From nobody Mon Feb 9 18:18:27 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 149263782476321.775595555371524; Wed, 19 Apr 2017 14:37:04 -0700 (PDT) Received: from localhost ([::1]:50544 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d0xHb-0001Cb-CM for importer@patchew.org; Wed, 19 Apr 2017 17:37:03 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44589) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d0win-0004uR-8R for qemu-devel@nongnu.org; Wed, 19 Apr 2017 17:01:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d0wij-0007Ql-Df for qemu-devel@nongnu.org; Wed, 19 Apr 2017 17:01:05 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41514) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d0wij-0007QI-7W for qemu-devel@nongnu.org; Wed, 19 Apr 2017 17:01:01 -0400 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 mx1.redhat.com (Postfix) with ESMTPS id 2177712B24 for ; Wed, 19 Apr 2017 21:01:00 +0000 (UTC) Received: from secure.com (ovpn-116-35.ams2.redhat.com [10.36.116.35]) by smtp.corp.redhat.com (Postfix) with ESMTP id DED9317127; Wed, 19 Apr 2017 21:00:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 2177712B24 Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=quintela@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 2177712B24 From: Juan Quintela To: qemu-devel@nongnu.org Date: Wed, 19 Apr 2017 22:59:22 +0200 Message-Id: <20170419205923.8808-59-quintela@redhat.com> In-Reply-To: <20170419205923.8808-1-quintela@redhat.com> References: <20170419205923.8808-1-quintela@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Wed, 19 Apr 2017 21:01:00 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 58/59] migration: Disable hotplug/unplug during migration X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dgilbert@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Until we have reviewed what can/can't be hotplugged during migration, disable it. We can enable it later for the things that we know that work. For instance, memory hotplug during postcopy doesn't work currently. Signed-off-by: Juan Quintela Reviewed-by: zhanghailiang -- - Fix typo. Thanks Thomas. - Delay migration check after we have checked that we can hotplug that device. - more typos Signed-off-by: Juan Quintela --- qdev-monitor.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/qdev-monitor.c b/qdev-monitor.c index bb3d8ba..e61d596 100644 --- a/qdev-monitor.c +++ b/qdev-monitor.c @@ -29,6 +29,7 @@ #include "qemu/error-report.h" #include "qemu/help_option.h" #include "sysemu/block-backend.h" +#include "migration/migration.h" =20 /* * Aliases were a bad idea from the start. Let's keep them @@ -603,6 +604,11 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **e= rrp) return NULL; } =20 + if (!migration_is_idle()) { + error_setg(errp, "device_add not allowed while migrating"); + return NULL; + } + /* create device */ dev =3D DEVICE(object_new(driver)); =20 @@ -853,6 +859,11 @@ void qdev_unplug(DeviceState *dev, Error **errp) return; } =20 + if (!migration_is_idle()) { + error_setg(errp, "device_del not allowed while migrating"); + return; + } + qdev_hot_removed =3D true; =20 hotplug_ctrl =3D qdev_get_hotplug_handler(dev); --=20 2.9.3