[PATCH v2 6/6] virtio-msg: add message transport to core references

The Virtio Over Messages transport is added by this series, so the
transport-neutral parts of the specification need to refer to it
alongside the existing PCI, MMIO, and Channel I/O transports.

Update the basic device facilities chapter to include Virtio Over
Messages in the list of bus-specific transport sections. Extend the
VIRTIO_F_ADMIN_VQ text to describe how message-based devices expose
administration virtqueues through transport-provided device information.

Update the introduction to describe message-based transports as one of
the virtio transport classes.

Signed-off-by: Bertrand Marquis <[email protected]>
Signed-off-by: Bill Mills <[email protected]>
---
 content.tex      | 17 ++++++++++++-----
 introduction.tex |  2 +-
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/content.tex b/content.tex
index 79e99a5801b9..0bcbeb50c965 100644
--- a/content.tex
+++ b/content.tex
@@ -2,7 +2,9 @@ \chapter{Basic Facilities of a Virtio Device}\label{sec:Basic Facilities of a Vi
 
 A virtio device is discovered and identified by a bus-specific method
 (see the bus specific sections: \ref{sec:Virtio Transport Options / Virtio Over PCI Bus}~\nameref{sec:Virtio Transport Options / Virtio Over PCI Bus},
-\ref{sec:Virtio Transport Options / Virtio Over MMIO}~\nameref{sec:Virtio Transport Options / Virtio Over MMIO} and \ref{sec:Virtio Transport Options / Virtio Over Channel I/O}~\nameref{sec:Virtio Transport Options / Virtio Over Channel I/O}).  Each
+\ref{sec:Virtio Transport Options / Virtio Over MMIO}~\nameref{sec:Virtio Transport Options / Virtio Over MMIO},
+\ref{sec:Virtio Transport Options / Virtio Over Channel I/O}~\nameref{sec:Virtio Transport Options / Virtio Over Channel I/O}
+and \ref{sec:Virtio Transport Options / Virtio Over Messages}~\nameref{sec:Virtio Transport Options / Virtio Over Messages}). Each
 device consists of the following parts:
 
 \begin{itemize}
@@ -933,11 +935,16 @@ \chapter{Reserved Feature Bits}\label{sec:Reserved Feature Bits}
 
   \item[VIRTIO_F_ADMIN_VQ(41)] This feature indicates that the device exposes one or more
   administration virtqueues.
-  At the moment this feature is only supported for devices using
-  \ref{sec:Virtio Transport Options / Virtio Over PCI
+  Devices using \ref{sec:Virtio Transport Options / Virtio Over PCI
 	  Bus}~\nameref{sec:Virtio Transport Options / Virtio Over PCI Bus}
-	  as the transport and is reserved for future use for
-	  devices using other transports (see
+	  expose administration virtqueues using the transport-specific
+	  fields defined by that transport. Devices using
+	  \ref{sec:Virtio Transport Options / Virtio Over Messages}~\nameref{sec:Virtio Transport Options / Virtio Over Messages}
+	  expose administration virtqueues through the device information
+	  reported by that transport.
+
+  For devices using other transports, this feature is reserved for
+	  future use (see
 	  \ref{drivernormative:Basic Facilities of a Virtio Device / Feature Bits}
 	and
 	\ref{devicenormative:Basic Facilities of a Virtio Device / Feature Bits} for
diff --git a/introduction.tex b/introduction.tex
index 635e267cee04..8795cf389477 100644
--- a/introduction.tex
+++ b/introduction.tex
@@ -20,7 +20,7 @@ \chapter{Introduction}
 \item[Standard:] Virtio makes no assumptions about the environment in which
   it operates, beyond supporting the bus to which device is attached.
   In this specification, virtio
-  devices are implemented over MMIO, Channel I/O and PCI bus transports
+  devices are implemented over MMIO, Channel I/O, PCI bus, and message-based transports
 \footnote{The Linux implementation further separates the virtio
 transport code from the specific virtio drivers: these drivers are shared
 between different transports.
-- 
2.53.0