diff options
| -rw-r--r-- | i386/i386/apic.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/i386/i386/apic.c b/i386/i386/apic.c index ff7ba3e2..c399074d 100644 --- a/i386/i386/apic.c +++ b/i386/i386/apic.c @@ -27,7 +27,13 @@ #include <kern/kalloc.h> -volatile ApicLocalUnit* lapic = NULL; +/* + * This dummy structure is needed so that CPU_NUMBER can be called + * before the lapic pointer is initialized to point to the real Local Apic. + * It causes the apic_id to be faked as 0, which is the master processor. + */ +static ApicLocalUnit dummy_lapic = {0}; +volatile ApicLocalUnit* lapic = &dummy_lapic; ApicInfo apic_data; |