103 lines
2.7 KiB
Rust
103 lines
2.7 KiB
Rust
use log::warn;
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use crate::{
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arch::{
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init::{early_setup_arch, setup_arch, setup_arch_post},
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time::time_init,
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CurrentIrqArch, CurrentSMPArch, CurrentSchedArch,
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},
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driver::{
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acpi::acpi_init, base::init::driver_init, serial::serial_early_init,
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video::VideoRefreshManager,
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},
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exception::{init::irq_init, softirq::softirq_init, InterruptArch},
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filesystem::vfs::core::vfs_init,
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init::init_intertrait,
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libs::{
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futex::futex::Futex,
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lib_ui::{
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screen_manager::{scm_init, scm_reinit},
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textui::textui_init,
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},
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printk::early_init_logging,
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},
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mm::init::mm_init,
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process::{kthread::kthread_init, process_init, ProcessManager},
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sched::SchedArch,
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smp::{early_smp_init, SMPArch},
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syscall::Syscall,
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time::{
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clocksource::clocksource_boot_finish, timekeeping::timekeeping_init, timer::timer_init,
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},
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};
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use super::boot::boot_callback_except_early;
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/// The entry point for the kernel
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///
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/// 前面可能会有一个架构相关的函数
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pub fn start_kernel() -> ! {
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// 进入内核后，中断应该是关闭的
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assert!(!CurrentIrqArch::is_irq_enabled());
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do_start_kernel();
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CurrentSchedArch::initial_setup_sched_local();
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CurrentSchedArch::enable_sched_local();
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ProcessManager::arch_idle_func();
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}
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#[inline(never)]
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fn do_start_kernel() {
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init_before_mem_init();
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early_init_logging();
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early_setup_arch().expect("setup_arch failed");
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unsafe { mm_init() };
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if scm_reinit().is_ok() {
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if let Err(e) = textui_init() {
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warn!("Failed to init textui: {:?}", e);
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}
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}
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boot_callback_except_early();
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init_intertrait();
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vfs_init().expect("vfs init failed");
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driver_init().expect("driver init failed");
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acpi_init().expect("acpi init failed");
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crate::sched::sched_init();
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process_init();
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early_smp_init().expect("early smp init failed");
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irq_init().expect("irq init failed");
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setup_arch().expect("setup_arch failed");
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CurrentSMPArch::prepare_cpus().expect("prepare_cpus failed");
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// sched_init();
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softirq_init().expect("softirq init failed");
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Syscall::init().expect("syscall init failed");
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timekeeping_init();
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time_init();
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timer_init();
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kthread_init();
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setup_arch_post().expect("setup_arch_post failed");
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clocksource_boot_finish();
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Futex::init();
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#[cfg(all(target_arch = "x86_64", feature = "kvm"))]
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crate::virt::kvm::kvm_init();
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}
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/// 在内存管理初始化之前，执行的初始化
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#[inline(never)]
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fn init_before_mem_init() {
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serial_early_init().expect("serial early init failed");
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let video_ok = unsafe { VideoRefreshManager::video_init().is_ok() };
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scm_init(video_ok);
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}
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