/** @file | |
AsmWriteIdtr function | |
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR> | |
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" | |
/** | |
Writes the current Interrupt Descriptor Table Register(GDTR) descriptor. | |
Writes the current IDTR descriptor and returns it in Idtr. This function is | |
only available on IA-32 and x64. | |
@param Idtr The pointer to a IDTR descriptor. | |
**/ | |
VOID | |
EFIAPI | |
InternalX86WriteIdtr ( | |
IN CONST IA32_DESCRIPTOR *Idtr | |
) | |
{ | |
_asm { | |
mov eax, Idtr | |
pushfd | |
cli | |
lidt fword ptr [eax] | |
popfd | |
} | |
} | |