[PATCH] virtio: fix used element size

["Michael S. Tsirkin" <mst@redhat.com>]

General ring description lists alignment and size for
used ring elements as 4, it must be 8.

VIRTIO-120

Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 content.tex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/content.tex b/content.tex
index 91bf9f8..f319372 100644
--- a/content.tex
+++ b/content.tex
@@ -255,7 +255,7 @@ Descriptor Table  & 16        & $16 * $(Queue Size) \\
 \hline
 Available Ring    & 2         & $6 + 2 * $(Queue Size) \\
  \hline
-Used Ring         & 4         & $6 + 4 * $(Queue Size) \\
+Used Ring         & 8         & $6 + 8 * $(Queue Size) \\
  \hline
 \end{tabular}
 
-- 
MST