Add a command that returns QOM type information that is specific
to device types and is not returned by qom-list-types.
The returned DeviceTypeInfo struct inherits from ObjectTypeInfo,
so fields returned by qom-list-types are also included.
Signed-off-by: Eduardo Habkost <ehabk...@redhat.com>
---
qapi-schema.json | 35 +++++++++++++++++++++++++++++++++++
qmp.c | 25 +++++++++++++++++++++++++
2 files changed, 60 insertions(+)
diff --git a/qapi-schema.json b/qapi-schema.json
index a3ba1c9a1c..0955380a59 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -1466,6 +1466,41 @@
'returns': [ 'DevicePropertyInfo' ] }
##
+# @DeviceTypeInfo:
+#
+# Information about a device type.
+#
+# @user-creatable: If true, the device can be instantiated using the -device
+# command-line option.
+# @hotpluggable: If true, the device can be instantiated using @device_add,
+# if the machine supports the device.
+#
+# @description: Human-readable description of the device type.
+#
+# Since: 2.11
+##
+{ 'struct': 'DeviceTypeInfo',
+ 'base': 'ObjectTypeInfo',
+ 'data': { 'hotpluggable': 'bool',
+ 'user-creatable': 'bool',
+ '*description': 'str' } }
+
+##
+# @query-device-type:
+#
+# Query information about a device type.
+#
+# @typename: the name of the device type
+#
+# Returns: a DeviceTypeInfo struct
+#
+# Since: 2.11
+##
+{ 'command': 'query-device-type',
+ 'data': { 'typename': 'str' },
+ 'returns': 'DeviceTypeInfo' }
+
+##
# @xen-set-global-dirty-log:
#
# Enable or disable the global dirty log mode.
diff --git a/qmp.c b/qmp.c
index 5ec829c09b..761fcf61c7 100644
--- a/qmp.c
+++ b/qmp.c
@@ -597,6 +597,31 @@ DevicePropertyInfoList *qmp_device_list_properties(const
char *typename,
return prop_list;
}
+DeviceTypeInfo *qmp_query_device_type(const char *typename, Error **errp)
+{
+ DeviceTypeInfo *info = g_new0(DeviceTypeInfo, 1);
+ DeviceClass *dc = get_device_class(typename, errp);
+
+ if (!dc) {
+ return NULL;
+ }
+
+ qom_type_get_info(OBJECT_CLASS(dc), qapi_DeviceTypeInfo_base(info));
+ info->user_creatable = dc->user_creatable;
+ /*
+ * We have non-user-creatable devices with hotpluggable=true (because they
+ * are instantiated internally by hotpluggable devices), but it doesn't
make
+ * sense to tell the user that device_add is supported if the device is not
+ * user-creatable
+ */
+ info->hotpluggable = dc->user_creatable && dc->hotpluggable;
+ if (dc->desc) {
+ info->has_description = true;
+ info->description = g_strdup(dc->desc);
+ }
+ return info;
+}
+
CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
{
return arch_query_cpu_definitions(errp);
--
2.13.5
