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virtio-rng: implement per-device migration calls

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While we are here, we also check virtio_load() return value.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Greg Kurz 2014-06-24 19:20:23 +02:00 committed by Michael S. Tsirkin
parent 9ea2511c85
commit 3902d49e13
1 changed files with 7 additions and 5 deletions
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12
hw/virtio/virtio-rng.c
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@ -107,19 +107,20 @@ static void virtio_rng_save(QEMUFile *f, void *opaque)
static int virtio_rng_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIORNG *vrng = opaque;
VirtIODevice *vdev = VIRTIO_DEVICE(vrng);
if (version_id != 1) {
return -EINVAL;
}
virtio_load(vdev, f, version_id);
return virtio_load(VIRTIO_DEVICE(opaque), f, version_id);
}
static int virtio_rng_load_device(VirtIODevice *vdev, QEMUFile *f,
int version_id)
{
/* We may have an element ready but couldn't process it due to a quota
* limit. Make sure to try again after live migration when the quota may
* have been reset.
*/
virtio_rng_process(vrng);
virtio_rng_process(VIRTIO_RNG(vdev));
return 0;
}
@ -219,6 +220,7 @@ static void virtio_rng_class_init(ObjectClass *klass, void *data)
vdc->realize = virtio_rng_device_realize;
vdc->unrealize = virtio_rng_device_unrealize;
vdc->get_features = get_features;
vdc->load = virtio_rng_load_device;
}
static void virtio_rng_initfn(Object *obj)