Today news have reached me about specter (https://access.redhat.com/security/cve/cve-2018-3639). I'm running CentOS and kvm infrastructure. Fix is critical and planning to deploy it in few days. I have running kvm VMs and in link is mentioned that VM complete shutdown and start is required. My question is that if I migrate VM from one KVM host (not updated) to another (updated) will it be enough? VMs are critical and complete shutdown and start circle is not a bets option.
Do you know something about that? Do you know how to test it if this enough? Please, share your knowledge