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Tsirkin" , Markus Armbruster , "Gonglei (Arei)" , Harpreet Singh Anand , Cornelia Huck , Zhu Lingshan , Laurent Vivier , Eli Cohen , Paolo Bonzini , Liuxiangdong , Eric Blake , Cindy Lu , Jason Wang , Parav Pandit Subject: [RFC PATCH v8 13/21] vhost: Add ShadowVirtQueueStart operation Date: Thu, 19 May 2022 21:12:58 +0200 Message-Id: <20220519191306.821774-14-eperezma@redhat.com> In-Reply-To: <20220519191306.821774-1-eperezma@redhat.com> References: <20220519191306.821774-1-eperezma@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1652988248384100001 It allows to run commands at SVQ start. Signed-off-by: Eugenio P=C3=A9rez --- hw/virtio/vhost-shadow-virtqueue.h | 4 ++++ hw/virtio/vhost-vdpa.c | 14 ++++++++++++++ 2 files changed, 18 insertions(+) diff --git a/hw/virtio/vhost-shadow-virtqueue.h b/hw/virtio/vhost-shadow-vi= rtqueue.h index 8fe0367944..3c55fe2641 100644 --- a/hw/virtio/vhost-shadow-virtqueue.h +++ b/hw/virtio/vhost-shadow-virtqueue.h @@ -28,10 +28,14 @@ typedef struct SVQElement { bool not_from_guest; } SVQElement; =20 +typedef struct VhostShadowVirtqueue VhostShadowVirtqueue; +typedef int (*ShadowVirtQueueStart)(VhostShadowVirtqueue *svq, + struct vhost_dev *dev); typedef void (*VirtQueueElementCallback)(VirtIODevice *vdev, const VirtQueueElement *elem); =20 typedef struct VhostShadowVirtqueueOps { + ShadowVirtQueueStart start; VirtQueueElementCallback used_elem_handler; } VhostShadowVirtqueueOps; =20 diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 13e5e2a061..eec6d544e9 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -1141,6 +1141,20 @@ static int vhost_vdpa_dev_start(struct vhost_dev *de= v, bool started) if (unlikely(r)) { return r; } + + if (v->shadow_vqs_enabled) { + for (unsigned i =3D 0; i < v->shadow_vqs->len; ++i) { + VhostShadowVirtqueue *svq =3D g_ptr_array_index(v->shadow_= vqs, + i); + if (svq->ops && svq->ops->start) { + r =3D svq->ops->start(svq, dev); + if (unlikely(r)) { + return r; + } + } + } + } + vhost_vdpa_set_vring_ready(dev); } else { vhost_vdpa_reset_device(dev); --=20 2.27.0