s390: vfio-ap: implement mediated device open callback

Implements the open callback on the mediated matrix device.
The function registers a group notifier to receive notification
of the VFIO_GROUP_NOTIFY_SET_KVM event. When notified,
the vfio_ap device driver will get access to the guest's
kvm structure. The open callback must ensure that only one
mediated device shall be opened per guest.

Signed-off-by: Tony Krowiak <[email protected]>
Acked-by: Halil Pasic <[email protected]>
Tested-by: Michael Mueller <[email protected]>
Tested-by: Farhan Ali <[email protected]>
Tested-by: Pierre Morel <[email protected]>
Acked-by: Pierre Morel <[email protected]>
Reviewed-by: Cornelia Huck <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Christian Borntraeger <[email protected]>

0 files changed, 0 insertions, 0 deletions