Re: [PATCH] s390x/s390-virtio-ccw: Reset PCI devices during subsystem reset

[Cornelia Huck <cohuck@redhat.com>]

On Thu, 15 Oct 2020 09:16:07 -0400
Matthew Rosato <mjrosato@linux.ibm.com> wrote:

> Currently, a subsystem reset event leaves PCI devices enabled, causing
> issues post-reset in the guest (an example would be after a kexec).  These
> devices need to be reset during a subsystem reset, allowing them to be
> properly re-enabled afterwards.  Add the S390 PCI host bridge to the list
> of qdevs to be reset during subsystem reset.
> 
> Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
> Reviewed-by: Eric Farman <farman@linux.ibm.com>
> ---
>  hw/s390x/s390-virtio-ccw.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
> index e52182f..2e90033 100644
> --- a/hw/s390x/s390-virtio-ccw.c
> +++ b/hw/s390x/s390-virtio-ccw.c
> @@ -101,6 +101,7 @@ static const char *const reset_dev_types[] = {
>      "s390-sclp-event-facility",
>      "s390-flic",
>      "diag288",
> +    TYPE_S390_PCI_HOST_BRIDGE,
>  };
>  
>  static void subsystem_reset(void)

Thanks, applied (with cc:stable added.)