diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index c4e3bb7758..84cf8957e2 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -573,6 +573,7 @@ X64/WriteCr3.asm | MSFT X64/WriteCr2.nasm| MSFT X64/WriteCr2.asm | MSFT + X64/WriteCr0.nasm| MSFT X64/WriteCr0.asm | MSFT X64/ReadCr4.asm | MSFT X64/ReadCr3.asm | MSFT @@ -709,6 +710,7 @@ X64/WriteCr3.asm | INTEL X64/WriteCr2.nasm| INTEL X64/WriteCr2.asm | INTEL + X64/WriteCr0.nasm| INTEL X64/WriteCr0.asm | INTEL X64/ReadCr4.asm | INTEL X64/ReadCr3.asm | INTEL diff --git a/MdePkg/Library/BaseLib/X64/WriteCr0.nasm b/MdePkg/Library/BaseLib/X64/WriteCr0.nasm new file mode 100644 index 0000000000..44c474e34f --- /dev/null +++ b/MdePkg/Library/BaseLib/X64/WriteCr0.nasm @@ -0,0 +1,39 @@ +;------------------------------------------------------------------------------ +; +; 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: +; +; WriteCr0.Asm +; +; Abstract: +; +; AsmWriteCr0 function +; +; Notes: +; +;------------------------------------------------------------------------------ + + DEFAULT REL + SECTION .text + +;------------------------------------------------------------------------------ +; UINTN +; EFIAPI +; AsmWriteCr0 ( +; UINTN Cr0 +; ); +;------------------------------------------------------------------------------ +global ASM_PFX(AsmWriteCr0) +ASM_PFX(AsmWriteCr0): + mov cr0, rcx + mov rax, rcx + ret +