112 lines
3.0 KiB
Rust
112 lines
3.0 KiB
Rust
#![no_std]
|
|
#![feature(abi_x86_interrupt)]
|
|
#![warn(
|
|
clippy::correctness,
|
|
clippy::nursery,
|
|
clippy::unnecessary_cast,
|
|
clippy::all,
|
|
clippy::suspicious,
|
|
clippy::perf,
|
|
rustdoc::missing_errors_doc,
|
|
rustdoc::missing_panics_doc
|
|
)]
|
|
|
|
extern crate alloc;
|
|
|
|
// use arch::x86_64::apic::enable_apic;
|
|
use core::arch::asm;
|
|
// use libk::drivers::mem::pmm;
|
|
use limine::BaseRevision;
|
|
|
|
// use libk::drivers::alloc::allocator::init_heap;
|
|
use libk::prelude::*;
|
|
|
|
mod arch;
|
|
|
|
/// Sets the base revision to the latest revision supported by the crate.
|
|
/// See specification for further info.
|
|
/// Be sure to mark all limine requests with #[used], otherwise they may be removed by the compiler.
|
|
#[used]
|
|
// The .requests section allows limine to find the requests faster and more safely.
|
|
#[unsafe(link_section = ".requests")]
|
|
static BASE_REVISION: BaseRevision = BaseRevision::new();
|
|
|
|
#[panic_handler]
|
|
fn rust_panic(_info: &core::panic::PanicInfo) -> ! {
|
|
println!("Kernel panic: {}", _info);
|
|
serial_println!("Kernel panic: {}", _info);
|
|
hcf();
|
|
}
|
|
|
|
pub fn hcf() -> ! {
|
|
loop {
|
|
unsafe {
|
|
#[cfg(target_arch = "x86_64")]
|
|
asm!("hlt");
|
|
#[cfg(any(target_arch = "aarch64", target_arch = "riscv64"))]
|
|
asm!("wfi");
|
|
#[cfg(target_arch = "loongarch64")]
|
|
asm!("idle 0");
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn boot() -> Result<(), &'static str> {
|
|
if !BASE_REVISION.is_supported() {
|
|
return Err("base revision not supported");
|
|
}
|
|
|
|
use arch::x86_64::{gdt, interrupts, mem::memmap};
|
|
|
|
let _memory_map = memmap::get_memory_map();
|
|
|
|
print_log!(" Initialising Serial... ");
|
|
if libk::drivers::io::serial::init().is_err() {
|
|
println_log!("[Not Detected]")
|
|
} else {
|
|
println_log!("[Success]");
|
|
}
|
|
|
|
print_log!(" Setting Up Global Descriptor Table... ");
|
|
gdt::init();
|
|
println_log!("[Success]");
|
|
|
|
print_log!(" Setting Up Interrupt Descriptor Table... ");
|
|
interrupts::init_idt();
|
|
println_log!("[Success]");
|
|
|
|
print_log!(" Initialising Memory Subsystem... ");
|
|
// let physical_memory_offset = VirtAddr::new(*memmap::PHYSICAL_MEMORY_OFFSET);
|
|
// pmm::init_page_table(physical_memory_offset);
|
|
println_log!("[Success]");
|
|
|
|
print_log!(" Setting Up Page Table... ");
|
|
// pmm::init_frame_allocator(memory_map);
|
|
println_log!("[Success]");
|
|
|
|
print_log!(" Initialising Heap... ");
|
|
// TODO: Reenable the heap.
|
|
// if init_heap().is_err() {
|
|
// return Err("Failed to initialise heap: error");
|
|
// }
|
|
println_log!("[Success]");
|
|
|
|
print_log!(" Enabling PICs... ");
|
|
interrupts::enable_pic();
|
|
println_log!("[Success]");
|
|
|
|
// print_log!(" Disabling PICs... ");
|
|
// interrupts::disable_pic();
|
|
// println_log!("[Success]");
|
|
//
|
|
// print_log!(" Initialising APIC");
|
|
// enable_apic(&mut l4_table, &mut frame_allocator);
|
|
// println_log!("[Success]");
|
|
|
|
print_log!(" Enabling Interrupts... ");
|
|
x86_64::instructions::interrupts::enable();
|
|
println_log!("[Success]");
|
|
|
|
Ok(())
|
|
}
|