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OvmfPkg: introduce PublishPeiMemory 

MemDetect actully does too many things, the underlying platform might
want to have more control over memory layout.

Extract the functionality of publishing PEI memory to a dedicated
function.

Also fixed wrong comment while I was there.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14944 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Wei Liu 2013-12-08 01:36:07 +00:00 committed by jljusten
parent c7ea55b92b
commit 36658fff45
2 changed files with 40 additions and 1 deletions
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36
OvmfPkg/PlatformPei/MemDetect.c
View File

@ -83,11 +83,45 @@ GetSystemMemorySizeAbove4gb (
return LShiftU64 (Size, 16);
}
/**
Publish PEI core memory
@return EFI_SUCCESS The PEIM initialized successfully.
**/
EFI_STATUS
PublishPeiMemory (
VOID
)
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS MemoryBase;
UINT64 MemorySize;
UINT64 LowerMemorySize;
LowerMemorySize = GetSystemMemorySizeBelow4gb ();
MemoryBase = PcdGet32 (PcdOvmfMemFvBase) + PcdGet32 (PcdOvmfMemFvSize);
MemorySize = LowerMemorySize - MemoryBase;
if (MemorySize > SIZE_64MB) {
MemoryBase = LowerMemorySize - SIZE_64MB;
MemorySize = SIZE_64MB;
}
//
// Publish this memory to the PEI Core
//
Status = PublishSystemMemory(MemoryBase, MemorySize);
ASSERT_EFI_ERROR (Status);
return Status;
}
/**
Peform Memory Detection
@return EFI_SUCCESS The PEIM initialized successfully.
@return Top of memory
**/
EFI_PHYSICAL_ADDRESS

5
OvmfPkg/PlatformPei/Platform.h
View File

@ -57,6 +57,11 @@ AddUntestedMemoryRangeHob (
EFI_PHYSICAL_ADDRESS MemoryLimit
);
EFI_STATUS
PublishPeiMemory (
VOID
);
EFI_PHYSICAL_ADDRESS
MemDetect (
VOID