diff --git a/UefiCpuPkg/Include/Library/SmmCpuPlatformHookLib.h b/UefiCpuPkg/Include/Library/SmmCpuPlatformHookLib.h
index 149a694891..5bc9ba2b86 100644
--- a/UefiCpuPkg/Include/Library/SmmCpuPlatformHookLib.h
+++ b/UefiCpuPkg/Include/Library/SmmCpuPlatformHookLib.h
@@ -115,4 +115,24 @@ SmmCpuPlatformHookBeforeMmiHandler (
   VOID
   );
 
+/**
+  This function determines whether the first CPU Synchronization should be executed unconditionally
+  when a SMI occurs.
+
+  If the function returns true, it indicates that there is no need to check the system configuration
+  and status, and the first CPU Synchronization should be executed unconditionally.
+
+  If the function returns false, it indicates that the first CPU Synchronization is not executed
+  unconditionally, and the decision to synchronize should be based on the system configuration and status.
+
+  @retval TRUE   The first CPU Synchronization is executed unconditionally.
+  @retval FALSE  The first CPU Synchronization is not executed unconditionally.
+
+**/
+BOOLEAN
+EFIAPI
+IsCpuSyncAlwaysNeeded (
+  VOID
+  );
+
 #endif
diff --git a/UefiCpuPkg/Library/SmmCpuPlatformHookLibNull/SmmCpuPlatformHookLibNull.c b/UefiCpuPkg/Library/SmmCpuPlatformHookLibNull/SmmCpuPlatformHookLibNull.c
index b03a72d177..beca8aa6b2 100644
--- a/UefiCpuPkg/Library/SmmCpuPlatformHookLibNull/SmmCpuPlatformHookLibNull.c
+++ b/UefiCpuPkg/Library/SmmCpuPlatformHookLibNull/SmmCpuPlatformHookLibNull.c
@@ -118,3 +118,26 @@ SmmCpuPlatformHookBeforeMmiHandler (
 {
   return EFI_UNSUPPORTED;
 }
+
+/**
+  This function determines whether the first CPU Synchronization should be executed unconditionally
+  when a SMI occurs.
+
+  If the function returns true, it indicates that there is no need to check the system configuration
+  and status, and the first CPU Synchronization should be executed unconditionally.
+
+  If the function returns false, it indicates that the first CPU Synchronization is not executed
+  unconditionally, and the decision to synchronize should be based on the system configuration and status.
+
+  @retval TRUE   The first CPU Synchronization is executed unconditionally.
+  @retval FALSE  The first CPU Synchronization is not executed unconditionally.
+
+**/
+BOOLEAN
+EFIAPI
+IsCpuSyncAlwaysNeeded (
+  VOID
+  )
+{
+  return FALSE;
+}