| 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/core/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 | #include "hw/virtio/vhost-vsock.h" |
| 16 | |
| 17 | #define TYPE_VHOST_VSOCK_CCW "vhost-vsock-ccw" |
| 18 | OBJECT_DECLARE_SIMPLE_TYPE(VHostVSockCCWState, VHOST_VSOCK_CCW) |
| 19 | |
| 20 | struct VHostVSockCCWState { |
| 21 | VirtioCcwDevice parent_obj; |
| 22 | VHostVSock vdev; |
| 23 | }; |
| 24 | |
| 25 | static const Property vhost_vsock_ccw_properties[] = { |
| 26 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
| 27 | VIRTIO_CCW_MAX_REV), |
| 28 | }; |
| 29 | |
| 30 | static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
| 31 | { |
| 32 | VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev); |
| 33 | DeviceState *vdev = DEVICE(&dev->vdev); |
| 34 | |
| 35 | qdev_realize(vdev, BUS(&ccw_dev->bus), errp); |
| 36 | } |
| 37 | |
| 38 | static void vhost_vsock_ccw_class_init(ObjectClass *klass, const void *data) |
| 39 | { |
| 40 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 41 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); |
| 42 | |
| 43 | k->realize = vhost_vsock_ccw_realize; |
| 44 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
| 45 | device_class_set_props(dc, vhost_vsock_ccw_properties); |
| 46 | } |
| 47 | |
| 48 | static void vhost_vsock_ccw_instance_init(Object *obj) |
| 49 | { |
| 50 | VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); |
| 51 | VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); |
| 52 | VirtIODevice *virtio_dev; |
| 53 | |
| 54 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
| 55 | TYPE_VHOST_VSOCK); |
| 56 | |
| 57 | virtio_dev = VIRTIO_DEVICE(&dev->vdev); |
| 58 | |
| 59 | /* |
| 60 | * To avoid migration issues, we force virtio version 1 only when |
| 61 | * legacy check is enabled in the new machine types (>= 5.1). |
| 62 | */ |
| 63 | if (!virtio_legacy_check_disabled(virtio_dev)) { |
| 64 | ccw_dev->force_revision_1 = true; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | static const TypeInfo vhost_vsock_ccw_info = { |
| 69 | .name = TYPE_VHOST_VSOCK_CCW, |
| 70 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
| 71 | .instance_size = sizeof(VHostVSockCCWState), |
| 72 | .instance_init = vhost_vsock_ccw_instance_init, |
| 73 | .class_init = vhost_vsock_ccw_class_init, |
| 74 | }; |
| 75 | |
| 76 | static void vhost_vsock_ccw_register(void) |
| 77 | { |
| 78 | type_register_static(&vhost_vsock_ccw_info); |
| 79 | } |
| 80 | |
| 81 | type_init(vhost_vsock_ccw_register) |