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26 lines
377 B
C++
26 lines
377 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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#include <Kernel/Arch/SmapDisabler.h>
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#include <Kernel/Arch/x86_64/ASM_wrapper.h>
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namespace Kernel {
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SmapDisabler::SmapDisabler()
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: m_flags(cpu_flags())
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{
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stac();
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}
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SmapDisabler::~SmapDisabler()
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{
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if (!(m_flags & 0x40000))
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clac();
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}
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}
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