///\r
/// PCD database lock.\r
///\r
-EFI_LOCK mPcdDatabaseLock = EFI_INITIALIZE_LOCK_VARIABLE(TPL_CALLBACK);\r
+EFI_LOCK mPcdDatabaseLock = EFI_INITIALIZE_LOCK_VARIABLE(TPL_NOTIFY);\r
\r
///\r
/// PCD_PROTOCOL the EDKII native implementation which support dynamic \r