From: Daniel P. Berrangé on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2917#note_1801...
* Global add-ons are not specific to the virt UKI. If other UKIs are
created
in future, they should be able to use the same addons.
That said, the signing key we're using was assigned specific for the the virt
UKI. So if we have separate UKIs in future with different signing keys,
they'll likely need separate addons.