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28 lines
449 B
C++
28 lines
449 B
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Types.h>
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#include <Kernel/Arch/x86_64/IO.h>
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namespace Kernel {
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class NonMaskableInterruptDisabler {
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public:
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NonMaskableInterruptDisabler()
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{
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IO::out8(0x70, IO::in8(0x70) | 0x80);
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}
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~NonMaskableInterruptDisabler()
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{
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IO::out8(0x70, IO::in8(0x70) & 0x7F);
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}
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};
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}
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