1 | /* |
2 | * virtio ccw random number generator implementation |
3 | * |
4 | * Copyright 2012, 2015 IBM Corp. |
5 | * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> |
6 | * |
7 | * This work is licensed under the terms of the GNU GPL, version 2 or (at |
8 | * your option) any later version. See the COPYING file in the top-level |
9 | * directory. |
10 | */ |
11 | |
12 | #include "qemu/osdep.h" |
13 | #include "hw/qdev-properties.h" |
14 | #include "hw/virtio/virtio.h" |
15 | #include "qapi/error.h" |
16 | #include "qemu/module.h" |
17 | #include "virtio-ccw.h" |
18 | |
19 | static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
20 | { |
21 | VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev); |
22 | DeviceState *vdev = DEVICE(&dev->vdev); |
23 | Error *err = NULL; |
24 | |
25 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
26 | object_property_set_bool(OBJECT(vdev), true, "realized" , &err); |
27 | if (err) { |
28 | error_propagate(errp, err); |
29 | return; |
30 | } |
31 | |
32 | object_property_set_link(OBJECT(dev), |
33 | OBJECT(dev->vdev.conf.rng), "rng" , |
34 | NULL); |
35 | } |
36 | |
37 | static void virtio_ccw_rng_instance_init(Object *obj) |
38 | { |
39 | VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); |
40 | |
41 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
42 | TYPE_VIRTIO_RNG); |
43 | } |
44 | |
45 | static Property virtio_ccw_rng_properties[] = { |
46 | DEFINE_PROP_BIT("ioeventfd" , VirtioCcwDevice, flags, |
47 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), |
48 | DEFINE_PROP_UINT32("max_revision" , VirtioCcwDevice, max_rev, |
49 | VIRTIO_CCW_MAX_REV), |
50 | DEFINE_PROP_END_OF_LIST(), |
51 | }; |
52 | |
53 | static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) |
54 | { |
55 | DeviceClass *dc = DEVICE_CLASS(klass); |
56 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); |
57 | |
58 | k->realize = virtio_ccw_rng_realize; |
59 | dc->props = virtio_ccw_rng_properties; |
60 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
61 | } |
62 | |
63 | static const TypeInfo virtio_ccw_rng = { |
64 | .name = TYPE_VIRTIO_RNG_CCW, |
65 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
66 | .instance_size = sizeof(VirtIORNGCcw), |
67 | .instance_init = virtio_ccw_rng_instance_init, |
68 | .class_init = virtio_ccw_rng_class_init, |
69 | }; |
70 | |
71 | static void virtio_ccw_rng_register(void) |
72 | { |
73 | type_register_static(&virtio_ccw_rng); |
74 | } |
75 | |
76 | type_init(virtio_ccw_rng_register) |
77 | |