On Tuesday 07 September 2010 16:15:05 Avi Kivity wrote: > On 09/07/2010 10:22 AM, Hao, Xudong wrote: > >> I never assigned a pci device in my life... > > > > Avi, I assumed your platform has no EPT hardware feature, right? > > Correct. > > > I tried sevral platforms, if I used no EPT suported machine, everything > > is OK as yours; if I used EPT supported machine, and then disable EPT > > with "modprobe kvm_intel ept=0", then issue happen. > > That's what I thought - probably vpid+shadow interaction. I'll test it > out. > > I usually test on an old machine since shadow is much more stressful > than ept. But shadow+vpid is even more stressful, I'll move my testing > there. BTW: the bad commit is: c94c3ba901f87115cf574044e7faabfb1d0251fb "KVM: Don't save/restore MSR_IA32_PERF_STATUS", but I haven't figured out the reason yet. -- 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
