2016-04-28 08:54+0200, Jan Kiszka: > On 2016-04-28 03:11, Yang Zhang wrote: >> On 2016/4/27 17:45, Jan Kiszka wrote: >>> On 2016-04-27 11:39, Yang Zhang wrote: >>>> I mean in Tianyu's case, if he doesn't care about to deliver external >>>> interrupt to CPU >255, IR is not required. >>> >>> What matters is the guest OS. See my other reply on this why this >>> doesn't work, even for Linux. >> >> Since there only few devices in his case, set the irq affinity manually >> is enough. You could configure non-IPIs to work, but we want to create options that are hard to break. > Ah, wait - are we talking about emulating the Xeon Phi architecture in > QEMU, accelerated by KVM? Knights Landing will also be manufactured as a CPU, hopefully without many peculiarities. I think we are talking about extending KVM's IR-less x2APIC, when standard x2APIC is the future. -- 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