Remove checking SMM Rev ID in AMD Save State lib when reading Save
State Register EFI_MM_SAVE_STATE_REGISTER_IO.
For AMD, it is not necessary to check SmmRevId when reading Save State
Register EFI_MM_SAVE_STATE_REGISTER_IO.
Cc: Abdul Lateef Attar <AbdulLateef.Attar@amd.com>
Cc: Abner Chang <abner.chang@amd.com>
Signed-off-by: Jacque Lin <hsienchieh.lin@amd.com>
---
UefiCpuPkg/Library/MmSaveStateLib/AmdMmSaveState.c | 13 -------------
1 file changed, 13 deletions(-)
diff --git a/UefiCpuPkg/Library/MmSaveStateLib/AmdMmSaveState.c b/UefiCpuPkg/Library/MmSaveStateLib/AmdMmSaveState.c
index 3315a6cc44..c4bf6ad4bb 100644
--- a/UefiCpuPkg/Library/MmSaveStateLib/AmdMmSaveState.c
+++ b/UefiCpuPkg/Library/MmSaveStateLib/AmdMmSaveState.c
@@ -102,7 +102,6 @@ MmSaveStateReadRegister (
OUT VOID *Buffer
)
{
- UINT32 SmmRevId;
EFI_MM_SAVE_STATE_IO_INFO *IoInfo;
AMD_SMRAM_SAVE_STATE_MAP *CpuSaveState;
UINT8 DataWidth;
@@ -124,18 +123,6 @@ MmSaveStateReadRegister (
// Check for special EFI_MM_SAVE_STATE_REGISTER_IO
if (Register == EFI_MM_SAVE_STATE_REGISTER_IO) {
- //
- // Get SMM Revision ID
- //
- MmSaveStateReadRegisterByIndex (CpuIndex, AMD_MM_SAVE_STATE_REGISTER_SMMREVID_INDEX, sizeof (SmmRevId), &SmmRevId);
-
- //
- // See if the CPU supports the IOMisc register in the save state
- //
- if (SmmRevId < AMD_SMM_MIN_REV_ID_X64) {
- return EFI_NOT_FOUND;
- }
-
// Check if IO Restart Dword [IO Trap] is valid or not using bit 1.
if (!(CpuSaveState->x64.IO_DWord & 0x02u)) {
return EFI_NOT_FOUND;
--
2.36.1.windows.1
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