- Status = gBS->CreateEvent (\r
- EFI_EVENT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,\r
- EFI_TPL_NOTIFY,\r
- RuntimeLibVirtualNotifyEvent,\r
- NULL,\r
- &mEfiVirtualNotifyEvent\r
- );\r
-\r
- ASSERT_EFI_ERROR (Status);\r
+ if (_gDriverSetVirtualAddressMapEvent[0] != NULL) {\r
+ ASSERT (gBS != NULL);\r
+ Status = gBS->CreateEvent (\r
+ EFI_EVENT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,\r
+ EFI_TPL_NOTIFY,\r
+ RuntimeLibVirtualNotifyEvent,\r
+ NULL,\r
+ &mEfiVirtualNotifyEvent\r
+ );\r
+\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r