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Tsirkin" , yin31149@gmail.com, Jason Wang , Yajun Wu , Zhu Lingshan , Lei Yang , Dragos Tatulea , Juan Quintela , Laurent Vivier , si-wei.liu@oracle.com, Gautam Dawar Subject: [RFC PATCH 17/18] vdpa: use shadow_data instead of first device v->shadow_vqs_enabled Date: Thu, 19 Oct 2023 16:34:54 +0200 Message-Id: <20231019143455.2377694-18-eperezma@redhat.com> In-Reply-To: <20231019143455.2377694-1-eperezma@redhat.com> References: <20231019143455.2377694-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass client-ip=170.10.133.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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_H3=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Previously we trusted vq_index == 0 will be started first. By the end of this series this might not be true, so let's check proper shadow_data for this. --- hw/virtio/vhost-vdpa.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index bfbe4673af..1f2ef953f6 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -802,7 +802,7 @@ static int vhost_vdpa_set_features(struct vhost_dev *dev, return 0; } - if (v->shadow_vqs_enabled) { + if (v->shared->shadow_data) { if ((v->acked_features ^ features) == BIT_ULL(VHOST_F_LOG_ALL)) { /* * QEMU is just trying to enable or disable logging. SVQ handles @@ -1353,7 +1353,7 @@ static int vhost_vdpa_set_log_base(struct vhost_dev *dev, uint64_t base, struct vhost_log *log) { struct vhost_vdpa *v = dev->opaque; - if (v->shadow_vqs_enabled || !vhost_vdpa_first_dev(dev)) { + if (v->shared->shadow_data || !vhost_vdpa_first_dev(dev)) { return 0; }