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Fix BiosVideo thunk bug about invalid legacy region area. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8099 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2 2009-04-16 04:46:18 +00:00
parent 0cb4d53d77
commit 6c8e40caa9
2 changed files with 7 additions and 8 deletions
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11
DuetPkg/BiosVideoThunkDxe/LegacyBiosThunk.c
View File

@ -30,26 +30,25 @@ InitializeBiosIntCaller (
UINT32 RealModeBufferSize;
UINT32 ExtraStackSize;
EFI_PHYSICAL_ADDRESS LegacyRegionBase;
UINT32 LegacyRegionSize;
//
// Get LegacyRegion
//
AsmGetThunk16Properties (&RealModeBufferSize, &ExtraStackSize);
LegacyRegionSize = (((RealModeBufferSize + ExtraStackSize) / EFI_PAGE_SIZE) + 1) * EFI_PAGE_SIZE;
LegacyRegionBase = 0x100000;
Status = gBS->AllocatePages (
AllocateMaxAddress,
EfiACPIMemoryNVS,
EFI_SIZE_TO_PAGES(RealModeBufferSize + ExtraStackSize + 200),
EFI_SIZE_TO_PAGES(LegacyRegionSize),
&LegacyRegionBase
);
ASSERT_EFI_ERROR (Status);
ThunkContext->RealModeBuffer = (VOID*)(UINTN)LegacyRegionBase;
ThunkContext->RealModeBufferSize = EFI_PAGES_TO_SIZE (RealModeBufferSize);
ThunkContext->ThunkAttributes = 3;
ThunkContext->RealModeBufferSize = LegacyRegionSize;
ThunkContext->ThunkAttributes = THUNK_ATTRIBUTE_BIG_REAL_MODE|THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15;
AsmPrepareThunk16(ThunkContext);
}
/**

4
DuetPkg/DuetPkg.fdf
View File

@ -108,14 +108,14 @@ INF IntelFrameworkModulePkg/Universal/Console/VgaClassDxe/VgaClassDxe.inf
# ISA Support
INF PcAtChipsetPkg/IsaAcpiDxe/IsaAcpi.inf
INF IntelFrameworkModulePkg/Bus/Isa/IsaBusDxe/IsaBusDxe.inf
#INF IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/IsaSerialDxe.inf
INF IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/IsaSerialDxe.inf
INF IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2keyboardDxe.inf
INF IntelFrameworkModulePkg/Bus/Isa/IsaFloppyDxe/IsaFloppyDxe.inf
INF MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIoDxe.inf
INF MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf
INF MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe.inf
#INF DuetPkg/BiosVideoThunkDxe/BiosVideo.inf
INF DuetPkg/BiosVideoThunkDxe/BiosVideo.inf
# Binary INF file to support toggle among different CPU architectures.
INF FatBinPkg/EnhancedFatDxe/Fat.inf