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| author | Damien Zammit <damien@zamaudio.com> | 2021-04-04 15:08:12 +1000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2021-04-04 16:27:17 +0200 |
| commit | 214866d58ac2bd1060132b250bf391a495110015 (patch) | |
| tree | faa4509549a8d4b580b4b52e00162efd30d3f480 /i386/i386at/idt.h | |
| parent | 71db59f69602e54c33ba707c8e4a7a66f6c9ca0b (diff) | |
| download | gnumach-214866d58ac2bd1060132b250bf391a495110015.tar.gz gnumach-214866d58ac2bd1060132b250bf391a495110015.tar.bz2 gnumach-214866d58ac2bd1060132b250bf391a495110015.zip | |
Add ioapic support disabled by default
Use --enable-ncpus=x --enable-apic where x > 1 for SMP+APIC support.
Use neither for no SMP and old PIC support.
Message-Id: <20210404050812.145483-1-damien@zamaudio.com>
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__ |