sravan/system76-edk2
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The calculating action for CAR usage should be put before calling temporary ram support PPI, because the CAR is unvaiable after switch stack from temporary memory to permenent memory.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4795 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
2008-03-06 08:41:22 +00:00
parent ff33b87dd8
commit a7715e7327
2 changed files with 24 additions and 29 deletions
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25
MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c
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@@ -23,6 +23,8 @@ Revision History
#include <PeiMain.h>
#define INIT_CAR_VALUE 0x5AA55AA5
typedef struct {
EFI_STATUS_CODE_DATA DataHeader;
EFI_HANDLE Handle;
@@ -437,7 +439,28 @@ Returns:
}
if (Private->SwitchStackSignal) {
//
// Before switch stack from CAR to permenent memory, caculate the heap and stack
// usage in temporary memory for debuging.
//
DEBUG_CODE_BEGIN ();
UINTN *StackPointer;
for (StackPointer = (UINTN*)SecCoreData->StackBase;
(StackPointer < (UINTN*)((UINTN)SecCoreData->StackBase + SecCoreData->StackSize)) \
&& (*StackPointer == INIT_CAR_VALUE);
StackPointer ++);
DEBUG ((EFI_D_INFO, "Total Cache as RAM: %d bytes.\n", SecCoreData->TemporaryRamSize));
DEBUG ((EFI_D_INFO, " CAR stack ever used: %d bytes.\n",
(SecCoreData->StackSize - ((UINTN) StackPointer - (UINTN)SecCoreData->StackBase))
));
DEBUG ((EFI_D_INFO, " CAR heap used: %d bytes.\n",
((UINTN) Private->HobList.HandoffInformationTable->EfiFreeMemoryBottom -
(UINTN) Private->HobList.Raw)
));
DEBUG_CODE_END ();
//
// Reserve the size of new stack at bottom of physical memory
//