diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuCommon.h b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuCommon.h
index 7f11429e50..1769af2fa6 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuCommon.h
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuCommon.h
@@ -29,6 +29,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Guid/SmmBaseHob.h>
 #include <Guid/MpInformation2.h>
 #include <Guid/MmProfileData.h>
+#include <Guid/MmAcpiS3Enable.h>
 
 #include <Library/BaseLib.h>
 #include <Library/IoLib.h>
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuStandaloneMm.c b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuStandaloneMm.c
index 3471d40cb2..35657a3b57 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuStandaloneMm.c
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuStandaloneMm.c
@@ -8,3 +8,31 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 **/
 
 #include "PiSmmCpuCommon.h"
+
+/**
+  Get ACPI S3 enable flag.
+
+**/
+VOID
+GetAcpiS3EnableFlag (
+  VOID
+  )
+{
+  EFI_HOB_GUID_TYPE  *GuidHob;
+  MM_ACPI_S3_ENABLE  *MmAcpiS3EnableHob;
+
+  MmAcpiS3EnableHob = NULL;
+
+  //
+  // Get MM_ACPI_S3_ENABLE for Standalone MM init.
+  //
+  GuidHob = GetFirstGuidHob (&gMmAcpiS3EnableHobGuid);
+  ASSERT (GuidHob != NULL);
+  if (GuidHob != NULL) {
+    MmAcpiS3EnableHob = GET_GUID_HOB_DATA (GuidHob);
+  }
+
+  if (MmAcpiS3EnableHob != NULL) {
+    mAcpiS3Enable = MmAcpiS3EnableHob->AcpiS3Enable;
+  }
+}