From patchwork Wed May 27 15:31:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 281816 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=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=ham 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 1D46FC433DF for ; Wed, 27 May 2020 15:33:05 +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 DC782208DB for ; Wed, 27 May 2020 15:33:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="aya0q2GK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC782208DB 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]:53736 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jdy3D-0002hf-UI for qemu-devel@archiver.kernel.org; Wed, 27 May 2020 11:33:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50366) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jdy2Y-0002G6-B8 for qemu-devel@nongnu.org; Wed, 27 May 2020 11:32:23 -0400 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:60392 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jdy2O-0005M5-Cq for qemu-devel@nongnu.org; Wed, 27 May 2020 11:32:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1590593527; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type; bh=10oSkb4PvvTP/yJmiLzUgvPVndG7S5+ZQgWeY4ntTpQ=; b=aya0q2GK6ZvC8fBLMhyfU/Tgdu3L7rILCAXg1QzZQ0yFLt1xHaflq+uTLgmHnOvbFsJqmr gthrIuuDxC6XCVHCLTgg71Z9eTnoiSMz1k8j8y1xYRyAuoBjDUwBF2ZwpkihvjssbprAhb QjLFCtTIxS7Gs4mzQOnLyXTdIXERI50= 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-332-dWYvHCFBO1aIosjubPFWwQ-1; Wed, 27 May 2020 11:32:05 -0400 X-MC-Unique: dWYvHCFBO1aIosjubPFWwQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 6A25D461; Wed, 27 May 2020 15:32:03 +0000 (UTC) Received: from thuth.com (ovpn-112-170.ams2.redhat.com [10.36.112.170]) by smtp.corp.redhat.com (Postfix) with ESMTP id 836CE1A8F1; Wed, 27 May 2020 15:31:55 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, "Michael S. Tsirkin" Subject: [PATCH] hw/pci: Fix crash when running QEMU with "-nic model=rocker" Date: Wed, 27 May 2020 17:31:52 +0200 Message-Id: <20200527153152.9211-1-thuth@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.61; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/27 05:46:19 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] 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_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: qemu-trivial@nongnu.org, Paolo Bonzini , Michael Tokarev Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" QEMU currently aborts when being started with "-nic model=rocker" or with "-net nic,model=rocker". This happens because the "rocker" device is not a normal NIC but a switch, which has different properties. Thus we should only consider real NIC devices for "-nic" and "-net". These devices can be identified by the "netdev" property, so check for this property before adding the device to the list. Reported-by: Michael Tokarev Fixes: 52310c3fa7dc854d ("net: allow using any PCI NICs in -net or -nic") Signed-off-by: Thomas Huth --- hw/pci/pci.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 70c66965f5..46214f8287 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -1887,7 +1887,18 @@ PCIDevice *pci_nic_init_nofail(NICInfo *nd, PCIBus *rootbus, if (test_bit(DEVICE_CATEGORY_NETWORK, dc->categories) && dc->user_creatable) { const char *name = object_class_get_name(list->data); - g_ptr_array_add(pci_nic_models, (gpointer)name); + /* + * A network device might also be something else than a NIC, see + * e.g. the "rocker" device. Thus we have to look for the "netdev" + * property, too. Unfortunately, some devices like virtio-net only + * create this property during instance_init, so we have to create + * a temporary instance here to be able to check it. + */ + Object *obj = object_new_with_class(OBJECT_CLASS(dc)); + if (object_property_find(obj, "netdev", NULL)) { + g_ptr_array_add(pci_nic_models, (gpointer)name); + } + object_unref(obj); } next = list->next; g_slist_free_1(list);