sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use PCD for PMM size and EndOpromShadowAddress to remove hard code value in CSM module.

Browse Source 
Signed-off-by: li-elvin
Reviewed-by: jyao1

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12519 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
li-elvin
2011-10-10 01:43:13 +00:00
parent c4042207d6
commit befbc4f3fb
5 changed files with 27 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c
View File

@@ -29,11 +29,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
//
LEGACY_BIOS_INSTANCE mPrivateData;
//
// The end of OPROM shadow address
//
UINTN mEndOpromShadowAddress = 0;
/**
Do an AllocatePages () of type AllocateMaxAddress for EfiBootServicesCode
memory.
@@ -387,23 +382,6 @@ ShadowAndStartLegacy16 (
//
Table->EfiSystemTable = (UINT32) (UINTN) gST;
//
// Get the end of OPROM shadow address
//
Status = Private->LegacyBiosPlatform->GetPlatformInfo (
Private->LegacyBiosPlatform,
EfiGetPlatformEndOpromShadowAddr,
NULL,
NULL,
&mEndOpromShadowAddress,
NULL,
0,
0
);
if (EFI_ERROR (Status)) {
mEndOpromShadowAddress = 0xDFFFF;
}
//
// IPF CSM integration -Bug
//
@@ -905,17 +883,19 @@ LegacyBiosInstall (
}
//
// Allocate a 64k area (16 4k pages) for 16-bit code for scratch pad and zero it out
// Allocate low PMM memory and zero it out
//
MemorySize = PcdGet32 (PcdLowPmmMemorySize);
ASSERT ((MemorySize & 0xFFF) == 0);
Status = AllocateLegacyMemory (
AllocateMaxAddress,
CONVENTIONAL_MEMORY_TOP,
16,
EFI_SIZE_TO_PAGES (MemorySize),
&MemoryAddressUnder1MB
);
ASSERT_EFI_ERROR (Status);
ZeroMem ((VOID *) ((UINTN) MemoryAddressUnder1MB), 0x10000);
ZeroMem ((VOID *) ((UINTN) MemoryAddressUnder1MB), MemorySize);
//
// Allocate space for thunker and Init Thunker
@@ -940,20 +920,22 @@ LegacyBiosInstall (
//
EfiToLegacy16InitTable->BiosLessThan1MB = (UINT32) MemoryAddressUnder1MB;
EfiToLegacy16InitTable->LowPmmMemory = (UINT32) MemoryAddressUnder1MB;
EfiToLegacy16InitTable->LowPmmMemorySizeInBytes = 0x10000;
EfiToLegacy16InitTable->LowPmmMemorySizeInBytes = MemorySize;
//
// Allocate 4 MB of PMM Memory under 16 MB
// Allocate high PMM Memory under 16 MB
//
MemorySize = PcdGet32 (PcdHighPmmMemorySize);
ASSERT ((MemorySize & 0xFFF) == 0);
Status = AllocateLegacyMemory (
AllocateMaxAddress,
0x1000000,
0x400,
EFI_SIZE_TO_PAGES (MemorySize),
&MemoryAddress
);
if (!EFI_ERROR (Status)) {
EfiToLegacy16InitTable->HiPmmMemory = (UINT32) (EFI_PHYSICAL_ADDRESS) (UINTN) MemoryAddress;
EfiToLegacy16InitTable->HiPmmMemorySizeInBytes = PMM_MEMORY_SIZE;
EfiToLegacy16InitTable->HiPmmMemorySizeInBytes = MemorySize;
}
//