69 lines
2.1 KiB
Rust
69 lines
2.1 KiB
Rust
use crate::gdt;
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use crate::hlt_loop;
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use crate::vga::{self, Color, ColorCode};
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use crate::{println};
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use lazy_static::lazy_static;
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use x86_64::structures::idt::PageFaultErrorCode;
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use x86_64::structures::idt::{InterruptDescriptorTable, InterruptStackFrame};
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use pic::{InterruptIndex, init_pic, keyboard_interrupt_handler, timer_interrupt_handler};
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pub mod pic;
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lazy_static! {
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static ref IDT: InterruptDescriptorTable = {
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let mut idt = InterruptDescriptorTable::new();
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idt.breakpoint.set_handler_fn(breakpoint_handler);
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idt.page_fault.set_handler_fn(page_fault_handler);
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unsafe {
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idt.double_fault
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.set_handler_fn(double_fault_handler)
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.set_stack_index(gdt::DOUBLE_FAULT_IST_INDEX);
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}
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idt[InterruptIndex::Timer.as_usize()].set_handler_fn(timer_interrupt_handler);
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idt[InterruptIndex::Keyboard.as_usize()].set_handler_fn(keyboard_interrupt_handler);
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idt
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};
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}
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pub fn init_idt() {
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println!("Loading IDT");
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IDT.load();
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init_pic();
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println!("Enabling interrupts");
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x86_64::instructions::interrupts::enable();
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}
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extern "x86-interrupt" fn breakpoint_handler(stack_frame: InterruptStackFrame) {
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let color: vga::ColorCode = vga::get_color();
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vga::change_color(ColorCode::new(Color::Pink, Color::Black));
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println!("EXCEPTION: BREAKPOINT\n{:#?}", stack_frame);
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vga::change_color(color);
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}
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extern "x86-interrupt" fn page_fault_handler(
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stack_frame: InterruptStackFrame,
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error_code: PageFaultErrorCode,
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) {
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let color: vga::ColorCode = vga::get_color();
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vga::change_color(ColorCode::new(Color::LightRed, Color::Black));
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use x86_64::registers::control::Cr2;
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println!("EXCEPTION: PAGE FAULT");
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println!("Accessed Address: {:?}", Cr2::read());
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println!("Error Code: {:?}", error_code);
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println!("{:#?}", stack_frame);
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vga::change_color(color);
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hlt_loop();
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}
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extern "x86-interrupt" fn double_fault_handler(
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stack_frame: InterruptStackFrame,
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_error_code: u64,
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) -> ! {
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panic!("EXCEPTION: DOUBLE FAULT\n{:#?}", stack_frame);
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}
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