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 char *path = qdict_get_str(qdict, "path"); 48 const char *property = qdict_get_str(qdict, "property"); 49 const char *value = qdict_get_str(qdict, "value"); 50 Error *err = NULL; 51 QObject *obj; 52 53 obj = qobject_from_json(value, &err); 54 if (err == NULL) { 55 qmp_qom_set(path, property, obj, &err); 56 } 57 58 hmp_handle_error(mon, err); 59 } 60 61 void hmp_qom_get(Monitor *mon, const QDict *qdict) 62 { 63 const char *path = qdict_get_str(qdict, "path"); 64 const char *property = qdict_get_str(qdict, "property"); 65 Error *err = NULL; 66 QObject *obj = qmp_qom_get(path, property, &err); 67 68 if (err == NULL) { 69 QString *str = qobject_to_json_pretty(obj); 70 monitor_printf(mon, "%s\n", qstring_get_str(str)); 71 qobject_unref(str); 72 } 73 74 hmp_handle_error(mon, err); 75 } 76 77 typedef struct QOMCompositionState { 78 Monitor *mon; 79 int indent; 80 } QOMCompositionState; 81 82 static void print_qom_composition(Monitor *mon, Object *obj, int indent); 83 84 static int qom_composition_compare(const void *a, const void *b, void *ignore) 85 { 86 return g_strcmp0(a ? object_get_canonical_path_component(a) : NULL, 87 b ? object_get_canonical_path_component(b) : NULL); 88 } 89 90 static int insert_qom_composition_child(Object *obj, void *opaque) 91 { 92 GQueue *children = opaque; 93 94 g_queue_insert_sorted(children, obj, qom_composition_compare, NULL); 95 return 0; 96 } 97 98 static void print_qom_composition(Monitor *mon, Object *obj, int indent) 99 { 100 char *name; 101 GQueue children; 102 Object *child; 103 104 if (obj == object_get_root()) { 105 name = g_strdup(""); 106 } else { 107 name = object_get_canonical_path_component(obj); 108 } 109 monitor_printf(mon, "%*s/%s (%s)\n", indent, "", name, 110 object_get_typename(obj)); 111 g_free(name); 112 113 g_queue_init(&children); 114 object_child_foreach(obj, insert_qom_composition_child, &children); 115 while ((child = g_queue_pop_head(&children))) { 116 print_qom_composition(mon, child, indent + 2); 117 } 118 } 119 120 void hmp_info_qom_tree(Monitor *mon, const QDict *dict) 121 { 122 const char *path = qdict_get_try_str(dict, "path"); 123 Object *obj; 124 bool ambiguous = false; 125 126 if (path) { 127 obj = object_resolve_path(path, &ambiguous); 128 if (!obj) { 129 monitor_printf(mon, "Path '%s' could not be resolved.\n", path); 130 return; 131 } 132 if (ambiguous) { 133 monitor_printf(mon, "Warning: Path '%s' is ambiguous.\n", path); 134 return; 135 } 136 } else { 137 obj = qdev_get_machine(); 138 } 139 print_qom_composition(mon, obj, 0); 140 } 141