The ref405ep machine is scheduled for removal in QEMU 10.0. Keep the
405 CPU implementation for a while because it is theoretically
possible to model the power management (OCC) co-processor found on the
IBM POWER [8-11] processors.

Signed-off-by: Cédric Le Goater <c...@redhat.com>
---
 docs/about/deprecated.rst | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index db9edfc24a0c..89b01779df04 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -225,6 +225,15 @@ in the QEMU object model anymore. ``Sun-UltraSparc-IIIi+`` 
and
 but for consistency these will get removed in a future release, too.
 Use ``Sun-UltraSparc-IIIi-plus`` and ``Sun-UltraSparc-IV-plus`` instead.
 
+PPC 405 CPUs (since 10.0)
+'''''''''''''''''''''''''
+
+The PPC 405 CPU has no known users and the ``ref405ep`` machine was
+removed in QEMU 10.0. Since the IBM POWER [8-11] processors uses an
+embedded 405 for power management (OCC) and other internal tasks, it
+is theoretically possible to use QEMU to model them. Let's keep the
+CPU implementation for a while before removing all support.
+
 System emulator machines
 ------------------------
 
-- 
2.48.1


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