| 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/core/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 const 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 | }; |
| 52 | |
| 53 | static void virtio_ccw_rng_class_init(ObjectClass *klass, const 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 | device_class_set_props(dc, 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) |