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-rw-r--r--arch/s390/kvm/sthyi.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kvm/sthyi.c b/arch/s390/kvm/sthyi.c
index 05c98bb..926b524 100644
--- a/arch/s390/kvm/sthyi.c
+++ b/arch/s390/kvm/sthyi.c
@@ -404,6 +404,9 @@ int handle_sthyi(struct kvm_vcpu *vcpu)
u64 code, addr, cc = 0;
struct sthyi_sctns *sctns = NULL;
+ if (!test_kvm_facility(vcpu->kvm, 74))
+ return kvm_s390_inject_program_int(vcpu, PGM_OPERATION);
+
/*
* STHYI requires extensive locking in the higher hypervisors
* and is very computational/memory expensive. Therefore we
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