From patchwork Wed Oct 23 10:04:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Hajnoczi X-Patchwork-Id: 1182013 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="bgA3jtf/"; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 46ymV41sNZz9sPf for ; Wed, 23 Oct 2019 21:15:40 +1100 (AEDT) Received: from localhost ([::1]:59844 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iNDg1-000160-BQ for incoming@patchwork.ozlabs.org; Wed, 23 Oct 2019 06:15:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40166) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iNDWv-0004OL-S2 for qemu-devel@nongnu.org; Wed, 23 Oct 2019 06:06:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iNDWt-0002SA-E9 for qemu-devel@nongnu.org; Wed, 23 Oct 2019 06:06:13 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:31439 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iNDWk-0002My-N3 for qemu-devel@nongnu.org; Wed, 23 Oct 2019 06:06:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1571825161; 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=kNGzs6XBfUuX9h6V7eDmm96BCP+yvOpdjBrhtPUVLls=; b=bgA3jtf//4Q8BkmlAIHnGhZ4Nk2AhmzImJxtAHZWo4wIIHU+vtbuSNGLokaugWLsvuttMl siTGROZQ+NUP1JTFodHoW6QKZqbKSpM6JArdA0bIKlqS1gPk1BUwruE8FacsIxZWXrzBo6 7GfPeADi6ETacQ/9XmzJGXH0k+xtHpw= 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-302-FVzT1ULeMkKffdmnER5QhA-1; Wed, 23 Oct 2019 06:05:57 -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 mimecast-mx01.redhat.com (Postfix) with ESMTPS id DBE37107AD33; Wed, 23 Oct 2019 10:05:56 +0000 (UTC) Received: from localhost (unknown [10.36.118.70]) by smtp.corp.redhat.com (Postfix) with ESMTP id 108C35C1B2; Wed, 23 Oct 2019 10:05:43 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PATCH v4 06/16] libqos: add missing virtio-9p feature negotiation Date: Wed, 23 Oct 2019 11:04:15 +0100 Message-Id: <20191023100425.12168-7-stefanha@redhat.com> In-Reply-To: <20191023100425.12168-1-stefanha@redhat.com> References: <20191023100425.12168-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-MC-Unique: FVzT1ULeMkKffdmnER5QhA-1 X-Mimecast-Spam-Score: 0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 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: Fam Zheng , Laurent Vivier , Thomas Huth , qemu-block@nongnu.org, slp@redhat.com, "Michael S. Tsirkin" , Cornelia Huck , Stefan Hajnoczi , Christophe de Dinechin , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" VIRTIO Device Initialization requires feature negotiation. The libqos virtio-9p driver lacks feature negotiation and is therefore non-compliant. libqos tests acknowledge all feature bits advertised by the device, except VIRTIO_F_BAD_FEATURE (which devices use to detect broken drivers!) and VIRTIO_RING_F_EVENT_IDX (which is not implemented in libqos and accepting it would break notifications). Signed-off-by: Stefan Hajnoczi Reviewed-by: Thomas Huth" --- tests/libqos/virtio-9p.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tests/libqos/virtio-9p.c b/tests/libqos/virtio-9p.c index 8c9efce3e1..77dbfb62ad 100644 --- a/tests/libqos/virtio-9p.c +++ b/tests/libqos/virtio-9p.c @@ -32,6 +32,12 @@ static void virtio_9p_cleanup(QVirtio9P *interface) static void virtio_9p_setup(QVirtio9P *interface) { + uint64_t features; + + features = qvirtio_get_features(interface->vdev); + features &= ~(QVIRTIO_F_BAD_FEATURE | (1ull << VIRTIO_RING_F_EVENT_IDX)); + qvirtio_set_features(interface->vdev, features); + interface->vq = qvirtqueue_setup(interface->vdev, alloc, 0); qvirtio_set_driver_ok(interface->vdev); }