diff options
Diffstat (limited to 'i386/i386at/idt.h')
| -rw-r--r-- | i386/i386at/idt.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/i386/i386at/idt.h b/i386/i386at/idt.h index fd2f62d8..ac065aef 100644 --- a/i386/i386at/idt.h +++ b/i386/i386at/idt.h @@ -24,12 +24,19 @@ #ifndef _I386AT_IDT_ #define _I386AT_IDT_ -/* On a standard PC, we only need 16 interrupt vectors, - because that's all the PIC hardware supports. */ -#define IDTSZ (0x20+0x10) +/* There are 256 interrupt vectors on x86, + * the first 32 are taken by cpu faults */ +#define IDTSZ (0x100) +/* PIC sits at 0x20-0x2f */ #define PIC_INT_BASE 0x20 +/* IOAPIC sits at 0x30-0x47 */ +#define IOAPIC_INT_BASE 0x30 + +/* IOAPIC spurious interrupt vector set to 0xff */ +#define IOAPIC_SPURIOUS_BASE 0xff + #include <i386/idt-gen.h> #ifndef __ASSEMBLER__ |