1 files changed, 13 insertions, 8 deletions
diff --git a/MdePkg/Include/Protocol/SmmReadyToLock.h b/MdePkg/Include/Protocol/SmmReadyToLock.h
index 59c92327a9..edf171923a 100644
--- a/MdePkg/Include/Protocol/SmmReadyToLock.h
+++ b/MdePkg/Include/Protocol/SmmReadyToLock.h
@@ -1,12 +1,17 @@
 /** @file
-  SMM Ready To Lock protocol as defined in the PI 1.2 specification.
-
-  This SMM protocol indicates that SMM is about to be locked.
-  This protocol is a mandatory protocol published by the SMM Foundation code when the system is 
-  preparing to lock SMM. This protocol should be installed immediately after
-  EFI_END_OF_DXE_EVENT_GROUP_GUID with no intervening modules dispatched.
-
-  Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>
+  SMM Ready To Lock protocol introduced in the PI 1.2 specification.
+
+  According to PI 1.4a specification, this SMM protocol indicates that
+  SMM resources and services that should not be used by the third party
+  code are about to be locked.
+  This protocol is a mandatory protocol published by the SMM 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 SMM counterpart of the DXE SMM Ready to Lock Protocol.
+  This protocol prorogates resource locking notification into SMM environment.
+  This protocol is installed after installation of the SMM End of DXE Protocol.
+
+  Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
   which accompanies this distribution.  The full text of the license may be found at