On Tue, May 17, 2016 at 08:45:37 +0000, Qiao, Liyong wrote: > Hi Jirka > Thanks for your comments,, the qemu patch is on the way, check > https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg03951.html Right, once the CPU model is added to QEMU, we'll update our CPU map too. > Even we cann't use qemu to boot a Skylake cpu virtual machine, but if > we specify in host mode, we still can Yes, but you can do that even if libvirt does not report the host CPU as Skylake. > And besides, the follow cpu feature has already in qemu tree. > > + <!-- XSAVE CPUID[EAX=0xd,ECX=1].EAX --> > + <feature name='xsaveopt'> > + <cpuid function='0xd' eax='0x00000001'/> > + </feature> > + <feature name='xsavec'> > + <cpuid function='0xd' eax='0x00000002'/> > + </feature> > + <feature name='xgetbv1'> > + <cpuid function='0xd' eax='0x00000004'/> > + </feature> > + <feature name='xsaves' migratable='no'> > + <cpuid function='0xd' eax='0x00000008'/> > + </feature> Yes, these features could be added even now, although this patch is not enough. I'll take care of adding the features to libvirt. Jirka -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list