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[80.230.25.45]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45ef32fabcasm24599676f8f.0.2026.06.01.06.11.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Jun 2026 06:11:24 -0700 (PDT) Date: Mon, 1 Jun 2026 09:11:21 -0400 From: "Michael S. Tsirkin" To: Albert Esteve Cc: Alex =?iso-8859-1?Q?Benn=E9e?= , qemu-devel , virtio-comment@lists.linux.dev, dev@lists.cloudhypervisor.org, rust-vmm@lists.opendev.org, Stefano Garzarella , Manos Pitsidianakis , Demi Marie Obenour , Alyssa Ross , Mark Burton , Matti Moell , Stefan Hajnoczi , Viresh Kumar , Dorinda Bassey , Sergio Lopez , Vishwanath Seshagiri , Rob Bradford , Zhengyu Zhao , "Jorge E. Moreira" Subject: Re: Where should the vhost-user specification live? Message-ID: <20260601090953-mutt-send-email-mst@kernel.org> References: <874ijtz038.fsf@draig.linaro.org> <20260601083628-mutt-send-email-mst@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Received-SPF: pass client-ip=170.10.129.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.445, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Mon, Jun 01, 2026 at 03:05:50PM +0200, Albert Esteve wrote: > On Mon, Jun 1, 2026 at 2:39 PM Michael S. Tsirkin wrote: > > > > On Mon, Jun 01, 2026 at 02:32:11PM +0200, Albert Esteve wrote: > > > But also because, in my opinion, separating > > > the specification would improve development agility by decoupling > > > specification development from QEMU's review and release cycles. > > > > Generally for QEMU this will be less agility, unless I misunderstand > > what is proposed) > > > > Because presumably there will need to be spec releases then? > > > > So > > new feature -> spec tree -> spec release -> qemu implementation -> qemu release > > > > is surely longer that what we have now. > > I see your point. > > However, we do not really need to introduce a heavy release management > layer. We could just operate it as a living document, where the main > branch is the authoritative source of truth. > > For the workflow, development doesn't have to be strictly sequential > either. A contributor can propose the spec update while working on the > implementation, much like we do for VirtIO updates. Actually, this way > one update/change supports the other. > > I guess my point is that a dedicated repository could lower the > barrier for new changes AND keep QEMU's own development speed mostly > unaffected. > > BR, > Albert Something something submodule? Possibly. If you want to make progress on this, pls think of the process, try it out. > > > > Whether there will be more agility for non qemu users will depend on > > how often spec releases are cut. > > > > > > > > -- > > MST > >