From 7027169941c0b6265047961ee9edd371477f2721 Mon Sep 17 00:00:00 2001 From: Jordan Justen Date: Mon, 30 May 2016 18:52:05 -0700 Subject: [PATCH] MdePkg BaseLib: Convert X64/WriteMsr64.asm to NASM The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert X64/WriteMsr64.asm to X64/WriteMsr64.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen --- MdePkg/Library/BaseLib/BaseLib.inf | 1 + MdePkg/Library/BaseLib/X64/WriteMsr64.nasm | 41 ++++++++++++++++++++++ 2 files changed, 42 insertions(+) create mode 100644 MdePkg/Library/BaseLib/X64/WriteMsr64.nasm diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index 55b332a399..7f4ba3fb09 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -588,6 +588,7 @@ X64/CpuBreakpoint.nasm| INTEL X64/CpuBreakpoint.asm | INTEL + X64/WriteMsr64.nasm| INTEL X64/WriteMsr64.asm | INTEL X64/ReadMsr64.asm | INTEL X64/RdRand.nasm| INTEL diff --git a/MdePkg/Library/BaseLib/X64/WriteMsr64.nasm b/MdePkg/Library/BaseLib/X64/WriteMsr64.nasm new file mode 100644 index 0000000000..2dbb4012b8 --- /dev/null +++ b/MdePkg/Library/BaseLib/X64/WriteMsr64.nasm @@ -0,0 +1,41 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, 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. +; +; Module Name: +; +; WriteMsr64.Asm +; +; Abstract: +; +; AsmWriteMsr64 function +; +; Notes: +; +;------------------------------------------------------------------------------ + + DEFAULT REL + SECTION .text + +;------------------------------------------------------------------------------ +; UINT64 +; EFIAPI +; AsmWriteMsr64 ( +; IN UINT32 Index, +; IN UINT64 Value +; ); +;------------------------------------------------------------------------------ +global ASM_PFX(AsmWriteMsr64) +ASM_PFX(AsmWriteMsr64): + mov rax, rdx ; meanwhile, rax <- return value + shr rdx, 0x20 ; edx:eax contains the value to write + wrmsr + ret + -- 2.39.2