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Fix detection of framebuffer BAR

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This commit is contained in:
Jeremy Soller
2020-08-24 08:29:56 -06:00
committed by Tim Crawford
parent 2dc1e51593
commit 8c80e407f5
1 changed files with 7 additions and 22 deletions
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27
UefiPayloadPkg/GraphicsOutputDxe/GraphicsOutput.c
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@@ -320,14 +320,14 @@ GraphicsOutputDriverBindingStart (
VOID *HobStart;
EFI_PEI_GRAPHICS_INFO_HOB *GraphicsInfo;
EFI_PEI_GRAPHICS_DEVICE_INFO_HOB *DeviceInfo;
EFI_PHYSICAL_ADDRESS FrameBufferBase;
FrameBufferBase = 0;
HobStart = GetFirstGuidHob (&gEfiGraphicsInfoHobGuid);
ASSERT ((HobStart != NULL) && (GET_GUID_HOB_DATA_SIZE (HobStart) == sizeof (EFI_PEI_GRAPHICS_INFO_HOB)));
GraphicsInfo = (EFI_PEI_GRAPHICS_INFO_HOB *)(GET_GUID_HOB_DATA (HobStart));
DEBUG ((DEBUG_INFO, "[%a]: GraphicsInfo HOB: FrameBufferBase = %lx, FrameBufferSize = %lx\n",
gEfiCallerBaseName, GraphicsInfo->FrameBufferBase, GraphicsInfo->FrameBufferSize));
HobStart = GetFirstGuidHob (&gEfiGraphicsDeviceInfoHobGuid);
if ((HobStart == NULL) || (GET_GUID_HOB_DATA_SIZE (HobStart) < sizeof (*DeviceInfo))) {
//
@@ -424,25 +424,10 @@ GraphicsOutputDriverBindingStart (
Resources->AddrRangeMin,
Resources->AddrLen
));
if ((Resources->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) &&
(Resources->Len == (UINT16)(sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) - 3)) &&
(Resources->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) &&
(Resources->AddrLen >= GraphicsInfo->FrameBufferSize)
)
{
if (FrameBufferBase == 0) {
FrameBufferBase = Resources->AddrRangeMin;
}
if (DeviceInfo->BarIndex == MAX_UINT8) {
if (Resources->AddrRangeMin == GraphicsInfo->FrameBufferBase) {
FrameBufferBase = Resources->AddrRangeMin;
if (Resources->AddrRangeMin <= GraphicsInfo->FrameBufferBase &&
(Resources->AddrRangeMin + Resources->AddrLen) >= (GraphicsInfo->FrameBufferBase + GraphicsInfo->FrameBufferSize)) {
break;
}
} else {
break;
}
}
}
}
@@ -468,7 +453,7 @@ GraphicsOutputDriverBindingStart (
goto CloseProtocols;
}
Private->GraphicsOutputMode.FrameBufferBase = FrameBufferBase;
Private->GraphicsOutputMode.FrameBufferBase = GraphicsInfo->FrameBufferBase;
Private->GraphicsOutputMode.FrameBufferSize = GraphicsInfo->FrameBufferSize;
Private->GraphicsOutputMode.Info = &GraphicsInfo->GraphicsMode;