audk/MdePkg/Library/BaseLib/X64/ReadMsr64.c

39 lines
923 B
C

/** @file
CpuBreakpoint function.
Copyright (c) 2006 - 2008, 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.
**/
/**
Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics.
**/
unsigned __int64 __readmsr (int register);
#pragma intrinsic(__readmsr)
/**
Read data to MSR.
@param Index Register index of MSR.
@return Value read from MSR.
**/
UINT64
EFIAPI
AsmReadMsr64 (
IN UINT32 Index
)
{
return __readmsr (Index);
}