[PATCH 1/3] docs: Mention QEMU version requirement for queue-size

[Han Han]

Signed-off-by: Han Han <hhan at redhat.com>
---
 docs/formatdomain.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst
index 58768f7e5e..dbda54dc93 100644
--- a/docs/formatdomain.rst
+++ b/docs/formatdomain.rst
@@ -3086,7 +3086,7 @@ paravirtualized driver is specified via the ``disk`` element.
    -  The optional ``queues`` attribute specifies the number of virt queues for
       virtio-blk. ( :since:`Since 3.9.0` )
    -  The optional ``queue_size`` attribute specifies the size of each virt
-      queue for virtio-blk. ( :since:`Since 7.8.0` )
+      queue for virtio-blk. ( :since:`Since 7.8.0, requires QEMU 2.12` )
    -  For virtio disks, `Virtio-specific options <#elementsVirtio>`__ can also
       be set. ( :since:`Since 3.5.0` )
    -  The optional ``metadata_cache`` subelement controls aspects related to the
-- 
2.33.1