Load and test our new IDT

src/interrupts.rs

@@ -1,9 +1,17 @@
 use crate::println;
+use lazy_static::lazy_static;
 use x86_64::structures::idt::{ExceptionStackFrame, InterruptDescriptorTable};
 
-pub fn init_idt() {
+lazy_static! {
+    static ref IDT: InterruptDescriptorTable = {
         let mut idt = InterruptDescriptorTable::new();
         idt.breakpoint.set_handler_fn(breakpoint_handler);
+        idt
+    };
+}
+
+pub fn init_idt() {
+    IDT.load();
 }
 
 extern "x86-interrupt" fn breakpoint_handler(stack_frame: &mut ExceptionStackFrame) {

src/main.rs

@@ -10,6 +10,12 @@ use core::panic::PanicInfo;
 pub extern "C" fn _start() -> ! {
     println!("Hello World{}", "!");
 
+    blog_os::interrupts::init_idt();
+
+    // invoke a breakpoint exception
+    x86_64::instructions::int3();
+
+    println!("It did not crash!");
     loop {}
 }