Hi Vladimir >From the QE perspective, this series of patches cause a regression issues for multi queues: [qemu output] qemu-system-x86_64: -netdev ..."vhostfds": "20:21:22:23", "fds": "10:16:17:19" : vhostfds= is invalid if fds= wasn't specified
Thanks Lei On Tue, Aug 19, 2025 at 4:42 PM Vladimir Sementsov-Ogievskiy < vsement...@yandex-team.ru> wrote: > On 19.08.25 05:45, Jason Wang wrote: > > On Mon, Aug 18, 2025 at 10:06 PM Vladimir Sementsov-Ogievskiy > > <vsement...@yandex-team.ru> wrote: > >> > >> Hi all! > >> > >> As preparation for further development of TAP live local migration > >> (passing open fds through unix socket), > > > > I'm not sure I understand this, but I think it has been supported now, > > or anything I miss? > > > > Hmm, may be I missing something, but where? > > I see no code which put TAP fd into migration channel. Nothing about > migration in tap.c at all. > > So, normally, to make local migration with TAP device, you have to create > a new TAP for new QEMU > process. > > I want to add a migration state, which will include needed part of > TAPState, including fd, > to continue using same TAP device in target process, avoiding also any > initialization steps > on that fd. > > -- > Best regards, > Vladimir > >
