Comment 2 for bug 1561019

Hi,
if no cpu model is set the default is qemu64 which is rather conservative for
- maximum migratability
- guaranteeing the same feature set will be available wherever you start your KVM

But I thought svm/vmx would be part of that set.

A short test at least on Xenial proved my assumption that for me that is
flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm rep_good nopl pni vmx cx16 x2apic popcnt hypervisor lahf_lm abm tpr_shadow vnmi flexpriority ept vpid
Which contains vmx and kvm-ok is happy.

Could you provide a "cat /proc/cpuinfo" of host and guest as well as the full commandline that libvirt generated for you?