Re: [PATCH v5 06/18] s390x: protvirt: Handle diag 308 subcodes 0,1,3,4

[Christian Borntraeger]

On 26.02.20 13:20, Janosch Frank wrote:
> As we now have access to the protection state of the cpus, we can
> implement special handling of diag 308 subcodes for cpus in the
> protected state.
> 
> For subcodes 0 and 1 we need to unshare all pages before continuing,
> so the guest doesn't accidentally expose data when dumping.
> 
> For subcode 3/4 we tear down the protected VM and reboot into
> unprotected mode. We do not provide a secure reboot.
> 
> Before we can do the unshare calls, we need to mark all cpus as
> stopped.
> 
> Signed-off-by: Janosch Frank <address@hidden>
> ---
>  hw/s390x/s390-virtio-ccw.c | 37 ++++++++++++++++++++++++++++++++++---
>  target/s390x/diag.c        |  4 ++++
>  2 files changed, 38 insertions(+), 3 deletions(-)
> 
> diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
> index 79f472c309..9983165b05 100644
> --- a/hw/s390x/s390-virtio-ccw.c
> +++ b/hw/s390x/s390-virtio-ccw.c
> @@ -335,6 +335,7 @@ static void s390_machine_unprotect(S390CcwMachineState 
> *ms)
>          }
>          ms->pv = false;
>      }
> +    migrate_del_blocker(pv_mig_blocker);
>  }
>  

and that part into patch 5?