Rename interrupts.rs to interrupts/mod.rs

src/interrupts/mod.rs

@@ -0,0 +1,39 @@
+use x86_64::VirtualAddress;
+use x86_64::structures::idt::{Idt, ExceptionStackFrame};
+use x86_64::structures::tss::TaskStateSegment;
+use memory::MemoryController;
+
+lazy_static! {
+    static ref IDT: Idt = {
+        let mut idt = Idt::new();
+        idt.breakpoint.set_handler_fn(breakpoint_handler);
+        idt.double_fault.set_handler_fn(double_fault_handler);
+        idt
+    };
+}
+
+const DOUBLE_FAULT_IST_INDEX: usize = 0;
+
+pub fn init(memory_controller: &mut MemoryController) {
+    let double_fault_stack = memory_controller.alloc_stack(1)
+        .expect("could not allocate double fault stack");
+
+    let mut tss = TaskStateSegment::new();
+    tss.interrupt_stack_table[DOUBLE_FAULT_IST_INDEX] = VirtualAddress(
+        double_fault_stack.top());
+
+    IDT.load();
+}
+
+extern "x86-interrupt" fn breakpoint_handler(
+    stack_frame: &mut ExceptionStackFrame)
+{
+    println!("EXCEPTION: BREAKPOINT\n{:#?}", stack_frame);
+}
+
+extern "x86-interrupt" fn double_fault_handler(
+    stack_frame: &mut ExceptionStackFrame, _error_code: u64)
+{
+    println!("\nEXCEPTION: DOUBLE FAULT\n{:#?}", stack_frame);
+    loop {}
+}