On Sun, Feb 09, 2020 at 12:43:35PM -0500, Raphael Norwitz wrote: > > > The current feature implementation does not work with postcopy migration > > > and cannot be enabled if the VHOST_USER_PROTOCOL_F_REPLY_ACK feature has > > > also been negotiated. > > > > Hmm what would it take to lift the restrictions? > > conflicting features like this makes is very hard for users to make > > an informed choice what to support. > > > > We would need a setup with a backend which supports these features (REPLY_ACK > and postcopy migration). At first glance it looks like DPDK could work but > I'm not sure how easy it will be to test postcopy migration with the resources > we have.
Yes, DPDK works with postcopy. I understand it's of no immediate interest to you but I'm afraid it just becomes too messy if everyone keeps breaking it. VHOST_USER_PROTOCOL_F_REPLY_ACK was added by a contributor from nutanix, surely you can ping them internally for a test-case :). -- MST
