s390/vfio-ap: GISA: sort out physical vs virtual pointers usage

Fix virtual vs physical address confusion (which currently are the same)
for the GISA when enabling the IRQ.

Signed-off-by: Nico Boehr <[email protected]>
Reviewed-by: Halil Pasic <[email protected]>
Reviewed-by: Claudio Imbrenda <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Message-Id: <[email protected]>
Signed-off-by: Janosch Frank <[email protected]>

Author: Nico Boehr

drivers/s390/crypto/vfio_ap_ops.c

@@ -429,7 +429,7 @@ static struct ap_queue_status vfio_ap_irq_enable(struct vfio_ap_queue *q,
 
 	aqic_gisa.isc = nisc;
 	aqic_gisa.ir = 1;
-	aqic_gisa.gisa = (uint64_t)gisa >> 4;
+	aqic_gisa.gisa = virt_to_phys(gisa) >> 4;
 
 	status = ap_aqic(q->apqn, aqic_gisa, h_nib);
 	switch (status.response_code) {