[PATCH 04/31] docs: mark CRIS support as deprecated

[Alex Bennée]

This might be premature but while streamling the avocado tests I
realised the only tests we have are "check-tcg" ones. The aging
fedora-criss-cross image works well enough for developers but can't be
used in CI as we need supported build platforms to build QEMU.

Does this mean the writing is on the wall for this architecture?

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Rabin Vincent <rabinv@axis.com>
Cc: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
---
 docs/about/deprecated.rst | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index dc4da95329..7cfe313aa6 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -399,6 +399,17 @@ Specifying the iSCSI password in plain text on the command 
line using the
 used instead, to refer to a ``--object secret...`` instance that provides
 a password via a file, or encrypted.
 
+TCG CPUs
+--------
+
+CRIS CPU architecture (since 8.1)
+'''''''''''''''''''''''''''''''''
+
+The CRIS architecture was pulled from Linux in 4.17 and the compiler
+is no longer packaged in any distro making it harder to run the
+``check-tcg`` tests. Unless we can improve the testing situation there
+is a chance the code will bitrot without anyone noticing.
+
 Backwards compatibility
 -----------------------
 
-- 
2.39.2