On Fri, Mar 20, 2020 at 11:30:16AM -0400, Konrad Rzeszutek Wilk wrote: > On Thu, Mar 19, 2020 at 09:01:17AM +0100, Gerd Hoffmann wrote: > > With ACPI enabled and IO-APIC being properly declared in the ACPI tables > > we can use interrupt lines 16-23 for virtio and avoid shared interrupts. > > 7 interrupt lines? Is there a specific requirements of which > ones should be assigned to what device?
8 lines (23 is inclusive), one for each virtio device. It wouldn't give you separate config change or per-queue interrupts (I think virtio-mmio doesn't support that). It only avoids sharing interrupts with legacy pc devices like rtc and acpi. cheers, Gerd
