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1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
31 lines
450 B
C++
31 lines
450 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 <Kernel/Arch/x86/CPU.h>
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namespace Kernel {
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class SmapDisabler {
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public:
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ALWAYS_INLINE 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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ALWAYS_INLINE ~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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private:
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const FlatPtr m_flags;
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};
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}
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