[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / WriteMsr64.c

/** @file\r
  AsmWriteMsr64 function\r
\r
  Copyright (c) 2006, Intel Corporation<BR>\r
  All rights reserved. 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
\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
#if _MSC_EXTENSIONS\r
\r
UINT64\r
EFIAPI\r
AsmWriteMsr64 (\r
  IN UINT32  Index,\r
  IN UINT64  Value\r
  )\r
{\r
  _asm {\r
    mov     edx, dword ptr [Value + 4]\r
    mov     eax, dword ptr [Value + 0]\r
    mov     ecx, Index\r
    wrmsr\r
  }\r
}\r
\r
#endif\r
Commit	Line	Data
23086ba8	1	/** @file\r
	2	AsmWriteMsr64 function\r
	3	\r
	4	Copyright (c) 2006, Intel Corporation<BR>\r
	5	All rights reserved. This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	\r
	13	**/\r
	14	\r
	15	#if _MSC_EXTENSIONS\r
	16	\r
	17	UINT64\r
	18	EFIAPI\r
	19	AsmWriteMsr64 (\r
	20	IN UINT32 Index,\r
	21	IN UINT64 Value\r
	22	)\r
	23	{\r
	24	_asm {\r
	25	mov edx, dword ptr [Value + 4]\r
	26	mov eax, dword ptr [Value + 0]\r
	27	mov ecx, Index\r
	28	wrmsr\r
	29	}\r
	30	}\r
	31	\r
	32	#endif\r