CloverBootloader/MdePkg/Library/BaseLib/X64/WriteMsr64.c
2019-09-03 12:58:42 +03:00

37 lines
678 B
C

/** @file
CpuBreakpoint function.
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
/**
Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics.
**/
void __writemsr (unsigned long Register, unsigned __int64 Value);
#pragma intrinsic(__writemsr)
/**
Write data to MSR.
@param Index The register index of MSR.
@param Value Data wants to be written.
@return Value written to MSR.
**/
UINT64
EFIAPI
AsmWriteMsr64 (
IN UINT32 Index,
IN UINT64 Value
)
{
__writemsr (Index, Value);
return Value;
}