1 /* 2 * vhost vsock ccw implementation 3 * 4 * This work is licensed under the terms of the GNU GPL, version 2 or (at 5 * your option) any later version. See the COPYING file in the top-level 6 * directory. 7 */ 8 9 #include "qemu/osdep.h" 10 #include "hw/qdev-properties.h" 11 #include "hw/virtio/virtio.h" 12 #include "qapi/error.h" 13 #include "qemu/module.h" 14 #include "virtio-ccw.h" 15 16 static Property vhost_vsock_ccw_properties[] = { 17 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 18 VIRTIO_CCW_MAX_REV), 19 DEFINE_PROP_END_OF_LIST(), 20 }; 21 22 static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp) 23 { 24 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev); 25 DeviceState *vdev = DEVICE(&dev->vdev); 26 27 qdev_realize(vdev, BUS(&ccw_dev->bus), errp); 28 } 29 30 static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data) 31 { 32 DeviceClass *dc = DEVICE_CLASS(klass); 33 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 34 35 k->realize = vhost_vsock_ccw_realize; 36 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 37 device_class_set_props(dc, vhost_vsock_ccw_properties); 38 } 39 40 static void vhost_vsock_ccw_instance_init(Object *obj) 41 { 42 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); 43 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 44 VirtIODevice *virtio_dev; 45 46 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 47 TYPE_VHOST_VSOCK); 48 49 virtio_dev = VIRTIO_DEVICE(&dev->vdev); 50 51 /* 52 * To avoid migration issues, we force virtio version 1 only when 53 * legacy check is enabled in the new machine types (>= 5.1). 54 */ 55 if (!virtio_legacy_check_disabled(virtio_dev)) { 56 ccw_dev->force_revision_1 = true; 57 } 58 } 59 60 static const TypeInfo vhost_vsock_ccw_info = { 61 .name = TYPE_VHOST_VSOCK_CCW, 62 .parent = TYPE_VIRTIO_CCW_DEVICE, 63 .instance_size = sizeof(VHostVSockCCWState), 64 .instance_init = vhost_vsock_ccw_instance_init, 65 .class_init = vhost_vsock_ccw_class_init, 66 }; 67 68 static void vhost_vsock_ccw_register(void) 69 { 70 type_register_static(&vhost_vsock_ccw_info); 71 } 72 73 type_init(vhost_vsock_ccw_register) 74