Comment 9 for bug 2022312

Christian wrote in this bug here that the edk2 fix was preferable, and that setting ICH9-LPC.disable_s3=1 by default may break more things than it fixes:
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/1903681

It's also notable that bug was raised in 2020 on focal's release so it has been raised (and fixed) earlier than now 3 years local.

According to the above bug, the current version of the file OVMF_CODE.ms.fd is just plainly broken in all cases. So if this patch -only- effects OVMF_CODE.ms.fd and we can confirm that the file is not usable in any situation, the SRU may be more acceptable.

The question remains whether we can safely SRU this change.

My suggestion is that:
(1) We know focal-yoga is broken, but we need to determine whether focal-ussuri (the openstack version that ships with focal) works. If it does work, we could consider a backport of edk2 from jammy into the openstack cloud-archive for yoga. The SRU still needs to be understood thoroughly to be safe but we potentially only affect openstack users, rather than all Ubuntu users.

(2) If focal-ussuri is broken, we probably need to look at actually accepting this change but need some people with much more detailed knowledge to help understand if it will be OK and help understand, detail and test the risk of the change.