Merge tag 'pull-ppc-20230205' of https://gitlab.com/danielhb/qemu into staging
[qemu.git] / hw / s390x / virtio-ccw-rng.c
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 #include "hw/virtio/virtio-rng.h"
19
20 #define TYPE_VIRTIO_RNG_CCW "virtio-rng-ccw"
21 OBJECT_DECLARE_SIMPLE_TYPE(VirtIORNGCcw, VIRTIO_RNG_CCW)
22
23 struct VirtIORNGCcw {
24 VirtioCcwDevice parent_obj;
25 VirtIORNG vdev;
26 };
27
28 static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp)
29 {
30 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev);
31 DeviceState *vdev = DEVICE(&dev->vdev);
32
33 if (!qdev_realize(vdev, BUS(&ccw_dev->bus), errp)) {
34 return;
35 }
36 }
37
38 static void virtio_ccw_rng_instance_init(Object *obj)
39 {
40 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj);
41
42 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
43 TYPE_VIRTIO_RNG);
44 }
45
46 static Property virtio_ccw_rng_properties[] = {
47 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
48 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
49 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
50 VIRTIO_CCW_MAX_REV),
51 DEFINE_PROP_END_OF_LIST(),
52 };
53
54 static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data)
55 {
56 DeviceClass *dc = DEVICE_CLASS(klass);
57 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
58
59 k->realize = virtio_ccw_rng_realize;
60 device_class_set_props(dc, virtio_ccw_rng_properties);
61 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
62 }
63
64 static const TypeInfo virtio_ccw_rng = {
65 .name = TYPE_VIRTIO_RNG_CCW,
66 .parent = TYPE_VIRTIO_CCW_DEVICE,
67 .instance_size = sizeof(VirtIORNGCcw),
68 .instance_init = virtio_ccw_rng_instance_init,
69 .class_init = virtio_ccw_rng_class_init,
70 };
71
72 static void virtio_ccw_rng_register(void)
73 {
74 type_register_static(&virtio_ccw_rng);
75 }
76
77 type_init(virtio_ccw_rng_register)