/** @file | |
AsmReadGdtr function | |
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
#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 The pointer to a GDTR descriptor. | |
**/ | |
VOID | |
EFIAPI | |
InternalX86ReadGdtr ( | |
OUT IA32_DESCRIPTOR *Gdtr | |
) | |
{ | |
_asm { | |
mov eax, Gdtr | |
sgdt fword ptr [eax] | |
} | |
} |