On Wednesday 14 April 2010 18:33:37 Avi Kivity wrote: > On 04/14/2010 01:27 PM, Sheng Yang wrote: > >> Yes, interesting to see what the latency is. If it's reasonably short > >> (and I expect it will be so), we can do the busy wait solution. > >> > >> If we have an NMI counter somewhere, we can simply wait until it > >> changes. > > > > Good idea. Of course we have one(at least on x86). There is > > irq_stat.irq__nmi_count for per cpu. :) > > Okay, but kvm doesn't want to know about it. How about a new arch > function, invoke_nmi_sync(), that will trigger the NMI and wait for it? > Sound reasonable. Would try it. -- regards Yang, Sheng -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html