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Tsirkin" , Markus Armbruster , Eric Blake , "Maciej S. Szmigiero" , Jason Wang , Ben Chaney , Vladimir Sementsov-Ogievskiy Subject: Re: [PATCH RFC 0/2] migration/vl: new -incoming config:* for early migration parameters In-Reply-To: <10e159ec-3ead-4297-a24a-8e6f6029afb6@nutanix.com> References: <20260528212947.368132-1-peterx@redhat.com> <87se7btcq9.fsf@suse.de> <10e159ec-3ead-4297-a24a-8e6f6029afb6@nutanix.com> Date: Wed, 03 Jun 2026 14:32:51 -0300 Message-ID: <87qzmn7cn0.fsf@suse.de> MIME-Version: 1.0 Content-Type: text/plain X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[99.99%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; MISSING_XM_UA(0.00)[]; RCVD_TLS_ALL(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCPT_COUNT_TWELVE(0.00)[12]; FUZZY_RATELIMITED(0.00)[rspamd.com]; MID_RHS_MATCH_FROM(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,suse.de:mid] Received-SPF: pass client-ip=2a07:de40:b251:101:10:150:64:1; envelope-from=farosas@suse.de; helo=smtp-out1.suse.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, SPF_HELO_NONE=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 Mark Cave-Ayland writes: > On 29/05/2026 15:15, Peter Xu wrote: > > (cut) > >>> I like the idea overall. >>> >>>> With this series, we should be able to drop "incoming-fds" TAP property >>>> from the other series, instead relying on the existing "local" parameters >>>> both in migration core and in TAP's property should suffice. >>>> >>>> One thing to mention is I didn't further make only-migratable into a >>>> migration parameter. Logically it will also work now with only-migratable, >>>> but it then also means I'll need to convert it to a parameter, which will >>>> be mutable even after VM started. It will change how only-migratable used >>>> to work, hence I skipped. >>>> >>>> After this, we also almost have no reason to use -global for migration >>>> parameters. Capabilities are still not supported in -incoming cmdline, >>>> though. >>>> >>> >>> Will we still merge capabilities and parameters? Then it would be a free >>> upgrade. >> >> Yes! /me waiting for your patches. > > Is this related to the series posted at > https://patchew.org/QEMU/20251215220041.12657-1-farosas@suse.de/? What's > the current status with this work? > Yes, the plan is still to merge parameters and capabilities into a single 'options' term. This is largely about internal abstractions. I plan to get back to that part of the work as soon as I find some cycles. The further changes involving deprecations and adding the 'config' parameter to migration commands have encountered some push-back, so I don't think we'll get back to them at least before the above is all finished. I still think those changes are worthwhile, but we need to find consensus. > > ATB, > > Mark.