From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id E9642A050D; Wed, 30 Mar 2022 15:50:16 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 4C8DF42855; Wed, 30 Mar 2022 15:50:16 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mails.dpdk.org (Postfix) with ESMTP id 7ED184013F for ; Wed, 30 Mar 2022 15:50:14 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1648648214; 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=o7ZmRcrq7LLgX/mT5dWXRrcuhW2TwMsCP9abuDXuKno=; b=NuddlUDmvnGYELcqaknk+jGfVoEVtpYE4Jid68g70AcqMjEDvmGAbvsIBJnAmoTJDuojBq fiYBWSnKndnUs3wWatv40Yl6Kg9g5OHfJpmO2lX2SRxKlpkl3q3m6PFZ4+P69A9/sA7uRB NAKjd6pp51dpUC28HqKoFfbkX718UvQ= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-173-S_sQx1I-OHKSmscJUnjwnA-1; Wed, 30 Mar 2022 09:50:10 -0400 X-MC-Unique: S_sQx1I-OHKSmscJUnjwnA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 1F94228078DF; Wed, 30 Mar 2022 13:50:10 +0000 (UTC) Received: from dmarchan.remote.csb (unknown [10.40.195.27]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3B8E8400E10D; Wed, 30 Mar 2022 13:50:08 +0000 (UTC) From: David Marchand To: dev@dpdk.org Cc: maxime.coquelin@redhat.com, chenbo.xia@intel.com, jiayu.hu@intel.com, yuanx.wang@intel.com, xuan.ding@intel.com, stable@dpdk.org, Yuanhan Liu , Stefan Hajnoczi Subject: [RFC PATCH v2 1/9] vhost: fix missing virtqueue lock protection Date: Wed, 30 Mar 2022 15:49:48 +0200 Message-Id: <20220330134956.18927-2-david.marchand@redhat.com> In-Reply-To: <20220330134956.18927-1-david.marchand@redhat.com> References: <20220328121758.26632-1-david.marchand@redhat.com> <20220330134956.18927-1-david.marchand@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.11.54.2 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david.marchand@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: application/octet-stream; x-default=true X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org From: Maxime Coquelin This patch ensures virtqueue metadata are not being modified while rte_vhost_vring_call() is executed. Fixes: 6c299bb7322f ("vhost: introduce vring call API") Cc: stable@dpdk.org Signed-off-by: Maxime Coquelin Reviewed-by: David Marchand --- lib/vhost/vhost.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/vhost/vhost.c b/lib/vhost/vhost.c index bc88148347..2f96a28dac 100644 --- a/lib/vhost/vhost.c +++ b/lib/vhost/vhost.c @@ -1291,11 +1291,15 @@ rte_vhost_vring_call(int vid, uint16_t vring_idx) if (!vq) return -1; + rte_spinlock_lock(&vq->access_lock); + if (vq_is_packed(dev)) vhost_vring_call_packed(dev, vq); else vhost_vring_call_split(dev, vq); + rte_spinlock_unlock(&vq->access_lock); + return 0; } -- 2.23.0