diff options
| -rw-r--r-- | OvmfPkg/VirtioGpuDxe/Gop.c | 92 | ||||
| -rw-r--r-- | OvmfPkg/VirtioGpuDxe/VirtioGpu.h | 6 | ||||
| -rw-r--r-- | OvmfPkg/VirtioGpuDxe/VirtioGpu.inf | 6 |
3 files changed, 99 insertions, 5 deletions
diff --git a/OvmfPkg/VirtioGpuDxe/Gop.c b/OvmfPkg/VirtioGpuDxe/Gop.c index 05daefc..70a81c1 100644 --- a/OvmfPkg/VirtioGpuDxe/Gop.c +++ b/OvmfPkg/VirtioGpuDxe/Gop.c @@ -9,6 +9,7 @@ **/
#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
#include "VirtioGpu.h"
@@ -195,11 +196,54 @@ STATIC CONST GOP_RESOLUTION mGopResolutions[] = { STATIC
VOID
EFIAPI
+GopNativeResolution (
+ IN VGPU_GOP *VgpuGop,
+ OUT UINT32 *XRes,
+ OUT UINT32 *YRes
+ )
+{
+ volatile VIRTIO_GPU_RESP_DISPLAY_INFO DisplayInfo;
+ EFI_STATUS Status;
+ UINTN Index;
+
+ Status = VirtioGpuGetDisplayInfo (VgpuGop->ParentBus, &DisplayInfo);
+ if (Status != EFI_SUCCESS) {
+ return;
+ }
+
+ for (Index = 0; Index < VIRTIO_GPU_MAX_SCANOUTS; Index++) {
+ if (!DisplayInfo.Pmodes[Index].Enabled ||
+ !DisplayInfo.Pmodes[Index].Rectangle.Width ||
+ !DisplayInfo.Pmodes[Index].Rectangle.Height)
+ {
+ continue;
+ }
+
+ DEBUG ((
+ DEBUG_INFO,
+ "%a: #%d: %dx%d\n",
+ __FUNCTION__,
+ Index,
+ DisplayInfo.Pmodes[Index].Rectangle.Width,
+ DisplayInfo.Pmodes[Index].Rectangle.Height
+ ));
+ if ((*XRes == 0) || (*YRes == 0)) {
+ *XRes = DisplayInfo.Pmodes[Index].Rectangle.Width;
+ *YRes = DisplayInfo.Pmodes[Index].Rectangle.Height;
+ }
+ }
+}
+
+STATIC
+VOID
+EFIAPI
GopInitialize (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This
)
{
- VGPU_GOP *VgpuGop;
+ VGPU_GOP *VgpuGop;
+ EFI_STATUS Status;
+ UINT32 XRes = 0, YRes = 0, Index;
VgpuGop = VGPU_GOP_FROM_GOP (This);
@@ -216,6 +260,37 @@ GopInitialize ( VgpuGop->GopMode.SizeOfInfo = sizeof VgpuGop->GopModeInfo;
VgpuGop->GopModeInfo.PixelFormat = PixelBltOnly;
+
+ //
+ // query host for display resolution
+ //
+ GopNativeResolution (VgpuGop, &XRes, &YRes);
+ if ((XRes == 0) || (YRes == 0)) {
+ return;
+ }
+
+ if (PcdGet8 (PcdVideoResolutionSource) == 0) {
+ Status = PcdSet32S (PcdVideoHorizontalResolution, XRes);
+ ASSERT_RETURN_ERROR (Status);
+ Status = PcdSet32S (PcdVideoVerticalResolution, YRes);
+ ASSERT_RETURN_ERROR (Status);
+ Status = PcdSet8S (PcdVideoResolutionSource, 2);
+ ASSERT_RETURN_ERROR (Status);
+ }
+
+ VgpuGop->NativeXRes = XRes;
+ VgpuGop->NativeYRes = YRes;
+ for (Index = 0; Index < ARRAY_SIZE (mGopResolutions); Index++) {
+ if ((mGopResolutions[Index].Width == XRes) &&
+ (mGopResolutions[Index].Height == YRes))
+ {
+ // native resolution already is in mode list
+ return;
+ }
+ }
+
+ // add to mode list
+ VgpuGop->GopMode.MaxMode++;
}
//
@@ -242,10 +317,17 @@ GopQueryMode ( return EFI_OUT_OF_RESOURCES;
}
- GopModeInfo->HorizontalResolution = mGopResolutions[ModeNumber].Width;
- GopModeInfo->VerticalResolution = mGopResolutions[ModeNumber].Height;
- GopModeInfo->PixelFormat = PixelBltOnly;
- GopModeInfo->PixelsPerScanLine = mGopResolutions[ModeNumber].Width;
+ if (ModeNumber < ARRAY_SIZE (mGopResolutions)) {
+ GopModeInfo->HorizontalResolution = mGopResolutions[ModeNumber].Width;
+ GopModeInfo->VerticalResolution = mGopResolutions[ModeNumber].Height;
+ } else {
+ VGPU_GOP *VgpuGop = VGPU_GOP_FROM_GOP (This);
+ GopModeInfo->HorizontalResolution = VgpuGop->NativeXRes;
+ GopModeInfo->VerticalResolution = VgpuGop->NativeYRes;
+ }
+
+ GopModeInfo->PixelFormat = PixelBltOnly;
+ GopModeInfo->PixelsPerScanLine = GopModeInfo->HorizontalResolution;
*SizeOfInfo = sizeof *GopModeInfo;
*Info = GopModeInfo;
diff --git a/OvmfPkg/VirtioGpuDxe/VirtioGpu.h b/OvmfPkg/VirtioGpuDxe/VirtioGpu.h index 1d78108..45da564 100644 --- a/OvmfPkg/VirtioGpuDxe/VirtioGpu.h +++ b/OvmfPkg/VirtioGpuDxe/VirtioGpu.h @@ -151,6 +151,12 @@ struct VGPU_GOP_STRUCT { // BackingStore is non-NULL.
//
VOID *BackingStoreMap;
+
+ //
+ // native display resolution
+ //
+ UINT32 NativeXRes;
+ UINT32 NativeYRes;
};
//
diff --git a/OvmfPkg/VirtioGpuDxe/VirtioGpu.inf b/OvmfPkg/VirtioGpuDxe/VirtioGpu.inf index 9e66bcd..d88c87e 100644 --- a/OvmfPkg/VirtioGpuDxe/VirtioGpu.inf +++ b/OvmfPkg/VirtioGpuDxe/VirtioGpu.inf @@ -25,6 +25,7 @@ [Packages]
MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
OvmfPkg/OvmfPkg.dec
[LibraryClasses]
@@ -43,3 +44,8 @@ gEfiGraphicsOutputProtocolGuid ## BY_START
gEfiPciIoProtocolGuid ## TO_START
gVirtioDeviceProtocolGuid ## TO_START
+
+[Pcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdVideoResolutionSource
+ gEfiMdeModulePkgTokenSpaceGuid.PcdVideoHorizontalResolution
+ gEfiMdeModulePkgTokenSpaceGuid.PcdVideoVerticalResolution
|