jacob jacob <opstkusr@xxxxxxxxx> writes: > On Thu, Mar 12, 2015 at 3:07 PM, Bandan Das <bsd@xxxxxxxxxx> wrote: >> jacob jacob <opstkusr@xxxxxxxxx> writes: >> >>> Hi, >>> >>> Seeing failures when trying to do PCI passthrough of Intel XL710 40G >>> interface to KVM vm. >>> 0a:00.1 Ethernet controller: Intel Corporation Ethernet >>> Controller XL710 for 40GbE QSFP+ (rev 01) >> >> You are assigning the PF right ? Does assigning VFs work or it's >> the same behavior ? > > Yes.Assigning VFs worked ok.But this had other issues while bringing down VMs. > Interested in finding out if PCI passthrough of 40G intel XL710 > interface is qualified in some specific kernel/kvm release. So, it could be the i40e driver then ? Because IIUC, VFs use a separate driver. Just to rule out the possibility that there might be some driver fixes that could help with this, it might be a good idea to try a 3.19 or later upstream kernel. >>> From dmesg on host: >>> >>>> [80326.559674] kvm: zapping shadow pages for mmio generation wraparound >>>> [80327.271191] kvm [175994]: vcpu0 unhandled rdmsr: 0x1c9 >>>> [80327.271689] kvm [175994]: vcpu0 unhandled rdmsr: 0x1a6 >>>> [80327.272201] kvm [175994]: vcpu0 unhandled rdmsr: 0x1a7 >>>> [80327.272681] kvm [175994]: vcpu0 unhandled rdmsr: 0x3f6 >>>> [80327.376186] kvm [175994]: vcpu0 unhandled rdmsr: 0x606 >> >> These are harmless and are related to unimplemented PMU msrs, >> not VFIO. >> >> Bandan > -- > 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 -- 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
