From b17f22f50b67c4c845ac3b70f5a90f82cf688795 Mon Sep 17 00:00:00 2001
From: li-elvin <li-elvin@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 21 Oct 2011 08:45:07 +0000
Subject: [PATCH] CSM should firstly set timer to enable state at first, then
 RestoreTpl is called.

Signed-off-by: li-elvin
Reviewed-by: rsun3

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12555 6f19259b-4bc3-4df7-8a09-765794883524
---
 IntelFrameworkModulePkg/Csm/LegacyBiosDxe/Thunk.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/Thunk.c b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/Thunk.c
index 16c873d8f5..3d9a8b9649 100644
--- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/Thunk.c
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/Thunk.c
@@ -315,14 +315,14 @@ InternalLegacyBiosFarCall (
   mThunkContext.RealModeState = NULL;
 
   //
-  // End critical section
+  // Enable and restore rate of DXE Timer
   //
-  gBS->RestoreTPL (OriginalTpl);
+  Private->Timer->SetTimerPeriod (Private->Timer, TimerPeriod);
 
   //
-  // Enable and restore rate of DXE Timer
+  // End critical section
   //
-  Private->Timer->SetTimerPeriod (Private->Timer, TimerPeriod);
+  gBS->RestoreTPL (OriginalTpl);
   
   //
   // Restore interrupt of debug timer
-- 
2.39.2