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1. Add the missing function headers. 

2.  Update local variable name to match coding style.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10355 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lgao4 2010-04-09 09:15:50 +00:00
parent a58cc068b6
commit e9ba23c77d
1 changed files with 13 additions and 9 deletions
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22
EdkCompatibilityPkg/Compatibility/SmmBaseHelper/SmmBaseHelper.c
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@ -106,6 +106,10 @@ CPU_SAVE_STATE_CONVERSION mCpuSaveStateConvTable[] = {
{EFI_SMM_SAVE_STATE_REGISTER_CR3 , CPU_SAVE_STATE_GET_OFFSET(CR3)}
};
/**
Page fault handler.
**/
VOID
PageFaultHandlerHook (
VOID
@ -391,9 +395,9 @@ InitCpuStatePageTable (
{
UINTN Index;
UINT64 *PageTable;
UINT64 *PDPTE;
UINT64 *Pdpte;
UINT64 HookAddress;
UINT64 PDE;
UINT64 Pde;
UINT64 Address;
//
@ -409,21 +413,21 @@ InitCpuStatePageTable (
PageTable = (UINT64 *)(UINTN)(PageTable[BitFieldRead64 (HookAddress, 39, 47)] & mPhyMask);
PageTable = (UINT64 *)(UINTN)(PageTable[BitFieldRead64 (HookAddress, 30, 38)] & mPhyMask);
PDPTE = (UINT64 *)(UINTN)PageTable;
PDE = PDPTE[BitFieldRead64 (HookAddress, 21, 29)];
ASSERT ((PDE & BIT0) != 0); // Present and 2M Page
Pdpte = (UINT64 *)(UINTN)PageTable;
Pde = Pdpte[BitFieldRead64 (HookAddress, 21, 29)];
ASSERT ((Pde & BIT0) != 0); // Present and 2M Page
if ((PDE & BIT7) == 0) { // 4KB Page Directory
PageTable = (UINT64 *)(UINTN)(PDE & mPhyMask);
if ((Pde & BIT7) == 0) { // 4KB Page Directory
PageTable = (UINT64 *)(UINTN)(Pde & mPhyMask);
} else {
ASSERT ((PDE & mPhyMask) == (HookAddress & ~(SIZE_2MB-1))); // 2MB Page Point to HookAddress
ASSERT ((Pde & mPhyMask) == (HookAddress & ~(SIZE_2MB-1))); // 2MB Page Point to HookAddress
PageTable = AllocatePages (1);
Address = HookAddress & ~(SIZE_2MB-1);
for (Index = 0; Index < 512; Index++) {
PageTable[Index] = Address | BIT0 | BIT1; // Present and RW
Address += SIZE_4KB;
}
PDPTE[BitFieldRead64 (HookAddress, 21, 29)] = (UINT64)(UINTN)PageTable | BIT0 | BIT1; // Present and RW
Pdpte[BitFieldRead64 (HookAddress, 21, 29)] = (UINT64)(UINTN)PageTable | BIT0 | BIT1; // Present and RW
}
return PageTable;
}