diff options
| author | mdkinney <mdkinney@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-10-04 23:50:23 +0000 |
|---|---|---|
| committer | mdkinney <mdkinney@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-10-04 23:50:23 +0000 |
| commit | 9730cac8a1f5d205b1e7472bfc692a7f8f2aff7b (patch) | |
| tree | 18529cd334e5d2e9f776bf9ed7ce1b5b7df31404 /MdePkg/Library/BaseLib/X64/WriteMsr64.c | |
| parent | c4bbb32b307b36fec3fafe3b55f0753fcb0908fb (diff) | |
| download | edk2-platforms-9730cac8a1f5d205b1e7472bfc692a7f8f2aff7b.tar.xz | |
Use intrinsic
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1669 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/X64/WriteMsr64.c')
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/WriteMsr64.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/X64/WriteMsr64.c b/MdePkg/Library/BaseLib/X64/WriteMsr64.c new file mode 100644 index 0000000000..8e5d90fec4 --- /dev/null +++ b/MdePkg/Library/BaseLib/X64/WriteMsr64.c @@ -0,0 +1,35 @@ +/** @file
+ CpuBreakpoint function.
+
+ Copyright (c) 2006, 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
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#if _MSC_EXTENSIONS
+
+//
+// Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics
+//
+void __writemsr (unsigned long Register, unsigned __int64 Value);
+
+#pragma intrinsic(__writemsr)
+
+UINT64
+EFIAPI
+AsmWriteMsr64 (
+ IN UINT32 Index,
+ IN UINT64 Value
+ )
+{
+ __writemsr (Index, Value);
+ return Value;
+}
+
+#endif
|