diff options
Diffstat (limited to 'UefiCpuPkg/CpuDxe/X64')
| -rw-r--r-- | UefiCpuPkg/CpuDxe/X64/CpuAsm.asm | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/UefiCpuPkg/CpuDxe/X64/CpuAsm.asm b/UefiCpuPkg/CpuDxe/X64/CpuAsm.asm index 79edb7b83e..68fcd3f404 100644 --- a/UefiCpuPkg/CpuDxe/X64/CpuAsm.asm +++ b/UefiCpuPkg/CpuDxe/X64/CpuAsm.asm @@ -1,7 +1,7 @@ TITLE CpuAsm.asm:
;------------------------------------------------------------------------------
;*
-;* Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>
+;* Copyright (c) 2008 - 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
@@ -223,6 +223,9 @@ NoErrorCode: mov rdi, rsp
db 0fh, 0aeh, 07h ;fxsave [rdi]
+;; UEFI calling convention for x64 requires that Direction flag in EFLAGs is clear
+ cld
+
;; UINT32 ExceptionData;
push qword ptr [rbp + 16]
|