docs/designs: Add a design document for non-cooperative live migration
It has become apparent to some large cloud providers that the current
model of cooperative migration of guests under Xen is not usable as it
relies on software running inside the guest, which is likely beyond the
provider's control.
This patch introduces a proposal for non-cooperative live migration,
designed not to rely on any guest-side software.
Signed-off-by: Paul Durrant <paul@xen.org>
Acked-by: Julien Grall <jgrall@amazon.com>