static int virtio_blk_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIOBlock *s = opaque;
int ret;
if (version_id != 2)
return -EINVAL;
ret = virtio_load(&s->vdev, f);
if (ret) {
return ret;
}
while (qemu_get_sbyte(f)) {
VirtIOBlockReq *req = virtio_blk_alloc_request(s);
qemu_get_buffer(f, (unsigned char*)&req->elem, sizeof(req->elem));
req->next = s->rq;
s->rq = req;
virtqueue_map_sg(req->elem.in_sg, req->elem.in_addr,
req->elem.in_num, 1);
virtqueue_map_sg(req->elem.out_sg, req->elem.out_addr,
req->elem.out_num, 0);
}
return 0;
}
static int virtio_balloon_load(QEMUFile *f, void *opaque, int version_id)
{
if (version_id != 1)
return -EINVAL;
return virtio_load(VIRTIO_DEVICE(opaque), f, version_id);
}
static int vhost_vsock_load(QEMUFile *f, void *opaque, size_t size)
{
VHostVSock *vsock = opaque;
VirtIODevice *vdev = VIRTIO_DEVICE(vsock);
int ret;
ret = virtio_load(vdev, f, VHOST_VSOCK_SAVEVM_VERSION);
if (ret) {
return ret;
}
if (virtio_queue_get_addr(vdev, 2)) {
/* Defer transport reset event to a vm clock timer so that virtqueue
* changes happen after migration has completed.
*/
assert(!vsock->post_load_timer);
vsock->post_load_timer =
timer_new_ns(QEMU_CLOCK_VIRTUAL,
vhost_vsock_post_load_timer_cb,
vsock);
timer_mod(vsock->post_load_timer, 1);
}
return 0;
}
static int virtio_blk_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIOBlock *s = opaque;
VirtIODevice *vdev = VIRTIO_DEVICE(s);
if (version_id != 2)
return -EINVAL;
return virtio_load(vdev, f, version_id);
}
static int virtio_console_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIOConsole *s = opaque;
if (version_id != 1)
return -EINVAL;
virtio_load(&s->vdev, f);
return 0;
}
static int virtio_balloon_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIOBalloon *s = opaque;
if (version_id != 1)
return -EINVAL;
virtio_load(&s->vdev, f);
s->num_pages = qemu_get_be32(f);
s->actual = qemu_get_be32(f);
return 0;
}
static int virtio_audio_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIOAudio *s = opaque;
VirtIOAudioStream *stream;
int i;
int mode;
if (version_id != 1)
return -EINVAL;
/* FIXME: Do bad things happen if there is a transfer in progress? */
virtio_load(&s->vdev, f);
for (i = 0; i < NUM_STREAMS; i++) {
stream = &s->stream[i];
stream->has_buffer = 0;
stream->data_left = 0;
if (stream->in_voice) {
AUD_close_in(&s->card, stream->in_voice);
stream->in_voice = NULL;
}
if (stream->out_voice) {
AUD_close_out(&s->card, stream->out_voice);
stream->out_voice = NULL;
}
mode = qemu_get_byte(f);
stream->fmt.endianness = qemu_get_byte(f);
stream->fmt.nchannels = qemu_get_be16(f);
stream->fmt.fmt = qemu_get_be32(f);
stream->fmt.freq = qemu_get_be32(f);
if (mode & 2) {
stream->in_voice = AUD_open_in(&s->card, stream->in_voice,
"virtio-audio.in",
stream,
virtio_audio_callback,
&stream->fmt);
AUD_set_active_in(stream->in_voice, mode & 1);
} else if (mode & 4) {
stream->out_voice = AUD_open_out(&s->card, stream->out_voice,
"virtio-audio.out",
stream,
virtio_audio_callback,
&stream->fmt);
AUD_set_active_out(stream->out_voice, mode & 1);
}
}
return 0;
}
static int virtio_blk_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIOBlock *s = opaque;
if (version_id != 2)
return -EINVAL;
virtio_load(&s->vdev, f);
while (qemu_get_sbyte(f)) {
VirtIOBlockReq *req = virtio_blk_alloc_request(s);
qemu_get_buffer(f, (unsigned char*)&req->elem, sizeof(req->elem));
req->next = s->rq;
s->rq = req->next;
}
return 0;
}
static int virtio_balloon_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIOBalloon *s = VIRTIO_BALLOON(opaque);
VirtIODevice *vdev = VIRTIO_DEVICE(s);
int ret;
if (version_id != 1)
return -EINVAL;
ret = virtio_load(vdev, f);
if (ret) {
return ret;
}
s->num_pages = qemu_get_be32(f);
s->actual = qemu_get_be32(f);
return 0;
}
static int virtio_net_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIONet *n = opaque;
if (version_id != 1)
return -EINVAL;
virtio_load(&n->vdev, f);
qemu_get_buffer(f, n->mac, 6);
n->tx_timer_active = qemu_get_be32(f);
if (n->tx_timer_active) {
qemu_mod_timer(n->tx_timer,
qemu_get_clock(vm_clock) + TX_TIMER_INTERVAL);
}
return 0;
}
static int virtio_rng_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIORNG *vrng = opaque;
int ret;
if (version_id != 1) {
return -EINVAL;
}
ret = virtio_load(VIRTIO_DEVICE(vrng), f, version_id);
if (ret != 0) {
return ret;
}
/* 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);
return 0;
}
static int virtio_9p_load(QEMUFile *f, void *opaque, int version_id)
{
return virtio_load(VIRTIO_DEVICE(opaque), f, version_id);
}
