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Szmigiero" Subject: Re: [PATCH v4 0/1] hw/hyperv/vmbus: Is it maintained? Message-ID: References: <20211106134155.582312-1-philmd@redhat.com> <54b75db4-8867-d1ee-e32c-bc3e4c23ec28@virtuozzo.com> <8caa5fb3-df36-d763-e07b-8fe1667ed7c9@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <8caa5fb3-df36-d763-e07b-8fe1667ed7c9@oracle.com> X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::434 (failed) Received-SPF: pass client-ip=2a00:1450:4864:20::434; envelope-from=arilou@gmail.com; helo=mail-wr1-x434.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vladimir Sementsov-Ogievskiy , qemu-trivial@nongnu.org, qemu-devel@nongnu.org, Roman Kagan , "Denis V. Lunev" , Paolo Bonzini , Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 13/11/2021, Maciej S. Szmigiero wrote: >On 12.11.2021 21:39, Roman Kagan wrote: >>On Fri, Nov 12, 2021 at 09:32:31PM +0300, Vladimir Sementsov-Ogievskiy wrote: >>>Add Den and Roman (his new address) >> >>Thanks, I missed it on the list indeed. >> >>>06.11.2021 16:41, Philippe Mathieu-Daudé wrote: >>>>This is the 4th time I send this patch. Is the VMBus infrastructure >>>>used / maintained? Should we deprecate & remove? >> >>I think it's fair to say it's not maintained. The whole >>hw/hyperv/vmbus.c was submitted as a part of the work by Jon to enable >>some obscure windows debugging feature which only worked in presence of >>VMBus. It was mostly taken from the respective branch of the (now >>effectively abandoned) downstream tree with an implementation of the >>core VMBus infrastructure and the devices using it; however, none of the >>actual VMBus devices ever made it into the mainline tree. >> > >The VMBus code works fine, is mostly self-contained and by being a part >of the upstream QEMU it does benefit from any improvements done there and >so it is much less likely to bit-rot with time. > >I am still committed to upstreaming a Hyper-V Dynamic Memory Protocol >driver (which uses VMBus), however had been preempted by higher-priority >work for now. > >Thanks, >Maciej Hi guys, Sorry for the late reply, like Roman I also never got to submit the RFC for the Synth debugger device which requires the VMBus, I do hope to get to it at some point and VMBus is a required part for it. In the last year or so I have not had much time to spend on this but I do hope to get back to finishing what I have started. I'm not really sure I have the time or knowledge to maintain VMBus :( but I'll do my best to answer any questions as well. -- Jon.