audk/MdePkg/Library/BaseLib/Ia32/ReadCr4.c

33 lines
737 B
C

/** @file
AsmReadCr4 function
Copyright (c) 2006 - 2007, Intel Corporation<BR>
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.
**/
//
// Include common header file for this module.
//
UINTN
EFIAPI
AsmReadCr4 (
VOID
)
{
__asm {
_emit 0x0f // mov eax, cr4
_emit 0x20
_emit 0xE0
}
}