From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:56896) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TQfT5-00037G-JB for qemu-devel@nongnu.org; Tue, 23 Oct 2012 10:28:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TQfSz-0007No-Mg for qemu-devel@nongnu.org; Tue, 23 Oct 2012 10:28:31 -0400 Received: from mail-ob0-f173.google.com ([209.85.214.173]:48794) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TQfSz-0007NQ-He for qemu-devel@nongnu.org; Tue, 23 Oct 2012 10:28:25 -0400 Received: by mail-ob0-f173.google.com with SMTP id wc18so3445324obb.4 for ; Tue, 23 Oct 2012 07:28:22 -0700 (PDT) From: Anthony Liguori In-Reply-To: <50869675.2010204@redhat.com> References: <508549EA.4050603@redhat.com> <50864130.6040103@redhat.com> <5086582C.4020804@redhat.com> <874nllfj7v.fsf@codemonkey.ws> <50869675.2010204@redhat.com> Date: Tue, 23 Oct 2012 09:28:10 -0500 Message-ID: <87boftw9dx.fsf@codemonkey.ws> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: Re: [Qemu-devel] qemu <-> libvirt interaction broken List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Eric Blake Cc: Peter Maydell , Gerd Hoffmann , Aurelien Jarno , "qemu-devel@nongnu.org" Eric Blake writes: > On 10/23/2012 06:47 AM, Anthony Liguori wrote: > >>>> >>>> This change was postponed to after 1.2 was released to >>>> give libvirt a chance to wean itself off parsing our --help >>>> output. >>> >>> Yea, I know this has been the plan for a long time and I agree that it >>> is a good move. >>> >>> Only problem is that the switch didn't happen yet. The bits might be >>> landed in libvirt/master, but there is no release with this yet and thus >>> libvirt versions using QOM for feature detection didn't find the way yet >>> into distributions. >>> >>> IMO it is a bit early to stop caring about -help output compatibility in >>> qemu. >> >> It was announced. There's been plenty of time to adapt. >> >> If you're using QEMU from git, it's reasonable to require libvirt from >> git IMHO. > > Agreed. > > That said, distros can ease the pain by backporting the libvirt patches > for starting qemu from QMP rather than -help into current libvirt > releases, although that becomes a matter for distros rather than this list. > >> >> By the time 1.3 goes out, there should be a libvirt release with the >> necessary support so if your using distro packages, you'll never notice. > > Libvirt 1.0.0 will land in early November, and fully supports qemu.git, > so you are correct that a released libvirt will be available prior to > qemu 1.3: > https://www.redhat.com/archives/libvir-list/2012-October/msg00403.html > Additionally, there will probably be a release candidate in the next 48 > hours, where you can use that tarball (rawhide will most certainly pick > it up), so the pain of using libvirt.git to develop qemu.git will not > last much longer. Excellent, thanks Eric! Regards, Anthony Liguori > > -- > Eric Blake eblake@redhat.com +1-919-301-3266 > Libvirt virtualization library http://libvirt.org