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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/InterruptDisabler.h>
#include <Kernel/Memory/MemoryManager.h>
#include <Kernel/Memory/ScopedAddressSpaceSwitcher.h>
namespace Kernel {
ScopedAddressSpaceSwitcher::ScopedAddressSpaceSwitcher(Process& process)
{
VERIFY(Thread::current() != nullptr);
#if ARCH(X86_64)
m_previous_cr3 = read_cr3();
#elif ARCH(AARCH64)
TODO_AARCH64();
#endif
Memory::MemoryManager::enter_process_address_space(process);
}
ScopedAddressSpaceSwitcher::~ScopedAddressSpaceSwitcher()
{
InterruptDisabler disabler;
#if ARCH(X86_64)
Thread::current()->regs().cr3 = m_previous_cr3;
write_cr3(m_previous_cr3);
#elif ARCH(AARCH64)
TODO_AARCH64();
#endif
}
}
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