1 files changed, 16 insertions, 6 deletions

diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index d862ea502167..e373b76c5420 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -1694,16 +1694,26 @@ out:
 int kvm_vgic_inject_irq(struct kvm *kvm, int cpuid, unsigned int irq_num,
                         bool level)
 {
+        int ret = 0;
         int vcpu_id;
 
-        if (likely(vgic_ready(kvm))) {
-                vcpu_id = vgic_update_irq_pending(kvm, cpuid, irq_num, level);
-                if (vcpu_id >= 0)
-                        /* kick the specified vcpu */
-                        kvm_vcpu_kick(kvm_get_vcpu(kvm, vcpu_id));
+        if (unlikely(!vgic_initialized(kvm))) {
+                mutex_lock(&kvm->lock);
+                ret = vgic_init(kvm);
+                mutex_unlock(&kvm->lock);
+
+                if (ret)
+                        goto out;
         }
 
-        return 0;
+        vcpu_id = vgic_update_irq_pending(kvm, cpuid, irq_num, level);
+        if (vcpu_id >= 0) {
+                /* kick the specified vcpu */
+                kvm_vcpu_kick(kvm_get_vcpu(kvm, vcpu_id));
+        }
+
+out:
+        return ret;
 }
 
 static irqreturn_t vgic_maintenance_handler(int irq, void *data)