I'm initially targeting 32-bit, though obviously I'd like something that works for both 32 and 64 bit. irq_cfg[] is missing in io_apic_32.c; would I achieve the same effect by setting irq_vector[irq] = 0xff or something?
ok, here comes the next phase of a rather cunning plan: please unify these vector allocators first! ;-)
it's nontrivial but would result in rather nice code. I dont know whether we want to extend per-CPU vectors to 32-bit as well ... but might be worth an attempt and we could give any exploratory patches a try in -tip. Eric, what do you think about the general approach?
this would also pave the way towards unified APIC code. Hm