mirror of https://github.com/acidanthera/audk.git
40 lines
988 B
C
40 lines
988 B
C
/** @file
|
|
AsmReadGdtr function
|
|
|
|
Copyright (c) 2006 - 2008, 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 "BaseLibInternals.h"
|
|
|
|
|
|
/**
|
|
Reads the current Global Descriptor Table Register(GDTR) descriptor.
|
|
|
|
Reads and returns the current GDTR descriptor and returns it in Gdtr. This
|
|
function is only available on IA-32 and x64.
|
|
|
|
@param Gdtr Pointer to a GDTR descriptor.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
InternalX86ReadGdtr (
|
|
OUT IA32_DESCRIPTOR *Gdtr
|
|
)
|
|
{
|
|
_asm {
|
|
mov eax, Gdtr
|
|
sgdt fword ptr [eax]
|
|
}
|
|
}
|
|
|