1. Add two performance measurement points for SMM performance measurement;

2. Introduce SmmCorePlatformHookLib library class defining two platform hook points. Update PI Smm Core to call the hook points before and after invoking registered SMI handlers. A NULL instance of this library class is implemented.

Note that after this check in, DSC files consuming the PiSmmCore.inf need to be updated to add a library instance for SmmCorePlatformHookLib library class.


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12140 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Core/PiSmmCore/PiSmmCore.c

@@ -1,7 +1,7 @@
 /** @file
   SMM Core Main Entry Point
 
-  Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2009 - 2011, 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        
@@ -246,11 +246,18 @@ SmmEntryPoint (
   EFI_STATUS                  Status;
   EFI_SMM_COMMUNICATE_HEADER  *CommunicateHeader;
 
+  PERF_START (NULL, "SMM", NULL, 0) ;
+
   //
   // Update SMST using the context
   //
   CopyMem (&gSmmCoreSmst.SmmStartupThisAp, SmmEntryContext, sizeof (EFI_SMM_ENTRY_CONTEXT));
 
+  //
+  // Call platform hook before Smm Dispatch
+  //
+  PlatformHookBeforeSmmDispatch ();
+
   //
   // If a legacy boot has occured, then make sure gSmmCorePrivate is not accessed
   //
@@ -297,11 +304,18 @@ SmmEntryPoint (
     //
     SmiManage (NULL, NULL, NULL, NULL);
   }
+  
+  //
+  // Call platform hook after Smm Dispatch
+  //
+  PlatformHookAfterSmmDispatch ();
 
   //
   // Clear the InSmm flag as we are going to leave SMM
   //
   gSmmCorePrivate->InSmm = FALSE;
+
+  PERF_END (NULL, "SMM", NULL, 0) ;
 }
 
 /**

MdeModulePkg/Core/PiSmmCore/PiSmmCore.h

@@ -2,7 +2,7 @@
   The internal header file includes the common header files, defines
   internal structure and functions used by SmmCore module.
 
-  Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2009 - 2011, 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        
@@ -43,6 +43,8 @@
 #include <Library/UefiLib.h>                   
 #include <Library/UefiBootServicesTableLib.h>
 #include <Library/PcdLib.h>
+#include <Library/SmmCorePlatformHookLib.h>
+#include <Library/PerformanceLib.h>
 
 #include "PiSmmCorePrivateData.h"
 

MdeModulePkg/Core/PiSmmCore/PiSmmCore.inf

@@ -1,7 +1,7 @@
 ## @file
 # This module provide an SMM CIS compliant implementation of SMM Core.
 #
-# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2009 - 2011, 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
@@ -54,7 +54,9 @@
   UefiBootServicesTableLib    
   MemoryAllocationLib
   PcdLib
-  
+  SmmCorePlatformHookLib
+  PerformanceLib
+
 [Protocols]
   gEfiDxeSmmReadyToLockProtocolGuid             # PROTOCOL ALWAYS_CONSUMED
   gEfiSmmReadyToLockProtocolGuid                # PROTOCOL ALWAYS_PRODUCED