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Kernel/aarch64: Implement Thread Local Storage

This commit adds Processor::set_thread_specific_data, and this function
is used to factor out architecture specific implementation of setting
the thread specific data. This function is implemented for
aarch64 and x86_64, and the callsites are changed to use this function
instead.
This commit is contained in:
Timon Kruiper 2023-02-15 19:49:37 +01:00 committed by Jelle Raaijmakers
parent 7d0917f50b
commit cfd73e5d9f
6 changed files with 24 additions and 6 deletions

View file

@ -454,6 +454,8 @@ extern "C" void enter_thread_context(Thread* from_thread, Thread* to_thread)
to_thread->set_cpu(Processor::current().id());
Processor::set_thread_specific_data(to_thread->thread_specific_data());
auto in_critical = to_thread->saved_critical();
VERIFY(in_critical > 0);
Processor::restore_critical(in_critical);
@ -466,4 +468,9 @@ StringView Processor::platform_string()
return "aarch64"sv;
}
void Processor::set_thread_specific_data(VirtualAddress thread_specific_data)
{
Aarch64::Asm::set_tpidr_el0(thread_specific_data.get());
}
}