[Qemu-devel] [RFC PATCH v2 10/15] qapi: make query-cpu-model-expansion depend on s390 or x86

[Markus Armbruster <armbru@redhat.com>]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
---
 include/sysemu/arch_init.h             |  3 --
 monitor.c                              |  3 --
 qapi/misc.json                         | 51 -------------------------
 qapi/target.json                       | 52 ++++++++++++++++++++++++++
 qmp.c                                  |  7 ----
 stubs/Makefile.objs                    |  1 -
 stubs/arch-query-cpu-model-expansion.c | 13 -------
 target/i386/cpu.c                      |  5 ++-
 target/s390x/cpu_models.c              |  2 +-
 9 files changed, 57 insertions(+), 80 deletions(-)
 delete mode 100644 stubs/arch-query-cpu-model-expansion.c

diff --git a/include/sysemu/arch_init.h b/include/sysemu/arch_init.h
index f0ef652b2a..2497fd3351 100644
--- a/include/sysemu/arch_init.h
+++ b/include/sysemu/arch_init.h
@@ -33,7 +33,4 @@ int kvm_available(void);
 int xen_available(void);
 
 CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp);
-CpuModelExpansionInfo *arch_query_cpu_model_expansion(CpuModelExpansionType type,
-                                                      CpuModelInfo *mode,
-                                                      Error **errp);
 #endif
diff --git a/monitor.c b/monitor.c
index 48517ef745..619b19df3d 100644
--- a/monitor.c
+++ b/monitor.c
@@ -1145,9 +1145,6 @@ static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
  */
 static void qmp_unregister_commands_hack(void)
 {
-#if !defined(TARGET_S390X) && !defined(TARGET_I386)
-    qmp_unregister_command(&qmp_commands, "query-cpu-model-expansion");
-#endif
 #if !defined(TARGET_PPC) && !defined(TARGET_ARM) && !defined(TARGET_I386) \
     && !defined(TARGET_S390X)
     qmp_unregister_command(&qmp_commands, "query-cpu-definitions");
diff --git a/qapi/misc.json b/qapi/misc.json
index 677a9fb1c0..ce0e3107e5 100644
--- a/qapi/misc.json
+++ b/qapi/misc.json
@@ -2163,57 +2163,6 @@
   'data': [ 'static', 'full' ] }
 
 
-##
-# @CpuModelExpansionInfo:
-#
-# The result of a cpu model expansion.
-#
-# @model: the expanded CpuModelInfo.
-#
-# Since: 2.8.0
-##
-{ 'struct': 'CpuModelExpansionInfo',
-  'data': { 'model': 'CpuModelInfo' } }
-
-
-##
-# @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.
-#
-# This interface can be used to query the "host" CPU model.
-#
-# The data returned by this command may be affected by:
-#
-# * QEMU version: CPU models may look different depending on the QEMU version.
-#   (Except for CPU models reported as "static" in query-cpu-definitions.)
-# * machine-type: CPU model  may look different depending on the machine-type.
-#   (Except for CPU models reported as "static" in query-cpu-definitions.)
-# * machine options (including accelerator): in some architectures, CPU models
-#   may look different depending on machine and accelerator options. (Except for
-#   CPU models reported as "static" in query-cpu-definitions.)
-# * "-cpu" arguments and global properties: arguments to the -cpu option and
-#   global properties may affect expansion of CPU models. Using
-#   query-cpu-model-expansion while using these is not advised.
-#
-# Some architectures may not support all expansion types. s390x supports
-# "full" and "static".
-#
-# Returns: a CpuModelExpansionInfo. Returns an error if expanding CPU models is
-#          not supported, if the model cannot be expanded, if the model contains
-#          an unknown CPU definition name, unknown properties or properties
-#          with a wrong type. Also returns an error if an expansion type is
-#          not supported.
-#
-# Since: 2.8.0
-##
-{ 'command': 'query-cpu-model-expansion',
-  'data': { 'type': 'CpuModelExpansionType',
-            'model': 'CpuModelInfo' },
-  'returns': 'CpuModelExpansionInfo' }
-
 ##
 # @CpuModelCompareResult:
 #
diff --git a/qapi/target.json b/qapi/target.json
index f4a7054921..35653648bb 100644
--- a/qapi/target.json
+++ b/qapi/target.json
@@ -373,3 +373,55 @@
 ##
 { 'command': 'query-gic-capabilities', 'returns': ['GICCapability'],
   'if': 'defined(TARGET_ARM)' }
+
+##
+# @CpuModelExpansionInfo:
+#
+# The result of a cpu model expansion.
+#
+# @model: the expanded CpuModelInfo.
+#
+# Since: 2.8.0
+##
+{ 'struct': 'CpuModelExpansionInfo',
+  'data': { 'model': 'CpuModelInfo' },
+  'if': 'defined(TARGET_S390X) || defined(TARGET_I386)' }
+
+##
+# @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.
+#
+# This interface can be used to query the "host" CPU model.
+#
+# The data returned by this command may be affected by:
+#
+# * QEMU version: CPU models may look different depending on the QEMU version.
+#   (Except for CPU models reported as "static" in query-cpu-definitions.)
+# * machine-type: CPU model  may look different depending on the machine-type.
+#   (Except for CPU models reported as "static" in query-cpu-definitions.)
+# * machine options (including accelerator): in some architectures, CPU models
+#   may look different depending on machine and accelerator options. (Except for
+#   CPU models reported as "static" in query-cpu-definitions.)
+# * "-cpu" arguments and global properties: arguments to the -cpu option and
+#   global properties may affect expansion of CPU models. Using
+#   query-cpu-model-expansion while using these is not advised.
+#
+# Some architectures may not support all expansion types. s390x supports
+# "full" and "static".
+#
+# Returns: a CpuModelExpansionInfo. Returns an error if expanding CPU models is
+#          not supported, if the model cannot be expanded, if the model contains
+#          an unknown CPU definition name, unknown properties or properties
+#          with a wrong type. Also returns an error if an expansion type is
+#          not supported.
+#
+# Since: 2.8.0
+##
+{ 'command': 'query-cpu-model-expansion',
+  'data': { 'type': 'CpuModelExpansionType',
+            'model': 'CpuModelInfo' },
+  'returns': 'CpuModelExpansionInfo',
+  'if': 'defined(TARGET_S390X) || defined(TARGET_I386)' }
diff --git a/qmp.c b/qmp.c
index 8a613bf7c7..c81af9d23f 100644
--- a/qmp.c
+++ b/qmp.c
@@ -610,13 +610,6 @@ CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
     return arch_query_cpu_definitions(errp);
 }
 
-CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
-                                                     CpuModelInfo *model,
-                                                     Error **errp)
-{
-    return arch_query_cpu_model_expansion(type, model, errp);
-}
-
 void qmp_add_client(const char *protocol, const char *fdname,
                     bool has_skipauth, bool skipauth, bool has_tls, bool tls,
                     Error **errp)
diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index 48eb080bfb..e28f443b7b 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -1,5 +1,4 @@
 stub-obj-y += arch-query-cpu-def.o
-stub-obj-y += arch-query-cpu-model-expansion.o
 stub-obj-y += bdrv-next-monitor-owned.o
 stub-obj-y += blk-commit-all.o
 stub-obj-y += blockdev-close-all-bdrv-states.o
diff --git a/stubs/arch-query-cpu-model-expansion.c b/stubs/arch-query-cpu-model-expansion.c
deleted file mode 100644
index 26273a8b10..0000000000
--- a/stubs/arch-query-cpu-model-expansion.c
+++ /dev/null
@@ -1,13 +0,0 @@
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "sysemu/arch_init.h"
-#include "qapi/error.h"
-#include "qapi/qmp/qerror.h"
-
-CpuModelExpansionInfo *arch_query_cpu_model_expansion(CpuModelExpansionType type,
-                                                      CpuModelInfo *mode,
-                                                      Error **errp)
-{
-    error_setg(errp, QERR_UNSUPPORTED);
-    return NULL;
-}
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 677a3bd5fb..634deca8ec 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -41,6 +41,7 @@
 #include "qapi/visitor.h"
 #include "qom/qom-qobject.h"
 #include "sysemu/arch_init.h"
+#include "qapi/qapi-commands-target.h"
 
 #include "standard-headers/asm-x86/kvm_para.h"
 
@@ -3880,6 +3881,7 @@ static void x86_cpu_load_def(X86CPU *cpu, X86CPUDefinition *def, Error **errp)
 
 }
 
+#ifndef CONFIG_USER_ONLY
 /* Return a QDict containing keys for all properties that can be included
  * in static expansion of CPU models. All properties set by x86_cpu_load_def()
  * must be included in the dictionary.
@@ -4027,7 +4029,7 @@ out:
 }
 
 CpuModelExpansionInfo *
-arch_query_cpu_model_expansion(CpuModelExpansionType type,
+qmp_query_cpu_model_expansion(CpuModelExpansionType type,
                                                       CpuModelInfo *model,
                                                       Error **errp)
 {
@@ -4082,6 +4084,7 @@ out:
     }
     return ret;
 }
+#endif  /* !CONFIG_USER_ONLY */
 
 static gchar *x86_gdb_arch_name(CPUState *cs)
 {
diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c
index b532cd8d10..cf87488bfc 100644
--- a/target/s390x/cpu_models.c
+++ b/target/s390x/cpu_models.c
@@ -567,7 +567,7 @@ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model,
     }
 }
 
-CpuModelExpansionInfo *arch_query_cpu_model_expansion(CpuModelExpansionType type,
+CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
                                                       CpuModelInfo *model,
                                                       Error **errp)
 {
-- 
2.17.2