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Kernel: Turn Thread::current and Process::current into functions

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This allows us to query the current thread and process on a
per processor basis
This commit is contained in:
Tom
2020-06-28 15:34:31 -06:00
committed by Andreas Kling
parent cdc78515b6
commit 16783bd14d
39 changed files with 518 additions and 369 deletions
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7
Kernel/VM/MemoryManager.cpp
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@@ -267,7 +267,7 @@ Region* MemoryManager::region_from_vaddr(VirtualAddress vaddr)
PageFaultResponse MemoryManager::handle_page_fault(const PageFault& fault)
{
ASSERT_INTERRUPTS_DISABLED();
ASSERT(Thread::current);
ASSERT(Thread::current() != nullptr);
ScopedSpinLock lock(s_lock);
if (Processor::current().in_irq()) {
dbg() << "CPU[" << Processor::current().id() << "] BUG! Page fault while handling IRQ! code=" << fault.code() << ", vaddr=" << fault.vaddr() << ", irq level: " << Processor::current().in_irq();
@@ -519,10 +519,11 @@ RefPtr<PhysicalPage> MemoryManager::allocate_supervisor_physical_page()
void MemoryManager::enter_process_paging_scope(Process& process)
{
ASSERT(Thread::current);
auto current_thread = Thread::current();
ASSERT(current_thread != nullptr);
ScopedSpinLock lock(s_lock);
Thread::current->tss().cr3 = process.page_directory().cr3();
current_thread->tss().cr3 = process.page_directory().cr3();
write_cr3(process.page_directory().cr3());
}