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 X-Spam-Level: X-Spam-Status: No, score=-7.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C902C433B4 for ; Thu, 15 Apr 2021 17:41:03 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id D2158611AB for ; Thu, 15 Apr 2021 17:41:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D2158611AB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:37166 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lX5zB-00070H-Oh for qemu-devel@archiver.kernel.org; Thu, 15 Apr 2021 13:41:01 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53360) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lX5TW-0005zM-W9 for qemu-devel@nongnu.org; Thu, 15 Apr 2021 13:08:19 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:42258) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lX5TS-0003sw-En for qemu-devel@nongnu.org; Thu, 15 Apr 2021 13:08:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1618506491; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JIj4ugUpSC8viniZDgxL8VLDzZJ6vyj2/cGHAYubLdA=; b=eSW0PaYi4pP+MWcLzl8tiSP7GO32N2mBML0vXxm0+cURryKGYFIhQTAWDdOjFqmd/VG2Fm Sdw3d+bJcoKiPWwRDnpBgJ3CcKAw8RyjwBzr4Oi3zh+/E1LIxaNDrrd2TASg03A0Qh0bMq YRWG3C9hXRQ80yORR+q1f2X6JFiawWg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-425-JtuuHXD3OxanRDAtgAN9QQ-1; Thu, 15 Apr 2021 13:08:05 -0400 X-MC-Unique: JtuuHXD3OxanRDAtgAN9QQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 49E0A107ACC7 for ; Thu, 15 Apr 2021 17:08:04 +0000 (UTC) Received: from redhat.com (ovpn-115-159.ams2.redhat.com [10.36.115.159]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 827F85C290; Thu, 15 Apr 2021 17:08:02 +0000 (UTC) Date: Thu, 15 Apr 2021 18:07:59 +0100 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Eduardo Habkost , Juan Quintela , Markus Armbruster , "Dr . David Alan Gilbert" , "qemu-devel@nongnu.org" , Paolo Bonzini , Vitaly Kuznetsov Subject: Re: [PATCH RFC] migration: warn about non-migratable configurations unless '--no-migration' was specified Message-ID: References: <20210415154402.28424-1-vkuznets@redhat.com> MIME-Version: 1.0 In-Reply-To: User-Agent: Mutt/2.0.5 (2021-01-21) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, Apr 15, 2021 at 05:40:40PM +0100, Daniel P. Berrangé wrote: > On Thu, Apr 15, 2021 at 12:30:11PM -0400, Eduardo Habkost wrote: > > On Thu, Apr 15, 2021 at 12:04 PM Daniel P. Berrangé wrote: > > > > > > Is it possible to query the migration blockers via QMP ? > > > > I don't think it is, but we can add that if it's useful for libvirt. > > I think it would be useful. To expand on how it could be used by a libvirt client if we could wire this up in our message reporting API. A client app using libvirt python API would do: msgs = dom.getMessages(libvirt.VIR_DOMAIN_MESSAGES_MIGBLOCKERS) if len(msgs) > 0: print("Domain %s uses features that block migration" % dom.getName()) for msg in msgs: print(" >> %s" % msg) Migration blockers change over time, as hardware is hotplugged/unplugged, so this isn't a one-off thing. The list of blockers is only valid at the point in time that it is queried. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|