mirror of
https://github.com/RGBCube/serenity
synced 2025-05-15 07:54:58 +00:00
38fca26f54
This adds just enough stubs to make the kernel compile on x86_64. Obviously it won't do anything useful - in fact it won't even attempt to boot because Multiboot doesn't support ELF64 binaries - but it gets those compiler errors out of the way so more progress can be made getting all the missing functionality in place.
32 lines
729 B
C++
32 lines
729 B
C++
/*
|
|
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <Kernel/Arch/x86/InterruptDisabler.h>
|
|
#include <Kernel/Panic.h>
|
|
#include <Kernel/VM/MemoryManager.h>
|
|
#include <Kernel/VM/ProcessPagingScope.h>
|
|
|
|
namespace Kernel {
|
|
|
|
ProcessPagingScope::ProcessPagingScope(Process& process)
|
|
{
|
|
VERIFY(Thread::current() != nullptr);
|
|
m_previous_cr3 = read_cr3();
|
|
MM.enter_process_paging_scope(process);
|
|
}
|
|
|
|
ProcessPagingScope::~ProcessPagingScope()
|
|
{
|
|
InterruptDisabler disabler;
|
|
#if ARCH(I386)
|
|
Thread::current()->tss().cr3 = m_previous_cr3;
|
|
#else
|
|
PANIC("ProcessPagingScope::~ProcessPagingScope() not implemented");
|
|
#endif
|
|
write_cr3(m_previous_cr3);
|
|
}
|
|
|
|
}
|