This function allows to get the current available ring index.
Signed-off-by: Antonios Motakis <a.mota...@virtualopensystems.com>
Signed-off-by: Nikolay Nikolaev <n.nikol...@virtualopensystems.com>
---
hw/virtio/virtio.c | 5 +++++
include/hw/virtio/virtio.h | 1 +
2 files changed, 6 insertions(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index aeabf3a..3c46e86 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1058,6 +1058,11 @@ hwaddr virtio_queue_get_ring_size(VirtIODevice *vdev,
int n)
virtio_queue_get_used_size(vdev, n);
}
+uint16_t virtio_queue_get_avail_idx(VirtIODevice *vdev, int n)
+{
+ return vring_avail_idx(&vdev->vq[n]);
+}
+
uint16_t virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n)
{
return vdev->vq[n].last_avail_idx;
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 3e54e90..3bb0db2 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -239,6 +239,7 @@ hwaddr virtio_queue_get_desc_size(VirtIODevice *vdev, int
n);
hwaddr virtio_queue_get_avail_size(VirtIODevice *vdev, int n);
hwaddr virtio_queue_get_used_size(VirtIODevice *vdev, int n);
hwaddr virtio_queue_get_ring_size(VirtIODevice *vdev, int n);
+uint16_t virtio_queue_get_avail_idx(VirtIODevice *vdev, int n);
uint16_t virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n);
void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n, uint16_t idx);
void virtio_queue_invalidate_signalled_used(VirtIODevice *vdev, int n);
--
1.8.3.2
