ZwLoadKeyEx

NTSTATUS __stdcall ZwLoadKeyEx(
        OBJECT_ATTRIBUTES *TargetKey,
        OBJECT_ATTRIBUTES *SourceFile,
        UINT64 Flags,
        PVOID TrustClassKey,
        PVOID Event,
        UINT64 DesiredAccess,
        PVOID *RootHandle,
        IO_STATUS_BLOCK *IoStatus){
  NTSTATUS result; 
  _disable();
  __readeflags();
  KiServiceInternal();
  return result;
}

Referenced by:

PiDrvDbLoadHive