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virtio: Migration helper function and macro

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To make conversion of virtio devices to VMState simple
at first add a helper function for the simple virtio_save
case and a helper macro that defines the VMState structure.
These will probably go away or change as more of the virtio
code gets converted.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.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 2016-07-14 18:22:45 +01:00 • committed by Michael S. Tsirkin
parent 71945ae164
commit 5943124cc0
2 changed files with 26 additions and 0 deletions
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6
hw/virtio/virtio.c
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@ -1464,6 +1464,12 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f)
vmstate_save_state(f, &vmstate_virtio, vdev, NULL);
}
/* A wrapper for use as a VMState .put function */
void virtio_vmstate_save(QEMUFile *f, void *opaque, size_t size)
{
virtio_save(VIRTIO_DEVICE(opaque), f);
}
static int virtio_set_features_nocheck(VirtIODevice *vdev, uint64_t val)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);