On Wed, Nov 01, 2023 at 01:50:00PM +0900, Akihiko Odaki wrote: > We had another discussion regarding migration for patch "virtio-net: Do not > clear VIRTIO_NET_F_HASH_REPORT". It does change the runtime behavior so we > need to take migration into account. I still think the patch does not > require a compatibility flag since it only exposes a new feature and does > not prevent migrating from old QEMU that exposes less features. It instead > fixes the case where migrating between hosts with different tap feature > sets.
When in doubt, add a compat flag. -- MST
