From nobody Sun Feb 8 00:50:25 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 1498677526277799.0466678625729; Wed, 28 Jun 2017 12:18:46 -0700 (PDT) Received: from localhost ([::1]:35327 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dQIU7-0002zn-TI for importer@patchew.org; Wed, 28 Jun 2017 15:18:43 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40957) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dQIEq-0005Yv-7e for qemu-devel@nongnu.org; Wed, 28 Jun 2017 15:02:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dQIEp-0000Fg-ID for qemu-devel@nongnu.org; Wed, 28 Jun 2017 15:02:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43170) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dQIEp-0000FK-Cz for qemu-devel@nongnu.org; Wed, 28 Jun 2017 15:02:55 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 67B5EC0587E4; Wed, 28 Jun 2017 19:02:54 +0000 (UTC) Received: from dgilbert-t530.redhat.com (ovpn-117-210.ams2.redhat.com [10.36.117.210]) by smtp.corp.redhat.com (Postfix) with ESMTP id B050717D24; Wed, 28 Jun 2017 19:02:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 67B5EC0587E4 Authentication-Results: ext-mx08.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx08.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=dgilbert@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 67B5EC0587E4 From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, a.perevalov@samsung.com, marcandre.lureau@redhat.com, maxime.coquelin@redhat.com, mst@redhat.com, quintela@redhat.com, peterx@redhat.com, lvivier@redhat.com, aarcange@redhat.com Date: Wed, 28 Jun 2017 20:00:43 +0100 Message-Id: <20170628190047.26159-26-dgilbert@redhat.com> In-Reply-To: <20170628190047.26159-1-dgilbert@redhat.com> References: <20170628190047.26159-1-dgilbert@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Wed, 28 Jun 2017 19:02:54 +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] [RFC 25/29] vhu: enable = false on get_vring_base 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: , 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" From: "Dr. David Alan Gilbert" When we receive a GET_VRING_BASE message set enable =3D false to stop any new received packets modifying the ring. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Maxime Coquelin --- contrib/libvhost-user/libvhost-user.c | 1 + 1 file changed, 1 insertion(+) diff --git a/contrib/libvhost-user/libvhost-user.c b/contrib/libvhost-user/= libvhost-user.c index ceddeac74f..d37052b7b0 100644 --- a/contrib/libvhost-user/libvhost-user.c +++ b/contrib/libvhost-user/libvhost-user.c @@ -652,6 +652,7 @@ vu_get_vring_base_exec(VuDev *dev, VhostUserMsg *vmsg) vmsg->size =3D sizeof(vmsg->payload.state); =20 dev->vq[index].started =3D false; + dev->vq[index].enable =3D false; if (dev->iface->queue_set_started) { dev->iface->queue_set_started(dev, index, false); } --=20 2.13.0