On Thu, Oct 12, 2017 at 18:22:54 -0400, John Ferlan wrote: > > > On 10/04/2017 10:58 AM, Jiri Denemark wrote: > > xsaves is supported by current QEMU/KVM on this CPU. > > Current as of when? Good question. The QEMU version (unknown) used to generate the original test data did not enable xsaves on the host while the version (also unknown) used to regenerate them enabled this feature. It's also possible the host is actually not exactly the same even though it has the same CPU model. I'm not sure if any configuration can influence availability of xsaves for guests. Perhaps I could have used different words in the commit message... > Does this cause migration issues to have one version support and > another not? What about save/restore type operations? It should cause any trouble. This is the point of all the code and these tests after all. When starting a domain we record what features were or were not really enabled in the virtual CPU and record this in domain XML so that we can ask for exactly the same CPU configuration during migration, restore, or snapshot revert. Jirka -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
