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1 /** @file
2   CpuBreakpoint function.
3 
4   Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
5   This program and the accompanying materials
6   are licensed and made available under the terms and conditions of the BSD License
7   which accompanies this distribution.  The full text of the license may be found at
8   http://opensource.org/licenses/bsd-license.php.
9 
10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12 
13 **/
14 
15 /**
16   Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics.
17 **/
18 
19 unsigned __int64 __readmsr (int register);
20 
21 #pragma intrinsic(__readmsr)
22 
23 /**
24   Read data to MSR.
25 
26   @param  Index                Register index of MSR.
27 
28   @return Value read from MSR.
29 
30 **/
31 UINT64
32 EFIAPI
AsmReadMsr64(IN UINT32 Index)33 AsmReadMsr64 (
34   IN UINT32  Index
35   )
36 {
37   return __readmsr (Index);
38 }
39 
40