diff options
Diffstat (limited to 'UefiCpuPkg/CpuDxe/X64/CpuAsm.S')
| -rw-r--r-- | UefiCpuPkg/CpuDxe/X64/CpuAsm.S | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/UefiCpuPkg/CpuDxe/X64/CpuAsm.S b/UefiCpuPkg/CpuDxe/X64/CpuAsm.S index 8f191320a8..f1481d85d6 100644 --- a/UefiCpuPkg/CpuDxe/X64/CpuAsm.S +++ b/UefiCpuPkg/CpuDxe/X64/CpuAsm.S @@ -2,7 +2,7 @@ #------------------------------------------------------------------------------
#*
-#* 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
@@ -234,6 +234,9 @@ CommonInterruptEntry_al_0000: movq %rsp, %rdi
.byte 0x0f, 0x0ae, 0x07 #fxsave [rdi]
+#; UEFI calling convention for x64 requires that Direction flag in EFLAGs is clear
+ cld
+
#; UINT32 ExceptionData;
pushq 16(%rbp)
|