I've saw odd thing yesterday. In my OpenStack cluster i'm using 3 models of CPUs: Intels E3-1230 v2, E3-1241 v3 and E5-2620 v4.
I'm wondering why only on E3-1230 v2 VMs see more detailed information about hypervisor's CPU?
ON all hypervisors I've the same nova.conf with cpu_mode=host-model? Which CPU feature is responsible for this? Is there any easy way to hide processor model inside VM?