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Kernel: Rename ProcessPagingScope => ScopedAddressSpaceSwitcher

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This commit is contained in:
Andreas Kling 2021-09-06 17:22:36 +02:00
parent cd8d52e6ae
commit f16b9a691f
8 changed files with 24 additions and 24 deletions
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27
Kernel/Memory/ScopedAddressSpaceSwitcher.cpp Normal file
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@ -0,0 +1,27 @@
/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Arch/x86/InterruptDisabler.h>
#include <Kernel/Memory/MemoryManager.h>
#include <Kernel/Memory/ScopedAddressSpaceSwitcher.h>
namespace Kernel {
ScopedAddressSpaceSwitcher::ScopedAddressSpaceSwitcher(Process& process)
{
VERIFY(Thread::current() != nullptr);
m_previous_cr3 = read_cr3();
MM.enter_process_address_space(process);
}
ScopedAddressSpaceSwitcher::~ScopedAddressSpaceSwitcher()
{
InterruptDisabler disabler;
Thread::current()->regs().cr3 = m_previous_cr3;
write_cr3(m_previous_cr3);
}
}