new: interrupt

3 files changed, 37 insertions, 1 deletions

diff --git a/kernel/src/init.rs b/kernel/src/init.rs
index ef51b1f..5870a18 100644
--- a/kernel/src/init.rs
+++ b/kernel/src/init.rs
@@ -1,2 +1,7 @@
 pub mod acpi;
 pub mod earlyprintk;
+pub mod int;
+
+pub fn init() {
+    int::init();
+}
diff --git a/kernel/src/init/int.rs b/kernel/src/init/int.rs
new file mode 100644
index 0000000..0300d87
--- /dev/null
+++ b/kernel/src/init/int.rs
@@ -0,0 +1,26 @@
+use spin::LazyLock;
+use x86_64::structures::idt::{InterruptDescriptorTable, InterruptStackFrame};
+
+use crate::printlnk;
+
+static IDT: LazyLock<InterruptDescriptorTable> = LazyLock::new(|| {
+    let mut idt = InterruptDescriptorTable::new();
+    idt.breakpoint.set_handler_fn(breakpoint_handler);
+    idt.double_fault.set_handler_fn(double_fault_handler);
+    idt
+});
+
+extern "x86-interrupt" fn double_fault_handler(
+    stack_frame: InterruptStackFrame,
+    error_code: u64,
+) -> ! {
+    panic!("EXCEPTION: DOUBLE FAULT\n{stack_frame:#?}\nERROR CODE:{error_code}");
+}
+
+extern "x86-interrupt" fn breakpoint_handler(stack_frame: InterruptStackFrame) {
+    _ = printlnk!("EXCEPTION: BREAKPOINT\n{stack_frame:#?}");
+}
+
+pub fn init() {
+    IDT.load();
+}
diff --git a/kernel/src/main.rs b/kernel/src/main.rs
index 308d7e1..6a1cae3 100644
--- a/kernel/src/main.rs
+++ b/kernel/src/main.rs
@@ -4,11 +4,16 @@
 // extern crate alloc;
 
 use bootloader_api::{BootInfo, entry_point};
-use kernel::{pm::hcf, printlnk};
+use kernel::{init, pm::hcf, printlnk};
 
 // const CONFIG: BootloaderConfig = BootloaderConfig::new_default();
 
 fn kmain(_boot_info: &'static mut BootInfo) -> ! {
+    init::init();
+    x86_64::instructions::interrupts::int3();
+    unsafe {
+        *(0xdeadbeef as *mut u8) = 42;
+    };
     _ = printlnk!("test");
     hcf()
 }