qom: export more functions for use with non-UserCreatable objects

Machines and accelerators are not user-creatable but they are going
to share similar command-line parsing machinery.  Export functions
that will be used with -machine and -accel in softmmu/vl.c.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

include/qom/object.h

@@ -861,6 +861,29 @@ static void do_qemu_init_ ## type_array(void)                               \
 }                                                                           \
 type_init(do_qemu_init_ ## type_array)
 
+/**
+ * type_print_class_properties:
+ * @type: a QOM class name
+ *
+ * Print the object's class properties to stdout or the monitor.
+ * Return whether an object was found.
+ */
+bool type_print_class_properties(const char *type);
+
+/**
+ * object_set_properties_from_keyval:
+ * @obj: a QOM object
+ * @qdict: a dictionary with the properties to be set
+ * @from_json: true if leaf values of @qdict are typed, false if they
+ * are strings
+ * @errp: pointer to error object
+ *
+ * For each key in the dictionary, parse the value string if needed,
+ * then set the corresponding property in @obj.
+ */
+void object_set_properties_from_keyval(Object *obj, const QDict *qdict,
+                                       bool from_json, Error **errp);
+
 /**
  * object_class_dynamic_cast_assert:
  * @klass: The #ObjectClass to attempt to cast.