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UefiPkg/PiSmmCpuDxeSmm: Set SmmProfile Variable only for DXE SMM 

Some platforms plan to move the Standalone MM CPU driver into the FSP.
However, there is no variable service support in FSP. Therefore, the
SetVariable logic for the Standalone MM CPU will be removed. With this
change, users can dump the SmmProfile data from the Memory Allocation
HOB: gMmProfileDataHobGuid.
This change does not impact the DXE SMM, which will still retrieve the
SmmProfile data from the variable service.

Signed-off-by: Yanxin Zhao <yanxin.zhao@intel.com>
This commit is contained in:
Zhao,Yanxin 2024-12-18 10:45:40 +08:00 committed by mergify[bot]
parent 4af5849556
commit e8ce6c5189
1 changed files with 9 additions and 6 deletions
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15
UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c
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@ -749,6 +749,7 @@ InitSmmProfileInternal (
UINTN MsrDsAreaSizePerCpu;
UINT64 SmmProfileSize;
Status = EFI_SUCCESS;
mPFEntryCount = (UINTN *)AllocateZeroPool (sizeof (UINTN) * mMaxNumberOfCpus);
ASSERT (mPFEntryCount != NULL);
mLastPFEntryValue = (UINT64 (*)[MAX_PF_ENTRY_COUNT])AllocateZeroPool (
@ -840,12 +841,14 @@ InitSmmProfileInternal (
//
// Start SMM profile when SmmReadyToLock protocol is installed.
//
Status = gMmst->MmRegisterProtocolNotify (
&gEfiSmmReadyToLockProtocolGuid,
InitSmmProfileCallBack,
&Registration
);
ASSERT_EFI_ERROR (Status);
if (!mIsStandaloneMm) {
Status = gMmst->MmRegisterProtocolNotify (
&gEfiSmmReadyToLockProtocolGuid,
InitSmmProfileCallBack,
&Registration
);
ASSERT_EFI_ERROR (Status);
}
return;
}