MdePkg/BaseLib: Support IA32 processors without CMOVx

[mirror_edk2.git] / MdePkg / Library / BaseLib / X64 / ReadMsr64.c

diff --git a/MdePkg/Library/BaseLib/X64/ReadMsr64.c b/MdePkg/Library/BaseLib/X64/ReadMsr64.c
index 15a573fc09308b55a68ed9efc29df848aa946cf6..343e9246b0a3e92e97cdeb435e9c30bf3ce9c9f9 100644 (file)
--- a/MdePkg/Library/BaseLib/X64/ReadMsr64.c
+++ b/MdePkg/Library/BaseLib/X64/ReadMsr64.c
@@ -1,25 +1,33 @@
 /** @file\r
   CpuBreakpoint function.\r
 \r
-  Copyright (c) 2006 - 2007, Intel Corporation<BR>\r
-  All rights reserved. This program and the accompanying materials\r
+  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
+  This program and the accompanying materials\r
   are licensed and made available under the terms and conditions of the BSD License\r
   which accompanies this distribution.  The full text of the license may be found at\r
-  http://opensource.org/licenses/bsd-license.php\r
+  http://opensource.org/licenses/bsd-license.php.\r
 \r
   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
 \r
 **/\r
 \r
-//\r
-// Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics\r
-//\r
+/**\r
+  Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics.\r
+**/\r
+\r
 unsigned __int64 __readmsr (int register);\r
 \r
 #pragma intrinsic(__readmsr)\r
 \r
+/**\r
+  Read data to MSR.\r
+\r
+  @param  Index                Register index of MSR.\r
 \r
+  @return Value read from MSR.\r
+\r
+**/\r
 UINT64\r
 EFIAPI\r
 AsmReadMsr64 (\r