From nobody Tue Feb 10 03:38:47 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1629126296629798.0360809227841; Mon, 16 Aug 2021 08:04:56 -0700 (PDT) Received: from localhost ([::1]:39866 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mFeAZ-00010v-BE for importer@patchew.org; Mon, 16 Aug 2021 11:04:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39972) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mFe50-0007jL-SV for qemu-devel@nongnu.org; Mon, 16 Aug 2021 10:59:10 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:43879) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mFe4z-0004Us-8O for qemu-devel@nongnu.org; Mon, 16 Aug 2021 10:59:10 -0400 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-49-eR3jHfUlPDi-2vi844w7ew-1; Mon, 16 Aug 2021 10:59:05 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 91F66100E420; Mon, 16 Aug 2021 14:59:04 +0000 (UTC) Received: from thinkpad.redhat.com (unknown [10.39.194.70]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5E2946E0B6; Mon, 16 Aug 2021 14:59:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1629125948; 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: in-reply-to:in-reply-to:references:references; bh=Qi23dmt01KJNQG8eZ4xEC+sizAYJWaYwVUK86jnSOns=; b=D4bzn7OnaYMYthdHD9ch4ZVar1onXXqqtKx/q7zx0NjsvoSuTo5ObuWYvgXEcT9xiznUGI B8zk8+ZByFILXGWTQS/X5C7mK0iK9p2VJaQJFmKSGZTNICZbhHn30LWKf88QJXDB5iLVI7 buG1zgxErZ5Nog8DnFsJpetXiIgKuFg= X-MC-Unique: eR3jHfUlPDi-2vi844w7ew-1 From: Laurent Vivier To: qemu-devel@nongnu.org Subject: [RFC PATCH 5/6] failover: pci: unregister ROM on unplug Date: Mon, 16 Aug 2021 16:58:23 +0200 Message-Id: <20210816145824.15825-6-lvivier@redhat.com> In-Reply-To: <20210816145824.15825-1-lvivier@redhat.com> References: <20210816145824.15825-1-lvivier@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=lvivier@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=lvivier@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.698, 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_H2=-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: , Cc: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Eduardo Habkost , "Michael S. Tsirkin" , Jason Wang , Juan Quintela , Alex Williamson , Paolo Bonzini , Jens Freimann Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1629126298182100001 Content-Type: text/plain; charset="utf-8" The intend of failover is to allow a VM with a VFIO networking card to be migrated without disrupting the network operation by switching to a virtio-net device during the migration. This simple change allows a simulated device like e1000e to be tested rather than a vfio device, even if it's useless in real life it can help to debug failover. This is interesting to developers that want to test failover on a system with no vfio device. Moreover it simplifies host networking configuration as we can use the same bridge for virtio-net and the other failover networking device. Without this change the migration of a system configured with failover fails with: ... -device virtio-net-pci,id=3Dvirtionet0,failover=3Don,... \ -device e1000,failover_pair_id=3Dvirtionet0,... \ ... (qemu) migrate ... Unknown ramblock "0000:00:01.1:00.0/e1000e.rom", cannot accept migration error while loading state for instance 0x0 of device 'ram' load of migration failed: Invalid argument This happens because QEMU correctly unregisters the interface vmstate but not the ROM one. This patch fixes that. Signed-off-by: Laurent Vivier --- hw/pci/pci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/pci/pci.c b/hw/pci/pci.c index e88686b45976..7cb140940a84 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -2208,6 +2208,7 @@ static void pci_dev_handle_migration(PCIDevice *pci_d= ev, MigrationState *s) if (migration_in_setup(s)) { if (pci_dev_migration_unplug(pci_dev)) { vmstate_unregister(VMSTATE_IF(dev), qdev_get_vmsd(dev), dev); + pci_del_option_rom(pci_dev); qapi_event_send_unplug_primary(dev->id); } else { warn_report("couldn't unplug primary device"); --=20 2.31.1