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UefiCpuPkg: Use GenSmmPageTable() to create Smm S3 page table

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Use GenSmmPageTable() to create both IA32 and X64 Smm S3
page table.

Signed-off-by: Dun Tan <dun.tan@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Dun Tan
2023-05-15 16:10:43 +08:00
committed by Ray Ni
parent 701b5797b2
commit b4dde1ae6a
3 changed files with 6 additions and 148 deletions
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22
UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmmProfileArch.c
View File

@@ -35,26 +35,14 @@ InitSmmS3Cr3 (
VOID
)
{
EFI_PHYSICAL_ADDRESS Pages;
UINT64 *PTEntry;
//
// Generate PAE page table for the first 4GB memory space
//
Pages = Gen4GPageTable (FALSE);
//
// Fill Page-Table-Level4 (PML4) entry
//
PTEntry = (UINT64 *)AllocatePageTableMemory (1);
ASSERT (PTEntry != NULL);
*PTEntry = Pages | mAddressEncMask | PAGE_ATTRIBUTE_BITS;
ZeroMem (PTEntry + 1, EFI_PAGE_SIZE - sizeof (*PTEntry));
//
// Generate level4 page table for the first 4GB memory space
// Return the address of PML4 (to set CR3)
//
mSmmS3ResumeState->SmmS3Cr3 = (UINT32)(UINTN)PTEntry;
//
// The SmmS3Cr3 is only used by S3Resume PEIM to switch CPU from 32bit to 64bit
//
mSmmS3ResumeState->SmmS3Cr3 = (UINT32)GenSmmPageTable (Paging4Level, 32);
return;
}