x 0x%08x 0x%08x"
+aes_cmd_data(uint32_t key, uint32_t iv, uint64_t src, uint64_t dst, uint32_t len) "[key=%d iv=%d] src=0x%"PRIx64" dst=0x%"PRIx64" len=0x%x"
+aes_cmd_store_iv(uint32_t ctx, uint64_t addr, uint32_t iv0, uint32_t iv1, uint32_t iv2, uint32_t iv3) "[%d] addr=0x%"PRIx64"x -> 0x%08x 0x%08x 0x%08x 0x%08x"
+aes_cmd_flag(uint32_t raise, uint32_t flag_info) "raise=%d flag_info=0x%x"
+aes_fifo_process(uint32_t cmd, uint32_t success) "cmd=%d success=%d"
+aes_write(uint64_t offset, uint64_t val) "offset=0x%"PRIx64" val=0x%"PRIx64
+aes_2_read(uint64_t offset, uint64_t res) "offset=0x%"PRIx64" res=0x%"PRIx64
+aes_2_write(uint64_t offset, uint64_t val) "offset=0x%"PRIx64" val=0x%"PRIx64
+aes_dump_data(const char *desc, const char *hex) "%s%s"
+
diff --git a/include/hw/vmapple/vmapple.h b/include/hw/vmapple/vmapple.h
new file mode 100644
index 00000000000..6762b6c869f
--- /dev/null
+++ b/include/hw/vmapple/vmapple.h
@@ -0,0 +1,17 @@
+/*
+ * Devices specific to the VMApple machine type
+ *
+ * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef HW_VMAPPLE_VMAPPLE_H
+#define HW_VMAPPLE_VMAPPLE_H
+
+#define TYPE_APPLE_AES "apple-aes"
+
+#endif /* HW_VMAPPLE_VMAPPLE_H */
diff --git a/include/qemu/cutils.h b/include/qemu/cutils.h
index 34a9b9b2204..36c68ce86c5 100644
--- a/include/qemu/cutils.h
+++ b/include/qemu/cutils.h
@@ -302,4 +302,19 @@ GString *qemu_hexdump_line(GString *str, const void *buf, size_t len,
void qemu_hexdump(FILE *fp, const char *prefix,
const void *bufptr, size_t size);
+/**
+ * qemu_hexdump_to_buffer:
+ * @buffer: output string buffer
+ * @buffer_size: amount of available space in buffer. Must be at least
+ * data_size*2+1.
+ * @data: input bytes
+ * @data_size: number of bytes in data
+ *
+ * Converts the @data_size bytes in @data into hex digit pairs, writing them to
+ * @buffer. Finally, a nul terminating character is written; @buffer therefore
+ * needs space for (data_size*2+1) chars.
+ */
+void qemu_hexdump_to_buffer(char *restrict buffer, size_t buffer_size,
+ const uint8_t *restrict data, size_t data_size);
+
#endif
diff --git a/util/hexdump.c b/util/hexdump.c
index ae0d4992dcf..a5c60a91828 100644
--- a/util/hexdump.c
+++ b/util/hexdump.c
@@ -15,6 +15,7 @@
#include "qemu/osdep.h"
#include "qemu/cutils.h"
+#include "qemu/host-utils.h"
static inline char hexdump_nibble(unsigned x)
{
@@ -97,3 +98,20 @@ void qemu_hexdump(FILE *fp, const char *prefix,
}
}
+
+void qemu_hexdump_to_buffer(char *restrict buffer, size_t buffer_size,
+ const uint8_t *restrict data, size_t data_size)
+{
+ size_t i;
+ uint64_t required_buffer_size;
+ bool overflow = umul64_overflow(data_size, 2, &required_buffer_size);
+ overflow |= uadd64_overflow(required_buffer_size, 1, &required_buffer_size);
+ assert(buffer_size >= required_buffer_size && !overflow);
+
+ for (i = 0; i < data_size; i++) {
+ uint8_t val = data[i];
+ *(buffer++) = hexdump_nibble(val >> 4);
+ *(buffer++) = hexdump_nibble(val & 0xf);
+ }
+ *buffer = '\0';
+}
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 11/15] hw/vmapple/bdif: Introduce vmapple backdoor interface
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (9 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 10/15] hw/vmapple/aes: Introduce aes engine Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 12/15] hw/vmapple/cfg: Introduce vmapple cfg region Phil Dennis-Jordan
` (3 subsequent siblings)
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv,
Alexander Graf
From: Alexander Graf <graf@amazon.com>
The VMApple machine exposes AUX and ROOT block devices (as well as USB OTG
emulation) via virtio-pci as well as a special, simple backdoor platform
device.
This patch implements this backdoor platform device to the best of my
understanding. I left out any USB OTG parts; they're only needed for
guest recovery and I don't understand the protocol yet.
Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---
v4:
* Moved most header code to .c, rest to vmapple.h
* Better compliance with coding, naming, and formatting conventions.
hw/vmapple/Kconfig | 3 +
hw/vmapple/bdif.c | 261 +++++++++++++++++++++++++++++++++++
hw/vmapple/meson.build | 1 +
hw/vmapple/trace-events | 5 +
include/hw/vmapple/vmapple.h | 2 +
5 files changed, 272 insertions(+)
create mode 100644 hw/vmapple/bdif.c
diff --git a/hw/vmapple/Kconfig b/hw/vmapple/Kconfig
index a73504d5999..68f88876eb9 100644
--- a/hw/vmapple/Kconfig
+++ b/hw/vmapple/Kconfig
@@ -1,3 +1,6 @@
config VMAPPLE_AES
bool
+config VMAPPLE_BDIF
+ bool
+
diff --git a/hw/vmapple/bdif.c b/hw/vmapple/bdif.c
new file mode 100644
index 00000000000..7c7a277665a
--- /dev/null
+++ b/hw/vmapple/bdif.c
@@ -0,0 +1,261 @@
+/*
+ * VMApple Backdoor Interface
+ *
+ * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "trace.h"
+#include "hw/vmapple/vmapple.h"
+#include "hw/sysbus.h"
+#include "hw/block/block.h"
+#include "qapi/error.h"
+#include "sysemu/block-backend.h"
+
+OBJECT_DECLARE_SIMPLE_TYPE(VMAppleBdifState, VMAPPLE_BDIF)
+
+struct VMAppleBdifState {
+ SysBusDevice parent_obj;
+
+ BlockBackend *aux;
+ BlockBackend *root;
+ MemoryRegion mmio;
+};
+
+#define VMAPPLE_BDIF_SIZE 0x00200000
+
+#define REG_DEVID_MASK 0xffff0000
+#define DEVID_ROOT 0x00000000
+#define DEVID_AUX 0x00010000
+#define DEVID_USB 0x00100000
+
+#define REG_STATUS 0x0
+#define REG_STATUS_ACTIVE BIT(0)
+#define REG_CFG 0x4
+#define REG_CFG_ACTIVE BIT(1)
+#define REG_UNK1 0x8
+#define REG_BUSY 0x10
+#define REG_BUSY_READY BIT(0)
+#define REG_UNK2 0x400
+#define REG_CMD 0x408
+#define REG_NEXT_DEVICE 0x420
+#define REG_UNK3 0x434
+
+typedef struct VblkSector {
+ uint32_t pad;
+ uint32_t pad2;
+ uint32_t sector;
+ uint32_t pad3;
+} VblkSector;
+
+typedef struct VblkReqCmd {
+ uint64_t addr;
+ uint32_t len;
+ uint32_t flags;
+} VblkReqCmd;
+
+typedef struct VblkReq {
+ VblkReqCmd sector;
+ VblkReqCmd data;
+ VblkReqCmd retval;
+} VblkReq;
+
+#define VBLK_DATA_FLAGS_READ 0x00030001
+#define VBLK_DATA_FLAGS_WRITE 0x00010001
+
+#define VBLK_RET_SUCCESS 0
+#define VBLK_RET_FAILED 1
+
+static uint64_t bdif_read(void *opaque, hwaddr offset, unsigned size)
+{
+ uint64_t ret = -1;
+ uint64_t devid = offset & REG_DEVID_MASK;
+
+ switch (offset & ~REG_DEVID_MASK) {
+ case REG_STATUS:
+ ret = REG_STATUS_ACTIVE;
+ break;
+ case REG_CFG:
+ ret = REG_CFG_ACTIVE;
+ break;
+ case REG_UNK1:
+ ret = 0x420;
+ break;
+ case REG_BUSY:
+ ret = REG_BUSY_READY;
+ break;
+ case REG_UNK2:
+ ret = 0x1;
+ break;
+ case REG_UNK3:
+ ret = 0x0;
+ break;
+ case REG_NEXT_DEVICE:
+ switch (devid) {
+ case DEVID_ROOT:
+ ret = 0x8000000;
+ break;
+ case DEVID_AUX:
+ ret = 0x10000;
+ break;
+ }
+ break;
+ }
+
+ trace_bdif_read(offset, size, ret);
+ return ret;
+}
+
+static void le2cpu_sector(VblkSector *sector)
+{
+ sector->sector = le32_to_cpu(sector->sector);
+}
+
+static void le2cpu_reqcmd(VblkReqCmd *cmd)
+{
+ cmd->addr = le64_to_cpu(cmd->addr);
+ cmd->len = le32_to_cpu(cmd->len);
+ cmd->flags = le32_to_cpu(cmd->flags);
+}
+
+static void le2cpu_req(VblkReq *req)
+{
+ le2cpu_reqcmd(&req->sector);
+ le2cpu_reqcmd(&req->data);
+ le2cpu_reqcmd(&req->retval);
+}
+
+static void vblk_cmd(uint64_t devid, BlockBackend *blk, uint64_t value,
+ uint64_t static_off)
+{
+ VblkReq req;
+ VblkSector sector;
+ uint64_t off = 0;
+ char *buf = NULL;
+ uint8_t ret = VBLK_RET_FAILED;
+ int r;
+
+ cpu_physical_memory_read(value, &req, sizeof(req));
+ le2cpu_req(&req);
+
+ if (req.sector.len != sizeof(sector)) {
+ ret = VBLK_RET_FAILED;
+ goto out;
+ }
+
+ /* Read the vblk command */
+ cpu_physical_memory_read(req.sector.addr, §or, sizeof(sector));
+ le2cpu_sector(§or);
+
+ off = sector.sector * 512ULL + static_off;
+
+ /* Sanity check that we're not allocating bogus sizes */
+ if (req.data.len > 128 * MiB) {
+ goto out;
+ }
+
+ buf = g_malloc0(req.data.len);
+ switch (req.data.flags) {
+ case VBLK_DATA_FLAGS_READ:
+ r = blk_pread(blk, off, req.data.len, buf, 0);
+ trace_bdif_vblk_read(devid == DEVID_AUX ? "aux" : "root",
+ req.data.addr, off, req.data.len, r);
+ if (r < 0) {
+ goto out;
+ }
+ cpu_physical_memory_write(req.data.addr, buf, req.data.len);
+ ret = VBLK_RET_SUCCESS;
+ break;
+ case VBLK_DATA_FLAGS_WRITE:
+ /* Not needed, iBoot only reads */
+ break;
+ default:
+ break;
+ }
+
+out:
+ g_free(buf);
+ cpu_physical_memory_write(req.retval.addr, &ret, 1);
+}
+
+static void bdif_write(void *opaque, hwaddr offset,
+ uint64_t value, unsigned size)
+{
+ VMAppleBdifState *s = opaque;
+ uint64_t devid = (offset & REG_DEVID_MASK);
+
+ trace_bdif_write(offset, size, value);
+
+ switch (offset & ~REG_DEVID_MASK) {
+ case REG_CMD:
+ switch (devid) {
+ case DEVID_ROOT:
+ vblk_cmd(devid, s->root, value, 0x0);
+ break;
+ case DEVID_AUX:
+ vblk_cmd(devid, s->aux, value, 0x0);
+ break;
+ }
+ break;
+ }
+}
+
+static const MemoryRegionOps bdif_ops = {
+ .read = bdif_read,
+ .write = bdif_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 1,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 1,
+ .max_access_size = 8,
+ },
+};
+
+static void bdif_init(Object *obj)
+{
+ VMAppleBdifState *s = VMAPPLE_BDIF(obj);
+
+ memory_region_init_io(&s->mmio, obj, &bdif_ops, obj,
+ "VMApple Backdoor Interface", VMAPPLE_BDIF_SIZE);
+ sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mmio);
+}
+
+static Property bdif_properties[] = {
+ DEFINE_PROP_DRIVE("aux", VMAppleBdifState, aux),
+ DEFINE_PROP_DRIVE("root", VMAppleBdifState, root),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void bdif_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->desc = "VMApple Backdoor Interface";
+ device_class_set_props(dc, bdif_properties);
+}
+
+static const TypeInfo bdif_info = {
+ .name = TYPE_VMAPPLE_BDIF,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(VMAppleBdifState),
+ .instance_init = bdif_init,
+ .class_init = bdif_class_init,
+};
+
+static void bdif_register_types(void)
+{
+ type_register_static(&bdif_info);
+}
+
+type_init(bdif_register_types)
diff --git a/hw/vmapple/meson.build b/hw/vmapple/meson.build
index bcd4dcb28d2..d4624713deb 100644
--- a/hw/vmapple/meson.build
+++ b/hw/vmapple/meson.build
@@ -1 +1,2 @@
system_ss.add(when: 'CONFIG_VMAPPLE_AES', if_true: files('aes.c'))
+system_ss.add(when: 'CONFIG_VMAPPLE_BDIF', if_true: files('bdif.c'))
diff --git a/hw/vmapple/trace-events b/hw/vmapple/trace-events
index fbbef40eac0..824f6595d35 100644
--- a/hw/vmapple/trace-events
+++ b/hw/vmapple/trace-events
@@ -14,3 +14,8 @@ aes_2_read(uint64_t offset, uint64_t res) "offset=0x%"PRIx64" res=0x%"PRIx64
aes_2_write(uint64_t offset, uint64_t val) "offset=0x%"PRIx64" val=0x%"PRIx64
aes_dump_data(const char *desc, const char *hex) "%s%s"
+# bdif.c
+bdif_read(uint64_t offset, uint32_t size, uint64_t value) "offset=0x%"PRIx64" size=0x%x value=0x%"PRIx64
+bdif_write(uint64_t offset, uint32_t size, uint64_t value) "offset=0x%"PRIx64" size=0x%x value=0x%"PRIx64
+bdif_vblk_read(const char *dev, uint64_t addr, uint64_t offset, uint32_t len, int r) "dev=%s addr=0x%"PRIx64" off=0x%"PRIx64" size=0x%x r=%d"
+
diff --git a/include/hw/vmapple/vmapple.h b/include/hw/vmapple/vmapple.h
index 6762b6c869f..9090e9c5ac8 100644
--- a/include/hw/vmapple/vmapple.h
+++ b/include/hw/vmapple/vmapple.h
@@ -14,4 +14,6 @@
#define TYPE_APPLE_AES "apple-aes"
+#define TYPE_VMAPPLE_BDIF "vmapple-bdif"
+
#endif /* HW_VMAPPLE_VMAPPLE_H */
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 12/15] hw/vmapple/cfg: Introduce vmapple cfg region
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (10 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 11/15] hw/vmapple/bdif: Introduce vmapple backdoor interface Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 13/15] hw/vmapple/virtio-blk: Add support for apple virtio-blk Phil Dennis-Jordan
` (2 subsequent siblings)
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv,
Alexander Graf
From: Alexander Graf <graf@amazon.com>
Instead of device tree or other more standardized means, VMApple passes
platform configuration to the first stage boot loader in a binary encoded
format that resides at a dedicated RAM region in physical address space.
This patch models this configuration space as a qdev device which we can
then map at the fixed location in the address space. That way, we can
influence and annotate all configuration fields easily.
Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---
v3:
* Replaced legacy device reset method with Resettable method
v4:
* Fixed initialisation of default values for properties
* Dropped superfluous endianness conversions
* Moved most header code to .c, device name #define goes in vmapple.h
v5:
* Improved error reporting in case of string property buffer overflow.
hw/vmapple/Kconfig | 3 +
hw/vmapple/cfg.c | 203 +++++++++++++++++++++++++++++++++++
hw/vmapple/meson.build | 1 +
include/hw/vmapple/vmapple.h | 2 +
4 files changed, 209 insertions(+)
create mode 100644 hw/vmapple/cfg.c
diff --git a/hw/vmapple/Kconfig b/hw/vmapple/Kconfig
index 68f88876eb9..8bbeb9a9237 100644
--- a/hw/vmapple/Kconfig
+++ b/hw/vmapple/Kconfig
@@ -4,3 +4,6 @@ config VMAPPLE_AES
config VMAPPLE_BDIF
bool
+config VMAPPLE_CFG
+ bool
+
diff --git a/hw/vmapple/cfg.c b/hw/vmapple/cfg.c
new file mode 100644
index 00000000000..91c57239f86
--- /dev/null
+++ b/hw/vmapple/cfg.c
@@ -0,0 +1,203 @@
+/*
+ * VMApple Configuration Region
+ *
+ * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/vmapple/vmapple.h"
+#include "hw/sysbus.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "qapi/error.h"
+#include "net/net.h"
+
+OBJECT_DECLARE_SIMPLE_TYPE(VMAppleCfgState, VMAPPLE_CFG)
+
+#define VMAPPLE_CFG_SIZE 0x00010000
+
+typedef struct VMAppleCfg {
+ uint32_t version; /* 0x000 */
+ uint32_t nr_cpus; /* 0x004 */
+ uint32_t unk1; /* 0x008 */
+ uint32_t unk2; /* 0x00c */
+ uint32_t unk3; /* 0x010 */
+ uint32_t unk4; /* 0x014 */
+ uint64_t ecid; /* 0x018 */
+ uint64_t ram_size; /* 0x020 */
+ uint32_t run_installer1; /* 0x028 */
+ uint32_t unk5; /* 0x02c */
+ uint32_t unk6; /* 0x030 */
+ uint32_t run_installer2; /* 0x034 */
+ uint32_t rnd; /* 0x038 */
+ uint32_t unk7; /* 0x03c */
+ MACAddr mac_en0; /* 0x040 */
+ uint8_t pad1[2];
+ MACAddr mac_en1; /* 0x048 */
+ uint8_t pad2[2];
+ MACAddr mac_wifi0; /* 0x050 */
+ uint8_t pad3[2];
+ MACAddr mac_bt0; /* 0x058 */
+ uint8_t pad4[2];
+ uint8_t reserved[0xa0]; /* 0x060 */
+ uint32_t cpu_ids[0x80]; /* 0x100 */
+ uint8_t scratch[0x200]; /* 0x180 */
+ char serial[32]; /* 0x380 */
+ char unk8[32]; /* 0x3a0 */
+ char model[32]; /* 0x3c0 */
+ uint8_t unk9[32]; /* 0x3e0 */
+ uint32_t unk10; /* 0x400 */
+ char soc_name[32]; /* 0x404 */
+} VMAppleCfg;
+
+struct VMAppleCfgState {
+ SysBusDevice parent_obj;
+ VMAppleCfg cfg;
+
+ MemoryRegion mem;
+ char *serial;
+ char *model;
+ char *soc_name;
+};
+
+static void vmapple_cfg_reset(Object *obj, ResetType type)
+{
+ VMAppleCfgState *s = VMAPPLE_CFG(obj);
+ VMAppleCfg *cfg;
+
+ cfg = memory_region_get_ram_ptr(&s->mem);
+ memset(cfg, 0, VMAPPLE_CFG_SIZE);
+ *cfg = s->cfg;
+}
+
+static bool strlcpy_set_error(char *restrict dst, const char *restrict src,
+ size_t dst_size, Error **errp,
+ const char *parent_func, const char *location,
+ const char *buffer_name, const char *extra_info)
+{
+ size_t len;
+
+ len = g_strlcpy(dst, src, dst_size);
+ if (len < dst_size) { /* len does not count nul terminator */
+ return true;
+ }
+
+ error_setg(errp,
+ "%s (%s) strlcpy error: Destination buffer %s too small "
+ "(need %zu, have %zu) %s",
+ parent_func, location, buffer_name, len + 1, dst_size, extra_info);
+ return false;
+}
+
+/*
+ * String copying wrapper that returns and reports a runtime error in
+ * case of truncation due to insufficient destination buffer space.
+ */
+#define strlcpy_array_return_error(dst_array, src, errp, extra_info) \
+ do { \
+ if (!strlcpy_set_error((dst_array), (src), ARRAY_SIZE(dst_array), \
+ (errp), __func__, stringify(__LINE__), \
+ # dst_array, extra_info)) { \
+ return; \
+ } \
+ } while (0)
+
+static void vmapple_cfg_realize(DeviceState *dev, Error **errp)
+{
+ VMAppleCfgState *s = VMAPPLE_CFG(dev);
+ uint32_t i;
+
+ if (!s->serial) {
+ s->serial = g_strdup("1234");
+ }
+ if (!s->model) {
+ s->model = g_strdup("VM0001");
+ }
+ if (!s->soc_name) {
+ s->soc_name = g_strdup("Apple M1 (Virtual)");
+ }
+
+ strlcpy_array_return_error(s->cfg.serial, s->serial, errp,
+ "setting 'serial' property on VMApple cfg device");
+ strlcpy_array_return_error(s->cfg.model, s->model, errp,
+ "setting 'model' property on VMApple cfg device");
+ strlcpy_array_return_error(s->cfg.soc_name, s->soc_name, errp,
+ "setting 'soc_name' property on VMApple cfg device");
+ strlcpy_array_return_error(s->cfg.unk8, "D/A", errp, "");
+ s->cfg.version = 2;
+ s->cfg.unk1 = 1;
+ s->cfg.unk2 = 1;
+ s->cfg.unk3 = 0x20;
+ s->cfg.unk4 = 0;
+ s->cfg.unk5 = 1;
+ s->cfg.unk6 = 1;
+ s->cfg.unk7 = 0;
+ s->cfg.unk10 = 1;
+
+ if (s->cfg.nr_cpus > ARRAY_SIZE(s->cfg.cpu_ids)) {
+ error_setg(errp,
+ "Failed to create %u CPUs, vmapple machine supports %zu max",
+ s->cfg.nr_cpus, ARRAY_SIZE(s->cfg.cpu_ids));
+ return;
+ }
+ for (i = 0; i < s->cfg.nr_cpus; i++) {
+ s->cfg.cpu_ids[i] = i;
+ }
+}
+
+static void vmapple_cfg_init(Object *obj)
+{
+ VMAppleCfgState *s = VMAPPLE_CFG(obj);
+
+ memory_region_init_ram(&s->mem, obj, "VMApple Config", VMAPPLE_CFG_SIZE,
+ &error_fatal);
+ sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mem);
+}
+
+static Property vmapple_cfg_properties[] = {
+ DEFINE_PROP_UINT32("nr-cpus", VMAppleCfgState, cfg.nr_cpus, 1),
+ DEFINE_PROP_UINT64("ecid", VMAppleCfgState, cfg.ecid, 0),
+ DEFINE_PROP_UINT64("ram-size", VMAppleCfgState, cfg.ram_size, 0),
+ DEFINE_PROP_UINT32("run_installer1", VMAppleCfgState, cfg.run_installer1, 0),
+ DEFINE_PROP_UINT32("run_installer2", VMAppleCfgState, cfg.run_installer2, 0),
+ DEFINE_PROP_UINT32("rnd", VMAppleCfgState, cfg.rnd, 0),
+ DEFINE_PROP_MACADDR("mac-en0", VMAppleCfgState, cfg.mac_en0),
+ DEFINE_PROP_MACADDR("mac-en1", VMAppleCfgState, cfg.mac_en1),
+ DEFINE_PROP_MACADDR("mac-wifi0", VMAppleCfgState, cfg.mac_wifi0),
+ DEFINE_PROP_MACADDR("mac-bt0", VMAppleCfgState, cfg.mac_bt0),
+ DEFINE_PROP_STRING("serial", VMAppleCfgState, serial),
+ DEFINE_PROP_STRING("model", VMAppleCfgState, model),
+ DEFINE_PROP_STRING("soc_name", VMAppleCfgState, soc_name),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void vmapple_cfg_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ ResettableClass *rc = RESETTABLE_CLASS(klass);
+
+ dc->realize = vmapple_cfg_realize;
+ dc->desc = "VMApple Configuration Region";
+ device_class_set_props(dc, vmapple_cfg_properties);
+ rc->phases.hold = vmapple_cfg_reset;
+}
+
+static const TypeInfo vmapple_cfg_info = {
+ .name = TYPE_VMAPPLE_CFG,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(VMAppleCfgState),
+ .instance_init = vmapple_cfg_init,
+ .class_init = vmapple_cfg_class_init,
+};
+
+static void vmapple_cfg_register_types(void)
+{
+ type_register_static(&vmapple_cfg_info);
+}
+
+type_init(vmapple_cfg_register_types)
diff --git a/hw/vmapple/meson.build b/hw/vmapple/meson.build
index d4624713deb..64b78693a31 100644
--- a/hw/vmapple/meson.build
+++ b/hw/vmapple/meson.build
@@ -1,2 +1,3 @@
system_ss.add(when: 'CONFIG_VMAPPLE_AES', if_true: files('aes.c'))
system_ss.add(when: 'CONFIG_VMAPPLE_BDIF', if_true: files('bdif.c'))
+system_ss.add(when: 'CONFIG_VMAPPLE_CFG', if_true: files('cfg.c'))
diff --git a/include/hw/vmapple/vmapple.h b/include/hw/vmapple/vmapple.h
index 9090e9c5ac8..3bba59f5ec7 100644
--- a/include/hw/vmapple/vmapple.h
+++ b/include/hw/vmapple/vmapple.h
@@ -16,4 +16,6 @@
#define TYPE_VMAPPLE_BDIF "vmapple-bdif"
+#define TYPE_VMAPPLE_CFG "vmapple-cfg"
+
#endif /* HW_VMAPPLE_VMAPPLE_H */
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 13/15] hw/vmapple/virtio-blk: Add support for apple virtio-blk
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (11 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 12/15] hw/vmapple/cfg: Introduce vmapple cfg region Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 14/15] hw/block/virtio-blk: Replaces request free function with g_free Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 15/15] hw/vmapple/vmapple: Add vmapple machine type Phil Dennis-Jordan
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv,
Alexander Graf
From: Alexander Graf <graf@amazon.com>
Apple has its own virtio-blk PCI device ID where it deviates from the
official virtio-pci spec slightly: It puts a new "apple type"
field at a static offset in config space and introduces a new barrier
command.
This patch first creates a mechanism for virtio-blk downstream classes to
handle unknown commands. It then creates such a downstream class and a new
vmapple-virtio-blk-pci class which support the additional apple type config
identifier as well as the barrier command.
It then exposes 2 subclasses from that that we can use to expose root and
aux virtio-blk devices: "vmapple-virtio-root" and "vmapple-virtio-aux".
Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---
v4:
* Use recommended object type declaration pattern.
* Correctly log unimplemented code paths.
* Most header code moved to .c, type name #defines moved to vmapple.h
v5:
* Corrected handling of potentially unaligned writes to virtio config area.
* Simplified passing through device variant type to subobject.
hw/block/virtio-blk.c | 19 ++-
hw/vmapple/Kconfig | 3 +
hw/vmapple/meson.build | 1 +
hw/vmapple/virtio-blk.c | 226 +++++++++++++++++++++++++++++++++
include/hw/pci/pci_ids.h | 1 +
include/hw/virtio/virtio-blk.h | 12 +-
include/hw/vmapple/vmapple.h | 4 +
7 files changed, 261 insertions(+), 5 deletions(-)
create mode 100644 hw/vmapple/virtio-blk.c
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index 9166d7974d4..9e8337bb639 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -50,12 +50,12 @@ static void virtio_blk_init_request(VirtIOBlock *s, VirtQueue *vq,
req->mr_next = NULL;
}
-static void virtio_blk_free_request(VirtIOBlockReq *req)
+void virtio_blk_free_request(VirtIOBlockReq *req)
{
g_free(req);
}
-static void virtio_blk_req_complete(VirtIOBlockReq *req, unsigned char status)
+void virtio_blk_req_complete(VirtIOBlockReq *req, unsigned char status)
{
VirtIOBlock *s = req->dev;
VirtIODevice *vdev = VIRTIO_DEVICE(s);
@@ -966,8 +966,18 @@ static int virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb)
break;
}
default:
- virtio_blk_req_complete(req, VIRTIO_BLK_S_UNSUPP);
- virtio_blk_free_request(req);
+ {
+ /*
+ * Give subclasses a chance to handle unknown requests. This way the
+ * class lookup is not in the hot path.
+ */
+ VirtIOBlkClass *vbk = VIRTIO_BLK_GET_CLASS(s);
+ if (!vbk->handle_unknown_request ||
+ !vbk->handle_unknown_request(req, mrb, type)) {
+ virtio_blk_req_complete(req, VIRTIO_BLK_S_UNSUPP);
+ virtio_blk_free_request(req);
+ }
+ }
}
return 0;
}
@@ -2044,6 +2054,7 @@ static const TypeInfo virtio_blk_info = {
.instance_size = sizeof(VirtIOBlock),
.instance_init = virtio_blk_instance_init,
.class_init = virtio_blk_class_init,
+ .class_size = sizeof(VirtIOBlkClass),
};
static void virtio_register_types(void)
diff --git a/hw/vmapple/Kconfig b/hw/vmapple/Kconfig
index 8bbeb9a9237..bcd1be63e3c 100644
--- a/hw/vmapple/Kconfig
+++ b/hw/vmapple/Kconfig
@@ -7,3 +7,6 @@ config VMAPPLE_BDIF
config VMAPPLE_CFG
bool
+config VMAPPLE_VIRTIO_BLK
+ bool
+
diff --git a/hw/vmapple/meson.build b/hw/vmapple/meson.build
index 64b78693a31..bf17cf906c9 100644
--- a/hw/vmapple/meson.build
+++ b/hw/vmapple/meson.build
@@ -1,3 +1,4 @@
system_ss.add(when: 'CONFIG_VMAPPLE_AES', if_true: files('aes.c'))
system_ss.add(when: 'CONFIG_VMAPPLE_BDIF', if_true: files('bdif.c'))
system_ss.add(when: 'CONFIG_VMAPPLE_CFG', if_true: files('cfg.c'))
+system_ss.add(when: 'CONFIG_VMAPPLE_VIRTIO_BLK', if_true: files('virtio-blk.c'))
diff --git a/hw/vmapple/virtio-blk.c b/hw/vmapple/virtio-blk.c
new file mode 100644
index 00000000000..1652151ec9c
--- /dev/null
+++ b/hw/vmapple/virtio-blk.c
@@ -0,0 +1,226 @@
+/*
+ * VMApple specific VirtIO Block implementation
+ *
+ * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * VMApple uses almost standard VirtIO Block, but with a few key differences:
+ *
+ * - Different PCI device/vendor ID
+ * - An additional "type" identifier to differentiate AUX and Root volumes
+ * - An additional BARRIER command
+ */
+
+#include "qemu/osdep.h"
+#include "hw/vmapple/vmapple.h"
+#include "hw/virtio/virtio-blk.h"
+#include "hw/virtio/virtio-pci.h"
+#include "qemu/bswap.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "qapi/error.h"
+
+OBJECT_DECLARE_TYPE(VMAppleVirtIOBlk, VMAppleVirtIOBlkClass, VMAPPLE_VIRTIO_BLK)
+
+typedef struct VMAppleVirtIOBlkClass {
+ VirtIOBlkClass parent;
+
+ void (*get_config)(VirtIODevice *vdev, uint8_t *config);
+} VMAppleVirtIOBlkClass;
+
+typedef struct VMAppleVirtIOBlk {
+ VirtIOBlock parent_obj;
+
+ uint32_t apple_type;
+} VMAppleVirtIOBlk;
+
+/*
+ * vmapple-virtio-blk-pci: This extends VirtioPCIProxy.
+ */
+#define TYPE_VMAPPLE_VIRTIO_BLK_PCI "vmapple-virtio-blk-pci-base"
+OBJECT_DECLARE_SIMPLE_TYPE(VMAppleVirtIOBlkPCI, VMAPPLE_VIRTIO_BLK_PCI)
+
+#define VIRTIO_BLK_T_APPLE_BARRIER 0x10000
+
+#define VIRTIO_APPLE_TYPE_ROOT 1
+#define VIRTIO_APPLE_TYPE_AUX 2
+
+static bool vmapple_virtio_blk_handle_unknown_request(VirtIOBlockReq *req,
+ MultiReqBuffer *mrb,
+ uint32_t type)
+{
+ switch (type) {
+ case VIRTIO_BLK_T_APPLE_BARRIER:
+ qemu_log_mask(LOG_UNIMP, "%s: Barrier requests are currently no-ops\n",
+ __func__);
+ virtio_blk_req_complete(req, VIRTIO_BLK_S_OK);
+ virtio_blk_free_request(req);
+ return true;
+ default:
+ return false;
+ }
+}
+
+/*
+ * VMApple virtio-blk uses the same config format as normal virtio, with one
+ * exception: It adds an "apple type" specififer at the same location that
+ * the spec reserves for max_secure_erase_sectors. Let's hook into the
+ * get_config code path here, run it as usual and then patch in the apple type.
+ */
+static void vmapple_virtio_blk_get_config(VirtIODevice *vdev, uint8_t *config)
+{
+ VMAppleVirtIOBlk *dev = VMAPPLE_VIRTIO_BLK(vdev);
+ VMAppleVirtIOBlkClass *vvbk = VMAPPLE_VIRTIO_BLK_GET_CLASS(dev);
+ struct virtio_blk_config *blkcfg = (struct virtio_blk_config *)config;
+
+ vvbk->get_config(vdev, config);
+
+ g_assert(dev->parent_obj.config_size >= endof(struct virtio_blk_config, zoned));
+
+ /* Apple abuses the field for max_secure_erase_sectors as type id */
+ stl_he_p(&blkcfg->max_secure_erase_sectors, dev->apple_type);
+}
+
+static void vmapple_virtio_blk_class_init(ObjectClass *klass, void *data)
+{
+ VirtIOBlkClass *vbk = VIRTIO_BLK_CLASS(klass);
+ VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+ VMAppleVirtIOBlkClass *vvbk = VMAPPLE_VIRTIO_BLK_CLASS(klass);
+
+ vbk->handle_unknown_request = vmapple_virtio_blk_handle_unknown_request;
+ vvbk->get_config = vdc->get_config;
+ vdc->get_config = vmapple_virtio_blk_get_config;
+}
+
+static const TypeInfo vmapple_virtio_blk_info = {
+ .name = TYPE_VMAPPLE_VIRTIO_BLK,
+ .parent = TYPE_VIRTIO_BLK,
+ .instance_size = sizeof(VMAppleVirtIOBlk),
+ .class_init = vmapple_virtio_blk_class_init,
+};
+
+/* PCI Devices */
+
+struct VMAppleVirtIOBlkPCI {
+ VirtIOPCIProxy parent_obj;
+ VMAppleVirtIOBlk vdev;
+ uint32_t apple_type;
+};
+
+
+static Property vmapple_virtio_blk_pci_properties[] = {
+ DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
+ DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
+ VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
+ DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
+ DEV_NVECTORS_UNSPECIFIED),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void vmapple_virtio_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
+{
+ VMAppleVirtIOBlkPCI *dev = VMAPPLE_VIRTIO_BLK_PCI(vpci_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+ VirtIOBlkConf *conf = &dev->vdev.parent_obj.conf;
+
+ if (conf->num_queues == VIRTIO_BLK_AUTO_NUM_QUEUES) {
+ conf->num_queues = virtio_pci_optimal_num_queues(0);
+ }
+
+ if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
+ vpci_dev->nvectors = conf->num_queues + 1;
+ }
+
+ /*
+ * We don't support zones, but we need the additional config space size.
+ * Let's just expose the feature so the rest of the virtio-blk logic
+ * allocates enough space for us. The guest will ignore zones anyway.
+ */
+ virtio_add_feature(&dev->vdev.parent_obj.host_features, VIRTIO_BLK_F_ZONED);
+ /* Propagate the apple type down to the virtio-blk device */
+ dev->vdev.apple_type = dev->apple_type;
+ /* and spawn the virtio-blk device */
+ qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
+
+ /*
+ * The virtio-pci machinery adjusts its vendor/device ID based on whether
+ * we support modern or legacy virtio. Let's patch it back to the Apple
+ * identifiers here.
+ */
+ pci_config_set_vendor_id(vpci_dev->pci_dev.config, PCI_VENDOR_ID_APPLE);
+ pci_config_set_device_id(vpci_dev->pci_dev.config,
+ PCI_DEVICE_ID_APPLE_VIRTIO_BLK);
+}
+
+static void vmapple_virtio_blk_pci_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
+ PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
+
+ set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
+ device_class_set_props(dc, vmapple_virtio_blk_pci_properties);
+ k->realize = vmapple_virtio_blk_pci_realize;
+ pcidev_k->vendor_id = PCI_VENDOR_ID_APPLE;
+ pcidev_k->device_id = PCI_DEVICE_ID_APPLE_VIRTIO_BLK;
+ pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
+ pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
+}
+
+static void vmapple_virtio_blk_pci_instance_init(Object *obj)
+{
+ VMAppleVirtIOBlkPCI *dev = VMAPPLE_VIRTIO_BLK_PCI(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VMAPPLE_VIRTIO_BLK);
+}
+
+static const VirtioPCIDeviceTypeInfo vmapple_virtio_blk_pci_info = {
+ .base_name = TYPE_VMAPPLE_VIRTIO_BLK_PCI,
+ .generic_name = "vmapple-virtio-blk-pci",
+ .instance_size = sizeof(VMAppleVirtIOBlkPCI),
+ .instance_init = vmapple_virtio_blk_pci_instance_init,
+ .class_init = vmapple_virtio_blk_pci_class_init,
+};
+
+static void vmapple_virtio_root_instance_init(Object *obj)
+{
+ VMAppleVirtIOBlkPCI *dev = VMAPPLE_VIRTIO_BLK_PCI(obj);
+
+ dev->apple_type = VIRTIO_APPLE_TYPE_ROOT;
+}
+
+static const TypeInfo vmapple_virtio_root_info = {
+ .name = TYPE_VMAPPLE_VIRTIO_ROOT,
+ .parent = "vmapple-virtio-blk-pci",
+ .instance_size = sizeof(VMAppleVirtIOBlkPCI),
+ .instance_init = vmapple_virtio_root_instance_init,
+};
+
+static void vmapple_virtio_aux_instance_init(Object *obj)
+{
+ VMAppleVirtIOBlkPCI *dev = VMAPPLE_VIRTIO_BLK_PCI(obj);
+
+ dev->apple_type = VIRTIO_APPLE_TYPE_AUX;
+}
+
+static const TypeInfo vmapple_virtio_aux_info = {
+ .name = TYPE_VMAPPLE_VIRTIO_AUX,
+ .parent = "vmapple-virtio-blk-pci",
+ .instance_size = sizeof(VMAppleVirtIOBlkPCI),
+ .instance_init = vmapple_virtio_aux_instance_init,
+};
+
+static void vmapple_virtio_blk_register_types(void)
+{
+ type_register_static(&vmapple_virtio_blk_info);
+ virtio_pci_types_register(&vmapple_virtio_blk_pci_info);
+ type_register_static(&vmapple_virtio_root_info);
+ type_register_static(&vmapple_virtio_aux_info);
+}
+
+type_init(vmapple_virtio_blk_register_types)
diff --git a/include/hw/pci/pci_ids.h b/include/hw/pci/pci_ids.h
index f1a53fea8d6..33e2898be95 100644
--- a/include/hw/pci/pci_ids.h
+++ b/include/hw/pci/pci_ids.h
@@ -191,6 +191,7 @@
#define PCI_DEVICE_ID_APPLE_UNI_N_AGP 0x0020
#define PCI_DEVICE_ID_APPLE_U3_AGP 0x004b
#define PCI_DEVICE_ID_APPLE_UNI_N_GMAC 0x0021
+#define PCI_DEVICE_ID_APPLE_VIRTIO_BLK 0x1a00
#define PCI_VENDOR_ID_SUN 0x108e
#define PCI_DEVICE_ID_SUN_EBUS 0x1000
diff --git a/include/hw/virtio/virtio-blk.h b/include/hw/virtio/virtio-blk.h
index 5c14110c4b1..28d5046ea6c 100644
--- a/include/hw/virtio/virtio-blk.h
+++ b/include/hw/virtio/virtio-blk.h
@@ -24,7 +24,7 @@
#include "qapi/qapi-types-virtio.h"
#define TYPE_VIRTIO_BLK "virtio-blk-device"
-OBJECT_DECLARE_SIMPLE_TYPE(VirtIOBlock, VIRTIO_BLK)
+OBJECT_DECLARE_TYPE(VirtIOBlock, VirtIOBlkClass, VIRTIO_BLK)
/* This is the last element of the write scatter-gather list */
struct virtio_blk_inhdr
@@ -100,6 +100,16 @@ typedef struct MultiReqBuffer {
bool is_write;
} MultiReqBuffer;
+typedef struct VirtIOBlkClass {
+ /*< private >*/
+ VirtioDeviceClass parent;
+ /*< public >*/
+ bool (*handle_unknown_request)(VirtIOBlockReq *req, MultiReqBuffer *mrb,
+ uint32_t type);
+} VirtIOBlkClass;
+
void virtio_blk_handle_vq(VirtIOBlock *s, VirtQueue *vq);
+void virtio_blk_free_request(VirtIOBlockReq *req);
+void virtio_blk_req_complete(VirtIOBlockReq *req, unsigned char status);
#endif
diff --git a/include/hw/vmapple/vmapple.h b/include/hw/vmapple/vmapple.h
index 3bba59f5ec7..b20956e1286 100644
--- a/include/hw/vmapple/vmapple.h
+++ b/include/hw/vmapple/vmapple.h
@@ -18,4 +18,8 @@
#define TYPE_VMAPPLE_CFG "vmapple-cfg"
+#define TYPE_VMAPPLE_VIRTIO_BLK "vmapple-virtio-blk"
+#define TYPE_VMAPPLE_VIRTIO_ROOT "vmapple-virtio-root"
+#define TYPE_VMAPPLE_VIRTIO_AUX "vmapple-virtio-aux"
+
#endif /* HW_VMAPPLE_VMAPPLE_H */
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 14/15] hw/block/virtio-blk: Replaces request free function with g_free
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (12 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 13/15] hw/vmapple/virtio-blk: Add support for apple virtio-blk Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 15/15] hw/vmapple/vmapple: Add vmapple machine type Phil Dennis-Jordan
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv
The virtio_blk_free_request() function has been a 1-liner forwarding
to g_free() for a while now. We may as well call g_free on the request
pointer directly.
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
hw/block/virtio-blk.c | 43 +++++++++++++++-------------------
hw/vmapple/virtio-blk.c | 2 +-
include/hw/virtio/virtio-blk.h | 1 -
3 files changed, 20 insertions(+), 26 deletions(-)
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index 9e8337bb639..40d2c9bc591 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -50,11 +50,6 @@ static void virtio_blk_init_request(VirtIOBlock *s, VirtQueue *vq,
req->mr_next = NULL;
}
-void virtio_blk_free_request(VirtIOBlockReq *req)
-{
- g_free(req);
-}
-
void virtio_blk_req_complete(VirtIOBlockReq *req, unsigned char status)
{
VirtIOBlock *s = req->dev;
@@ -93,7 +88,7 @@ static int virtio_blk_handle_rw_error(VirtIOBlockReq *req, int error,
if (acct_failed) {
block_acct_failed(blk_get_stats(s->blk), &req->acct);
}
- virtio_blk_free_request(req);
+ g_free(req);
}
blk_error_action(s->blk, action, is_read, error);
@@ -136,7 +131,7 @@ static void virtio_blk_rw_complete(void *opaque, int ret)
virtio_blk_req_complete(req, VIRTIO_BLK_S_OK);
block_acct_done(blk_get_stats(s->blk), &req->acct);
- virtio_blk_free_request(req);
+ g_free(req);
}
}
@@ -151,7 +146,7 @@ static void virtio_blk_flush_complete(void *opaque, int ret)
virtio_blk_req_complete(req, VIRTIO_BLK_S_OK);
block_acct_done(blk_get_stats(s->blk), &req->acct);
- virtio_blk_free_request(req);
+ g_free(req);
}
static void virtio_blk_discard_write_zeroes_complete(void *opaque, int ret)
@@ -169,7 +164,7 @@ static void virtio_blk_discard_write_zeroes_complete(void *opaque, int ret)
if (is_write_zeroes) {
block_acct_done(blk_get_stats(s->blk), &req->acct);
}
- virtio_blk_free_request(req);
+ g_free(req);
}
static VirtIOBlockReq *virtio_blk_get_request(VirtIOBlock *s, VirtQueue *vq)
@@ -214,7 +209,7 @@ static void virtio_blk_handle_scsi(VirtIOBlockReq *req)
fail:
virtio_blk_req_complete(req, status);
- virtio_blk_free_request(req);
+ g_free(req);
}
static inline void submit_requests(VirtIOBlock *s, MultiReqBuffer *mrb,
@@ -612,7 +607,7 @@ static void virtio_blk_zone_report_complete(void *opaque, int ret)
out:
virtio_blk_req_complete(req, err_status);
- virtio_blk_free_request(req);
+ g_free(req);
g_free(data->zone_report_data.zones);
g_free(data);
}
@@ -661,7 +656,7 @@ static void virtio_blk_handle_zone_report(VirtIOBlockReq *req,
return;
out:
virtio_blk_req_complete(req, err_status);
- virtio_blk_free_request(req);
+ g_free(req);
}
static void virtio_blk_zone_mgmt_complete(void *opaque, int ret)
@@ -677,7 +672,7 @@ static void virtio_blk_zone_mgmt_complete(void *opaque, int ret)
}
virtio_blk_req_complete(req, err_status);
- virtio_blk_free_request(req);
+ g_free(req);
}
static int virtio_blk_handle_zone_mgmt(VirtIOBlockReq *req, BlockZoneOp op)
@@ -719,7 +714,7 @@ static int virtio_blk_handle_zone_mgmt(VirtIOBlockReq *req, BlockZoneOp op)
return 0;
out:
virtio_blk_req_complete(req, err_status);
- virtio_blk_free_request(req);
+ g_free(req);
return err_status;
}
@@ -750,7 +745,7 @@ static void virtio_blk_zone_append_complete(void *opaque, int ret)
out:
virtio_blk_req_complete(req, err_status);
- virtio_blk_free_request(req);
+ g_free(req);
g_free(data);
}
@@ -788,7 +783,7 @@ static int virtio_blk_handle_zone_append(VirtIOBlockReq *req,
out:
virtio_blk_req_complete(req, err_status);
- virtio_blk_free_request(req);
+ g_free(req);
return err_status;
}
@@ -855,7 +850,7 @@ static int virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb)
virtio_blk_req_complete(req, VIRTIO_BLK_S_IOERR);
block_acct_invalid(blk_get_stats(s->blk),
is_write ? BLOCK_ACCT_WRITE : BLOCK_ACCT_READ);
- virtio_blk_free_request(req);
+ g_free(req);
return 0;
}
@@ -911,7 +906,7 @@ static int virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb)
VIRTIO_BLK_ID_BYTES));
iov_from_buf(in_iov, in_num, 0, serial, size);
virtio_blk_req_complete(req, VIRTIO_BLK_S_OK);
- virtio_blk_free_request(req);
+ g_free(req);
break;
}
case VIRTIO_BLK_T_ZONE_APPEND & ~VIRTIO_BLK_T_OUT:
@@ -943,7 +938,7 @@ static int virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb)
if (unlikely(!(type & VIRTIO_BLK_T_OUT) ||
out_len > sizeof(dwz_hdr))) {
virtio_blk_req_complete(req, VIRTIO_BLK_S_UNSUPP);
- virtio_blk_free_request(req);
+ g_free(req);
return 0;
}
@@ -960,7 +955,7 @@ static int virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb)
is_write_zeroes);
if (err_status != VIRTIO_BLK_S_OK) {
virtio_blk_req_complete(req, err_status);
- virtio_blk_free_request(req);
+ g_free(req);
}
break;
@@ -975,7 +970,7 @@ static int virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb)
if (!vbk->handle_unknown_request ||
!vbk->handle_unknown_request(req, mrb, type)) {
virtio_blk_req_complete(req, VIRTIO_BLK_S_UNSUPP);
- virtio_blk_free_request(req);
+ g_free(req);
}
}
}
@@ -998,7 +993,7 @@ void virtio_blk_handle_vq(VirtIOBlock *s, VirtQueue *vq)
while ((req = virtio_blk_get_request(s, vq))) {
if (virtio_blk_handle_request(req, &mrb)) {
virtqueue_detach_element(req->vq, &req->elem, 0);
- virtio_blk_free_request(req);
+ g_free(req);
break;
}
}
@@ -1048,7 +1043,7 @@ static void virtio_blk_dma_restart_bh(void *opaque)
while (req) {
next = req->next;
virtqueue_detach_element(req->vq, &req->elem, 0);
- virtio_blk_free_request(req);
+ g_free(req);
req = next;
}
break;
@@ -1131,7 +1126,7 @@ static void virtio_blk_reset(VirtIODevice *vdev)
/* No other threads can access req->vq here */
virtqueue_detach_element(req->vq, &req->elem, 0);
- virtio_blk_free_request(req);
+ g_free(req);
}
}
diff --git a/hw/vmapple/virtio-blk.c b/hw/vmapple/virtio-blk.c
index 1652151ec9c..fee1cf0ecaf 100644
--- a/hw/vmapple/virtio-blk.c
+++ b/hw/vmapple/virtio-blk.c
@@ -58,7 +58,7 @@ static bool vmapple_virtio_blk_handle_unknown_request(VirtIOBlockReq *req,
qemu_log_mask(LOG_UNIMP, "%s: Barrier requests are currently no-ops\n",
__func__);
virtio_blk_req_complete(req, VIRTIO_BLK_S_OK);
- virtio_blk_free_request(req);
+ g_free(req);
return true;
default:
return false;
diff --git a/include/hw/virtio/virtio-blk.h b/include/hw/virtio/virtio-blk.h
index 28d5046ea6c..dcb2c89aed5 100644
--- a/include/hw/virtio/virtio-blk.h
+++ b/include/hw/virtio/virtio-blk.h
@@ -109,7 +109,6 @@ typedef struct VirtIOBlkClass {
} VirtIOBlkClass;
void virtio_blk_handle_vq(VirtIOBlock *s, VirtQueue *vq);
-void virtio_blk_free_request(VirtIOBlockReq *req);
void virtio_blk_req_complete(VirtIOBlockReq *req, unsigned char status);
#endif
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v5 15/15] hw/vmapple/vmapple: Add vmapple machine type
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
` (13 preceding siblings ...)
2024-10-29 20:58 ` [PATCH v5 14/15] hw/block/virtio-blk: Replaces request free function with g_free Phil Dennis-Jordan
@ 2024-10-29 20:58 ` Phil Dennis-Jordan
14 siblings, 0 replies; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-10-29 20:58 UTC (permalink / raw)
To: qemu-devel
Cc: agraf, phil, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, akihiko.odaki, qemu-arm, qemu-block, qemu-riscv,
Alexander Graf
From: Alexander Graf <graf@amazon.com>
Apple defines a new "vmapple" machine type as part of its proprietary
macOS Virtualization.Framework vmm. This machine type is similar to the
virt one, but with subtle differences in base devices, a few special
vmapple device additions and a vastly different boot chain.
This patch reimplements this machine type in QEMU. To use it, you
have to have a readily installed version of macOS for VMApple,
run on macOS with -accel hvf, pass the Virtualization.Framework
boot rom (AVPBooter) in via -bios, pass the aux and root volume as pflash
and pass aux and root volume as virtio drives. In addition, you also
need to find the machine UUID and pass that as -M vmapple,uuid= parameter:
$ qemu-system-aarch64 -accel hvf -M vmapple,uuid=0x1234 -m 4G \
-bios /System/Library/Frameworks/Virtualization.framework/Versions/A/Resources/AVPBooter.vmapple2.bin
-drive file=aux,if=pflash,format=raw \
-drive file=root,if=pflash,format=raw \
-drive file=aux,if=none,id=aux,format=raw \
-device vmapple-virtio-aux,drive=aux \
-drive file=root,if=none,id=root,format=raw \
-device vmapple-virtio-root,drive=root
With all these in place, you should be able to see macOS booting
successfully.
Known issues:
- Keyboard and mouse/tablet input is laggy. The reason for this is
either that macOS's XHCI driver is broken when the device/platform
does not support MSI/MSI-X, or there's some unfortunate interplay
with Qemu's XHCI implementation in this scenario.
- Currently only macOS 12 guests are supported. The boot process for
13+ will need further investigation and adjustment.
Signed-off-by: Alexander Graf <graf@amazon.com>
Co-authored-by: Phil Dennis-Jordan <phil@philjordan.eu>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---
v3:
* Rebased on latest upstream, updated affinity and NIC creation
API usage
* Included Apple-variant virtio-blk in build dependency
* Updated API usage for setting 'redist-region-count' array-typed property on GIC.
* Switched from virtio HID devices (for which macOS 12 does not contain drivers) to an XHCI USB controller and USB HID devices.
v4:
* Fixups for v4 changes to the other patches in the set.
* Corrected the assert macro to use
* Removed superfluous endian conversions corresponding to cfg's.
* Init error handling improvement.
* No need to select CPU type on TCG, as only HVF is supported.
* Machine type version bumped to 9.2
* #include order improved
v5:
* Fixed memory reservation for ecam alias region.
* Better error handling setting properties on devices.
* Simplified the machine ECID/UUID extraction script and actually created a
file for it rather than quoting its code in documentation.
MAINTAINERS | 1 +
contrib/vmapple/uuid.sh | 9 +
docs/system/arm/vmapple.rst | 60 ++++
docs/system/target-arm.rst | 1 +
hw/vmapple/Kconfig | 20 ++
hw/vmapple/meson.build | 1 +
hw/vmapple/vmapple.c | 659 ++++++++++++++++++++++++++++++++++++
7 files changed, 751 insertions(+)
create mode 100755 contrib/vmapple/uuid.sh
create mode 100644 docs/system/arm/vmapple.rst
create mode 100644 hw/vmapple/vmapple.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 0437568973a..c46d186bb05 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2740,6 +2740,7 @@ R: Phil Dennis-Jordan <phil@philjordan.eu>
S: Maintained
F: hw/vmapple/*
F: include/hw/vmapple/*
+F: docs/system/arm/vmapple.rst
Subsystems
----------
diff --git a/contrib/vmapple/uuid.sh b/contrib/vmapple/uuid.sh
new file mode 100755
index 00000000000..956e8c3afed
--- /dev/null
+++ b/contrib/vmapple/uuid.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+# Used for converting a guest provisioned using Virtualization.framework
+# for use with the QEMU 'vmapple' aarch64 machine type.
+#
+# Extracts the Machine UUID from Virtualization.framework VM JSON file.
+# (as produced by 'macosvm', passed as command line argument)
+
+plutil -extract machineId raw "$1" | base64 -d | plutil -extract ECID raw -
+
diff --git a/docs/system/arm/vmapple.rst b/docs/system/arm/vmapple.rst
new file mode 100644
index 00000000000..6a634fa4572
--- /dev/null
+++ b/docs/system/arm/vmapple.rst
@@ -0,0 +1,60 @@
+VMApple machine emulation
+========================================================================================
+
+VMApple is the device model that the macOS built-in hypervisor called "Virtualization.framework"
+exposes to Apple Silicon macOS guests. The "vmapple" machine model in QEMU implements the same
+device model, but does not use any code from Virtualization.Framework.
+
+Prerequisites
+-------------
+
+To run the vmapple machine model, you need to
+
+ * Run on Apple Silicon
+ * Run on macOS 12.0 or above
+ * Have an already installed copy of a Virtualization.Framework macOS 12 virtual machine. I will
+ assume that you installed it using the macosvm CLI.
+
+First, we need to extract the UUID from the virtual machine that you installed. You can do this
+by running the shell script in contrib/vmapple/uuid.sh on the macosvm.json file.
+
+.. code-block:: bash
+ :caption: uuid.sh script to extract the UUID from a macosvm.json file
+
+ $ contrib/vmapple/uuid.sh "path/to/macosvm.json"
+
+Now we also need to trim the aux partition. It contains metadata that we can just discard:
+
+.. code-block:: bash
+ :caption: Command to trim the aux file
+
+ $ dd if="aux.img" of="aux.img.trimmed" bs=$(( 0x4000 )) skip=1
+
+How to run
+----------
+
+Then, we can launch QEMU with the Virtualization.Framework pre-boot environment and the readily
+installed target disk images. I recommend to port forward the VM's ssh and vnc ports to the host
+to get better interactive access into the target system:
+
+.. code-block:: bash
+ :caption: Example execution command line
+
+ $ UUID=$(uuid.sh macosvm.json)
+ $ AVPBOOTER=/System/Library/Frameworks/Virtualization.framework/Resources/AVPBooter.vmapple2.bin
+ $ AUX=aux.img.trimmed
+ $ DISK=disk.img
+ $ qemu-system-aarch64 \
+ -serial mon:stdio \
+ -m 4G \
+ -accel hvf \
+ -M vmapple,uuid=$UUID \
+ -bios $AVPBOOTER \
+ -drive file="$AUX",if=pflash,format=raw \
+ -drive file="$DISK",if=pflash,format=raw \
+ -drive file="$AUX",if=none,id=aux,format=raw \
+ -drive file="$DISK",if=none,id=root,format=raw \
+ -device vmapple-virtio-aux,drive=aux \
+ -device vmapple-virtio-root,drive=root \
+ -net user,ipv6=off,hostfwd=tcp::2222-:22,hostfwd=tcp::5901-:5900 \
+ -net nic,model=virtio-net-pci \
diff --git a/docs/system/target-arm.rst b/docs/system/target-arm.rst
index 3c0a5848453..f2e0ac99537 100644
--- a/docs/system/target-arm.rst
+++ b/docs/system/target-arm.rst
@@ -102,6 +102,7 @@ undocumented; you can get a complete list by running
arm/stellaris
arm/stm32
arm/virt
+ arm/vmapple
arm/xenpvh
arm/xlnx-versal-virt
arm/xlnx-zynq
diff --git a/hw/vmapple/Kconfig b/hw/vmapple/Kconfig
index bcd1be63e3c..6a4c4a7fa2e 100644
--- a/hw/vmapple/Kconfig
+++ b/hw/vmapple/Kconfig
@@ -10,3 +10,23 @@ config VMAPPLE_CFG
config VMAPPLE_VIRTIO_BLK
bool
+config VMAPPLE
+ bool
+ depends on ARM
+ depends on HVF
+ default y if ARM
+ imply PCI_DEVICES
+ select ARM_GIC
+ select PLATFORM_BUS
+ select PCI_EXPRESS
+ select PCI_EXPRESS_GENERIC_BRIDGE
+ select PL011 # UART
+ select PL031 # RTC
+ select PL061 # GPIO
+ select GPIO_PWR
+ select PVPANIC_MMIO
+ select VMAPPLE_AES
+ select VMAPPLE_BDIF
+ select VMAPPLE_CFG
+ select MAC_PVG_MMIO
+ select VMAPPLE_VIRTIO_BLK
diff --git a/hw/vmapple/meson.build b/hw/vmapple/meson.build
index bf17cf906c9..e572f7d5602 100644
--- a/hw/vmapple/meson.build
+++ b/hw/vmapple/meson.build
@@ -2,3 +2,4 @@ system_ss.add(when: 'CONFIG_VMAPPLE_AES', if_true: files('aes.c'))
system_ss.add(when: 'CONFIG_VMAPPLE_BDIF', if_true: files('bdif.c'))
system_ss.add(when: 'CONFIG_VMAPPLE_CFG', if_true: files('cfg.c'))
system_ss.add(when: 'CONFIG_VMAPPLE_VIRTIO_BLK', if_true: files('virtio-blk.c'))
+specific_ss.add(when: 'CONFIG_VMAPPLE', if_true: files('vmapple.c'))
diff --git a/hw/vmapple/vmapple.c b/hw/vmapple/vmapple.c
new file mode 100644
index 00000000000..d8121b63c07
--- /dev/null
+++ b/hw/vmapple/vmapple.c
@@ -0,0 +1,659 @@
+/*
+ * VMApple machine emulation
+ *
+ * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * VMApple is the device model that the macOS built-in hypervisor called
+ * "Virtualization.framework" exposes to Apple Silicon macOS guests. The
+ * machine model in this file implements the same device model in QEMU, but
+ * does not use any code from Virtualization.Framework.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/bitops.h"
+#include "qemu/datadir.h"
+#include "qemu/error-report.h"
+#include "qemu/guest-random.h"
+#include "qemu/help-texts.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "qemu/option.h"
+#include "qemu/units.h"
+#include "monitor/qdev.h"
+#include "hw/boards.h"
+#include "hw/irq.h"
+#include "hw/loader.h"
+#include "hw/qdev-properties.h"
+#include "hw/sysbus.h"
+#include "hw/usb.h"
+#include "hw/arm/boot.h"
+#include "hw/arm/primecell.h"
+#include "hw/char/pl011.h"
+#include "hw/intc/arm_gic.h"
+#include "hw/intc/arm_gicv3_common.h"
+#include "hw/misc/pvpanic.h"
+#include "hw/pci-host/gpex.h"
+#include "hw/usb/xhci.h"
+#include "hw/virtio/virtio-pci.h"
+#include "hw/vmapple/vmapple.h"
+#include "net/net.h"
+#include "qapi/error.h"
+#include "qapi/qmp/qlist.h"
+#include "qapi/visitor.h"
+#include "qapi/qapi-visit-common.h"
+#include "standard-headers/linux/input.h"
+#include "sysemu/hvf.h"
+#include "sysemu/kvm.h"
+#include "sysemu/reset.h"
+#include "sysemu/runstate.h"
+#include "sysemu/sysemu.h"
+#include "target/arm/internals.h"
+#include "target/arm/kvm_arm.h"
+
+struct VMAppleMachineClass {
+ MachineClass parent;
+};
+
+struct VMAppleMachineState {
+ MachineState parent;
+
+ Notifier machine_done;
+ struct arm_boot_info bootinfo;
+ MemMapEntry *memmap;
+ const int *irqmap;
+ DeviceState *gic;
+ DeviceState *cfg;
+ Notifier powerdown_notifier;
+ PCIBus *bus;
+ MemoryRegion fw_mr;
+ MemoryRegion ecam_alias;
+ uint64_t uuid;
+};
+
+#define DEFINE_VMAPPLE_MACHINE_LATEST(major, minor, latest) \
+ static void vmapple##major##_##minor##_class_init(ObjectClass *oc, \
+ void *data) \
+ { \
+ MachineClass *mc = MACHINE_CLASS(oc); \
+ vmapple_machine_##major##_##minor##_options(mc); \
+ mc->desc = "QEMU " # major "." # minor " Apple Virtual Machine"; \
+ if (latest) { \
+ mc->alias = "vmapple"; \
+ } \
+ } \
+ static const TypeInfo machvmapple##major##_##minor##_info = { \
+ .name = MACHINE_TYPE_NAME("vmapple-" # major "." # minor), \
+ .parent = TYPE_VMAPPLE_MACHINE, \
+ .class_init = vmapple##major##_##minor##_class_init, \
+ }; \
+ static void machvmapple_machine_##major##_##minor##_init(void) \
+ { \
+ type_register_static(&machvmapple##major##_##minor##_info); \
+ } \
+ type_init(machvmapple_machine_##major##_##minor##_init);
+
+#define DEFINE_VMAPPLE_MACHINE_AS_LATEST(major, minor) \
+ DEFINE_VMAPPLE_MACHINE_LATEST(major, minor, true)
+#define DEFINE_VMAPPLE_MACHINE(major, minor) \
+ DEFINE_VMAPPLE_MACHINE_LATEST(major, minor, false)
+
+#define TYPE_VMAPPLE_MACHINE MACHINE_TYPE_NAME("vmapple")
+OBJECT_DECLARE_TYPE(VMAppleMachineState, VMAppleMachineClass, VMAPPLE_MACHINE)
+
+/* Number of external interrupt lines to configure the GIC with */
+#define NUM_IRQS 256
+
+enum {
+ VMAPPLE_FIRMWARE,
+ VMAPPLE_CONFIG,
+ VMAPPLE_MEM,
+ VMAPPLE_GIC_DIST,
+ VMAPPLE_GIC_REDIST,
+ VMAPPLE_UART,
+ VMAPPLE_RTC,
+ VMAPPLE_PCIE,
+ VMAPPLE_PCIE_MMIO,
+ VMAPPLE_PCIE_ECAM,
+ VMAPPLE_GPIO,
+ VMAPPLE_PVPANIC,
+ VMAPPLE_APV_GFX,
+ VMAPPLE_APV_IOSFC,
+ VMAPPLE_AES_1,
+ VMAPPLE_AES_2,
+ VMAPPLE_BDOOR,
+ VMAPPLE_MEMMAP_LAST,
+};
+
+static MemMapEntry memmap[] = {
+ [VMAPPLE_FIRMWARE] = { 0x00100000, 0x00100000 },
+ [VMAPPLE_CONFIG] = { 0x00400000, 0x00010000 },
+
+ [VMAPPLE_GIC_DIST] = { 0x10000000, 0x00010000 },
+ [VMAPPLE_GIC_REDIST] = { 0x10010000, 0x00400000 },
+
+ [VMAPPLE_UART] = { 0x20010000, 0x00010000 },
+ [VMAPPLE_RTC] = { 0x20050000, 0x00001000 },
+ [VMAPPLE_GPIO] = { 0x20060000, 0x00001000 },
+ [VMAPPLE_PVPANIC] = { 0x20070000, 0x00000002 },
+ [VMAPPLE_BDOOR] = { 0x30000000, 0x00200000 },
+ [VMAPPLE_APV_GFX] = { 0x30200000, 0x00010000 },
+ [VMAPPLE_APV_IOSFC] = { 0x30210000, 0x00010000 },
+ [VMAPPLE_AES_1] = { 0x30220000, 0x00004000 },
+ [VMAPPLE_AES_2] = { 0x30230000, 0x00004000 },
+ [VMAPPLE_PCIE_ECAM] = { 0x40000000, 0x10000000 },
+ [VMAPPLE_PCIE_MMIO] = { 0x50000000, 0x1fff0000 },
+
+ /* Actual RAM size depends on configuration */
+ [VMAPPLE_MEM] = { 0x70000000ULL, GiB},
+};
+
+static const int irqmap[] = {
+ [VMAPPLE_UART] = 1,
+ [VMAPPLE_RTC] = 2,
+ [VMAPPLE_GPIO] = 0x5,
+ [VMAPPLE_APV_IOSFC] = 0x10,
+ [VMAPPLE_APV_GFX] = 0x11,
+ [VMAPPLE_AES_1] = 0x12,
+ [VMAPPLE_PCIE] = 0x20,
+};
+
+#define GPEX_NUM_IRQS 16
+
+static void create_bdif(VMAppleMachineState *vms, MemoryRegion *mem)
+{
+ DeviceState *bdif;
+ SysBusDevice *bdif_sb;
+ DriveInfo *di_aux = drive_get(IF_PFLASH, 0, 0);
+ DriveInfo *di_root = drive_get(IF_PFLASH, 0, 1);
+
+ if (!di_aux) {
+ error_report("No AUX device. Please specify one as pflash drive.");
+ exit(1);
+ }
+
+ if (!di_root) {
+ /* Fall back to the first IF_VIRTIO device as root device */
+ di_root = drive_get(IF_VIRTIO, 0, 0);
+ }
+
+ if (!di_root) {
+ error_report("No root device. Please specify one as virtio drive.");
+ exit(1);
+ }
+
+ /* PV backdoor device */
+ bdif = qdev_new(TYPE_VMAPPLE_BDIF);
+ bdif_sb = SYS_BUS_DEVICE(bdif);
+ sysbus_mmio_map(bdif_sb, 0, vms->memmap[VMAPPLE_BDOOR].base);
+
+ qdev_prop_set_drive(DEVICE(bdif), "aux", blk_by_legacy_dinfo(di_aux));
+ qdev_prop_set_drive(DEVICE(bdif), "root", blk_by_legacy_dinfo(di_root));
+
+ sysbus_realize_and_unref(bdif_sb, &error_fatal);
+}
+
+static void create_pvpanic(VMAppleMachineState *vms, MemoryRegion *mem)
+{
+ SysBusDevice *cfg;
+
+ vms->cfg = qdev_new(TYPE_PVPANIC_MMIO_DEVICE);
+ cfg = SYS_BUS_DEVICE(vms->cfg);
+ sysbus_mmio_map(cfg, 0, vms->memmap[VMAPPLE_PVPANIC].base);
+
+ sysbus_realize_and_unref(cfg, &error_fatal);
+}
+
+static void create_cfg(VMAppleMachineState *vms, MemoryRegion *mem)
+{
+ SysBusDevice *cfg;
+ MachineState *machine = MACHINE(vms);
+ uint32_t rnd = 1;
+
+ vms->cfg = qdev_new(TYPE_VMAPPLE_CFG);
+ cfg = SYS_BUS_DEVICE(vms->cfg);
+ sysbus_mmio_map(cfg, 0, vms->memmap[VMAPPLE_CONFIG].base);
+
+ qemu_guest_getrandom_nofail(&rnd, sizeof(rnd));
+
+ qdev_prop_set_uint32(vms->cfg, "nr-cpus", machine->smp.cpus);
+ qdev_prop_set_uint64(vms->cfg, "ecid", vms->uuid);
+ qdev_prop_set_uint64(vms->cfg, "ram-size", machine->ram_size);
+ qdev_prop_set_uint32(vms->cfg, "rnd", rnd);
+
+ sysbus_realize_and_unref(cfg, &error_fatal);
+}
+
+static void create_gfx(VMAppleMachineState *vms, MemoryRegion *mem)
+{
+ int irq_gfx = vms->irqmap[VMAPPLE_APV_GFX];
+ int irq_iosfc = vms->irqmap[VMAPPLE_APV_IOSFC];
+ SysBusDevice *gfx;
+
+ gfx = SYS_BUS_DEVICE(qdev_new("apple-gfx-mmio"));
+ sysbus_mmio_map(gfx, 0, vms->memmap[VMAPPLE_APV_GFX].base);
+ sysbus_mmio_map(gfx, 1, vms->memmap[VMAPPLE_APV_IOSFC].base);
+ sysbus_connect_irq(gfx, 0, qdev_get_gpio_in(vms->gic, irq_gfx));
+ sysbus_connect_irq(gfx, 1, qdev_get_gpio_in(vms->gic, irq_iosfc));
+ sysbus_realize_and_unref(gfx, &error_fatal);
+}
+
+static void create_aes(VMAppleMachineState *vms, MemoryRegion *mem)
+{
+ int irq = vms->irqmap[VMAPPLE_AES_1];
+ SysBusDevice *aes;
+
+ aes = SYS_BUS_DEVICE(qdev_new(TYPE_APPLE_AES));
+ sysbus_mmio_map(aes, 0, vms->memmap[VMAPPLE_AES_1].base);
+ sysbus_mmio_map(aes, 1, vms->memmap[VMAPPLE_AES_2].base);
+ sysbus_connect_irq(aes, 0, qdev_get_gpio_in(vms->gic, irq));
+ sysbus_realize_and_unref(aes, &error_fatal);
+}
+
+static inline int arm_gic_ppi_index(int cpu_nr, int ppi_index)
+{
+ return NUM_IRQS + cpu_nr * GIC_INTERNAL + ppi_index;
+}
+
+static void create_gic(VMAppleMachineState *vms, MemoryRegion *mem)
+{
+ MachineState *ms = MACHINE(vms);
+ /* We create a standalone GIC */
+ SysBusDevice *gicbusdev;
+ QList *redist_region_count;
+ int i;
+ unsigned int smp_cpus = ms->smp.cpus;
+
+ vms->gic = qdev_new(gicv3_class_name());
+ qdev_prop_set_uint32(vms->gic, "revision", 3);
+ qdev_prop_set_uint32(vms->gic, "num-cpu", smp_cpus);
+ /*
+ * Note that the num-irq property counts both internal and external
+ * interrupts; there are always 32 of the former (mandated by GIC spec).
+ */
+ qdev_prop_set_uint32(vms->gic, "num-irq", NUM_IRQS + 32);
+
+ uint32_t redist0_capacity =
+ vms->memmap[VMAPPLE_GIC_REDIST].size / GICV3_REDIST_SIZE;
+ uint32_t redist0_count = MIN(smp_cpus, redist0_capacity);
+
+ redist_region_count = qlist_new();
+ qlist_append_int(redist_region_count, redist0_count);
+ qdev_prop_set_array(vms->gic, "redist-region-count", redist_region_count);
+
+ gicbusdev = SYS_BUS_DEVICE(vms->gic);
+ sysbus_realize_and_unref(gicbusdev, &error_fatal);
+ sysbus_mmio_map(gicbusdev, 0, vms->memmap[VMAPPLE_GIC_DIST].base);
+ sysbus_mmio_map(gicbusdev, 1, vms->memmap[VMAPPLE_GIC_REDIST].base);
+
+ /*
+ * Wire the outputs from each CPU's generic timer and the GICv3
+ * maintenance interrupt signal to the appropriate GIC PPI inputs,
+ * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs.
+ */
+ for (i = 0; i < smp_cpus; i++) {
+ DeviceState *cpudev = DEVICE(qemu_get_cpu(i));
+
+ /* Map the virt timer to PPI 27 */
+ qdev_connect_gpio_out(cpudev, GTIMER_VIRT,
+ qdev_get_gpio_in(vms->gic,
+ arm_gic_ppi_index(i, 27)));
+
+ /* Map the GIC IRQ and FIQ lines to CPU */
+ sysbus_connect_irq(gicbusdev, i, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
+ sysbus_connect_irq(gicbusdev, i + smp_cpus,
+ qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
+ }
+}
+
+static void create_uart(const VMAppleMachineState *vms, int uart,
+ MemoryRegion *mem, Chardev *chr)
+{
+ hwaddr base = vms->memmap[uart].base;
+ int irq = vms->irqmap[uart];
+ DeviceState *dev = qdev_new(TYPE_PL011);
+ SysBusDevice *s = SYS_BUS_DEVICE(dev);
+
+ qdev_prop_set_chr(dev, "chardev", chr);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+ memory_region_add_subregion(mem, base,
+ sysbus_mmio_get_region(s, 0));
+ sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq));
+}
+
+static void create_rtc(const VMAppleMachineState *vms)
+{
+ hwaddr base = vms->memmap[VMAPPLE_RTC].base;
+ int irq = vms->irqmap[VMAPPLE_RTC];
+
+ sysbus_create_simple("pl031", base, qdev_get_gpio_in(vms->gic, irq));
+}
+
+static DeviceState *gpio_key_dev;
+static void vmapple_powerdown_req(Notifier *n, void *opaque)
+{
+ /* use gpio Pin 3 for power button event */
+ qemu_set_irq(qdev_get_gpio_in(gpio_key_dev, 0), 1);
+}
+
+static void create_gpio_devices(const VMAppleMachineState *vms, int gpio,
+ MemoryRegion *mem)
+{
+ DeviceState *pl061_dev;
+ hwaddr base = vms->memmap[gpio].base;
+ int irq = vms->irqmap[gpio];
+ SysBusDevice *s;
+
+ pl061_dev = qdev_new("pl061");
+ /* Pull lines down to 0 if not driven by the PL061 */
+ qdev_prop_set_uint32(pl061_dev, "pullups", 0);
+ qdev_prop_set_uint32(pl061_dev, "pulldowns", 0xff);
+ s = SYS_BUS_DEVICE(pl061_dev);
+ sysbus_realize_and_unref(s, &error_fatal);
+ memory_region_add_subregion(mem, base, sysbus_mmio_get_region(s, 0));
+ sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq));
+ gpio_key_dev = sysbus_create_simple("gpio-key", -1,
+ qdev_get_gpio_in(pl061_dev, 3));
+}
+
+static void vmapple_firmware_init(VMAppleMachineState *vms,
+ MemoryRegion *sysmem)
+{
+ hwaddr size = vms->memmap[VMAPPLE_FIRMWARE].size;
+ hwaddr base = vms->memmap[VMAPPLE_FIRMWARE].base;
+ const char *bios_name;
+ int image_size;
+ char *fname;
+
+ bios_name = MACHINE(vms)->firmware;
+ if (!bios_name) {
+ error_report("No firmware specified");
+ exit(1);
+ }
+
+ fname = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
+ if (!fname) {
+ error_report("Could not find ROM image '%s'", bios_name);
+ exit(1);
+ }
+
+ memory_region_init_ram(&vms->fw_mr, NULL, "firmware", size, &error_fatal);
+ image_size = load_image_mr(fname, &vms->fw_mr);
+
+ g_free(fname);
+ if (image_size < 0) {
+ error_report("Could not load ROM image '%s'", bios_name);
+ exit(1);
+ }
+
+ memory_region_add_subregion(get_system_memory(), base, &vms->fw_mr);
+}
+
+static void create_pcie(VMAppleMachineState *vms)
+{
+ hwaddr base_mmio = vms->memmap[VMAPPLE_PCIE_MMIO].base;
+ hwaddr size_mmio = vms->memmap[VMAPPLE_PCIE_MMIO].size;
+ hwaddr base_ecam = vms->memmap[VMAPPLE_PCIE_ECAM].base;
+ hwaddr size_ecam = vms->memmap[VMAPPLE_PCIE_ECAM].size;
+ int irq = vms->irqmap[VMAPPLE_PCIE];
+ MemoryRegion *mmio_alias;
+ MemoryRegion *mmio_reg;
+ MemoryRegion *ecam_reg;
+ DeviceState *dev;
+ int i;
+ PCIHostState *pci;
+ DeviceState *usb_controller;
+ USBBus *usb_bus;
+
+ dev = qdev_new(TYPE_GPEX_HOST);
+ qdev_prop_set_uint32(dev, "num-irqs", GPEX_NUM_IRQS);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+
+ /* Map only the first size_ecam bytes of ECAM space */
+ ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
+ memory_region_init_alias(&vms->ecam_alias, OBJECT(dev), "pcie-ecam",
+ ecam_reg, 0, size_ecam);
+ memory_region_add_subregion(get_system_memory(), base_ecam,
+ &vms->ecam_alias);
+
+ /*
+ * Map the MMIO window from [0x50000000-0x7fff0000] in PCI space into
+ * system address space at [0x50000000-0x7fff0000].
+ */
+ mmio_alias = g_new0(MemoryRegion, 1);
+ mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1);
+ memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio",
+ mmio_reg, base_mmio, size_mmio);
+ memory_region_add_subregion(get_system_memory(), base_mmio, mmio_alias);
+
+ for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), i,
+ qdev_get_gpio_in(vms->gic, irq + i));
+ gpex_set_irq_num(GPEX_HOST(dev), i, irq + i);
+ }
+
+ pci = PCI_HOST_BRIDGE(dev);
+ vms->bus = pci->bus;
+ g_assert(vms->bus);
+
+ while ((dev = qemu_create_nic_device("virtio-net-pci", true, NULL))) {
+ qdev_realize_and_unref(dev, BUS(vms->bus), &error_fatal);
+ }
+
+ usb_controller = qdev_new(TYPE_QEMU_XHCI);
+ qdev_realize_and_unref(usb_controller, BUS(pci->bus), &error_fatal);
+
+ usb_bus = USB_BUS(object_resolve_type_unambiguous(TYPE_USB_BUS,
+ &error_fatal));
+ usb_create_simple(usb_bus, "usb-kbd");
+ usb_create_simple(usb_bus, "usb-tablet");
+}
+
+static void vmapple_reset(void *opaque)
+{
+ VMAppleMachineState *vms = opaque;
+ hwaddr base = vms->memmap[VMAPPLE_FIRMWARE].base;
+
+ cpu_set_pc(first_cpu, base);
+}
+
+static void mach_vmapple_init(MachineState *machine)
+{
+ VMAppleMachineState *vms = VMAPPLE_MACHINE(machine);
+ MachineClass *mc = MACHINE_GET_CLASS(machine);
+ const CPUArchIdList *possible_cpus;
+ MemoryRegion *sysmem = get_system_memory();
+ int n;
+ unsigned int smp_cpus = machine->smp.cpus;
+ unsigned int max_cpus = machine->smp.max_cpus;
+
+ vms->memmap = memmap;
+ machine->usb = true;
+
+ possible_cpus = mc->possible_cpu_arch_ids(machine);
+ assert(possible_cpus->len == max_cpus);
+ for (n = 0; n < possible_cpus->len; n++) {
+ Object *cpu;
+ CPUState *cs;
+
+ if (n >= smp_cpus) {
+ break;
+ }
+
+ cpu = object_new(possible_cpus->cpus[n].type);
+ object_property_set_int(cpu, "mp-affinity",
+ possible_cpus->cpus[n].arch_id, &error_fatal);
+
+ cs = CPU(cpu);
+ cs->cpu_index = n;
+
+ numa_cpu_pre_plug(&possible_cpus->cpus[cs->cpu_index], DEVICE(cpu),
+ &error_fatal);
+
+ if (object_property_find(cpu, "has_el3")) {
+ object_property_set_bool(cpu, "has_el3", false, &error_fatal);
+ }
+ if (object_property_find(cpu, "has_el2")) {
+ object_property_set_bool(cpu, "has_el2", false, &error_fatal);
+ }
+ object_property_set_int(cpu, "psci-conduit", QEMU_PSCI_CONDUIT_HVC,
+ NULL);
+
+ /* Secondary CPUs start in PSCI powered-down state */
+ if (n > 0) {
+ object_property_set_bool(cpu, "start-powered-off", true,
+ &error_fatal);
+ }
+
+ object_property_set_link(cpu, "memory", OBJECT(sysmem), &error_abort);
+ qdev_realize(DEVICE(cpu), NULL, &error_fatal);
+ object_unref(cpu);
+ }
+
+ memory_region_add_subregion(sysmem, vms->memmap[VMAPPLE_MEM].base,
+ machine->ram);
+
+ create_gic(vms, sysmem);
+ create_bdif(vms, sysmem);
+ create_pvpanic(vms, sysmem);
+ create_aes(vms, sysmem);
+ create_gfx(vms, sysmem);
+ create_uart(vms, VMAPPLE_UART, sysmem, serial_hd(0));
+ create_rtc(vms);
+ create_pcie(vms);
+
+ create_gpio_devices(vms, VMAPPLE_GPIO, sysmem);
+
+ vmapple_firmware_init(vms, sysmem);
+ create_cfg(vms, sysmem);
+
+ /* connect powerdown request */
+ vms->powerdown_notifier.notify = vmapple_powerdown_req;
+ qemu_register_powerdown_notifier(&vms->powerdown_notifier);
+
+ vms->bootinfo.ram_size = machine->ram_size;
+ vms->bootinfo.board_id = -1;
+ vms->bootinfo.loader_start = vms->memmap[VMAPPLE_MEM].base;
+ vms->bootinfo.skip_dtb_autoload = true;
+ vms->bootinfo.firmware_loaded = true;
+ arm_load_kernel(ARM_CPU(first_cpu), machine, &vms->bootinfo);
+
+ qemu_register_reset(vmapple_reset, vms);
+}
+
+static CpuInstanceProperties
+vmapple_cpu_index_to_props(MachineState *ms, unsigned cpu_index)
+{
+ MachineClass *mc = MACHINE_GET_CLASS(ms);
+ const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
+
+ assert(cpu_index < possible_cpus->len);
+ return possible_cpus->cpus[cpu_index].props;
+}
+
+
+static int64_t vmapple_get_default_cpu_node_id(const MachineState *ms, int idx)
+{
+ return idx % ms->numa_state->num_nodes;
+}
+
+static const CPUArchIdList *vmapple_possible_cpu_arch_ids(MachineState *ms)
+{
+ int n;
+ unsigned int max_cpus = ms->smp.max_cpus;
+
+ if (ms->possible_cpus) {
+ assert(ms->possible_cpus->len == max_cpus);
+ return ms->possible_cpus;
+ }
+
+ ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
+ sizeof(CPUArchId) * max_cpus);
+ ms->possible_cpus->len = max_cpus;
+ for (n = 0; n < ms->possible_cpus->len; n++) {
+ ms->possible_cpus->cpus[n].type = ms->cpu_type;
+ ms->possible_cpus->cpus[n].arch_id =
+ arm_build_mp_affinity(n, GICV3_TARGETLIST_BITS);
+ ms->possible_cpus->cpus[n].props.has_thread_id = true;
+ ms->possible_cpus->cpus[n].props.thread_id = n;
+ }
+ return ms->possible_cpus;
+}
+
+static void vmapple_get_uuid(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ VMAppleMachineState *vms = VMAPPLE_MACHINE(obj);
+
+ visit_type_uint64(v, name, &vms->uuid, errp);
+}
+
+static void vmapple_set_uuid(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ VMAppleMachineState *vms = VMAPPLE_MACHINE(obj);
+ Error *error = NULL;
+
+ visit_type_uint64(v, name, &vms->uuid, &error);
+ if (error) {
+ error_propagate(errp, error);
+ return;
+ }
+}
+
+static void vmapple_machine_class_init(ObjectClass *oc, void *data)
+{
+ MachineClass *mc = MACHINE_CLASS(oc);
+
+ mc->init = mach_vmapple_init;
+ mc->max_cpus = 32;
+ mc->block_default_type = IF_VIRTIO;
+ mc->no_cdrom = 1;
+ mc->pci_allow_0_address = true;
+ mc->minimum_page_bits = 12;
+ mc->possible_cpu_arch_ids = vmapple_possible_cpu_arch_ids;
+ mc->cpu_index_to_instance_props = vmapple_cpu_index_to_props;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("host");
+ mc->get_default_cpu_node_id = vmapple_get_default_cpu_node_id;
+ mc->default_ram_id = "mach-vmapple.ram";
+
+ object_register_sugar_prop(TYPE_VIRTIO_PCI, "disable-legacy",
+ "on", true);
+
+ object_class_property_add(oc, "uuid", "uint64", vmapple_get_uuid,
+ vmapple_set_uuid, NULL, NULL);
+ object_class_property_set_description(oc, "uuid", "Machine UUID (SDOM)");
+}
+
+static void vmapple_instance_init(Object *obj)
+{
+ VMAppleMachineState *vms = VMAPPLE_MACHINE(obj);
+
+ vms->irqmap = irqmap;
+}
+
+static const TypeInfo vmapple_machine_info = {
+ .name = TYPE_VMAPPLE_MACHINE,
+ .parent = TYPE_MACHINE,
+ .abstract = true,
+ .instance_size = sizeof(VMAppleMachineState),
+ .class_size = sizeof(VMAppleMachineClass),
+ .class_init = vmapple_machine_class_init,
+ .instance_init = vmapple_instance_init,
+};
+
+static void machvmapple_machine_init(void)
+{
+ type_register_static(&vmapple_machine_info);
+}
+type_init(machvmapple_machine_init);
+
+static void vmapple_machine_9_2_options(MachineClass *mc)
+{
+}
+DEFINE_VMAPPLE_MACHINE_AS_LATEST(9, 2)
+
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* Re: [PATCH v5 01/15] ui & main loop: Redesign of system-specific main thread event handling
2024-10-29 20:58 ` [PATCH v5 01/15] ui & main loop: Redesign of system-specific main thread event handling Phil Dennis-Jordan
@ 2024-10-31 7:52 ` Akihiko Odaki
0 siblings, 0 replies; 20+ messages in thread
From: Akihiko Odaki @ 2024-10-31 7:52 UTC (permalink / raw)
To: Phil Dennis-Jordan, qemu-devel
Cc: agraf, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, qemu-arm, qemu-block, qemu-riscv
On 2024/10/30 5:58, Phil Dennis-Jordan wrote:
> macOS's Cocoa event handling must be done on the initial (main) thread
> of the process. Furthermore, if library or application code uses
> libdispatch, the main dispatch queue must be handling events on the main
> thread as well.
>
> So far, this has affected Qemu in both the Cocoa and SDL UIs, although
> in different ways: the Cocoa UI replaces the default qemu_main function
> with one that spins Qemu's internal main event loop off onto a
> background thread. SDL (which uses Cocoa internally) on the other hand
> uses a polling approach within Qemu's main event loop. Events are
> polled during the SDL UI's dpy_refresh callback, which happens to run
> on the main thread by default.
>
> As UIs are mutually exclusive, this works OK as long as nothing else
> needs platform-native event handling. In the next patch, a new device is
> introduced based on the ParavirtualizedGraphics.framework in macOS.
> This uses libdispatch internally, and only works when events are being
> handled on the main runloop. With the current system, it works when
> using either the Cocoa or the SDL UI. However, it does not when running
> headless. Moreover, any attempt to install a similar scheme to the
> Cocoa UI's main thread replacement fails when combined with the SDL
> UI.
>
> This change tidies up main thread management to be more flexible.
>
> * The qemu_main global function pointer is a custom function for the
> main thread, and it may now be NULL. When it is, the main thread
> runs the main Qemu loop. This represents the traditional setup.
> * When non-null, spawning the main Qemu event loop on a separate
> thread is now done centrally rather than inside the Cocoa UI code.
> * For most platforms, qemu_main is indeed NULL by default, but on
> Darwin, it defaults to a function that runs the CFRunLoop.
> * The Cocoa UI sets qemu_main to a function which runs the
> NSApplication event handling runloop, as is usual for a Cocoa app.
> * The SDL UI overrides the qemu_main function to NULL, thus
> specifying that Qemu's main loop must run on the main
> thread.
> * For other UIs, or in the absence of UIs, the platform's default
> behaviour is followed.
>
> This means that on macOS, the platform's runloop events are always
> handled, regardless of chosen UI. The new PV graphics device will
> thus work in all configurations. There is no functional change on other
> operating systems.
>
> Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
> ---
>
> v5:
>
> * Simplified the way of setting/clearing the main loop by going back
> to setting qemu_main directly, but narrowing the scope of what it
> needs to do, and it can now be NULL.
>
> include/qemu-main.h | 3 +--
> include/qemu/typedefs.h | 1 +
> system/main.c | 56 +++++++++++++++++++++++++++++++++++----
> ui/cocoa.m | 58 +++++++++++------------------------------
> ui/sdl2.c | 4 +++
> 5 files changed, 72 insertions(+), 50 deletions(-)
>
> diff --git a/include/qemu-main.h b/include/qemu-main.h
> index 940960a7dbc..4bd0d667edc 100644
> --- a/include/qemu-main.h
> +++ b/include/qemu-main.h
> @@ -5,7 +5,6 @@
> #ifndef QEMU_MAIN_H
> #define QEMU_MAIN_H
>
> -int qemu_default_main(void);
> -extern int (*qemu_main)(void);
> +extern qemu_main_fn qemu_main;
>
> #endif /* QEMU_MAIN_H */
> diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
> index 3d84efcac47..b02cfe1f328 100644
> --- a/include/qemu/typedefs.h
> +++ b/include/qemu/typedefs.h
> @@ -131,5 +131,6 @@ typedef struct IRQState *qemu_irq;
> * Function types
> */
> typedef void (*qemu_irq_handler)(void *opaque, int n, int level);
> +typedef int (*qemu_main_fn)(void);
>
> #endif /* QEMU_TYPEDEFS_H */
> diff --git a/system/main.c b/system/main.c
> index 9b91d21ea8c..8c90b8d2ddf 100644
> --- a/system/main.c
> +++ b/system/main.c
> @@ -24,13 +24,14 @@
>
> #include "qemu/osdep.h"
> #include "qemu-main.h"
> +#include "qemu/main-loop.h"
> #include "sysemu/sysemu.h"
>
> -#ifdef CONFIG_SDL
> -#include <SDL.h>
> +#ifdef CONFIG_DARWIN
> +#include <CoreFoundation/CoreFoundation.h>
> #endif
>
> -int qemu_default_main(void)
> +static int qemu_default_main(void)
> {
> int status;
>
> @@ -40,10 +41,55 @@ int qemu_default_main(void)
> return status;
> }
>
> -int (*qemu_main)(void) = qemu_default_main;
> +/*
> + * Various macOS system libraries, including the Cocoa UI and anything using
> + * libdispatch, such as ParavirtualizedGraphics.framework, requires that the
> + * main runloop, on the main (initial) thread be running or at least regularly
> + * polled for events. A special mode is therefore supported, where the QEMU
> + * main loop runs on a separate thread and the main thread handles the
> + * CF/Cocoa runloop.
> + */
> +
> +static void *call_qemu_default_main(void *opaque)
> +{
> + int status;
> +
> + bql_lock();
> + status = qemu_default_main();
> + bql_unlock();
> +
> + exit(status);
> +}
> +
> +static void qemu_run_default_main_on_new_thread(void)
> +{
> + QemuThread thread;
> +
> + qemu_thread_create(&thread, "qemu_main", call_qemu_default_main,
> + NULL, QEMU_THREAD_DETACHED);
This function only contains two statements and I think is better to be
merged into main().
> +}
> +
> +
> +#ifdef CONFIG_DARWIN
> +static int os_darwin_cfrunloop_main(void)
> +{
> + CFRunLoopRun();
> + abort();
> +}
> +
> +qemu_main_fn qemu_main = os_darwin_cfrunloop_main;
> +#else
> +qemu_main_fn qemu_main;
> +#endif
>
> int main(int argc, char **argv)
> {
> qemu_init(argc, argv);
> - return qemu_main();
> + if (qemu_main) {
> + qemu_run_default_main_on_new_thread();
> + bql_unlock();
> + return qemu_main();
> + } else {
> + qemu_default_main();
> + }
> }
> diff --git a/ui/cocoa.m b/ui/cocoa.m
> index 4c2dd335323..a1474d473a6 100644
> --- a/ui/cocoa.m
> +++ b/ui/cocoa.m
> @@ -73,6 +73,8 @@
> int height;
> } QEMUScreen;
>
> +@class QemuCocoaPasteboardTypeOwner;
> +
> static void cocoa_update(DisplayChangeListener *dcl,
> int x, int y, int w, int h);
>
> @@ -107,6 +109,7 @@ static void cocoa_switch(DisplayChangeListener *dcl,
> static NSInteger cbchangecount = -1;
> static QemuClipboardInfo *cbinfo;
> static QemuEvent cbevent;
> +static QemuCocoaPasteboardTypeOwner *cbowner;
>
> // Utility functions to run specified code block with the BQL held
> typedef void (^CodeBlock)(void);
> @@ -1321,8 +1324,10 @@ - (void) dealloc
> {
> COCOA_DEBUG("QemuCocoaAppController: dealloc\n");
>
> - if (cocoaView)
> - [cocoaView release];
> + [cocoaView release];
> + [cbowner release];
> + cbowner = nil;
> +
> [super dealloc];
> }
>
> @@ -1938,8 +1943,6 @@ - (void)pasteboard:(NSPasteboard *)sender provideDataForType:(NSPasteboardType)t
>
> @end
>
> -static QemuCocoaPasteboardTypeOwner *cbowner;
> -
> static void cocoa_clipboard_notify(Notifier *notifier, void *data);
> static void cocoa_clipboard_request(QemuClipboardInfo *info,
> QemuClipboardType type);
> @@ -2002,43 +2005,8 @@ static void cocoa_clipboard_request(QemuClipboardInfo *info,
> }
> }
>
> -/*
> - * The startup process for the OSX/Cocoa UI is complicated, because
> - * OSX insists that the UI runs on the initial main thread, and so we
> - * need to start a second thread which runs the qemu_default_main():
> - * in main():
> - * in cocoa_display_init():
> - * assign cocoa_main to qemu_main
> - * create application, menus, etc
> - * in cocoa_main():
> - * create qemu-main thread
> - * enter OSX run loop
> - */
> -
> -static void *call_qemu_main(void *opaque)
> -{
> - int status;
> -
> - COCOA_DEBUG("Second thread: calling qemu_default_main()\n");
> - bql_lock();
> - status = qemu_default_main();
> - bql_unlock();
> - COCOA_DEBUG("Second thread: qemu_default_main() returned, exiting\n");
> - [cbowner release];
> - exit(status);
> -}
> -
> static int cocoa_main(void)
> {
> - QemuThread thread;
> -
> - COCOA_DEBUG("Entered %s()\n", __func__);
> -
> - bql_unlock();
> - qemu_thread_create(&thread, "qemu_main", call_qemu_main,
> - NULL, QEMU_THREAD_DETACHED);
> -
> - // Start the main event loop
> COCOA_DEBUG("Main thread: entering OSX run loop\n");
> [NSApp run];
> COCOA_DEBUG("Main thread: left OSX run loop, which should never happen\n");
> @@ -2120,8 +2088,6 @@ static void cocoa_display_init(DisplayState *ds, DisplayOptions *opts)
>
> COCOA_DEBUG("qemu_cocoa: cocoa_display_init\n");
>
> - qemu_main = cocoa_main;
> -
> // Pull this console process up to being a fully-fledged graphical
> // app with a menubar and Dock icon
> ProcessSerialNumber psn = { 0, kCurrentProcess };
> @@ -2185,11 +2151,17 @@ static void cocoa_display_init(DisplayState *ds, DisplayOptions *opts)
> qemu_clipboard_peer_register(&cbpeer);
>
> [pool release];
> +
> + /*
> + * The Cocoa UI will run the NSApplication runloop on the main thread
> + * rather than the default Core Foundation one.
> + */
> + qemu_main = cocoa_main;
> }
>
> static QemuDisplay qemu_display_cocoa = {
> - .type = DISPLAY_TYPE_COCOA,
> - .init = cocoa_display_init,
> + .type = DISPLAY_TYPE_COCOA,
> + .init = cocoa_display_init,
This change seems irrelevant.
> };
>
> static void register_cocoa(void)
> diff --git a/ui/sdl2.c b/ui/sdl2.c
> index bd4f5a9da14..44ab2762262 100644
> --- a/ui/sdl2.c
> +++ b/ui/sdl2.c
> @@ -34,6 +34,7 @@
> #include "sysemu/sysemu.h"
> #include "ui/win32-kbd-hook.h"
> #include "qemu/log.h"
> +#include "qemu-main.h"
>
> static int sdl2_num_outputs;
> static struct sdl2_console *sdl2_console;
> @@ -965,6 +966,9 @@ static void sdl2_display_init(DisplayState *ds, DisplayOptions *o)
> }
>
> atexit(sdl_cleanup);
> +
> + /* SDL's event polling (in dpy_refresh) must happen on the main thread. */
> + qemu_main = NULL;
> }
>
> static QemuDisplay qemu_display_sdl2 = {
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v5 02/15] hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support
2024-10-29 20:58 ` [PATCH v5 02/15] hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support Phil Dennis-Jordan
@ 2024-10-31 9:32 ` Akihiko Odaki
2024-11-01 21:37 ` Phil Dennis-Jordan
0 siblings, 1 reply; 20+ messages in thread
From: Akihiko Odaki @ 2024-10-31 9:32 UTC (permalink / raw)
To: Phil Dennis-Jordan, qemu-devel
Cc: agraf, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, qemu-arm, qemu-block, qemu-riscv, Alexander Graf
On 2024/10/30 5:58, Phil Dennis-Jordan wrote:
> MacOS provides a framework (library) that allows any vmm to implement a
> paravirtualized 3d graphics passthrough to the host metal stack called
> ParavirtualizedGraphics.Framework (PVG). The library abstracts away
> almost every aspect of the paravirtualized device model and only provides
> and receives callbacks on MMIO access as well as to share memory address
> space between the VM and PVG.
>
> This patch implements a QEMU device that drives PVG for the VMApple
> variant of it.
>
> Signed-off-by: Alexander Graf <graf@amazon.com>
> Co-authored-by: Alexander Graf <graf@amazon.com>
>
> Subsequent changes:
>
> * Cherry-pick/rebase conflict fixes, API use updates.
> * Moved from hw/vmapple/ (useful outside that machine type)
> * Overhaul of threading model, many thread safety improvements.
> * Asynchronous rendering.
> * Memory and object lifetime fixes.
> * Refactoring to split generic and (vmapple) MMIO variant specific
> code.
>
> Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
> ---
> v2:
>
> * Cherry-pick/rebase conflict fixes
> * BQL function renaming
> * Moved from hw/vmapple/ (useful outside that machine type)
> * Code review comments: Switched to DEFINE_TYPES macro & little endian
> MMIO.
> * Removed some dead/superfluous code
> * Mad set_mode thread & memory safe
> * Added migration blocker due to lack of (de-)serialisation.
> * Fixes to ObjC refcounting and autorelease pool usage.
> * Fixed ObjC new/init misuse
> * Switched to ObjC category extension for private property.
> * Simplified task memory mapping and made it thread safe.
> * Refactoring to split generic and vmapple MMIO variant specific
> code.
> * Switched to asynchronous MMIO writes on x86-64
> * Rendering and graphics update are now done asynchronously
> * Fixed cursor handling
> * Coding convention fixes
> * Removed software cursor compositing
>
> v3:
>
> * Rebased on latest upstream, fixed breakages including switching to Resettable methods.
> * Squashed patches dealing with dGPUs, MMIO area size, and GPU picking.
> * Allow re-entrant MMIO; this simplifies the code and solves the divergence
> between x86-64 and arm64 variants.
>
> v4:
>
> * Renamed '-vmapple' device variant to '-mmio'
> * MMIO device type now requires aarch64 host and guest
> * Complete overhaul of the glue code for making Qemu's and
> ParavirtualizedGraphics.framework's threading and synchronisation models
> work together. Calls into PVG are from dispatch queues while the
> BQL-holding initiating thread processes AIO context events; callbacks from
> PVG are scheduled as BHs on the BQL/main AIO context, awaiting completion
> where necessary.
> * Guest frame rendering state is covered by the BQL, with only the PVG calls
> outside the lock, and serialised on the named render_queue.
> * Simplified logic for dropping frames in-flight during mode changes, fixed
> bug in pending frames logic.
> * Addressed smaller code review notes such as: function naming, object type
> declarations, type names/declarations/casts, code formatting, #include
> order, over-cautious ObjC retain/release, what goes in init vs realize,
> etc.
>
> v5:
>
> * Smaller non-functional fixes in response to review comments, such as using
> NULL for the AIO_WAIT_WHILE context argument, type name formatting,
> deleting leftover debug code, logging improvements, state struct field
> order and documentation improvements, etc.
> * Instead of a single condition variable for all synchronous BH job types,
> there is now one for each callback block. This reduces the number
> of threads being awoken unnecessarily to near zero.
> * MMIO device variant: Unified the BH job for raising interrupts.
> * Use DMA APIs for PVG framework's guest memory read requests.
> * Thread safety improvements: ensure mutable AppleGFXState fields are not
> accessed outside the appropriate lock. Added dedicated mutex for the task
> list.
> * Retain references to MemoryRegions for which there exist mappings in each
> PGTask, and for IOSurface mappings.
>
> hw/display/Kconfig | 9 +
> hw/display/apple-gfx-mmio.m | 387 ++++++++++++++++++
> hw/display/apple-gfx.h | 79 ++++
> hw/display/apple-gfx.m | 773 ++++++++++++++++++++++++++++++++++++
> hw/display/meson.build | 4 +
> hw/display/trace-events | 28 ++
> meson.build | 4 +
> 7 files changed, 1284 insertions(+)
> create mode 100644 hw/display/apple-gfx-mmio.m
> create mode 100644 hw/display/apple-gfx.h
> create mode 100644 hw/display/apple-gfx.m
>
> diff --git a/hw/display/Kconfig b/hw/display/Kconfig
> index 2250c740078..6a9b7b19ada 100644
> --- a/hw/display/Kconfig
> +++ b/hw/display/Kconfig
> @@ -140,3 +140,12 @@ config XLNX_DISPLAYPORT
>
> config DM163
> bool
> +
> +config MAC_PVG
> + bool
> + default y
> +
> +config MAC_PVG_MMIO
> + bool
> + depends on MAC_PVG && AARCH64
> +
> diff --git a/hw/display/apple-gfx-mmio.m b/hw/display/apple-gfx-mmio.m
> new file mode 100644
> index 00000000000..b0c5669a344
> --- /dev/null
> +++ b/hw/display/apple-gfx-mmio.m
> @@ -0,0 +1,387 @@
> +/*
> + * QEMU Apple ParavirtualizedGraphics.framework device, MMIO (arm64) variant
> + *
> + * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or later.
> + * See the COPYING file in the top-level directory.
> + *
> + * SPDX-License-Identifier: GPL-2.0-or-later
> + *
> + * ParavirtualizedGraphics.framework is a set of libraries that macOS provides
> + * which implements 3d graphics passthrough to the host as well as a
> + * proprietary guest communication channel to drive it. This device model
> + * implements support to drive that library from within QEMU as an MMIO-based
> + * system device for macOS on arm64 VMs.
> + */
> +
> +#include "qemu/osdep.h"
> +#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
> +#include "apple-gfx.h"
> +#include "monitor/monitor.h"
> +#include "hw/sysbus.h"
> +#include "hw/irq.h"
> +#include "trace.h"
> +#include "qemu/log.h"
> +
> +OBJECT_DECLARE_SIMPLE_TYPE(AppleGFXMMIOState, APPLE_GFX_MMIO)
> +
> +/*
> + * ParavirtualizedGraphics.Framework only ships header files for the PCI
> + * variant which does not include IOSFC descriptors and host devices. We add
> + * their definitions here so that we can also work with the ARM version.
> + */
> +typedef bool(^IOSFCRaiseInterrupt)(uint32_t vector);
> +typedef bool(^IOSFCUnmapMemory)(
> + void *, void *, void *, void *, void *, void *);
> +typedef bool(^IOSFCMapMemory)(
> + uint64_t phys, uint64_t len, bool ro, void **va, void *, void *);
> +
> +@interface PGDeviceDescriptor (IOSurfaceMapper)
> +@property (readwrite, nonatomic) bool usingIOSurfaceMapper;
> +@end
> +
> +@interface PGIOSurfaceHostDeviceDescriptor : NSObject
> +-(PGIOSurfaceHostDeviceDescriptor *)init;
> +@property (readwrite, nonatomic, copy, nullable) IOSFCMapMemory mapMemory;
> +@property (readwrite, nonatomic, copy, nullable) IOSFCUnmapMemory unmapMemory;
> +@property (readwrite, nonatomic, copy, nullable) IOSFCRaiseInterrupt raiseInterrupt;
> +@end
> +
> +@interface PGIOSurfaceHostDevice : NSObject
> +-(instancetype)initWithDescriptor:(PGIOSurfaceHostDeviceDescriptor *)desc;
> +-(uint32_t)mmioReadAtOffset:(size_t)offset;
> +-(void)mmioWriteAtOffset:(size_t)offset value:(uint32_t)value;
> +@end
> +
> +struct AppleGFXMapSurfaceMemoryJob;
> +struct AppleGFXMMIOState {
> + SysBusDevice parent_obj;
> +
> + AppleGFXState common;
> +
> + QemuCond iosfc_map_job_cond;
> + QemuCond iosfc_unmap_job_cond;
> + qemu_irq irq_gfx;
> + qemu_irq irq_iosfc;
> + MemoryRegion iomem_iosfc;
> + PGIOSurfaceHostDevice *pgiosfc;
> +
> + GArray *iosfc_mapped_regions; /* array of AppleGFXMMIOMappedRegion */
We don't need to have an array but we can get the memory region with
address_space_translate() when mapping or with memory_region_from_host()
when unmapping.
> +};
> +
> +typedef struct AppleGFXMMIOJob {
> + AppleGFXMMIOState *state;
> + uint64_t offset;
> + uint64_t value;
> + bool completed;
> +} AppleGFXMMIOJob;
> +
> +static void iosfc_do_read(void *opaque)
> +{
> + AppleGFXMMIOJob *job = opaque;
> + job->value = [job->state->pgiosfc mmioReadAtOffset:job->offset];
> + qatomic_set(&job->completed, true);
> + aio_wait_kick();
> +}
> +
> +static uint64_t iosfc_read(void *opaque, hwaddr offset, unsigned size)
> +{
> + AppleGFXMMIOJob job = {
> + .state = opaque,
> + .offset = offset,
> + .completed = false,
> + };
> + dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
> +
> + dispatch_async_f(queue, &job, iosfc_do_read);
> + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> +
> + trace_apple_gfx_mmio_iosfc_read(offset, job.value);
> + return job.value;
> +}
> +
> +static void iosfc_do_write(void *opaque)
> +{
> + AppleGFXMMIOJob *job = opaque;
> + [job->state->pgiosfc mmioWriteAtOffset:job->offset value:job->value];
> + qatomic_set(&job->completed, true);
> + aio_wait_kick();
> +}
> +
> +static void iosfc_write(void *opaque, hwaddr offset, uint64_t val,
> + unsigned size)
> +{
> + AppleGFXMMIOJob job = {
> + .state = opaque,
> + .offset = offset,
> + .value = val,
> + .completed = false,
> + };
> + dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
> +
> + dispatch_async_f(queue, &job, iosfc_do_write);
> + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> +
> + trace_apple_gfx_mmio_iosfc_write(offset, val);
> +}
> +
> +static const MemoryRegionOps apple_iosfc_ops = {
> + .read = iosfc_read,
> + .write = iosfc_write,
> + .endianness = DEVICE_LITTLE_ENDIAN,
> + .valid = {
> + .min_access_size = 4,
> + .max_access_size = 8,
> + },
> + .impl = {
> + .min_access_size = 4,
> + .max_access_size = 8,
> + },
> +};
> +
> +static void raise_irq(void *opaque)
> +{
> + qemu_irq *irq = opaque;
> +
> + qemu_irq_pulse(*irq);
> +}
> +
> +typedef struct AppleGFXMapSurfaceMemoryJob {
> + uint64_t guest_physical_address;
> + uint64_t guest_physical_length;
> + void *result_mem;
> + AppleGFXMMIOState *state;
> + bool read_only;
> + bool success;
> + bool done;
> +} AppleGFXMapSurfaceMemoryJob;
> +
> +typedef struct AppleGFXMMIOMappedRegion {
> + MemoryRegion *region;
> + uint64_t map_count;
> + uintptr_t host_virtual_start;
> + uintptr_t host_virtual_end;
> +} AppleGFXMMIOMappedRegion;
> +
> +static void apple_gfx_mmio_map_surface_memory(void *opaque)
> +{
> + AppleGFXMapSurfaceMemoryJob *job = opaque;
> + AppleGFXMMIOState *s = job->state;
> + mach_vm_address_t mem;
> + MemoryRegion *region = NULL;
> + GArray *regions = s->iosfc_mapped_regions;
> + AppleGFXMMIOMappedRegion *mapped_region;
> + size_t i;
> +
> + mem = apple_gfx_host_address_for_gpa_range(job->guest_physical_address,
> + job->guest_physical_length,
> + job->read_only, ®ion);
> +
> + if (mem != 0) {
> + for (i = 0; i < regions->len; ++i) {
> + mapped_region = &g_array_index(regions, AppleGFXMMIOMappedRegion, i);
> + if (region == mapped_region->region) {
> + ++mapped_region->map_count;
> + break;
> + }
> + }
> +
> + if (i >= regions->len) {
> + /* No existing mapping to this region found, keep a reference and save
> + */
> + uintptr_t start = (uintptr_t)memory_region_get_ram_ptr(region);
> + AppleGFXMMIOMappedRegion new_region = {
> + region, 1,
> + start,
> + start + memory_region_size(region)
> + };
> + memory_region_ref(region);
> + g_array_append_val(regions, new_region);
> + trace_apple_gfx_iosfc_map_memory_new_region(
> + i, region, start, new_region.host_virtual_end);
> + }
> + }
> +
> + qemu_mutex_lock(&s->common.job_mutex);
> + job->result_mem = (void *)mem;
> + job->success = mem != 0;
> + job->done = true;
> + qemu_cond_broadcast(&s->iosfc_map_job_cond);
> + qemu_mutex_unlock(&s->common.job_mutex);
> +}
> +
> +typedef struct AppleGFXUnmapSurfaceMemoryJob {
> + void *virtual_address;
> + AppleGFXMMIOState *state;
> + bool done;
> +} AppleGFXUnmapSurfaceMemoryJob;
> +
> +static AppleGFXMMIOMappedRegion *find_mapped_region_containing(GArray *regions,
> + uintptr_t va,
> + size_t *index)
> +{
> + size_t i;
> + AppleGFXMMIOMappedRegion *mapped_region;
> +
> + for (i = 0; i < regions->len; ++i) {
> + mapped_region = &g_array_index(regions, AppleGFXMMIOMappedRegion, i);
> + if (va >= mapped_region->host_virtual_start &&
> + va < mapped_region->host_virtual_end) {
> + *index = i;> + return mapped_region;
> + }
> + }
> + return NULL;
> +}
> +
> +static void apple_gfx_mmio_unmap_surface_memory(void *opaque)
> +{
> + AppleGFXUnmapSurfaceMemoryJob *job = opaque;
> + AppleGFXMMIOState *s = job->state;
> + uintptr_t mem = (uintptr_t)job->virtual_address;
> + GArray *regions = s->iosfc_mapped_regions;
> + size_t region_index;
> + AppleGFXMMIOMappedRegion *mapped_region =
> + find_mapped_region_containing(regions, mem, ®ion_index);
> +
> + if (mapped_region) {
> + trace_apple_gfx_iosfc_unmap_memory_region(mem, region_index, mapped_region->map_count, mapped_region->region);
> + if (--mapped_region->map_count == 0) {
> + memory_region_unref(mapped_region->region);
> + g_array_remove_index_fast(regions, region_index);
> + }
> + } else {
> + qemu_log_mask(LOG_GUEST_ERROR, "%s: memory at %p to be unmapped not "
> + "found in any of %u mapped regions.\n",
> + __func__,
> + job->virtual_address, regions->len);
> + }
> +
> + qemu_mutex_lock(&s->common.job_mutex);
> + job->done = true;
> + qemu_cond_broadcast(&s->iosfc_unmap_job_cond);
> + qemu_mutex_unlock(&s->common.job_mutex);
> +}
> +
> +static PGIOSurfaceHostDevice *apple_gfx_prepare_iosurface_host_device(
> + AppleGFXMMIOState *s)
> +{
> + PGIOSurfaceHostDeviceDescriptor *iosfc_desc =
> + [PGIOSurfaceHostDeviceDescriptor new];
> + PGIOSurfaceHostDevice *iosfc_host_dev = nil;
> +
> + iosfc_desc.mapMemory =
> + ^bool(uint64_t phys, uint64_t len, bool ro, void **va, void *e, void *f) {
> + AppleGFXMapSurfaceMemoryJob job = {
> + .guest_physical_address = phys, .guest_physical_length = len,
> + .read_only = ro, .state = s,
> + };
> +
> + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> + apple_gfx_mmio_map_surface_memory, &job);
> + apple_gfx_await_bh_job(&s->common, &s->iosfc_map_job_cond, &job.done);
> +
> + *va = job.result_mem;
> +
> + trace_apple_gfx_iosfc_map_memory(phys, len, ro, va, e, f, *va,
> + job.success);
> +
> + return job.success;
> + };
> +
> + iosfc_desc.unmapMemory =
> + ^bool(void *va, void *b, void *c, void *d, void *e, void *f) {
> + AppleGFXUnmapSurfaceMemoryJob job = { va, s };
> + trace_apple_gfx_iosfc_unmap_memory(va, b, c, d, e, f);
> +
> + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> + apple_gfx_mmio_unmap_surface_memory, &job);
> + apple_gfx_await_bh_job(&s->common, &s->iosfc_unmap_job_cond, &job.done);
> +
> + return true;
> + };
> +
> + iosfc_desc.raiseInterrupt = ^bool(uint32_t vector) {
> + trace_apple_gfx_iosfc_raise_irq(vector);
> + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> + raise_irq, &s->irq_iosfc);
> + return true;
> + };
> +
> + iosfc_host_dev =
> + [[PGIOSurfaceHostDevice alloc] initWithDescriptor:iosfc_desc];
> + [iosfc_desc release];
> + return iosfc_host_dev;
> +}
> +
> +static void apple_gfx_mmio_realize(DeviceState *dev, Error **errp)
> +{
> + @autoreleasepool {
> + AppleGFXMMIOState *s = APPLE_GFX_MMIO(dev);
> + PGDeviceDescriptor *desc = [PGDeviceDescriptor new];
> +
> + desc.raiseInterrupt = ^(uint32_t vector) {
> + trace_apple_gfx_raise_irq(vector);
> + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> + raise_irq, &s->irq_gfx);
> + };
> +
> + desc.usingIOSurfaceMapper = true;
> + s->pgiosfc = apple_gfx_prepare_iosurface_host_device(s);
> +
> + s->iosfc_mapped_regions =
> + g_array_sized_new(false /* no termination */, true /* clear */,
> + sizeof(AppleGFXMMIOMappedRegion),
> + 2 /* Usually no more RAM regions*/);
> +
> + apple_gfx_common_realize(&s->common, desc, errp);
> + qemu_cond_init(&s->iosfc_map_job_cond);
> + qemu_cond_init(&s->iosfc_unmap_job_cond);
> +
> + [desc release];
> + desc = nil;
> + }
> +}
> +
> +static void apple_gfx_mmio_init(Object *obj)
> +{
> + AppleGFXMMIOState *s = APPLE_GFX_MMIO(obj);
> +
> + apple_gfx_common_init(obj, &s->common, TYPE_APPLE_GFX_MMIO);
> +
> + sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->common.iomem_gfx);
> + memory_region_init_io(&s->iomem_iosfc, obj, &apple_iosfc_ops, s,
> + TYPE_APPLE_GFX_MMIO, 0x10000);
> + sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem_iosfc);
> + sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq_gfx);
> + sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq_iosfc);
> +}
> +
> +static void apple_gfx_mmio_reset(Object *obj, ResetType type)
> +{
> + AppleGFXMMIOState *s = APPLE_GFX_MMIO(obj);
> + [s->common.pgdev reset];
> +}
> +
> +
> +static void apple_gfx_mmio_class_init(ObjectClass *klass, void *data)
> +{
> + DeviceClass *dc = DEVICE_CLASS(klass);
> + ResettableClass *rc = RESETTABLE_CLASS(klass);
> +
> + rc->phases.hold = apple_gfx_mmio_reset;
> + dc->hotpluggable = false;
> + dc->realize = apple_gfx_mmio_realize;
> +}
> +
> +static TypeInfo apple_gfx_mmio_types[] = {
> + {
> + .name = TYPE_APPLE_GFX_MMIO,
> + .parent = TYPE_SYS_BUS_DEVICE,
> + .instance_size = sizeof(AppleGFXMMIOState),
> + .class_init = apple_gfx_mmio_class_init,
> + .instance_init = apple_gfx_mmio_init,
> + }
> +};
> +DEFINE_TYPES(apple_gfx_mmio_types)
> diff --git a/hw/display/apple-gfx.h b/hw/display/apple-gfx.h
> new file mode 100644
> index 00000000000..ef34e8160c8
> --- /dev/null
> +++ b/hw/display/apple-gfx.h
> @@ -0,0 +1,79 @@
> +/*
> + * Data structures and functions shared between variants of the macOS
> + * ParavirtualizedGraphics.framework based apple-gfx display adapter.
> + *
> + * SPDX-License-Identifier: GPL-2.0-or-later
> + */
> +
> +#ifndef QEMU_APPLE_GFX_H
> +#define QEMU_APPLE_GFX_H
> +
> +#define TYPE_APPLE_GFX_MMIO "apple-gfx-mmio"
> +#define TYPE_APPLE_GFX_PCI "apple-gfx-pci"
> +
> +#include "qemu/osdep.h"
> +#include <dispatch/dispatch.h>
> +#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
> +#include "qemu/typedefs.h"
> +#include "exec/memory.h"
> +#include "ui/surface.h"
> +
> +@class PGDeviceDescriptor;
> +@protocol PGDevice;
> +@protocol PGDisplay;
> +@protocol MTLDevice;
> +@protocol MTLTexture;
> +@protocol MTLCommandQueue;
> +
> +typedef QTAILQ_HEAD(, PGTask_s) PGTaskList;
> +
> +typedef struct AppleGFXState {
> + /* Initialised on init/realize() */
> + MemoryRegion iomem_gfx;
> + id<PGDevice> pgdev;
> + id<PGDisplay> pgdisp;
> + QemuConsole *con;
> + id<MTLDevice> mtl;
> + id<MTLCommandQueue> mtl_queue;
> + dispatch_queue_t render_queue;
> + /*
> + * QemuMutex & QemuConds for awaiting completion of PVG memory-mapping and
> + * reading requests after submitting them to run in the AIO context.
> + * QemuCond (rather than QemuEvent) are used so multiple concurrent jobs
> + * can be handled safely.
> + * The state associated with each job is tracked in a AppleGFX*Job struct
> + * for each kind of job; instances are allocated on the caller's stack.
> + * This struct also contains the completion flag which is used in
> + * conjunction with the condition variable.
> + */
> + QemuMutex job_mutex;
> + QemuCond task_map_job_cond;
> + QemuCond mem_read_job_cond;
> +
> + /* tasks is protected by task_mutex */
> + QemuMutex task_mutex;
> + PGTaskList tasks;
> +
> + /* Mutable state (BQL) */
> + QEMUCursor *cursor;
> + bool cursor_show;
> + bool gfx_update_requested;
> + bool new_frame_ready;
> + bool using_managed_texture_storage;
> + int32_t pending_frames;
> + void *vram;
> + DisplaySurface *surface;
> + id<MTLTexture> texture;
> +} AppleGFXState;
> +
> +void apple_gfx_common_init(Object *obj, AppleGFXState *s, const char* obj_name);
> +void apple_gfx_common_realize(AppleGFXState *s, PGDeviceDescriptor *desc,
> + Error **errp);
> +uintptr_t apple_gfx_host_address_for_gpa_range(uint64_t guest_physical,
> + uint64_t length, bool read_only,
> + MemoryRegion **mapping_in_region);
> +void apple_gfx_await_bh_job(AppleGFXState *s, QemuCond *job_cond,
> + bool *job_done_flag);
> +
> +#endif
> +
> diff --git a/hw/display/apple-gfx.m b/hw/display/apple-gfx.m
> new file mode 100644
> index 00000000000..101b38e8a6e
> --- /dev/null
> +++ b/hw/display/apple-gfx.m
> @@ -0,0 +1,773 @@
> +/*
> + * QEMU Apple ParavirtualizedGraphics.framework device
> + *
> + * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or later.
> + * See the COPYING file in the top-level directory.
> + *
> + * SPDX-License-Identifier: GPL-2.0-or-later
> + *
> + * ParavirtualizedGraphics.framework is a set of libraries that macOS provides
> + * which implements 3d graphics passthrough to the host as well as a
> + * proprietary guest communication channel to drive it. This device model
> + * implements support to drive that library from within QEMU.
> + */
> +
> +#include "qemu/osdep.h"
> +#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
> +#include <mach/mach_vm.h>
> +#include "apple-gfx.h"
> +#include "trace.h"
> +#include "qemu-main.h"
> +#include "exec/address-spaces.h"
> +#include "migration/blocker.h"
> +#include "monitor/monitor.h"
> +#include "qemu/main-loop.h"
> +#include "qemu/cutils.h"
> +#include "qemu/log.h"
> +#include "qapi/visitor.h"
> +#include "qapi/error.h"
> +#include "sysemu/dma.h"
> +#include "ui/console.h"
> +
> +static const PGDisplayCoord_t apple_gfx_modes[] = {
> + { .x = 1440, .y = 1080 },
> + { .x = 1280, .y = 1024 },
> +};
> +
> +/* This implements a type defined in <ParavirtualizedGraphics/PGDevice.h>
> + * which is opaque from the framework's point of view. Typedef PGTask_t already
> + * exists in the framework headers. */
> +struct PGTask_s {
> + QTAILQ_ENTRY(PGTask_s) node;
> + AppleGFXState *s;
> + mach_vm_address_t address;
> + uint64_t len;
> + /*
> + * All unique MemoryRegions for which a mapping has been created in in this
> + * task, and on which we have thus called memory_region_ref(). There are
> + * usually very few regions of system RAM in total, so we expect this array
> + * to be very short. Therefore, no need for sorting or fancy search
> + * algorithms, linear search will do. */
> + GArray *mapped_regions;
Use GPtrArray.
> +};
> +
> +static Error *apple_gfx_mig_blocker;
> +
> +static void apple_gfx_render_frame_completed(AppleGFXState *s,
> + uint32_t width, uint32_t height);
> +
> +static dispatch_queue_t get_background_queue(void)
> +{
> + return dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
> +}
> +
> +static PGTask_t *apple_gfx_new_task(AppleGFXState *s, uint64_t len)
> +{
> + mach_vm_address_t task_mem;
> + PGTask_t *task;
> + kern_return_t r;
> +
> + r = mach_vm_allocate(mach_task_self(), &task_mem, len, VM_FLAGS_ANYWHERE);
> + if (r != KERN_SUCCESS) {
> + return NULL;
> + }
> +
> + task = g_new0(PGTask_t, 1);
> + task->s = s;
> + task->address = task_mem;
> + task->len = len;
> + task->mapped_regions = g_array_sized_new(false /* no termination */,
> + true /* clear */,
> + sizeof(MemoryRegion *),
> + 2 /* Usually no more RAM regions*/);
> +
> + QEMU_LOCK_GUARD(&s->task_mutex);
> + QTAILQ_INSERT_TAIL(&s->tasks, task, node);
> +
> + return task;
> +}
> +
> +typedef struct AppleGFXIOJob {
> + AppleGFXState *state;
> + uint64_t offset;
> + uint64_t value;
> + bool completed;
> +} AppleGFXIOJob;
> +
> +static void apple_gfx_do_read(void *opaque)
> +{
> + AppleGFXIOJob *job = opaque;
> + job->value = [job->state->pgdev mmioReadAtOffset:job->offset];
> + qatomic_set(&job->completed, true);
> + aio_wait_kick();
> +}
> +
> +static uint64_t apple_gfx_read(void *opaque, hwaddr offset, unsigned size)
> +{
> + AppleGFXIOJob job = {
> + .state = opaque,
> + .offset = offset,
> + .completed = false,
> + };
> + dispatch_queue_t queue = get_background_queue();
> +
> + dispatch_async_f(queue, &job, apple_gfx_do_read);
> + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> +
> + trace_apple_gfx_read(offset, job.value);
> + return job.value;
> +}
> +
> +static void apple_gfx_do_write(void *opaque)
> +{
> + AppleGFXIOJob *job = opaque;
> + [job->state->pgdev mmioWriteAtOffset:job->offset value:job->value];
> + qatomic_set(&job->completed, true);
> + aio_wait_kick();
> +}
> +
> +static void apple_gfx_write(void *opaque, hwaddr offset, uint64_t val,
> + unsigned size)
> +{
> + /* The methods mmioReadAtOffset: and especially mmioWriteAtOffset: can
> + * trigger and block on operations on other dispatch queues, which in turn
> + * may call back out on one or more of the callback blocks. For this reason,
> + * and as we are holding the BQL, we invoke the I/O methods on a pool
> + * thread and handle AIO tasks while we wait. Any work in the callbacks
> + * requiring the BQL will in turn schedule BHs which this thread will
> + * process while waiting. */
> + AppleGFXIOJob job = {
> + .state = opaque,
> + .offset = offset,
> + .value = val,
> + .completed = false,
> + };
> + dispatch_queue_t queue = get_background_queue();
> +
> + dispatch_async_f(queue, &job, apple_gfx_do_write);
> + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> +
> + trace_apple_gfx_write(offset, val);
> +}
> +
> +static const MemoryRegionOps apple_gfx_ops = {
> + .read = apple_gfx_read,
> + .write = apple_gfx_write,
> + .endianness = DEVICE_LITTLE_ENDIAN,
> + .valid = {
> + .min_access_size = 4,
> + .max_access_size = 8,
> + },
> + .impl = {
> + .min_access_size = 4,
> + .max_access_size = 4,
> + },
> +};
> +
> +static void apple_gfx_render_new_frame_bql_unlock(AppleGFXState *s)
> +{
> + BOOL r;
> + bool managed_texture = s->using_managed_texture_storage;
> + uint32_t width = surface_width(s->surface);
> + uint32_t height = surface_height(s->surface);
> + MTLRegion region = MTLRegionMake2D(0, 0, width, height);
> + id<MTLCommandBuffer> command_buffer = [s->mtl_queue commandBuffer];
> + id<MTLTexture> texture = s->texture;
> +
> + assert(bql_locked());
> + [texture retain];
> +
> + bql_unlock();
> +
> + /* This is not safe to call from the BQL due to PVG-internal locks causing
> + * deadlocks. */
> + r = [s->pgdisp encodeCurrentFrameToCommandBuffer:command_buffer
> + texture:texture
> + region:region];
> + if (!r) {
> + [texture release];
> + bql_lock();
> + --s->pending_frames;
> + bql_unlock();
> + qemu_log_mask(LOG_GUEST_ERROR,
> + "%s: encodeCurrentFrameToCommandBuffer:texture:region: "
> + "failed\n", __func__);
> + return;
> + }
> +
> + if (managed_texture) {
> + /* "Managed" textures exist in both VRAM and RAM and must be synced. */
> + id<MTLBlitCommandEncoder> blit = [command_buffer blitCommandEncoder];
> + [blit synchronizeResource:texture];
> + [blit endEncoding];
> + }
> + [texture release];
> + [command_buffer addCompletedHandler:
> + ^(id<MTLCommandBuffer> cb)
> + {
> + dispatch_async(s->render_queue, ^{
> + apple_gfx_render_frame_completed(s, width, height);
> + });
> + }];
> + [command_buffer commit];
> +}
> +
> +static void copy_mtl_texture_to_surface_mem(id<MTLTexture> texture, void *vram)
> +{
> + /* TODO: Skip this entirely on a pure Metal or headless/guest-only
> + * rendering path, else use a blit command encoder? Needs careful
> + * (double?) buffering design. */
> + size_t width = texture.width, height = texture.height;
> + MTLRegion region = MTLRegionMake2D(0, 0, width, height);
> + [texture getBytes:vram
> + bytesPerRow:(width * 4)
> + bytesPerImage:(width * height * 4)
> + fromRegion:region
> + mipmapLevel:0
> + slice:0];
> +}
> +
> +static void apple_gfx_render_frame_completed(AppleGFXState *s,
> + uint32_t width, uint32_t height)
> +{
> + bql_lock();
> + --s->pending_frames;
> + assert(s->pending_frames >= 0);
> +
> + /* Only update display if mode hasn't changed since we started rendering. */
> + if (width == surface_width(s->surface) &&
> + height == surface_height(s->surface)) {
> + copy_mtl_texture_to_surface_mem(s->texture, s->vram);
> + if (s->gfx_update_requested) {
> + s->gfx_update_requested = false;
> + dpy_gfx_update_full(s->con);
> + graphic_hw_update_done(s->con);
> + s->new_frame_ready = false;
> + } else {
> + s->new_frame_ready = true;
> + }
> + }
> + if (s->pending_frames > 0) {
> + apple_gfx_render_new_frame_bql_unlock(s);
> + } else {
> + bql_unlock();
> + }
> +}
> +
> +static void apple_gfx_fb_update_display(void *opaque)
> +{
> + AppleGFXState *s = opaque;
> +
> + assert(bql_locked());
> + if (s->new_frame_ready) {
> + dpy_gfx_update_full(s->con);
> + s->new_frame_ready = false;
> + graphic_hw_update_done(s->con);
> + } else if (s->pending_frames > 0) {
> + s->gfx_update_requested = true;
> + } else {
> + graphic_hw_update_done(s->con);
> + }
> +}
> +
> +static const GraphicHwOps apple_gfx_fb_ops = {
> + .gfx_update = apple_gfx_fb_update_display,
> + .gfx_update_async = true,
> +};
> +
> +static void update_cursor(AppleGFXState *s)
> +{
> + assert(bql_locked());
> + dpy_mouse_set(s->con, s->pgdisp.cursorPosition.x,
> + s->pgdisp.cursorPosition.y, s->cursor_show);
> +}
> +
> +static void set_mode(AppleGFXState *s, uint32_t width, uint32_t height)
> +{
> + MTLTextureDescriptor *textureDescriptor;
> +
> + if (s->surface &&
> + width == surface_width(s->surface) &&
> + height == surface_height(s->surface)) {
> + return;
> + }
> +
> + g_free(s->vram);
> + [s->texture release];
> +
> + s->vram = g_malloc0_n(width * height, 4);
> + s->surface = qemu_create_displaysurface_from(width, height, PIXMAN_LE_a8r8g8b8,
> + width * 4, s->vram);
Use qemu_create_displaysurface() and let DisplaySurface manage the
memory for us.
> +
> + @autoreleasepool {
> + textureDescriptor =
> + [MTLTextureDescriptor
> + texture2DDescriptorWithPixelFormat:MTLPixelFormatBGRA8Unorm
> + width:width
> + height:height
> + mipmapped:NO];
> + textureDescriptor.usage = s->pgdisp.minimumTextureUsage;
> + s->texture = [s->mtl newTextureWithDescriptor:textureDescriptor];
> + }
> +
> + s->using_managed_texture_storage =
> + (s->texture.storageMode == MTLStorageModeManaged);
> + dpy_gfx_replace_surface(s->con, s->surface);
> +}
> +
> +static void create_fb(AppleGFXState *s)
> +{
> + s->con = graphic_console_init(NULL, 0, &apple_gfx_fb_ops, s);
> + set_mode(s, 1440, 1080);
> +
> + s->cursor_show = true;
> +}
> +
> +static size_t apple_gfx_get_default_mmio_range_size(void)
> +{
> + size_t mmio_range_size;
> + @autoreleasepool {
> + PGDeviceDescriptor *desc = [PGDeviceDescriptor new];
> + mmio_range_size = desc.mmioLength;
> + [desc release];
> + }
> + return mmio_range_size;
> +}
> +
> +void apple_gfx_common_init(Object *obj, AppleGFXState *s, const char* obj_name)
> +{
> + size_t mmio_range_size = apple_gfx_get_default_mmio_range_size();
> +
> + trace_apple_gfx_common_init(obj_name, mmio_range_size);
> + memory_region_init_io(&s->iomem_gfx, obj, &apple_gfx_ops, s, obj_name,
> + mmio_range_size);
> +
> + /* TODO: PVG framework supports serialising device state: integrate it! */
> +}
> +
> +typedef struct AppleGFXMapMemoryJob {
> + AppleGFXState *state;
> + PGTask_t *task;
> + uint64_t virtual_offset;
> + PGPhysicalMemoryRange_t *ranges;
> + uint32_t range_count;
> + bool read_only;
> + bool success;
> + bool done;
> +} AppleGFXMapMemoryJob;
> +
> +uintptr_t apple_gfx_host_address_for_gpa_range(uint64_t guest_physical,
> + uint64_t length, bool read_only,
> + MemoryRegion **mapping_in_region)
> +{
> + MemoryRegion *ram_region;
> + uintptr_t host_address;
> + hwaddr ram_region_offset = 0;
> + hwaddr ram_region_length = length;
> +
> + ram_region = address_space_translate(&address_space_memory,
> + guest_physical,
> + &ram_region_offset,
> + &ram_region_length, !read_only,
> + MEMTXATTRS_UNSPECIFIED);
> +
> + if (!ram_region || ram_region_length < length ||
> + !memory_access_is_direct(ram_region, !read_only)) {
> + return 0;
> + }
> +
> + host_address = (uintptr_t)memory_region_get_ram_ptr(ram_region);
> + if (host_address == 0) {
> + return 0;
> + }
> + host_address += ram_region_offset;
> + *mapping_in_region = ram_region;
> + return host_address;
> +}
> +
> +/* Returns false if the region is already in the array */
> +static bool add_new_region(GArray *regions, MemoryRegion *region)
> +{
> + MemoryRegion *existing;
> + size_t i;
> +
> + for (i = 0; i < regions->len; ++i) {
> + existing = g_array_index(regions, MemoryRegion *, i);
> + if (existing == region) {
> + return false;
> + }
> + }
> + g_array_append_val(regions, region);
> + return true;
> +}
> +
> +static void apple_gfx_map_memory(void *opaque)
> +{
> + AppleGFXMapMemoryJob *job = opaque;
> + AppleGFXState *s = job->state;
> + PGTask_t *task = job->task;
> + uint32_t range_count = job->range_count;
> + uint64_t virtual_offset = job->virtual_offset;
> + PGPhysicalMemoryRange_t *ranges = job->ranges;
> + bool read_only = job->read_only;
> + kern_return_t r;
> + mach_vm_address_t target, source;
> + vm_prot_t cur_protection, max_protection;
> + bool success = true;
> + MemoryRegion *region;
> +
> + g_assert(bql_locked());
It seems this function only requires RCU read lock and we can avoid
using bottom half.
> +
> + trace_apple_gfx_map_memory(task, range_count, virtual_offset, read_only);
> + for (int i = 0; i < range_count; i++) {
> + PGPhysicalMemoryRange_t *range = &ranges[i];
> +
> + target = task->address + virtual_offset;
> + virtual_offset += range->physicalLength;
> +
> + trace_apple_gfx_map_memory_range(i, range->physicalAddress,
> + range->physicalLength);
> +
> + region = NULL;
> + source = apple_gfx_host_address_for_gpa_range(range->physicalAddress,
> + range->physicalLength,
> + read_only, ®ion);
> + if (source == 0) {
> + success = false;
> + continue;
> + }
> +
> + if (add_new_region(task->mapped_regions, region)) {
> + memory_region_ref(region);
> + }
> +
> + cur_protection = 0;
> + max_protection = 0;
> + // Map guest RAM at range->physicalAddress into PG task memory range
> + r = mach_vm_remap(mach_task_self(),
> + &target, range->physicalLength, vm_page_size - 1,
> + VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE,
> + mach_task_self(),
> + source, false /* shared mapping, no copy */,
> + &cur_protection, &max_protection,
> + VM_INHERIT_COPY);
> + trace_apple_gfx_remap(r, source, target);
> + g_assert(r == KERN_SUCCESS);
> + }
> +
> + qemu_mutex_lock(&s->job_mutex);
> + job->success = success;
> + job->done = true;
> + qemu_cond_broadcast(&s->task_map_job_cond);
> + qemu_mutex_unlock(&s->job_mutex);
> +}
> +
> +void apple_gfx_await_bh_job(AppleGFXState *s, QemuCond *job_cond, bool *job_done_flag)
> +{
> + qemu_mutex_lock(&s->job_mutex);
> + while (!*job_done_flag) {
> + qemu_cond_wait(job_cond, &s->job_mutex);
> + }
> + qemu_mutex_unlock(&s->job_mutex);
> +}
> +
> +typedef struct AppleGFXReadMemoryJob {
> + AppleGFXState *s;
> + hwaddr physical_address;
> + uint64_t length;
> + void *dst;
> + bool done;
> + bool success;
> +} AppleGFXReadMemoryJob;
> +
> +static void apple_gfx_do_read_memory(void *opaque)
> +{
> + AppleGFXReadMemoryJob *job = opaque;
> + AppleGFXState *s = job->s;
> + MemTxResult r;
> +
> + r = dma_memory_read(&address_space_memory, job->physical_address,
> + job->dst, job->length, MEMTXATTRS_UNSPECIFIED);
> + job->success = r == MEMTX_OK;
> +
> + qemu_mutex_lock(&s->job_mutex);
> + job->done = true;
> + qemu_cond_broadcast(&s->mem_read_job_cond);
> + qemu_mutex_unlock(&s->job_mutex);
> +}
> +
> +static bool apple_gfx_read_memory(AppleGFXState *s, hwaddr physical_address,
> + uint64_t length, void *dst)
> +{
> + AppleGFXReadMemoryJob job = {
> + s, physical_address, length, dst
> + };
> +
> + trace_apple_gfx_read_memory(physical_address, length, dst);
> +
> + /* Traversing the memory map requires RCU/BQL, so do it in a BH. */
> + aio_bh_schedule_oneshot(qemu_get_aio_context(), apple_gfx_do_read_memory,
> + &job);
> + apple_gfx_await_bh_job(s, &s->mem_read_job_cond, &job.done);
> + return job.success;
> +}
> +
> +static void apple_gfx_task_destroy(AppleGFXState *s, PGTask_t *task)
> +{
> + GArray *regions = task->mapped_regions;
> + MemoryRegion *region;
> + size_t i;
> +
> + for (i = 0; i < regions->len; ++i) {
> + region = g_array_index(regions, MemoryRegion *, i);
> + memory_region_unref(region);
> + }
> + g_array_unref(regions);
> +
> + mach_vm_deallocate(mach_task_self(), task->address, task->len);
> +
> + QEMU_LOCK_GUARD(&s->task_mutex);
> + QTAILQ_REMOVE(&s->tasks, task, node);
> + g_free(task);
> +}
> +
> +static void apple_gfx_register_task_mapping_handlers(AppleGFXState *s,
> + PGDeviceDescriptor *desc)
> +{
> + desc.createTask = ^(uint64_t vmSize, void * _Nullable * _Nonnull baseAddress) {
> + PGTask_t *task = apple_gfx_new_task(s, vmSize);
> + *baseAddress = (void *)task->address;
> + trace_apple_gfx_create_task(vmSize, *baseAddress);
> + return task;
> + };
> +
> + desc.destroyTask = ^(PGTask_t * _Nonnull task) {
> + trace_apple_gfx_destroy_task(task, task->mapped_regions->len);
> +
> + apple_gfx_task_destroy(s, task);
> + };
> +
> + desc.mapMemory = ^bool(PGTask_t * _Nonnull task, uint32_t range_count,
> + uint64_t virtual_offset, bool read_only,
> + PGPhysicalMemoryRange_t * _Nonnull ranges) {
> + AppleGFXMapMemoryJob job = {
> + .state = s,
> + .task = task, .ranges = ranges, .range_count = range_count,
> + .read_only = read_only, .virtual_offset = virtual_offset,
> + .done = false, .success = true,
> + };
> + if (range_count > 0) {
> + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> + apple_gfx_map_memory, &job);
> + apple_gfx_await_bh_job(s, &s->task_map_job_cond, &job.done);
> + }
> + return job.success;
> + };
> +
> + desc.unmapMemory = ^bool(PGTask_t * _Nonnull task, uint64_t virtualOffset,
> + uint64_t length) {
> + kern_return_t r;
> + mach_vm_address_t range_address;
> +
> + trace_apple_gfx_unmap_memory(task, virtualOffset, length);
> +
> + /* Replace task memory range with fresh pages, undoing the mapping
> + * from guest RAM. */
> + range_address = task->address + virtualOffset;
> + r = mach_vm_allocate(mach_task_self(), &range_address, length,
> + VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE);
> + g_assert(r == KERN_SUCCESS);> +
> + return true;
> + };
> +
> + desc.readMemory = ^bool(uint64_t physical_address, uint64_t length,
> + void * _Nonnull dst) {
> + return apple_gfx_read_memory(s, physical_address, length, dst);
> + };
> +}
> +
> +static PGDisplayDescriptor *apple_gfx_prepare_display_descriptor(AppleGFXState *s)
> +{
> + PGDisplayDescriptor *disp_desc = [PGDisplayDescriptor new];
> +
> + disp_desc.name = @"QEMU display";
> + disp_desc.sizeInMillimeters = NSMakeSize(400., 300.); /* A 20" display */
> + disp_desc.queue = dispatch_get_main_queue();
> + disp_desc.newFrameEventHandler = ^(void) {
> + trace_apple_gfx_new_frame();
> + dispatch_async(s->render_queue, ^{
> + /* Drop frames if we get too far ahead. */
> + bql_lock();
> + if (s->pending_frames >= 2) {
> + bql_unlock();
> + return;
> + }
> + ++s->pending_frames;
> + if (s->pending_frames > 1) {
> + bql_unlock();
> + return;
> + }
> + @autoreleasepool {
> + apple_gfx_render_new_frame_bql_unlock(s);
> + }
> + });
> + };
> + disp_desc.modeChangeHandler = ^(PGDisplayCoord_t sizeInPixels,
> + OSType pixelFormat) {
> + trace_apple_gfx_mode_change(sizeInPixels.x, sizeInPixels.y);
> +
> + BQL_LOCK_GUARD();
> + set_mode(s, sizeInPixels.x, sizeInPixels.y);
> + };
> + disp_desc.cursorGlyphHandler = ^(NSBitmapImageRep *glyph,
> + PGDisplayCoord_t hotSpot) {
> + [glyph retain];
> + dispatch_async(get_background_queue(), ^{
> + BQL_LOCK_GUARD();
This would be better off using a bottom half since it is going to take
the BQL.
> + uint32_t bpp = glyph.bitsPerPixel;
> + size_t width = glyph.pixelsWide;
> + size_t height = glyph.pixelsHigh;
> + size_t padding_bytes_per_row = glyph.bytesPerRow - width * 4;
> + const uint8_t* px_data = glyph.bitmapData;
> +
> + trace_apple_gfx_cursor_set(bpp, width, height);
> +
> + if (s->cursor) {
> + cursor_unref(s->cursor);
> + s->cursor = NULL;
> + }
> +
> + if (bpp == 32) { /* Shouldn't be anything else, but just to be safe...*/
> + s->cursor = cursor_alloc(width, height);
> + s->cursor->hot_x = hotSpot.x;
> + s->cursor->hot_y = hotSpot.y;
> +
> + uint32_t *dest_px = s->cursor->data;
> +
> + for (size_t y = 0; y < height; ++y) {
> + for (size_t x = 0; x < width; ++x) {
> + /* NSBitmapImageRep's red & blue channels are swapped
> + * compared to QEMUCursor's. */
> + *dest_px =
> + (px_data[0] << 16u) |
> + (px_data[1] << 8u) |
> + (px_data[2] << 0u) |
> + (px_data[3] << 24u);
> + ++dest_px;
> + px_data += 4;
> + }
> + px_data += padding_bytes_per_row;
> + }
> + dpy_cursor_define(s->con, s->cursor);
> + update_cursor(s);
> + }
> + [glyph release];
> + });
> + };
> + disp_desc.cursorShowHandler = ^(BOOL show) {
> + dispatch_async(get_background_queue(), ^{
> + BQL_LOCK_GUARD();
> + trace_apple_gfx_cursor_show(show);
> + s->cursor_show = show;
> + update_cursor(s);
> + });
> + };
> + disp_desc.cursorMoveHandler = ^(void) {
> + dispatch_async(get_background_queue(), ^{
> + BQL_LOCK_GUARD();
> + trace_apple_gfx_cursor_move();
> + update_cursor(s);
> + });
> + };
> +
> + return disp_desc;
> +}
> +
> +static NSArray<PGDisplayMode*>* apple_gfx_prepare_display_mode_array(void)
> +{
> + PGDisplayMode *modes[ARRAY_SIZE(apple_gfx_modes)];
> + NSArray<PGDisplayMode*>* mode_array = nil;
> + int i;
> +
> + for (i = 0; i < ARRAY_SIZE(apple_gfx_modes); i++) {
> + modes[i] =
> + [[PGDisplayMode alloc] initWithSizeInPixels:apple_gfx_modes[i] refreshRateInHz:60.];
> + }
> +
> + mode_array = [NSArray arrayWithObjects:modes count:ARRAY_SIZE(apple_gfx_modes)];
> +
> + for (i = 0; i < ARRAY_SIZE(apple_gfx_modes); i++) {
> + [modes[i] release];
> + modes[i] = nil;
> + }
> +
> + return mode_array;
> +}
> +
> +static id<MTLDevice> copy_suitable_metal_device(void)
> +{
> + id<MTLDevice> dev = nil;
> + NSArray<id<MTLDevice>> *devs = MTLCopyAllDevices();
> +
> + /* Prefer a unified memory GPU. Failing that, pick a non-removable GPU. */
> + for (size_t i = 0; i < devs.count; ++i) {
> + if (devs[i].hasUnifiedMemory) {
> + dev = devs[i];
> + break;
> + }
> + if (!devs[i].removable) {
> + dev = devs[i];
> + }
> + }
> +
> + if (dev != nil) {
> + [dev retain];
> + } else {
> + dev = MTLCreateSystemDefaultDevice();
> + }
> + [devs release];
> +
> + return dev;
> +}
> +
> +void apple_gfx_common_realize(AppleGFXState *s, PGDeviceDescriptor *desc,
> + Error **errp)
> +{
> + PGDisplayDescriptor *disp_desc = nil;
> +
> + if (apple_gfx_mig_blocker == NULL) {
> + error_setg(&apple_gfx_mig_blocker,
> + "Migration state blocked by apple-gfx display device");
> + if (migrate_add_blocker(&apple_gfx_mig_blocker, errp) < 0) {
> + return;
> + }
> + }
> +
> + qemu_mutex_init(&s->task_mutex);
> + QTAILQ_INIT(&s->tasks);
> + s->render_queue = dispatch_queue_create("apple-gfx.render",
> + DISPATCH_QUEUE_SERIAL);
> + s->mtl = copy_suitable_metal_device();
> + s->mtl_queue = [s->mtl newCommandQueue];
> +
> + desc.device = s->mtl;
> +
> + apple_gfx_register_task_mapping_handlers(s, desc);
> +
> + s->pgdev = PGNewDeviceWithDescriptor(desc);
> +
> + disp_desc = apple_gfx_prepare_display_descriptor(s);
> + s->pgdisp = [s->pgdev newDisplayWithDescriptor:disp_desc
> + port:0 serialNum:1234];
> + [disp_desc release];
> + s->pgdisp.modeList = apple_gfx_prepare_display_mode_array();
> +
> + create_fb(s);
> +
> + qemu_mutex_init(&s->job_mutex);
> + qemu_cond_init(&s->task_map_job_cond);
> + qemu_cond_init(&s->mem_read_job_cond);
> +}
> diff --git a/hw/display/meson.build b/hw/display/meson.build
> index 20a94973fa2..619e642905a 100644
> --- a/hw/display/meson.build
> +++ b/hw/display/meson.build
> @@ -61,6 +61,10 @@ system_ss.add(when: 'CONFIG_ARTIST', if_true: files('artist.c'))
>
> system_ss.add(when: 'CONFIG_ATI_VGA', if_true: [files('ati.c', 'ati_2d.c', 'ati_dbg.c'), pixman])
>
> +system_ss.add(when: 'CONFIG_MAC_PVG', if_true: [files('apple-gfx.m'), pvg, metal])
> +if cpu == 'aarch64'
> + system_ss.add(when: 'CONFIG_MAC_PVG_MMIO', if_true: [files('apple-gfx-mmio.m'), pvg, metal])
> +endif
>
> if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
> virtio_gpu_ss = ss.source_set()
> diff --git a/hw/display/trace-events b/hw/display/trace-events
> index 781f8a33203..d63fba6d094 100644
> --- a/hw/display/trace-events
> +++ b/hw/display/trace-events
> @@ -191,3 +191,31 @@ dm163_bits_ppi(unsigned dest_width) "dest_width : %u"
> dm163_leds(int led, uint32_t value) "led %d: 0x%x"
> dm163_channels(int channel, uint8_t value) "channel %d: 0x%x"
> dm163_refresh_rate(uint32_t rr) "refresh rate %d"
> +
> +# apple-gfx.m
> +apple_gfx_read(uint64_t offset, uint64_t res) "offset=0x%"PRIx64" res=0x%"PRIx64
> +apple_gfx_write(uint64_t offset, uint64_t val) "offset=0x%"PRIx64" val=0x%"PRIx64
> +apple_gfx_create_task(uint32_t vm_size, void *va) "vm_size=0x%x base_addr=%p"
> +apple_gfx_destroy_task(void *task, unsigned int num_mapped_regions) "task=%p, task->mapped_regions->len=%u"
> +apple_gfx_map_memory(void *task, uint32_t range_count, uint64_t virtual_offset, uint32_t read_only) "task=%p range_count=0x%x virtual_offset=0x%"PRIx64" read_only=%d"
> +apple_gfx_map_memory_range(uint32_t i, uint64_t phys_addr, uint64_t phys_len) "[%d] phys_addr=0x%"PRIx64" phys_len=0x%"PRIx64
> +apple_gfx_remap(uint64_t retval, uint64_t source, uint64_t target) "retval=%"PRId64" source=0x%"PRIx64" target=0x%"PRIx64
> +apple_gfx_unmap_memory(void *task, uint64_t virtual_offset, uint64_t length) "task=%p virtual_offset=0x%"PRIx64" length=0x%"PRIx64
> +apple_gfx_read_memory(uint64_t phys_address, uint64_t length, void *dst) "phys_addr=0x%"PRIx64" length=0x%"PRIx64" dest=%p"
> +apple_gfx_raise_irq(uint32_t vector) "vector=0x%x"
> +apple_gfx_new_frame(void) ""
> +apple_gfx_mode_change(uint64_t x, uint64_t y) "x=%"PRId64" y=%"PRId64
> +apple_gfx_cursor_set(uint32_t bpp, uint64_t width, uint64_t height) "bpp=%d width=%"PRId64" height=0x%"PRId64
> +apple_gfx_cursor_show(uint32_t show) "show=%d"
> +apple_gfx_cursor_move(void) ""
> +apple_gfx_common_init(const char *device_name, size_t mmio_size) "device: %s; MMIO size: %zu bytes"
> +
> +# apple-gfx-mmio.m
> +apple_gfx_mmio_iosfc_read(uint64_t offset, uint64_t res) "offset=0x%"PRIx64" res=0x%"PRIx64
> +apple_gfx_mmio_iosfc_write(uint64_t offset, uint64_t val) "offset=0x%"PRIx64" val=0x%"PRIx64
> +apple_gfx_iosfc_map_memory(uint64_t phys, uint64_t len, uint32_t ro, void *va, void *e, void *f, void* va_result, int success) "phys=0x%"PRIx64" len=0x%"PRIx64" ro=%d va=%p e=%p f=%p -> *va=%p, success = %d"
> +apple_gfx_iosfc_map_memory_new_region(size_t i, void *region, uint64_t start, uint64_t end) "index=%zu, region=%p, 0x%"PRIx64"-0x%"PRIx64
> +apple_gfx_iosfc_unmap_memory(void *a, void *b, void *c, void *d, void *e, void *f) "a=%p b=%p c=%p d=%p e=%p f=%p"
> +apple_gfx_iosfc_unmap_memory_region(uint64_t mem, size_t region_index, uint64_t map_count, void *region) "mapping @ 0x%"PRIx64" in region %zu, map count %"PRIu64", memory region %p"
> +apple_gfx_iosfc_raise_irq(uint32_t vector) "vector=0x%x"
> +
> diff --git a/meson.build b/meson.build
> index f7d45175212..5eab46f704f 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -769,6 +769,8 @@ socket = []
> version_res = []
> coref = []
> iokit = []
> +pvg = []
> +metal = []
> emulator_link_args = []
> midl = not_found
> widl = not_found
> @@ -790,6 +792,8 @@ elif host_os == 'darwin'
> coref = dependency('appleframeworks', modules: 'CoreFoundation')
> iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
> host_dsosuf = '.dylib'
> + pvg = dependency('appleframeworks', modules: 'ParavirtualizedGraphics')
> + metal = dependency('appleframeworks', modules: 'Metal')
> elif host_os == 'sunos'
> socket = [cc.find_library('socket'),
> cc.find_library('nsl'),
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v5 02/15] hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support
2024-10-31 9:32 ` Akihiko Odaki
@ 2024-11-01 21:37 ` Phil Dennis-Jordan
2024-11-02 12:38 ` Akihiko Odaki
0 siblings, 1 reply; 20+ messages in thread
From: Phil Dennis-Jordan @ 2024-11-01 21:37 UTC (permalink / raw)
To: Akihiko Odaki
Cc: qemu-devel, agraf, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, qemu-arm, qemu-block, qemu-riscv, Alexander Graf
[-- Attachment #1: Type: text/plain, Size: 61577 bytes --]
Thanks for taking a look at this latest iteration. Some thoughts on your
comments inline:
On Thu, 31 Oct 2024 at 10:32, Akihiko Odaki <akihiko.odaki@daynix.com>
wrote:
> On 2024/10/30 5:58, Phil Dennis-Jordan wrote:
> > MacOS provides a framework (library) that allows any vmm to implement a
> > paravirtualized 3d graphics passthrough to the host metal stack called
> > ParavirtualizedGraphics.Framework (PVG). The library abstracts away
> > almost every aspect of the paravirtualized device model and only provides
> > and receives callbacks on MMIO access as well as to share memory address
> > space between the VM and PVG.
> >
> > This patch implements a QEMU device that drives PVG for the VMApple
> > variant of it.
> >
> > Signed-off-by: Alexander Graf <graf@amazon.com>
> > Co-authored-by: Alexander Graf <graf@amazon.com>
> >
> > Subsequent changes:
> >
> > * Cherry-pick/rebase conflict fixes, API use updates.
> > * Moved from hw/vmapple/ (useful outside that machine type)
> > * Overhaul of threading model, many thread safety improvements.
> > * Asynchronous rendering.
> > * Memory and object lifetime fixes.
> > * Refactoring to split generic and (vmapple) MMIO variant specific
> > code.
> >
> > Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
> > ---
> > v2:
> >
> > * Cherry-pick/rebase conflict fixes
> > * BQL function renaming
> > * Moved from hw/vmapple/ (useful outside that machine type)
> > * Code review comments: Switched to DEFINE_TYPES macro & little endian
> > MMIO.
> > * Removed some dead/superfluous code
> > * Mad set_mode thread & memory safe
> > * Added migration blocker due to lack of (de-)serialisation.
> > * Fixes to ObjC refcounting and autorelease pool usage.
> > * Fixed ObjC new/init misuse
> > * Switched to ObjC category extension for private property.
> > * Simplified task memory mapping and made it thread safe.
> > * Refactoring to split generic and vmapple MMIO variant specific
> > code.
> > * Switched to asynchronous MMIO writes on x86-64
> > * Rendering and graphics update are now done asynchronously
> > * Fixed cursor handling
> > * Coding convention fixes
> > * Removed software cursor compositing
> >
> > v3:
> >
> > * Rebased on latest upstream, fixed breakages including switching to
> Resettable methods.
> > * Squashed patches dealing with dGPUs, MMIO area size, and GPU picking.
> > * Allow re-entrant MMIO; this simplifies the code and solves the
> divergence
> > between x86-64 and arm64 variants.
> >
> > v4:
> >
> > * Renamed '-vmapple' device variant to '-mmio'
> > * MMIO device type now requires aarch64 host and guest
> > * Complete overhaul of the glue code for making Qemu's and
> > ParavirtualizedGraphics.framework's threading and synchronisation
> models
> > work together. Calls into PVG are from dispatch queues while the
> > BQL-holding initiating thread processes AIO context events;
> callbacks from
> > PVG are scheduled as BHs on the BQL/main AIO context, awaiting
> completion
> > where necessary.
> > * Guest frame rendering state is covered by the BQL, with only the PVG
> calls
> > outside the lock, and serialised on the named render_queue.
> > * Simplified logic for dropping frames in-flight during mode changes,
> fixed
> > bug in pending frames logic.
> > * Addressed smaller code review notes such as: function naming, object
> type
> > declarations, type names/declarations/casts, code formatting,
> #include
> > order, over-cautious ObjC retain/release, what goes in init vs
> realize,
> > etc.
> >
> > v5:
> >
> > * Smaller non-functional fixes in response to review comments, such as
> using
> > NULL for the AIO_WAIT_WHILE context argument, type name formatting,
> > deleting leftover debug code, logging improvements, state struct
> field
> > order and documentation improvements, etc.
> > * Instead of a single condition variable for all synchronous BH job
> types,
> > there is now one for each callback block. This reduces the number
> > of threads being awoken unnecessarily to near zero.
> > * MMIO device variant: Unified the BH job for raising interrupts.
> > * Use DMA APIs for PVG framework's guest memory read requests.
> > * Thread safety improvements: ensure mutable AppleGFXState fields are
> not
> > accessed outside the appropriate lock. Added dedicated mutex for the
> task
> > list.
> > * Retain references to MemoryRegions for which there exist mappings in
> each
> > PGTask, and for IOSurface mappings.
> >
> > hw/display/Kconfig | 9 +
> > hw/display/apple-gfx-mmio.m | 387 ++++++++++++++++++
> > hw/display/apple-gfx.h | 79 ++++
> > hw/display/apple-gfx.m | 773 ++++++++++++++++++++++++++++++++++++
> > hw/display/meson.build | 4 +
> > hw/display/trace-events | 28 ++
> > meson.build | 4 +
> > 7 files changed, 1284 insertions(+)
> > create mode 100644 hw/display/apple-gfx-mmio.m
> > create mode 100644 hw/display/apple-gfx.h
> > create mode 100644 hw/display/apple-gfx.m
> >
> > diff --git a/hw/display/Kconfig b/hw/display/Kconfig
> > index 2250c740078..6a9b7b19ada 100644
> > --- a/hw/display/Kconfig
> > +++ b/hw/display/Kconfig
> > @@ -140,3 +140,12 @@ config XLNX_DISPLAYPORT
> >
> > config DM163
> > bool
> > +
> > +config MAC_PVG
> > + bool
> > + default y
> > +
> > +config MAC_PVG_MMIO
> > + bool
> > + depends on MAC_PVG && AARCH64
> > +
> > diff --git a/hw/display/apple-gfx-mmio.m b/hw/display/apple-gfx-mmio.m
> > new file mode 100644
> > index 00000000000..b0c5669a344
> > --- /dev/null
> > +++ b/hw/display/apple-gfx-mmio.m
> > @@ -0,0 +1,387 @@
> > +/*
> > + * QEMU Apple ParavirtualizedGraphics.framework device, MMIO (arm64)
> variant
> > + *
> > + * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights
> Reserved.
> > + *
> > + * This work is licensed under the terms of the GNU GPL, version 2 or
> later.
> > + * See the COPYING file in the top-level directory.
> > + *
> > + * SPDX-License-Identifier: GPL-2.0-or-later
> > + *
> > + * ParavirtualizedGraphics.framework is a set of libraries that macOS
> provides
> > + * which implements 3d graphics passthrough to the host as well as a
> > + * proprietary guest communication channel to drive it. This device
> model
> > + * implements support to drive that library from within QEMU as an
> MMIO-based
> > + * system device for macOS on arm64 VMs.
> > + */
> > +
> > +#include "qemu/osdep.h"
> > +#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
> > +#include "apple-gfx.h"
> > +#include "monitor/monitor.h"
> > +#include "hw/sysbus.h"
> > +#include "hw/irq.h"
> > +#include "trace.h"
> > +#include "qemu/log.h"
> > +
> > +OBJECT_DECLARE_SIMPLE_TYPE(AppleGFXMMIOState, APPLE_GFX_MMIO)
> > +
> > +/*
> > + * ParavirtualizedGraphics.Framework only ships header files for the PCI
> > + * variant which does not include IOSFC descriptors and host devices.
> We add
> > + * their definitions here so that we can also work with the ARM version.
> > + */
> > +typedef bool(^IOSFCRaiseInterrupt)(uint32_t vector);
> > +typedef bool(^IOSFCUnmapMemory)(
> > + void *, void *, void *, void *, void *, void *);
> > +typedef bool(^IOSFCMapMemory)(
> > + uint64_t phys, uint64_t len, bool ro, void **va, void *, void *);
> > +
> > +@interface PGDeviceDescriptor (IOSurfaceMapper)
> > +@property (readwrite, nonatomic) bool usingIOSurfaceMapper;
> > +@end
> > +
> > +@interface PGIOSurfaceHostDeviceDescriptor : NSObject
> > +-(PGIOSurfaceHostDeviceDescriptor *)init;
> > +@property (readwrite, nonatomic, copy, nullable) IOSFCMapMemory
> mapMemory;
> > +@property (readwrite, nonatomic, copy, nullable) IOSFCUnmapMemory
> unmapMemory;
> > +@property (readwrite, nonatomic, copy, nullable) IOSFCRaiseInterrupt
> raiseInterrupt;
> > +@end
> > +
> > +@interface PGIOSurfaceHostDevice : NSObject
> > +-(instancetype)initWithDescriptor:(PGIOSurfaceHostDeviceDescriptor
> *)desc;
> > +-(uint32_t)mmioReadAtOffset:(size_t)offset;
> > +-(void)mmioWriteAtOffset:(size_t)offset value:(uint32_t)value;
> > +@end
> > +
> > +struct AppleGFXMapSurfaceMemoryJob;
> > +struct AppleGFXMMIOState {
> > + SysBusDevice parent_obj;
> > +
> > + AppleGFXState common;
> > +
> > + QemuCond iosfc_map_job_cond;
> > + QemuCond iosfc_unmap_job_cond;
> > + qemu_irq irq_gfx;
> > + qemu_irq irq_iosfc;
> > + MemoryRegion iomem_iosfc;
> > + PGIOSurfaceHostDevice *pgiosfc;
> > +
> > + GArray *iosfc_mapped_regions; /* array of AppleGFXMMIOMappedRegion
> */
>
> We don't need to have an array but we can get the memory region with
> address_space_translate() when mapping or with memory_region_from_host()
> when unmapping.
>
Yeah, I guess that works. Lots of memory_region_ref()/memory_region_unref()
calls, but I guess the address_space_translate() call is much more
expensive anyway. I originally wanted to store the physical range of the
RAM region so we don't need to keep looking up the physical address on
mapping, but there does not seem to be a good way to obtain the
guest-physical start address of the result of a address_space_translate()
call as only part of the region might be mapped contiguously. (Unless
you've got a good suggestion for that? I was wondering about subtracting
the offset returned from address_space_translate() from the guest physical
address then re-running address_space_translate() with that and the memory
region's size to check if all of it is mapped.)
For background:
In my testing, the system performs thousands of these IOSurface memory
mappings per second, with tens of thousands of mappings alive at any time.
The vast majority are 1 page [16KiB] in size, and they are unmapped in
batches of tens of thousands. In practice, there is only one MemoryRegion
involved in all of this, which is the MemoryRegion containing all of the
VM's system memory. So all of this lookup and referencing and unreferencing
ultimately seems pretty pointless because all that really needs to be done
is work out the offset in guest RAM and add it to the host-side pointer.
But hypothetically, the RAM topology could be more complex, so we have to
jump through all these hoops.
The situation is similar in the task memory-mapping callback of the
main/common PVG device, except there aren't so many mappings and they are
larger. As that's also used in the PCI variant, you also get to deal with
the fun of the non-contiguous x86-64 guest system memory.
> > +};
> > +
> > +typedef struct AppleGFXMMIOJob {
> > + AppleGFXMMIOState *state;
> > + uint64_t offset;
> > + uint64_t value;
> > + bool completed;
> > +} AppleGFXMMIOJob;
> > +
> > +static void iosfc_do_read(void *opaque)
> > +{
> > + AppleGFXMMIOJob *job = opaque;
> > + job->value = [job->state->pgiosfc mmioReadAtOffset:job->offset];
> > + qatomic_set(&job->completed, true);
> > + aio_wait_kick();
> > +}
> > +
> > +static uint64_t iosfc_read(void *opaque, hwaddr offset, unsigned size)
> > +{
> > + AppleGFXMMIOJob job = {
> > + .state = opaque,
> > + .offset = offset,
> > + .completed = false,
> > + };
> > + dispatch_queue_t queue =
> dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
> > +
> > + dispatch_async_f(queue, &job, iosfc_do_read);
> > + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> > +
> > + trace_apple_gfx_mmio_iosfc_read(offset, job.value);
> > + return job.value;
> > +}
> > +
> > +static void iosfc_do_write(void *opaque)
> > +{
> > + AppleGFXMMIOJob *job = opaque;
> > + [job->state->pgiosfc mmioWriteAtOffset:job->offset
> value:job->value];
> > + qatomic_set(&job->completed, true);
> > + aio_wait_kick();
> > +}
> > +
> > +static void iosfc_write(void *opaque, hwaddr offset, uint64_t val,
> > + unsigned size)
> > +{
> > + AppleGFXMMIOJob job = {
> > + .state = opaque,
> > + .offset = offset,
> > + .value = val,
> > + .completed = false,
> > + };
> > + dispatch_queue_t queue =
> dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
> > +
> > + dispatch_async_f(queue, &job, iosfc_do_write);
> > + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> > +
> > + trace_apple_gfx_mmio_iosfc_write(offset, val);
> > +}
> > +
> > +static const MemoryRegionOps apple_iosfc_ops = {
> > + .read = iosfc_read,
> > + .write = iosfc_write,
> > + .endianness = DEVICE_LITTLE_ENDIAN,
> > + .valid = {
> > + .min_access_size = 4,
> > + .max_access_size = 8,
> > + },
> > + .impl = {
> > + .min_access_size = 4,
> > + .max_access_size = 8,
> > + },
> > +};
> > +
> > +static void raise_irq(void *opaque)
> > +{
> > + qemu_irq *irq = opaque;
> > +
> > + qemu_irq_pulse(*irq);
> > +}
> > +
> > +typedef struct AppleGFXMapSurfaceMemoryJob {
> > + uint64_t guest_physical_address;
> > + uint64_t guest_physical_length;
> > + void *result_mem;
> > + AppleGFXMMIOState *state;
> > + bool read_only;
> > + bool success;
> > + bool done;
> > +} AppleGFXMapSurfaceMemoryJob;
> > +
> > +typedef struct AppleGFXMMIOMappedRegion {
> > + MemoryRegion *region;
> > + uint64_t map_count;
> > + uintptr_t host_virtual_start;
> > + uintptr_t host_virtual_end;
> > +} AppleGFXMMIOMappedRegion;
> > +
> > +static void apple_gfx_mmio_map_surface_memory(void *opaque)
> > +{
> > + AppleGFXMapSurfaceMemoryJob *job = opaque;
> > + AppleGFXMMIOState *s = job->state;
> > + mach_vm_address_t mem;
> > + MemoryRegion *region = NULL;
> > + GArray *regions = s->iosfc_mapped_regions;
> > + AppleGFXMMIOMappedRegion *mapped_region;
> > + size_t i;
> > +
> > + mem =
> apple_gfx_host_address_for_gpa_range(job->guest_physical_address,
> > +
> job->guest_physical_length,
> > + job->read_only, ®ion);
> > +
> > + if (mem != 0) {
> > + for (i = 0; i < regions->len; ++i) {
> > + mapped_region = &g_array_index(regions,
> AppleGFXMMIOMappedRegion, i);
> > + if (region == mapped_region->region) {
> > + ++mapped_region->map_count;
> > + break;
> > + }
> > + }
> > +
> > + if (i >= regions->len) {
> > + /* No existing mapping to this region found, keep a
> reference and save
> > + */
> > + uintptr_t start =
> (uintptr_t)memory_region_get_ram_ptr(region);
> > + AppleGFXMMIOMappedRegion new_region = {
> > + region, 1,
> > + start,
> > + start + memory_region_size(region)
> > + };
> > + memory_region_ref(region);
> > + g_array_append_val(regions, new_region);
> > + trace_apple_gfx_iosfc_map_memory_new_region(
> > + i, region, start, new_region.host_virtual_end);
> > + }
> > + }
> > +
> > + qemu_mutex_lock(&s->common.job_mutex);
> > + job->result_mem = (void *)mem;
> > + job->success = mem != 0;
> > + job->done = true;
> > + qemu_cond_broadcast(&s->iosfc_map_job_cond);
> > + qemu_mutex_unlock(&s->common.job_mutex);
> > +}
> > +
> > +typedef struct AppleGFXUnmapSurfaceMemoryJob {
> > + void *virtual_address;
> > + AppleGFXMMIOState *state;
> > + bool done;
> > +} AppleGFXUnmapSurfaceMemoryJob;
> > +
> > +static AppleGFXMMIOMappedRegion *find_mapped_region_containing(GArray
> *regions,
> > +
> uintptr_t va,
> > + size_t
> *index)
> > +{
> > + size_t i;
> > + AppleGFXMMIOMappedRegion *mapped_region;
> > +
> > + for (i = 0; i < regions->len; ++i) {
> > + mapped_region = &g_array_index(regions,
> AppleGFXMMIOMappedRegion, i);
> > + if (va >= mapped_region->host_virtual_start &&
> > + va < mapped_region->host_virtual_end) {
> > + *index = i;> + return mapped_region;
> > + }
> > + }
> > + return NULL;
> > +}
> > +
> > +static void apple_gfx_mmio_unmap_surface_memory(void *opaque)
> > +{
> > + AppleGFXUnmapSurfaceMemoryJob *job = opaque;
> > + AppleGFXMMIOState *s = job->state;
> > + uintptr_t mem = (uintptr_t)job->virtual_address;
> > + GArray *regions = s->iosfc_mapped_regions;
> > + size_t region_index;
> > + AppleGFXMMIOMappedRegion *mapped_region =
> > + find_mapped_region_containing(regions, mem, ®ion_index);
> > +
> > + if (mapped_region) {
> > + trace_apple_gfx_iosfc_unmap_memory_region(mem, region_index,
> mapped_region->map_count, mapped_region->region);
> > + if (--mapped_region->map_count == 0) {
> > + memory_region_unref(mapped_region->region);
> > + g_array_remove_index_fast(regions, region_index);
> > + }
> > + } else {
> > + qemu_log_mask(LOG_GUEST_ERROR, "%s: memory at %p to be unmapped
> not "
> > + "found in any of %u mapped regions.\n",
> > + __func__,
> > + job->virtual_address, regions->len);
> > + }
> > +
> > + qemu_mutex_lock(&s->common.job_mutex);
> > + job->done = true;
> > + qemu_cond_broadcast(&s->iosfc_unmap_job_cond);
> > + qemu_mutex_unlock(&s->common.job_mutex);
> > +}
> > +
> > +static PGIOSurfaceHostDevice *apple_gfx_prepare_iosurface_host_device(
> > + AppleGFXMMIOState *s)
> > +{
> > + PGIOSurfaceHostDeviceDescriptor *iosfc_desc =
> > + [PGIOSurfaceHostDeviceDescriptor new];
> > + PGIOSurfaceHostDevice *iosfc_host_dev = nil;
> > +
> > + iosfc_desc.mapMemory =
> > + ^bool(uint64_t phys, uint64_t len, bool ro, void **va, void *e,
> void *f) {
> > + AppleGFXMapSurfaceMemoryJob job = {
> > + .guest_physical_address = phys, .guest_physical_length
> = len,
> > + .read_only = ro, .state = s,
> > + };
> > +
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > + apple_gfx_mmio_map_surface_memory,
> &job);
> > + apple_gfx_await_bh_job(&s->common, &s->iosfc_map_job_cond,
> &job.done);
> > +
> > + *va = job.result_mem;
> > +
> > + trace_apple_gfx_iosfc_map_memory(phys, len, ro, va, e, f,
> *va,
> > + job.success);
> > +
> > + return job.success;
> > + };
> > +
> > + iosfc_desc.unmapMemory =
> > + ^bool(void *va, void *b, void *c, void *d, void *e, void *f) {
> > + AppleGFXUnmapSurfaceMemoryJob job = { va, s };
> > + trace_apple_gfx_iosfc_unmap_memory(va, b, c, d, e, f);
> > +
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > +
> apple_gfx_mmio_unmap_surface_memory, &job);
> > + apple_gfx_await_bh_job(&s->common,
> &s->iosfc_unmap_job_cond, &job.done);
> > +
> > + return true;
> > + };
> > +
> > + iosfc_desc.raiseInterrupt = ^bool(uint32_t vector) {
> > + trace_apple_gfx_iosfc_raise_irq(vector);
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > + raise_irq, &s->irq_iosfc);
> > + return true;
> > + };
> > +
> > + iosfc_host_dev =
> > + [[PGIOSurfaceHostDevice alloc] initWithDescriptor:iosfc_desc];
> > + [iosfc_desc release];
> > + return iosfc_host_dev;
> > +}
> > +
> > +static void apple_gfx_mmio_realize(DeviceState *dev, Error **errp)
> > +{
> > + @autoreleasepool {
> > + AppleGFXMMIOState *s = APPLE_GFX_MMIO(dev);
> > + PGDeviceDescriptor *desc = [PGDeviceDescriptor new];
> > +
> > + desc.raiseInterrupt = ^(uint32_t vector) {
> > + trace_apple_gfx_raise_irq(vector);
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > + raise_irq, &s->irq_gfx);
> > + };
> > +
> > + desc.usingIOSurfaceMapper = true;
> > + s->pgiosfc = apple_gfx_prepare_iosurface_host_device(s);
> > +
> > + s->iosfc_mapped_regions =
> > + g_array_sized_new(false /* no termination */, true /* clear
> */,
> > + sizeof(AppleGFXMMIOMappedRegion),
> > + 2 /* Usually no more RAM regions*/);
> > +
> > + apple_gfx_common_realize(&s->common, desc, errp);
> > + qemu_cond_init(&s->iosfc_map_job_cond);
> > + qemu_cond_init(&s->iosfc_unmap_job_cond);
> > +
> > + [desc release];
> > + desc = nil;
> > + }
> > +}
> > +
> > +static void apple_gfx_mmio_init(Object *obj)
> > +{
> > + AppleGFXMMIOState *s = APPLE_GFX_MMIO(obj);
> > +
> > + apple_gfx_common_init(obj, &s->common, TYPE_APPLE_GFX_MMIO);
> > +
> > + sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->common.iomem_gfx);
> > + memory_region_init_io(&s->iomem_iosfc, obj, &apple_iosfc_ops, s,
> > + TYPE_APPLE_GFX_MMIO, 0x10000);
> > + sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem_iosfc);
> > + sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq_gfx);
> > + sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq_iosfc);
> > +}
> > +
> > +static void apple_gfx_mmio_reset(Object *obj, ResetType type)
> > +{
> > + AppleGFXMMIOState *s = APPLE_GFX_MMIO(obj);
> > + [s->common.pgdev reset];
> > +}
> > +
> > +
> > +static void apple_gfx_mmio_class_init(ObjectClass *klass, void *data)
> > +{
> > + DeviceClass *dc = DEVICE_CLASS(klass);
> > + ResettableClass *rc = RESETTABLE_CLASS(klass);
> > +
> > + rc->phases.hold = apple_gfx_mmio_reset;
> > + dc->hotpluggable = false;
> > + dc->realize = apple_gfx_mmio_realize;
> > +}
> > +
> > +static TypeInfo apple_gfx_mmio_types[] = {
> > + {
> > + .name = TYPE_APPLE_GFX_MMIO,
> > + .parent = TYPE_SYS_BUS_DEVICE,
> > + .instance_size = sizeof(AppleGFXMMIOState),
> > + .class_init = apple_gfx_mmio_class_init,
> > + .instance_init = apple_gfx_mmio_init,
> > + }
> > +};
> > +DEFINE_TYPES(apple_gfx_mmio_types)
> > diff --git a/hw/display/apple-gfx.h b/hw/display/apple-gfx.h
> > new file mode 100644
> > index 00000000000..ef34e8160c8
> > --- /dev/null
> > +++ b/hw/display/apple-gfx.h
> > @@ -0,0 +1,79 @@
> > +/*
> > + * Data structures and functions shared between variants of the macOS
> > + * ParavirtualizedGraphics.framework based apple-gfx display adapter.
> > + *
> > + * SPDX-License-Identifier: GPL-2.0-or-later
> > + */
> > +
> > +#ifndef QEMU_APPLE_GFX_H
> > +#define QEMU_APPLE_GFX_H
> > +
> > +#define TYPE_APPLE_GFX_MMIO "apple-gfx-mmio"
> > +#define TYPE_APPLE_GFX_PCI "apple-gfx-pci"
> > +
> > +#include "qemu/osdep.h"
> > +#include <dispatch/dispatch.h>
> > +#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
> > +#include "qemu/typedefs.h"
> > +#include "exec/memory.h"
> > +#include "ui/surface.h"
> > +
> > +@class PGDeviceDescriptor;
> > +@protocol PGDevice;
> > +@protocol PGDisplay;
> > +@protocol MTLDevice;
> > +@protocol MTLTexture;
> > +@protocol MTLCommandQueue;
> > +
> > +typedef QTAILQ_HEAD(, PGTask_s) PGTaskList;
> > +
> > +typedef struct AppleGFXState {
> > + /* Initialised on init/realize() */
> > + MemoryRegion iomem_gfx;
> > + id<PGDevice> pgdev;
> > + id<PGDisplay> pgdisp;
> > + QemuConsole *con;
> > + id<MTLDevice> mtl;
> > + id<MTLCommandQueue> mtl_queue;
> > + dispatch_queue_t render_queue;
> > + /*
> > + * QemuMutex & QemuConds for awaiting completion of PVG
> memory-mapping and
> > + * reading requests after submitting them to run in the AIO context.
> > + * QemuCond (rather than QemuEvent) are used so multiple concurrent
> jobs
> > + * can be handled safely.
> > + * The state associated with each job is tracked in a AppleGFX*Job
> struct
> > + * for each kind of job; instances are allocated on the caller's
> stack.
> > + * This struct also contains the completion flag which is used in
> > + * conjunction with the condition variable.
> > + */
> > + QemuMutex job_mutex;
> > + QemuCond task_map_job_cond;
> > + QemuCond mem_read_job_cond;
> > +
> > + /* tasks is protected by task_mutex */
> > + QemuMutex task_mutex;
> > + PGTaskList tasks;
> > +
> > + /* Mutable state (BQL) */
> > + QEMUCursor *cursor;
> > + bool cursor_show;
> > + bool gfx_update_requested;
> > + bool new_frame_ready;
> > + bool using_managed_texture_storage;
> > + int32_t pending_frames;
> > + void *vram;
> > + DisplaySurface *surface;
> > + id<MTLTexture> texture;
> > +} AppleGFXState;
> > +
> > +void apple_gfx_common_init(Object *obj, AppleGFXState *s, const char*
> obj_name);
> > +void apple_gfx_common_realize(AppleGFXState *s, PGDeviceDescriptor
> *desc,
> > + Error **errp);
> > +uintptr_t apple_gfx_host_address_for_gpa_range(uint64_t guest_physical,
> > + uint64_t length, bool
> read_only,
> > + MemoryRegion
> **mapping_in_region);
> > +void apple_gfx_await_bh_job(AppleGFXState *s, QemuCond *job_cond,
> > + bool *job_done_flag);
> > +
> > +#endif
> > +
> > diff --git a/hw/display/apple-gfx.m b/hw/display/apple-gfx.m
> > new file mode 100644
> > index 00000000000..101b38e8a6e
> > --- /dev/null
> > +++ b/hw/display/apple-gfx.m
> > @@ -0,0 +1,773 @@
> > +/*
> > + * QEMU Apple ParavirtualizedGraphics.framework device
> > + *
> > + * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights
> Reserved.
> > + *
> > + * This work is licensed under the terms of the GNU GPL, version 2 or
> later.
> > + * See the COPYING file in the top-level directory.
> > + *
> > + * SPDX-License-Identifier: GPL-2.0-or-later
> > + *
> > + * ParavirtualizedGraphics.framework is a set of libraries that macOS
> provides
> > + * which implements 3d graphics passthrough to the host as well as a
> > + * proprietary guest communication channel to drive it. This device
> model
> > + * implements support to drive that library from within QEMU.
> > + */
> > +
> > +#include "qemu/osdep.h"
> > +#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
> > +#include <mach/mach_vm.h>
> > +#include "apple-gfx.h"
> > +#include "trace.h"
> > +#include "qemu-main.h"
> > +#include "exec/address-spaces.h"
> > +#include "migration/blocker.h"
> > +#include "monitor/monitor.h"
> > +#include "qemu/main-loop.h"
> > +#include "qemu/cutils.h"
> > +#include "qemu/log.h"
> > +#include "qapi/visitor.h"
> > +#include "qapi/error.h"
> > +#include "sysemu/dma.h"
> > +#include "ui/console.h"
> > +
> > +static const PGDisplayCoord_t apple_gfx_modes[] = {
> > + { .x = 1440, .y = 1080 },
> > + { .x = 1280, .y = 1024 },
> > +};
> > +
> > +/* This implements a type defined in
> <ParavirtualizedGraphics/PGDevice.h>
> > + * which is opaque from the framework's point of view. Typedef PGTask_t
> already
> > + * exists in the framework headers. */
> > +struct PGTask_s {
> > + QTAILQ_ENTRY(PGTask_s) node;
> > + AppleGFXState *s;
> > + mach_vm_address_t address;
> > + uint64_t len;
> > + /*
> > + * All unique MemoryRegions for which a mapping has been created in
> in this
> > + * task, and on which we have thus called memory_region_ref().
> There are
> > + * usually very few regions of system RAM in total, so we expect
> this array
> > + * to be very short. Therefore, no need for sorting or fancy search
> > + * algorithms, linear search will do. */
> > + GArray *mapped_regions;
>
> Use GPtrArray.
>
>
Thanks, I wasn't aware of this variant.
> > +};
> > +
> > +static Error *apple_gfx_mig_blocker;
> > +
> > +static void apple_gfx_render_frame_completed(AppleGFXState *s,
> > + uint32_t width, uint32_t
> height);
> > +
> > +static dispatch_queue_t get_background_queue(void)
> > +{
> > + return dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,
> 0);
> > +}
> > +
> > +static PGTask_t *apple_gfx_new_task(AppleGFXState *s, uint64_t len)
> > +{
> > + mach_vm_address_t task_mem;
> > + PGTask_t *task;
> > + kern_return_t r;
> > +
> > + r = mach_vm_allocate(mach_task_self(), &task_mem, len,
> VM_FLAGS_ANYWHERE);
> > + if (r != KERN_SUCCESS) {
> > + return NULL;
> > + }
> > +
> > + task = g_new0(PGTask_t, 1);
> > + task->s = s;
> > + task->address = task_mem;
> > + task->len = len;
> > + task->mapped_regions = g_array_sized_new(false /* no termination */,
> > + true /* clear */,
> > + sizeof(MemoryRegion *),
> > + 2 /* Usually no more RAM
> regions*/);
> > +
> > + QEMU_LOCK_GUARD(&s->task_mutex);
> > + QTAILQ_INSERT_TAIL(&s->tasks, task, node);
> > +
> > + return task;
> > +}
> > +
> > +typedef struct AppleGFXIOJob {
> > + AppleGFXState *state;
> > + uint64_t offset;
> > + uint64_t value;
> > + bool completed;
> > +} AppleGFXIOJob;
> > +
> > +static void apple_gfx_do_read(void *opaque)
> > +{
> > + AppleGFXIOJob *job = opaque;
> > + job->value = [job->state->pgdev mmioReadAtOffset:job->offset];
> > + qatomic_set(&job->completed, true);
> > + aio_wait_kick();
> > +}
> > +
> > +static uint64_t apple_gfx_read(void *opaque, hwaddr offset, unsigned
> size)
> > +{
> > + AppleGFXIOJob job = {
> > + .state = opaque,
> > + .offset = offset,
> > + .completed = false,
> > + };
> > + dispatch_queue_t queue = get_background_queue();
> > +
> > + dispatch_async_f(queue, &job, apple_gfx_do_read);
> > + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> > +
> > + trace_apple_gfx_read(offset, job.value);
> > + return job.value;
> > +}
> > +
> > +static void apple_gfx_do_write(void *opaque)
> > +{
> > + AppleGFXIOJob *job = opaque;
> > + [job->state->pgdev mmioWriteAtOffset:job->offset value:job->value];
> > + qatomic_set(&job->completed, true);
> > + aio_wait_kick();
> > +}
> > +
> > +static void apple_gfx_write(void *opaque, hwaddr offset, uint64_t val,
> > + unsigned size)
> > +{
> > + /* The methods mmioReadAtOffset: and especially mmioWriteAtOffset:
> can
> > + * trigger and block on operations on other dispatch queues, which
> in turn
> > + * may call back out on one or more of the callback blocks. For
> this reason,
> > + * and as we are holding the BQL, we invoke the I/O methods on a
> pool
> > + * thread and handle AIO tasks while we wait. Any work in the
> callbacks
> > + * requiring the BQL will in turn schedule BHs which this thread
> will
> > + * process while waiting. */
> > + AppleGFXIOJob job = {
> > + .state = opaque,
> > + .offset = offset,
> > + .value = val,
> > + .completed = false,
> > + };
> > + dispatch_queue_t queue = get_background_queue();
> > +
> > + dispatch_async_f(queue, &job, apple_gfx_do_write);
> > + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> > +
> > + trace_apple_gfx_write(offset, val);
> > +}
> > +
> > +static const MemoryRegionOps apple_gfx_ops = {
> > + .read = apple_gfx_read,
> > + .write = apple_gfx_write,
> > + .endianness = DEVICE_LITTLE_ENDIAN,
> > + .valid = {
> > + .min_access_size = 4,
> > + .max_access_size = 8,
> > + },
> > + .impl = {
> > + .min_access_size = 4,
> > + .max_access_size = 4,
> > + },
> > +};
> > +
> > +static void apple_gfx_render_new_frame_bql_unlock(AppleGFXState *s)
> > +{
> > + BOOL r;
> > + bool managed_texture = s->using_managed_texture_storage;
> > + uint32_t width = surface_width(s->surface);
> > + uint32_t height = surface_height(s->surface);
> > + MTLRegion region = MTLRegionMake2D(0, 0, width, height);
> > + id<MTLCommandBuffer> command_buffer = [s->mtl_queue commandBuffer];
> > + id<MTLTexture> texture = s->texture;
> > +
> > + assert(bql_locked());
> > + [texture retain];
> > +
> > + bql_unlock();
> > +
> > + /* This is not safe to call from the BQL due to PVG-internal locks
> causing
> > + * deadlocks. */
> > + r = [s->pgdisp encodeCurrentFrameToCommandBuffer:command_buffer
> > + texture:texture
> > + region:region];
> > + if (!r) {
> > + [texture release];
> > + bql_lock();
> > + --s->pending_frames;
> > + bql_unlock();
> > + qemu_log_mask(LOG_GUEST_ERROR,
> > + "%s:
> encodeCurrentFrameToCommandBuffer:texture:region: "
> > + "failed\n", __func__);
> > + return;
> > + }
> > +
> > + if (managed_texture) {
> > + /* "Managed" textures exist in both VRAM and RAM and must be
> synced. */
> > + id<MTLBlitCommandEncoder> blit = [command_buffer
> blitCommandEncoder];
> > + [blit synchronizeResource:texture];
> > + [blit endEncoding];
> > + }
> > + [texture release];
> > + [command_buffer addCompletedHandler:
> > + ^(id<MTLCommandBuffer> cb)
> > + {
> > + dispatch_async(s->render_queue, ^{
> > + apple_gfx_render_frame_completed(s, width, height);
> > + });
> > + }];
> > + [command_buffer commit];
> > +}
> > +
> > +static void copy_mtl_texture_to_surface_mem(id<MTLTexture> texture,
> void *vram)
> > +{
> > + /* TODO: Skip this entirely on a pure Metal or headless/guest-only
> > + * rendering path, else use a blit command encoder? Needs careful
> > + * (double?) buffering design. */
> > + size_t width = texture.width, height = texture.height;
> > + MTLRegion region = MTLRegionMake2D(0, 0, width, height);
> > + [texture getBytes:vram
> > + bytesPerRow:(width * 4)
> > + bytesPerImage:(width * height * 4)
> > + fromRegion:region
> > + mipmapLevel:0
> > + slice:0];
> > +}
> > +
> > +static void apple_gfx_render_frame_completed(AppleGFXState *s,
> > + uint32_t width, uint32_t
> height)
> > +{
> > + bql_lock();
> > + --s->pending_frames;
> > + assert(s->pending_frames >= 0);
> > +
> > + /* Only update display if mode hasn't changed since we started
> rendering. */
> > + if (width == surface_width(s->surface) &&
> > + height == surface_height(s->surface)) {
> > + copy_mtl_texture_to_surface_mem(s->texture, s->vram);
> > + if (s->gfx_update_requested) {
> > + s->gfx_update_requested = false;
> > + dpy_gfx_update_full(s->con);
> > + graphic_hw_update_done(s->con);
> > + s->new_frame_ready = false;
> > + } else {
> > + s->new_frame_ready = true;
> > + }
> > + }
> > + if (s->pending_frames > 0) {
> > + apple_gfx_render_new_frame_bql_unlock(s);
> > + } else {
> > + bql_unlock();
> > + }
> > +}
> > +
> > +static void apple_gfx_fb_update_display(void *opaque)
> > +{
> > + AppleGFXState *s = opaque;
> > +
> > + assert(bql_locked());
> > + if (s->new_frame_ready) {
> > + dpy_gfx_update_full(s->con);
> > + s->new_frame_ready = false;
> > + graphic_hw_update_done(s->con);
> > + } else if (s->pending_frames > 0) {
> > + s->gfx_update_requested = true;
> > + } else {
> > + graphic_hw_update_done(s->con);
> > + }
> > +}
> > +
> > +static const GraphicHwOps apple_gfx_fb_ops = {
> > + .gfx_update = apple_gfx_fb_update_display,
> > + .gfx_update_async = true,
> > +};
> > +
> > +static void update_cursor(AppleGFXState *s)
> > +{
> > + assert(bql_locked());
> > + dpy_mouse_set(s->con, s->pgdisp.cursorPosition.x,
> > + s->pgdisp.cursorPosition.y, s->cursor_show);
> > +}
> > +
> > +static void set_mode(AppleGFXState *s, uint32_t width, uint32_t height)
> > +{
> > + MTLTextureDescriptor *textureDescriptor;
> > +
> > + if (s->surface &&
> > + width == surface_width(s->surface) &&
> > + height == surface_height(s->surface)) {
> > + return;
> > + }
> > +
> > + g_free(s->vram);
> > + [s->texture release];
> > +
> > + s->vram = g_malloc0_n(width * height, 4);
> > + s->surface = qemu_create_displaysurface_from(width, height,
> PIXMAN_LE_a8r8g8b8,
> > + width * 4, s->vram);
>
> Use qemu_create_displaysurface() and let DisplaySurface manage the
> memory for us.
>
Yeah, I guess the default pixel format is a close enough match, and now
that the texture content is copied synchronously under the BQL we don't
need to deal with the memory ourselves anymore.
> > +
> > + @autoreleasepool {
> > + textureDescriptor =
> > + [MTLTextureDescriptor
> > +
> texture2DDescriptorWithPixelFormat:MTLPixelFormatBGRA8Unorm
> > + width:width
> > + height:height
> > + mipmapped:NO];
> > + textureDescriptor.usage = s->pgdisp.minimumTextureUsage;
> > + s->texture = [s->mtl
> newTextureWithDescriptor:textureDescriptor];
> > + }
> > +
> > + s->using_managed_texture_storage =
> > + (s->texture.storageMode == MTLStorageModeManaged);
> > + dpy_gfx_replace_surface(s->con, s->surface);
> > +}
> > +
> > +static void create_fb(AppleGFXState *s)
> > +{
> > + s->con = graphic_console_init(NULL, 0, &apple_gfx_fb_ops, s);
> > + set_mode(s, 1440, 1080);
> > +
> > + s->cursor_show = true;
> > +}
> > +
> > +static size_t apple_gfx_get_default_mmio_range_size(void)
> > +{
> > + size_t mmio_range_size;
> > + @autoreleasepool {
> > + PGDeviceDescriptor *desc = [PGDeviceDescriptor new];
> > + mmio_range_size = desc.mmioLength;
> > + [desc release];
> > + }
> > + return mmio_range_size;
> > +}
> > +
> > +void apple_gfx_common_init(Object *obj, AppleGFXState *s, const char*
> obj_name)
> > +{
> > + size_t mmio_range_size = apple_gfx_get_default_mmio_range_size();
> > +
> > + trace_apple_gfx_common_init(obj_name, mmio_range_size);
> > + memory_region_init_io(&s->iomem_gfx, obj, &apple_gfx_ops, s,
> obj_name,
> > + mmio_range_size);
> > +
> > + /* TODO: PVG framework supports serialising device state: integrate
> it! */
> > +}
> > +
> > +typedef struct AppleGFXMapMemoryJob {
> > + AppleGFXState *state;
> > + PGTask_t *task;
> > + uint64_t virtual_offset;
> > + PGPhysicalMemoryRange_t *ranges;
> > + uint32_t range_count;
> > + bool read_only;
> > + bool success;
> > + bool done;
> > +} AppleGFXMapMemoryJob;
> > +
> > +uintptr_t apple_gfx_host_address_for_gpa_range(uint64_t guest_physical,
> > + uint64_t length, bool
> read_only,
> > + MemoryRegion
> **mapping_in_region)
> > +{
> > + MemoryRegion *ram_region;
> > + uintptr_t host_address;
> > + hwaddr ram_region_offset = 0;
> > + hwaddr ram_region_length = length;
> > +
> > + ram_region = address_space_translate(&address_space_memory,
> > + guest_physical,
> > + &ram_region_offset,
> > + &ram_region_length, !read_only,
> > + MEMTXATTRS_UNSPECIFIED);
> > +
> > + if (!ram_region || ram_region_length < length ||
> > + !memory_access_is_direct(ram_region, !read_only)) {
> > + return 0;
> > + }
> > +
> > + host_address = (uintptr_t)memory_region_get_ram_ptr(ram_region);
> > + if (host_address == 0) {
> > + return 0;
> > + }
> > + host_address += ram_region_offset;
> > + *mapping_in_region = ram_region;
> > + return host_address;
> > +}
> > +
> > +/* Returns false if the region is already in the array */
> > +static bool add_new_region(GArray *regions, MemoryRegion *region)
> > +{
> > + MemoryRegion *existing;
> > + size_t i;
> > +
> > + for (i = 0; i < regions->len; ++i) {
> > + existing = g_array_index(regions, MemoryRegion *, i);
> > + if (existing == region) {
> > + return false;
> > + }
> > + }
> > + g_array_append_val(regions, region);
> > + return true;
> > +}
> > +
> > +static void apple_gfx_map_memory(void *opaque)
> > +{
> > + AppleGFXMapMemoryJob *job = opaque;
> > + AppleGFXState *s = job->state;
> > + PGTask_t *task = job->task;
> > + uint32_t range_count = job->range_count;
> > + uint64_t virtual_offset = job->virtual_offset;
> > + PGPhysicalMemoryRange_t *ranges = job->ranges;
> > + bool read_only = job->read_only;
> > + kern_return_t r;
> > + mach_vm_address_t target, source;
> > + vm_prot_t cur_protection, max_protection;
> > + bool success = true;
> > + MemoryRegion *region;
> > +
> > + g_assert(bql_locked());
>
> It seems this function only requires RCU read lock and we can avoid
> using bottom half.
>
Yes, I think that should work. We'll still need something to serialise
access to the task's mapped_regions array, but we can use the task_mutex
instead of the BQL for that.
I guess dma_memory_read() also only needs an RCU guard, so readMemory
should also be safe to run without the BQL?
> > +
> > + trace_apple_gfx_map_memory(task, range_count, virtual_offset,
> read_only);
> > + for (int i = 0; i < range_count; i++) {
> > + PGPhysicalMemoryRange_t *range = &ranges[i];
> > +
> > + target = task->address + virtual_offset;
> > + virtual_offset += range->physicalLength;
> > +
> > + trace_apple_gfx_map_memory_range(i, range->physicalAddress,
> > + range->physicalLength);
> > +
> > + region = NULL;
> > + source =
> apple_gfx_host_address_for_gpa_range(range->physicalAddress,
> > +
> range->physicalLength,
> > + read_only,
> ®ion);
> > + if (source == 0) {
> > + success = false;
> > + continue;
> > + }
> > +
> > + if (add_new_region(task->mapped_regions, region)) {
> > + memory_region_ref(region);
> > + }
> > +
> > + cur_protection = 0;
> > + max_protection = 0;
> > + // Map guest RAM at range->physicalAddress into PG task memory
> range
> > + r = mach_vm_remap(mach_task_self(),
> > + &target, range->physicalLength, vm_page_size
> - 1,
> > + VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE,
> > + mach_task_self(),
> > + source, false /* shared mapping, no copy */,
> > + &cur_protection, &max_protection,
> > + VM_INHERIT_COPY);
> > + trace_apple_gfx_remap(r, source, target);
> > + g_assert(r == KERN_SUCCESS);
> > + }
> > +
> > + qemu_mutex_lock(&s->job_mutex);
> > + job->success = success;
> > + job->done = true;
> > + qemu_cond_broadcast(&s->task_map_job_cond);
> > + qemu_mutex_unlock(&s->job_mutex);
> > +}
> > +
> > +void apple_gfx_await_bh_job(AppleGFXState *s, QemuCond *job_cond, bool
> *job_done_flag)
> > +{
> > + qemu_mutex_lock(&s->job_mutex);
> > + while (!*job_done_flag) {
> > + qemu_cond_wait(job_cond, &s->job_mutex);
> > + }
> > + qemu_mutex_unlock(&s->job_mutex);
> > +}
> > +
> > +typedef struct AppleGFXReadMemoryJob {
> > + AppleGFXState *s;
> > + hwaddr physical_address;
> > + uint64_t length;
> > + void *dst;
> > + bool done;
> > + bool success;
> > +} AppleGFXReadMemoryJob;
> > +
> > +static void apple_gfx_do_read_memory(void *opaque)
> > +{
> > + AppleGFXReadMemoryJob *job = opaque;
> > + AppleGFXState *s = job->s;
> > + MemTxResult r;
> > +
> > + r = dma_memory_read(&address_space_memory, job->physical_address,
> > + job->dst, job->length, MEMTXATTRS_UNSPECIFIED);
> > + job->success = r == MEMTX_OK;
> > +
> > + qemu_mutex_lock(&s->job_mutex);
> > + job->done = true;
> > + qemu_cond_broadcast(&s->mem_read_job_cond);
> > + qemu_mutex_unlock(&s->job_mutex);
> > +}
> > +
> > +static bool apple_gfx_read_memory(AppleGFXState *s, hwaddr
> physical_address,
> > + uint64_t length, void *dst)
> > +{
> > + AppleGFXReadMemoryJob job = {
> > + s, physical_address, length, dst
> > + };
> > +
> > + trace_apple_gfx_read_memory(physical_address, length, dst);
> > +
> > + /* Traversing the memory map requires RCU/BQL, so do it in a BH. */
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> apple_gfx_do_read_memory,
> > + &job);
> > + apple_gfx_await_bh_job(s, &s->mem_read_job_cond, &job.done);
> > + return job.success;
> > +}
> > +
> > +static void apple_gfx_task_destroy(AppleGFXState *s, PGTask_t *task)
> > +{
> > + GArray *regions = task->mapped_regions;
> > + MemoryRegion *region;
> > + size_t i;
> > +
> > + for (i = 0; i < regions->len; ++i) {
> > + region = g_array_index(regions, MemoryRegion *, i);
> > + memory_region_unref(region);
> > + }
> > + g_array_unref(regions);
> > +
> > + mach_vm_deallocate(mach_task_self(), task->address, task->len);
> > +
> > + QEMU_LOCK_GUARD(&s->task_mutex);
> > + QTAILQ_REMOVE(&s->tasks, task, node);
> > + g_free(task);
> > +}
> > +
> > +static void apple_gfx_register_task_mapping_handlers(AppleGFXState *s,
> > + PGDeviceDescriptor
> *desc)
> > +{
> > + desc.createTask = ^(uint64_t vmSize, void * _Nullable * _Nonnull
> baseAddress) {
> > + PGTask_t *task = apple_gfx_new_task(s, vmSize);
> > + *baseAddress = (void *)task->address;
> > + trace_apple_gfx_create_task(vmSize, *baseAddress);
> > + return task;
> > + };
> > +
> > + desc.destroyTask = ^(PGTask_t * _Nonnull task) {
> > + trace_apple_gfx_destroy_task(task, task->mapped_regions->len);
> > +
> > + apple_gfx_task_destroy(s, task);
> > + };
> > +
> > + desc.mapMemory = ^bool(PGTask_t * _Nonnull task, uint32_t
> range_count,
> > + uint64_t virtual_offset, bool read_only,
> > + PGPhysicalMemoryRange_t * _Nonnull ranges) {
> > + AppleGFXMapMemoryJob job = {
> > + .state = s,
> > + .task = task, .ranges = ranges, .range_count = range_count,
> > + .read_only = read_only, .virtual_offset = virtual_offset,
> > + .done = false, .success = true,
> > + };
> > + if (range_count > 0) {
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > + apple_gfx_map_memory, &job);
> > + apple_gfx_await_bh_job(s, &s->task_map_job_cond, &job.done);
> > + }
> > + return job.success;
> > + };
> > +
> > + desc.unmapMemory = ^bool(PGTask_t * _Nonnull task, uint64_t
> virtualOffset,
> > + uint64_t length) {
> > + kern_return_t r;
> > + mach_vm_address_t range_address;
> > +
> > + trace_apple_gfx_unmap_memory(task, virtualOffset, length);
> > +
> > + /* Replace task memory range with fresh pages, undoing the
> mapping
> > + * from guest RAM. */
> > + range_address = task->address + virtualOffset;
> > + r = mach_vm_allocate(mach_task_self(), &range_address, length,
> > + VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE);
> > + g_assert(r == KERN_SUCCESS);> +
> > + return true;
> > + };
> > +
> > + desc.readMemory = ^bool(uint64_t physical_address, uint64_t length,
> > + void * _Nonnull dst) {
> > + return apple_gfx_read_memory(s, physical_address, length, dst);
> > + };
> > +}
> > +
> > +static PGDisplayDescriptor
> *apple_gfx_prepare_display_descriptor(AppleGFXState *s)
> > +{
> > + PGDisplayDescriptor *disp_desc = [PGDisplayDescriptor new];
> > +
> > + disp_desc.name = @"QEMU display";
> > + disp_desc.sizeInMillimeters = NSMakeSize(400., 300.); /* A 20"
> display */
> > + disp_desc.queue = dispatch_get_main_queue();
> > + disp_desc.newFrameEventHandler = ^(void) {
> > + trace_apple_gfx_new_frame();
> > + dispatch_async(s->render_queue, ^{
> > + /* Drop frames if we get too far ahead. */
> > + bql_lock();
> > + if (s->pending_frames >= 2) {
> > + bql_unlock();
> > + return;
> > + }
> > + ++s->pending_frames;
> > + if (s->pending_frames > 1) {
> > + bql_unlock();
> > + return;
> > + }
> > + @autoreleasepool {
> > + apple_gfx_render_new_frame_bql_unlock(s);
> > + }
> > + });
> > + };
> > + disp_desc.modeChangeHandler = ^(PGDisplayCoord_t sizeInPixels,
> > + OSType pixelFormat) {
> > + trace_apple_gfx_mode_change(sizeInPixels.x, sizeInPixels.y);
> > +
> > + BQL_LOCK_GUARD();
> > + set_mode(s, sizeInPixels.x, sizeInPixels.y);
> > + };
> > + disp_desc.cursorGlyphHandler = ^(NSBitmapImageRep *glyph,
> > + PGDisplayCoord_t hotSpot) {
> > + [glyph retain];
> > + dispatch_async(get_background_queue(), ^{
> > + BQL_LOCK_GUARD();
>
> This would be better off using a bottom half since it is going to take
> the BQL.
>
Yeah, I guess that should work now that we've eliminated any calls into PVG
while holding the BQL.
> > + uint32_t bpp = glyph.bitsPerPixel;
> > + size_t width = glyph.pixelsWide;
> > + size_t height = glyph.pixelsHigh;
> > + size_t padding_bytes_per_row = glyph.bytesPerRow - width *
> 4;
> > + const uint8_t* px_data = glyph.bitmapData;
> > +
> > + trace_apple_gfx_cursor_set(bpp, width, height);
> > +
> > + if (s->cursor) {
> > + cursor_unref(s->cursor);
> > + s->cursor = NULL;
> > + }
> > +
> > + if (bpp == 32) { /* Shouldn't be anything else, but just to
> be safe...*/
> > + s->cursor = cursor_alloc(width, height);
> > + s->cursor->hot_x = hotSpot.x;
> > + s->cursor->hot_y = hotSpot.y;
> > +
> > + uint32_t *dest_px = s->cursor->data;
> > +
> > + for (size_t y = 0; y < height; ++y) {
> > + for (size_t x = 0; x < width; ++x) {
> > + /* NSBitmapImageRep's red & blue channels are
> swapped
> > + * compared to QEMUCursor's. */
> > + *dest_px =
> > + (px_data[0] << 16u) |
> > + (px_data[1] << 8u) |
> > + (px_data[2] << 0u) |
> > + (px_data[3] << 24u);
> > + ++dest_px;
> > + px_data += 4;
> > + }
> > + px_data += padding_bytes_per_row;
> > + }
> > + dpy_cursor_define(s->con, s->cursor);
> > + update_cursor(s);
> > + }
> > + [glyph release];
> > + });
> > + };
> > + disp_desc.cursorShowHandler = ^(BOOL show) {
> > + dispatch_async(get_background_queue(), ^{
> > + BQL_LOCK_GUARD();
> > + trace_apple_gfx_cursor_show(show);
> > + s->cursor_show = show;
> > + update_cursor(s);
> > + });
> > + };
> > + disp_desc.cursorMoveHandler = ^(void) {
> > + dispatch_async(get_background_queue(), ^{
> > + BQL_LOCK_GUARD();
> > + trace_apple_gfx_cursor_move();
> > + update_cursor(s);
> > + });
> > + };
> > +
> > + return disp_desc;
> > +}
> > +
> > +static NSArray<PGDisplayMode*>*
> apple_gfx_prepare_display_mode_array(void)
> > +{
> > + PGDisplayMode *modes[ARRAY_SIZE(apple_gfx_modes)];
> > + NSArray<PGDisplayMode*>* mode_array = nil;
> > + int i;
> > +
> > + for (i = 0; i < ARRAY_SIZE(apple_gfx_modes); i++) {
> > + modes[i] =
> > + [[PGDisplayMode alloc]
> initWithSizeInPixels:apple_gfx_modes[i] refreshRateInHz:60.];
> > + }
> > +
> > + mode_array = [NSArray arrayWithObjects:modes
> count:ARRAY_SIZE(apple_gfx_modes)];
> > +
> > + for (i = 0; i < ARRAY_SIZE(apple_gfx_modes); i++) {
> > + [modes[i] release];
> > + modes[i] = nil;
> > + }
> > +
> > + return mode_array;
> > +}
> > +
> > +static id<MTLDevice> copy_suitable_metal_device(void)
> > +{
> > + id<MTLDevice> dev = nil;
> > + NSArray<id<MTLDevice>> *devs = MTLCopyAllDevices();
> > +
> > + /* Prefer a unified memory GPU. Failing that, pick a non-removable
> GPU. */
> > + for (size_t i = 0; i < devs.count; ++i) {
> > + if (devs[i].hasUnifiedMemory) {
> > + dev = devs[i];
> > + break;
> > + }
> > + if (!devs[i].removable) {
> > + dev = devs[i];
> > + }
> > + }
> > +
> > + if (dev != nil) {
> > + [dev retain];
> > + } else {
> > + dev = MTLCreateSystemDefaultDevice();
> > + }
> > + [devs release];
> > +
> > + return dev;
> > +}
> > +
> > +void apple_gfx_common_realize(AppleGFXState *s, PGDeviceDescriptor
> *desc,
> > + Error **errp)
> > +{
> > + PGDisplayDescriptor *disp_desc = nil;
> > +
> > + if (apple_gfx_mig_blocker == NULL) {
> > + error_setg(&apple_gfx_mig_blocker,
> > + "Migration state blocked by apple-gfx display
> device");
> > + if (migrate_add_blocker(&apple_gfx_mig_blocker, errp) < 0) {
> > + return;
> > + }
> > + }
> > +
> > + qemu_mutex_init(&s->task_mutex);
> > + QTAILQ_INIT(&s->tasks);
> > + s->render_queue = dispatch_queue_create("apple-gfx.render",
> > + DISPATCH_QUEUE_SERIAL);
> > + s->mtl = copy_suitable_metal_device();
> > + s->mtl_queue = [s->mtl newCommandQueue];
> > +
> > + desc.device = s->mtl;
> > +
> > + apple_gfx_register_task_mapping_handlers(s, desc);
> > +
> > + s->pgdev = PGNewDeviceWithDescriptor(desc);
> > +
> > + disp_desc = apple_gfx_prepare_display_descriptor(s);
> > + s->pgdisp = [s->pgdev newDisplayWithDescriptor:disp_desc
> > + port:0 serialNum:1234];
> > + [disp_desc release];
> > + s->pgdisp.modeList = apple_gfx_prepare_display_mode_array();
> > +
> > + create_fb(s);
> > +
> > + qemu_mutex_init(&s->job_mutex);
> > + qemu_cond_init(&s->task_map_job_cond);
> > + qemu_cond_init(&s->mem_read_job_cond);
> > +}
> > diff --git a/hw/display/meson.build b/hw/display/meson.build
> > index 20a94973fa2..619e642905a 100644
> > --- a/hw/display/meson.build
> > +++ b/hw/display/meson.build
> > @@ -61,6 +61,10 @@ system_ss.add(when: 'CONFIG_ARTIST', if_true:
> files('artist.c'))
> >
> > system_ss.add(when: 'CONFIG_ATI_VGA', if_true: [files('ati.c',
> 'ati_2d.c', 'ati_dbg.c'), pixman])
> >
> > +system_ss.add(when: 'CONFIG_MAC_PVG', if_true:
> [files('apple-gfx.m'), pvg, metal])
> > +if cpu == 'aarch64'
> > + system_ss.add(when: 'CONFIG_MAC_PVG_MMIO', if_true:
> [files('apple-gfx-mmio.m'), pvg, metal])
> > +endif
> >
> > if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
> > virtio_gpu_ss = ss.source_set()
> > diff --git a/hw/display/trace-events b/hw/display/trace-events
> > index 781f8a33203..d63fba6d094 100644
> > --- a/hw/display/trace-events
> > +++ b/hw/display/trace-events
> > @@ -191,3 +191,31 @@ dm163_bits_ppi(unsigned dest_width) "dest_width :
> %u"
> > dm163_leds(int led, uint32_t value) "led %d: 0x%x"
> > dm163_channels(int channel, uint8_t value) "channel %d: 0x%x"
> > dm163_refresh_rate(uint32_t rr) "refresh rate %d"
> > +
> > +# apple-gfx.m
> > +apple_gfx_read(uint64_t offset, uint64_t res) "offset=0x%"PRIx64"
> res=0x%"PRIx64
> > +apple_gfx_write(uint64_t offset, uint64_t val) "offset=0x%"PRIx64"
> val=0x%"PRIx64
> > +apple_gfx_create_task(uint32_t vm_size, void *va) "vm_size=0x%x
> base_addr=%p"
> > +apple_gfx_destroy_task(void *task, unsigned int num_mapped_regions)
> "task=%p, task->mapped_regions->len=%u"
> > +apple_gfx_map_memory(void *task, uint32_t range_count, uint64_t
> virtual_offset, uint32_t read_only) "task=%p range_count=0x%x
> virtual_offset=0x%"PRIx64" read_only=%d"
> > +apple_gfx_map_memory_range(uint32_t i, uint64_t phys_addr, uint64_t
> phys_len) "[%d] phys_addr=0x%"PRIx64" phys_len=0x%"PRIx64
> > +apple_gfx_remap(uint64_t retval, uint64_t source, uint64_t target)
> "retval=%"PRId64" source=0x%"PRIx64" target=0x%"PRIx64
> > +apple_gfx_unmap_memory(void *task, uint64_t virtual_offset, uint64_t
> length) "task=%p virtual_offset=0x%"PRIx64" length=0x%"PRIx64
> > +apple_gfx_read_memory(uint64_t phys_address, uint64_t length, void
> *dst) "phys_addr=0x%"PRIx64" length=0x%"PRIx64" dest=%p"
> > +apple_gfx_raise_irq(uint32_t vector) "vector=0x%x"
> > +apple_gfx_new_frame(void) ""
> > +apple_gfx_mode_change(uint64_t x, uint64_t y) "x=%"PRId64" y=%"PRId64
> > +apple_gfx_cursor_set(uint32_t bpp, uint64_t width, uint64_t height)
> "bpp=%d width=%"PRId64" height=0x%"PRId64
> > +apple_gfx_cursor_show(uint32_t show) "show=%d"
> > +apple_gfx_cursor_move(void) ""
> > +apple_gfx_common_init(const char *device_name, size_t mmio_size)
> "device: %s; MMIO size: %zu bytes"
> > +
> > +# apple-gfx-mmio.m
> > +apple_gfx_mmio_iosfc_read(uint64_t offset, uint64_t res)
> "offset=0x%"PRIx64" res=0x%"PRIx64
> > +apple_gfx_mmio_iosfc_write(uint64_t offset, uint64_t val)
> "offset=0x%"PRIx64" val=0x%"PRIx64
> > +apple_gfx_iosfc_map_memory(uint64_t phys, uint64_t len, uint32_t ro,
> void *va, void *e, void *f, void* va_result, int success) "phys=0x%"PRIx64"
> len=0x%"PRIx64" ro=%d va=%p e=%p f=%p -> *va=%p, success = %d"
> > +apple_gfx_iosfc_map_memory_new_region(size_t i, void *region, uint64_t
> start, uint64_t end) "index=%zu, region=%p, 0x%"PRIx64"-0x%"PRIx64
> > +apple_gfx_iosfc_unmap_memory(void *a, void *b, void *c, void *d, void
> *e, void *f) "a=%p b=%p c=%p d=%p e=%p f=%p"
> > +apple_gfx_iosfc_unmap_memory_region(uint64_t mem, size_t region_index,
> uint64_t map_count, void *region) "mapping @ 0x%"PRIx64" in region %zu, map
> count %"PRIu64", memory region %p"
> > +apple_gfx_iosfc_raise_irq(uint32_t vector) "vector=0x%x"
> > +
> > diff --git a/meson.build b/meson.build
> > index f7d45175212..5eab46f704f 100644
> > --- a/meson.build
> > +++ b/meson.build
> > @@ -769,6 +769,8 @@ socket = []
> > version_res = []
> > coref = []
> > iokit = []
> > +pvg = []
> > +metal = []
> > emulator_link_args = []
> > midl = not_found
> > widl = not_found
> > @@ -790,6 +792,8 @@ elif host_os == 'darwin'
> > coref = dependency('appleframeworks', modules: 'CoreFoundation')
> > iokit = dependency('appleframeworks', modules: 'IOKit', required:
> false)
> > host_dsosuf = '.dylib'
> > + pvg = dependency('appleframeworks', modules:
> 'ParavirtualizedGraphics')
> > + metal = dependency('appleframeworks', modules: 'Metal')
> > elif host_os == 'sunos'
> > socket = [cc.find_library('socket'),
> > cc.find_library('nsl'),
>
>
[-- Attachment #2: Type: text/html, Size: 76423 bytes --]
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v5 02/15] hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support
2024-11-01 21:37 ` Phil Dennis-Jordan
@ 2024-11-02 12:38 ` Akihiko Odaki
0 siblings, 0 replies; 20+ messages in thread
From: Akihiko Odaki @ 2024-11-02 12:38 UTC (permalink / raw)
To: Phil Dennis-Jordan
Cc: qemu-devel, agraf, peter.maydell, pbonzini, rad, quic_llindhol,
marcin.juszkiewicz, stefanha, mst, slp, richard.henderson,
eduardo, marcel.apfelbaum, gaosong, jiaxun.yang, chenhuacai,
kwolf, hreitz, philmd, shorne, palmer, alistair.francis, bmeng.cn,
liwei1518, dbarboza, zhiwei_liu, jcmvbkbc, marcandre.lureau,
berrange, qemu-arm, qemu-block, qemu-riscv, Alexander Graf
On 2024/11/02 6:37, Phil Dennis-Jordan wrote:
> Thanks for taking a look at this latest iteration. Some thoughts on your
> comments inline:
>
> On Thu, 31 Oct 2024 at 10:32, Akihiko Odaki <akihiko.odaki@daynix.com
> <mailto:akihiko.odaki@daynix.com>> wrote:
>
> On 2024/10/30 5:58, Phil Dennis-Jordan wrote:
> > MacOS provides a framework (library) that allows any vmm to
> implement a
> > paravirtualized 3d graphics passthrough to the host metal stack
> called
> > ParavirtualizedGraphics.Framework (PVG). The library abstracts away
> > almost every aspect of the paravirtualized device model and only
> provides
> > and receives callbacks on MMIO access as well as to share memory
> address
> > space between the VM and PVG.
> >
> > This patch implements a QEMU device that drives PVG for the VMApple
> > variant of it.
> >
> > Signed-off-by: Alexander Graf <graf@amazon.com
> <mailto:graf@amazon.com>>
> > Co-authored-by: Alexander Graf <graf@amazon.com
> <mailto:graf@amazon.com>>
> >
> > Subsequent changes:
> >
> > * Cherry-pick/rebase conflict fixes, API use updates.
> > * Moved from hw/vmapple/ (useful outside that machine type)
> > * Overhaul of threading model, many thread safety improvements.
> > * Asynchronous rendering.
> > * Memory and object lifetime fixes.
> > * Refactoring to split generic and (vmapple) MMIO variant specific
> > code.
> >
> > Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu
> <mailto:phil@philjordan.eu>>
> > ---
> > v2:
> >
> > * Cherry-pick/rebase conflict fixes
> > * BQL function renaming
> > * Moved from hw/vmapple/ (useful outside that machine type)
> > * Code review comments: Switched to DEFINE_TYPES macro & little
> endian
> > MMIO.
> > * Removed some dead/superfluous code
> > * Mad set_mode thread & memory safe
> > * Added migration blocker due to lack of (de-)serialisation.
> > * Fixes to ObjC refcounting and autorelease pool usage.
> > * Fixed ObjC new/init misuse
> > * Switched to ObjC category extension for private property.
> > * Simplified task memory mapping and made it thread safe.
> > * Refactoring to split generic and vmapple MMIO variant specific
> > code.
> > * Switched to asynchronous MMIO writes on x86-64
> > * Rendering and graphics update are now done asynchronously
> > * Fixed cursor handling
> > * Coding convention fixes
> > * Removed software cursor compositing
> >
> > v3:
> >
> > * Rebased on latest upstream, fixed breakages including
> switching to Resettable methods.
> > * Squashed patches dealing with dGPUs, MMIO area size, and GPU
> picking.
> > * Allow re-entrant MMIO; this simplifies the code and solves
> the divergence
> > between x86-64 and arm64 variants.
> >
> > v4:
> >
> > * Renamed '-vmapple' device variant to '-mmio'
> > * MMIO device type now requires aarch64 host and guest
> > * Complete overhaul of the glue code for making Qemu's and
> > ParavirtualizedGraphics.framework's threading and
> synchronisation models
> > work together. Calls into PVG are from dispatch queues while the
> > BQL-holding initiating thread processes AIO context events;
> callbacks from
> > PVG are scheduled as BHs on the BQL/main AIO context,
> awaiting completion
> > where necessary.
> > * Guest frame rendering state is covered by the BQL, with only
> the PVG calls
> > outside the lock, and serialised on the named render_queue.
> > * Simplified logic for dropping frames in-flight during mode
> changes, fixed
> > bug in pending frames logic.
> > * Addressed smaller code review notes such as: function naming,
> object type
> > declarations, type names/declarations/casts, code formatting,
> #include
> > order, over-cautious ObjC retain/release, what goes in init
> vs realize,
> > etc.
> >
> > v5:
> >
> > * Smaller non-functional fixes in response to review comments,
> such as using
> > NULL for the AIO_WAIT_WHILE context argument, type name
> formatting,
> > deleting leftover debug code, logging improvements, state
> struct field
> > order and documentation improvements, etc.
> > * Instead of a single condition variable for all synchronous BH
> job types,
> > there is now one for each callback block. This reduces the number
> > of threads being awoken unnecessarily to near zero.
> > * MMIO device variant: Unified the BH job for raising interrupts.
> > * Use DMA APIs for PVG framework's guest memory read requests.
> > * Thread safety improvements: ensure mutable AppleGFXState
> fields are not
> > accessed outside the appropriate lock. Added dedicated mutex
> for the task
> > list.
> > * Retain references to MemoryRegions for which there exist
> mappings in each
> > PGTask, and for IOSurface mappings.
> >
> > hw/display/Kconfig | 9 +
> > hw/display/apple-gfx-mmio.m | 387 ++++++++++++++++++
> > hw/display/apple-gfx.h | 79 ++++
> > hw/display/apple-gfx.m | 773 +++++++++++++++++++++++++++++
> +++++++
> > hw/display/meson.build | 4 +
> > hw/display/trace-events | 28 ++
> > meson.build | 4 +
> > 7 files changed, 1284 insertions(+)
> > create mode 100644 hw/display/apple-gfx-mmio.m
> > create mode 100644 hw/display/apple-gfx.h
> > create mode 100644 hw/display/apple-gfx.m
> >
> > diff --git a/hw/display/Kconfig b/hw/display/Kconfig
> > index 2250c740078..6a9b7b19ada 100644
> > --- a/hw/display/Kconfig
> > +++ b/hw/display/Kconfig
> > @@ -140,3 +140,12 @@ config XLNX_DISPLAYPORT
> >
> > config DM163
> > bool
> > +
> > +config MAC_PVG
> > + bool
> > + default y
> > +
> > +config MAC_PVG_MMIO
> > + bool
> > + depends on MAC_PVG && AARCH64
> > +
> > diff --git a/hw/display/apple-gfx-mmio.m b/hw/display/apple-gfx-
> mmio.m
> > new file mode 100644
> > index 00000000000..b0c5669a344
> > --- /dev/null
> > +++ b/hw/display/apple-gfx-mmio.m
> > @@ -0,0 +1,387 @@
> > +/*
> > + * QEMU Apple ParavirtualizedGraphics.framework device, MMIO
> (arm64) variant
> > + *
> > + * Copyright © 2023 Amazon.com, Inc. or its affiliates. All
> Rights Reserved.
> > + *
> > + * This work is licensed under the terms of the GNU GPL, version
> 2 or later.
> > + * See the COPYING file in the top-level directory.
> > + *
> > + * SPDX-License-Identifier: GPL-2.0-or-later
> > + *
> > + * ParavirtualizedGraphics.framework is a set of libraries that
> macOS provides
> > + * which implements 3d graphics passthrough to the host as well as a
> > + * proprietary guest communication channel to drive it. This
> device model
> > + * implements support to drive that library from within QEMU as
> an MMIO-based
> > + * system device for macOS on arm64 VMs.
> > + */
> > +
> > +#include "qemu/osdep.h"
> > +#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
> > +#include "apple-gfx.h"
> > +#include "monitor/monitor.h"
> > +#include "hw/sysbus.h"
> > +#include "hw/irq.h"
> > +#include "trace.h"
> > +#include "qemu/log.h"
> > +
> > +OBJECT_DECLARE_SIMPLE_TYPE(AppleGFXMMIOState, APPLE_GFX_MMIO)
> > +
> > +/*
> > + * ParavirtualizedGraphics.Framework only ships header files for
> the PCI
> > + * variant which does not include IOSFC descriptors and host
> devices. We add
> > + * their definitions here so that we can also work with the ARM
> version.
> > + */
> > +typedef bool(^IOSFCRaiseInterrupt)(uint32_t vector);
> > +typedef bool(^IOSFCUnmapMemory)(
> > + void *, void *, void *, void *, void *, void *);
> > +typedef bool(^IOSFCMapMemory)(
> > + uint64_t phys, uint64_t len, bool ro, void **va, void *,
> void *);
> > +
> > +@interface PGDeviceDescriptor (IOSurfaceMapper)
> > +@property (readwrite, nonatomic) bool usingIOSurfaceMapper;
> > +@end
> > +
> > +@interface PGIOSurfaceHostDeviceDescriptor : NSObject
> > +-(PGIOSurfaceHostDeviceDescriptor *)init;
> > +@property (readwrite, nonatomic, copy, nullable) IOSFCMapMemory
> mapMemory;
> > +@property (readwrite, nonatomic, copy, nullable)
> IOSFCUnmapMemory unmapMemory;
> > +@property (readwrite, nonatomic, copy, nullable)
> IOSFCRaiseInterrupt raiseInterrupt;
> > +@end
> > +
> > +@interface PGIOSurfaceHostDevice : NSObject
> > +-(instancetype)initWithDescriptor:
> (PGIOSurfaceHostDeviceDescriptor *)desc;
> > +-(uint32_t)mmioReadAtOffset:(size_t)offset;
> > +-(void)mmioWriteAtOffset:(size_t)offset value:(uint32_t)value;
> > +@end
> > +
> > +struct AppleGFXMapSurfaceMemoryJob;
> > +struct AppleGFXMMIOState {
> > + SysBusDevice parent_obj;
> > +
> > + AppleGFXState common;
> > +
> > + QemuCond iosfc_map_job_cond;
> > + QemuCond iosfc_unmap_job_cond;
> > + qemu_irq irq_gfx;
> > + qemu_irq irq_iosfc;
> > + MemoryRegion iomem_iosfc;
> > + PGIOSurfaceHostDevice *pgiosfc;
> > +
> > + GArray *iosfc_mapped_regions; /* array of
> AppleGFXMMIOMappedRegion */
>
> We don't need to have an array but we can get the memory region with
> address_space_translate() when mapping or with
> memory_region_from_host()
> when unmapping.
>
>
> Yeah, I guess that works. Lots of memory_region_ref()/
> memory_region_unref() calls, but I guess the address_space_translate()
> call is much more expensive anyway. I originally wanted to store the
> physical range of the RAM region so we don't need to keep looking up the
> physical address on mapping, but there does not seem to be a good way to
> obtain the guest-physical start address of the result of a
> address_space_translate() call as only part of the region might be
> mapped contiguously. (Unless you've got a good suggestion for that? I
> was wondering about subtracting the offset returned from
> address_space_translate() from the guest physical address then re-
> running address_space_translate() with that and the memory region's size
> to check if all of it is mapped.)
hvf and kvm use MemoryListener to track the guest physical address space
in my understanding, but that is complicated. I hope
address_space_translate() is fast enough.
>
> For background:
> In my testing, the system performs thousands of these IOSurface memory
> mappings per second, with tens of thousands of mappings alive at any
> time. The vast majority are 1 page [16KiB] in size, and they are
> unmapped in batches of tens of thousands. In practice, there is only one
> MemoryRegion involved in all of this, which is the MemoryRegion
> containing all of the VM's system memory. So all of this lookup and
> referencing and unreferencing ultimately seems pretty pointless because
> all that really needs to be done is work out the offset in guest RAM and
> add it to the host-side pointer. But hypothetically, the RAM topology
> could be more complex, so we have to jump through all these hoops.
> The situation is similar in the task memory-mapping callback of the
> main/common PVG device, except there aren't so many mappings and they
> are larger. As that's also used in the PCI variant, you also get to deal
> with the fun of the non-contiguous x86-64 guest system memory.
That is really awkward. I wonder how Apple's GPU manages its page table.
>
> > +};
> > +
> > +typedef struct AppleGFXMMIOJob {
> > + AppleGFXMMIOState *state;
> > + uint64_t offset;
> > + uint64_t value;
> > + bool completed;
> > +} AppleGFXMMIOJob;
> > +
> > +static void iosfc_do_read(void *opaque)
> > +{
> > + AppleGFXMMIOJob *job = opaque;
> > + job->value = [job->state->pgiosfc mmioReadAtOffset:job->offset];
> > + qatomic_set(&job->completed, true);
> > + aio_wait_kick();
> > +}
> > +
> > +static uint64_t iosfc_read(void *opaque, hwaddr offset, unsigned
> size)
> > +{
> > + AppleGFXMMIOJob job = {
> > + .state = opaque,
> > + .offset = offset,
> > + .completed = false,
> > + };
> > + dispatch_queue_t queue =
> dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
> > +
> > + dispatch_async_f(queue, &job, iosfc_do_read);
> > + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> > +
> > + trace_apple_gfx_mmio_iosfc_read(offset, job.value);
> > + return job.value;
> > +}
> > +
> > +static void iosfc_do_write(void *opaque)
> > +{
> > + AppleGFXMMIOJob *job = opaque;
> > + [job->state->pgiosfc mmioWriteAtOffset:job->offset
> value:job->value];
> > + qatomic_set(&job->completed, true);
> > + aio_wait_kick();
> > +}
> > +
> > +static void iosfc_write(void *opaque, hwaddr offset, uint64_t val,
> > + unsigned size)
> > +{
> > + AppleGFXMMIOJob job = {
> > + .state = opaque,
> > + .offset = offset,
> > + .value = val,
> > + .completed = false,
> > + };
> > + dispatch_queue_t queue =
> dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
> > +
> > + dispatch_async_f(queue, &job, iosfc_do_write);
> > + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> > +
> > + trace_apple_gfx_mmio_iosfc_write(offset, val);
> > +}
> > +
> > +static const MemoryRegionOps apple_iosfc_ops = {
> > + .read = iosfc_read,
> > + .write = iosfc_write,
> > + .endianness = DEVICE_LITTLE_ENDIAN,
> > + .valid = {
> > + .min_access_size = 4,
> > + .max_access_size = 8,
> > + },
> > + .impl = {
> > + .min_access_size = 4,
> > + .max_access_size = 8,
> > + },
> > +};
> > +
> > +static void raise_irq(void *opaque)
> > +{
> > + qemu_irq *irq = opaque;
> > +
> > + qemu_irq_pulse(*irq);
> > +}
> > +
> > +typedef struct AppleGFXMapSurfaceMemoryJob {
> > + uint64_t guest_physical_address;
> > + uint64_t guest_physical_length;
> > + void *result_mem;
> > + AppleGFXMMIOState *state;
> > + bool read_only;
> > + bool success;
> > + bool done;
> > +} AppleGFXMapSurfaceMemoryJob;
> > +
> > +typedef struct AppleGFXMMIOMappedRegion {
> > + MemoryRegion *region;
> > + uint64_t map_count;
> > + uintptr_t host_virtual_start;
> > + uintptr_t host_virtual_end;
> > +} AppleGFXMMIOMappedRegion;
> > +
> > +static void apple_gfx_mmio_map_surface_memory(void *opaque)
> > +{
> > + AppleGFXMapSurfaceMemoryJob *job = opaque;
> > + AppleGFXMMIOState *s = job->state;
> > + mach_vm_address_t mem;
> > + MemoryRegion *region = NULL;
> > + GArray *regions = s->iosfc_mapped_regions;
> > + AppleGFXMMIOMappedRegion *mapped_region;
> > + size_t i;
> > +
> > + mem = apple_gfx_host_address_for_gpa_range(job-
> >guest_physical_address,
> > + job-
> >guest_physical_length,
> > + job->read_only,
> ®ion);
> > +
> > + if (mem != 0) {
> > + for (i = 0; i < regions->len; ++i) {
> > + mapped_region = &g_array_index(regions,
> AppleGFXMMIOMappedRegion, i);
> > + if (region == mapped_region->region) {
> > + ++mapped_region->map_count;
> > + break;
> > + }
> > + }
> > +
> > + if (i >= regions->len) {
> > + /* No existing mapping to this region found, keep a
> reference and save
> > + */
> > + uintptr_t start =
> (uintptr_t)memory_region_get_ram_ptr(region);
> > + AppleGFXMMIOMappedRegion new_region = {
> > + region, 1,
> > + start,
> > + start + memory_region_size(region)
> > + };
> > + memory_region_ref(region);
> > + g_array_append_val(regions, new_region);
> > + trace_apple_gfx_iosfc_map_memory_new_region(
> > + i, region, start, new_region.host_virtual_end);
> > + }
> > + }
> > +
> > + qemu_mutex_lock(&s->common.job_mutex);
> > + job->result_mem = (void *)mem;
> > + job->success = mem != 0;
> > + job->done = true;
> > + qemu_cond_broadcast(&s->iosfc_map_job_cond);
> > + qemu_mutex_unlock(&s->common.job_mutex);
> > +}
> > +
> > +typedef struct AppleGFXUnmapSurfaceMemoryJob {
> > + void *virtual_address;
> > + AppleGFXMMIOState *state;
> > + bool done;
> > +} AppleGFXUnmapSurfaceMemoryJob;
> > +
> > +static AppleGFXMMIOMappedRegion
> *find_mapped_region_containing(GArray *regions,
> > +
> uintptr_t va,
> > +
> size_t *index)
> > +{
> > + size_t i;
> > + AppleGFXMMIOMappedRegion *mapped_region;
> > +
> > + for (i = 0; i < regions->len; ++i) {
> > + mapped_region = &g_array_index(regions,
> AppleGFXMMIOMappedRegion, i);
> > + if (va >= mapped_region->host_virtual_start &&
> > + va < mapped_region->host_virtual_end) {
> > + *index = i;> + return mapped_region;
> > + }
> > + }
> > + return NULL;
> > +}
> > +
> > +static void apple_gfx_mmio_unmap_surface_memory(void *opaque)
> > +{
> > + AppleGFXUnmapSurfaceMemoryJob *job = opaque;
> > + AppleGFXMMIOState *s = job->state;
> > + uintptr_t mem = (uintptr_t)job->virtual_address;
> > + GArray *regions = s->iosfc_mapped_regions;
> > + size_t region_index;
> > + AppleGFXMMIOMappedRegion *mapped_region =
> > + find_mapped_region_containing(regions, mem, ®ion_index);
> > +
> > + if (mapped_region) {
> > + trace_apple_gfx_iosfc_unmap_memory_region(mem,
> region_index, mapped_region->map_count, mapped_region->region);
> > + if (--mapped_region->map_count == 0) {
> > + memory_region_unref(mapped_region->region);
> > + g_array_remove_index_fast(regions, region_index);
> > + }
> > + } else {
> > + qemu_log_mask(LOG_GUEST_ERROR, "%s: memory at %p to be
> unmapped not "
> > + "found in any of %u mapped regions.\n",
> > + __func__,
> > + job->virtual_address, regions->len);
> > + }
> > +
> > + qemu_mutex_lock(&s->common.job_mutex);
> > + job->done = true;
> > + qemu_cond_broadcast(&s->iosfc_unmap_job_cond);
> > + qemu_mutex_unlock(&s->common.job_mutex);
> > +}
> > +
> > +static PGIOSurfaceHostDevice
> *apple_gfx_prepare_iosurface_host_device(
> > + AppleGFXMMIOState *s)
> > +{
> > + PGIOSurfaceHostDeviceDescriptor *iosfc_desc =
> > + [PGIOSurfaceHostDeviceDescriptor new];
> > + PGIOSurfaceHostDevice *iosfc_host_dev = nil;
> > +
> > + iosfc_desc.mapMemory =
> > + ^bool(uint64_t phys, uint64_t len, bool ro, void **va,
> void *e, void *f) {
> > + AppleGFXMapSurfaceMemoryJob job = {
> > + .guest_physical_address =
> phys, .guest_physical_length = len,
> > + .read_only = ro, .state = s,
> > + };
> > +
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > +
> apple_gfx_mmio_map_surface_memory, &job);
> > + apple_gfx_await_bh_job(&s->common, &s-
> >iosfc_map_job_cond, &job.done);
> > +
> > + *va = job.result_mem;
> > +
> > + trace_apple_gfx_iosfc_map_memory(phys, len, ro, va,
> e, f, *va,
> > + job.success);
> > +
> > + return job.success;
> > + };
> > +
> > + iosfc_desc.unmapMemory =
> > + ^bool(void *va, void *b, void *c, void *d, void *e, void
> *f) {
> > + AppleGFXUnmapSurfaceMemoryJob job = { va, s };
> > + trace_apple_gfx_iosfc_unmap_memory(va, b, c, d, e, f);
> > +
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > +
> apple_gfx_mmio_unmap_surface_memory, &job);
> > + apple_gfx_await_bh_job(&s->common, &s-
> >iosfc_unmap_job_cond, &job.done);
> > +
> > + return true;
> > + };
> > +
> > + iosfc_desc.raiseInterrupt = ^bool(uint32_t vector) {
> > + trace_apple_gfx_iosfc_raise_irq(vector);
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > + raise_irq, &s->irq_iosfc);
> > + return true;
> > + };
> > +
> > + iosfc_host_dev =
> > + [[PGIOSurfaceHostDevice alloc]
> initWithDescriptor:iosfc_desc];
> > + [iosfc_desc release];
> > + return iosfc_host_dev;
> > +}
> > +
> > +static void apple_gfx_mmio_realize(DeviceState *dev, Error **errp)
> > +{
> > + @autoreleasepool {
> > + AppleGFXMMIOState *s = APPLE_GFX_MMIO(dev);
> > + PGDeviceDescriptor *desc = [PGDeviceDescriptor new];
> > +
> > + desc.raiseInterrupt = ^(uint32_t vector) {
> > + trace_apple_gfx_raise_irq(vector);
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > + raise_irq, &s->irq_gfx);
> > + };
> > +
> > + desc.usingIOSurfaceMapper = true;
> > + s->pgiosfc = apple_gfx_prepare_iosurface_host_device(s);
> > +
> > + s->iosfc_mapped_regions =
> > + g_array_sized_new(false /* no termination */, true /
> * clear */,
> > + sizeof(AppleGFXMMIOMappedRegion),
> > + 2 /* Usually no more RAM regions*/);
> > +
> > + apple_gfx_common_realize(&s->common, desc, errp);
> > + qemu_cond_init(&s->iosfc_map_job_cond);
> > + qemu_cond_init(&s->iosfc_unmap_job_cond);
> > +
> > + [desc release];
> > + desc = nil;
> > + }
> > +}
> > +
> > +static void apple_gfx_mmio_init(Object *obj)
> > +{
> > + AppleGFXMMIOState *s = APPLE_GFX_MMIO(obj);
> > +
> > + apple_gfx_common_init(obj, &s->common, TYPE_APPLE_GFX_MMIO);
> > +
> > + sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->common.iomem_gfx);
> > + memory_region_init_io(&s->iomem_iosfc, obj, &apple_iosfc_ops, s,
> > + TYPE_APPLE_GFX_MMIO, 0x10000);
> > + sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem_iosfc);
> > + sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq_gfx);
> > + sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq_iosfc);
> > +}
> > +
> > +static void apple_gfx_mmio_reset(Object *obj, ResetType type)
> > +{
> > + AppleGFXMMIOState *s = APPLE_GFX_MMIO(obj);
> > + [s->common.pgdev reset];
> > +}
> > +
> > +
> > +static void apple_gfx_mmio_class_init(ObjectClass *klass, void
> *data)
> > +{
> > + DeviceClass *dc = DEVICE_CLASS(klass);
> > + ResettableClass *rc = RESETTABLE_CLASS(klass);
> > +
> > + rc->phases.hold = apple_gfx_mmio_reset;
> > + dc->hotpluggable = false;
> > + dc->realize = apple_gfx_mmio_realize;
> > +}
> > +
> > +static TypeInfo apple_gfx_mmio_types[] = {
> > + {
> > + .name = TYPE_APPLE_GFX_MMIO,
> > + .parent = TYPE_SYS_BUS_DEVICE,
> > + .instance_size = sizeof(AppleGFXMMIOState),
> > + .class_init = apple_gfx_mmio_class_init,
> > + .instance_init = apple_gfx_mmio_init,
> > + }
> > +};
> > +DEFINE_TYPES(apple_gfx_mmio_types)
> > diff --git a/hw/display/apple-gfx.h b/hw/display/apple-gfx.h
> > new file mode 100644
> > index 00000000000..ef34e8160c8
> > --- /dev/null
> > +++ b/hw/display/apple-gfx.h
> > @@ -0,0 +1,79 @@
> > +/*
> > + * Data structures and functions shared between variants of the
> macOS
> > + * ParavirtualizedGraphics.framework based apple-gfx display
> adapter.
> > + *
> > + * SPDX-License-Identifier: GPL-2.0-or-later
> > + */
> > +
> > +#ifndef QEMU_APPLE_GFX_H
> > +#define QEMU_APPLE_GFX_H
> > +
> > +#define TYPE_APPLE_GFX_MMIO "apple-gfx-mmio"
> > +#define TYPE_APPLE_GFX_PCI "apple-gfx-pci"
> > +
> > +#include "qemu/osdep.h"
> > +#include <dispatch/dispatch.h>
> > +#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
> > +#include "qemu/typedefs.h"
> > +#include "exec/memory.h"
> > +#include "ui/surface.h"
> > +
> > +@class PGDeviceDescriptor;
> > +@protocol PGDevice;
> > +@protocol PGDisplay;
> > +@protocol MTLDevice;
> > +@protocol MTLTexture;
> > +@protocol MTLCommandQueue;
> > +
> > +typedef QTAILQ_HEAD(, PGTask_s) PGTaskList;
> > +
> > +typedef struct AppleGFXState {
> > + /* Initialised on init/realize() */
> > + MemoryRegion iomem_gfx;
> > + id<PGDevice> pgdev;
> > + id<PGDisplay> pgdisp;
> > + QemuConsole *con;
> > + id<MTLDevice> mtl;
> > + id<MTLCommandQueue> mtl_queue;
> > + dispatch_queue_t render_queue;
> > + /*
> > + * QemuMutex & QemuConds for awaiting completion of PVG
> memory-mapping and
> > + * reading requests after submitting them to run in the AIO
> context.
> > + * QemuCond (rather than QemuEvent) are used so multiple
> concurrent jobs
> > + * can be handled safely.
> > + * The state associated with each job is tracked in a
> AppleGFX*Job struct
> > + * for each kind of job; instances are allocated on the
> caller's stack.
> > + * This struct also contains the completion flag which is
> used in
> > + * conjunction with the condition variable.
> > + */
> > + QemuMutex job_mutex;
> > + QemuCond task_map_job_cond;
> > + QemuCond mem_read_job_cond;
> > +
> > + /* tasks is protected by task_mutex */
> > + QemuMutex task_mutex;
> > + PGTaskList tasks;
> > +
> > + /* Mutable state (BQL) */
> > + QEMUCursor *cursor;
> > + bool cursor_show;
> > + bool gfx_update_requested;
> > + bool new_frame_ready;
> > + bool using_managed_texture_storage;
> > + int32_t pending_frames;
> > + void *vram;
> > + DisplaySurface *surface;
> > + id<MTLTexture> texture;
> > +} AppleGFXState;
> > +
> > +void apple_gfx_common_init(Object *obj, AppleGFXState *s, const
> char* obj_name);
> > +void apple_gfx_common_realize(AppleGFXState *s,
> PGDeviceDescriptor *desc,
> > + Error **errp);
> > +uintptr_t apple_gfx_host_address_for_gpa_range(uint64_t
> guest_physical,
> > + uint64_t length,
> bool read_only,
> > + MemoryRegion
> **mapping_in_region);
> > +void apple_gfx_await_bh_job(AppleGFXState *s, QemuCond *job_cond,
> > + bool *job_done_flag);
> > +
> > +#endif
> > +
> > diff --git a/hw/display/apple-gfx.m b/hw/display/apple-gfx.m
> > new file mode 100644
> > index 00000000000..101b38e8a6e
> > --- /dev/null
> > +++ b/hw/display/apple-gfx.m
> > @@ -0,0 +1,773 @@
> > +/*
> > + * QEMU Apple ParavirtualizedGraphics.framework device
> > + *
> > + * Copyright © 2023 Amazon.com, Inc. or its affiliates. All
> Rights Reserved.
> > + *
> > + * This work is licensed under the terms of the GNU GPL, version
> 2 or later.
> > + * See the COPYING file in the top-level directory.
> > + *
> > + * SPDX-License-Identifier: GPL-2.0-or-later
> > + *
> > + * ParavirtualizedGraphics.framework is a set of libraries that
> macOS provides
> > + * which implements 3d graphics passthrough to the host as well as a
> > + * proprietary guest communication channel to drive it. This
> device model
> > + * implements support to drive that library from within QEMU.
> > + */
> > +
> > +#include "qemu/osdep.h"
> > +#import <ParavirtualizedGraphics/ParavirtualizedGraphics.h>
> > +#include <mach/mach_vm.h>
> > +#include "apple-gfx.h"
> > +#include "trace.h"
> > +#include "qemu-main.h"
> > +#include "exec/address-spaces.h"
> > +#include "migration/blocker.h"
> > +#include "monitor/monitor.h"
> > +#include "qemu/main-loop.h"
> > +#include "qemu/cutils.h"
> > +#include "qemu/log.h"
> > +#include "qapi/visitor.h"
> > +#include "qapi/error.h"
> > +#include "sysemu/dma.h"
> > +#include "ui/console.h"
> > +
> > +static const PGDisplayCoord_t apple_gfx_modes[] = {
> > + { .x = 1440, .y = 1080 },
> > + { .x = 1280, .y = 1024 },
> > +};
> > +
> > +/* This implements a type defined in <ParavirtualizedGraphics/
> PGDevice.h>
> > + * which is opaque from the framework's point of view. Typedef
> PGTask_t already
> > + * exists in the framework headers. */
> > +struct PGTask_s {
> > + QTAILQ_ENTRY(PGTask_s) node;
> > + AppleGFXState *s;
> > + mach_vm_address_t address;
> > + uint64_t len;
> > + /*
> > + * All unique MemoryRegions for which a mapping has been
> created in in this
> > + * task, and on which we have thus called
> memory_region_ref(). There are
> > + * usually very few regions of system RAM in total, so we
> expect this array
> > + * to be very short. Therefore, no need for sorting or fancy
> search
> > + * algorithms, linear search will do. */
> > + GArray *mapped_regions;
>
> Use GPtrArray.
>
>
> Thanks, I wasn't aware of this variant.
>
> > +};
> > +
> > +static Error *apple_gfx_mig_blocker;
> > +
> > +static void apple_gfx_render_frame_completed(AppleGFXState *s,
> > + uint32_t width,
> uint32_t height);
> > +
> > +static dispatch_queue_t get_background_queue(void)
> > +{
> > + return
> dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
> > +}
> > +
> > +static PGTask_t *apple_gfx_new_task(AppleGFXState *s, uint64_t len)
> > +{
> > + mach_vm_address_t task_mem;
> > + PGTask_t *task;
> > + kern_return_t r;
> > +
> > + r = mach_vm_allocate(mach_task_self(), &task_mem, len,
> VM_FLAGS_ANYWHERE);
> > + if (r != KERN_SUCCESS) {
> > + return NULL;
> > + }
> > +
> > + task = g_new0(PGTask_t, 1);
> > + task->s = s;
> > + task->address = task_mem;
> > + task->len = len;
> > + task->mapped_regions = g_array_sized_new(false /* no
> termination */,
> > + true /* clear */,
> > + sizeof(MemoryRegion *),
> > + 2 /* Usually no
> more RAM regions*/);
> > +
> > + QEMU_LOCK_GUARD(&s->task_mutex);
> > + QTAILQ_INSERT_TAIL(&s->tasks, task, node);
> > +
> > + return task;
> > +}
> > +
> > +typedef struct AppleGFXIOJob {
> > + AppleGFXState *state;
> > + uint64_t offset;
> > + uint64_t value;
> > + bool completed;
> > +} AppleGFXIOJob;
> > +
> > +static void apple_gfx_do_read(void *opaque)
> > +{
> > + AppleGFXIOJob *job = opaque;
> > + job->value = [job->state->pgdev mmioReadAtOffset:job->offset];
> > + qatomic_set(&job->completed, true);
> > + aio_wait_kick();
> > +}
> > +
> > +static uint64_t apple_gfx_read(void *opaque, hwaddr offset,
> unsigned size)
> > +{
> > + AppleGFXIOJob job = {
> > + .state = opaque,
> > + .offset = offset,
> > + .completed = false,
> > + };
> > + dispatch_queue_t queue = get_background_queue();
> > +
> > + dispatch_async_f(queue, &job, apple_gfx_do_read);
> > + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> > +
> > + trace_apple_gfx_read(offset, job.value);
> > + return job.value;
> > +}
> > +
> > +static void apple_gfx_do_write(void *opaque)
> > +{
> > + AppleGFXIOJob *job = opaque;
> > + [job->state->pgdev mmioWriteAtOffset:job->offset value:job-
> >value];
> > + qatomic_set(&job->completed, true);
> > + aio_wait_kick();
> > +}
> > +
> > +static void apple_gfx_write(void *opaque, hwaddr offset,
> uint64_t val,
> > + unsigned size)
> > +{
> > + /* The methods mmioReadAtOffset: and especially
> mmioWriteAtOffset: can
> > + * trigger and block on operations on other dispatch queues,
> which in turn
> > + * may call back out on one or more of the callback blocks.
> For this reason,
> > + * and as we are holding the BQL, we invoke the I/O methods
> on a pool
> > + * thread and handle AIO tasks while we wait. Any work in
> the callbacks
> > + * requiring the BQL will in turn schedule BHs which this
> thread will
> > + * process while waiting. */
> > + AppleGFXIOJob job = {
> > + .state = opaque,
> > + .offset = offset,
> > + .value = val,
> > + .completed = false,
> > + };
> > + dispatch_queue_t queue = get_background_queue();
> > +
> > + dispatch_async_f(queue, &job, apple_gfx_do_write);
> > + AIO_WAIT_WHILE(NULL, !qatomic_read(&job.completed));
> > +
> > + trace_apple_gfx_write(offset, val);
> > +}
> > +
> > +static const MemoryRegionOps apple_gfx_ops = {
> > + .read = apple_gfx_read,
> > + .write = apple_gfx_write,
> > + .endianness = DEVICE_LITTLE_ENDIAN,
> > + .valid = {
> > + .min_access_size = 4,
> > + .max_access_size = 8,
> > + },
> > + .impl = {
> > + .min_access_size = 4,
> > + .max_access_size = 4,
> > + },
> > +};
> > +
> > +static void apple_gfx_render_new_frame_bql_unlock(AppleGFXState *s)
> > +{
> > + BOOL r;
> > + bool managed_texture = s->using_managed_texture_storage;
> > + uint32_t width = surface_width(s->surface);
> > + uint32_t height = surface_height(s->surface);
> > + MTLRegion region = MTLRegionMake2D(0, 0, width, height);
> > + id<MTLCommandBuffer> command_buffer = [s->mtl_queue
> commandBuffer];
> > + id<MTLTexture> texture = s->texture;
> > +
> > + assert(bql_locked());
> > + [texture retain];
> > +
> > + bql_unlock();
> > +
> > + /* This is not safe to call from the BQL due to PVG-internal
> locks causing
> > + * deadlocks. */
> > + r = [s->pgdisp encodeCurrentFrameToCommandBuffer:command_buffer
> > + texture:texture
> > + region:region];
> > + if (!r) {
> > + [texture release];
> > + bql_lock();
> > + --s->pending_frames;
> > + bql_unlock();
> > + qemu_log_mask(LOG_GUEST_ERROR,
> > + "%s:
> encodeCurrentFrameToCommandBuffer:texture:region: "
> > + "failed\n", __func__);
> > + return;
> > + }
> > +
> > + if (managed_texture) {
> > + /* "Managed" textures exist in both VRAM and RAM and
> must be synced. */
> > + id<MTLBlitCommandEncoder> blit = [command_buffer
> blitCommandEncoder];
> > + [blit synchronizeResource:texture];
> > + [blit endEncoding];
> > + }
> > + [texture release];
> > + [command_buffer addCompletedHandler:
> > + ^(id<MTLCommandBuffer> cb)
> > + {
> > + dispatch_async(s->render_queue, ^{
> > + apple_gfx_render_frame_completed(s, width, height);
> > + });
> > + }];
> > + [command_buffer commit];
> > +}
> > +
> > +static void copy_mtl_texture_to_surface_mem(id<MTLTexture>
> texture, void *vram)
> > +{
> > + /* TODO: Skip this entirely on a pure Metal or headless/
> guest-only
> > + * rendering path, else use a blit command encoder? Needs
> careful
> > + * (double?) buffering design. */
> > + size_t width = texture.width, height = texture.height;
> > + MTLRegion region = MTLRegionMake2D(0, 0, width, height);
> > + [texture getBytes:vram
> > + bytesPerRow:(width * 4)
> > + bytesPerImage:(width * height * 4)
> > + fromRegion:region
> > + mipmapLevel:0
> > + slice:0];
> > +}
> > +
> > +static void apple_gfx_render_frame_completed(AppleGFXState *s,
> > + uint32_t width,
> uint32_t height)
> > +{
> > + bql_lock();
> > + --s->pending_frames;
> > + assert(s->pending_frames >= 0);
> > +
> > + /* Only update display if mode hasn't changed since we
> started rendering. */
> > + if (width == surface_width(s->surface) &&
> > + height == surface_height(s->surface)) {
> > + copy_mtl_texture_to_surface_mem(s->texture, s->vram);
> > + if (s->gfx_update_requested) {
> > + s->gfx_update_requested = false;
> > + dpy_gfx_update_full(s->con);
> > + graphic_hw_update_done(s->con);
> > + s->new_frame_ready = false;
> > + } else {
> > + s->new_frame_ready = true;
> > + }
> > + }
> > + if (s->pending_frames > 0) {
> > + apple_gfx_render_new_frame_bql_unlock(s);
> > + } else {
> > + bql_unlock();
> > + }
> > +}
> > +
> > +static void apple_gfx_fb_update_display(void *opaque)
> > +{
> > + AppleGFXState *s = opaque;
> > +
> > + assert(bql_locked());
> > + if (s->new_frame_ready) {
> > + dpy_gfx_update_full(s->con);
> > + s->new_frame_ready = false;
> > + graphic_hw_update_done(s->con);
> > + } else if (s->pending_frames > 0) {
> > + s->gfx_update_requested = true;
> > + } else {
> > + graphic_hw_update_done(s->con);
> > + }
> > +}
> > +
> > +static const GraphicHwOps apple_gfx_fb_ops = {
> > + .gfx_update = apple_gfx_fb_update_display,
> > + .gfx_update_async = true,
> > +};
> > +
> > +static void update_cursor(AppleGFXState *s)
> > +{
> > + assert(bql_locked());
> > + dpy_mouse_set(s->con, s->pgdisp.cursorPosition.x,
> > + s->pgdisp.cursorPosition.y, s->cursor_show);
> > +}
> > +
> > +static void set_mode(AppleGFXState *s, uint32_t width, uint32_t
> height)
> > +{
> > + MTLTextureDescriptor *textureDescriptor;
> > +
> > + if (s->surface &&
> > + width == surface_width(s->surface) &&
> > + height == surface_height(s->surface)) {
> > + return;
> > + }
> > +
> > + g_free(s->vram);
> > + [s->texture release];
> > +
> > + s->vram = g_malloc0_n(width * height, 4);
> > + s->surface = qemu_create_displaysurface_from(width, height,
> PIXMAN_LE_a8r8g8b8,
> > + width * 4, s-
> >vram);
>
> Use qemu_create_displaysurface() and let DisplaySurface manage the
> memory for us.
>
>
> Yeah, I guess the default pixel format is a close enough match, and now
> that the texture content is copied synchronously under the BQL we don't
> need to deal with the memory ourselves anymore.
>
> > +
> > + @autoreleasepool {
> > + textureDescriptor =
> > + [MTLTextureDescriptor
> > +
> texture2DDescriptorWithPixelFormat:MTLPixelFormatBGRA8Unorm
> > + width:width
> > + height:height
> > + mipmapped:NO];
> > + textureDescriptor.usage = s->pgdisp.minimumTextureUsage;
> > + s->texture = [s->mtl
> newTextureWithDescriptor:textureDescriptor];
> > + }
> > +
> > + s->using_managed_texture_storage =
> > + (s->texture.storageMode == MTLStorageModeManaged);
> > + dpy_gfx_replace_surface(s->con, s->surface);
> > +}
> > +
> > +static void create_fb(AppleGFXState *s)
> > +{
> > + s->con = graphic_console_init(NULL, 0, &apple_gfx_fb_ops, s);
> > + set_mode(s, 1440, 1080);
> > +
> > + s->cursor_show = true;
> > +}
> > +
> > +static size_t apple_gfx_get_default_mmio_range_size(void)
> > +{
> > + size_t mmio_range_size;
> > + @autoreleasepool {
> > + PGDeviceDescriptor *desc = [PGDeviceDescriptor new];
> > + mmio_range_size = desc.mmioLength;
> > + [desc release];
> > + }
> > + return mmio_range_size;
> > +}
> > +
> > +void apple_gfx_common_init(Object *obj, AppleGFXState *s, const
> char* obj_name)
> > +{
> > + size_t mmio_range_size =
> apple_gfx_get_default_mmio_range_size();
> > +
> > + trace_apple_gfx_common_init(obj_name, mmio_range_size);
> > + memory_region_init_io(&s->iomem_gfx, obj, &apple_gfx_ops, s,
> obj_name,
> > + mmio_range_size);
> > +
> > + /* TODO: PVG framework supports serialising device state:
> integrate it! */
> > +}
> > +
> > +typedef struct AppleGFXMapMemoryJob {
> > + AppleGFXState *state;
> > + PGTask_t *task;
> > + uint64_t virtual_offset;
> > + PGPhysicalMemoryRange_t *ranges;
> > + uint32_t range_count;
> > + bool read_only;
> > + bool success;
> > + bool done;
> > +} AppleGFXMapMemoryJob;
> > +
> > +uintptr_t apple_gfx_host_address_for_gpa_range(uint64_t
> guest_physical,
> > + uint64_t length,
> bool read_only,
> > + MemoryRegion
> **mapping_in_region)
> > +{
> > + MemoryRegion *ram_region;
> > + uintptr_t host_address;
> > + hwaddr ram_region_offset = 0;
> > + hwaddr ram_region_length = length;
> > +
> > + ram_region = address_space_translate(&address_space_memory,
> > + guest_physical,
> > + &ram_region_offset,
> > + &ram_region_length, !
> read_only,
> > + MEMTXATTRS_UNSPECIFIED);
> > +
> > + if (!ram_region || ram_region_length < length ||
> > + !memory_access_is_direct(ram_region, !read_only)) {
> > + return 0;
> > + }
> > +
> > + host_address = (uintptr_t)memory_region_get_ram_ptr(ram_region);
> > + if (host_address == 0) {
> > + return 0;
> > + }
> > + host_address += ram_region_offset;
> > + *mapping_in_region = ram_region;
> > + return host_address;
> > +}
> > +
> > +/* Returns false if the region is already in the array */
> > +static bool add_new_region(GArray *regions, MemoryRegion *region)
> > +{
> > + MemoryRegion *existing;
> > + size_t i;
> > +
> > + for (i = 0; i < regions->len; ++i) {
> > + existing = g_array_index(regions, MemoryRegion *, i);
> > + if (existing == region) {
> > + return false;
> > + }
> > + }
> > + g_array_append_val(regions, region);
> > + return true;
> > +}
> > +
> > +static void apple_gfx_map_memory(void *opaque)
> > +{
> > + AppleGFXMapMemoryJob *job = opaque;
> > + AppleGFXState *s = job->state;
> > + PGTask_t *task = job->task;
> > + uint32_t range_count = job->range_count;
> > + uint64_t virtual_offset = job->virtual_offset;
> > + PGPhysicalMemoryRange_t *ranges = job->ranges;
> > + bool read_only = job->read_only;
> > + kern_return_t r;
> > + mach_vm_address_t target, source;
> > + vm_prot_t cur_protection, max_protection;
> > + bool success = true;
> > + MemoryRegion *region;
> > +
> > + g_assert(bql_locked());
>
> It seems this function only requires RCU read lock and we can avoid
> using bottom half.
>
> Yes, I think that should work. We'll still need something to serialise
> access to the task's mapped_regions array, but we can use the task_mutex
> instead of the BQL for that.
Nobody should implicitly assume thread-safety of operators that touches
one object (task), but perhaps Apple may do.
>
> I guess dma_memory_read() also only needs an RCU guard, so readMemory
> should also be safe to run without the BQL?
No, unfortunately. Theoretically, dma_memory_read() can read a MMIO
region and lock the BQL.
>
> > +
> > + trace_apple_gfx_map_memory(task, range_count,
> virtual_offset, read_only);
> > + for (int i = 0; i < range_count; i++) {
> > + PGPhysicalMemoryRange_t *range = &ranges[i];
> > +
> > + target = task->address + virtual_offset;
> > + virtual_offset += range->physicalLength;
> > +
> > + trace_apple_gfx_map_memory_range(i, range->physicalAddress,
> > + range->physicalLength);
> > +
> > + region = NULL;
> > + source = apple_gfx_host_address_for_gpa_range(range-
> >physicalAddress,
> > + range-
> >physicalLength,
> > + read_only,
> ®ion);
> > + if (source == 0) {
> > + success = false;
> > + continue;
> > + }
> > +
> > + if (add_new_region(task->mapped_regions, region)) {
> > + memory_region_ref(region);
> > + }
> > +
> > + cur_protection = 0;
> > + max_protection = 0;
> > + // Map guest RAM at range->physicalAddress into PG task
> memory range
> > + r = mach_vm_remap(mach_task_self(),
> > + &target, range->physicalLength,
> vm_page_size - 1,
> > + VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE,
> > + mach_task_self(),
> > + source, false /* shared mapping, no
> copy */,
> > + &cur_protection, &max_protection,
> > + VM_INHERIT_COPY);
> > + trace_apple_gfx_remap(r, source, target);
> > + g_assert(r == KERN_SUCCESS);
> > + }
> > +
> > + qemu_mutex_lock(&s->job_mutex);
> > + job->success = success;
> > + job->done = true;
> > + qemu_cond_broadcast(&s->task_map_job_cond);
> > + qemu_mutex_unlock(&s->job_mutex);
> > +}
> > +
> > +void apple_gfx_await_bh_job(AppleGFXState *s, QemuCond
> *job_cond, bool *job_done_flag)
> > +{
> > + qemu_mutex_lock(&s->job_mutex);
> > + while (!*job_done_flag) {
> > + qemu_cond_wait(job_cond, &s->job_mutex);
> > + }
> > + qemu_mutex_unlock(&s->job_mutex);
> > +}
> > +
> > +typedef struct AppleGFXReadMemoryJob {
> > + AppleGFXState *s;
> > + hwaddr physical_address;
> > + uint64_t length;
> > + void *dst;
> > + bool done;
> > + bool success;
> > +} AppleGFXReadMemoryJob;
> > +
> > +static void apple_gfx_do_read_memory(void *opaque)
> > +{
> > + AppleGFXReadMemoryJob *job = opaque;
> > + AppleGFXState *s = job->s;
> > + MemTxResult r;
> > +
> > + r = dma_memory_read(&address_space_memory, job-
> >physical_address,
> > + job->dst, job->length,
> MEMTXATTRS_UNSPECIFIED);
> > + job->success = r == MEMTX_OK;
> > +
> > + qemu_mutex_lock(&s->job_mutex);
> > + job->done = true;
> > + qemu_cond_broadcast(&s->mem_read_job_cond);
> > + qemu_mutex_unlock(&s->job_mutex);
> > +}
> > +
> > +static bool apple_gfx_read_memory(AppleGFXState *s, hwaddr
> physical_address,
> > + uint64_t length, void *dst)
> > +{
> > + AppleGFXReadMemoryJob job = {
> > + s, physical_address, length, dst
> > + };
> > +
> > + trace_apple_gfx_read_memory(physical_address, length, dst);
> > +
> > + /* Traversing the memory map requires RCU/BQL, so do it in a
> BH. */
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> apple_gfx_do_read_memory,
> > + &job);
> > + apple_gfx_await_bh_job(s, &s->mem_read_job_cond, &job.done);
> > + return job.success;
> > +}
> > +
> > +static void apple_gfx_task_destroy(AppleGFXState *s, PGTask_t *task)
> > +{
> > + GArray *regions = task->mapped_regions;
> > + MemoryRegion *region;
> > + size_t i;
> > +
> > + for (i = 0; i < regions->len; ++i) {
> > + region = g_array_index(regions, MemoryRegion *, i);
> > + memory_region_unref(region);
> > + }
> > + g_array_unref(regions);
> > +
> > + mach_vm_deallocate(mach_task_self(), task->address, task->len);
> > +
> > + QEMU_LOCK_GUARD(&s->task_mutex);
> > + QTAILQ_REMOVE(&s->tasks, task, node);
> > + g_free(task);
> > +}
> > +
> > +static void
> apple_gfx_register_task_mapping_handlers(AppleGFXState *s,
> > +
> PGDeviceDescriptor *desc)
> > +{
> > + desc.createTask = ^(uint64_t vmSize, void * _Nullable *
> _Nonnull baseAddress) {
> > + PGTask_t *task = apple_gfx_new_task(s, vmSize);
> > + *baseAddress = (void *)task->address;
> > + trace_apple_gfx_create_task(vmSize, *baseAddress);
> > + return task;
> > + };
> > +
> > + desc.destroyTask = ^(PGTask_t * _Nonnull task) {
> > + trace_apple_gfx_destroy_task(task, task->mapped_regions-
> >len);
> > +
> > + apple_gfx_task_destroy(s, task);
> > + };
> > +
> > + desc.mapMemory = ^bool(PGTask_t * _Nonnull task, uint32_t
> range_count,
> > + uint64_t virtual_offset, bool read_only,
> > + PGPhysicalMemoryRange_t * _Nonnull
> ranges) {
> > + AppleGFXMapMemoryJob job = {
> > + .state = s,
> > + .task = task, .ranges = ranges, .range_count =
> range_count,
> > + .read_only = read_only, .virtual_offset =
> virtual_offset,
> > + .done = false, .success = true,
> > + };
> > + if (range_count > 0) {
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > + apple_gfx_map_memory, &job);
> > + apple_gfx_await_bh_job(s, &s->task_map_job_cond,
> &job.done);
> > + }
> > + return job.success;
> > + };
> > +
> > + desc.unmapMemory = ^bool(PGTask_t * _Nonnull task, uint64_t
> virtualOffset,
> > + uint64_t length) {
> > + kern_return_t r;
> > + mach_vm_address_t range_address;
> > +
> > + trace_apple_gfx_unmap_memory(task, virtualOffset, length);
> > +
> > + /* Replace task memory range with fresh pages, undoing
> the mapping
> > + * from guest RAM. */
> > + range_address = task->address + virtualOffset;
> > + r = mach_vm_allocate(mach_task_self(), &range_address,
> length,
> > + VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE);
> > + g_assert(r == KERN_SUCCESS);> +
> > + return true;
> > + };
> > +
> > + desc.readMemory = ^bool(uint64_t physical_address, uint64_t
> length,
> > + void * _Nonnull dst) {
> > + return apple_gfx_read_memory(s, physical_address,
> length, dst);
> > + };
> > +}
> > +
> > +static PGDisplayDescriptor
> *apple_gfx_prepare_display_descriptor(AppleGFXState *s)
> > +{
> > + PGDisplayDescriptor *disp_desc = [PGDisplayDescriptor new];
> > +
> > + disp_desc.name <http://disp_desc.name> = @"QEMU display";
> > + disp_desc.sizeInMillimeters = NSMakeSize(400., 300.); /* A
> 20" display */
> > + disp_desc.queue = dispatch_get_main_queue();
> > + disp_desc.newFrameEventHandler = ^(void) {
> > + trace_apple_gfx_new_frame();
> > + dispatch_async(s->render_queue, ^{
> > + /* Drop frames if we get too far ahead. */
> > + bql_lock();
> > + if (s->pending_frames >= 2) {
> > + bql_unlock();
> > + return;
> > + }
> > + ++s->pending_frames;
> > + if (s->pending_frames > 1) {
> > + bql_unlock();
> > + return;
> > + }
> > + @autoreleasepool {
> > + apple_gfx_render_new_frame_bql_unlock(s);
> > + }
> > + });
> > + };
> > + disp_desc.modeChangeHandler = ^(PGDisplayCoord_t sizeInPixels,
> > + OSType pixelFormat) {
> > + trace_apple_gfx_mode_change(sizeInPixels.x, sizeInPixels.y);
> > +
> > + BQL_LOCK_GUARD();
> > + set_mode(s, sizeInPixels.x, sizeInPixels.y);
> > + };
> > + disp_desc.cursorGlyphHandler = ^(NSBitmapImageRep *glyph,
> > + PGDisplayCoord_t hotSpot) {
> > + [glyph retain];
> > + dispatch_async(get_background_queue(), ^{
> > + BQL_LOCK_GUARD();
>
> This would be better off using a bottom half since it is going to take
> the BQL.
>
>
> Yeah, I guess that should work now that we've eliminated any calls into
> PVG while holding the BQL.
>
> > + uint32_t bpp = glyph.bitsPerPixel;
> > + size_t width = glyph.pixelsWide;
> > + size_t height = glyph.pixelsHigh;
> > + size_t padding_bytes_per_row = glyph.bytesPerRow -
> width * 4;
> > + const uint8_t* px_data = glyph.bitmapData;
> > +
> > + trace_apple_gfx_cursor_set(bpp, width, height);
> > +
> > + if (s->cursor) {
> > + cursor_unref(s->cursor);
> > + s->cursor = NULL;
> > + }
> > +
> > + if (bpp == 32) { /* Shouldn't be anything else, but
> just to be safe...*/
> > + s->cursor = cursor_alloc(width, height);
> > + s->cursor->hot_x = hotSpot.x;
> > + s->cursor->hot_y = hotSpot.y;
> > +
> > + uint32_t *dest_px = s->cursor->data;
> > +
> > + for (size_t y = 0; y < height; ++y) {
> > + for (size_t x = 0; x < width; ++x) {
> > + /* NSBitmapImageRep's red & blue
> channels are swapped
> > + * compared to QEMUCursor's. */
> > + *dest_px =
> > + (px_data[0] << 16u) |
> > + (px_data[1] << 8u) |
> > + (px_data[2] << 0u) |
> > + (px_data[3] << 24u);
> > + ++dest_px;
> > + px_data += 4;
> > + }
> > + px_data += padding_bytes_per_row;
> > + }
> > + dpy_cursor_define(s->con, s->cursor);
> > + update_cursor(s);
> > + }
> > + [glyph release];
> > + });
> > + };
> > + disp_desc.cursorShowHandler = ^(BOOL show) {
> > + dispatch_async(get_background_queue(), ^{
> > + BQL_LOCK_GUARD();
> > + trace_apple_gfx_cursor_show(show);
> > + s->cursor_show = show;
> > + update_cursor(s);
> > + });
> > + };
> > + disp_desc.cursorMoveHandler = ^(void) {
> > + dispatch_async(get_background_queue(), ^{
> > + BQL_LOCK_GUARD();
> > + trace_apple_gfx_cursor_move();
> > + update_cursor(s);
> > + });
> > + };
> > +
> > + return disp_desc;
> > +}
> > +
> > +static NSArray<PGDisplayMode*>*
> apple_gfx_prepare_display_mode_array(void)
> > +{
> > + PGDisplayMode *modes[ARRAY_SIZE(apple_gfx_modes)];
> > + NSArray<PGDisplayMode*>* mode_array = nil;
> > + int i;
> > +
> > + for (i = 0; i < ARRAY_SIZE(apple_gfx_modes); i++) {
> > + modes[i] =
> > + [[PGDisplayMode alloc]
> initWithSizeInPixels:apple_gfx_modes[i] refreshRateInHz:60.];
> > + }
> > +
> > + mode_array = [NSArray arrayWithObjects:modes
> count:ARRAY_SIZE(apple_gfx_modes)];
> > +
> > + for (i = 0; i < ARRAY_SIZE(apple_gfx_modes); i++) {
> > + [modes[i] release];
> > + modes[i] = nil;
> > + }
> > +
> > + return mode_array;
> > +}
> > +
> > +static id<MTLDevice> copy_suitable_metal_device(void)
> > +{
> > + id<MTLDevice> dev = nil;
> > + NSArray<id<MTLDevice>> *devs = MTLCopyAllDevices();
> > +
> > + /* Prefer a unified memory GPU. Failing that, pick a non-
> removable GPU. */
> > + for (size_t i = 0; i < devs.count; ++i) {
> > + if (devs[i].hasUnifiedMemory) {
> > + dev = devs[i];
> > + break;
> > + }
> > + if (!devs[i].removable) {
> > + dev = devs[i];
> > + }
> > + }
> > +
> > + if (dev != nil) {
> > + [dev retain];
> > + } else {
> > + dev = MTLCreateSystemDefaultDevice();
> > + }
> > + [devs release];
> > +
> > + return dev;
> > +}
> > +
> > +void apple_gfx_common_realize(AppleGFXState *s,
> PGDeviceDescriptor *desc,
> > + Error **errp)
> > +{
> > + PGDisplayDescriptor *disp_desc = nil;
> > +
> > + if (apple_gfx_mig_blocker == NULL) {
> > + error_setg(&apple_gfx_mig_blocker,
> > + "Migration state blocked by apple-gfx display
> device");
> > + if (migrate_add_blocker(&apple_gfx_mig_blocker, errp) < 0) {
> > + return;
> > + }
> > + }
> > +
> > + qemu_mutex_init(&s->task_mutex);
> > + QTAILQ_INIT(&s->tasks);
> > + s->render_queue = dispatch_queue_create("apple-gfx.render",
> > + DISPATCH_QUEUE_SERIAL);
> > + s->mtl = copy_suitable_metal_device();
> > + s->mtl_queue = [s->mtl newCommandQueue];
> > +
> > + desc.device = s->mtl;
> > +
> > + apple_gfx_register_task_mapping_handlers(s, desc);
> > +
> > + s->pgdev = PGNewDeviceWithDescriptor(desc);
> > +
> > + disp_desc = apple_gfx_prepare_display_descriptor(s);
> > + s->pgdisp = [s->pgdev newDisplayWithDescriptor:disp_desc
> > + port:0
> serialNum:1234];
> > + [disp_desc release];
> > + s->pgdisp.modeList = apple_gfx_prepare_display_mode_array();
> > +
> > + create_fb(s);
> > +
> > + qemu_mutex_init(&s->job_mutex);
> > + qemu_cond_init(&s->task_map_job_cond);
> > + qemu_cond_init(&s->mem_read_job_cond);
> > +}
> > diff --git a/hw/display/meson.build b/hw/display/meson.build
> > index 20a94973fa2..619e642905a 100644
> > --- a/hw/display/meson.build
> > +++ b/hw/display/meson.build
> > @@ -61,6 +61,10 @@ system_ss.add(when: 'CONFIG_ARTIST', if_true:
> files('artist.c'))
> >
> > system_ss.add(when: 'CONFIG_ATI_VGA', if_true: [files('ati.c',
> 'ati_2d.c', 'ati_dbg.c'), pixman])
> >
> > +system_ss.add(when: 'CONFIG_MAC_PVG', if_true:
> [files('apple-gfx.m'), pvg, metal])
> > +if cpu == 'aarch64'
> > + system_ss.add(when: 'CONFIG_MAC_PVG_MMIO', if_true:
> [files('apple-gfx-mmio.m'), pvg, metal])
> > +endif
> >
> > if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
> > virtio_gpu_ss = ss.source_set()
> > diff --git a/hw/display/trace-events b/hw/display/trace-events
> > index 781f8a33203..d63fba6d094 100644
> > --- a/hw/display/trace-events
> > +++ b/hw/display/trace-events
> > @@ -191,3 +191,31 @@ dm163_bits_ppi(unsigned dest_width)
> "dest_width : %u"
> > dm163_leds(int led, uint32_t value) "led %d: 0x%x"
> > dm163_channels(int channel, uint8_t value) "channel %d: 0x%x"
> > dm163_refresh_rate(uint32_t rr) "refresh rate %d"
> > +
> > +# apple-gfx.m
> > +apple_gfx_read(uint64_t offset, uint64_t res)
> "offset=0x%"PRIx64" res=0x%"PRIx64
> > +apple_gfx_write(uint64_t offset, uint64_t val)
> "offset=0x%"PRIx64" val=0x%"PRIx64
> > +apple_gfx_create_task(uint32_t vm_size, void *va) "vm_size=0x%x
> base_addr=%p"
> > +apple_gfx_destroy_task(void *task, unsigned int
> num_mapped_regions) "task=%p, task->mapped_regions->len=%u"
> > +apple_gfx_map_memory(void *task, uint32_t range_count, uint64_t
> virtual_offset, uint32_t read_only) "task=%p range_count=0x%x
> virtual_offset=0x%"PRIx64" read_only=%d"
> > +apple_gfx_map_memory_range(uint32_t i, uint64_t phys_addr,
> uint64_t phys_len) "[%d] phys_addr=0x%"PRIx64" phys_len=0x%"PRIx64
> > +apple_gfx_remap(uint64_t retval, uint64_t source, uint64_t
> target) "retval=%"PRId64" source=0x%"PRIx64" target=0x%"PRIx64
> > +apple_gfx_unmap_memory(void *task, uint64_t virtual_offset,
> uint64_t length) "task=%p virtual_offset=0x%"PRIx64" length=0x%"PRIx64
> > +apple_gfx_read_memory(uint64_t phys_address, uint64_t length,
> void *dst) "phys_addr=0x%"PRIx64" length=0x%"PRIx64" dest=%p"
> > +apple_gfx_raise_irq(uint32_t vector) "vector=0x%x"
> > +apple_gfx_new_frame(void) ""
> > +apple_gfx_mode_change(uint64_t x, uint64_t y) "x=%"PRId64"
> y=%"PRId64
> > +apple_gfx_cursor_set(uint32_t bpp, uint64_t width, uint64_t
> height) "bpp=%d width=%"PRId64" height=0x%"PRId64
> > +apple_gfx_cursor_show(uint32_t show) "show=%d"
> > +apple_gfx_cursor_move(void) ""
> > +apple_gfx_common_init(const char *device_name, size_t mmio_size)
> "device: %s; MMIO size: %zu bytes"
> > +
> > +# apple-gfx-mmio.m
> > +apple_gfx_mmio_iosfc_read(uint64_t offset, uint64_t res)
> "offset=0x%"PRIx64" res=0x%"PRIx64
> > +apple_gfx_mmio_iosfc_write(uint64_t offset, uint64_t val)
> "offset=0x%"PRIx64" val=0x%"PRIx64
> > +apple_gfx_iosfc_map_memory(uint64_t phys, uint64_t len, uint32_t
> ro, void *va, void *e, void *f, void* va_result, int success)
> "phys=0x%"PRIx64" len=0x%"PRIx64" ro=%d va=%p e=%p f=%p -> *va=%p,
> success = %d"
> > +apple_gfx_iosfc_map_memory_new_region(size_t i, void *region,
> uint64_t start, uint64_t end) "index=%zu, region=%p,
> 0x%"PRIx64"-0x%"PRIx64
> > +apple_gfx_iosfc_unmap_memory(void *a, void *b, void *c, void *d,
> void *e, void *f) "a=%p b=%p c=%p d=%p e=%p f=%p"
> > +apple_gfx_iosfc_unmap_memory_region(uint64_t mem, size_t
> region_index, uint64_t map_count, void *region) "mapping @
> 0x%"PRIx64" in region %zu, map count %"PRIu64", memory region %p"
> > +apple_gfx_iosfc_raise_irq(uint32_t vector) "vector=0x%x"
> > +
> > diff --git a/meson.build b/meson.build
> > index f7d45175212..5eab46f704f 100644
> > --- a/meson.build
> > +++ b/meson.build
> > @@ -769,6 +769,8 @@ socket = []
> > version_res = []
> > coref = []
> > iokit = []
> > +pvg = []
> > +metal = []
> > emulator_link_args = []
> > midl = not_found
> > widl = not_found
> > @@ -790,6 +792,8 @@ elif host_os == 'darwin'
> > coref = dependency('appleframeworks', modules: 'CoreFoundation')
> > iokit = dependency('appleframeworks', modules: 'IOKit',
> required: false)
> > host_dsosuf = '.dylib'
> > + pvg = dependency('appleframeworks', modules:
> 'ParavirtualizedGraphics')
> > + metal = dependency('appleframeworks', modules: 'Metal')
> > elif host_os == 'sunos'
> > socket = [cc.find_library('socket'),
> > cc.find_library('nsl'),
>
^ permalink raw reply [flat|nested] 20+ messages in thread
end of thread, other threads:[~2024-11-02 12:39 UTC | newest]
Thread overview: 20+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-10-29 20:58 [PATCH v5 00/15] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 01/15] ui & main loop: Redesign of system-specific main thread event handling Phil Dennis-Jordan
2024-10-31 7:52 ` Akihiko Odaki
2024-10-29 20:58 ` [PATCH v5 02/15] hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support Phil Dennis-Jordan
2024-10-31 9:32 ` Akihiko Odaki
2024-11-01 21:37 ` Phil Dennis-Jordan
2024-11-02 12:38 ` Akihiko Odaki
2024-10-29 20:58 ` [PATCH v5 03/15] hw/display/apple-gfx: Adds PCI implementation Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 04/15] hw/display/apple-gfx: Adds configurable mode list Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 05/15] MAINTAINERS: Add myself as maintainer for apple-gfx, reviewer for HVF Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 06/15] hw: Add vmapple subdir Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 07/15] hw/misc/pvpanic: Add MMIO interface Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 08/15] hvf: arm: Ignore writes to CNTP_CTL_EL0 Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 09/15] gpex: Allow more than 4 legacy IRQs Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 10/15] hw/vmapple/aes: Introduce aes engine Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 11/15] hw/vmapple/bdif: Introduce vmapple backdoor interface Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 12/15] hw/vmapple/cfg: Introduce vmapple cfg region Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 13/15] hw/vmapple/virtio-blk: Add support for apple virtio-blk Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 14/15] hw/block/virtio-blk: Replaces request free function with g_free Phil Dennis-Jordan
2024-10-29 20:58 ` [PATCH v5 15/15] hw/vmapple/vmapple: Add vmapple machine type Phil Dennis-Jordan
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