[Dropping random people from Cc] On Wed, May 30, 2018 at 18:00:56 +0800, Dou Liyang wrote: > Hi All, > > I am not sure about the update strategy of CPU models in libvirt. > > IMO, It's depend on the CPU model in qemu-kvm, if some CPU models > were updated in qemu-kvm. Then, we should modify the src/cpu/cpu_map.xml > of libvirt to synchronize? No, we never change existing CPU models in cpu_map.xml to make sure the same CPU model is the same across libvirt versions. Not to mention that QEMU only changes existing CPU models for new machine type (for the same compatibility reason) so we can't just change our CPU models since we don't know what machine type their going to be used with. Libvirt will handle the differences in runtime by remembering any additionally enabled or disabled features once domain starts to make sure the exact same CPU is recreated after, e.g., migration. Jirka -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
