Revision: 14944
http://sourceforge.net/p/edk2/code/14944
Author: jljusten
Date: 2013-12-08 01:36:07 +0000 (Sun, 08 Dec 2013)
Log Message:
-----------
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 <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Modified Paths:
--------------
trunk/edk2/OvmfPkg/PlatformPei/MemDetect.c
trunk/edk2/OvmfPkg/PlatformPei/Platform.h
Modified: trunk/edk2/OvmfPkg/PlatformPei/MemDetect.c
===================================================================
--- trunk/edk2/OvmfPkg/PlatformPei/MemDetect.c 2013-12-08 01:36:00 UTC (rev
14943)
+++ trunk/edk2/OvmfPkg/PlatformPei/MemDetect.c 2013-12-08 01:36:07 UTC (rev
14944)
@@ -83,11 +83,45 @@
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
Modified: trunk/edk2/OvmfPkg/PlatformPei/Platform.h
===================================================================
--- trunk/edk2/OvmfPkg/PlatformPei/Platform.h 2013-12-08 01:36:00 UTC (rev
14943)
+++ trunk/edk2/OvmfPkg/PlatformPei/Platform.h 2013-12-08 01:36:07 UTC (rev
14944)
@@ -57,6 +57,11 @@
EFI_PHYSICAL_ADDRESS MemoryLimit
);
+EFI_STATUS
+PublishPeiMemory (
+ VOID
+ );
+
EFI_PHYSICAL_ADDRESS
MemDetect (
VOID
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