On 16.07.24 19:32, Collin Walling wrote:
As s390 CPU models progress and deprecated properties are dropped
outright, it will be cumbersome for management apps to query the host
for a comprehensive list of deprecated properties that will need to be
disabled on older models. To remedy this, the query-cpu-model-expansion
output now behaves by filtering deprecated properties based on the
expansion type instead of filtering based off of the model's full set
of features:

When reporting a static CPU model, only show deprecated properties that
are a subset of the model's enabled features.

When reporting a full CPU model, show the entire list of deprecated
properties regardless if they are supported on the model.

Suggested-by: Jiri Denemark <jdene...@redhat.com>
Signed-off-by: Collin Walling <wall...@linux.ibm.com>
---

Changelog:

     v2
     - Changed commit message
     - Added documentation reflecting this change
     - Made code changes that more accurately filter the deprecated
         properties based on expansion type.  This change makes it
         so that the deprecated-properties reported for a static model
         expansion are a subset of the model's properties instead of
         the model's full-definition properties.

         For example:

         Previously, the z900 static model would report 'bpb' in the
         list of deprecated-properties.  However, this prop is *not*
         a part of the model's feature set, leading to some inaccuracy
         (albeit harmless).

         Now, this feature will not show during a static expansion.
         It will, however, show up in a full expansion (along with
         the rest of the list: 'csske', 'te', 'cte').

@David, I've elected to respectully forgo adding your ack-by on this
iteration since I have changed the code (and therefore the behavior)
between this version and the previous in case you do not agree with
these adjustments.

---
  qapi/machine-target.json         |  8 ++++++--
  target/s390x/cpu_models_sysemu.c | 16 +++++++++-------
  2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/qapi/machine-target.json b/qapi/machine-target.json
index a8d9ec87f5..d151504f25 100644
--- a/qapi/machine-target.json
+++ b/qapi/machine-target.json
@@ -21,8 +21,12 @@
  # @props: a dictionary of QOM properties to be applied
  #
  # @deprecated-props: a list of properties that are flagged as deprecated
-#     by the CPU vendor.  These props are a subset of the full model's
-#     definition list of properties. (since 9.1)
+#     by the CPU vendor.  (since 9.1).
+#
+# .. note:: Since 9.1, the list of deprecated props were always a subset
+#    of the model's full-definition list of properites. Now, this list is

s/properites/properties/

+#    populated with the model's enabled property set when delta changes
+#    are applied. All deprecated properties are reported otherwise.
  #
  # Since: 2.8
  ##

Acked-by: David Hildenbrand <da...@redhat.com>

--
Cheers,

David / dhildenb


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