[libvirt] [PATCH 1/7] qmp: introduce device-list-properties command
This can be used in conjunction with qom-list-types to determine the supported
set of devices and their parameters.
Signed-off-by: Anthony Liguori <aliguori(a)us.ibm.com>
---
qapi-schema.json | 28 ++++++++++++++++++++++++++++
qmp-commands.hx | 7 +++++++
qmp.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 85 insertions(+), 0 deletions(-)
diff --git a/qapi-schema.json b/qapi-schema.json
index bc55ed2..015a84a 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -1727,6 +1727,34 @@
'returns': [ 'ObjectTypeInfo' ] }
##
+# @DevicePropertyInfo:
+#
+# Information about device properties.
+#
+# @name: the name of the property
+# @type: the typename of the property
+#
+# Since: 1.2
+##
+{ 'type': 'DevicePropertyInfo',
+ 'data': { 'name': 'str', 'type': 'str' } }
+
+##
+# @device-list-properties:
+#
+# List properties associated with a device.
+#
+# @typename: the type name of a device
+#
+# Returns: a list of DevicePropertyInfo describing a devices properties
+#
+# Since: 1.2
+##
+{ 'command': 'device-list-properties',
+ 'data': { 'typename': 'str'},
+ 'returns': [ 'DevicePropertyInfo' ] }
+
+##
# @migrate
#
# Migrates the current running guest to another Virtual Machine.
diff --git a/qmp-commands.hx b/qmp-commands.hx
index e3cf3c5..5c55528 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -2215,3 +2215,10 @@ EQMP
.args_type = "implements:s?,abstract:b?",
.mhandler.cmd_new = qmp_marshal_input_qom_list_types,
},
+
+ {
+ .name = "device-list-properties",
+ .args_type = "typename:s",
+ .mhandler.cmd_new = qmp_marshal_input_device_list_properties,
+ },
+
diff --git a/qmp.c b/qmp.c
index fee9fb2..254a32f 100644
--- a/qmp.c
+++ b/qmp.c
@@ -417,3 +417,53 @@ ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
return ret;
}
+
+DevicePropertyInfoList *qmp_device_list_properties(const char *typename,
+ Error **errp)
+{
+ ObjectClass *klass;
+ Property *prop;
+ DevicePropertyInfoList *prop_list = NULL;
+
+ klass = object_class_by_name(typename);
+ if (klass == NULL) {
+ error_set(errp, QERR_DEVICE_NOT_FOUND, typename);
+ return NULL;
+ }
+
+ klass = object_class_dynamic_cast(klass, TYPE_DEVICE);
+ if (klass == NULL) {
+ error_set(errp, QERR_INVALID_PARAMETER_VALUE,
+ "name", TYPE_DEVICE);
+ return NULL;
+ }
+
+ do {
+ for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++)
{
+ DevicePropertyInfoList *entry;
+ DevicePropertyInfo *info;
+
+ /*
+ * TODO Properties without a parser are just for dirty hacks.
+ * qdev_prop_ptr is the only such PropertyInfo. It's marked
+ * for removal. This conditional should be removed along with
+ * it.
+ */
+ if (!prop->info->set) {
+ continue; /* no way to set it, don't show */
+ }
+
+ info = g_malloc0(sizeof(*info));
+ info->name = g_strdup(prop->name);
+ info->type = g_strdup(prop->info->legacy_name ?:
prop->info->name);
+
+ entry = g_malloc0(sizeof(*entry));
+ entry->value = info;
+ entry->next = prop_list;
+ prop_list = entry;
+ }
+ klass = object_class_get_parent(klass);
+ } while (klass != object_class_by_name(TYPE_DEVICE));
+
+ return prop_list;
+}
--
1.7.5.4