Messages in this thread | | | Date | Mon, 11 Jun 2012 13:21:40 +0300 | From | "Michael S. Tsirkin" <> | Subject | Re: [PATCH] KVM: Use IRQF_ONESHOT for assigned device MSI interrupts |
| |
On Mon, Jun 11, 2012 at 01:01:41PM +0300, Avi Kivity wrote: > On 06/08/2012 05:50 PM, Jan Kiszka wrote: > > > >> > >> Pls correct me if I'm wrong. > > > > Well, IIRC, the "don't loop over all vcpus with IRQs or preemption > > disabled" was one argument against direct legacy interrupt injection as > > well. That's what I kept in mind from those discussions. Maybe Avi can > > comment on the current position. > > It's still my position. > > IMO we need something like struct gfn_to_hva_cache for interrupts. If > it's in the cache, we fast-path it from the interrupt handler. If not, > fall back to a workqueue and let it refill the cache.
And you class the irqfd behaviour of injecting multicast with interrupts disabled a bug then?
> -- > error compiling committee.c: too many arguments to function
| |