Re: [libvirt] [RFC PATCH v2 3/3] qemu: memory pre-pinning support for RDMA migration

> > > > I'm still not seeing what's wrong with depending on the version > > number since other features are also depending on the version > > number. Every feature where we have to guess based on version number is due to a bug in qemu for not providing enough information for libvirt to probe for the feature's existence. We hate those features, and I have been lobbying hard on the qemu list that all NEW features should be discoverable. rdma is one such feature - I recall you making changes in your series there so that it is discoverable in response to my early review comments - so now please USE that methodology from libvirt.