idt: add interruption handling

The Interruption Descriptor Table (IDT) is implemented in idt.{c,h} as
part of the core, but the setup and activation of the IDT and the
registration of specific interruption request handlers is part of
arch.{c,h}.  The request handlers are implemented in idt.s and
delegate to kernel_handle_interrupt.

1 files changed, 12 insertions, 3 deletions

diff --git a/core/kernel.c b/core/kernel.c
index c159aef..098db12 100644
--- a/core/kernel.c
+++ b/core/kernel.c
@@ -12,24 +12,33 @@
  * more details.
  */
 
+#include <garmos/idt.h>
 #include <garmos/gdt.h>
 #include <garmos/kernel.h>
 #include <garmos/term.h>
 #include <garmos/types.h>
 
-
 void ker_dbg(char *s)
 {
 	term_print(s);
 	term_print("\n");
 }
 
+uint32_t kernel_handle_interrupt(uint8_t no, uint32_t esp)
+{
+	return esp;
+}
+
 void kernel_main(uint32_t multiboot, unsigned int *magicno)
 {
+	term_clear();
+
 	gdt_init();
+	idt_init();
+
+	idt_activate();
 
-	term_clear();
 	term_print("garmos 0.1.0\n\n");
 
-	while(1);
+	while (1);
 }