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

/** @file\r
  CpuBreakpoint function.\r
\r
  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\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
  IN UINT32  Index\r
  )\r
{\r
  return __readmsr (Index);\r
}\r
\r
Commit	Line	Data
f1baef62	1	/** @file\r
	2	CpuBreakpoint function.\r
	3	\r
bb817c56	4	Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
9344f092	5	SPDX-License-Identifier: BSD-2-Clause-Patent\r
f1baef62	6	\r
	7	**/\r
	8	\r
42eedea9	9	/**\r
	10	Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics.\r
	11	**/\r
7e43ed89	12	\r
f1baef62	13	unsigned __int64 __readmsr (int register);\r
	14	\r
	15	#pragma intrinsic(__readmsr)\r
	16	\r
42eedea9	17	/**\r
	18	Read data to MSR.\r
	19	\r
	20	@param Index Register index of MSR.\r
	21	\r
	22	@return Value read from MSR.\r
	23	\r
	24	**/\r
f1baef62	25	UINT64\r
	26	EFIAPI\r
	27	AsmReadMsr64 (\r
	28	IN UINT32 Index\r
	29	)\r
	30	{\r
	31	return __readmsr (Index);\r
	32	}\r
	33	\r