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-rw-r--r--arch/s390/kvm/sigp.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 509547d4fca1..87c2b3a3bd3e 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -455,6 +455,11 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu)
rc = __sigp_sense_running(vcpu, cpu_addr,
&vcpu->run->s.regs.gprs[r1]);
break;
+ case SIGP_START:
+ rc = sigp_check_callable(vcpu, cpu_addr);
+ if (rc == SIGP_CC_ORDER_CODE_ACCEPTED)
+ rc = -EOPNOTSUPP; /* Handle START in user space */
+ break;
case SIGP_RESTART:
vcpu->stat.instruction_sigp_restart++;
rc = sigp_check_callable(vcpu, cpu_addr);
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