Disable interrupt when changing IDTR register.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10046 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-23 07:32:20 +00:00
parent f18f2882e9
commit 28b5f7c062
5 changed files with 20 additions and 5 deletions
--- a/MdePkg/Library/BaseLib/X64/WriteIdtr.asm
+++ b/MdePkg/Library/BaseLib/X64/WriteIdtr.asm
@@ -1,6 +1,6 @@
 ;------------------------------------------------------------------------------
 ;
-; Copyright (c) 2006, Intel Corporation
+; Copyright (c) 2006 - 2010, 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
@@ -31,7 +31,10 @@
 ;   );
 ;------------------------------------------------------------------------------
 InternalX86WriteIdtr  PROC
+    pushfq
+    cli
    lidt    fword ptr [rcx]
+    popfq
    ret
 InternalX86WriteIdtr  ENDP