From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B573AC77B7D for ; Mon, 15 May 2023 08:33:16 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pyTd2-0004U7-GN; Mon, 15 May 2023 04:32:25 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pyTco-00048K-Sm for qemu-devel@nongnu.org; Mon, 15 May 2023 04:32:17 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pyTcm-0002Kv-KA for qemu-devel@nongnu.org; Mon, 15 May 2023 04:32:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1684139526; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=IYWGKhtKwLFcuFUzm0dfGbM4KWDYTExWa/UJtHJsPg0=; b=Il87+ngkhrSLZEAlXkf2zE/ogTQP2kii25lHdfsIzlMJXBGHCYB1Rt9lxgLDcWqh6BvaHQ eG1RuYD/qa363MJHDQhQBbUG6IvsD10FehWHMIu29C4edzOW/Jx11OxLgXvPXv18BLKHxc 8XLKE+DTF8fUt0S03BbsQ2t5yWJAlBA= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-142-SJPvb-bQPBqOSqgXUzejIg-1; Mon, 15 May 2023 04:32:04 -0400 X-MC-Unique: SJPvb-bQPBqOSqgXUzejIg-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7572388B771; Mon, 15 May 2023 08:32:04 +0000 (UTC) Received: from secure.mitica (unknown [10.39.194.171]) by smtp.corp.redhat.com (Postfix) with ESMTP id 906B240F06B; Mon, 15 May 2023 08:32:02 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: "Michael S . Tsirkin" , Leonardo Bras , Peter Xu , Jiri Denemark , Avihai Horon , Juan Quintela , Fiona Ebner , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= Subject: [PATCH v3 0/3] Migration documentation Date: Mon, 15 May 2023 10:31:58 +0200 Message-Id: <20230515083201.55060-1-quintela@redhat.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Received-SPF: pass client-ip=170.10.133.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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, DKIMWL_WL_HIGH=-0.001, 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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: 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 Hi Continuing on my saga to not have a pointer about how migration works/should work, this are the doc for the long mails that I had to do last week: 1 - Document how backwards compatibility is supposed to work (that is what it was on v1 and v2) 2 - Document how to handle features that depend of things outside of qemu a.k.a. we make this a libvirt/management app problem. 3 - Document how we are supposed to fix backwards compatibility brokenness. You can see that I was able to find commits on tree to illustrate 1 and 3. The problem for 2 appeared from a discussion with Avihai about future vfio devices. Do anyone have a good idea about a commit already on tree to document it? Please review. Later, Juan. Juan Quintela (3): migration: Add documentation for backwards compatiblity migration/docs: How to migrate when hosts have different features migration/doc: We broke backwards compatibility docs/devel/migration.rst | 503 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 503 insertions(+) -- 2.40.1