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OvmfPkg/VirtioGpuDxe: take EFI_PHYSICAL_ADDRESS in ResourceAttachBacking() 

The RESOURCE_ATTACH_BACKING virtio GPU command assigns guest-side backing
pages to a host-side resource that was created earlier with the
RESOURCE_CREATE_2D command.

We compose the RESOURCE_ATTACH_BACKING command in the
VirtioGpuResourceAttachBacking() function. Currently this function takes
the parameter

  IN VOID *FirstBackingPage

This is only appropriate as long as we pass a (guest-phys) system memory
address to the device. In preparation for a mapped bus master device
address, change the above parameter to

  IN EFI_PHYSICAL_ADDRESS BackingStoreDeviceAddress

In order to keep the current call site functional, move the (VOID*) to
(UINTN) conversion out of the function, to the call site.

The "Request.Entry.Addr" field already has type UINT64.

This patch is similar to commit 4b725858de ("OvmfPkg/VirtioLib: change
the parameter of VirtioAppendDesc() to UINT64", 2017-08-23).

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Brijesh Singh <brijesh.singh@amd.com>
This commit is contained in:
Laszlo Ersek 2017-08-26 19:54:49 +02:00
parent 067b648332
commit 5409c6abc8
3 changed files with 13 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
OvmfPkg/VirtioGpuDxe/Commands.c
View File

@ -496,10 +496,10 @@ VirtioGpuResourceUnref (
EFI_STATUS
VirtioGpuResourceAttachBacking (
IN OUT VGPU_DEV *VgpuDev,
IN UINT32 ResourceId,
IN VOID *FirstBackingPage,
IN UINTN NumberOfPages
IN OUT VGPU_DEV *VgpuDev,
IN UINT32 ResourceId,
IN EFI_PHYSICAL_ADDRESS BackingStoreDeviceAddress,
IN UINTN NumberOfPages
)
{
volatile VIRTIO_GPU_RESOURCE_ATTACH_BACKING Request;
@ -510,7 +510,7 @@ VirtioGpuResourceAttachBacking (
Request.ResourceId = ResourceId;
Request.NrEntries = 1;
Request.Entry.Addr = (UINTN)FirstBackingPage;
Request.Entry.Addr = BackingStoreDeviceAddress;
Request.Entry.Length = (UINT32)EFI_PAGES_TO_SIZE (NumberOfPages);
Request.Entry.Padding = 0;

8
OvmfPkg/VirtioGpuDxe/Gop.c
View File

@ -313,10 +313,10 @@ GopSetMode (
// Attach backing store to the host resource.
//
Status = VirtioGpuResourceAttachBacking (
VgpuGop->ParentBus, // VgpuDev
NewResourceId, // ResourceId
NewBackingStore, // FirstBackingPage
NewNumberOfPages // NumberOfPages
VgpuGop->ParentBus, // VgpuDev
NewResourceId, // ResourceId
(UINTN)NewBackingStore, // BackingStoreDeviceAddress
NewNumberOfPages // NumberOfPages
);
if (EFI_ERROR (Status)) {
goto FreeBackingStore;

8
OvmfPkg/VirtioGpuDxe/VirtioGpu.h
View File

@ -252,10 +252,10 @@ VirtioGpuResourceUnref (
EFI_STATUS
VirtioGpuResourceAttachBacking (
IN OUT VGPU_DEV *VgpuDev,
IN UINT32 ResourceId,
IN VOID *FirstBackingPage,
IN UINTN NumberOfPages
IN OUT VGPU_DEV *VgpuDev,
IN UINT32 ResourceId,
IN EFI_PHYSICAL_ADDRESS BackingStoreDeviceAddress,
IN UINTN NumberOfPages
);
EFI_STATUS