KVM: s390: Fix sdnxo setting for nested guests

If the guest does not use the host register management, but it uses
the sdnx area, we must fill in a proper sdnxo value (address of sdnx
and the sdnxc).

Reported-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>

diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 2fafc2be777fe410f479c1179125c3d6d9117ad9..025b1f2e17a9d45229cafea09cfb9122807d6a8f 100644 (file)
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -627,7 +627,7 @@ static int pin_blocks(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
                        rc = set_validity_icpt(scb_s, 0x10b0U);
                if (rc)
                        goto unpin;
-               scb_s->sdnxo = hpa;
+               scb_s->sdnxo = hpa | sdnxc;
        }
        return 0;
 unpin: