diff options
| author | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-02-23 07:32:20 +0000 |
|---|---|---|
| committer | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-02-23 07:32:20 +0000 |
| commit | 28b5f7c06238b25732bf6f0c72c3d42b94abee66 (patch) | |
| tree | 6c86c7db041010025e4b9f92efccb87f6ccbec79 /MdePkg/Library/BaseLib/Ia32 | |
| parent | f18f2882e95fe2158bd19cf6a9a6ca569cea93de (diff) | |
| download | edk2-platforms-28b5f7c06238b25732bf6f0c72c3d42b94abee66.tar.xz | |
Disable interrupt when changing IDTR register.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10046 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/Ia32')
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/WriteIdtr.S | 5 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/WriteIdtr.asm | 5 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/WriteIdtr.c | 5 |
3 files changed, 12 insertions, 3 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/WriteIdtr.S b/MdePkg/Library/BaseLib/Ia32/WriteIdtr.S index 1f4857e0c4..e9fc03bb5e 100644 --- a/MdePkg/Library/BaseLib/Ia32/WriteIdtr.S +++ b/MdePkg/Library/BaseLib/Ia32/WriteIdtr.S @@ -1,6 +1,6 @@ #------------------------------------------------------------------------------
#
-# Copyright (c) 2006 - 2008, 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
@@ -31,5 +31,8 @@ ASM_GLOBAL ASM_PFX(InternalX86WriteIdtr)
ASM_PFX(InternalX86WriteIdtr):
movl 4(%esp), %eax
+ pushfl
+ cli
lidt (%eax)
+ popfl
ret
diff --git a/MdePkg/Library/BaseLib/Ia32/WriteIdtr.asm b/MdePkg/Library/BaseLib/Ia32/WriteIdtr.asm index 65fca407f2..76c3f13339 100644 --- a/MdePkg/Library/BaseLib/Ia32/WriteIdtr.asm +++ b/MdePkg/Library/BaseLib/Ia32/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
@@ -34,7 +34,10 @@ ;------------------------------------------------------------------------------
InternalX86WriteIdtr PROC
mov eax, [esp + 4]
+ pushfd
+ cli
lidt fword ptr [eax]
+ popfd
ret
InternalX86WriteIdtr ENDP
diff --git a/MdePkg/Library/BaseLib/Ia32/WriteIdtr.c b/MdePkg/Library/BaseLib/Ia32/WriteIdtr.c index 33d2b29fe8..d58520fb25 100644 --- a/MdePkg/Library/BaseLib/Ia32/WriteIdtr.c +++ b/MdePkg/Library/BaseLib/Ia32/WriteIdtr.c @@ -1,7 +1,7 @@ /** @file
AsmWriteIdtr function
- Copyright (c) 2006 - 2008, Intel Corporation<BR>
+ Copyright (c) 2006 - 2010, Intel Corporation<BR>
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
@@ -32,7 +32,10 @@ InternalX86WriteIdtr ( {
_asm {
mov eax, Idtr
+ pushfd
+ cli
lidt fword ptr [eax]
+ popfd
}
}
|