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-rw-r--r--content.tex3
1 files changed, 3 insertions, 0 deletions
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+++ b/content.tex
@@ -595,6 +595,9 @@ for drivers using untrusted buffers: if you do not know exactly
how much has been written by the device, you usually have to zero
the buffer to ensure no data leakage occurs.
+\field{idx} field indicates where the driver would put the next descriptor
+entry in the ring (modulo the queue size). This starts at 0, and increases.
+
\begin{note}
The legacy \hyperref[intro:Virtio PCI Draft]{[Virtio PCI Draft]}
referred to these structures as vring_used and vring_used_elem, and