kvm-all.c: Move init of irqchip_inject_ioctl out of kvm_irqchip_create()

Move the init of the irqchip_inject_ioctl field of KVMState out of
kvm_irqchip_create() and into kvm_init(), so that kvm_set_irq()
can be used even when no irqchip is created (for architectures
that support async interrupt notification even without an in
kernel irqchip).
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>

kvm-all.c

@@ -1237,10 +1237,6 @@ static int kvm_irqchip_create(KVMState *s)
         return ret;
     }
 
-    s->irqchip_inject_ioctl = KVM_IRQ_LINE;
-    if (kvm_check_extension(s, KVM_CAP_IRQ_INJECT_STATUS)) {
-        s->irqchip_inject_ioctl = KVM_IRQ_LINE_STATUS;
-    }
     kvm_kernel_irqchip = true;
     /* If we have an in-kernel IRQ chip then we must have asynchronous
      * interrupt delivery (though the reverse is not necessarily true)
@@ -1389,6 +1385,11 @@ int kvm_init(void)
 
     s->intx_set_mask = kvm_check_extension(s, KVM_CAP_PCI_2_3);
 
+    s->irqchip_inject_ioctl = KVM_IRQ_LINE;
+    if (kvm_check_extension(s, KVM_CAP_IRQ_INJECT_STATUS)) {
+        s->irqchip_inject_ioctl = KVM_IRQ_LINE_STATUS;
+    }
+
     ret = kvm_arch_init(s);
     if (ret < 0) {
         goto err;