RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 21:17:45 +00:00
Code Issues Activity Actions

Kernel: Split SmapDisabler so header is platform independent

Browse source 
A new header file has been created in the Arch/ folder while the
implementation has been moved into a CPP living in the X86 folder.
This commit is contained in:
James Mintram 2021-10-14 22:53:48 +01:00 • committed by Linus Groh
parent f4fb637914
commit 0fbeac6011
12 changed files with 76 additions and 39 deletions
Download patch file Download diff file Expand all files Collapse all files

25
Kernel/Arch/x86/SmapDisabler.cpp Normal file
View file

@ -0,0 +1,25 @@
/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Arch/SmapDisabler.h>
#include <Kernel/Arch/x86/ASM_wrapper.h>
namespace Kernel {
SmapDisabler::SmapDisabler()
: m_flags(cpu_flags())
{
stac();
}
SmapDisabler::~SmapDisabler()
{
if (!(m_flags & 0x40000))
clac();
}
}

31
Kernel/Arch/x86/SmapDisabler.h
View file

@ -1,31 +0,0 @@
/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <Kernel/Arch/x86/ASM_wrapper.h>
namespace Kernel {
class SmapDisabler {
public:
ALWAYS_INLINE SmapDisabler()
: m_flags(cpu_flags())
{
stac();
}
ALWAYS_INLINE ~SmapDisabler()
{
if (!(m_flags & 0x40000))
clac();
}
private:
const FlatPtr m_flags;
};
}