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Mon, 13 Sep 2021 01:54:43 -0400 X-MC-Unique: eqVKmdeqNLGOQlI_rUhG-g-1 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 9D3C7800FF3; Mon, 13 Sep 2021 05:54:42 +0000 (UTC) Received: from localhost.localdomain (ovpn-13-146.pek2.redhat.com [10.72.13.146]) by smtp.corp.redhat.com (Postfix) with ESMTP id 180445C3E0; Mon, 13 Sep 2021 05:54:39 +0000 (UTC) From: Jason Wang To: mst@redhat.com, jasowang@redhat.com Subject: [PATCH 5/9] virtio_config: introduce a new ready method Date: Mon, 13 Sep 2021 13:53:49 +0800 Message-Id: <20210913055353.35219-6-jasowang@redhat.com> In-Reply-To: <20210913055353.35219-1-jasowang@redhat.com> References: <20210913055353.35219-1-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Cc: konrad.wilk@oracle.com, f.hetzelt@tu-berlin.de, linux-kernel@vger.kernel.org, david.kaplan@amd.com, virtualization@lists.linux-foundation.org X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" Signed-off-by: Jason Wang --- include/linux/virtio_config.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index 8519b3ae5d52..f2891c6221a1 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -23,6 +23,8 @@ struct virtio_shm_region { * any of @get/@set, @get_status/@set_status, or @get_features/ * @finalize_features are NOT safe to be called from an atomic * context. + * @ready: make the device ready + * vdev: the virtio_device * @get: read the value of a configuration field * vdev: the virtio_device * offset: the offset of the configuration field @@ -75,6 +77,7 @@ struct virtio_shm_region { */ typedef void vq_callback_t(struct virtqueue *); struct virtio_config_ops { + void (*ready)(struct virtio_device *vdev); void (*get)(struct virtio_device *vdev, unsigned offset, void *buf, unsigned len); void (*set)(struct virtio_device *vdev, unsigned offset, @@ -229,6 +232,9 @@ void virtio_device_ready(struct virtio_device *dev) { unsigned status = dev->config->get_status(dev); + if (dev->config->ready) + dev->config->ready(dev); + BUG_ON(status & VIRTIO_CONFIG_S_DRIVER_OK); dev->config->set_status(dev, status | VIRTIO_CONFIG_S_DRIVER_OK); } -- 2.25.1 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization