mirror of
https://github.com/RGBCube/serenity
synced 2025-06-03 19:38:14 +00:00
7e1e208d08
FIXME: There's still a lot to do like for example, port `quickmap_page`. This does however get us further into the boot process than before.
47 lines
998 B
C++
47 lines
998 B
C++
/*
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* Copyright (c) 2022, Timon Kruiper <timonkruiper@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Format.h>
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#include <Kernel/Arch/Processor.h>
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#include <Kernel/Arch/aarch64/ASM_wrapper.h>
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#include <Kernel/Arch/aarch64/CPU.h>
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extern "C" uintptr_t vector_table_el1;
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namespace Kernel {
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Processor* g_current_processor;
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void Processor::initialize(u32 cpu)
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{
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VERIFY(g_current_processor == nullptr);
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auto current_exception_level = static_cast<u64>(Aarch64::Asm::get_current_exception_level());
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dbgln("CPU{} started in: EL{}", cpu, current_exception_level);
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dbgln("Drop CPU{} to EL1", cpu);
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drop_to_exception_level_1();
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// Load EL1 vector table
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Aarch64::Asm::el1_vector_table_install(&vector_table_el1);
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g_current_processor = this;
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}
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[[noreturn]] void Processor::halt()
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{
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disable_interrupts();
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for (;;)
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asm volatile("wfi");
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}
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void Processor::flush_tlb_local(VirtualAddress, size_t)
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{
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// FIXME: Implement this
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}
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}
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