[PATCH v10 23/26] KVM: s390: vsie: allow guest FORMAT-0 CRYCB on host FORMAT-2

From: Tony Krowiak
Date: Wed Sep 12 2018 - 15:45:09 EST


From: Pierre Morel <pmorel@xxxxxxxxxxxxx>

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 <pmorel@xxxxxxxxxxxxx>
Signed-off-by: Tony Krowiak <akrowiak@xxxxxxxxxxxxx>
---
arch/s390/kvm/vsie.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index ca64663..9117891 100644
--- 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,
--
1.7.1