On Mon, Oct 04, 2021 at 06:07:30PM +0300, Denis Plotnikov wrote:
> Adding the new vhost-user-blk type instead of modifying the existing one
> is convenent. It ease to differ the new virtio-blk-compatible vhost-user-blk
> device from the existing non-compatible one using qemu machinery without any
The main reason of adding a new type is to make cross-device live migration
between "virtio-blk" and "vhost-user-blk" devices possible in both directions.
It might be useful for the cases when a slow block layer should be replaced
with a more performant one on running VM without stopping, i.e.
