virtio-balloon: implement per-device migration calls
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>
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@ -325,10 +325,12 @@ static void virtio_balloon_to_target(void *opaque, ram_addr_t target)
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static void virtio_balloon_save(QEMUFile *f, void *opaque)
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{
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VirtIOBalloon *s = VIRTIO_BALLOON(opaque);
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VirtIODevice *vdev = VIRTIO_DEVICE(s);
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virtio_save(VIRTIO_DEVICE(opaque), f);
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}
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virtio_save(vdev, f);
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static void virtio_balloon_save_device(VirtIODevice *vdev, QEMUFile *f)
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{
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VirtIOBalloon *s = VIRTIO_BALLOON(vdev);
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qemu_put_be32(f, s->num_pages);
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qemu_put_be32(f, s->actual);
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@ -336,17 +338,16 @@ static void virtio_balloon_save(QEMUFile *f, void *opaque)
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static int virtio_balloon_load(QEMUFile *f, void *opaque, int version_id)
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{
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VirtIOBalloon *s = VIRTIO_BALLOON(opaque);
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VirtIODevice *vdev = VIRTIO_DEVICE(s);
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int ret;
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if (version_id != 1)
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return -EINVAL;
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ret = virtio_load(vdev, f, version_id);
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if (ret) {
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return ret;
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}
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return virtio_load(VIRTIO_DEVICE(opaque), f, version_id);
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}
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static int virtio_balloon_load_device(VirtIODevice *vdev, QEMUFile *f,
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int version_id)
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{
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VirtIOBalloon *s = VIRTIO_BALLOON(vdev);
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s->num_pages = qemu_get_be32(f);
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s->actual = qemu_get_be32(f);
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@ -416,6 +417,8 @@ static void virtio_balloon_class_init(ObjectClass *klass, void *data)
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vdc->get_config = virtio_balloon_get_config;
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vdc->set_config = virtio_balloon_set_config;
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vdc->get_features = virtio_balloon_get_features;
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vdc->save = virtio_balloon_save_device;
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vdc->load = virtio_balloon_load_device;
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}
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static const TypeInfo virtio_balloon_info = {
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