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virtio/migration: Migrate balloon to VMState

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Replace the load/save with a vmsd.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2016-10-27 18:36:37 +01:00 committed by Michael S. Tsirkin
parent ea43e25987
commit 019518a80e
1 changed files with 15 additions and 16 deletions
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31
hw/virtio/virtio-balloon.c
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@ -394,21 +394,9 @@ static void virtio_balloon_to_target(void *opaque, ram_addr_t target)
trace_virtio_balloon_to_target(target, dev->num_pages); trace_virtio_balloon_to_target(target, dev->num_pages);
} }
static void virtio_balloon_save_device(VirtIODevice *vdev, QEMUFile *f) static int virtio_balloon_post_load_device(void *opaque, int version_id)
{ {
VirtIOBalloon *s = VIRTIO_BALLOON(vdev); VirtIOBalloon *s = VIRTIO_BALLOON(opaque);
qemu_put_be32(f, s->num_pages);
qemu_put_be32(f, s->actual);
}
static int virtio_balloon_load_device(VirtIODevice *vdev, QEMUFile *f,
int version_id)
{
VirtIOBalloon *s = VIRTIO_BALLOON(vdev);
s->num_pages = qemu_get_be32(f);
s->actual = qemu_get_be32(f);
if (balloon_stats_enabled(s)) { if (balloon_stats_enabled(s)) {
balloon_stats_change_timer(s, s->stats_poll_interval); balloon_stats_change_timer(s, s->stats_poll_interval);
@ -416,6 +404,18 @@ static int virtio_balloon_load_device(VirtIODevice *vdev, QEMUFile *f,
return 0; return 0;
} }
static const VMStateDescription vmstate_virtio_balloon_device = {
.name = "virtio-balloon-device",
.version_id = 1,
.minimum_version_id = 1,
.post_load = virtio_balloon_post_load_device,
.fields = (VMStateField[]) {
VMSTATE_UINT32(num_pages, VirtIOBalloon),
VMSTATE_UINT32(actual, VirtIOBalloon),
VMSTATE_END_OF_LIST()
},
};
static void virtio_balloon_device_realize(DeviceState *dev, Error **errp) static void virtio_balloon_device_realize(DeviceState *dev, Error **errp)
{ {
VirtIODevice *vdev = VIRTIO_DEVICE(dev); VirtIODevice *vdev = VIRTIO_DEVICE(dev);
@ -517,9 +517,8 @@ static void virtio_balloon_class_init(ObjectClass *klass, void *data)
vdc->get_config = virtio_balloon_get_config; vdc->get_config = virtio_balloon_get_config;
vdc->set_config = virtio_balloon_set_config; vdc->set_config = virtio_balloon_set_config;
vdc->get_features = virtio_balloon_get_features; vdc->get_features = virtio_balloon_get_features;
vdc->save = virtio_balloon_save_device;
vdc->load = virtio_balloon_load_device;
vdc->set_status = virtio_balloon_set_status; vdc->set_status = virtio_balloon_set_status;
vdc->vmsd = &vmstate_virtio_balloon_device;
} }
static const TypeInfo virtio_balloon_info = { static const TypeInfo virtio_balloon_info = {