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diff --git a/MdeModulePkg/Include/Library/ResetSystemLib.h b/MdeModulePkg/Include/Library/ResetSystemLib.h
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+++ b/MdeModulePkg/Include/Library/ResetSystemLib.h
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+/** @file
+  System reset Library Services.  This library class defines a set of
+  methods to reset whole system.
+
+  Copyright (c) 2005 - 2007, Intel Corporation
+  All rights reserved. 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
+  http://opensource.org/licenses/bsd-license.php
+  
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __RESET_SYSTEM_LIB_H__
+#define __RESET_SYSTEM_LIB_H__
+
+/**
+  Calling this function causes a system-wide reset. This sets
+  all circuitry within the system to its initial state. This type of reset 
+  is asynchronous to system operation and operates without regard to 
+  cycle boundaries.
+
+  System reset should not return, if it returns, it means the system does 
+  not support cold reset.
+**/
+VOID
+EFIAPI
+ResetCold (
+  VOID
+  );
+
+/**
+  Calling this function causes a system-wide initialization. The processors 
+  are set to their initial state, and pending cycles are not corrupted.
+
+  System reset should not return, if it returns, it means the system does 
+  not support warm reset.
+**/
+VOID
+EFIAPI
+ResetWarm (
+  VOID
+  );
+
+/**
+  Calling this function causes the system to enter a power state equivalent 
+  to the ACPI G2/S5 or G3 states.
+  
+  System shutdown should not return, if it returns, it means the system does 
+  not support shut down reset.
+**/
+VOID
+EFIAPI
+ResetShutdown (
+  VOID
+  );
+
+/**
+  Calling this function causes the system to enter S3 and then
+  wake up immediately.
+  
+  Reset update should not return, if it returns, it means the
+  library does not the feature.
+**/
+VOID
+EFIAPI
+EnterS3WithImmediateWake (
+  VOID
+  );
+#endif