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Diffstat (limited to 'arch/s390/kvm/interrupt.c')
-rw-r--r--arch/s390/kvm/interrupt.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index f753c0bf9604..1ba917638bba 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -1026,6 +1026,9 @@ static int __inject_set_prefix(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
trace_kvm_s390_inject_vcpu(vcpu->vcpu_id, KVM_S390_SIGP_SET_PREFIX,
prefix->address, 0, 2);
+ if (!is_vcpu_stopped(vcpu))
+ return -EBUSY;
+
*prefix = irq->u.prefix;
set_bit(IRQ_PEND_SET_PREFIX, &li->pending_irqs);
return 0;