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-rw-r--r--qom/container.c52
-rw-r--r--qom/meson.build10
-rw-r--r--qom/object.c2813
-rw-r--r--qom/object_interfaces.c367
-rw-r--r--qom/qom-hmp-cmds.c152
-rw-r--r--qom/qom-qmp-cmds.c237
-rw-r--r--qom/qom-qobject.c45
-rw-r--r--qom/trace-events5
-rw-r--r--qom/trace.h1
9 files changed, 3682 insertions, 0 deletions
diff --git a/qom/container.c b/qom/container.c
new file mode 100644
index 000000000..455e8410c
--- /dev/null
+++ b/qom/container.c
@@ -0,0 +1,52 @@
+/*
+ * Device Container
+ *
+ * Copyright IBM, Corp. 2012
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qom/object.h"
+#include "qemu/module.h"
+
+static const TypeInfo container_info = {
+ .name = "container",
+ .parent = TYPE_OBJECT,
+};
+
+static void container_register_types(void)
+{
+ type_register_static(&container_info);
+}
+
+Object *container_get(Object *root, const char *path)
+{
+ Object *obj, *child;
+ char **parts;
+ int i;
+
+ parts = g_strsplit(path, "/", 0);
+ assert(parts != NULL && parts[0] != NULL && !parts[0][0]);
+ obj = root;
+
+ for (i = 1; parts[i] != NULL; i++, obj = child) {
+ child = object_resolve_path_component(obj, parts[i]);
+ if (!child) {
+ child = object_new("container");
+ object_property_add_child(obj, parts[i], child);
+ object_unref(child);
+ }
+ }
+
+ g_strfreev(parts);
+
+ return obj;
+}
+
+
+type_init(container_register_types)
diff --git a/qom/meson.build b/qom/meson.build
new file mode 100644
index 000000000..062a3789d
--- /dev/null
+++ b/qom/meson.build
@@ -0,0 +1,10 @@
+qom_ss.add(genh)
+qom_ss.add(files(
+ 'container.c',
+ 'object.c',
+ 'object_interfaces.c',
+ 'qom-qobject.c',
+))
+
+qmp_ss.add(files('qom-qmp-cmds.c'))
+softmmu_ss.add(files('qom-hmp-cmds.c'))
diff --git a/qom/object.c b/qom/object.c
new file mode 100644
index 000000000..4f0677cca
--- /dev/null
+++ b/qom/object.c
@@ -0,0 +1,2813 @@
+/*
+ * QEMU Object Model
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/qdev-core.h"
+#include "qapi/error.h"
+#include "qom/object.h"
+#include "qom/object_interfaces.h"
+#include "qemu/cutils.h"
+#include "qapi/visitor.h"
+#include "qapi/string-input-visitor.h"
+#include "qapi/string-output-visitor.h"
+#include "qapi/qobject-input-visitor.h"
+#include "qapi/forward-visitor.h"
+#include "qapi/qapi-builtin-visit.h"
+#include "qapi/qmp/qerror.h"
+#include "qapi/qmp/qjson.h"
+#include "trace.h"
+
+/* TODO: replace QObject with a simpler visitor to avoid a dependency
+ * of the QOM core on QObject? */
+#include "qom/qom-qobject.h"
+#include "qapi/qmp/qbool.h"
+#include "qapi/qmp/qnum.h"
+#include "qapi/qmp/qstring.h"
+#include "qemu/error-report.h"
+
+#define MAX_INTERFACES 32
+
+typedef struct InterfaceImpl InterfaceImpl;
+typedef struct TypeImpl TypeImpl;
+
+struct InterfaceImpl
+{
+ const char *typename;
+};
+
+struct TypeImpl
+{
+ const char *name;
+
+ size_t class_size;
+
+ size_t instance_size;
+ size_t instance_align;
+
+ void (*class_init)(ObjectClass *klass, void *data);
+ void (*class_base_init)(ObjectClass *klass, void *data);
+
+ void *class_data;
+
+ void (*instance_init)(Object *obj);
+ void (*instance_post_init)(Object *obj);
+ void (*instance_finalize)(Object *obj);
+
+ bool abstract;
+
+ const char *parent;
+ TypeImpl *parent_type;
+
+ ObjectClass *class;
+
+ int num_interfaces;
+ InterfaceImpl interfaces[MAX_INTERFACES];
+};
+
+static Type type_interface;
+
+static GHashTable *type_table_get(void)
+{
+ static GHashTable *type_table;
+
+ if (type_table == NULL) {
+ type_table = g_hash_table_new(g_str_hash, g_str_equal);
+ }
+
+ return type_table;
+}
+
+static bool enumerating_types;
+
+static void type_table_add(TypeImpl *ti)
+{
+ assert(!enumerating_types);
+ g_hash_table_insert(type_table_get(), (void *)ti->name, ti);
+}
+
+static TypeImpl *type_table_lookup(const char *name)
+{
+ return g_hash_table_lookup(type_table_get(), name);
+}
+
+static TypeImpl *type_new(const TypeInfo *info)
+{
+ TypeImpl *ti = g_malloc0(sizeof(*ti));
+ int i;
+
+ g_assert(info->name != NULL);
+
+ if (type_table_lookup(info->name) != NULL) {
+ fprintf(stderr, "Registering `%s' which already exists\n", info->name);
+ abort();
+ }
+
+ ti->name = g_strdup(info->name);
+ ti->parent = g_strdup(info->parent);
+
+ ti->class_size = info->class_size;
+ ti->instance_size = info->instance_size;
+ ti->instance_align = info->instance_align;
+
+ ti->class_init = info->class_init;
+ ti->class_base_init = info->class_base_init;
+ ti->class_data = info->class_data;
+
+ ti->instance_init = info->instance_init;
+ ti->instance_post_init = info->instance_post_init;
+ ti->instance_finalize = info->instance_finalize;
+
+ ti->abstract = info->abstract;
+
+ for (i = 0; info->interfaces && info->interfaces[i].type; i++) {
+ ti->interfaces[i].typename = g_strdup(info->interfaces[i].type);
+ }
+ ti->num_interfaces = i;
+
+ return ti;
+}
+
+static TypeImpl *type_register_internal(const TypeInfo *info)
+{
+ TypeImpl *ti;
+ ti = type_new(info);
+
+ type_table_add(ti);
+ return ti;
+}
+
+TypeImpl *type_register(const TypeInfo *info)
+{
+ assert(info->parent);
+ return type_register_internal(info);
+}
+
+TypeImpl *type_register_static(const TypeInfo *info)
+{
+ return type_register(info);
+}
+
+void type_register_static_array(const TypeInfo *infos, int nr_infos)
+{
+ int i;
+
+ for (i = 0; i < nr_infos; i++) {
+ type_register_static(&infos[i]);
+ }
+}
+
+static TypeImpl *type_get_by_name(const char *name)
+{
+ if (name == NULL) {
+ return NULL;
+ }
+
+ return type_table_lookup(name);
+}
+
+static TypeImpl *type_get_parent(TypeImpl *type)
+{
+ if (!type->parent_type && type->parent) {
+ type->parent_type = type_get_by_name(type->parent);
+ if (!type->parent_type) {
+ fprintf(stderr, "Type '%s' is missing its parent '%s'\n",
+ type->name, type->parent);
+ abort();
+ }
+ }
+
+ return type->parent_type;
+}
+
+static bool type_has_parent(TypeImpl *type)
+{
+ return (type->parent != NULL);
+}
+
+static size_t type_class_get_size(TypeImpl *ti)
+{
+ if (ti->class_size) {
+ return ti->class_size;
+ }
+
+ if (type_has_parent(ti)) {
+ return type_class_get_size(type_get_parent(ti));
+ }
+
+ return sizeof(ObjectClass);
+}
+
+static size_t type_object_get_size(TypeImpl *ti)
+{
+ if (ti->instance_size) {
+ return ti->instance_size;
+ }
+
+ if (type_has_parent(ti)) {
+ return type_object_get_size(type_get_parent(ti));
+ }
+
+ return 0;
+}
+
+size_t object_type_get_instance_size(const char *typename)
+{
+ TypeImpl *type = type_get_by_name(typename);
+
+ g_assert(type != NULL);
+ return type_object_get_size(type);
+}
+
+static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type)
+{
+ assert(target_type);
+
+ /* Check if target_type is a direct ancestor of type */
+ while (type) {
+ if (type == target_type) {
+ return true;
+ }
+
+ type = type_get_parent(type);
+ }
+
+ return false;
+}
+
+static void type_initialize(TypeImpl *ti);
+
+static void type_initialize_interface(TypeImpl *ti, TypeImpl *interface_type,
+ TypeImpl *parent_type)
+{
+ InterfaceClass *new_iface;
+ TypeInfo info = { };
+ TypeImpl *iface_impl;
+
+ info.parent = parent_type->name;
+ info.name = g_strdup_printf("%s::%s", ti->name, interface_type->name);
+ info.abstract = true;
+
+ iface_impl = type_new(&info);
+ iface_impl->parent_type = parent_type;
+ type_initialize(iface_impl);
+ g_free((char *)info.name);
+
+ new_iface = (InterfaceClass *)iface_impl->class;
+ new_iface->concrete_class = ti->class;
+ new_iface->interface_type = interface_type;
+
+ ti->class->interfaces = g_slist_append(ti->class->interfaces, new_iface);
+}
+
+static void object_property_free(gpointer data)
+{
+ ObjectProperty *prop = data;
+
+ if (prop->defval) {
+ qobject_unref(prop->defval);
+ prop->defval = NULL;
+ }
+ g_free(prop->name);
+ g_free(prop->type);
+ g_free(prop->description);
+ g_free(prop);
+}
+
+static void type_initialize(TypeImpl *ti)
+{
+ TypeImpl *parent;
+
+ if (ti->class) {
+ return;
+ }
+
+ ti->class_size = type_class_get_size(ti);
+ ti->instance_size = type_object_get_size(ti);
+ /* Any type with zero instance_size is implicitly abstract.
+ * This means interface types are all abstract.
+ */
+ if (ti->instance_size == 0) {
+ ti->abstract = true;
+ }
+ if (type_is_ancestor(ti, type_interface)) {
+ assert(ti->instance_size == 0);
+ assert(ti->abstract);
+ assert(!ti->instance_init);
+ assert(!ti->instance_post_init);
+ assert(!ti->instance_finalize);
+ assert(!ti->num_interfaces);
+ }
+ ti->class = g_malloc0(ti->class_size);
+
+ parent = type_get_parent(ti);
+ if (parent) {
+ type_initialize(parent);
+ GSList *e;
+ int i;
+
+ g_assert(parent->class_size <= ti->class_size);
+ g_assert(parent->instance_size <= ti->instance_size);
+ memcpy(ti->class, parent->class, parent->class_size);
+ ti->class->interfaces = NULL;
+
+ for (e = parent->class->interfaces; e; e = e->next) {
+ InterfaceClass *iface = e->data;
+ ObjectClass *klass = OBJECT_CLASS(iface);
+
+ type_initialize_interface(ti, iface->interface_type, klass->type);
+ }
+
+ for (i = 0; i < ti->num_interfaces; i++) {
+ TypeImpl *t = type_get_by_name(ti->interfaces[i].typename);
+ if (!t) {
+ error_report("missing interface '%s' for object '%s'",
+ ti->interfaces[i].typename, parent->name);
+ abort();
+ }
+ for (e = ti->class->interfaces; e; e = e->next) {
+ TypeImpl *target_type = OBJECT_CLASS(e->data)->type;
+
+ if (type_is_ancestor(target_type, t)) {
+ break;
+ }
+ }
+
+ if (e) {
+ continue;
+ }
+
+ type_initialize_interface(ti, t, t);
+ }
+ }
+
+ ti->class->properties = g_hash_table_new_full(g_str_hash, g_str_equal, NULL,
+ object_property_free);
+
+ ti->class->type = ti;
+
+ while (parent) {
+ if (parent->class_base_init) {
+ parent->class_base_init(ti->class, ti->class_data);
+ }
+ parent = type_get_parent(parent);
+ }
+
+ if (ti->class_init) {
+ ti->class_init(ti->class, ti->class_data);
+ }
+}
+
+static void object_init_with_type(Object *obj, TypeImpl *ti)
+{
+ if (type_has_parent(ti)) {
+ object_init_with_type(obj, type_get_parent(ti));
+ }
+
+ if (ti->instance_init) {
+ ti->instance_init(obj);
+ }
+}
+
+static void object_post_init_with_type(Object *obj, TypeImpl *ti)
+{
+ if (ti->instance_post_init) {
+ ti->instance_post_init(obj);
+ }
+
+ if (type_has_parent(ti)) {
+ object_post_init_with_type(obj, type_get_parent(ti));
+ }
+}
+
+bool object_apply_global_props(Object *obj, const GPtrArray *props,
+ Error **errp)
+{
+ int i;
+
+ if (!props) {
+ return true;
+ }
+
+ for (i = 0; i < props->len; i++) {
+ GlobalProperty *p = g_ptr_array_index(props, i);
+ Error *err = NULL;
+
+ if (object_dynamic_cast(obj, p->driver) == NULL) {
+ continue;
+ }
+ if (p->optional && !object_property_find(obj, p->property)) {
+ continue;
+ }
+ p->used = true;
+ if (!object_property_parse(obj, p->property, p->value, &err)) {
+ error_prepend(&err, "can't apply global %s.%s=%s: ",
+ p->driver, p->property, p->value);
+ /*
+ * If errp != NULL, propagate error and return.
+ * If errp == NULL, report a warning, but keep going
+ * with the remaining globals.
+ */
+ if (errp) {
+ error_propagate(errp, err);
+ return false;
+ } else {
+ warn_report_err(err);
+ }
+ }
+ }
+
+ return true;
+}
+
+/*
+ * Global property defaults
+ * Slot 0: accelerator's global property defaults
+ * Slot 1: machine's global property defaults
+ * Slot 2: global properties from legacy command line option
+ * Each is a GPtrArray of of GlobalProperty.
+ * Applied in order, later entries override earlier ones.
+ */
+static GPtrArray *object_compat_props[3];
+
+/*
+ * Retrieve @GPtrArray for global property defined with options
+ * other than "-global". These are generally used for syntactic
+ * sugar and legacy command line options.
+ */
+void object_register_sugar_prop(const char *driver, const char *prop,
+ const char *value, bool optional)
+{
+ GlobalProperty *g;
+ if (!object_compat_props[2]) {
+ object_compat_props[2] = g_ptr_array_new();
+ }
+ g = g_new0(GlobalProperty, 1);
+ g->driver = g_strdup(driver);
+ g->property = g_strdup(prop);
+ g->value = g_strdup(value);
+ g->optional = optional;
+ g_ptr_array_add(object_compat_props[2], g);
+}
+
+/*
+ * Set machine's global property defaults to @compat_props.
+ * May be called at most once.
+ */
+void object_set_machine_compat_props(GPtrArray *compat_props)
+{
+ assert(!object_compat_props[1]);
+ object_compat_props[1] = compat_props;
+}
+
+/*
+ * Set accelerator's global property defaults to @compat_props.
+ * May be called at most once.
+ */
+void object_set_accelerator_compat_props(GPtrArray *compat_props)
+{
+ assert(!object_compat_props[0]);
+ object_compat_props[0] = compat_props;
+}
+
+void object_apply_compat_props(Object *obj)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(object_compat_props); i++) {
+ object_apply_global_props(obj, object_compat_props[i],
+ i == 2 ? &error_fatal : &error_abort);
+ }
+}
+
+static void object_class_property_init_all(Object *obj)
+{
+ ObjectPropertyIterator iter;
+ ObjectProperty *prop;
+
+ object_class_property_iter_init(&iter, object_get_class(obj));
+ while ((prop = object_property_iter_next(&iter))) {
+ if (prop->init) {
+ prop->init(obj, prop);
+ }
+ }
+}
+
+static void object_initialize_with_type(Object *obj, size_t size, TypeImpl *type)
+{
+ type_initialize(type);
+
+ g_assert(type->instance_size >= sizeof(Object));
+ g_assert(type->abstract == false);
+ g_assert(size >= type->instance_size);
+
+ memset(obj, 0, type->instance_size);
+ obj->class = type->class;
+ object_ref(obj);
+ object_class_property_init_all(obj);
+ obj->properties = g_hash_table_new_full(g_str_hash, g_str_equal,
+ NULL, object_property_free);
+ object_init_with_type(obj, type);
+ object_post_init_with_type(obj, type);
+}
+
+void object_initialize(void *data, size_t size, const char *typename)
+{
+ TypeImpl *type = type_get_by_name(typename);
+
+#ifdef CONFIG_MODULES
+ if (!type) {
+ module_load_qom_one(typename);
+ type = type_get_by_name(typename);
+ }
+#endif
+ if (!type) {
+ error_report("missing object type '%s'", typename);
+ abort();
+ }
+
+ object_initialize_with_type(data, size, type);
+}
+
+bool object_initialize_child_with_props(Object *parentobj,
+ const char *propname,
+ void *childobj, size_t size,
+ const char *type,
+ Error **errp, ...)
+{
+ va_list vargs;
+ bool ok;
+
+ va_start(vargs, errp);
+ ok = object_initialize_child_with_propsv(parentobj, propname,
+ childobj, size, type, errp,
+ vargs);
+ va_end(vargs);
+ return ok;
+}
+
+bool object_initialize_child_with_propsv(Object *parentobj,
+ const char *propname,
+ void *childobj, size_t size,
+ const char *type,
+ Error **errp, va_list vargs)
+{
+ bool ok = false;
+ Object *obj;
+ UserCreatable *uc;
+
+ object_initialize(childobj, size, type);
+ obj = OBJECT(childobj);
+
+ if (!object_set_propv(obj, errp, vargs)) {
+ goto out;
+ }
+
+ object_property_add_child(parentobj, propname, obj);
+
+ uc = (UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE);
+ if (uc) {
+ if (!user_creatable_complete(uc, errp)) {
+ object_unparent(obj);
+ goto out;
+ }
+ }
+
+ ok = true;
+
+out:
+ /*
+ * We want @obj's reference to be 1 on success, 0 on failure.
+ * On success, it's 2: one taken by object_initialize(), and one
+ * by object_property_add_child().
+ * On failure in object_initialize() or earlier, it's 1.
+ * On failure afterwards, it's also 1: object_unparent() releases
+ * the reference taken by object_property_add_child().
+ */
+ object_unref(obj);
+ return ok;
+}
+
+void object_initialize_child_internal(Object *parent,
+ const char *propname,
+ void *child, size_t size,
+ const char *type)
+{
+ object_initialize_child_with_props(parent, propname, child, size, type,
+ &error_abort, NULL);
+}
+
+static inline bool object_property_is_child(ObjectProperty *prop)
+{
+ return strstart(prop->type, "child<", NULL);
+}
+
+static void object_property_del_all(Object *obj)
+{
+ g_autoptr(GHashTable) done = g_hash_table_new(NULL, NULL);
+ ObjectProperty *prop;
+ ObjectPropertyIterator iter;
+ bool released;
+
+ do {
+ released = false;
+ object_property_iter_init(&iter, obj);
+ while ((prop = object_property_iter_next(&iter)) != NULL) {
+ if (g_hash_table_add(done, prop)) {
+ if (prop->release) {
+ prop->release(obj, prop->name, prop->opaque);
+ released = true;
+ break;
+ }
+ }
+ }
+ } while (released);
+
+ g_hash_table_unref(obj->properties);
+}
+
+static void object_property_del_child(Object *obj, Object *child)
+{
+ ObjectProperty *prop;
+ GHashTableIter iter;
+ gpointer key, value;
+
+ g_hash_table_iter_init(&iter, obj->properties);
+ while (g_hash_table_iter_next(&iter, &key, &value)) {
+ prop = value;
+ if (object_property_is_child(prop) && prop->opaque == child) {
+ if (prop->release) {
+ prop->release(obj, prop->name, prop->opaque);
+ prop->release = NULL;
+ }
+ break;
+ }
+ }
+ g_hash_table_iter_init(&iter, obj->properties);
+ while (g_hash_table_iter_next(&iter, &key, &value)) {
+ prop = value;
+ if (object_property_is_child(prop) && prop->opaque == child) {
+ g_hash_table_iter_remove(&iter);
+ break;
+ }
+ }
+}
+
+void object_unparent(Object *obj)
+{
+ if (obj->parent) {
+ object_property_del_child(obj->parent, obj);
+ }
+}
+
+static void object_deinit(Object *obj, TypeImpl *type)
+{
+ if (type->instance_finalize) {
+ type->instance_finalize(obj);
+ }
+
+ if (type_has_parent(type)) {
+ object_deinit(obj, type_get_parent(type));
+ }
+}
+
+static void object_finalize(void *data)
+{
+ Object *obj = data;
+ TypeImpl *ti = obj->class->type;
+
+ object_property_del_all(obj);
+ object_deinit(obj, ti);
+
+ g_assert(obj->ref == 0);
+ g_assert(obj->parent == NULL);
+ if (obj->free) {
+ obj->free(obj);
+ }
+}
+
+/* Find the minimum alignment guaranteed by the system malloc. */
+#if __STDC_VERSION__ >= 201112L
+typedef max_align_t qemu_max_align_t;
+#else
+typedef union {
+ long l;
+ void *p;
+ double d;
+ long double ld;
+} qemu_max_align_t;
+#endif
+
+static Object *object_new_with_type(Type type)
+{
+ Object *obj;
+ size_t size, align;
+ void (*obj_free)(void *);
+
+ g_assert(type != NULL);
+ type_initialize(type);
+
+ size = type->instance_size;
+ align = type->instance_align;
+
+ /*
+ * Do not use qemu_memalign unless required. Depending on the
+ * implementation, extra alignment implies extra overhead.
+ */
+ if (likely(align <= __alignof__(qemu_max_align_t))) {
+ obj = g_malloc(size);
+ obj_free = g_free;
+ } else {
+ obj = qemu_memalign(align, size);
+ obj_free = qemu_vfree;
+ }
+
+ object_initialize_with_type(obj, size, type);
+ obj->free = obj_free;
+
+ return obj;
+}
+
+Object *object_new_with_class(ObjectClass *klass)
+{
+ return object_new_with_type(klass->type);
+}
+
+Object *object_new(const char *typename)
+{
+ TypeImpl *ti = type_get_by_name(typename);
+
+ return object_new_with_type(ti);
+}
+
+
+Object *object_new_with_props(const char *typename,
+ Object *parent,
+ const char *id,
+ Error **errp,
+ ...)
+{
+ va_list vargs;
+ Object *obj;
+
+ va_start(vargs, errp);
+ obj = object_new_with_propv(typename, parent, id, errp, vargs);
+ va_end(vargs);
+
+ return obj;
+}
+
+
+Object *object_new_with_propv(const char *typename,
+ Object *parent,
+ const char *id,
+ Error **errp,
+ va_list vargs)
+{
+ Object *obj;
+ ObjectClass *klass;
+ UserCreatable *uc;
+
+ klass = object_class_by_name(typename);
+ if (!klass) {
+ error_setg(errp, "invalid object type: %s", typename);
+ return NULL;
+ }
+
+ if (object_class_is_abstract(klass)) {
+ error_setg(errp, "object type '%s' is abstract", typename);
+ return NULL;
+ }
+ obj = object_new_with_type(klass->type);
+
+ if (!object_set_propv(obj, errp, vargs)) {
+ goto error;
+ }
+
+ if (id != NULL) {
+ object_property_add_child(parent, id, obj);
+ }
+
+ uc = (UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE);
+ if (uc) {
+ if (!user_creatable_complete(uc, errp)) {
+ if (id != NULL) {
+ object_unparent(obj);
+ }
+ goto error;
+ }
+ }
+
+ object_unref(obj);
+ return obj;
+
+ error:
+ object_unref(obj);
+ return NULL;
+}
+
+
+bool object_set_props(Object *obj,
+ Error **errp,
+ ...)
+{
+ va_list vargs;
+ bool ret;
+
+ va_start(vargs, errp);
+ ret = object_set_propv(obj, errp, vargs);
+ va_end(vargs);
+
+ return ret;
+}
+
+
+bool object_set_propv(Object *obj,
+ Error **errp,
+ va_list vargs)
+{
+ const char *propname;
+
+ propname = va_arg(vargs, char *);
+ while (propname != NULL) {
+ const char *value = va_arg(vargs, char *);
+
+ g_assert(value != NULL);
+ if (!object_property_parse(obj, propname, value, errp)) {
+ return false;
+ }
+ propname = va_arg(vargs, char *);
+ }
+
+ return true;
+}
+
+
+Object *object_dynamic_cast(Object *obj, const char *typename)
+{
+ if (obj && object_class_dynamic_cast(object_get_class(obj), typename)) {
+ return obj;
+ }
+
+ return NULL;
+}
+
+Object *object_dynamic_cast_assert(Object *obj, const char *typename,
+ const char *file, int line, const char *func)
+{
+ trace_object_dynamic_cast_assert(obj ? obj->class->type->name : "(null)",
+ typename, file, line, func);
+
+#ifdef CONFIG_QOM_CAST_DEBUG
+ int i;
+ Object *inst;
+
+ for (i = 0; obj && i < OBJECT_CLASS_CAST_CACHE; i++) {
+ if (qatomic_read(&obj->class->object_cast_cache[i]) == typename) {
+ goto out;
+ }
+ }
+
+ inst = object_dynamic_cast(obj, typename);
+
+ if (!inst && obj) {
+ fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n",
+ file, line, func, obj, typename);
+ abort();
+ }
+
+ assert(obj == inst);
+
+ if (obj && obj == inst) {
+ for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) {
+ qatomic_set(&obj->class->object_cast_cache[i - 1],
+ qatomic_read(&obj->class->object_cast_cache[i]));
+ }
+ qatomic_set(&obj->class->object_cast_cache[i - 1], typename);
+ }
+
+out:
+#endif
+ return obj;
+}
+
+ObjectClass *object_class_dynamic_cast(ObjectClass *class,
+ const char *typename)
+{
+ ObjectClass *ret = NULL;
+ TypeImpl *target_type;
+ TypeImpl *type;
+
+ if (!class) {
+ return NULL;
+ }
+
+ /* A simple fast path that can trigger a lot for leaf classes. */
+ type = class->type;
+ if (type->name == typename) {
+ return class;
+ }
+
+ target_type = type_get_by_name(typename);
+ if (!target_type) {
+ /* target class type unknown, so fail the cast */
+ return NULL;
+ }
+
+ if (type->class->interfaces &&
+ type_is_ancestor(target_type, type_interface)) {
+ int found = 0;
+ GSList *i;
+
+ for (i = class->interfaces; i; i = i->next) {
+ ObjectClass *target_class = i->data;
+
+ if (type_is_ancestor(target_class->type, target_type)) {
+ ret = target_class;
+ found++;
+ }
+ }
+
+ /* The match was ambiguous, don't allow a cast */
+ if (found > 1) {
+ ret = NULL;
+ }
+ } else if (type_is_ancestor(type, target_type)) {
+ ret = class;
+ }
+
+ return ret;
+}
+
+ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class,
+ const char *typename,
+ const char *file, int line,
+ const char *func)
+{
+ ObjectClass *ret;
+
+ trace_object_class_dynamic_cast_assert(class ? class->type->name : "(null)",
+ typename, file, line, func);
+
+#ifdef CONFIG_QOM_CAST_DEBUG
+ int i;
+
+ for (i = 0; class && i < OBJECT_CLASS_CAST_CACHE; i++) {
+ if (qatomic_read(&class->class_cast_cache[i]) == typename) {
+ ret = class;
+ goto out;
+ }
+ }
+#else
+ if (!class || !class->interfaces) {
+ return class;
+ }
+#endif
+
+ ret = object_class_dynamic_cast(class, typename);
+ if (!ret && class) {
+ fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n",
+ file, line, func, class, typename);
+ abort();
+ }
+
+#ifdef CONFIG_QOM_CAST_DEBUG
+ if (class && ret == class) {
+ for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) {
+ qatomic_set(&class->class_cast_cache[i - 1],
+ qatomic_read(&class->class_cast_cache[i]));
+ }
+ qatomic_set(&class->class_cast_cache[i - 1], typename);
+ }
+out:
+#endif
+ return ret;
+}
+
+const char *object_get_typename(const Object *obj)
+{
+ return obj->class->type->name;
+}
+
+ObjectClass *object_get_class(Object *obj)
+{
+ return obj->class;
+}
+
+bool object_class_is_abstract(ObjectClass *klass)
+{
+ return klass->type->abstract;
+}
+
+const char *object_class_get_name(ObjectClass *klass)
+{
+ return klass->type->name;
+}
+
+ObjectClass *object_class_by_name(const char *typename)
+{
+ TypeImpl *type = type_get_by_name(typename);
+
+ if (!type) {
+ return NULL;
+ }
+
+ type_initialize(type);
+
+ return type->class;
+}
+
+ObjectClass *module_object_class_by_name(const char *typename)
+{
+ ObjectClass *oc;
+
+ oc = object_class_by_name(typename);
+#ifdef CONFIG_MODULES
+ if (!oc) {
+ module_load_qom_one(typename);
+ oc = object_class_by_name(typename);
+ }
+#endif
+ return oc;
+}
+
+ObjectClass *object_class_get_parent(ObjectClass *class)
+{
+ TypeImpl *type = type_get_parent(class->type);
+
+ if (!type) {
+ return NULL;
+ }
+
+ type_initialize(type);
+
+ return type->class;
+}
+
+typedef struct OCFData
+{
+ void (*fn)(ObjectClass *klass, void *opaque);
+ const char *implements_type;
+ bool include_abstract;
+ void *opaque;
+} OCFData;
+
+static void object_class_foreach_tramp(gpointer key, gpointer value,
+ gpointer opaque)
+{
+ OCFData *data = opaque;
+ TypeImpl *type = value;
+ ObjectClass *k;
+
+ type_initialize(type);
+ k = type->class;
+
+ if (!data->include_abstract && type->abstract) {
+ return;
+ }
+
+ if (data->implements_type &&
+ !object_class_dynamic_cast(k, data->implements_type)) {
+ return;
+ }
+
+ data->fn(k, data->opaque);
+}
+
+void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque),
+ const char *implements_type, bool include_abstract,
+ void *opaque)
+{
+ OCFData data = { fn, implements_type, include_abstract, opaque };
+
+ enumerating_types = true;
+ g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data);
+ enumerating_types = false;
+}
+
+static int do_object_child_foreach(Object *obj,
+ int (*fn)(Object *child, void *opaque),
+ void *opaque, bool recurse)
+{
+ GHashTableIter iter;
+ ObjectProperty *prop;
+ int ret = 0;
+
+ g_hash_table_iter_init(&iter, obj->properties);
+ while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) {
+ if (object_property_is_child(prop)) {
+ Object *child = prop->opaque;
+
+ ret = fn(child, opaque);
+ if (ret != 0) {
+ break;
+ }
+ if (recurse) {
+ ret = do_object_child_foreach(child, fn, opaque, true);
+ if (ret != 0) {
+ break;
+ }
+ }
+ }
+ }
+ return ret;
+}
+
+int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque),
+ void *opaque)
+{
+ return do_object_child_foreach(obj, fn, opaque, false);
+}
+
+int object_child_foreach_recursive(Object *obj,
+ int (*fn)(Object *child, void *opaque),
+ void *opaque)
+{
+ return do_object_child_foreach(obj, fn, opaque, true);
+}
+
+static void object_class_get_list_tramp(ObjectClass *klass, void *opaque)
+{
+ GSList **list = opaque;
+
+ *list = g_slist_prepend(*list, klass);
+}
+
+GSList *object_class_get_list(const char *implements_type,
+ bool include_abstract)
+{
+ GSList *list = NULL;
+
+ object_class_foreach(object_class_get_list_tramp,
+ implements_type, include_abstract, &list);
+ return list;
+}
+
+static gint object_class_cmp(gconstpointer a, gconstpointer b)
+{
+ return strcasecmp(object_class_get_name((ObjectClass *)a),
+ object_class_get_name((ObjectClass *)b));
+}
+
+GSList *object_class_get_list_sorted(const char *implements_type,
+ bool include_abstract)
+{
+ return g_slist_sort(object_class_get_list(implements_type, include_abstract),
+ object_class_cmp);
+}
+
+Object *object_ref(void *objptr)
+{
+ Object *obj = OBJECT(objptr);
+ if (!obj) {
+ return NULL;
+ }
+ qatomic_inc(&obj->ref);
+ return obj;
+}
+
+void object_unref(void *objptr)
+{
+ Object *obj = OBJECT(objptr);
+ if (!obj) {
+ return;
+ }
+ g_assert(obj->ref > 0);
+
+ /* parent always holds a reference to its children */
+ if (qatomic_fetch_dec(&obj->ref) == 1) {
+ object_finalize(obj);
+ }
+}
+
+ObjectProperty *
+object_property_try_add(Object *obj, const char *name, const char *type,
+ ObjectPropertyAccessor *get,
+ ObjectPropertyAccessor *set,
+ ObjectPropertyRelease *release,
+ void *opaque, Error **errp)
+{
+ ObjectProperty *prop;
+ size_t name_len = strlen(name);
+
+ if (name_len >= 3 && !memcmp(name + name_len - 3, "[*]", 4)) {
+ int i;
+ ObjectProperty *ret = NULL;
+ char *name_no_array = g_strdup(name);
+
+ name_no_array[name_len - 3] = '\0';
+ for (i = 0; i < INT16_MAX; ++i) {
+ char *full_name = g_strdup_printf("%s[%d]", name_no_array, i);
+
+ ret = object_property_try_add(obj, full_name, type, get, set,
+ release, opaque, NULL);
+ g_free(full_name);
+ if (ret) {
+ break;
+ }
+ }
+ g_free(name_no_array);
+ assert(ret);
+ return ret;
+ }
+
+ if (object_property_find(obj, name) != NULL) {
+ error_setg(errp, "attempt to add duplicate property '%s' to object (type '%s')",
+ name, object_get_typename(obj));
+ return NULL;
+ }
+
+ prop = g_malloc0(sizeof(*prop));
+
+ prop->name = g_strdup(name);
+ prop->type = g_strdup(type);
+
+ prop->get = get;
+ prop->set = set;
+ prop->release = release;
+ prop->opaque = opaque;
+
+ g_hash_table_insert(obj->properties, prop->name, prop);
+ return prop;
+}
+
+ObjectProperty *
+object_property_add(Object *obj, const char *name, const char *type,
+ ObjectPropertyAccessor *get,
+ ObjectPropertyAccessor *set,
+ ObjectPropertyRelease *release,
+ void *opaque)
+{
+ return object_property_try_add(obj, name, type, get, set, release,
+ opaque, &error_abort);
+}
+
+ObjectProperty *
+object_class_property_add(ObjectClass *klass,
+ const char *name,
+ const char *type,
+ ObjectPropertyAccessor *get,
+ ObjectPropertyAccessor *set,
+ ObjectPropertyRelease *release,
+ void *opaque)
+{
+ ObjectProperty *prop;
+
+ assert(!object_class_property_find(klass, name));
+
+ prop = g_malloc0(sizeof(*prop));
+
+ prop->name = g_strdup(name);
+ prop->type = g_strdup(type);
+
+ prop->get = get;
+ prop->set = set;
+ prop->release = release;
+ prop->opaque = opaque;
+
+ g_hash_table_insert(klass->properties, prop->name, prop);
+
+ return prop;
+}
+
+ObjectProperty *object_property_find(Object *obj, const char *name)
+{
+ ObjectProperty *prop;
+ ObjectClass *klass = object_get_class(obj);
+
+ prop = object_class_property_find(klass, name);
+ if (prop) {
+ return prop;
+ }
+
+ return g_hash_table_lookup(obj->properties, name);
+}
+
+ObjectProperty *object_property_find_err(Object *obj, const char *name,
+ Error **errp)
+{
+ ObjectProperty *prop = object_property_find(obj, name);
+ if (!prop) {
+ error_setg(errp, "Property '%s.%s' not found",
+ object_get_typename(obj), name);
+ }
+ return prop;
+}
+
+void object_property_iter_init(ObjectPropertyIterator *iter,
+ Object *obj)
+{
+ g_hash_table_iter_init(&iter->iter, obj->properties);
+ iter->nextclass = object_get_class(obj);
+}
+
+ObjectProperty *object_property_iter_next(ObjectPropertyIterator *iter)
+{
+ gpointer key, val;
+ while (!g_hash_table_iter_next(&iter->iter, &key, &val)) {
+ if (!iter->nextclass) {
+ return NULL;
+ }
+ g_hash_table_iter_init(&iter->iter, iter->nextclass->properties);
+ iter->nextclass = object_class_get_parent(iter->nextclass);
+ }
+ return val;
+}
+
+void object_class_property_iter_init(ObjectPropertyIterator *iter,
+ ObjectClass *klass)
+{
+ g_hash_table_iter_init(&iter->iter, klass->properties);
+ iter->nextclass = object_class_get_parent(klass);
+}
+
+ObjectProperty *object_class_property_find(ObjectClass *klass, const char *name)
+{
+ ObjectClass *parent_klass;
+
+ parent_klass = object_class_get_parent(klass);
+ if (parent_klass) {
+ ObjectProperty *prop =
+ object_class_property_find(parent_klass, name);
+ if (prop) {
+ return prop;
+ }
+ }
+
+ return g_hash_table_lookup(klass->properties, name);
+}
+
+ObjectProperty *object_class_property_find_err(ObjectClass *klass,
+ const char *name,
+ Error **errp)
+{
+ ObjectProperty *prop = object_class_property_find(klass, name);
+ if (!prop) {
+ error_setg(errp, "Property '.%s' not found", name);
+ }
+ return prop;
+}
+
+
+void object_property_del(Object *obj, const char *name)
+{
+ ObjectProperty *prop = g_hash_table_lookup(obj->properties, name);
+
+ if (prop->release) {
+ prop->release(obj, name, prop->opaque);
+ }
+ g_hash_table_remove(obj->properties, name);
+}
+
+bool object_property_get(Object *obj, const char *name, Visitor *v,
+ Error **errp)
+{
+ Error *err = NULL;
+ ObjectProperty *prop = object_property_find_err(obj, name, errp);
+
+ if (prop == NULL) {
+ return false;
+ }
+
+ if (!prop->get) {
+ error_setg(errp, QERR_PERMISSION_DENIED);
+ return false;
+ }
+ prop->get(obj, v, name, prop->opaque, &err);
+ error_propagate(errp, err);
+ return !err;
+}
+
+bool object_property_set(Object *obj, const char *name, Visitor *v,
+ Error **errp)
+{
+ ERRP_GUARD();
+ ObjectProperty *prop = object_property_find_err(obj, name, errp);
+
+ if (prop == NULL) {
+ return false;
+ }
+
+ if (!prop->set) {
+ error_setg(errp, QERR_PERMISSION_DENIED);
+ return false;
+ }
+ prop->set(obj, v, name, prop->opaque, errp);
+ return !*errp;
+}
+
+bool object_property_set_str(Object *obj, const char *name,
+ const char *value, Error **errp)
+{
+ QString *qstr = qstring_from_str(value);
+ bool ok = object_property_set_qobject(obj, name, QOBJECT(qstr), errp);
+
+ qobject_unref(qstr);
+ return ok;
+}
+
+char *object_property_get_str(Object *obj, const char *name,
+ Error **errp)
+{
+ QObject *ret = object_property_get_qobject(obj, name, errp);
+ QString *qstring;
+ char *retval;
+
+ if (!ret) {
+ return NULL;
+ }
+ qstring = qobject_to(QString, ret);
+ if (!qstring) {
+ error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "string");
+ retval = NULL;
+ } else {
+ retval = g_strdup(qstring_get_str(qstring));
+ }
+
+ qobject_unref(ret);
+ return retval;
+}
+
+bool object_property_set_link(Object *obj, const char *name,
+ Object *value, Error **errp)
+{
+ g_autofree char *path = NULL;
+
+ if (value) {
+ path = object_get_canonical_path(value);
+ }
+ return object_property_set_str(obj, name, path ?: "", errp);
+}
+
+Object *object_property_get_link(Object *obj, const char *name,
+ Error **errp)
+{
+ char *str = object_property_get_str(obj, name, errp);
+ Object *target = NULL;
+
+ if (str && *str) {
+ target = object_resolve_path(str, NULL);
+ if (!target) {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", str);
+ }
+ }
+
+ g_free(str);
+ return target;
+}
+
+bool object_property_set_bool(Object *obj, const char *name,
+ bool value, Error **errp)
+{
+ QBool *qbool = qbool_from_bool(value);
+ bool ok = object_property_set_qobject(obj, name, QOBJECT(qbool), errp);
+
+ qobject_unref(qbool);
+ return ok;
+}
+
+bool object_property_get_bool(Object *obj, const char *name,
+ Error **errp)
+{
+ QObject *ret = object_property_get_qobject(obj, name, errp);
+ QBool *qbool;
+ bool retval;
+
+ if (!ret) {
+ return false;
+ }
+ qbool = qobject_to(QBool, ret);
+ if (!qbool) {
+ error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean");
+ retval = false;
+ } else {
+ retval = qbool_get_bool(qbool);
+ }
+
+ qobject_unref(ret);
+ return retval;
+}
+
+bool object_property_set_int(Object *obj, const char *name,
+ int64_t value, Error **errp)
+{
+ QNum *qnum = qnum_from_int(value);
+ bool ok = object_property_set_qobject(obj, name, QOBJECT(qnum), errp);
+
+ qobject_unref(qnum);
+ return ok;
+}
+
+int64_t object_property_get_int(Object *obj, const char *name,
+ Error **errp)
+{
+ QObject *ret = object_property_get_qobject(obj, name, errp);
+ QNum *qnum;
+ int64_t retval;
+
+ if (!ret) {
+ return -1;
+ }
+
+ qnum = qobject_to(QNum, ret);
+ if (!qnum || !qnum_get_try_int(qnum, &retval)) {
+ error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "int");
+ retval = -1;
+ }
+
+ qobject_unref(ret);
+ return retval;
+}
+
+static void object_property_init_defval(Object *obj, ObjectProperty *prop)
+{
+ Visitor *v = qobject_input_visitor_new(prop->defval);
+
+ assert(prop->set != NULL);
+ prop->set(obj, v, prop->name, prop->opaque, &error_abort);
+
+ visit_free(v);
+}
+
+static void object_property_set_default(ObjectProperty *prop, QObject *defval)
+{
+ assert(!prop->defval);
+ assert(!prop->init);
+
+ prop->defval = defval;
+ prop->init = object_property_init_defval;
+}
+
+void object_property_set_default_bool(ObjectProperty *prop, bool value)
+{
+ object_property_set_default(prop, QOBJECT(qbool_from_bool(value)));
+}
+
+void object_property_set_default_str(ObjectProperty *prop, const char *value)
+{
+ object_property_set_default(prop, QOBJECT(qstring_from_str(value)));
+}
+
+void object_property_set_default_int(ObjectProperty *prop, int64_t value)
+{
+ object_property_set_default(prop, QOBJECT(qnum_from_int(value)));
+}
+
+void object_property_set_default_uint(ObjectProperty *prop, uint64_t value)
+{
+ object_property_set_default(prop, QOBJECT(qnum_from_uint(value)));
+}
+
+bool object_property_set_uint(Object *obj, const char *name,
+ uint64_t value, Error **errp)
+{
+ QNum *qnum = qnum_from_uint(value);
+ bool ok = object_property_set_qobject(obj, name, QOBJECT(qnum), errp);
+
+ qobject_unref(qnum);
+ return ok;
+}
+
+uint64_t object_property_get_uint(Object *obj, const char *name,
+ Error **errp)
+{
+ QObject *ret = object_property_get_qobject(obj, name, errp);
+ QNum *qnum;
+ uint64_t retval;
+
+ if (!ret) {
+ return 0;
+ }
+ qnum = qobject_to(QNum, ret);
+ if (!qnum || !qnum_get_try_uint(qnum, &retval)) {
+ error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "uint");
+ retval = 0;
+ }
+
+ qobject_unref(ret);
+ return retval;
+}
+
+typedef struct EnumProperty {
+ const QEnumLookup *lookup;
+ int (*get)(Object *, Error **);
+ void (*set)(Object *, int, Error **);
+} EnumProperty;
+
+int object_property_get_enum(Object *obj, const char *name,
+ const char *typename, Error **errp)
+{
+ char *str;
+ int ret;
+ ObjectProperty *prop = object_property_find_err(obj, name, errp);
+ EnumProperty *enumprop;
+
+ if (prop == NULL) {
+ return -1;
+ }
+
+ if (!g_str_equal(prop->type, typename)) {
+ error_setg(errp, "Property %s on %s is not '%s' enum type",
+ name, object_class_get_name(
+ object_get_class(obj)), typename);
+ return -1;
+ }
+
+ enumprop = prop->opaque;
+
+ str = object_property_get_str(obj, name, errp);
+ if (!str) {
+ return -1;
+ }
+
+ ret = qapi_enum_parse(enumprop->lookup, str, -1, errp);
+ g_free(str);
+
+ return ret;
+}
+
+bool object_property_parse(Object *obj, const char *name,
+ const char *string, Error **errp)
+{
+ Visitor *v = string_input_visitor_new(string);
+ bool ok = object_property_set(obj, name, v, errp);
+
+ visit_free(v);
+ return ok;
+}
+
+char *object_property_print(Object *obj, const char *name, bool human,
+ Error **errp)
+{
+ Visitor *v;
+ char *string = NULL;
+
+ v = string_output_visitor_new(human, &string);
+ if (!object_property_get(obj, name, v, errp)) {
+ goto out;
+ }
+
+ visit_complete(v, &string);
+
+out:
+ visit_free(v);
+ return string;
+}
+
+const char *object_property_get_type(Object *obj, const char *name, Error **errp)
+{
+ ObjectProperty *prop = object_property_find_err(obj, name, errp);
+ if (prop == NULL) {
+ return NULL;
+ }
+
+ return prop->type;
+}
+
+Object *object_get_root(void)
+{
+ static Object *root;
+
+ if (!root) {
+ root = object_new("container");
+ }
+
+ return root;
+}
+
+Object *object_get_objects_root(void)
+{
+ return container_get(object_get_root(), "/objects");
+}
+
+Object *object_get_internal_root(void)
+{
+ static Object *internal_root;
+
+ if (!internal_root) {
+ internal_root = object_new("container");
+ }
+
+ return internal_root;
+}
+
+static void object_get_child_property(Object *obj, Visitor *v,
+ const char *name, void *opaque,
+ Error **errp)
+{
+ Object *child = opaque;
+ char *path;
+
+ path = object_get_canonical_path(child);
+ visit_type_str(v, name, &path, errp);
+ g_free(path);
+}
+
+static Object *object_resolve_child_property(Object *parent, void *opaque,
+ const char *part)
+{
+ return opaque;
+}
+
+static void object_finalize_child_property(Object *obj, const char *name,
+ void *opaque)
+{
+ Object *child = opaque;
+
+ if (child->class->unparent) {
+ (child->class->unparent)(child);
+ }
+ child->parent = NULL;
+ object_unref(child);
+}
+
+ObjectProperty *
+object_property_try_add_child(Object *obj, const char *name,
+ Object *child, Error **errp)
+{
+ g_autofree char *type = NULL;
+ ObjectProperty *op;
+
+ assert(!child->parent);
+
+ type = g_strdup_printf("child<%s>", object_get_typename(child));
+
+ op = object_property_try_add(obj, name, type, object_get_child_property,
+ NULL, object_finalize_child_property,
+ child, errp);
+ if (!op) {
+ return NULL;
+ }
+ op->resolve = object_resolve_child_property;
+ object_ref(child);
+ child->parent = obj;
+ return op;
+}
+
+ObjectProperty *
+object_property_add_child(Object *obj, const char *name,
+ Object *child)
+{
+ return object_property_try_add_child(obj, name, child, &error_abort);
+}
+
+void object_property_allow_set_link(const Object *obj, const char *name,
+ Object *val, Error **errp)
+{
+ /* Allow the link to be set, always */
+}
+
+typedef struct {
+ union {
+ Object **targetp;
+ Object *target; /* if OBJ_PROP_LINK_DIRECT, when holding the pointer */
+ ptrdiff_t offset; /* if OBJ_PROP_LINK_CLASS */
+ };
+ void (*check)(const Object *, const char *, Object *, Error **);
+ ObjectPropertyLinkFlags flags;
+} LinkProperty;
+
+static Object **
+object_link_get_targetp(Object *obj, LinkProperty *lprop)
+{
+ if (lprop->flags & OBJ_PROP_LINK_DIRECT) {
+ return &lprop->target;
+ } else if (lprop->flags & OBJ_PROP_LINK_CLASS) {
+ return (void *)obj + lprop->offset;
+ } else {
+ return lprop->targetp;
+ }
+}
+
+static void object_get_link_property(Object *obj, Visitor *v,
+ const char *name, void *opaque,
+ Error **errp)
+{
+ LinkProperty *lprop = opaque;
+ Object **targetp = object_link_get_targetp(obj, lprop);
+ char *path;
+
+ if (*targetp) {
+ path = object_get_canonical_path(*targetp);
+ visit_type_str(v, name, &path, errp);
+ g_free(path);
+ } else {
+ path = (char *)"";
+ visit_type_str(v, name, &path, errp);
+ }
+}
+
+/*
+ * object_resolve_link:
+ *
+ * Lookup an object and ensure its type matches the link property type. This
+ * is similar to object_resolve_path() except type verification against the
+ * link property is performed.
+ *
+ * Returns: The matched object or NULL on path lookup failures.
+ */
+static Object *object_resolve_link(Object *obj, const char *name,
+ const char *path, Error **errp)
+{
+ const char *type;
+ char *target_type;
+ bool ambiguous = false;
+ Object *target;
+
+ /* Go from link<FOO> to FOO. */
+ type = object_property_get_type(obj, name, NULL);
+ target_type = g_strndup(&type[5], strlen(type) - 6);
+ target = object_resolve_path_type(path, target_type, &ambiguous);
+
+ if (ambiguous) {
+ error_setg(errp, "Path '%s' does not uniquely identify an object",
+ path);
+ } else if (!target) {
+ target = object_resolve_path(path, &ambiguous);
+ if (target || ambiguous) {
+ error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type);
+ } else {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", path);
+ }
+ target = NULL;
+ }
+ g_free(target_type);
+
+ return target;
+}
+
+static void object_set_link_property(Object *obj, Visitor *v,
+ const char *name, void *opaque,
+ Error **errp)
+{
+ Error *local_err = NULL;
+ LinkProperty *prop = opaque;
+ Object **targetp = object_link_get_targetp(obj, prop);
+ Object *old_target = *targetp;
+ Object *new_target;
+ char *path = NULL;
+
+ if (!visit_type_str(v, name, &path, errp)) {
+ return;
+ }
+
+ if (*path) {
+ new_target = object_resolve_link(obj, name, path, errp);
+ if (!new_target) {
+ g_free(path);
+ return;
+ }
+ } else {
+ new_target = NULL;
+ }
+
+ g_free(path);
+
+ prop->check(obj, name, new_target, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ *targetp = new_target;
+ if (prop->flags & OBJ_PROP_LINK_STRONG) {
+ object_ref(new_target);
+ object_unref(old_target);
+ }
+}
+
+static Object *object_resolve_link_property(Object *parent, void *opaque,
+ const char *part)
+{
+ LinkProperty *lprop = opaque;
+
+ return *object_link_get_targetp(parent, lprop);
+}
+
+static void object_release_link_property(Object *obj, const char *name,
+ void *opaque)
+{
+ LinkProperty *prop = opaque;
+ Object **targetp = object_link_get_targetp(obj, prop);
+
+ if ((prop->flags & OBJ_PROP_LINK_STRONG) && *targetp) {
+ object_unref(*targetp);
+ }
+ if (!(prop->flags & OBJ_PROP_LINK_CLASS)) {
+ g_free(prop);
+ }
+}
+
+static ObjectProperty *
+object_add_link_prop(Object *obj, const char *name,
+ const char *type, void *ptr,
+ void (*check)(const Object *, const char *,
+ Object *, Error **),
+ ObjectPropertyLinkFlags flags)
+{
+ LinkProperty *prop = g_malloc(sizeof(*prop));
+ g_autofree char *full_type = NULL;
+ ObjectProperty *op;
+
+ if (flags & OBJ_PROP_LINK_DIRECT) {
+ prop->target = ptr;
+ } else {
+ prop->targetp = ptr;
+ }
+ prop->check = check;
+ prop->flags = flags;
+
+ full_type = g_strdup_printf("link<%s>", type);
+
+ op = object_property_add(obj, name, full_type,
+ object_get_link_property,
+ check ? object_set_link_property : NULL,
+ object_release_link_property,
+ prop);
+ op->resolve = object_resolve_link_property;
+ return op;
+}
+
+ObjectProperty *
+object_property_add_link(Object *obj, const char *name,
+ const char *type, Object **targetp,
+ void (*check)(const Object *, const char *,
+ Object *, Error **),
+ ObjectPropertyLinkFlags flags)
+{
+ return object_add_link_prop(obj, name, type, targetp, check, flags);
+}
+
+ObjectProperty *
+object_class_property_add_link(ObjectClass *oc,
+ const char *name,
+ const char *type, ptrdiff_t offset,
+ void (*check)(const Object *obj, const char *name,
+ Object *val, Error **errp),
+ ObjectPropertyLinkFlags flags)
+{
+ LinkProperty *prop = g_new0(LinkProperty, 1);
+ char *full_type;
+ ObjectProperty *op;
+
+ prop->offset = offset;
+ prop->check = check;
+ prop->flags = flags | OBJ_PROP_LINK_CLASS;
+
+ full_type = g_strdup_printf("link<%s>", type);
+
+ op = object_class_property_add(oc, name, full_type,
+ object_get_link_property,
+ check ? object_set_link_property : NULL,
+ object_release_link_property,
+ prop);
+
+ op->resolve = object_resolve_link_property;
+
+ g_free(full_type);
+ return op;
+}
+
+ObjectProperty *
+object_property_add_const_link(Object *obj, const char *name,
+ Object *target)
+{
+ return object_add_link_prop(obj, name,
+ object_get_typename(target), target,
+ NULL, OBJ_PROP_LINK_DIRECT);
+}
+
+const char *object_get_canonical_path_component(const Object *obj)
+{
+ ObjectProperty *prop = NULL;
+ GHashTableIter iter;
+
+ if (obj->parent == NULL) {
+ return NULL;
+ }
+
+ g_hash_table_iter_init(&iter, obj->parent->properties);
+ while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) {
+ if (!object_property_is_child(prop)) {
+ continue;
+ }
+
+ if (prop->opaque == obj) {
+ return prop->name;
+ }
+ }
+
+ /* obj had a parent but was not a child, should never happen */
+ g_assert_not_reached();
+ return NULL;
+}
+
+char *object_get_canonical_path(const Object *obj)
+{
+ Object *root = object_get_root();
+ char *newpath, *path = NULL;
+
+ if (obj == root) {
+ return g_strdup("/");
+ }
+
+ do {
+ const char *component = object_get_canonical_path_component(obj);
+
+ if (!component) {
+ /* A canonical path must be complete, so discard what was
+ * collected so far.
+ */
+ g_free(path);
+ return NULL;
+ }
+
+ newpath = g_strdup_printf("/%s%s", component, path ? path : "");
+ g_free(path);
+ path = newpath;
+ obj = obj->parent;
+ } while (obj != root);
+
+ return path;
+}
+
+Object *object_resolve_path_component(Object *parent, const char *part)
+{
+ ObjectProperty *prop = object_property_find(parent, part);
+ if (prop == NULL) {
+ return NULL;
+ }
+
+ if (prop->resolve) {
+ return prop->resolve(parent, prop->opaque, part);
+ } else {
+ return NULL;
+ }
+}
+
+static Object *object_resolve_abs_path(Object *parent,
+ char **parts,
+ const char *typename)
+{
+ Object *child;
+
+ if (*parts == NULL) {
+ return object_dynamic_cast(parent, typename);
+ }
+
+ if (strcmp(*parts, "") == 0) {
+ return object_resolve_abs_path(parent, parts + 1, typename);
+ }
+
+ child = object_resolve_path_component(parent, *parts);
+ if (!child) {
+ return NULL;
+ }
+
+ return object_resolve_abs_path(child, parts + 1, typename);
+}
+
+static Object *object_resolve_partial_path(Object *parent,
+ char **parts,
+ const char *typename,
+ bool *ambiguous)
+{
+ Object *obj;
+ GHashTableIter iter;
+ ObjectProperty *prop;
+
+ obj = object_resolve_abs_path(parent, parts, typename);
+
+ g_hash_table_iter_init(&iter, parent->properties);
+ while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) {
+ Object *found;
+
+ if (!object_property_is_child(prop)) {
+ continue;
+ }
+
+ found = object_resolve_partial_path(prop->opaque, parts,
+ typename, ambiguous);
+ if (found) {
+ if (obj) {
+ *ambiguous = true;
+ return NULL;
+ }
+ obj = found;
+ }
+
+ if (*ambiguous) {
+ return NULL;
+ }
+ }
+
+ return obj;
+}
+
+Object *object_resolve_path_type(const char *path, const char *typename,
+ bool *ambiguousp)
+{
+ Object *obj;
+ char **parts;
+
+ parts = g_strsplit(path, "/", 0);
+ assert(parts);
+
+ if (parts[0] == NULL || strcmp(parts[0], "") != 0) {
+ bool ambiguous = false;
+ obj = object_resolve_partial_path(object_get_root(), parts,
+ typename, &ambiguous);
+ if (ambiguousp) {
+ *ambiguousp = ambiguous;
+ }
+ } else {
+ obj = object_resolve_abs_path(object_get_root(), parts + 1, typename);
+ }
+
+ g_strfreev(parts);
+
+ return obj;
+}
+
+Object *object_resolve_path(const char *path, bool *ambiguous)
+{
+ return object_resolve_path_type(path, TYPE_OBJECT, ambiguous);
+}
+
+Object *object_resolve_path_at(Object *parent, const char *path)
+{
+ g_auto(GStrv) parts = g_strsplit(path, "/", 0);
+
+ if (*path == '/') {
+ return object_resolve_abs_path(object_get_root(), parts + 1,
+ TYPE_OBJECT);
+ }
+ return object_resolve_abs_path(parent, parts, TYPE_OBJECT);
+}
+
+typedef struct StringProperty
+{
+ char *(*get)(Object *, Error **);
+ void (*set)(Object *, const char *, Error **);
+} StringProperty;
+
+static void property_get_str(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ StringProperty *prop = opaque;
+ char *value;
+ Error *err = NULL;
+
+ value = prop->get(obj, &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ visit_type_str(v, name, &value, errp);
+ g_free(value);
+}
+
+static void property_set_str(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ StringProperty *prop = opaque;
+ char *value;
+
+ if (!visit_type_str(v, name, &value, errp)) {
+ return;
+ }
+
+ prop->set(obj, value, errp);
+ g_free(value);
+}
+
+static void property_release_data(Object *obj, const char *name,
+ void *opaque)
+{
+ g_free(opaque);
+}
+
+ObjectProperty *
+object_property_add_str(Object *obj, const char *name,
+ char *(*get)(Object *, Error **),
+ void (*set)(Object *, const char *, Error **))
+{
+ StringProperty *prop = g_malloc0(sizeof(*prop));
+
+ prop->get = get;
+ prop->set = set;
+
+ return object_property_add(obj, name, "string",
+ get ? property_get_str : NULL,
+ set ? property_set_str : NULL,
+ property_release_data,
+ prop);
+}
+
+ObjectProperty *
+object_class_property_add_str(ObjectClass *klass, const char *name,
+ char *(*get)(Object *, Error **),
+ void (*set)(Object *, const char *,
+ Error **))
+{
+ StringProperty *prop = g_malloc0(sizeof(*prop));
+
+ prop->get = get;
+ prop->set = set;
+
+ return object_class_property_add(klass, name, "string",
+ get ? property_get_str : NULL,
+ set ? property_set_str : NULL,
+ NULL,
+ prop);
+}
+
+typedef struct BoolProperty
+{
+ bool (*get)(Object *, Error **);
+ void (*set)(Object *, bool, Error **);
+} BoolProperty;
+
+static void property_get_bool(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ BoolProperty *prop = opaque;
+ bool value;
+ Error *err = NULL;
+
+ value = prop->get(obj, &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ visit_type_bool(v, name, &value, errp);
+}
+
+static void property_set_bool(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ BoolProperty *prop = opaque;
+ bool value;
+
+ if (!visit_type_bool(v, name, &value, errp)) {
+ return;
+ }
+
+ prop->set(obj, value, errp);
+}
+
+ObjectProperty *
+object_property_add_bool(Object *obj, const char *name,
+ bool (*get)(Object *, Error **),
+ void (*set)(Object *, bool, Error **))
+{
+ BoolProperty *prop = g_malloc0(sizeof(*prop));
+
+ prop->get = get;
+ prop->set = set;
+
+ return object_property_add(obj, name, "bool",
+ get ? property_get_bool : NULL,
+ set ? property_set_bool : NULL,
+ property_release_data,
+ prop);
+}
+
+ObjectProperty *
+object_class_property_add_bool(ObjectClass *klass, const char *name,
+ bool (*get)(Object *, Error **),
+ void (*set)(Object *, bool, Error **))
+{
+ BoolProperty *prop = g_malloc0(sizeof(*prop));
+
+ prop->get = get;
+ prop->set = set;
+
+ return object_class_property_add(klass, name, "bool",
+ get ? property_get_bool : NULL,
+ set ? property_set_bool : NULL,
+ NULL,
+ prop);
+}
+
+static void property_get_enum(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ EnumProperty *prop = opaque;
+ int value;
+ Error *err = NULL;
+
+ value = prop->get(obj, &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ visit_type_enum(v, name, &value, prop->lookup, errp);
+}
+
+static void property_set_enum(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ EnumProperty *prop = opaque;
+ int value;
+
+ if (!visit_type_enum(v, name, &value, prop->lookup, errp)) {
+ return;
+ }
+ prop->set(obj, value, errp);
+}
+
+ObjectProperty *
+object_property_add_enum(Object *obj, const char *name,
+ const char *typename,
+ const QEnumLookup *lookup,
+ int (*get)(Object *, Error **),
+ void (*set)(Object *, int, Error **))
+{
+ EnumProperty *prop = g_malloc(sizeof(*prop));
+
+ prop->lookup = lookup;
+ prop->get = get;
+ prop->set = set;
+
+ return object_property_add(obj, name, typename,
+ get ? property_get_enum : NULL,
+ set ? property_set_enum : NULL,
+ property_release_data,
+ prop);
+}
+
+ObjectProperty *
+object_class_property_add_enum(ObjectClass *klass, const char *name,
+ const char *typename,
+ const QEnumLookup *lookup,
+ int (*get)(Object *, Error **),
+ void (*set)(Object *, int, Error **))
+{
+ EnumProperty *prop = g_malloc(sizeof(*prop));
+
+ prop->lookup = lookup;
+ prop->get = get;
+ prop->set = set;
+
+ return object_class_property_add(klass, name, typename,
+ get ? property_get_enum : NULL,
+ set ? property_set_enum : NULL,
+ NULL,
+ prop);
+}
+
+typedef struct TMProperty {
+ void (*get)(Object *, struct tm *, Error **);
+} TMProperty;
+
+static void property_get_tm(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ TMProperty *prop = opaque;
+ Error *err = NULL;
+ struct tm value;
+
+ prop->get(obj, &value, &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ if (!visit_start_struct(v, name, NULL, 0, errp)) {
+ return;
+ }
+ if (!visit_type_int32(v, "tm_year", &value.tm_year, errp)) {
+ goto out_end;
+ }
+ if (!visit_type_int32(v, "tm_mon", &value.tm_mon, errp)) {
+ goto out_end;
+ }
+ if (!visit_type_int32(v, "tm_mday", &value.tm_mday, errp)) {
+ goto out_end;
+ }
+ if (!visit_type_int32(v, "tm_hour", &value.tm_hour, errp)) {
+ goto out_end;
+ }
+ if (!visit_type_int32(v, "tm_min", &value.tm_min, errp)) {
+ goto out_end;
+ }
+ if (!visit_type_int32(v, "tm_sec", &value.tm_sec, errp)) {
+ goto out_end;
+ }
+ visit_check_struct(v, errp);
+out_end:
+ visit_end_struct(v, NULL);
+}
+
+ObjectProperty *
+object_property_add_tm(Object *obj, const char *name,
+ void (*get)(Object *, struct tm *, Error **))
+{
+ TMProperty *prop = g_malloc0(sizeof(*prop));
+
+ prop->get = get;
+
+ return object_property_add(obj, name, "struct tm",
+ get ? property_get_tm : NULL, NULL,
+ property_release_data,
+ prop);
+}
+
+ObjectProperty *
+object_class_property_add_tm(ObjectClass *klass, const char *name,
+ void (*get)(Object *, struct tm *, Error **))
+{
+ TMProperty *prop = g_malloc0(sizeof(*prop));
+
+ prop->get = get;
+
+ return object_class_property_add(klass, name, "struct tm",
+ get ? property_get_tm : NULL,
+ NULL, NULL, prop);
+}
+
+static char *object_get_type(Object *obj, Error **errp)
+{
+ return g_strdup(object_get_typename(obj));
+}
+
+static void property_get_uint8_ptr(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ uint8_t value = *(uint8_t *)opaque;
+ visit_type_uint8(v, name, &value, errp);
+}
+
+static void property_set_uint8_ptr(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ uint8_t *field = opaque;
+ uint8_t value;
+
+ if (!visit_type_uint8(v, name, &value, errp)) {
+ return;
+ }
+
+ *field = value;
+}
+
+static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ uint16_t value = *(uint16_t *)opaque;
+ visit_type_uint16(v, name, &value, errp);
+}
+
+static void property_set_uint16_ptr(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ uint16_t *field = opaque;
+ uint16_t value;
+
+ if (!visit_type_uint16(v, name, &value, errp)) {
+ return;
+ }
+
+ *field = value;
+}
+
+static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ uint32_t value = *(uint32_t *)opaque;
+ visit_type_uint32(v, name, &value, errp);
+}
+
+static void property_set_uint32_ptr(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ uint32_t *field = opaque;
+ uint32_t value;
+
+ if (!visit_type_uint32(v, name, &value, errp)) {
+ return;
+ }
+
+ *field = value;
+}
+
+static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ uint64_t value = *(uint64_t *)opaque;
+ visit_type_uint64(v, name, &value, errp);
+}
+
+static void property_set_uint64_ptr(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ uint64_t *field = opaque;
+ uint64_t value;
+
+ if (!visit_type_uint64(v, name, &value, errp)) {
+ return;
+ }
+
+ *field = value;
+}
+
+ObjectProperty *
+object_property_add_uint8_ptr(Object *obj, const char *name,
+ const uint8_t *v,
+ ObjectPropertyFlags flags)
+{
+ ObjectPropertyAccessor *getter = NULL;
+ ObjectPropertyAccessor *setter = NULL;
+
+ if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
+ getter = property_get_uint8_ptr;
+ }
+
+ if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
+ setter = property_set_uint8_ptr;
+ }
+
+ return object_property_add(obj, name, "uint8",
+ getter, setter, NULL, (void *)v);
+}
+
+ObjectProperty *
+object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
+ const uint8_t *v,
+ ObjectPropertyFlags flags)
+{
+ ObjectPropertyAccessor *getter = NULL;
+ ObjectPropertyAccessor *setter = NULL;
+
+ if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
+ getter = property_get_uint8_ptr;
+ }
+
+ if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
+ setter = property_set_uint8_ptr;
+ }
+
+ return object_class_property_add(klass, name, "uint8",
+ getter, setter, NULL, (void *)v);
+}
+
+ObjectProperty *
+object_property_add_uint16_ptr(Object *obj, const char *name,
+ const uint16_t *v,
+ ObjectPropertyFlags flags)
+{
+ ObjectPropertyAccessor *getter = NULL;
+ ObjectPropertyAccessor *setter = NULL;
+
+ if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
+ getter = property_get_uint16_ptr;
+ }
+
+ if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
+ setter = property_set_uint16_ptr;
+ }
+
+ return object_property_add(obj, name, "uint16",
+ getter, setter, NULL, (void *)v);
+}
+
+ObjectProperty *
+object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
+ const uint16_t *v,
+ ObjectPropertyFlags flags)
+{
+ ObjectPropertyAccessor *getter = NULL;
+ ObjectPropertyAccessor *setter = NULL;
+
+ if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
+ getter = property_get_uint16_ptr;
+ }
+
+ if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
+ setter = property_set_uint16_ptr;
+ }
+
+ return object_class_property_add(klass, name, "uint16",
+ getter, setter, NULL, (void *)v);
+}
+
+ObjectProperty *
+object_property_add_uint32_ptr(Object *obj, const char *name,
+ const uint32_t *v,
+ ObjectPropertyFlags flags)
+{
+ ObjectPropertyAccessor *getter = NULL;
+ ObjectPropertyAccessor *setter = NULL;
+
+ if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
+ getter = property_get_uint32_ptr;
+ }
+
+ if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
+ setter = property_set_uint32_ptr;
+ }
+
+ return object_property_add(obj, name, "uint32",
+ getter, setter, NULL, (void *)v);
+}
+
+ObjectProperty *
+object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
+ const uint32_t *v,
+ ObjectPropertyFlags flags)
+{
+ ObjectPropertyAccessor *getter = NULL;
+ ObjectPropertyAccessor *setter = NULL;
+
+ if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
+ getter = property_get_uint32_ptr;
+ }
+
+ if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
+ setter = property_set_uint32_ptr;
+ }
+
+ return object_class_property_add(klass, name, "uint32",
+ getter, setter, NULL, (void *)v);
+}
+
+ObjectProperty *
+object_property_add_uint64_ptr(Object *obj, const char *name,
+ const uint64_t *v,
+ ObjectPropertyFlags flags)
+{
+ ObjectPropertyAccessor *getter = NULL;
+ ObjectPropertyAccessor *setter = NULL;
+
+ if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
+ getter = property_get_uint64_ptr;
+ }
+
+ if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
+ setter = property_set_uint64_ptr;
+ }
+
+ return object_property_add(obj, name, "uint64",
+ getter, setter, NULL, (void *)v);
+}
+
+ObjectProperty *
+object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
+ const uint64_t *v,
+ ObjectPropertyFlags flags)
+{
+ ObjectPropertyAccessor *getter = NULL;
+ ObjectPropertyAccessor *setter = NULL;
+
+ if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
+ getter = property_get_uint64_ptr;
+ }
+
+ if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
+ setter = property_set_uint64_ptr;
+ }
+
+ return object_class_property_add(klass, name, "uint64",
+ getter, setter, NULL, (void *)v);
+}
+
+typedef struct {
+ Object *target_obj;
+ char *target_name;
+} AliasProperty;
+
+static void property_get_alias(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ AliasProperty *prop = opaque;
+ Visitor *alias_v = visitor_forward_field(v, prop->target_name, name);
+
+ object_property_get(prop->target_obj, prop->target_name, alias_v, errp);
+ visit_free(alias_v);
+}
+
+static void property_set_alias(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ AliasProperty *prop = opaque;
+ Visitor *alias_v = visitor_forward_field(v, prop->target_name, name);
+
+ object_property_set(prop->target_obj, prop->target_name, alias_v, errp);
+ visit_free(alias_v);
+}
+
+static Object *property_resolve_alias(Object *obj, void *opaque,
+ const char *part)
+{
+ AliasProperty *prop = opaque;
+
+ return object_resolve_path_component(prop->target_obj, prop->target_name);
+}
+
+static void property_release_alias(Object *obj, const char *name, void *opaque)
+{
+ AliasProperty *prop = opaque;
+
+ g_free(prop->target_name);
+ g_free(prop);
+}
+
+ObjectProperty *
+object_property_add_alias(Object *obj, const char *name,
+ Object *target_obj, const char *target_name)
+{
+ AliasProperty *prop;
+ ObjectProperty *op;
+ ObjectProperty *target_prop;
+ g_autofree char *prop_type = NULL;
+
+ target_prop = object_property_find_err(target_obj, target_name,
+ &error_abort);
+
+ if (object_property_is_child(target_prop)) {
+ prop_type = g_strdup_printf("link%s",
+ target_prop->type + strlen("child"));
+ } else {
+ prop_type = g_strdup(target_prop->type);
+ }
+
+ prop = g_malloc(sizeof(*prop));
+ prop->target_obj = target_obj;
+ prop->target_name = g_strdup(target_name);
+
+ op = object_property_add(obj, name, prop_type,
+ property_get_alias,
+ property_set_alias,
+ property_release_alias,
+ prop);
+ op->resolve = property_resolve_alias;
+ if (target_prop->defval) {
+ op->defval = qobject_ref(target_prop->defval);
+ }
+
+ object_property_set_description(obj, op->name,
+ target_prop->description);
+ return op;
+}
+
+void object_property_set_description(Object *obj, const char *name,
+ const char *description)
+{
+ ObjectProperty *op;
+
+ op = object_property_find_err(obj, name, &error_abort);
+ g_free(op->description);
+ op->description = g_strdup(description);
+}
+
+void object_class_property_set_description(ObjectClass *klass,
+ const char *name,
+ const char *description)
+{
+ ObjectProperty *op;
+
+ op = g_hash_table_lookup(klass->properties, name);
+ g_free(op->description);
+ op->description = g_strdup(description);
+}
+
+static void object_class_init(ObjectClass *klass, void *data)
+{
+ object_class_property_add_str(klass, "type", object_get_type,
+ NULL);
+}
+
+static void register_types(void)
+{
+ static TypeInfo interface_info = {
+ .name = TYPE_INTERFACE,
+ .class_size = sizeof(InterfaceClass),
+ .abstract = true,
+ };
+
+ static TypeInfo object_info = {
+ .name = TYPE_OBJECT,
+ .instance_size = sizeof(Object),
+ .class_init = object_class_init,
+ .abstract = true,
+ };
+
+ type_interface = type_register_internal(&interface_info);
+ type_register_internal(&object_info);
+}
+
+type_init(register_types)
diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c
new file mode 100644
index 000000000..3b61c195c
--- /dev/null
+++ b/qom/object_interfaces.c
@@ -0,0 +1,367 @@
+#include "qemu/osdep.h"
+
+#include "qemu/cutils.h"
+#include "qapi/error.h"
+#include "qapi/qapi-commands-qom.h"
+#include "qapi/qapi-visit-qom.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qerror.h"
+#include "qapi/qmp/qjson.h"
+#include "qapi/qobject-input-visitor.h"
+#include "qapi/qobject-output-visitor.h"
+#include "qom/object_interfaces.h"
+#include "qemu/help_option.h"
+#include "qemu/id.h"
+#include "qemu/module.h"
+#include "qemu/option.h"
+#include "qemu/qemu-print.h"
+#include "qapi/opts-visitor.h"
+#include "qemu/config-file.h"
+
+bool user_creatable_complete(UserCreatable *uc, Error **errp)
+{
+ UserCreatableClass *ucc = USER_CREATABLE_GET_CLASS(uc);
+ Error *err = NULL;
+
+ if (ucc->complete) {
+ ucc->complete(uc, &err);
+ error_propagate(errp, err);
+ }
+ return !err;
+}
+
+bool user_creatable_can_be_deleted(UserCreatable *uc)
+{
+
+ UserCreatableClass *ucc = USER_CREATABLE_GET_CLASS(uc);
+
+ if (ucc->can_be_deleted) {
+ return ucc->can_be_deleted(uc);
+ } else {
+ return true;
+ }
+}
+
+static void object_set_properties_from_qdict(Object *obj, const QDict *qdict,
+ Visitor *v, Error **errp)
+{
+ const QDictEntry *e;
+
+ if (!visit_start_struct(v, NULL, NULL, 0, errp)) {
+ return;
+ }
+ for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) {
+ if (!object_property_set(obj, e->key, v, errp)) {
+ goto out;
+ }
+ }
+ visit_check_struct(v, errp);
+out:
+ visit_end_struct(v, NULL);
+}
+
+void object_set_properties_from_keyval(Object *obj, const QDict *qdict,
+ bool from_json, Error **errp)
+{
+ Visitor *v;
+ if (from_json) {
+ v = qobject_input_visitor_new(QOBJECT(qdict));
+ } else {
+ v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
+ }
+ object_set_properties_from_qdict(obj, qdict, v, errp);
+ visit_free(v);
+}
+
+Object *user_creatable_add_type(const char *type, const char *id,
+ const QDict *qdict,
+ Visitor *v, Error **errp)
+{
+ ERRP_GUARD();
+ Object *obj;
+ ObjectClass *klass;
+ Error *local_err = NULL;
+
+ if (id != NULL && !id_wellformed(id)) {
+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "id", "an identifier");
+ error_append_hint(errp, "Identifiers consist of letters, digits, "
+ "'-', '.', '_', starting with a letter.\n");
+ return NULL;
+ }
+
+ klass = object_class_by_name(type);
+ if (!klass) {
+ error_setg(errp, "invalid object type: %s", type);
+ return NULL;
+ }
+
+ if (!object_class_dynamic_cast(klass, TYPE_USER_CREATABLE)) {
+ error_setg(errp, "object type '%s' isn't supported by object-add",
+ type);
+ return NULL;
+ }
+
+ if (object_class_is_abstract(klass)) {
+ error_setg(errp, "object type '%s' is abstract", type);
+ return NULL;
+ }
+
+ assert(qdict);
+ obj = object_new(type);
+ object_set_properties_from_qdict(obj, qdict, v, &local_err);
+ if (local_err) {
+ goto out;
+ }
+
+ if (id != NULL) {
+ object_property_try_add_child(object_get_objects_root(),
+ id, obj, &local_err);
+ if (local_err) {
+ goto out;
+ }
+ }
+
+ if (!user_creatable_complete(USER_CREATABLE(obj), &local_err)) {
+ if (id != NULL) {
+ object_property_del(object_get_objects_root(), id);
+ }
+ goto out;
+ }
+out:
+ if (local_err) {
+ error_propagate(errp, local_err);
+ object_unref(obj);
+ return NULL;
+ }
+ return obj;
+}
+
+void user_creatable_add_qapi(ObjectOptions *options, Error **errp)
+{
+ Visitor *v;
+ QObject *qobj;
+ QDict *props;
+ Object *obj;
+
+ v = qobject_output_visitor_new(&qobj);
+ visit_type_ObjectOptions(v, NULL, &options, &error_abort);
+ visit_complete(v, &qobj);
+ visit_free(v);
+
+ props = qobject_to(QDict, qobj);
+ qdict_del(props, "qom-type");
+ qdict_del(props, "id");
+
+ v = qobject_input_visitor_new(QOBJECT(props));
+ obj = user_creatable_add_type(ObjectType_str(options->qom_type),
+ options->id, props, v, errp);
+ object_unref(obj);
+ qobject_unref(qobj);
+ visit_free(v);
+}
+
+char *object_property_help(const char *name, const char *type,
+ QObject *defval, const char *description)
+{
+ GString *str = g_string_new(NULL);
+
+ g_string_append_printf(str, " %s=<%s>", name, type);
+ if (description || defval) {
+ if (str->len < 24) {
+ g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
+ }
+ g_string_append(str, " - ");
+ }
+ if (description) {
+ g_string_append(str, description);
+ }
+ if (defval) {
+ g_autofree char *def_json = g_string_free(qobject_to_json(defval),
+ false);
+ g_string_append_printf(str, " (default: %s)", def_json);
+ }
+
+ return g_string_free(str, false);
+}
+
+static void user_creatable_print_types(void)
+{
+ GSList *l, *list;
+
+ qemu_printf("List of user creatable objects:\n");
+ list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
+ for (l = list; l != NULL; l = l->next) {
+ ObjectClass *oc = OBJECT_CLASS(l->data);
+ qemu_printf(" %s\n", object_class_get_name(oc));
+ }
+ g_slist_free(list);
+}
+
+bool type_print_class_properties(const char *type)
+{
+ ObjectClass *klass;
+ ObjectPropertyIterator iter;
+ ObjectProperty *prop;
+ GPtrArray *array;
+ int i;
+
+ klass = object_class_by_name(type);
+ if (!klass) {
+ return false;
+ }
+
+ array = g_ptr_array_new();
+ object_class_property_iter_init(&iter, klass);
+ while ((prop = object_property_iter_next(&iter))) {
+ if (!prop->set) {
+ continue;
+ }
+
+ g_ptr_array_add(array,
+ object_property_help(prop->name, prop->type,
+ prop->defval, prop->description));
+ }
+ g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
+ if (array->len > 0) {
+ qemu_printf("%s options:\n", type);
+ } else {
+ qemu_printf("There are no options for %s.\n", type);
+ }
+ for (i = 0; i < array->len; i++) {
+ qemu_printf("%s\n", (char *)array->pdata[i]);
+ }
+ g_ptr_array_set_free_func(array, g_free);
+ g_ptr_array_free(array, true);
+ return true;
+}
+
+bool user_creatable_print_help(const char *type, QemuOpts *opts)
+{
+ if (is_help_option(type)) {
+ user_creatable_print_types();
+ return true;
+ }
+
+ if (qemu_opt_has_help_opt(opts)) {
+ return type_print_class_properties(type);
+ }
+
+ return false;
+}
+
+static void user_creatable_print_help_from_qdict(QDict *args)
+{
+ const char *type = qdict_get_try_str(args, "qom-type");
+
+ if (!type || !type_print_class_properties(type)) {
+ user_creatable_print_types();
+ }
+}
+
+ObjectOptions *user_creatable_parse_str(const char *optarg, Error **errp)
+{
+ ERRP_GUARD();
+ QObject *obj;
+ bool help;
+ Visitor *v;
+ ObjectOptions *options;
+
+ if (optarg[0] == '{') {
+ obj = qobject_from_json(optarg, errp);
+ if (!obj) {
+ return NULL;
+ }
+ v = qobject_input_visitor_new(obj);
+ } else {
+ QDict *args = keyval_parse(optarg, "qom-type", &help, errp);
+ if (*errp) {
+ return NULL;
+ }
+ if (help) {
+ user_creatable_print_help_from_qdict(args);
+ qobject_unref(args);
+ return NULL;
+ }
+
+ obj = QOBJECT(args);
+ v = qobject_input_visitor_new_keyval(obj);
+ }
+
+ visit_type_ObjectOptions(v, NULL, &options, errp);
+ visit_free(v);
+ qobject_unref(obj);
+
+ return options;
+}
+
+bool user_creatable_add_from_str(const char *optarg, Error **errp)
+{
+ ERRP_GUARD();
+ ObjectOptions *options;
+
+ options = user_creatable_parse_str(optarg, errp);
+ if (!options) {
+ return false;
+ }
+
+ user_creatable_add_qapi(options, errp);
+ qapi_free_ObjectOptions(options);
+ return !*errp;
+}
+
+void user_creatable_process_cmdline(const char *optarg)
+{
+ if (!user_creatable_add_from_str(optarg, &error_fatal)) {
+ /* Help was printed */
+ exit(EXIT_SUCCESS);
+ }
+}
+
+bool user_creatable_del(const char *id, Error **errp)
+{
+ QemuOptsList *opts_list;
+ Object *container;
+ Object *obj;
+
+ container = object_get_objects_root();
+ obj = object_resolve_path_component(container, id);
+ if (!obj) {
+ error_setg(errp, "object '%s' not found", id);
+ return false;
+ }
+
+ if (!user_creatable_can_be_deleted(USER_CREATABLE(obj))) {
+ error_setg(errp, "object '%s' is in use, can not be deleted", id);
+ return false;
+ }
+
+ /*
+ * if object was defined on the command-line, remove its corresponding
+ * option group entry
+ */
+ opts_list = qemu_find_opts_err("object", NULL);
+ if (opts_list) {
+ qemu_opts_del(qemu_opts_find(opts_list, id));
+ }
+
+ object_unparent(obj);
+ return true;
+}
+
+void user_creatable_cleanup(void)
+{
+ object_unparent(object_get_objects_root());
+}
+
+static void register_types(void)
+{
+ static const TypeInfo uc_interface_info = {
+ .name = TYPE_USER_CREATABLE,
+ .parent = TYPE_INTERFACE,
+ .class_size = sizeof(UserCreatableClass),
+ };
+
+ type_register_static(&uc_interface_info);
+}
+
+type_init(register_types)
diff --git a/qom/qom-hmp-cmds.c b/qom/qom-hmp-cmds.c
new file mode 100644
index 000000000..453fbfeab
--- /dev/null
+++ b/qom/qom-hmp-cmds.c
@@ -0,0 +1,152 @@
+/*
+ * HMP commands related to QOM
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * later. See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/qdev-core.h"
+#include "monitor/hmp.h"
+#include "monitor/monitor.h"
+#include "qapi/error.h"
+#include "qapi/qapi-commands-qom.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qjson.h"
+#include "qom/object.h"
+
+void hmp_qom_list(Monitor *mon, const QDict *qdict)
+{
+ const char *path = qdict_get_try_str(qdict, "path");
+ ObjectPropertyInfoList *list;
+ Error *err = NULL;
+
+ if (path == NULL) {
+ monitor_printf(mon, "/\n");
+ return;
+ }
+
+ list = qmp_qom_list(path, &err);
+ if (err == NULL) {
+ ObjectPropertyInfoList *start = list;
+ while (list != NULL) {
+ ObjectPropertyInfo *value = list->value;
+
+ monitor_printf(mon, "%s (%s)\n",
+ value->name, value->type);
+ list = list->next;
+ }
+ qapi_free_ObjectPropertyInfoList(start);
+ }
+ hmp_handle_error(mon, err);
+}
+
+void hmp_qom_set(Monitor *mon, const QDict *qdict)
+{
+ const bool json = qdict_get_try_bool(qdict, "json", false);
+ const char *path = qdict_get_str(qdict, "path");
+ const char *property = qdict_get_str(qdict, "property");
+ const char *value = qdict_get_str(qdict, "value");
+ Error *err = NULL;
+
+ if (!json) {
+ Object *obj = object_resolve_path(path, NULL);
+
+ if (!obj) {
+ error_set(&err, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", path);
+ } else {
+ object_property_parse(obj, property, value, &err);
+ }
+ } else {
+ QObject *obj = qobject_from_json(value, &err);
+
+ if (!err) {
+ qmp_qom_set(path, property, obj, &err);
+ }
+ }
+
+ hmp_handle_error(mon, err);
+}
+
+void hmp_qom_get(Monitor *mon, const QDict *qdict)
+{
+ const char *path = qdict_get_str(qdict, "path");
+ const char *property = qdict_get_str(qdict, "property");
+ Error *err = NULL;
+ QObject *obj = qmp_qom_get(path, property, &err);
+
+ if (err == NULL) {
+ GString *str = qobject_to_json_pretty(obj, true);
+ monitor_printf(mon, "%s\n", str->str);
+ g_string_free(str, true);
+ }
+
+ qobject_unref(obj);
+ hmp_handle_error(mon, err);
+}
+
+typedef struct QOMCompositionState {
+ Monitor *mon;
+ int indent;
+} QOMCompositionState;
+
+static void print_qom_composition(Monitor *mon, Object *obj, int indent);
+
+static int qom_composition_compare(const void *a, const void *b)
+{
+ return g_strcmp0(object_get_canonical_path_component(*(Object **)a),
+ object_get_canonical_path_component(*(Object **)b));
+}
+
+static int insert_qom_composition_child(Object *obj, void *opaque)
+{
+ g_array_append_val(opaque, obj);
+ return 0;
+}
+
+static void print_qom_composition(Monitor *mon, Object *obj, int indent)
+{
+ GArray *children = g_array_new(false, false, sizeof(Object *));
+ const char *name;
+ int i;
+
+ if (obj == object_get_root()) {
+ name = "";
+ } else {
+ name = object_get_canonical_path_component(obj);
+ }
+ monitor_printf(mon, "%*s/%s (%s)\n", indent, "", name,
+ object_get_typename(obj));
+
+ object_child_foreach(obj, insert_qom_composition_child, children);
+ g_array_sort(children, qom_composition_compare);
+
+ for (i = 0; i < children->len; i++) {
+ print_qom_composition(mon, g_array_index(children, Object *, i),
+ indent + 2);
+ }
+ g_array_free(children, TRUE);
+}
+
+void hmp_info_qom_tree(Monitor *mon, const QDict *dict)
+{
+ const char *path = qdict_get_try_str(dict, "path");
+ Object *obj;
+ bool ambiguous = false;
+
+ if (path) {
+ obj = object_resolve_path(path, &ambiguous);
+ if (!obj) {
+ monitor_printf(mon, "Path '%s' could not be resolved.\n", path);
+ return;
+ }
+ if (ambiguous) {
+ monitor_printf(mon, "Warning: Path '%s' is ambiguous.\n", path);
+ return;
+ }
+ } else {
+ obj = qdev_get_machine();
+ }
+ print_qom_composition(mon, obj, 0);
+}
diff --git a/qom/qom-qmp-cmds.c b/qom/qom-qmp-cmds.c
new file mode 100644
index 000000000..2d6f41ecc
--- /dev/null
+++ b/qom/qom-qmp-cmds.c
@@ -0,0 +1,237 @@
+/*
+ * QMP commands related to QOM
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+
+#include "qemu/osdep.h"
+#include "block/qdict.h"
+#include "hw/qdev-core.h"
+#include "qapi/error.h"
+#include "qapi/qapi-commands-qdev.h"
+#include "qapi/qapi-commands-qom.h"
+#include "qapi/qapi-visit-qom.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qerror.h"
+#include "qapi/qobject-input-visitor.h"
+#include "qapi/qobject-output-visitor.h"
+#include "qemu/cutils.h"
+#include "qom/object_interfaces.h"
+#include "qom/qom-qobject.h"
+
+ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
+{
+ Object *obj;
+ bool ambiguous = false;
+ ObjectPropertyInfoList *props = NULL;
+ ObjectProperty *prop;
+ ObjectPropertyIterator iter;
+
+ obj = object_resolve_path(path, &ambiguous);
+ if (obj == NULL) {
+ if (ambiguous) {
+ error_setg(errp, "Path '%s' is ambiguous", path);
+ } else {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", path);
+ }
+ return NULL;
+ }
+
+ object_property_iter_init(&iter, obj);
+ while ((prop = object_property_iter_next(&iter))) {
+ ObjectPropertyInfo *value = g_malloc0(sizeof(ObjectPropertyInfo));
+
+ QAPI_LIST_PREPEND(props, value);
+
+ value->name = g_strdup(prop->name);
+ value->type = g_strdup(prop->type);
+ }
+
+ return props;
+}
+
+void qmp_qom_set(const char *path, const char *property, QObject *value,
+ Error **errp)
+{
+ Object *obj;
+
+ obj = object_resolve_path(path, NULL);
+ if (!obj) {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", path);
+ return;
+ }
+
+ object_property_set_qobject(obj, property, value, errp);
+}
+
+QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
+{
+ Object *obj;
+
+ obj = object_resolve_path(path, NULL);
+ if (!obj) {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", path);
+ return NULL;
+ }
+
+ return object_property_get_qobject(obj, property, errp);
+}
+
+static void qom_list_types_tramp(ObjectClass *klass, void *data)
+{
+ ObjectTypeInfoList **pret = data;
+ ObjectTypeInfo *info;
+ ObjectClass *parent = object_class_get_parent(klass);
+
+ info = g_malloc0(sizeof(*info));
+ info->name = g_strdup(object_class_get_name(klass));
+ info->has_abstract = info->abstract = object_class_is_abstract(klass);
+ if (parent) {
+ info->has_parent = true;
+ info->parent = g_strdup(object_class_get_name(parent));
+ }
+
+ QAPI_LIST_PREPEND(*pret, info);
+}
+
+ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
+ const char *implements,
+ bool has_abstract,
+ bool abstract,
+ Error **errp)
+{
+ ObjectTypeInfoList *ret = NULL;
+
+ module_load_qom_all();
+ object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
+
+ return ret;
+}
+
+ObjectPropertyInfoList *qmp_device_list_properties(const char *typename,
+ Error **errp)
+{
+ ObjectClass *klass;
+ Object *obj;
+ ObjectProperty *prop;
+ ObjectPropertyIterator iter;
+ ObjectPropertyInfoList *prop_list = NULL;
+
+ klass = module_object_class_by_name(typename);
+ if (klass == NULL) {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", typename);
+ return NULL;
+ }
+
+ if (!object_class_dynamic_cast(klass, TYPE_DEVICE)
+ || object_class_is_abstract(klass)) {
+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
+ "a non-abstract device type");
+ return NULL;
+ }
+
+ obj = object_new(typename);
+
+ object_property_iter_init(&iter, obj);
+ while ((prop = object_property_iter_next(&iter))) {
+ ObjectPropertyInfo *info;
+
+ /* Skip Object and DeviceState properties */
+ if (strcmp(prop->name, "type") == 0 ||
+ strcmp(prop->name, "realized") == 0 ||
+ strcmp(prop->name, "hotpluggable") == 0 ||
+ strcmp(prop->name, "hotplugged") == 0 ||
+ strcmp(prop->name, "parent_bus") == 0) {
+ continue;
+ }
+
+ /* Skip legacy properties since they are just string versions of
+ * properties that we already list.
+ */
+ if (strstart(prop->name, "legacy-", NULL)) {
+ continue;
+ }
+
+ info = g_new0(ObjectPropertyInfo, 1);
+ info->name = g_strdup(prop->name);
+ info->type = g_strdup(prop->type);
+ info->has_description = !!prop->description;
+ info->description = g_strdup(prop->description);
+ info->default_value = qobject_ref(prop->defval);
+ info->has_default_value = !!info->default_value;
+
+ QAPI_LIST_PREPEND(prop_list, info);
+ }
+
+ object_unref(obj);
+
+ return prop_list;
+}
+
+ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename,
+ Error **errp)
+{
+ ObjectClass *klass;
+ Object *obj = NULL;
+ ObjectProperty *prop;
+ ObjectPropertyIterator iter;
+ ObjectPropertyInfoList *prop_list = NULL;
+
+ klass = object_class_by_name(typename);
+ if (klass == NULL) {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Class '%s' not found", typename);
+ return NULL;
+ }
+
+ if (!object_class_dynamic_cast(klass, TYPE_OBJECT)) {
+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
+ "a QOM type");
+ return NULL;
+ }
+
+ if (object_class_is_abstract(klass)) {
+ object_class_property_iter_init(&iter, klass);
+ } else {
+ obj = object_new(typename);
+ object_property_iter_init(&iter, obj);
+ }
+ while ((prop = object_property_iter_next(&iter))) {
+ ObjectPropertyInfo *info;
+
+ info = g_malloc0(sizeof(*info));
+ info->name = g_strdup(prop->name);
+ info->type = g_strdup(prop->type);
+ info->has_description = !!prop->description;
+ info->description = g_strdup(prop->description);
+
+ QAPI_LIST_PREPEND(prop_list, info);
+ }
+
+ object_unref(obj);
+
+ return prop_list;
+}
+
+void qmp_object_add(ObjectOptions *options, Error **errp)
+{
+ user_creatable_add_qapi(options, errp);
+}
+
+void qmp_object_del(const char *id, Error **errp)
+{
+ user_creatable_del(id, errp);
+}
diff --git a/qom/qom-qobject.c b/qom/qom-qobject.c
new file mode 100644
index 000000000..21ce22de9
--- /dev/null
+++ b/qom/qom-qobject.c
@@ -0,0 +1,45 @@
+/*
+ * QEMU Object Model - QObject wrappers
+ *
+ * Copyright (C) 2012 Red Hat, Inc.
+ *
+ * Author: Paolo Bonzini <pbonzini@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qom/object.h"
+#include "qom/qom-qobject.h"
+#include "qapi/visitor.h"
+#include "qapi/qobject-input-visitor.h"
+#include "qapi/qobject-output-visitor.h"
+
+bool object_property_set_qobject(Object *obj,
+ const char *name, QObject *value,
+ Error **errp)
+{
+ Visitor *v;
+ bool ok;
+
+ v = qobject_input_visitor_new(value);
+ ok = object_property_set(obj, name, v, errp);
+ visit_free(v);
+ return ok;
+}
+
+QObject *object_property_get_qobject(Object *obj, const char *name,
+ Error **errp)
+{
+ QObject *ret = NULL;
+ Visitor *v;
+
+ v = qobject_output_visitor_new(&ret);
+ if (object_property_get(obj, name, v, errp)) {
+ visit_complete(v, &ret);
+ }
+ visit_free(v);
+ return ret;
+}
diff --git a/qom/trace-events b/qom/trace-events
new file mode 100644
index 000000000..b2e9f4a71
--- /dev/null
+++ b/qom/trace-events
@@ -0,0 +1,5 @@
+# See docs/devel/tracing.rst for syntax documentation.
+
+# object.c
+object_dynamic_cast_assert(const char *type, const char *target, const char *file, int line, const char *func) "%s->%s (%s:%d:%s)"
+object_class_dynamic_cast_assert(const char *type, const char *target, const char *file, int line, const char *func) "%s->%s (%s:%d:%s)"
diff --git a/qom/trace.h b/qom/trace.h
new file mode 100644
index 000000000..f2895e699
--- /dev/null
+++ b/qom/trace.h
@@ -0,0 +1 @@
+#include "trace/trace-qom.h"