One thing I notice is that the libvirt xml from EPYC at /usr/share/libvirt/cpu_map/x86_EPYC-Rome.xml ofc is not updated but also a new one for using -v4 is not rendered.
That means I can't instruct nova to use EPYC-Rome-v4 with # grep -i epyc /etc/nova/nova.conf cpu_model = EPYC-Rome-v4 because nova will stop working with error 2024-04-16 07:30:04.939 4168598 ERROR oslo_service.service nova.exception.InvalidCPUInfo: Configured CPU model: EPYC-Rome-v4 is not correct, or your host CPU arch does not support this model. Please correct your config and try again. Do we need a patch for libvirt as well to have this working? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2048517 Title: EPYC-Rome model without XSAVES may break live migration since the removal of the flag on the physical CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/2048517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
