From 5fc3b5d6c8f3f23823069f060e8ffc8f80bccdf7 Mon Sep 17 00:00:00 2001 From: andrewfish Date: Thu, 22 Jul 2010 19:22:34 +0000 Subject: Added to support X64 port (with SV5 ABI). May be able to remove after we port everything, but Sec, to EFI X64 ABI. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10683 6f19259b-4bc3-4df7-8a09-765794883524 --- UnixPkg/Library/UnixBaseLib/X64/WriteMsr64.c | 42 ++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 UnixPkg/Library/UnixBaseLib/X64/WriteMsr64.c (limited to 'UnixPkg/Library/UnixBaseLib/X64/WriteMsr64.c') diff --git a/UnixPkg/Library/UnixBaseLib/X64/WriteMsr64.c b/UnixPkg/Library/UnixBaseLib/X64/WriteMsr64.c new file mode 100644 index 0000000000..58f0754246 --- /dev/null +++ b/UnixPkg/Library/UnixBaseLib/X64/WriteMsr64.c @@ -0,0 +1,42 @@ +/** @file + CpuBreakpoint function. + + Copyright (c) 2006 - 2010, Intel Corporation. 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. +**/ + +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; +} + -- cgit v1.2.3