From 6f82a5ea52302bab33287b0191538be6f9138637 Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Mon, 2 Jul 2012 10:05:39 +0200
Subject: [PATCH 02/17] qemu-kvm: virtio: Do not register mask notifiers
 without in-kernel irqchip support

We crash if we registers mask notifiers without backing in-kernel
irqchip. This corresponds to the check in QEMU upstream after 1.1 now.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
 hw/virtio-pci.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index a0c2ca7..5b64356 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -629,7 +629,7 @@ static int virtio_pci_set_guest_notifiers(void *opaque, bool assign)
 
     /* Must unset mask notifier while guest notifier
      * is still assigned */
-    if (!assign) {
+    if (kvm_irqchip_in_kernel() && !assign) {
 	    r = msix_unset_mask_notifier(&proxy->pci_dev);
             assert(r >= 0);
     }
@@ -647,7 +647,7 @@ static int virtio_pci_set_guest_notifiers(void *opaque, bool assign)
 
     /* Must set mask notifier after guest notifier
      * has been assigned */
-    if (assign) {
+    if (kvm_irqchip_in_kernel() && assign) {
         r = msix_set_mask_notifier(&proxy->pci_dev,
                                    virtio_pci_mask_notifier);
         if (r < 0) {
-- 
1.7.10.4