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Add a page fault handler

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This commit is contained in:
Philipp Oppermann
2019-01-25 14:26:35 +01:00
parent a954c02fbe
commit 207a466707
1 changed files with 15 additions and 1 deletions
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16
src/interrupts.rs
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@@ -7,7 +7,7 @@ use crate::{gdt, hlt_loop, print, println};
use lazy_static::lazy_static;
use pic8259_simple::ChainedPics;
use spin;
use x86_64::structures::idt::{ExceptionStackFrame, InterruptDescriptorTable};
use x86_64::structures::idt::{ExceptionStackFrame, InterruptDescriptorTable, PageFaultErrorCode};
pub const PIC_1_OFFSET: u8 = 32;
pub const PIC_2_OFFSET: u8 = PIC_1_OFFSET + 8;
@@ -22,6 +22,7 @@ lazy_static! {
static ref IDT: InterruptDescriptorTable = {
let mut idt = InterruptDescriptorTable::new();
idt.breakpoint.set_handler_fn(breakpoint_handler);
idt.page_fault.set_handler_fn(page_fault_handler);
idt.double_fault.set_handler_fn(double_fault_handler);
unsafe {
idt.double_fault
@@ -42,6 +43,19 @@ extern "x86-interrupt" fn breakpoint_handler(stack_frame: &mut ExceptionStackFra
println!("EXCEPTION: BREAKPOINT\n{:#?}", stack_frame);
}
extern "x86-interrupt" fn page_fault_handler(
stack_frame: &mut ExceptionStackFrame,
_error_code: PageFaultErrorCode,
) {
use crate::hlt_loop;
use x86_64::registers::control::Cr2;
println!("EXCEPTION: PAGE FAULT");
println!("Accessed Address: {:?}", Cr2::read());
println!("{:#?}", stack_frame);
hlt_loop();
}
extern "x86-interrupt" fn double_fault_handler(
stack_frame: &mut ExceptionStackFrame,
_error_code: u64,