Method init

bootloader/kernel/src/local_apic.rs:32–47

(local_apic_address: PhysAddr)

impl LocalApic {
    pub unsafe fn init(local_apic_address: PhysAddr) -> &'static Self {
        disable_pic();

        let virtaddr: VirtAddr = phys_to_virt(local_apic_address);
        let this = LOCAL_APIC.get_or_init(|| Self {
            virt_address: virtaddr,
        });
        log::info!("LocalApic {:?}", virtaddr);

        let mut msr = Msr::new(0x1B);
        let r = msr.read();
        msr.write(r | (1 << 11));

        this.write(0xF0, this.read(0xF0) | 0x1FF);
        this
    }

    unsafe fn read(&self, reg: u32) -> u32 {
        volatile_load((self.virt_address.as_u64() + reg as u64) as *const u32)