1 files changed, 26 insertions, 0 deletions
diff --git a/MdePkg/Include/Protocol/MmReadyToLock.h b/MdePkg/Include/Protocol/MmReadyToLock.h
new file mode 100644
index 000000000000..092fcfdcc0c1
--- /dev/null
+++ b/MdePkg/Include/Protocol/MmReadyToLock.h
@@ -0,0 +1,26 @@
+/** @file
+  MM Ready To Lock protocol introduced in the PI 1.5 specification.
+
+  This protocol is a mandatory protocol published by the MM Foundation
+  code when the system is preparing to lock certain resources and interfaces
+  in anticipation of the invocation of 3rd party extensible modules.
+  This protocol is an MM counterpart of the DXE MM Ready to Lock Protocol.
+  This protocol prorogates resource locking notification into MM environment.
+  This protocol is installed after installation of the MM End of DXE Protocol.
+
+  Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _MM_READY_TO_LOCK_H_
+#define _MM_READY_TO_LOCK_H_
+
+#define EFI_MM_READY_TO_LOCK_PROTOCOL_GUID \
+  { \
+    0x47b7fa8c, 0xf4bd, 0x4af6, { 0x82, 0x00, 0x33, 0x30, 0x86, 0xf0, 0xd2, 0xc8 } \
+  }
+
+extern EFI_GUID gEfiMmReadyToLockProtocolGuid;
+
+#endif