APPLIED[N]/Cmnt: [PATCH 0/1][SRU M/N/U] Fix secure execution regression on s390x

Stefan Bader stefan.bader at canonical.com
Fri Jan 12 10:33:23 UTC 2024


On 11.01.24 11:28, Stefan Bader wrote:
> == SRU Justification ==
> 
> Impact: To allow secure execution the S390X_UV_UAPI driver is a critical
> requirement. For 22.04/Jammy LTS we backported the driver and enabled it
> as built-in. It seems 22.10/Kinetic also had this enabled. But then in
> later releases this option flipped back to 'n'.
> 
> Fix: Turn this back on (built-in) in the annotation file. Note, this
> patch is made against Mantic. Noble and Unstable might need adjustments.
> 
> Test case (on a s390x instance):
> #> cat /boot/config-$(uname -r) | grep UV_UAPI
> CONFIG_S390X_UV_UAPI=y
> 
> Regression potential: If anything goes wrong, then likeliy within secure
> execution bounds.
> 
> Stefan Bader (1):
>    UBUNTU: [Config] Enable S390_UV_UAPI (built-in)
> 
>   debian.master/config/annotations | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 

Applied to noble:linux/master-next by Andrea. Thanks.

-Stefan
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