[virtio] [PATCH v4] conformance: clarify transitional/non-transitional

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

We already have a specification for conformance targets for
non-transitional devices.
Just add another clause that transitional devices satisfy.

VIRTIO-167

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---

Same patch was previouly sent as v2.

 conformance.tex | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/conformance.tex b/conformance.tex
index 6df113b..8b69e39 100644
--- a/conformance.tex
+++ b/conformance.tex
@@ -341,13 +341,9 @@ A conformant implementation MUST be either transitional or
 non-transitional, see \ref{intro:Legacy
 Interface: Terminology}.
 
-A non-transitional implementation conforms to this specification
-if it satisfies all of the MUST or REQUIRED level requirements
-defined above.
-
-An implementation MAY choose to implement OPTIONAL support for the
+A transitional implementation MUST implement support for the
 legacy interface, including support for legacy drivers
-or devices, by additionally conforming to all of the MUST or
+or devices, by conforming to all of the MUST or
 REQUIRED level requirements for the legacy interface
 for the transitional devices and drivers.
 
-- 
MST

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