Re: [PATCH v10 16/16] s390x: Add unpack facility feature to GA1

[Cornelia Huck]

On Wed, 18 Mar 2020 10:30:47 -0400
Janosch Frank <address@hidden> wrote:

> From: Christian Borntraeger <address@hidden>
> 
> The unpack facility is an indication that diagnose 308 subcodes 8-10
> are available to the guest. That means, that the guest can put itself
> into protected mode.
> 
> Once it is in protected mode, the hardware stops any attempt of VM
> introspection by the hypervisor.
> 
> Some features are currently not supported in protected mode:
>      * vfio devices
>      * Migration
>      * Huge page backings
> 
> Signed-off-by: Christian Borntraeger <address@hidden>
> Reviewed-by: David Hildenbrand <address@hidden>
> Reviewed-by: Claudio Imbrenda <address@hidden>
> Signed-off-by: Janosch Frank <address@hidden>
> ---
>  target/s390x/gen-features.c | 1 +
>  target/s390x/kvm.c          | 8 ++++++++
>  2 files changed, 9 insertions(+)

Reviewed-by: Cornelia Huck <address@hidden>