* Re: Xen, ustable and VGA passthrough
[not found] <BANLkTim7Ly7FB1V7GMZLyH=-wVMSdjzY8A@mail.gmail.com>
@ 2011-05-20 6:08 ` Liwei
2011-05-21 15:58 ` Gennady Marchenko
2011-05-22 12:00 ` Pavel Matěja
0 siblings, 2 replies; 5+ messages in thread
From: Liwei @ 2011-05-20 6:08 UTC (permalink / raw)
To: Gennady Marchenko; +Cc: xen-devel, xen-users
[-- Attachment #1: Type: text/plain, Size: 1299 bytes --]
Hello Gennady!
Wasn't planning on posting the patch until it works. Also not sure
if it'll end up destroying stuff so, do take care! Not my fault if
unfortunate stuff happens!
The patch was hastily created on a separate Ubuntu machine with
the source partition mounted, so I couldn't do a compile test nor am I
sure if all the changes I made are in the patch. Tell me if it doesn't
compile after applying the patch, I probably missed a file or two.
Patch is based on the original VGA passthrough patches posted by
Weidong, modified to account for the ROMBIOS code being moved to its
own file. It includes the claim cycle patch for secondary graphics
card passthrough as well.
Remember to place your graphics card's firmware into
tools/firmware/vgabios/ after each "make clean".
Regards,
Liwei
On 20 May 2011 08:11, Gennady Marchenko <gennady.marchenko@gmail.com> wrote:
> Hi Liwei!
> Some days ago you post a report to xen-devel about your tries to run your
> vga in pt mode on xen unstable.So could you share the last patched sources
> are you tried to work?
> Because I can't apply several patch to current unstable could you share it
> please?
> I'm already have done about IGD but can't PT the primary ati 5450 at all :(
> Best wishes,
> Gennady.
[-- Attachment #2: vga-pt-xen42-xieliwei.patch --]
[-- Type: application/octet-stream, Size: 10613 bytes --]
--- tools/firmware/hvmloader/acpi/dsdt.asl.orig 2011-05-05 21:18:46.318462147 +0000
+++ tools/firmware/hvmloader/acpi/dsdt.asl 2011-05-02 12:47:44.000000000 +0000
@@ -167,18 +167,46 @@
DWordMemory(
ResourceProducer, PosDecode, MinFixed, MaxFixed,
Cacheable, ReadWrite,
0x00000000,
0x000A0000,
0x000BFFFF,
0x00000000,
0x00020000)
+ /* reserve MMIO BARs of gfx for 1:1 mapping */
+ DWordMemory(
+ ResourceProducer, PosDecode, MinFixed, MaxFixed,
+ Cacheable, ReadWrite,
+ 0x00000000,
+ 0xE0000000,
+ 0xEFFFFFFF,
+ 0x00000000,
+ 0x10000000)
+
+ DWordMemory(
+ ResourceProducer, PosDecode, MinFixed, MaxFixed,
+ NonCacheable, ReadWrite,
+ 0x00000000,
+ 0xC0000000,
+ 0xC1FFFFFF,
+ 0x00000000,
+ 0x02000000)
+
+ DWordMemory(
+ ResourceProducer, PosDecode, MinFixed, MaxFixed,
+ NonCacheable, ReadWrite,
+ 0x00000000,
+ 0xC2000000,
+ 0xC2FFFFFF,
+ 0x00000000,
+ 0x01000000)
+
DWordMemory(
ResourceProducer, PosDecode, MinFixed, MaxFixed,
Cacheable, ReadWrite,
0x00000000,
0xF0000000,
0xF4FFFFFF,
0x00000000,
0x05000000,
,, _Y01)
--- tools/firmware/hvmloader/hvmloader.c.orig 2011-05-05 21:18:46.314526582 +0000
+++ tools/firmware/hvmloader/hvmloader.c 2011-05-02 15:28:34.000000000 +0000
@@ -28,8 +28,9 @@
#include <xen/version.h>
#include <xen/hvm/params.h>
#define ROM_INCLUDE_VGABIOS
+#define ROM_INCLUDE_PTVGABIOS
#define ROM_INCLUDE_ETHERBOOT
#include "roms.inc"
asm (
@@ -113,8 +114,11 @@
unsigned long pci_mem_end = PCI_MEM_END;
enum virtual_vga virtual_vga = VGA_none;
+/* virtual BDF of pass-throughed gfx */
+uint8_t gfx_bdf;
+
static void init_hypercalls(void)
{
uint32_t eax, ebx, ecx, edx;
unsigned long i;
@@ -432,10 +436,12 @@
vgabios_sz = round_option_rom(sizeof(vgabios_stdvga));
break;
case VGA_pt:
printf("Loading VGABIOS of passthroughed gfx ...\n");
- vgabios_sz =
- round_option_rom((*(uint8_t *)(VGABIOS_PHYSICAL_ADDRESS+2)) * 512);
+ memcpy((void *)VGABIOS_PHYSICAL_ADDRESS,
+ vgabios_pt, sizeof(vgabios_pt));
+ *(uint8_t *)(VGABIOS_PHYSICAL_ADDRESS + sizeof(vgabios_pt)) = gfx_bdf;
+ vgabios_sz = round_option_rom(sizeof(vgabios_pt) + 1);
break;
default:
printf("No emulated VGA adaptor ...\n");
break;
--- tools/firmware/hvmloader/Makefile.orig 2011-05-05 21:18:46.314526582 +0000
+++ tools/firmware/hvmloader/Makefile 2011-05-02 14:33:47.000000000 +0000
@@ -55,8 +55,9 @@
CIRRUSVGA_ROM := ../vgabios/VGABIOS-lgpl-latest.cirrus.debug.bin
else
CIRRUSVGA_ROM := ../vgabios/VGABIOS-lgpl-latest.cirrus.bin
endif
+PTVGA_ROM := ../vgabios/vgabios-pt.bin
.PHONY: all
all: subdirs-all
$(MAKE) hvmloader
@@ -93,8 +94,13 @@
echo "#ifdef ROM_INCLUDE_VGABIOS" >> $@.new
sh ./mkhex vgabios_cirrusvga $(CIRRUSVGA_ROM) >> $@.new
echo "#endif" >> $@.new
endif
+ifneq ($(PTVGA_ROM),)
+ echo "#ifdef ROM_INCLUDE_PTVGABIOS" >> $@.new
+ sh ./mkhex vgabios_pt $(PTVGA_ROM) >> $@.new
+ echo "#endif" >> $@.new
+endif
echo "#ifdef ROM_INCLUDE_ETHERBOOT" >> $@.new
cat ../etherboot/eb-roms.h >> $@.new
echo "#endif" >> $@.new
--- tools/ioemu-remote/hw/pass-through.c.orig 2011-05-05 21:18:44.914414545 +0000
+++ tools/ioemu-remote/hw/pass-through.c 2011-05-03 00:40:39.323043803 +0000
@@ -843,8 +843,77 @@
.grp_size = 0,
},
};
+#define PCI_HEADER_TYPE_ADDR 0x0e
+#define PCI_BRIDGE_FLAG 0x01
+
+#define PCI_CLASS_CODE_ADDR_0 0x09
+#define PCI_CLASS_CODE_ADDR_1 0x0a
+#define PCI_CLASS_CODE_ADDR_2 0x0b
+#define PCI_CLASS_CODE_DATA_0 0x060000
+#define PCI_CLASS_CODE_DATA_1 0x0600
+#define PCI_CLASS_CODE_DATA_2 0x06
+
+#define PCI_SECOND_BUS_NUMBER_ADDR 0x19
+
+#define PCI_BRIDGE_CONTROL_ADDR 0x3e
+#define PCI_BRIDGE_VGA_ENABLE 0x18
+
+#define PCI_GRAPHIC_CONTROL_ADDR 0x52
+#define PCI_HOST_BRIDGE_IGD_VGA_DISABLE 0x02
+
+/*
+ * Claim vga cycle for the graphics card pass-through
+ */
+static uint32_t gfx_claim_vga_cycle(struct pci_access *pci_access,
+ uint32_t bus, uint32_t devfn, uint32_t func)
+{
+ struct pci_dev *pci_dev;
+
+ for ( pci_dev = pci_access->devices; pci_dev != NULL; pci_dev = pci_dev->next )
+ {
+ /* Check whether this is a ordinary bridge */
+ if ( pci_read_byte(pci_dev, PCI_HEADER_TYPE_ADDR) == PCI_BRIDGE_FLAG )
+ {
+ unsigned sec_bus_num = pci_read_byte(pci_dev, PCI_SECOND_BUS_NUMBER_ADDR);
+ unsigned ubrg = pci_read_byte(pci_dev, PCI_BRIDGE_CONTROL_ADDR);
+
+ PT_LOG("bridge for bus %d, previous bridge control is %x\n", sec_bus_num, ubrg);
+ PT_LOG("bus=0x%d, dev=0x%x, func=0x%x\n",pci_dev->bus,pci_dev->dev,pci_dev->func);
+
+ if ( sec_bus_num == bus ) /* VGA device's bridge */
+ ubrg |= PCI_BRIDGE_VGA_ENABLE;
+ else /* Other device's bridge */
+ ubrg &= ~PCI_BRIDGE_VGA_ENABLE;
+
+ pci_write_byte(pci_dev, PCI_BRIDGE_CONTROL_ADDR, ubrg);
+ PT_LOG("bridge for bus %d, updated bridge control is %x\n", sec_bus_num, ubrg);
+ }
+ }
+
+ for ( pci_dev = pci_access->devices; pci_dev != NULL; pci_dev = pci_dev->next )
+ {
+ /* Check host bridge */
+ if ( pci_read_word(pci_dev, PCI_CLASS_CODE_ADDR_1) == PCI_CLASS_CODE_DATA_1 )
+ {
+ unsigned uigd = pci_read_byte(pci_dev, PCI_GRAPHIC_CONTROL_ADDR);
+
+ PT_LOG("previous igd control is %x\n", uigd);
+
+ if ( bus == 0 )
+ uigd &= ~PCI_HOST_BRIDGE_IGD_VGA_DISABLE;
+ else
+ uigd |= PCI_HOST_BRIDGE_IGD_VGA_DISABLE;
+
+ pci_write_byte(pci_dev, PCI_GRAPHIC_CONTROL_ADDR, uigd);
+ PT_LOG("updated igd control is %x\n", uigd);
+ }
+ }
+
+ return 0;
+}
+
static int token_value(char *token)
{
return strtol(token, NULL, 16);
}
@@ -3242,8 +3311,10 @@
return 0;
}
/* read BAR */
+static int gfx_first_read_BAR[7] = {1, 1, 1, 1, 1, 1, 1};
+
static int pt_bar_reg_read(struct pt_dev *ptdev,
struct pt_reg_tbl *cfg_entry,
uint32_t *value, uint32_t valid_mask)
{
@@ -3264,8 +3335,19 @@
/* use fixed-up value from kernel sysfs */
*value = ptdev->pci_dev->base_addr[index];
+ if ( ptdev->pci_dev->device_class == 0x300 )
+ {
+ if ( gfx_first_read_BAR[index] == 1 )
+ {
+ gfx_first_read_BAR[index] = 0;
+ PT_LOG("first read BARs of gfx\n");
+ return 0;
+ }
+ }
+
+
/* set emulate mask depend on BAR flag */
switch (ptdev->bases[index].bar_flag)
{
case PT_BAR_FLAG_MEM:
@@ -4252,8 +4334,15 @@
return NULL;
}
+ if ( pci_dev->device_class == 0x0300 )
+ {
+ rc = gfx_claim_vga_cycle(pci_access, r_bus, r_dev, r_func);
+ if ( rc != 0 )
+ return NULL;
+ }
+
/* reinitialize each config register to be emulated */
rc = pt_config_init(assigned_device);
if ( rc < 0 ) {
return NULL;
--- tools/firmware/hvmloader/rombios.c.orig 2011-05-05 21:18:46.306458208 +0000
+++ tools/firmware/hvmloader/rombios.c 2011-05-02 15:35:04.000000000 +0000
@@ -41,8 +41,11 @@
#define ROMBIOS_SIZE 0x00010000
#define ROMBIOS_MAXOFFSET 0x0000FFFF
#define ROMBIOS_END (ROMBIOS_BEGIN + ROMBIOS_SIZE)
+/* virtual BDF of pass-throughed gfx declared in hvmloader.c*/
+extern uint8_t gfx_bdf;
+
/*
* Set up an empty TSS area for virtual 8086 mode to use.
* The only important thing is that it musn't have any bits set
* in the interrupt redirection bitmap, so all zeros will do.
@@ -151,8 +154,44 @@
else if ( (vendor_id == 0x1013) && (device_id == 0xb8) )
virtual_vga = VGA_cirrus;
else if ( virtual_vga == VGA_none )
virtual_vga = VGA_pt;
+ gfx_bdf = devfn;
+
+ /* Make vBAR=pBAR */
+ printf("Make vBAR = pBAR of assigned gfx\n");
+ for ( bar = 0; bar < 7; bar++ )
+ {
+ bar_reg = PCI_BASE_ADDRESS_0 + 4*bar;
+ if ( bar == 6 )
+ bar_reg = PCI_ROM_ADDRESS;
+ /* When first time read, it will return physical address */
+ bar_data = pci_readl(devfn, bar_reg);
+ pci_writel(devfn, bar_reg, bar_data);
+
+ /* Now enable the memory or I/O mapping. */
+ cmd = pci_readw(devfn, PCI_COMMAND);
+ if ( (bar_reg == PCI_ROM_ADDRESS) ||
+ ((bar_data & PCI_BASE_ADDRESS_SPACE) ==
+ PCI_BASE_ADDRESS_SPACE_MEMORY) )
+ cmd |= PCI_COMMAND_MEMORY;
+ else
+ cmd |= PCI_COMMAND_IO;
+ cmd |= PCI_COMMAND_MASTER;
+ pci_writew(devfn, PCI_COMMAND, cmd);
+ }
+
+ /* Map the interrupt. */
+ pin = pci_readb(devfn, PCI_INTERRUPT_PIN);
+ if ( pin != 0 )
+ {
+ /* This is the barber's pole mapping used by Xen. */
+ link = ((pin - 1) + (devfn >> 3)) & 3;
+ isa_irq = pci_readb(PCI_ISA_DEVFN, 0x60 + link);
+ pci_writeb(devfn, PCI_INTERRUPT_LINE, isa_irq);
+ }
+ continue;
+
break;
case 0x0680:
/* PIIX4 ACPI PM. Special device with special PCI config space. */
ASSERT((vendor_id == 0x8086) && (device_id == 0x7113));
[-- Attachment #3: Type: text/plain, Size: 138 bytes --]
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Xen, ustable and VGA passthrough
2011-05-20 6:08 ` Xen, ustable and VGA passthrough Liwei
@ 2011-05-21 15:58 ` Gennady Marchenko
2011-05-22 11:28 ` Pavel Matěja
2011-05-23 13:20 ` Liwei
2011-05-22 12:00 ` Pavel Matěja
1 sibling, 2 replies; 5+ messages in thread
From: Gennady Marchenko @ 2011-05-21 15:58 UTC (permalink / raw)
To: Liwei; +Cc: xen-devel
[-- Attachment #1.1: Type: text/plain, Size: 4170 bytes --]
Hello again Liwei!
Thanks for your patch it applied good :)
With your patch I can run my ATI 5450 as primary GPU (I have no secondary at
all) as basic VGA:
Windows XP can start and show the desktop if it has no installed drivers. It
is very big progress for me :)
After I installed drivers it can't init the GPU. I think when you tries to
install Win7 you got same - because it already have buildin drivers and
tries to init extended display mode.
My logs is:
root@xen:/var/log/xen# tail -f /var/log/xen/qemu-dm-winxp.log
(here domU started up)
pt_iomem_map: e_phys=d0000000 maddr=d0000000 type=8 len=268435456 index=0
first_map=1
pt_bar_reg_read: first read BARs of gfx
pt_bar_reg_read: first read BARs of gfx
pt_iomem_map: e_phys=febc0000 maddr=febc0000 type=0 len=131072 index=2
first_map=1
pt_bar_reg_read: first read BARs of gfx
pt_bar_reg_read: first read BARs of gfx
pt_ioport_map: e_phys=e000 pio_base=e000 len=256 index=4 first_map=1
pt_iomem_map: e_phys=f1000000 maddr=febfc000 type=0 len=16384 index=0
first_map=1
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw
state.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro
state.
(here I see windows xp 'load' progress with logo, mayb it tries to init vga)
pt_iomem_map: e_phys=ffffffff maddr=d0000000 type=8 len=268435456 index=0
first_map=0
pt_iomem_map: e_phys=ffffffff maddr=febc0000 type=0 len=131072 index=2
first_map=0
pt_ioport_map: e_phys=ffff pio_base=e000 len=256 index=4 first_map=0
pt_iomem_map: e_phys=d0000000 maddr=d0000000 type=8 len=268435456 index=0
first_map=0
pt_iomem_map: e_phys=febc0000 maddr=febc0000 type=0 len=131072 index=2
first_map=0
pt_ioport_map: e_phys=e000 pio_base=e000 len=256 index=4 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=febfc000 type=0 len=16384 index=0
first_map=0
pt_pci_write_config: Warning: Guest attempt to set address to unused Base
Address Register. [00:06.0][Offset:30h][Length:4]
pt_iomem_map: e_phys=f1000000 maddr=febfc000 type=0 len=16384 index=0
first_map=0
(here it must start to show the desktop)
pt_iomem_map: e_phys=ffffffff maddr=d0000000 type=8 len=268435456 index=0
first_map=0
pt_iomem_map: e_phys=ffffffff maddr=febc0000 type=0 len=131072 index=2
first_map=0
pt_ioport_map: e_phys=ffff pio_base=e000 len=256 index=4 first_map=0
pt_iomem_map: e_phys=e0000000 maddr=d0000000 type=8 len=268435456 index=0
first_map=0
pt_iomem_map: e_phys=fbfe0000 maddr=febc0000 type=0 len=131072 index=2
first_map=0
pt_ioport_map: e_phys=e000 pio_base=e000 len=256 index=4 first_map=0
(but something goes wrong :))
reset requested in cpu_handle_ioreq.
Issued domain 6 reboot
It may be problem with memory map in dsdt.asl but I don't know how it may
fix. :(
Thanks a lot for your patch.
Gennady.
On Fri, May 20, 2011 at 10:08 AM, Liwei <xieliwei@gmail.com> wrote:
> Hello Gennady!
> Wasn't planning on posting the patch until it works. Also not sure
> if it'll end up destroying stuff so, do take care! Not my fault if
> unfortunate stuff happens!
> The patch was hastily created on a separate Ubuntu machine with
> the source partition mounted, so I couldn't do a compile test nor am I
> sure if all the changes I made are in the patch. Tell me if it doesn't
> compile after applying the patch, I probably missed a file or two.
> Patch is based on the original VGA passthrough patches posted by
> Weidong, modified to account for the ROMBIOS code being moved to its
> own file. It includes the claim cycle patch for secondary graphics
> card passthrough as well.
> Remember to place your graphics card's firmware into
> tools/firmware/vgabios/ after each "make clean".
>
> Regards,
> Liwei
>
>
> On 20 May 2011 08:11, Gennady Marchenko <gennady.marchenko@gmail.com>
> wrote:
> > Hi Liwei!
> > Some days ago you post a report to xen-devel about your tries to run your
> > vga in pt mode on xen unstable.So could you share the last patched
> sources
> > are you tried to work?
> > Because I can't apply several patch to current unstable could you share
> it
> > please?
> > I'm already have done about IGD but can't PT the primary ati 5450 at all
> :(
> > Best wishes,
> > Gennady.
>
[-- Attachment #1.2: Type: text/html, Size: 5366 bytes --]
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Re: Xen, ustable and VGA passthrough
2011-05-21 15:58 ` Gennady Marchenko
@ 2011-05-22 11:28 ` Pavel Matěja
2011-05-23 13:20 ` Liwei
1 sibling, 0 replies; 5+ messages in thread
From: Pavel Matěja @ 2011-05-22 11:28 UTC (permalink / raw)
To: xen-devel
On Sat 21. of May 2011 17:58:19 Gennady Marchenko wrote:
> Hello again Liwei!
>
> Thanks for your patch it applied good :)
>
> With your patch I can run my ATI 5450 as primary GPU (I have no secondary
> at all) as basic VGA:
>
> Windows XP can start and show the desktop if it has no installed drivers.
> It is very big progress for me :)
>
> After I installed drivers it can't init the GPU. I think when you tries to
> install Win7 you got same - because it already have buildin drivers and
> tries to init extended display mode.
Hey,
do you have AMD VGA Passthrough patch applied?
I have HD6850 as primary VGA and I was able to install Windows XP and 7 with
AMD drivers without problem. I just was not able to see early parts of boot.
This patch breaks boot of the virtual system completely.
--
Pavel Mateja
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Re: Xen, ustable and VGA passthrough
2011-05-20 6:08 ` Xen, ustable and VGA passthrough Liwei
2011-05-21 15:58 ` Gennady Marchenko
@ 2011-05-22 12:00 ` Pavel Matěja
1 sibling, 0 replies; 5+ messages in thread
From: Pavel Matěja @ 2011-05-22 12:00 UTC (permalink / raw)
To: xen-devel
On Fri 20. of May 2011 08:08:20 Liwei wrote:
> Hello Gennady!
> Wasn't planning on posting the patch until it works. Also not sure
> if it'll end up destroying stuff so, do take care! Not my fault if
> unfortunate stuff happens!
> The patch was hastily created on a separate Ubuntu machine with
> the source partition mounted, so I couldn't do a compile test nor am I
> sure if all the changes I made are in the patch. Tell me if it doesn't
> compile after applying the patch, I probably missed a file or two.
> Patch is based on the original VGA passthrough patches posted by
> Weidong, modified to account for the ROMBIOS code being moved to its
> own file. It includes the claim cycle patch for secondary graphics
> card passthrough as well.
Hey,
May I have few questions about you patch?
I was looking for ways to load VGA BIOS into virtual machine and two of them
showed up.
FIrst is in your patch.
Second is to load VGA BIOS from disk in pt-graphics.c function get_vgabios.
You way seems to be much mor complicated. What's the gain there?
What is the gfx_first_read_BAR array good for? You just thow away first read of
every BAR there.
--
Pavel Mateja
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Xen, ustable and VGA passthrough
2011-05-21 15:58 ` Gennady Marchenko
2011-05-22 11:28 ` Pavel Matěja
@ 2011-05-23 13:20 ` Liwei
1 sibling, 0 replies; 5+ messages in thread
From: Liwei @ 2011-05-23 13:20 UTC (permalink / raw)
To: Gennady Marchenko; +Cc: xen-devel, xen-users
(I'm still unsure which list to post to, so I'm cross posting again.
Prehaps someone can recommend me which list to stick to?)
Hey,
Just to tell you I've read your email and will keep you updated
when I get down to trying again. Currently the computer I'm trying to
passthrough on is my work computer, so it takes some motivation for me
to reboot it into xen. =)
Meanwhile, you can check out these two email snippets I've
collected over the week (I've lost their sources, but they're part of
the threads pointed to in the VGAPassthrough wiki page).
----------------------------------------
(This one shows how to properly reserve the memory ranges)
----------------------------------------
I forgot to mention that you should change memory addresses in
xen-vBAR-pBAR.patch according to your MMIO BARs of your assigned gfx
card.
For example, the output of 'lspci -s 01:00.0 -v':
01:00.0 VGA compatible controller: nVidia Corporation Unknown
device 05ff (rev a1) (prog-if 00 [VGA controller])
Subsystem: nVidia Corporation Unknown device 0661
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at c2000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at c0000000 (64-bit, non-prefetchable) [size=32M]
I/O ports at 9c00 [size=128]
Expansion ROM at bff00000 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] Message Signalled Interrupts: 64bit+
Queue=0/0 Enable+
Capabilities: [78] Express Endpoint IRQ 0
you can see I reserve above memories in dsdt.asl in
xen-vBAR-pBAR.patch. you should replace them with memories of your
gfx.
----------------------------------------
----------------------------------------
(I'm having a problem similar to this one. My VGA ROM is actually
bigger than what xen allocated. I recall the first VGA passthrough
patch manually modified the range, so I'd try that. You might want to
check if your ROM size is larger than xen can handle too.)
----------------------------------------
I suspect your vga bios file is incorrect, its size is very small. I found
following VGA bios in xm_dmesg.log: ... (XEN) HVM1: BIOS map: (XEN)
HVM1: c0000-c07ff: VGA BIOS ...
You can check if the VGA bios is really loaded. You can use 'xxd vgabios-pt.bin'
to see the VGA bios content, of course you can see the size. After you apply the
patches I posted and mak the code, you can see vgabios_pt[] in
xen-unstable.hg/tools/firmware/hvmloader/roms.h. content of vgabios_pt[] should
be the same with output of 'xxd vgabios-pt.bin'.
----------------------------------------
Do keep everyone updated on the Xen list.
Liwei
On 21 May 2011 23:58, Gennady Marchenko <gennady.marchenko@gmail.com> wrote:
> Hello again Liwei!
> Thanks for your patch it applied good :)
> With your patch I can run my ATI 5450 as primary GPU (I have no secondary at
> all) as basic VGA:
> Windows XP can start and show the desktop if it has no installed drivers. It
> is very big progress for me :)
> After I installed drivers it can't init the GPU. I think when you tries to
> install Win7 you got same - because it already have buildin drivers and
> tries to init extended display mode.
> My logs is:
> root@xen:/var/log/xen# tail -f /var/log/xen/qemu-dm-winxp.log
> (here domU started up)
> pt_iomem_map: e_phys=d0000000 maddr=d0000000 type=8 len=268435456 index=0
> first_map=1
> pt_bar_reg_read: first read BARs of gfx
> pt_bar_reg_read: first read BARs of gfx
> pt_iomem_map: e_phys=febc0000 maddr=febc0000 type=0 len=131072 index=2
> first_map=1
> pt_bar_reg_read: first read BARs of gfx
> pt_bar_reg_read: first read BARs of gfx
> pt_ioport_map: e_phys=e000 pio_base=e000 len=256 index=4 first_map=1
> pt_iomem_map: e_phys=f1000000 maddr=febfc000 type=0 len=16384 index=0
> first_map=1
> platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw
> state.
> platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro
> state.
>
>
>
> (here I see windows xp 'load' progress with logo, mayb it tries to init vga)
> pt_iomem_map: e_phys=ffffffff maddr=d0000000 type=8 len=268435456 index=0
> first_map=0
> pt_iomem_map: e_phys=ffffffff maddr=febc0000 type=0 len=131072 index=2
> first_map=0
> pt_ioport_map: e_phys=ffff pio_base=e000 len=256 index=4 first_map=0
> pt_iomem_map: e_phys=d0000000 maddr=d0000000 type=8 len=268435456 index=0
> first_map=0
> pt_iomem_map: e_phys=febc0000 maddr=febc0000 type=0 len=131072 index=2
> first_map=0
> pt_ioport_map: e_phys=e000 pio_base=e000 len=256 index=4 first_map=0
> pt_iomem_map: e_phys=ffffffff maddr=febfc000 type=0 len=16384 index=0
> first_map=0
> pt_pci_write_config: Warning: Guest attempt to set address to unused Base
> Address Register. [00:06.0][Offset:30h][Length:4]
> pt_iomem_map: e_phys=f1000000 maddr=febfc000 type=0 len=16384 index=0
> first_map=0
>
> (here it must start to show the desktop)
> pt_iomem_map: e_phys=ffffffff maddr=d0000000 type=8 len=268435456 index=0
> first_map=0
> pt_iomem_map: e_phys=ffffffff maddr=febc0000 type=0 len=131072 index=2
> first_map=0
> pt_ioport_map: e_phys=ffff pio_base=e000 len=256 index=4 first_map=0
> pt_iomem_map: e_phys=e0000000 maddr=d0000000 type=8 len=268435456 index=0
> first_map=0
> pt_iomem_map: e_phys=fbfe0000 maddr=febc0000 type=0 len=131072 index=2
> first_map=0
> pt_ioport_map: e_phys=e000 pio_base=e000 len=256 index=4 first_map=0
> (but something goes wrong :))
> reset requested in cpu_handle_ioreq.
> Issued domain 6 reboot
> It may be problem with memory map in dsdt.asl but I don't know how it may
> fix. :(
> Thanks a lot for your patch.
> Gennady.
>
> On Fri, May 20, 2011 at 10:08 AM, Liwei <xieliwei@gmail.com> wrote:
>>
>> Hello Gennady!
>> Wasn't planning on posting the patch until it works. Also not sure
>> if it'll end up destroying stuff so, do take care! Not my fault if
>> unfortunate stuff happens!
>> The patch was hastily created on a separate Ubuntu machine with
>> the source partition mounted, so I couldn't do a compile test nor am I
>> sure if all the changes I made are in the patch. Tell me if it doesn't
>> compile after applying the patch, I probably missed a file or two.
>> Patch is based on the original VGA passthrough patches posted by
>> Weidong, modified to account for the ROMBIOS code being moved to its
>> own file. It includes the claim cycle patch for secondary graphics
>> card passthrough as well.
>> Remember to place your graphics card's firmware into
>> tools/firmware/vgabios/ after each "make clean".
>>
>> Regards,
>> Liwei
>>
>>
>> On 20 May 2011 08:11, Gennady Marchenko <gennady.marchenko@gmail.com>
>> wrote:
>> > Hi Liwei!
>> > Some days ago you post a report to xen-devel about your tries to run
>> > your
>> > vga in pt mode on xen unstable.So could you share the last patched
>> > sources
>> > are you tried to work?
>> > Because I can't apply several patch to current unstable could you share
>> > it
>> > please?
>> > I'm already have done about IGD but can't PT the primary ati 5450 at all
>> > :(
>> > Best wishes,
>> > Gennady.
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2011-05-23 13:20 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2011-05-20 6:08 ` Xen, ustable and VGA passthrough Liwei
2011-05-21 15:58 ` Gennady Marchenko
2011-05-22 11:28 ` Pavel Matěja
2011-05-23 13:20 ` Liwei
2011-05-22 12:00 ` Pavel Matěja
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