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path: root/hw/virtio-pci.c
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Diffstat (limited to 'hw/virtio-pci.c')
-rw-r--r--hw/virtio-pci.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index 270e2c7..b86c441 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -348,7 +348,9 @@ static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val)
vdev->queue_sel = val;
break;
case VIRTIO_PCI_QUEUE_NOTIFY:
- virtio_queue_notify(vdev, val);
+ if (val < VIRTIO_PCI_QUEUE_MAX) {
+ virtio_queue_notify(vdev, val);
+ }
break;
case VIRTIO_PCI_STATUS:
if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) {