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-rw-r--r--hw/core/qdev-properties.c955
1 files changed, 955 insertions, 0 deletions
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
new file mode 100644
index 000000000..c34aac6eb
--- /dev/null
+++ b/hw/core/qdev-properties.c
@@ -0,0 +1,955 @@
+#include "qemu/osdep.h"
+#include "hw/qdev-properties.h"
+#include "qapi/error.h"
+#include "qapi/qapi-types-misc.h"
+#include "qapi/qmp/qerror.h"
+#include "qemu/ctype.h"
+#include "qemu/error-report.h"
+#include "qapi/visitor.h"
+#include "qemu/units.h"
+#include "qemu/cutils.h"
+#include "qdev-prop-internal.h"
+
+void qdev_prop_set_after_realize(DeviceState *dev, const char *name,
+ Error **errp)
+{
+ if (dev->id) {
+ error_setg(errp, "Attempt to set property '%s' on device '%s' "
+ "(type '%s') after it was realized", name, dev->id,
+ object_get_typename(OBJECT(dev)));
+ } else {
+ error_setg(errp, "Attempt to set property '%s' on anonymous device "
+ "(type '%s') after it was realized", name,
+ object_get_typename(OBJECT(dev)));
+ }
+}
+
+/* returns: true if property is allowed to be set, false otherwise */
+static bool qdev_prop_allow_set(Object *obj, const char *name,
+ const PropertyInfo *info, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+
+ if (dev->realized && !info->realized_set_allowed) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return false;
+ }
+ return true;
+}
+
+void qdev_prop_allow_set_link_before_realize(const Object *obj,
+ const char *name,
+ Object *val, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+
+ if (dev->realized) {
+ error_setg(errp, "Attempt to set link property '%s' on device '%s' "
+ "(type '%s') after it was realized",
+ name, dev->id, object_get_typename(obj));
+ }
+}
+
+void *object_field_prop_ptr(Object *obj, Property *prop)
+{
+ void *ptr = obj;
+ ptr += prop->offset;
+ return ptr;
+}
+
+static void field_prop_get(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ return prop->info->get(obj, v, name, opaque, errp);
+}
+
+/**
+ * field_prop_getter: Return getter function to be used for property
+ *
+ * Return value can be NULL if @info has no getter function.
+ */
+static ObjectPropertyAccessor *field_prop_getter(const PropertyInfo *info)
+{
+ return info->get ? field_prop_get : NULL;
+}
+
+static void field_prop_set(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+
+ if (!qdev_prop_allow_set(obj, name, prop->info, errp)) {
+ return;
+ }
+
+ return prop->info->set(obj, v, name, opaque, errp);
+}
+
+/**
+ * field_prop_setter: Return setter function to be used for property
+ *
+ * Return value can be NULL if @info has not setter function.
+ */
+static ObjectPropertyAccessor *field_prop_setter(const PropertyInfo *info)
+{
+ return info->set ? field_prop_set : NULL;
+}
+
+void qdev_propinfo_get_enum(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ int *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_enum(v, name, ptr, prop->info->enum_table, errp);
+}
+
+void qdev_propinfo_set_enum(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ int *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_enum(v, name, ptr, prop->info->enum_table, errp);
+}
+
+void qdev_propinfo_set_default_value_enum(ObjectProperty *op,
+ const Property *prop)
+{
+ object_property_set_default_str(op,
+ qapi_enum_lookup(prop->info->enum_table, prop->defval.i));
+}
+
+const PropertyInfo qdev_prop_enum = {
+ .name = "enum",
+ .get = qdev_propinfo_get_enum,
+ .set = qdev_propinfo_set_enum,
+ .set_default_value = qdev_propinfo_set_default_value_enum,
+};
+
+/* Bit */
+
+static uint32_t qdev_get_prop_mask(Property *prop)
+{
+ assert(prop->info == &qdev_prop_bit);
+ return 0x1 << prop->bitnr;
+}
+
+static void bit_prop_set(Object *obj, Property *props, bool val)
+{
+ uint32_t *p = object_field_prop_ptr(obj, props);
+ uint32_t mask = qdev_get_prop_mask(props);
+ if (val) {
+ *p |= mask;
+ } else {
+ *p &= ~mask;
+ }
+}
+
+static void prop_get_bit(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ uint32_t *p = object_field_prop_ptr(obj, prop);
+ bool value = (*p & qdev_get_prop_mask(prop)) != 0;
+
+ visit_type_bool(v, name, &value, errp);
+}
+
+static void prop_set_bit(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ bool value;
+
+ if (!visit_type_bool(v, name, &value, errp)) {
+ return;
+ }
+ bit_prop_set(obj, prop, value);
+}
+
+static void set_default_value_bool(ObjectProperty *op, const Property *prop)
+{
+ object_property_set_default_bool(op, prop->defval.u);
+}
+
+const PropertyInfo qdev_prop_bit = {
+ .name = "bool",
+ .description = "on/off",
+ .get = prop_get_bit,
+ .set = prop_set_bit,
+ .set_default_value = set_default_value_bool,
+};
+
+/* Bit64 */
+
+static uint64_t qdev_get_prop_mask64(Property *prop)
+{
+ assert(prop->info == &qdev_prop_bit64);
+ return 0x1ull << prop->bitnr;
+}
+
+static void bit64_prop_set(Object *obj, Property *props, bool val)
+{
+ uint64_t *p = object_field_prop_ptr(obj, props);
+ uint64_t mask = qdev_get_prop_mask64(props);
+ if (val) {
+ *p |= mask;
+ } else {
+ *p &= ~mask;
+ }
+}
+
+static void prop_get_bit64(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ uint64_t *p = object_field_prop_ptr(obj, prop);
+ bool value = (*p & qdev_get_prop_mask64(prop)) != 0;
+
+ visit_type_bool(v, name, &value, errp);
+}
+
+static void prop_set_bit64(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ bool value;
+
+ if (!visit_type_bool(v, name, &value, errp)) {
+ return;
+ }
+ bit64_prop_set(obj, prop, value);
+}
+
+const PropertyInfo qdev_prop_bit64 = {
+ .name = "bool",
+ .description = "on/off",
+ .get = prop_get_bit64,
+ .set = prop_set_bit64,
+ .set_default_value = set_default_value_bool,
+};
+
+/* --- bool --- */
+
+static void get_bool(Object *obj, Visitor *v, const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ bool *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_bool(v, name, ptr, errp);
+}
+
+static void set_bool(Object *obj, Visitor *v, const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ bool *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_bool(v, name, ptr, errp);
+}
+
+const PropertyInfo qdev_prop_bool = {
+ .name = "bool",
+ .get = get_bool,
+ .set = set_bool,
+ .set_default_value = set_default_value_bool,
+};
+
+/* --- 8bit integer --- */
+
+static void get_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ uint8_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_uint8(v, name, ptr, errp);
+}
+
+static void set_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ uint8_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_uint8(v, name, ptr, errp);
+}
+
+void qdev_propinfo_set_default_value_int(ObjectProperty *op,
+ const Property *prop)
+{
+ object_property_set_default_int(op, prop->defval.i);
+}
+
+void qdev_propinfo_set_default_value_uint(ObjectProperty *op,
+ const Property *prop)
+{
+ object_property_set_default_uint(op, prop->defval.u);
+}
+
+const PropertyInfo qdev_prop_uint8 = {
+ .name = "uint8",
+ .get = get_uint8,
+ .set = set_uint8,
+ .set_default_value = qdev_propinfo_set_default_value_uint,
+};
+
+/* --- 16bit integer --- */
+
+static void get_uint16(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ uint16_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_uint16(v, name, ptr, errp);
+}
+
+static void set_uint16(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ uint16_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_uint16(v, name, ptr, errp);
+}
+
+const PropertyInfo qdev_prop_uint16 = {
+ .name = "uint16",
+ .get = get_uint16,
+ .set = set_uint16,
+ .set_default_value = qdev_propinfo_set_default_value_uint,
+};
+
+/* --- 32bit integer --- */
+
+static void get_uint32(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ uint32_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_uint32(v, name, ptr, errp);
+}
+
+static void set_uint32(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ uint32_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_uint32(v, name, ptr, errp);
+}
+
+void qdev_propinfo_get_int32(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ int32_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_int32(v, name, ptr, errp);
+}
+
+static void set_int32(Object *obj, Visitor *v, const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ int32_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_int32(v, name, ptr, errp);
+}
+
+const PropertyInfo qdev_prop_uint32 = {
+ .name = "uint32",
+ .get = get_uint32,
+ .set = set_uint32,
+ .set_default_value = qdev_propinfo_set_default_value_uint,
+};
+
+const PropertyInfo qdev_prop_int32 = {
+ .name = "int32",
+ .get = qdev_propinfo_get_int32,
+ .set = set_int32,
+ .set_default_value = qdev_propinfo_set_default_value_int,
+};
+
+/* --- 64bit integer --- */
+
+static void get_uint64(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ uint64_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_uint64(v, name, ptr, errp);
+}
+
+static void set_uint64(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ uint64_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_uint64(v, name, ptr, errp);
+}
+
+static void get_int64(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ int64_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_int64(v, name, ptr, errp);
+}
+
+static void set_int64(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ int64_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_int64(v, name, ptr, errp);
+}
+
+const PropertyInfo qdev_prop_uint64 = {
+ .name = "uint64",
+ .get = get_uint64,
+ .set = set_uint64,
+ .set_default_value = qdev_propinfo_set_default_value_uint,
+};
+
+const PropertyInfo qdev_prop_int64 = {
+ .name = "int64",
+ .get = get_int64,
+ .set = set_int64,
+ .set_default_value = qdev_propinfo_set_default_value_int,
+};
+
+/* --- string --- */
+
+static void release_string(Object *obj, const char *name, void *opaque)
+{
+ Property *prop = opaque;
+ g_free(*(char **)object_field_prop_ptr(obj, prop));
+}
+
+static void get_string(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ char **ptr = object_field_prop_ptr(obj, prop);
+
+ if (!*ptr) {
+ char *str = (char *)"";
+ visit_type_str(v, name, &str, errp);
+ } else {
+ visit_type_str(v, name, ptr, errp);
+ }
+}
+
+static void set_string(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ char **ptr = object_field_prop_ptr(obj, prop);
+ char *str;
+
+ if (!visit_type_str(v, name, &str, errp)) {
+ return;
+ }
+ g_free(*ptr);
+ *ptr = str;
+}
+
+const PropertyInfo qdev_prop_string = {
+ .name = "str",
+ .release = release_string,
+ .get = get_string,
+ .set = set_string,
+};
+
+/* --- on/off/auto --- */
+
+const PropertyInfo qdev_prop_on_off_auto = {
+ .name = "OnOffAuto",
+ .description = "on/off/auto",
+ .enum_table = &OnOffAuto_lookup,
+ .get = qdev_propinfo_get_enum,
+ .set = qdev_propinfo_set_enum,
+ .set_default_value = qdev_propinfo_set_default_value_enum,
+};
+
+/* --- 32bit unsigned int 'size' type --- */
+
+void qdev_propinfo_get_size32(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ Property *prop = opaque;
+ uint32_t *ptr = object_field_prop_ptr(obj, prop);
+ uint64_t value = *ptr;
+
+ visit_type_size(v, name, &value, errp);
+}
+
+static void set_size32(Object *obj, Visitor *v, const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ uint32_t *ptr = object_field_prop_ptr(obj, prop);
+ uint64_t value;
+
+ if (!visit_type_size(v, name, &value, errp)) {
+ return;
+ }
+
+ if (value > UINT32_MAX) {
+ error_setg(errp,
+ "Property %s.%s doesn't take value %" PRIu64
+ " (maximum: %u)",
+ object_get_typename(obj), name, value, UINT32_MAX);
+ return;
+ }
+
+ *ptr = value;
+}
+
+const PropertyInfo qdev_prop_size32 = {
+ .name = "size",
+ .get = qdev_propinfo_get_size32,
+ .set = set_size32,
+ .set_default_value = qdev_propinfo_set_default_value_uint,
+};
+
+/* --- support for array properties --- */
+
+/* Used as an opaque for the object properties we add for each
+ * array element. Note that the struct Property must be first
+ * in the struct so that a pointer to this works as the opaque
+ * for the underlying element's property hooks as well as for
+ * our own release callback.
+ */
+typedef struct {
+ struct Property prop;
+ char *propname;
+ ObjectPropertyRelease *release;
+} ArrayElementProperty;
+
+/* object property release callback for array element properties:
+ * we call the underlying element's property release hook, and
+ * then free the memory we allocated when we added the property.
+ */
+static void array_element_release(Object *obj, const char *name, void *opaque)
+{
+ ArrayElementProperty *p = opaque;
+ if (p->release) {
+ p->release(obj, name, opaque);
+ }
+ g_free(p->propname);
+ g_free(p);
+}
+
+static void set_prop_arraylen(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ /* Setter for the property which defines the length of a
+ * variable-sized property array. As well as actually setting the
+ * array-length field in the device struct, we have to create the
+ * array itself and dynamically add the corresponding properties.
+ */
+ Property *prop = opaque;
+ uint32_t *alenptr = object_field_prop_ptr(obj, prop);
+ void **arrayptr = (void *)obj + prop->arrayoffset;
+ void *eltptr;
+ const char *arrayname;
+ int i;
+
+ if (*alenptr) {
+ error_setg(errp, "array size property %s may not be set more than once",
+ name);
+ return;
+ }
+ if (!visit_type_uint32(v, name, alenptr, errp)) {
+ return;
+ }
+ if (!*alenptr) {
+ return;
+ }
+
+ /* DEFINE_PROP_ARRAY guarantees that name should start with this prefix;
+ * strip it off so we can get the name of the array itself.
+ */
+ assert(strncmp(name, PROP_ARRAY_LEN_PREFIX,
+ strlen(PROP_ARRAY_LEN_PREFIX)) == 0);
+ arrayname = name + strlen(PROP_ARRAY_LEN_PREFIX);
+
+ /* Note that it is the responsibility of the individual device's deinit
+ * to free the array proper.
+ */
+ *arrayptr = eltptr = g_malloc0(*alenptr * prop->arrayfieldsize);
+ for (i = 0; i < *alenptr; i++, eltptr += prop->arrayfieldsize) {
+ char *propname = g_strdup_printf("%s[%d]", arrayname, i);
+ ArrayElementProperty *arrayprop = g_new0(ArrayElementProperty, 1);
+ arrayprop->release = prop->arrayinfo->release;
+ arrayprop->propname = propname;
+ arrayprop->prop.info = prop->arrayinfo;
+ arrayprop->prop.name = propname;
+ /* This ugly piece of pointer arithmetic sets up the offset so
+ * that when the underlying get/set hooks call qdev_get_prop_ptr
+ * they get the right answer despite the array element not actually
+ * being inside the device struct.
+ */
+ arrayprop->prop.offset = eltptr - (void *)obj;
+ assert(object_field_prop_ptr(obj, &arrayprop->prop) == eltptr);
+ object_property_add(obj, propname,
+ arrayprop->prop.info->name,
+ field_prop_getter(arrayprop->prop.info),
+ field_prop_setter(arrayprop->prop.info),
+ array_element_release,
+ arrayprop);
+ }
+}
+
+const PropertyInfo qdev_prop_arraylen = {
+ .name = "uint32",
+ .get = get_uint32,
+ .set = set_prop_arraylen,
+ .set_default_value = qdev_propinfo_set_default_value_uint,
+};
+
+/* --- public helpers --- */
+
+static Property *qdev_prop_walk(Property *props, const char *name)
+{
+ if (!props) {
+ return NULL;
+ }
+ while (props->name) {
+ if (strcmp(props->name, name) == 0) {
+ return props;
+ }
+ props++;
+ }
+ return NULL;
+}
+
+static Property *qdev_prop_find(DeviceState *dev, const char *name)
+{
+ ObjectClass *class;
+ Property *prop;
+
+ /* device properties */
+ class = object_get_class(OBJECT(dev));
+ do {
+ prop = qdev_prop_walk(DEVICE_CLASS(class)->props_, name);
+ if (prop) {
+ return prop;
+ }
+ class = object_class_get_parent(class);
+ } while (class != object_class_by_name(TYPE_DEVICE));
+
+ return NULL;
+}
+
+void error_set_from_qdev_prop_error(Error **errp, int ret, Object *obj,
+ const char *name, const char *value)
+{
+ switch (ret) {
+ case -EEXIST:
+ error_setg(errp, "Property '%s.%s' can't take value '%s', it's in use",
+ object_get_typename(obj), name, value);
+ break;
+ default:
+ case -EINVAL:
+ error_setg(errp, QERR_PROPERTY_VALUE_BAD,
+ object_get_typename(obj), name, value);
+ break;
+ case -ENOENT:
+ error_setg(errp, "Property '%s.%s' can't find value '%s'",
+ object_get_typename(obj), name, value);
+ break;
+ case 0:
+ break;
+ }
+}
+
+void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value)
+{
+ object_property_set_bool(OBJECT(dev), name, value, &error_abort);
+}
+
+void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value)
+{
+ object_property_set_int(OBJECT(dev), name, value, &error_abort);
+}
+
+void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
+{
+ object_property_set_int(OBJECT(dev), name, value, &error_abort);
+}
+
+void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
+{
+ object_property_set_int(OBJECT(dev), name, value, &error_abort);
+}
+
+void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value)
+{
+ object_property_set_int(OBJECT(dev), name, value, &error_abort);
+}
+
+void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value)
+{
+ object_property_set_int(OBJECT(dev), name, value, &error_abort);
+}
+
+void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value)
+{
+ object_property_set_str(OBJECT(dev), name, value, &error_abort);
+}
+
+void qdev_prop_set_enum(DeviceState *dev, const char *name, int value)
+{
+ Property *prop;
+
+ prop = qdev_prop_find(dev, name);
+ object_property_set_str(OBJECT(dev), name,
+ qapi_enum_lookup(prop->info->enum_table, value),
+ &error_abort);
+}
+
+static GPtrArray *global_props(void)
+{
+ static GPtrArray *gp;
+
+ if (!gp) {
+ gp = g_ptr_array_new();
+ }
+
+ return gp;
+}
+
+void qdev_prop_register_global(GlobalProperty *prop)
+{
+ g_ptr_array_add(global_props(), prop);
+}
+
+const GlobalProperty *qdev_find_global_prop(Object *obj,
+ const char *name)
+{
+ GPtrArray *props = global_props();
+ const GlobalProperty *p;
+ int i;
+
+ for (i = 0; i < props->len; i++) {
+ p = g_ptr_array_index(props, i);
+ if (object_dynamic_cast(obj, p->driver)
+ && !strcmp(p->property, name)) {
+ return p;
+ }
+ }
+ return NULL;
+}
+
+int qdev_prop_check_globals(void)
+{
+ int i, ret = 0;
+
+ for (i = 0; i < global_props()->len; i++) {
+ GlobalProperty *prop;
+ ObjectClass *oc;
+ DeviceClass *dc;
+
+ prop = g_ptr_array_index(global_props(), i);
+ if (prop->used) {
+ continue;
+ }
+ oc = object_class_by_name(prop->driver);
+ oc = object_class_dynamic_cast(oc, TYPE_DEVICE);
+ if (!oc) {
+ warn_report("global %s.%s has invalid class name",
+ prop->driver, prop->property);
+ ret = 1;
+ continue;
+ }
+ dc = DEVICE_CLASS(oc);
+ if (!dc->hotpluggable && !prop->used) {
+ warn_report("global %s.%s=%s not used",
+ prop->driver, prop->property, prop->value);
+ ret = 1;
+ continue;
+ }
+ }
+ return ret;
+}
+
+void qdev_prop_set_globals(DeviceState *dev)
+{
+ object_apply_global_props(OBJECT(dev), global_props(),
+ dev->hotplugged ? NULL : &error_fatal);
+}
+
+/* --- 64bit unsigned int 'size' type --- */
+
+static void get_size(Object *obj, Visitor *v, const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ uint64_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_size(v, name, ptr, errp);
+}
+
+static void set_size(Object *obj, Visitor *v, const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ uint64_t *ptr = object_field_prop_ptr(obj, prop);
+
+ visit_type_size(v, name, ptr, errp);
+}
+
+const PropertyInfo qdev_prop_size = {
+ .name = "size",
+ .get = get_size,
+ .set = set_size,
+ .set_default_value = qdev_propinfo_set_default_value_uint,
+};
+
+/* --- object link property --- */
+
+static ObjectProperty *create_link_property(ObjectClass *oc, const char *name,
+ Property *prop)
+{
+ return object_class_property_add_link(oc, name, prop->link_type,
+ prop->offset,
+ qdev_prop_allow_set_link_before_realize,
+ OBJ_PROP_LINK_STRONG);
+}
+
+const PropertyInfo qdev_prop_link = {
+ .name = "link",
+ .create = create_link_property,
+};
+
+void qdev_property_add_static(DeviceState *dev, Property *prop)
+{
+ Object *obj = OBJECT(dev);
+ ObjectProperty *op;
+
+ assert(!prop->info->create);
+
+ op = object_property_add(obj, prop->name, prop->info->name,
+ field_prop_getter(prop->info),
+ field_prop_setter(prop->info),
+ prop->info->release,
+ prop);
+
+ object_property_set_description(obj, prop->name,
+ prop->info->description);
+
+ if (prop->set_default) {
+ prop->info->set_default_value(op, prop);
+ if (op->init) {
+ op->init(obj, op);
+ }
+ }
+}
+
+static void qdev_class_add_property(DeviceClass *klass, const char *name,
+ Property *prop)
+{
+ ObjectClass *oc = OBJECT_CLASS(klass);
+ ObjectProperty *op;
+
+ if (prop->info->create) {
+ op = prop->info->create(oc, name, prop);
+ } else {
+ op = object_class_property_add(oc,
+ name, prop->info->name,
+ field_prop_getter(prop->info),
+ field_prop_setter(prop->info),
+ prop->info->release,
+ prop);
+ }
+ if (prop->set_default) {
+ prop->info->set_default_value(op, prop);
+ }
+ object_class_property_set_description(oc, name, prop->info->description);
+}
+
+/**
+ * Legacy property handling
+ */
+
+static void qdev_get_legacy_property(Object *obj, Visitor *v,
+ const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+
+ char buffer[1024];
+ char *ptr = buffer;
+
+ prop->info->print(obj, prop, buffer, sizeof(buffer));
+ visit_type_str(v, name, &ptr, errp);
+}
+
+/**
+ * qdev_class_add_legacy_property:
+ * @dev: Device to add the property to.
+ * @prop: The qdev property definition.
+ *
+ * Add a legacy QOM property to @dev for qdev property @prop.
+ *
+ * Legacy properties are string versions of QOM properties. The format of
+ * the string depends on the property type. Legacy properties are only
+ * needed for "info qtree".
+ *
+ * Do not use this in new code! QOM Properties added through this interface
+ * will be given names in the "legacy" namespace.
+ */
+static void qdev_class_add_legacy_property(DeviceClass *dc, Property *prop)
+{
+ g_autofree char *name = NULL;
+
+ /* Register pointer properties as legacy properties */
+ if (!prop->info->print && prop->info->get) {
+ return;
+ }
+
+ name = g_strdup_printf("legacy-%s", prop->name);
+ object_class_property_add(OBJECT_CLASS(dc), name, "str",
+ prop->info->print ? qdev_get_legacy_property : prop->info->get,
+ NULL, NULL, prop);
+}
+
+void device_class_set_props(DeviceClass *dc, Property *props)
+{
+ Property *prop;
+
+ dc->props_ = props;
+ for (prop = props; prop && prop->name; prop++) {
+ qdev_class_add_legacy_property(dc, prop);
+ qdev_class_add_property(dc, prop->name, prop);
+ }
+}
+
+void qdev_alias_all_properties(DeviceState *target, Object *source)
+{
+ ObjectClass *class;
+ Property *prop;
+
+ class = object_get_class(OBJECT(target));
+ do {
+ DeviceClass *dc = DEVICE_CLASS(class);
+
+ for (prop = dc->props_; prop && prop->name; prop++) {
+ object_property_add_alias(source, prop->name,
+ OBJECT(target), prop->name);
+ }
+ class = object_class_get_parent(class);
+ } while (class != object_class_by_name(TYPE_DEVICE));
+}