Re: [PATCH v2 1/4] KVM: s390: vsie: Allow non-zarch guests

Hendrik Brueckner
2026-04-01T17:45:52Z

On Wed, Apr 01, 2026 at 05:12:18PM +0200, Eric Farman wrote:
> Linux/KVM runs in z/Architecture-only mode. Although z/Architecture
> is built upon a long history of hardware refinements, any other
> CPU mode is not permitted.
>
> Allow a userspace to explicitly enable the use of ESA mode for
> nested guests, otherwise usage will be rejected.
>
> Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
> Signed-off-by: Eric Farman <farman@linux.ibm.com>

Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>