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/MdeModulePkg.dec

@@ -85,6 +85,10 @@
   ##  @libraryclass  Provide platform specific hooks.
   #
   PlatformHookLib|Include/Library/PlatformHookLib.h
+
+  ##  @libraryclass  Provide platform specific hooks for SMM core.
+  #
+  SmmCorePlatformHookLib|Include/Library/SmmCorePlatformHookLib.h
   
 [Guids]
   ## MdeModule package token space guid