qapi: document parameters of query-cpu-model-* QAPI commands

Let's document the parameters of these commands, so we can remove them
from the "documentation-exceptions" list.

While at it, extend the "Returns:" documentation as well, fixing a wrong
use of CpuModelBaselineInfo vs. CpuModelCompareInfo for
query-cpu-model-comparison.

Cc: Markus Armbruster <armbru@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Eduardo Habkost <eduardo@habkost.net>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Cc: "Philippe Mathieu-Daudé" <philmd@linaro.org>
Cc: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-ID: <20240325150141.342720-1-david@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Punctuation tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>

qapi/machine-target.json

@@ -124,11 +124,12 @@
 ##
 # @query-cpu-model-comparison:
 #
-# Compares two CPU models, returning how they compare in a specific
-# configuration.  The results indicates how both models compare
-# regarding runnability.  This result can be used by tooling to make
-# decisions if a certain CPU model will run in a certain configuration
-# or if a compatible CPU model has to be created by baselining.
+# Compares two CPU models, @modela and @modelb, returning how they
+# compare in a specific configuration.  The results indicates how
+# both models compare regarding runnability.  This result can be
+# used by tooling to make decisions if a certain CPU model will
+# run in a certain configuration or if a compatible CPU model has
+# to be created by baselining.
 #
 # Usually, a CPU model is compared against the maximum possible CPU
 # model of a certain configuration (e.g. the "host" model for KVM).
@@ -154,7 +155,14 @@
 # Some architectures may not support comparing CPU models.  s390x
 # supports comparing CPU models.
 #
-# Returns: a CpuModelBaselineInfo
+# @modela: description of the first CPU model to compare, referred to as
+#     "model A" in CpuModelCompareResult
+#
+# @modelb: description of the second CPU model to compare, referred to as
+#     "model B" in CpuModelCompareResult
+#
+# Returns: a CpuModelCompareInfo describing how both CPU models
+#     compare
 #
 # Errors:
 #     - if comparing CPU models is not supported
@@ -175,9 +183,9 @@
 ##
 # @query-cpu-model-baseline:
 #
-# Baseline two CPU models, creating a compatible third model.  The
-# created model will always be a static, migration-safe CPU model (see
-# "static" CPU model expansion for details).
+# Baseline two CPU models, @modela and @modelb, creating a compatible
+# third model.  The created model will always be a static,
+# migration-safe CPU model (see "static" CPU model expansion for details).
 #
 # This interface can be used by tooling to create a compatible CPU
 # model out two CPU models.  The created CPU model will be identical
@@ -204,7 +212,11 @@
 # Some architectures may not support baselining CPU models.  s390x
 # supports baselining CPU models.
 #
-# Returns: a CpuModelBaselineInfo
+# @modela: description of the first CPU model to baseline
+#
+# @modelb: description of the second CPU model to baseline
+#
+# Returns: a CpuModelBaselineInfo describing the baselined CPU model
 #
 # Errors:
 #     - if baselining CPU models is not supported
@@ -243,10 +255,10 @@
 ##
 # @query-cpu-model-expansion:
 #
-# Expands a given CPU model (or a combination of CPU model +
-# additional options) to different granularities, allowing tooling to
-# get an understanding what a specific CPU model looks like in QEMU
-# under a certain configuration.
+# Expands a given CPU model, @model, (or a combination of CPU model +
+# additional options) to different granularities, specified by
+# @type, allowing tooling to get an understanding what a specific
+# CPU model looks like in QEMU under a certain configuration.
 #
 # This interface can be used to query the "host" CPU model.
 #
@@ -269,7 +281,11 @@
 # Some architectures may not support all expansion types.  s390x
 # supports "full" and "static". Arm only supports "full".
 #
-# Returns: a CpuModelExpansionInfo
+# @model: description of the CPU model to expand
+#
+# @type: expansion type, specifying how to expand the CPU model
+#
+# Returns: a CpuModelExpansionInfo describing the expanded CPU model
 #
 # Errors:
 #     - if expanding CPU models is not supported

qapi/pragma.json

@@ -84,9 +84,6 @@
         'XDbgBlockGraph',
         'YankInstanceType',
         'blockdev-reopen',
-        'query-cpu-model-baseline',
-        'query-cpu-model-comparison',
-        'query-cpu-model-expansion',
         'query-rocker',
         'query-rocker-ports' ],
     # Externally visible types whose member names may use uppercase