On Sun, 2012-06-24 at 15:56 +0300, Avi Kivity wrote: > On 06/23/2012 01:16 AM, Alex Williamson wrote: > > I think we're probably also going to need something like this. > > When running in non-accelerated qemu, we're going to have to > > create some kind of EOI notifier for drivers. VFIO can make > > additional improvements when running on KVM so it will probably > > make use of the KVM_IRQFD_LEVEL_EOI interface, but we don't > > want to have a generic EOI notifier in qemu that just stops > > working when kvm-ioapic is enabled. > > Why?
Hmm, I must be missing something or not describing it correctly, because it seems obvious. If we create a dependency in qemu of needing to know when an eoi occurs and notifier a driver and have no way to fulfill that dependency when running on kvm... that'd be bad, right? I don't want to assume that every consumer of such an interface would prefer to make use of an irqfd. Not sure if that answers your question though. Thanks, Alex -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
