You want to expose a flag present on the physical CPU to the virtual machines running on the host.
- Platform9 Managed OpenStack - All versions
- Update the Nova configuration file locate at /opt/pf9/etc/nova/conf.d/nova_override.conf and make sure the following option is set within the [libvirt] stanza.
[pf9@lab01~]$ cat /opt/pf9/etc/nova/conf.d/nova_override.conf
- Once the file has been modified, restart the pf9-ostackhost service by running the following command.
# sudo systemctl restart pf9-ostackhost
- Hard reboot the VMs where you want to see the additional flags by running the following command.
# openstack server reboot --hard <Instance_UUID>
host-model is a safe choice if your compute node CPUs are largely identical. However, if your compute nodes span multiple processor generations, you may be better advised to select a
custom CPU model.