From: Zhenzhong Duan <zhenzhong.duan@intel.com>
To: qemu-devel@nongnu.org
Cc: alex.williamson@redhat.com, clg@redhat.com, jgg@nvidia.com,
nicolinc@nvidia.com, joao.m.martins@oracle.com,
eric.auger@redhat.com, peterx@redhat.com, jasowang@redhat.com,
kevin.tian@intel.com, yi.l.liu@intel.com, yi.y.sun@intel.com,
chao.p.peng@intel.com, Zhenzhong Duan <zhenzhong.duan@intel.com>
Subject: [PATCH v5 17/20] vfio: Make VFIOContainerBase poiner parameter const in VFIOIOMMUOps callbacks
Date: Thu, 9 Nov 2023 19:45:26 +0800 [thread overview]
Message-ID: <20231109114529.1904193-18-zhenzhong.duan@intel.com> (raw)
In-Reply-To: <20231109114529.1904193-1-zhenzhong.duan@intel.com>
Some of the callbacks in VFIOIOMMUOps pass VFIOContainerBase poiner,
those callbacks only need read access to the sub object of VFIOContainerBase.
So make VFIOContainerBase, VFIOContainer and VFIOIOMMUFDContainer as const
in these callbacks.
Local functions called by those callbacks also need same changes to avoid
build error.
Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
---
include/hw/vfio/vfio-common.h | 12 ++++++----
include/hw/vfio/vfio-container-base.h | 12 ++++++----
hw/vfio/common.c | 9 +++----
hw/vfio/container-base.c | 2 +-
hw/vfio/container.c | 34 ++++++++++++++-------------
hw/vfio/iommufd.c | 8 +++----
6 files changed, 42 insertions(+), 35 deletions(-)
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index 960a14e8d8..b3ba22acc3 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -245,11 +245,13 @@ bool vfio_migration_realize(VFIODevice *vbasedev, Error **errp);
void vfio_migration_exit(VFIODevice *vbasedev);
int vfio_bitmap_alloc(VFIOBitmap *vbmap, hwaddr size);
-bool vfio_devices_all_running_and_mig_active(VFIOContainerBase *bcontainer);
-bool vfio_devices_all_device_dirty_tracking(VFIOContainerBase *bcontainer);
-int vfio_devices_query_dirty_bitmap(VFIOContainerBase *bcontainer,
+bool
+vfio_devices_all_running_and_mig_active(const VFIOContainerBase *bcontainer);
+bool
+vfio_devices_all_device_dirty_tracking(const VFIOContainerBase *bcontainer);
+int vfio_devices_query_dirty_bitmap(const VFIOContainerBase *bcontainer,
VFIOBitmap *vbmap, hwaddr iova,
hwaddr size);
-int vfio_get_dirty_bitmap(VFIOContainerBase *bcontainer, uint64_t iova,
- uint64_t size, ram_addr_t ram_addr);
+int vfio_get_dirty_bitmap(const VFIOContainerBase *bcontainer, uint64_t iova,
+ uint64_t size, ram_addr_t ram_addr);
#endif /* HW_VFIO_VFIO_COMMON_H */
diff --git a/include/hw/vfio/vfio-container-base.h b/include/hw/vfio/vfio-container-base.h
index 45bb19c767..2ae297ccda 100644
--- a/include/hw/vfio/vfio-container-base.h
+++ b/include/hw/vfio/vfio-container-base.h
@@ -82,7 +82,7 @@ void vfio_container_del_section_window(VFIOContainerBase *bcontainer,
MemoryRegionSection *section);
int vfio_container_set_dirty_page_tracking(VFIOContainerBase *bcontainer,
bool start);
-int vfio_container_query_dirty_bitmap(VFIOContainerBase *bcontainer,
+int vfio_container_query_dirty_bitmap(const VFIOContainerBase *bcontainer,
VFIOBitmap *vbmap,
hwaddr iova, hwaddr size);
@@ -93,18 +93,20 @@ void vfio_container_destroy(VFIOContainerBase *bcontainer);
struct VFIOIOMMUOps {
/* basic feature */
- int (*dma_map)(VFIOContainerBase *bcontainer,
+ int (*dma_map)(const VFIOContainerBase *bcontainer,
hwaddr iova, ram_addr_t size,
void *vaddr, bool readonly);
- int (*dma_unmap)(VFIOContainerBase *bcontainer,
+ int (*dma_unmap)(const VFIOContainerBase *bcontainer,
hwaddr iova, ram_addr_t size,
IOMMUTLBEntry *iotlb);
int (*attach_device)(const char *name, VFIODevice *vbasedev,
AddressSpace *as, Error **errp);
void (*detach_device)(VFIODevice *vbasedev);
/* migration feature */
- int (*set_dirty_page_tracking)(VFIOContainerBase *bcontainer, bool start);
- int (*query_dirty_bitmap)(VFIOContainerBase *bcontainer, VFIOBitmap *vbmap,
+ int (*set_dirty_page_tracking)(const VFIOContainerBase *bcontainer,
+ bool start);
+ int (*query_dirty_bitmap)(const VFIOContainerBase *bcontainer,
+ VFIOBitmap *vbmap,
hwaddr iova, hwaddr size);
/* PCI specific */
int (*pci_hot_reset)(VFIODevice *vbasedev, bool single);
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 3b7e11158f..8ca52d9636 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -204,7 +204,7 @@ static bool vfio_devices_all_dirty_tracking(VFIOContainerBase *bcontainer)
return true;
}
-bool vfio_devices_all_device_dirty_tracking(VFIOContainerBase *bcontainer)
+bool vfio_devices_all_device_dirty_tracking(const VFIOContainerBase *bcontainer)
{
VFIODevice *vbasedev;
@@ -221,7 +221,8 @@ bool vfio_devices_all_device_dirty_tracking(VFIOContainerBase *bcontainer)
* Check if all VFIO devices are running and migration is active, which is
* essentially equivalent to the migration being in pre-copy phase.
*/
-bool vfio_devices_all_running_and_mig_active(VFIOContainerBase *bcontainer)
+bool
+vfio_devices_all_running_and_mig_active(const VFIOContainerBase *bcontainer)
{
VFIODevice *vbasedev;
@@ -1139,7 +1140,7 @@ static int vfio_device_dma_logging_report(VFIODevice *vbasedev, hwaddr iova,
return 0;
}
-int vfio_devices_query_dirty_bitmap(VFIOContainerBase *bcontainer,
+int vfio_devices_query_dirty_bitmap(const VFIOContainerBase *bcontainer,
VFIOBitmap *vbmap, hwaddr iova,
hwaddr size)
{
@@ -1162,7 +1163,7 @@ int vfio_devices_query_dirty_bitmap(VFIOContainerBase *bcontainer,
return 0;
}
-int vfio_get_dirty_bitmap(VFIOContainerBase *bcontainer, uint64_t iova,
+int vfio_get_dirty_bitmap(const VFIOContainerBase *bcontainer, uint64_t iova,
uint64_t size, ram_addr_t ram_addr)
{
bool all_device_dirty_tracking =
diff --git a/hw/vfio/container-base.c b/hw/vfio/container-base.c
index eee2dcfe76..1ffd25bbfa 100644
--- a/hw/vfio/container-base.c
+++ b/hw/vfio/container-base.c
@@ -63,7 +63,7 @@ int vfio_container_set_dirty_page_tracking(VFIOContainerBase *bcontainer,
return bcontainer->ops->set_dirty_page_tracking(bcontainer, start);
}
-int vfio_container_query_dirty_bitmap(VFIOContainerBase *bcontainer,
+int vfio_container_query_dirty_bitmap(const VFIOContainerBase *bcontainer,
VFIOBitmap *vbmap,
hwaddr iova, hwaddr size)
{
diff --git a/hw/vfio/container.c b/hw/vfio/container.c
index cb957d063b..6180e71e3a 100644
--- a/hw/vfio/container.c
+++ b/hw/vfio/container.c
@@ -61,11 +61,11 @@ static int vfio_ram_block_discard_disable(VFIOContainer *container, bool state)
}
}
-static int vfio_dma_unmap_bitmap(VFIOContainer *container,
+static int vfio_dma_unmap_bitmap(const VFIOContainer *container,
hwaddr iova, ram_addr_t size,
IOMMUTLBEntry *iotlb)
{
- VFIOContainerBase *bcontainer = &container->bcontainer;
+ const VFIOContainerBase *bcontainer = &container->bcontainer;
struct vfio_iommu_type1_dma_unmap *unmap;
struct vfio_bitmap *bitmap;
VFIOBitmap vbmap;
@@ -117,11 +117,12 @@ unmap_exit:
/*
* DMA - Mapping and unmapping for the "type1" IOMMU interface used on x86
*/
-static int vfio_legacy_dma_unmap(VFIOContainerBase *bcontainer, hwaddr iova,
- ram_addr_t size, IOMMUTLBEntry *iotlb)
+static int vfio_legacy_dma_unmap(const VFIOContainerBase *bcontainer,
+ hwaddr iova, ram_addr_t size,
+ IOMMUTLBEntry *iotlb)
{
- VFIOContainer *container = container_of(bcontainer, VFIOContainer,
- bcontainer);
+ const VFIOContainer *container = container_of(bcontainer, VFIOContainer,
+ bcontainer);
struct vfio_iommu_type1_dma_unmap unmap = {
.argsz = sizeof(unmap),
.flags = 0,
@@ -174,11 +175,11 @@ static int vfio_legacy_dma_unmap(VFIOContainerBase *bcontainer, hwaddr iova,
return 0;
}
-static int vfio_legacy_dma_map(VFIOContainerBase *bcontainer, hwaddr iova,
+static int vfio_legacy_dma_map(const VFIOContainerBase *bcontainer, hwaddr iova,
ram_addr_t size, void *vaddr, bool readonly)
{
- VFIOContainer *container = container_of(bcontainer, VFIOContainer,
- bcontainer);
+ const VFIOContainer *container = container_of(bcontainer, VFIOContainer,
+ bcontainer);
struct vfio_iommu_type1_dma_map map = {
.argsz = sizeof(map),
.flags = VFIO_DMA_MAP_FLAG_READ,
@@ -207,11 +208,12 @@ static int vfio_legacy_dma_map(VFIOContainerBase *bcontainer, hwaddr iova,
return -errno;
}
-static int vfio_legacy_set_dirty_page_tracking(VFIOContainerBase *bcontainer,
- bool start)
+static int
+vfio_legacy_set_dirty_page_tracking(const VFIOContainerBase *bcontainer,
+ bool start)
{
- VFIOContainer *container = container_of(bcontainer, VFIOContainer,
- bcontainer);
+ const VFIOContainer *container = container_of(bcontainer, VFIOContainer,
+ bcontainer);
int ret;
struct vfio_iommu_type1_dirty_bitmap dirty = {
.argsz = sizeof(dirty),
@@ -233,12 +235,12 @@ static int vfio_legacy_set_dirty_page_tracking(VFIOContainerBase *bcontainer,
return ret;
}
-static int vfio_legacy_query_dirty_bitmap(VFIOContainerBase *bcontainer,
+static int vfio_legacy_query_dirty_bitmap(const VFIOContainerBase *bcontainer,
VFIOBitmap *vbmap,
hwaddr iova, hwaddr size)
{
- VFIOContainer *container = container_of(bcontainer, VFIOContainer,
- bcontainer);
+ const VFIOContainer *container = container_of(bcontainer, VFIOContainer,
+ bcontainer);
struct vfio_iommu_type1_dirty_bitmap *dbitmap;
struct vfio_iommu_type1_dirty_bitmap_get *range;
int ret;
diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c
index fd30477275..e13c685255 100644
--- a/hw/vfio/iommufd.c
+++ b/hw/vfio/iommufd.c
@@ -26,10 +26,10 @@
#include "qemu/chardev_open.h"
#include "pci.h"
-static int iommufd_map(VFIOContainerBase *bcontainer, hwaddr iova,
+static int iommufd_map(const VFIOContainerBase *bcontainer, hwaddr iova,
ram_addr_t size, void *vaddr, bool readonly)
{
- VFIOIOMMUFDContainer *container =
+ const VFIOIOMMUFDContainer *container =
container_of(bcontainer, VFIOIOMMUFDContainer, bcontainer);
return iommufd_backend_map_dma(container->be,
@@ -37,11 +37,11 @@ static int iommufd_map(VFIOContainerBase *bcontainer, hwaddr iova,
iova, size, vaddr, readonly);
}
-static int iommufd_unmap(VFIOContainerBase *bcontainer,
+static int iommufd_unmap(const VFIOContainerBase *bcontainer,
hwaddr iova, ram_addr_t size,
IOMMUTLBEntry *iotlb)
{
- VFIOIOMMUFDContainer *container =
+ const VFIOIOMMUFDContainer *container =
container_of(bcontainer, VFIOIOMMUFDContainer, bcontainer);
/* TODO: Handle dma_unmap_bitmap with iotlb args (migration) */
--
2.34.1
next prev parent reply other threads:[~2023-11-09 12:03 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-09 11:45 [PATCH v5 00/20] vfio: Adopt iommufd Zhenzhong Duan
2023-11-09 11:45 ` [PATCH v5 01/20] backends/iommufd: Introduce the iommufd object Zhenzhong Duan
2023-11-09 11:45 ` [PATCH v5 02/20] util/char_dev: Add open_cdev() Zhenzhong Duan
2023-11-09 11:45 ` [PATCH v5 03/20] vfio/iommufd: Implement the iommufd backend Zhenzhong Duan
2023-11-10 9:34 ` Cédric Le Goater
2023-11-10 10:18 ` Duan, Zhenzhong
2023-11-13 11:04 ` Cédric Le Goater
2023-11-14 2:58 ` Duan, Zhenzhong
2023-11-11 17:47 ` Nicolin Chen
2023-11-13 3:30 ` Duan, Zhenzhong
2023-11-09 11:45 ` [PATCH v5 04/20] vfio/iommufd: Relax assert check for " Zhenzhong Duan
2023-11-10 9:35 ` Cédric Le Goater
2023-11-09 11:45 ` [PATCH v5 05/20] vfio/iommufd: Add support for iova_ranges and pgsizes Zhenzhong Duan
2023-11-10 9:36 ` Cédric Le Goater
2023-11-10 10:03 ` Duan, Zhenzhong
2023-11-09 11:45 ` [PATCH v5 06/20] vfio/pci: Extract out a helper vfio_pci_get_pci_hot_reset_info Zhenzhong Duan
2023-11-09 11:45 ` [PATCH v5 07/20] vfio/pci: Introduce a vfio pci hot reset interface Zhenzhong Duan
2023-11-09 11:45 ` [PATCH v5 08/20] vfio/iommufd: Enable pci hot reset through iommufd cdev interface Zhenzhong Duan
2023-11-09 11:45 ` [PATCH v5 09/20] vfio/pci: Allow the selection of a given iommu backend Zhenzhong Duan
2023-11-09 11:45 ` [PATCH v5 10/20] vfio/pci: Make vfio cdev pre-openable by passing a file handle Zhenzhong Duan
2023-11-10 10:52 ` Cédric Le Goater
2023-11-13 3:00 ` Duan, Zhenzhong
2023-11-13 11:08 ` Cédric Le Goater
2023-11-14 3:00 ` Duan, Zhenzhong
2023-11-09 11:45 ` [PATCH v5 11/20] vfio/platform: Allow the selection of a given iommu backend Zhenzhong Duan
2023-11-10 8:50 ` Cédric Le Goater
2023-11-10 9:08 ` Duan, Zhenzhong
2023-11-09 11:45 ` [PATCH v5 12/20] vfio/platform: Make vfio cdev pre-openable by passing a file handle Zhenzhong Duan
2023-11-09 11:45 ` [PATCH v5 13/20] vfio/ap: Allow the selection of a given iommu backend Zhenzhong Duan
2023-11-09 22:57 ` Matthew Rosato
2023-11-09 11:45 ` [PATCH v5 14/20] vfio/ap: Make vfio cdev pre-openable by passing a file handle Zhenzhong Duan
2023-11-09 22:57 ` Matthew Rosato
2023-11-09 11:45 ` [PATCH v5 15/20] vfio/ccw: Allow the selection of a given iommu backend Zhenzhong Duan
2023-11-09 22:57 ` Matthew Rosato
2023-11-09 11:45 ` [PATCH v5 16/20] vfio/ccw: Make vfio cdev pre-openable by passing a file handle Zhenzhong Duan
2023-11-09 22:57 ` Matthew Rosato
2023-11-09 11:45 ` Zhenzhong Duan [this message]
2023-11-09 11:45 ` [PATCH v5 18/20] hw/arm: Activate IOMMUFD for virt machines Zhenzhong Duan
2023-11-09 11:45 ` [PATCH v5 19/20] kconfig: Activate IOMMUFD for s390x machines Zhenzhong Duan
2023-11-09 23:00 ` Matthew Rosato
2023-11-10 3:16 ` Duan, Zhenzhong
2023-11-10 9:38 ` Cédric Le Goater
2023-11-09 11:45 ` [PATCH v5 20/20] hw/i386: Activate IOMMUFD for q35 machines Zhenzhong Duan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20231109114529.1904193-18-zhenzhong.duan@intel.com \
--to=zhenzhong.duan@intel.com \
--cc=alex.williamson@redhat.com \
--cc=chao.p.peng@intel.com \
--cc=clg@redhat.com \
--cc=eric.auger@redhat.com \
--cc=jasowang@redhat.com \
--cc=jgg@nvidia.com \
--cc=joao.m.martins@oracle.com \
--cc=kevin.tian@intel.com \
--cc=nicolinc@nvidia.com \
--cc=peterx@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=yi.l.liu@intel.com \
--cc=yi.y.sun@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).