| Message ID | 1441885030-12430-1-git-send-email-pmorel@linux.vnet.ibm.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 788b556..5c856eb 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -1460,7 +1460,7 @@ hwaddr virtio_queue_get_desc_size(VirtIODevice *vdev, int n) hwaddr virtio_queue_get_avail_size(VirtIODevice *vdev, int n) { return offsetof(VRingAvail, ring) + - sizeof(uint64_t) * vdev->vq[n].vring.num; + sizeof(uint16_t) * vdev->vq[n].vring.num; } hwaddr virtio_queue_get_used_size(VirtIODevice *vdev, int n)
Being working on dataplane I notice something strange: virtio_queue_get_avail_size() used a 64bit size index for the calculation of the available ring size. It is quite strange but it did work with the old calculation of the avail ring, at most with performance penalty, and I wonder where I missed something. This patch let use a 16bit size as defined in virtio_ring.h Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com> --- PING... hw/virtio/virtio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)