diff options
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/virtio-mmio.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c index 88cf994b97..4bd29533f3 100644 --- a/hw/virtio/virtio-mmio.c +++ b/hw/virtio/virtio-mmio.c @@ -151,6 +151,9 @@ static uint64_t virtio_mmio_read(void *opaque, hwaddr offset, unsigned size) } return proxy->host_features; case VIRTIO_MMIO_QUEUENUMMAX: + if (!virtio_queue_get_num(vdev, vdev->queue_sel)) { + return 0; + } return VIRTQUEUE_MAX_SIZE; case VIRTIO_MMIO_QUEUEPFN: return virtio_queue_get_addr(vdev, vdev->queue_sel) |