UefiCpuPkg/CpuMpPei: Check Function pointer in PeiStartupAllAPs ()

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18373 6f19259b-4bc3-4df7-8a09-765794883524

UefiCpuPkg/CpuMpPei/PeiMpServices.c

@@ -441,6 +441,10 @@ PeiStartupAllAPs (
     return EFI_NOT_FOUND;
   }
 
+  if (Procedure == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
   //
   // Check whether caller processor is BSP
   //