diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c index 07650683f703f05825125c6d71bb7753f9fec729..63c46373fbb458bbed6dd39ab31102e4fb7b6986 100644 --- a/hw/s390x/virtio-ccw.c +++ b/hw/s390x/virtio-ccw.c @@ -149,7 +149,7 @@ static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info, } else { if (info) { /* virtio-1 allows changing the ring size. */ - if (virtio_queue_get_num(vdev, index) < num) { + if (virtio_queue_get_max_num(vdev, index) < num) { /* Fail if we exceed the maximum number. */ return -EINVAL; } diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index aa4f38f50a4d9c1368f3471cb466e15d6d9612a7..94d7dbae6c58fee050b0078b5b0d143c9a996ac6 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -1262,6 +1262,11 @@ int virtio_queue_get_num(VirtIODevice *vdev, int n) return vdev->vq[n].vring.num; } +int virtio_queue_get_max_num(VirtIODevice *vdev, int n) +{ + return vdev->vq[n].vring.num_default; +} + int virtio_get_num_queues(VirtIODevice *vdev) { int i; diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index e5541c61f770b1a668f0f2483f026f7a84b92c80..6523bacd2f6ff30c644f0e131c87b32302b6e92e 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -228,6 +228,7 @@ void virtio_queue_set_addr(VirtIODevice *vdev, int n, hwaddr addr); hwaddr virtio_queue_get_addr(VirtIODevice *vdev, int n); void virtio_queue_set_num(VirtIODevice *vdev, int n, int num); int virtio_queue_get_num(VirtIODevice *vdev, int n); +int virtio_queue_get_max_num(VirtIODevice *vdev, int n); int virtio_get_num_queues(VirtIODevice *vdev); void virtio_queue_set_rings(VirtIODevice *vdev, int n, hwaddr desc, hwaddr avail, hwaddr used);