--- security: - | The 'AMD-SSBD' and 'AMD-NO-SSB' flags have been added to the list of available choices for the ``[libvirt]/cpu_model_extra_flags`` config option. These are important for proper mitigation of security issues in AMD CPUs. For more information see https://www.redhat.com/archives/libvir-list/2018-June/msg01111.html