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 24 if (!qdev_realize(vdev, BUS(&ccw_dev->bus), errp)) { 25 return; 26 } 27 } 28 29 static void virtio_ccw_rng_instance_init(Object *obj) 30 { 31 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); 32 33 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 34 TYPE_VIRTIO_RNG); 35 } 36 37 static Property virtio_ccw_rng_properties[] = { 38 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 39 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 40 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 41 VIRTIO_CCW_MAX_REV), 42 DEFINE_PROP_END_OF_LIST(), 43 }; 44 45 static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) 46 { 47 DeviceClass *dc = DEVICE_CLASS(klass); 48 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 49 50 k->realize = virtio_ccw_rng_realize; 51 device_class_set_props(dc, virtio_ccw_rng_properties); 52 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 53 } 54 55 static const TypeInfo virtio_ccw_rng = { 56 .name = TYPE_VIRTIO_RNG_CCW, 57 .parent = TYPE_VIRTIO_CCW_DEVICE, 58 .instance_size = sizeof(VirtIORNGCcw), 59 .instance_init = virtio_ccw_rng_instance_init, 60 .class_init = virtio_ccw_rng_class_init, 61 }; 62 63 static void virtio_ccw_rng_register(void) 64 { 65 type_register_static(&virtio_ccw_rng); 66 } 67 68 type_init(virtio_ccw_rng_register) 69