Re: [Qemu-devel] [PATCH 2/2] Route IOAPIC interrupts via ISA bus

[Gleb Natapov]

On Wed, Aug 26, 2009 at 06:30:54PM +0200, Gerd Hoffmann wrote:
> On 08/26/09 18:06, Avi Kivity wrote:
> >On 08/26/2009 07:03 PM, Gerd Hoffmann wrote:
> >>Now we probably need some acpi magic to tell the guest OS that there
> >>are a few more IRQ lines?
> >
> >I wanted to route the PCI IRQs to those lines (and have eight links
> >instead of four).
> 
> Right now we have IRQs 5,10,11 for PCI.  Having one more IRQ (so we
> have one for each link) would be useful IMHO.  eight links + eight
> irqs would be even more useful.  What needs to be done for that?
> 
Current code uses piix3 irq router to route pci interrupts to pic _and_
ioapic and piix3 irq router supports only 16 interrupts.

--
                        Gleb.