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Make CPU-local and early ACPI initialization heap-less

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This commit is contained in:
Zhang Junyang
2025-01-08 20:27:45 +08:00
committed by Tate, Hongliang Tian
parent 7496b24da1
commit 92bc8cbbf7
17 changed files with 188 additions and 157 deletions
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26
ostd/src/lib.rs
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@ -47,7 +47,7 @@ mod util;
use core::sync::atomic::{AtomicBool, Ordering};
pub use ostd_macros::{main, panic_handler};
pub use ostd_macros::{global_frame_allocator, main, panic_handler};
pub use ostd_pod::Pod;
pub use self::{error::Error, prelude::Result};
@ -74,19 +74,33 @@ unsafe fn init() {
logger::init();
// SAFETY: This function is called only once and only on the BSP.
unsafe { cpu::local::early_init_bsp_local_base() };
// SAFETY: They are only called once on BSP and ACPI has been initialized.
// No CPU local objects have been accessed by this far.
unsafe {
cpu::init_num_cpus();
cpu::local::init_on_bsp();
cpu::set_this_cpu_id(0);
}
// SAFETY: We are on the BSP and APs are not yet started.
let meta_pages = unsafe { mm::frame::meta::init() };
// The frame allocator should be initialized immediately after the metadata
// is initialized. Otherwise the boot page table can't allocate frames.
// SAFETY: This function is called only once.
unsafe { mm::frame::allocator::init() };
mm::kspace::init_kernel_page_table(meta_pages);
// SAFETY: This function is called only once and only on the BSP.
unsafe { mm::heap_allocator::init() };
crate::sync::init();
boot::init_after_heap();
mm::frame::allocator::init();
mm::kspace::init_kernel_page_table(mm::init_page_meta());
mm::dma::init();
arch::init_on_bsp();
unsafe { arch::late_init_on_bsp() };
smp::init();