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1, remove MigrateIdt interface, 2, remove unused library class

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5793 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
2008-09-03 08:04:48 +00:00
parent 22e6fe86ba
commit 5dd39dc655
3 changed files with 7 additions and 66 deletions
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41
MdePkg/Library/PeiServicesTablePointerLibIdt/PeiServicesTablePointer.c
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@@ -12,7 +12,11 @@
**/
#include "InternalPeiServicesTablePointer.h"
#include <PiPei.h>
#include <Library/BaseLib.h>
#include <Library/PeiServicesTablePointerLib.h>
#include <Library/DebugLib.h>
/**
@@ -37,7 +41,7 @@ GetPeiServicesTablePointer (
IA32_DESCRIPTOR Idtr;
AsmReadIdtr (&Idtr);
PeiServices = (EFI_PEI_SERVICES **) (*(UINTN*)(Idtr.Base - 4));
PeiServices = (EFI_PEI_SERVICES **) (*(UINTN*)(Idtr.Base - sizeof (UINTN)));
ASSERT (PeiServices != NULL);
return PeiServices;
}
@@ -64,38 +68,7 @@ SetPeiServicesTablePointer (
IA32_DESCRIPTOR Idtr;
AsmReadIdtr (&Idtr);
(*(UINTN*)(Idtr.Base - 4)) = (UINTN)PeiServicesTablePointer;
(*(UINTN*)(Idtr.Base - sizeof (UINTN))) = (UINTN)PeiServicesTablePointer;
}
/**
After memory initialization in PEI phase, the IDT table in temporary memory should
be migrated to memory, and the address of PeiServicesPointer also need to be updated
immediately preceding the new IDT table.
@param PeiServices The address of PeiServices pointer.
**/
VOID
EFIAPI
MigrateIdtTable (
IN EFI_PEI_SERVICES **PeiServices
)
{
UINTN Size;
VOID *NewBase;
EFI_STATUS Status;
IA32_DESCRIPTOR Idtr;
AsmReadIdtr (&Idtr);
Size = sizeof(UINTN) + (Idtr.Limit + 1);
Status = PeiServicesAllocatePool (Size, &NewBase);
ASSERT_EFI_ERROR (Status);
CopyMem ((VOID*)((UINTN)NewBase + sizeof(UINTN)), (VOID*)Idtr.Base, (Idtr.Limit + 1));
Idtr.Base = (UINTN)NewBase + sizeof(UINTN);
AsmWriteIdtr (&Idtr);
SetPeiServicesTablePointer(PeiServices);
}