Extend query-cpu-definitions schema to allow it to return two new
optional fields: "runnable" and "unavailable-features".
"runnable" will tell if the CPU model can be run in the current
host. "unavailable-features" will contain a list of CPU
properties that are preventing the CPU model from running in the
current host.
Cc: David Hildenbrand <dahi@xxxxxxxxxxxxxxxxxx>
Cc: Michael Mueller <mimu@xxxxxxxxxxxxxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Cc: Cornelia Huck <cornelia.huck@xxxxxxxxxx>
Cc: Jiri Denemark <jdenemar@xxxxxxxxxx>
Cc: libvir-list@xxxxxxxxxx
Signed-off-by: Eduardo Habkost <ehabkost@xxxxxxxxxx>
---
Changes v1 -> v2:
* Remove @runnable field, non-empty @unavailable-features is
enough to report CPU model as not runnable.
* Documentation updates:
* Changed to "(since 2.7)";
* Add more details about the exact meaning of
unavailable-features, and what it would mean to see
read-only QOM properties in the list, and that
implementations can return "type" if there's
no extra information available;
---
qapi-schema.json | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/qapi-schema.json b/qapi-schema.json
index 8483bdf..43478e9 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -3005,11 +3005,32 @@
# Virtual CPU definition.
#
# @name: the name of the CPU definition
+# @unavailable-features: #optional List of properties that prevent
+# the CPU model from running in the current
+# host. (since 2.7)
+#
+# @unavailable-features is a list of QOM property names that
+# represent CPU model attributes that prevent the CPU from running.
+# If the QOM property is read-only, that means there's no known
+# way to make the CPU model run in the current host. If
+# absolutely no extra information will be returned to explain why
+# the CPU model is not runnable, implementations may simply
+# return "type" as the property name.
+# If the property is read-write, it means that it MAY be possible
+# to run the CPU model in the current host if that property is
+# changed. Management software can use it as hints to suggest or
+# choose an alternative for the user, or just to generate meaningful
+# error messages explaining why the CPU model can't be used.
+# If @unavailable-features is an empty list, the CPU model is
+# runnable using the current host and machine-type.
+# If @unavailable-features is not present, runnability
+# information for the CPU is not available.
#
# Since: 1.2.0
##
{ 'struct': 'CpuDefinitionInfo',
- 'data': { 'name': 'str' } }
+ 'data': { 'name': 'str',
+ '*unavailable-features': [ 'str' ] } }
##
# @query-cpu-definitions:
--
2.5.5
--
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