diff options
Diffstat (limited to 'hw/virtio')
-rw-r--r-- | hw/virtio/virtio-rng.c | 87 |
1 files changed, 21 insertions, 66 deletions
diff --git a/hw/virtio/virtio-rng.c b/hw/virtio/virtio-rng.c index b70975b09f..805dd18b76 100644 --- a/hw/virtio/virtio-rng.c +++ b/hw/virtio/virtio-rng.c @@ -130,47 +130,45 @@ static void check_rate_limit(void *opaque) qemu_get_clock_ms(vm_clock) + s->conf.period_ms); } -static VirtIODevice *virtio_rng_common_init(DeviceState *dev, - VirtIORNGConf *conf, - VirtIORNG **pvrng) +static int virtio_rng_device_init(VirtIODevice *vdev) { - VirtIORNG *vrng = *pvrng; - VirtIODevice *vdev; + DeviceState *qdev = DEVICE(vdev); + VirtIORNG *vrng = VIRTIO_RNG(vdev); Error *local_err = NULL; - /* - * We have two cases here: the old virtio-rng-x device, and the - * refactored virtio-rng. - * This will disappear later in the serie. - */ - if (vrng == NULL) { - vdev = virtio_common_init("virtio-rng", VIRTIO_ID_RNG, 0, - sizeof(VirtIORNG)); - vrng = DO_UPCAST(VirtIORNG, vdev, vdev); - } else { - vdev = VIRTIO_DEVICE(vrng); - virtio_init(vdev, "virtio-rng", VIRTIO_ID_RNG, 0); + if (vrng->conf.rng == NULL) { + vrng->conf.default_backend = RNG_RANDOM(object_new(TYPE_RNG_RANDOM)); + + object_property_add_child(OBJECT(qdev), + "default-backend", + OBJECT(vrng->conf.default_backend), + NULL); + + object_property_set_link(OBJECT(qdev), + OBJECT(vrng->conf.default_backend), + "rng", NULL); } - vrng->rng = conf->rng; + virtio_init(vdev, "virtio-rng", VIRTIO_ID_RNG, 0); + + vrng->rng = vrng->conf.rng; if (vrng->rng == NULL) { qerror_report(QERR_INVALID_PARAMETER_VALUE, "rng", "a valid object"); - return NULL; + return -1; } rng_backend_open(vrng->rng, &local_err); if (local_err) { qerror_report_err(local_err); error_free(local_err); - return NULL; + return -1; } vrng->vq = virtio_add_queue(vdev, 8, handle_input); vrng->vdev.get_features = get_features; - vrng->qdev = dev; - memcpy(&(vrng->conf), conf, sizeof(struct VirtIORNGConf)); + vrng->qdev = qdev; assert(vrng->conf.max_bytes <= INT64_MAX); vrng->quota_remaining = vrng->conf.max_bytes; @@ -181,52 +179,9 @@ static VirtIODevice *virtio_rng_common_init(DeviceState *dev, qemu_mod_timer(vrng->rate_limit_timer, qemu_get_clock_ms(vm_clock) + vrng->conf.period_ms); - register_savevm(dev, "virtio-rng", -1, 1, virtio_rng_save, + register_savevm(qdev, "virtio-rng", -1, 1, virtio_rng_save, virtio_rng_load, vrng); - return vdev; -} - -/* - * This two functions will be removed later in the serie. - */ -VirtIODevice *virtio_rng_init(DeviceState *dev, VirtIORNGConf *conf) -{ - VirtIORNG *vdev = NULL; - return virtio_rng_common_init(dev, conf, &vdev); -} - -void virtio_rng_exit(VirtIODevice *vdev) -{ - VirtIORNG *vrng = DO_UPCAST(VirtIORNG, vdev, vdev); - - qemu_del_timer(vrng->rate_limit_timer); - qemu_free_timer(vrng->rate_limit_timer); - unregister_savevm(vrng->qdev, "virtio-rng", vrng); - virtio_cleanup(vdev); -} - -static int virtio_rng_device_init(VirtIODevice *vdev) -{ - DeviceState *qdev = DEVICE(vdev); - VirtIORNG *vrng = VIRTIO_RNG(vdev); - - if (vrng->conf.rng == NULL) { - vrng->conf.default_backend = RNG_RANDOM(object_new(TYPE_RNG_RANDOM)); - - object_property_add_child(OBJECT(qdev), - "default-backend", - OBJECT(vrng->conf.default_backend), - NULL); - - object_property_set_link(OBJECT(qdev), - OBJECT(vrng->conf.default_backend), - "rng", NULL); - } - - if (virtio_rng_common_init(qdev, &(vrng->conf), &vrng) == NULL) { - return -1; - } return 0; } |