[{"id":3679482,"web_url":"http://patchwork.ozlabs.org/comment/3679482/","msgid":"","list_archive_url":null,"date":"2026-04-20T17:02:09","subject":"Re: [PATCH v14 3/8] qapi: add local migration parameter","submitter":{"id":67717,"url":"http://patchwork.ozlabs.org/api/people/67717/","name":"Peter Xu","email":"peterx@redhat.com"},"content":"On Mon, Apr 20, 2026 at 07:19:53PM +0300, Vladimir Sementsov-Ogievskiy wrote:\n> We are going to implement local-migration feature: some devices will be\n> able to transfer open file descriptors through migration stream (which\n> must UNIX domain socket for that purpose). This allows to transfer the\n> whole backend state without reconnecting and restarting the backend\n> service. For example, virtio-net will migrate its attached TAP netdev,\n> together with its connected file descriptors.\n> \n> In this commit we introduce a migration parameter, which enables\n> the feature for devices that support it (none at the moment).\n> \n> Signed-off-by: Vladimir Sementsov-Ogievskiy \n> Acked-by: Markus Armbruster \n\nAcked-by: Peter Xu ","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=f4mb+EmO;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=google header.b=AgZKgW/O;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fzsHP4NkGz1yCv\n\tfor ; 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