Re: [PATCH v2 04/15] KVM: s390: fake memslot for ucontrol VMs

Janosch Frank
2025-01-16T12:43:02Z

On 1/16/25 12:33 PM, Claudio Imbrenda wrote:
> Create a fake memslot for ucontrol VMs. The fake memslot identity-maps
> userspace.
>
> Now memslots will always be present, and ucontrol is not a special case
> anymore.
>
> Suggested-by: Sean Christopherson <seanjc@google.com>
> Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>

You'll need to update the Documentation because of the ucontrol
EINVAL/EEXIST return change.

I don't like having EEXIST as a return value but I also don't see a lot
of gains in changing common code just so we can return the correct rc.