1 /* 2 * HMP commands related to QOM 3 * 4 * This work is licensed under the terms of the GNU GPL, version 2 or 5 * later. See the COPYING file in the top-level directory. 6 */ 7 8 #include "qemu/osdep.h" 9 #include "hw/qdev-core.h" 10 #include "monitor/hmp.h" 11 #include "monitor/monitor.h" 12 #include "qapi/error.h" 13 #include "qapi/qapi-commands-qom.h" 14 #include "qapi/qmp/qdict.h" 15 #include "qapi/qmp/qjson.h" 16 #include "qapi/qmp/qstring.h" 17 #include "qom/object.h" 18 19 void hmp_qom_list(Monitor *mon, const QDict *qdict) 20 { 21 const char *path = qdict_get_try_str(qdict, "path"); 22 ObjectPropertyInfoList *list; 23 Error *err = NULL; 24 25 if (path == NULL) { 26 monitor_printf(mon, "/\n"); 27 return; 28 } 29 30 list = qmp_qom_list(path, &err); 31 if (err == NULL) { 32 ObjectPropertyInfoList *start = list; 33 while (list != NULL) { 34 ObjectPropertyInfo *value = list->value; 35 36 monitor_printf(mon, "%s (%s)\n", 37 value->name, value->type); 38 list = list->next; 39 } 40 qapi_free_ObjectPropertyInfoList(start); 41 } 42 hmp_handle_error(mon, err); 43 } 44 45 void hmp_qom_set(Monitor *mon, const QDict *qdict) 46 { 47 const bool json = qdict_get_try_bool(qdict, "json", false); 48 const char *path = qdict_get_str(qdict, "path"); 49 const char *property = qdict_get_str(qdict, "property"); 50 const char *value = qdict_get_str(qdict, "value"); 51 Error *err = NULL; 52 53 if (!json) { 54 Object *obj = object_resolve_path(path, NULL); 55 56 if (!obj) { 57 error_set(&err, ERROR_CLASS_DEVICE_NOT_FOUND, 58 "Device '%s' not found", path); 59 } else { 60 object_property_parse(obj, value, property, &err); 61 } 62 } else { 63 QObject *obj = qobject_from_json(value, &err); 64 65 if (!err) { 66 qmp_qom_set(path, property, obj, &err); 67 } 68 } 69 70 hmp_handle_error(mon, err); 71 } 72 73 void hmp_qom_get(Monitor *mon, const QDict *qdict) 74 { 75 const char *path = qdict_get_str(qdict, "path"); 76 const char *property = qdict_get_str(qdict, "property"); 77 Error *err = NULL; 78 QObject *obj = qmp_qom_get(path, property, &err); 79 80 if (err == NULL) { 81 QString *str = qobject_to_json_pretty(obj); 82 monitor_printf(mon, "%s\n", qstring_get_str(str)); 83 qobject_unref(str); 84 } 85 86 qobject_unref(obj); 87 hmp_handle_error(mon, err); 88 } 89 90 typedef struct QOMCompositionState { 91 Monitor *mon; 92 int indent; 93 } QOMCompositionState; 94 95 static void print_qom_composition(Monitor *mon, Object *obj, int indent); 96 97 static int qom_composition_compare(const void *a, const void *b, void *ignore) 98 { 99 return g_strcmp0(a ? object_get_canonical_path_component(a) : NULL, 100 b ? object_get_canonical_path_component(b) : NULL); 101 } 102 103 static int insert_qom_composition_child(Object *obj, void *opaque) 104 { 105 GQueue *children = opaque; 106 107 g_queue_insert_sorted(children, obj, qom_composition_compare, NULL); 108 return 0; 109 } 110 111 static void print_qom_composition(Monitor *mon, Object *obj, int indent) 112 { 113 char *name; 114 GQueue children; 115 Object *child; 116 117 if (obj == object_get_root()) { 118 name = g_strdup(""); 119 } else { 120 name = object_get_canonical_path_component(obj); 121 } 122 monitor_printf(mon, "%*s/%s (%s)\n", indent, "", name, 123 object_get_typename(obj)); 124 g_free(name); 125 126 g_queue_init(&children); 127 object_child_foreach(obj, insert_qom_composition_child, &children); 128 while ((child = g_queue_pop_head(&children))) { 129 print_qom_composition(mon, child, indent + 2); 130 } 131 } 132 133 void hmp_info_qom_tree(Monitor *mon, const QDict *dict) 134 { 135 const char *path = qdict_get_try_str(dict, "path"); 136 Object *obj; 137 bool ambiguous = false; 138 139 if (path) { 140 obj = object_resolve_path(path, &ambiguous); 141 if (!obj) { 142 monitor_printf(mon, "Path '%s' could not be resolved.\n", path); 143 return; 144 } 145 if (ambiguous) { 146 monitor_printf(mon, "Warning: Path '%s' is ambiguous.\n", path); 147 return; 148 } 149 } else { 150 obj = qdev_get_machine(); 151 } 152 print_qom_composition(mon, obj, 0); 153 } 154