On Wed, 8 Feb 2023 at 10:58, Hanna Czenczek <hre...@redhat.com> wrote: > > On 08.02.23 15:32, Stefan Hajnoczi wrote: > > On Tue, 7 Feb 2023 at 07:29, Stefan Hajnoczi <stefa...@gmail.com> wrote: > >> On Tue, 7 Feb 2023 at 04:08, Hanna Czenczek <hre...@redhat.com> wrote: > >>> On 06.02.23 17:27, Stefan Hajnoczi wrote: > >>>> On Mon, 6 Feb 2023 at 07:36, Hanna Czenczek <hre...@redhat.com> wrote: > >>>> Should we schedule a call with Jason, Michael, Juan, David, etc to > >>>> discuss further? That way there's less chance of spending weeks > >>>> working on something only to be asked to change the approach later. > >>> Sure, sounds good! I’ve taken a look into what state we’ll need to > >>> migrate already, but I’ll take a more detailed look now so that it’s > >>> clear what our requirements are. > > Hi Hanna, > > The next step is getting agreement on how the vhost-user device state > > interface will work. Do you want to draft the new vhost-user protocol > > messages and put together slides for discussion with Michael, Jason, > > Juan, and David in the next KVM call? That might be the best way to > > get agreement. Doing it via email is possible too but I guess it will > > take longer. > > > > If you don't want to design the vhost-user protocol changes yourself > > then someone on this email thread can help with that. > > I’ll need to talk about the whole thing to Stefano and German first > (we’re collaborating on virtio-fs migration, looking at different > aspects of it). Also, I think I’ll want to look into the code a bit > first and fiddle around to get a working prototype so I get an idea of > what might be feasible at all. I wouldn’t want to propose something > that actually can’t work when I try to make it work in practice. O:)
Okay. The specifics of the virtiofs device state don't need much discussion here. Only the vhost-user protocol changes need agreement because they are generic infrastructure that will affect other vhost-user device types, vDPA, and probably core VIRTIO. So don't worry about defining what each piece of virtiofs state needs to be at this point, I guess you only need a rough idea in order to come up with the vhost-user protocol changes. Stefan
