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33 lines
631 B
C
33 lines
631 B
C
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/** @file
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AsmReadIdtr function
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Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "BaseLibInternals.h"
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/**
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Reads the current Interrupt Descriptor Table Register(GDTR) descriptor.
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Reads and returns the current IDTR descriptor and returns it in Idtr. This
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function is only available on IA-32 and x64.
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@param Idtr The pointer to a IDTR descriptor.
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**/
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VOID
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EFIAPI
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InternalX86ReadIdtr (
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OUT IA32_DESCRIPTOR *Idtr
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)
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{
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_asm {
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mov eax, Idtr
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sidt fword ptr [eax]
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}
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}
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