KVM: s390: vsie: allow guest FORMAT-0 CRYCB on host FORMAT-2

Pierre Morel · borntraeger · commit 9ee71f20cb8d · 2018-09-28T15:50:11.000+02:00
When the guest schedules a SIE with a FORMAT-0 CRYCB,
we are able to schedule it in the host with a FORMAT-2
CRYCB if the host uses FORMAT-2

Signed-off-by: Pierre Morel &lt;pmorel@linux.ibm.com&gt;
Signed-off-by: Tony Krowiak &lt;akrowiak@linux.ibm.com&gt;
Message-Id: &lt;20180925231641.4954-24-akrowiak@linux.vnet.ibm.com&gt;
Signed-off-by: Christian Borntraeger &lt;borntraeger@de.ibm.com&gt;
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
@@ -246,7 +246,9 @@ static int setup_apcb(struct kvm_vcpu *vcpu, struct kvm_s390_crypto_cb *crycb_s,
 
 		switch (fmt_h) {
 		case CRYCB_FORMAT2:
-			return -EINVAL;
+			return setup_apcb10(vcpu, &crycb_s->apcb1,
+					    (unsigned long) &crycb->apcb0,
+					    &crycb_h->apcb1);
 		case CRYCB_FORMAT1:
 		case CRYCB_FORMAT0:
 			return setup_apcb00(vcpu,
