Re: [virtio-comment] [PATCH v1 1/8] admin: Add theory of operation for device migration

On Thu, Oct 12, 2023 at 10:58:14AM +0000, Parav Pandit wrote:
> Sure, as I explained the config register method do not work for passthrough mode, and does not scale.

And on the flip side, to be frank not everyone has huge guests and
numbers of VMs and a slower memory mapped interface for small devices
might make sense.  What we need to do though is make this a small
non-intrusive part since it's not clear such embedded cases even need
live migration.