KVM: s390: vsie: support host-protection-interruption

Introduced with ESOP, therefore available for the guest if it
is allowed to use ESOP.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 7c9835b0a33f..aaed63ce29b2 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -240,6 +240,9 @@ static int shadow_scb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
 
         /* MVPG and Protection Exception Interpretation are always available */
         scb_s->eca |= scb_o->eca & 0x01002000U;
+        /* Host-protection-interruption introduced with ESOP */
+        if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_ESOP))
+                scb_s->ecb |= scb_o->ecb & 0x02U;
 
         prepare_ibc(vcpu, vsie_page);
 out: