tree 600434f1e4f9cfa8af4d0595a3d35454225a476e
parent f6049f4483d61fa911a0693c2c48ce8308451d33
author Peter Maydell <peter.maydell@linaro.org> 1374853288 +0100
committer Peter Maydell <peter.maydell@linaro.org> 1376305076 +0100

hw/virtio/virtio-mmio: Make QueueNumMax read 0 for unavailable queues

The virtio-mmio spec says that QueueNumMax must read zero for queues
which are unavailable; implement this, rather than always returning
VIRTQUEUE_MAX_SIZE.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1374853288-9912-3-git-send-email-peter.maydell@linaro.org
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>