add assertion to ensure HwErr type variable range is less than or equal to VariableStore range.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9199 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariable.c

@@ -1313,6 +1313,14 @@ InitializeVariableStore (
 {
   VARIABLE_STORE_HEADER *VariableStore;
 
+  //
+  // Note that in EdkII variable driver implementation, Hardware Error Record type variable
+  // is stored with common variable in the same NV region. So the platform integrator should
+  // ensure that the value of PcdHwErrStorageSize is less than or equal to the value of 
+  // PcdFlashNvStorageVariableSize.
+  //
+  ASSERT (FixedPcdGet32(PcdHwErrStorageSize) <= FixedPcdGet32(PcdFlashNvStorageVariableSize));
+
   //
   // Allocate memory for volatile variable store
   //