Page 1 of 1
APIC with external hardware interrupts
Posted: Sat Jan 10, 2015 9:02 pm
by digo_rp
Hi all, I folowed wiki about apic/timer and everhing goes right. but I´m trying to learn from intel how to use external hardware interrupts to me apic. and I can´t find out a good start with a kinda of an simple example. could anyone help pe please?
tnx a lot
Re: APIC with external hardware interrupts
Posted: Sun Jan 11, 2015 10:51 am
by dansmahajan
External hardware interrupts work the same like they do in case of the PIC,they wont feel the difference. So to work with APIC first you have to setup the IOAPIC, external interrupts are delivered to IOAPIC first and then depending upon the IOAPIC's IRQ delivery configuration/table they will be routed to the corresponding LAPIC(s).