Adding qemu as a submodule of KVMFORNFV

This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>

1 files changed, 0 insertions, 1370 deletions

diff --git a/qemu/hw/core/qdev.c b/qemu/hw/core/qdev.c
deleted file mode 100644
index db41aa1f2..000000000
--- a/qemu/hw/core/qdev.c
+++ /dev/null
@@ -1,1370 +0,0 @@
-/*
- *  Dynamic device configuration and creation.
- *
- *  Copyright (c) 2009 CodeSourcery
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-/* The theory here is that it should be possible to create a machine without
-   knowledge of specific devices.  Historically board init routines have
-   passed a bunch of arguments to each device, requiring the board know
-   exactly which device it is dealing with.  This file provides an abstract
-   API for device configuration and initialization.  Devices will generally
-   inherit from a particular bus (e.g. PCI or I2C) rather than
-   this API directly.  */
-
-#include "qemu/osdep.h"
-#include "hw/qdev.h"
-#include "hw/fw-path-provider.h"
-#include "sysemu/sysemu.h"
-#include "qapi/qmp/qerror.h"
-#include "qapi/visitor.h"
-#include "qapi/qmp/qjson.h"
-#include "qemu/error-report.h"
-#include "hw/hotplug.h"
-#include "hw/boards.h"
-#include "qapi-event.h"
-
-int qdev_hotplug = 0;
-static bool qdev_hot_added = false;
-static bool qdev_hot_removed = false;
-
-const VMStateDescription *qdev_get_vmsd(DeviceState *dev)
-{
-    DeviceClass *dc = DEVICE_GET_CLASS(dev);
-    return dc->vmsd;
-}
-
-const char *qdev_fw_name(DeviceState *dev)
-{
-    DeviceClass *dc = DEVICE_GET_CLASS(dev);
-
-    if (dc->fw_name) {
-        return dc->fw_name;
-    }
-
-    return object_get_typename(OBJECT(dev));
-}
-
-static void qdev_property_add_legacy(DeviceState *dev, Property *prop,
-                                     Error **errp);
-
-static void bus_remove_child(BusState *bus, DeviceState *child)
-{
-    BusChild *kid;
-
-    QTAILQ_FOREACH(kid, &bus->children, sibling) {
-        if (kid->child == child) {
-            char name[32];
-
-            snprintf(name, sizeof(name), "child[%d]", kid->index);
-            QTAILQ_REMOVE(&bus->children, kid, sibling);
-
-            /* This gives back ownership of kid->child back to us.  */
-            object_property_del(OBJECT(bus), name, NULL);
-            object_unref(OBJECT(kid->child));
-            g_free(kid);
-            return;
-        }
-    }
-}
-
-static void bus_add_child(BusState *bus, DeviceState *child)
-{
-    char name[32];
-    BusChild *kid = g_malloc0(sizeof(*kid));
-
-    kid->index = bus->max_index++;
-    kid->child = child;
-    object_ref(OBJECT(kid->child));
-
-    QTAILQ_INSERT_HEAD(&bus->children, kid, sibling);
-
-    /* This transfers ownership of kid->child to the property.  */
-    snprintf(name, sizeof(name), "child[%d]", kid->index);
-    object_property_add_link(OBJECT(bus), name,
-                             object_get_typename(OBJECT(child)),
-                             (Object **)&kid->child,
-                             NULL, /* read-only property */
-                             0, /* return ownership on prop deletion */
-                             NULL);
-}
-
-void qdev_set_parent_bus(DeviceState *dev, BusState *bus)
-{
-    dev->parent_bus = bus;
-    object_ref(OBJECT(bus));
-    bus_add_child(bus, dev);
-}
-
-static void qbus_set_hotplug_handler_internal(BusState *bus, Object *handler,
-                                              Error **errp)
-{
-
-    object_property_set_link(OBJECT(bus), OBJECT(handler),
-                             QDEV_HOTPLUG_HANDLER_PROPERTY, errp);
-}
-
-void qbus_set_hotplug_handler(BusState *bus, DeviceState *handler, Error **errp)
-{
-    qbus_set_hotplug_handler_internal(bus, OBJECT(handler), errp);
-}
-
-void qbus_set_bus_hotplug_handler(BusState *bus, Error **errp)
-{
-    qbus_set_hotplug_handler_internal(bus, OBJECT(bus), errp);
-}
-
-/* Create a new device.  This only initializes the device state
-   structure and allows properties to be set.  The device still needs
-   to be realized.  See qdev-core.h.  */
-DeviceState *qdev_create(BusState *bus, const char *name)
-{
-    DeviceState *dev;
-
-    dev = qdev_try_create(bus, name);
-    if (!dev) {
-        if (bus) {
-            error_report("Unknown device '%s' for bus '%s'", name,
-                         object_get_typename(OBJECT(bus)));
-        } else {
-            error_report("Unknown device '%s' for default sysbus", name);
-        }
-        abort();
-    }
-
-    return dev;
-}
-
-DeviceState *qdev_try_create(BusState *bus, const char *type)
-{
-    DeviceState *dev;
-
-    if (object_class_by_name(type) == NULL) {
-        return NULL;
-    }
-    dev = DEVICE(object_new(type));
-    if (!dev) {
-        return NULL;
-    }
-
-    if (!bus) {
-        bus = sysbus_get_default();
-    }
-
-    qdev_set_parent_bus(dev, bus);
-    object_unref(OBJECT(dev));
-    return dev;
-}
-
-static QTAILQ_HEAD(device_listeners, DeviceListener) device_listeners
-    = QTAILQ_HEAD_INITIALIZER(device_listeners);
-
-enum ListenerDirection { Forward, Reverse };
-
-#define DEVICE_LISTENER_CALL(_callback, _direction, _args...)     \
-    do {                                                          \
-        DeviceListener *_listener;                                \
-                                                                  \
-        switch (_direction) {                                     \
-        case Forward:                                             \
-            QTAILQ_FOREACH(_listener, &device_listeners, link) {  \
-                if (_listener->_callback) {                       \
-                    _listener->_callback(_listener, ##_args);     \
-                }                                                 \
-            }                                                     \
-            break;                                                \
-        case Reverse:                                             \
-            QTAILQ_FOREACH_REVERSE(_listener, &device_listeners,  \
-                                   device_listeners, link) {      \
-                if (_listener->_callback) {                       \
-                    _listener->_callback(_listener, ##_args);     \
-                }                                                 \
-            }                                                     \
-            break;                                                \
-        default:                                                  \
-            abort();                                              \
-        }                                                         \
-    } while (0)
-
-static int device_listener_add(DeviceState *dev, void *opaque)
-{
-    DEVICE_LISTENER_CALL(realize, Forward, dev);
-
-    return 0;
-}
-
-void device_listener_register(DeviceListener *listener)
-{
-    QTAILQ_INSERT_TAIL(&device_listeners, listener, link);
-
-    qbus_walk_children(sysbus_get_default(), NULL, NULL, device_listener_add,
-                       NULL, NULL);
-}
-
-void device_listener_unregister(DeviceListener *listener)
-{
-    QTAILQ_REMOVE(&device_listeners, listener, link);
-}
-
-static void device_realize(DeviceState *dev, Error **errp)
-{
-    DeviceClass *dc = DEVICE_GET_CLASS(dev);
-
-    if (dc->init) {
-        int rc = dc->init(dev);
-        if (rc < 0) {
-            error_setg(errp, "Device initialization failed.");
-            return;
-        }
-    }
-}
-
-static void device_unrealize(DeviceState *dev, Error **errp)
-{
-    DeviceClass *dc = DEVICE_GET_CLASS(dev);
-
-    if (dc->exit) {
-        int rc = dc->exit(dev);
-        if (rc < 0) {
-            error_setg(errp, "Device exit failed.");
-            return;
-        }
-    }
-}
-
-void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
-                                 int required_for_version)
-{
-    assert(!dev->realized);
-    dev->instance_id_alias = alias_id;
-    dev->alias_required_for_version = required_for_version;
-}
-
-HotplugHandler *qdev_get_hotplug_handler(DeviceState *dev)
-{
-    HotplugHandler *hotplug_ctrl = NULL;
-
-    if (dev->parent_bus && dev->parent_bus->hotplug_handler) {
-        hotplug_ctrl = dev->parent_bus->hotplug_handler;
-    } else if (object_dynamic_cast(qdev_get_machine(), TYPE_MACHINE)) {
-        MachineState *machine = MACHINE(qdev_get_machine());
-        MachineClass *mc = MACHINE_GET_CLASS(machine);
-
-        if (mc->get_hotplug_handler) {
-            hotplug_ctrl = mc->get_hotplug_handler(machine, dev);
-        }
-    }
-    return hotplug_ctrl;
-}
-
-void qdev_unplug(DeviceState *dev, Error **errp)
-{
-    DeviceClass *dc = DEVICE_GET_CLASS(dev);
-    HotplugHandler *hotplug_ctrl;
-    HotplugHandlerClass *hdc;
-
-    if (dev->parent_bus && !qbus_is_hotpluggable(dev->parent_bus)) {
-        error_setg(errp, QERR_BUS_NO_HOTPLUG, dev->parent_bus->name);
-        return;
-    }
-
-    if (!dc->hotpluggable) {
-        error_setg(errp, QERR_DEVICE_NO_HOTPLUG,
-                   object_get_typename(OBJECT(dev)));
-        return;
-    }
-
-    qdev_hot_removed = true;
-
-    hotplug_ctrl = qdev_get_hotplug_handler(dev);
-    /* hotpluggable device MUST have HotplugHandler, if it doesn't
-     * then something is very wrong with it */
-    g_assert(hotplug_ctrl);
-
-    /* If device supports async unplug just request it to be done,
-     * otherwise just remove it synchronously */
-    hdc = HOTPLUG_HANDLER_GET_CLASS(hotplug_ctrl);
-    if (hdc->unplug_request) {
-        hotplug_handler_unplug_request(hotplug_ctrl, dev, errp);
-    } else {
-        hotplug_handler_unplug(hotplug_ctrl, dev, errp);
-    }
-}
-
-static int qdev_reset_one(DeviceState *dev, void *opaque)
-{
-    device_reset(dev);
-
-    return 0;
-}
-
-static int qbus_reset_one(BusState *bus, void *opaque)
-{
-    BusClass *bc = BUS_GET_CLASS(bus);
-    if (bc->reset) {
-        bc->reset(bus);
-    }
-    return 0;
-}
-
-void qdev_reset_all(DeviceState *dev)
-{
-    qdev_walk_children(dev, NULL, NULL, qdev_reset_one, qbus_reset_one, NULL);
-}
-
-void qdev_reset_all_fn(void *opaque)
-{
-    qdev_reset_all(DEVICE(opaque));
-}
-
-void qbus_reset_all(BusState *bus)
-{
-    qbus_walk_children(bus, NULL, NULL, qdev_reset_one, qbus_reset_one, NULL);
-}
-
-void qbus_reset_all_fn(void *opaque)
-{
-    BusState *bus = opaque;
-    qbus_reset_all(bus);
-}
-
-/* can be used as ->unplug() callback for the simple cases */
-void qdev_simple_device_unplug_cb(HotplugHandler *hotplug_dev,
-                                  DeviceState *dev, Error **errp)
-{
-    /* just zap it */
-    object_unparent(OBJECT(dev));
-}
-
-/*
- * Realize @dev.
- * Device properties should be set before calling this function.  IRQs
- * and MMIO regions should be connected/mapped after calling this
- * function.
- * On failure, report an error with error_report() and terminate the
- * program.  This is okay during machine creation.  Don't use for
- * hotplug, because there callers need to recover from failure.
- * Exception: if you know the device's init() callback can't fail,
- * then qdev_init_nofail() can't fail either, and is therefore usable
- * even then.  But relying on the device implementation that way is
- * somewhat unclean, and best avoided.
- */
-void qdev_init_nofail(DeviceState *dev)
-{
-    Error *err = NULL;
-
-    assert(!dev->realized);
-
-    object_property_set_bool(OBJECT(dev), true, "realized", &err);
-    if (err) {
-        error_reportf_err(err, "Initialization of device %s failed: ",
-                          object_get_typename(OBJECT(dev)));
-        exit(1);
-    }
-}
-
-void qdev_machine_creation_done(void)
-{
-    /*
-     * ok, initial machine setup is done, starting from now we can
-     * only create hotpluggable devices
-     */
-    qdev_hotplug = 1;
-}
-
-bool qdev_machine_modified(void)
-{
-    return qdev_hot_added || qdev_hot_removed;
-}
-
-BusState *qdev_get_parent_bus(DeviceState *dev)
-{
-    return dev->parent_bus;
-}
-
-static NamedGPIOList *qdev_get_named_gpio_list(DeviceState *dev,
-                                               const char *name)
-{
-    NamedGPIOList *ngl;
-
-    QLIST_FOREACH(ngl, &dev->gpios, node) {
-        /* NULL is a valid and matchable name, otherwise do a normal
-         * strcmp match.
-         */
-        if ((!ngl->name && !name) ||
-                (name && ngl->name && strcmp(name, ngl->name) == 0)) {
-            return ngl;
-        }
-    }
-
-    ngl = g_malloc0(sizeof(*ngl));
-    ngl->name = g_strdup(name);
-    QLIST_INSERT_HEAD(&dev->gpios, ngl, node);
-    return ngl;
-}
-
-void qdev_init_gpio_in_named(DeviceState *dev, qemu_irq_handler handler,
-                             const char *name, int n)
-{
-    int i;
-    NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name);
-
-    assert(gpio_list->num_out == 0 || !name);
-    gpio_list->in = qemu_extend_irqs(gpio_list->in, gpio_list->num_in, handler,
-                                     dev, n);
-
-    if (!name) {
-        name = "unnamed-gpio-in";
-    }
-    for (i = gpio_list->num_in; i < gpio_list->num_in + n; i++) {
-        gchar *propname = g_strdup_printf("%s[%u]", name, i);
-
-        object_property_add_child(OBJECT(dev), propname,
-                                  OBJECT(gpio_list->in[i]), &error_abort);
-        g_free(propname);
-    }
-
-    gpio_list->num_in += n;
-}
-
-void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n)
-{
-    qdev_init_gpio_in_named(dev, handler, NULL, n);
-}
-
-void qdev_init_gpio_out_named(DeviceState *dev, qemu_irq *pins,
-                              const char *name, int n)
-{
-    int i;
-    NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name);
-
-    assert(gpio_list->num_in == 0 || !name);
-
-    if (!name) {
-        name = "unnamed-gpio-out";
-    }
-    memset(pins, 0, sizeof(*pins) * n);
-    for (i = 0; i < n; ++i) {
-        gchar *propname = g_strdup_printf("%s[%u]", name,
-                                          gpio_list->num_out + i);
-
-        object_property_add_link(OBJECT(dev), propname, TYPE_IRQ,
-                                 (Object **)&pins[i],
-                                 object_property_allow_set_link,
-                                 OBJ_PROP_LINK_UNREF_ON_RELEASE,
-                                 &error_abort);
-        g_free(propname);
-    }
-    gpio_list->num_out += n;
-}
-
-void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n)
-{
-    qdev_init_gpio_out_named(dev, pins, NULL, n);
-}
-
-qemu_irq qdev_get_gpio_in_named(DeviceState *dev, const char *name, int n)
-{
-    NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name);
-
-    assert(n >= 0 && n < gpio_list->num_in);
-    return gpio_list->in[n];
-}
-
-qemu_irq qdev_get_gpio_in(DeviceState *dev, int n)
-{
-    return qdev_get_gpio_in_named(dev, NULL, n);
-}
-
-void qdev_connect_gpio_out_named(DeviceState *dev, const char *name, int n,
-                                 qemu_irq pin)
-{
-    char *propname = g_strdup_printf("%s[%d]",
-                                     name ? name : "unnamed-gpio-out", n);
-    if (pin) {
-        /* We need a name for object_property_set_link to work.  If the
-         * object has a parent, object_property_add_child will come back
-         * with an error without doing anything.  If it has none, it will
-         * never fail.  So we can just call it with a NULL Error pointer.
-         */
-        object_property_add_child(container_get(qdev_get_machine(),
-                                                "/unattached"),
-                                  "non-qdev-gpio[*]", OBJECT(pin), NULL);
-    }
-    object_property_set_link(OBJECT(dev), OBJECT(pin), propname, &error_abort);
-    g_free(propname);
-}
-
-qemu_irq qdev_get_gpio_out_connector(DeviceState *dev, const char *name, int n)
-{
-    char *propname = g_strdup_printf("%s[%d]",
-                                     name ? name : "unnamed-gpio-out", n);
-
-    qemu_irq ret = (qemu_irq)object_property_get_link(OBJECT(dev), propname,
-                                                      NULL);
-
-    return ret;
-}
-
-/* disconnect a GPIO output, returning the disconnected input (if any) */
-
-static qemu_irq qdev_disconnect_gpio_out_named(DeviceState *dev,
-                                               const char *name, int n)
-{
-    char *propname = g_strdup_printf("%s[%d]",
-                                     name ? name : "unnamed-gpio-out", n);
-
-    qemu_irq ret = (qemu_irq)object_property_get_link(OBJECT(dev), propname,
-                                                      NULL);
-    if (ret) {
-        object_property_set_link(OBJECT(dev), NULL, propname, NULL);
-    }
-    g_free(propname);
-    return ret;
-}
-
-qemu_irq qdev_intercept_gpio_out(DeviceState *dev, qemu_irq icpt,
-                                 const char *name, int n)
-{
-    qemu_irq disconnected = qdev_disconnect_gpio_out_named(dev, name, n);
-    qdev_connect_gpio_out_named(dev, name, n, icpt);
-    return disconnected;
-}
-
-void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin)
-{
-    qdev_connect_gpio_out_named(dev, NULL, n, pin);
-}
-
-void qdev_pass_gpios(DeviceState *dev, DeviceState *container,
-                     const char *name)
-{
-    int i;
-    NamedGPIOList *ngl = qdev_get_named_gpio_list(dev, name);
-
-    for (i = 0; i < ngl->num_in; i++) {
-        const char *nm = ngl->name ? ngl->name : "unnamed-gpio-in";
-        char *propname = g_strdup_printf("%s[%d]", nm, i);
-
-        object_property_add_alias(OBJECT(container), propname,
-                                  OBJECT(dev), propname,
-                                  &error_abort);
-        g_free(propname);
-    }
-    for (i = 0; i < ngl->num_out; i++) {
-        const char *nm = ngl->name ? ngl->name : "unnamed-gpio-out";
-        char *propname = g_strdup_printf("%s[%d]", nm, i);
-
-        object_property_add_alias(OBJECT(container), propname,
-                                  OBJECT(dev), propname,
-                                  &error_abort);
-        g_free(propname);
-    }
-    QLIST_REMOVE(ngl, node);
-    QLIST_INSERT_HEAD(&container->gpios, ngl, node);
-}
-
-BusState *qdev_get_child_bus(DeviceState *dev, const char *name)
-{
-    BusState *bus;
-    Object *child = object_resolve_path_component(OBJECT(dev), name);
-
-    bus = (BusState *)object_dynamic_cast(child, TYPE_BUS);
-    if (bus) {
-        return bus;
-    }
-
-    QLIST_FOREACH(bus, &dev->child_bus, sibling) {
-        if (strcmp(name, bus->name) == 0) {
-            return bus;
-        }
-    }
-    return NULL;
-}
-
-int qbus_walk_children(BusState *bus,
-                       qdev_walkerfn *pre_devfn, qbus_walkerfn *pre_busfn,
-                       qdev_walkerfn *post_devfn, qbus_walkerfn *post_busfn,
-                       void *opaque)
-{
-    BusChild *kid;
-    int err;
-
-    if (pre_busfn) {
-        err = pre_busfn(bus, opaque);
-        if (err) {
-            return err;
-        }
-    }
-
-    QTAILQ_FOREACH(kid, &bus->children, sibling) {
-        err = qdev_walk_children(kid->child,
-                                 pre_devfn, pre_busfn,
-                                 post_devfn, post_busfn, opaque);
-        if (err < 0) {
-            return err;
-        }
-    }
-
-    if (post_busfn) {
-        err = post_busfn(bus, opaque);
-        if (err) {
-            return err;
-        }
-    }
-
-    return 0;
-}
-
-int qdev_walk_children(DeviceState *dev,
-                       qdev_walkerfn *pre_devfn, qbus_walkerfn *pre_busfn,
-                       qdev_walkerfn *post_devfn, qbus_walkerfn *post_busfn,
-                       void *opaque)
-{
-    BusState *bus;
-    int err;
-
-    if (pre_devfn) {
-        err = pre_devfn(dev, opaque);
-        if (err) {
-            return err;
-        }
-    }
-
-    QLIST_FOREACH(bus, &dev->child_bus, sibling) {
-        err = qbus_walk_children(bus, pre_devfn, pre_busfn,
-                                 post_devfn, post_busfn, opaque);
-        if (err < 0) {
-            return err;
-        }
-    }
-
-    if (post_devfn) {
-        err = post_devfn(dev, opaque);
-        if (err) {
-            return err;
-        }
-    }
-
-    return 0;
-}
-
-DeviceState *qdev_find_recursive(BusState *bus, const char *id)
-{
-    BusChild *kid;
-    DeviceState *ret;
-    BusState *child;
-
-    QTAILQ_FOREACH(kid, &bus->children, sibling) {
-        DeviceState *dev = kid->child;
-
-        if (dev->id && strcmp(dev->id, id) == 0) {
-            return dev;
-        }
-
-        QLIST_FOREACH(child, &dev->child_bus, sibling) {
-            ret = qdev_find_recursive(child, id);
-            if (ret) {
-                return ret;
-            }
-        }
-    }
-    return NULL;
-}
-
-static void qbus_realize(BusState *bus, DeviceState *parent, const char *name)
-{
-    const char *typename = object_get_typename(OBJECT(bus));
-    BusClass *bc;
-    char *buf;
-    int i, len, bus_id;
-
-    bus->parent = parent;
-
-    if (name) {
-        bus->name = g_strdup(name);
-    } else if (bus->parent && bus->parent->id) {
-        /* parent device has id -> use it plus parent-bus-id for bus name */
-        bus_id = bus->parent->num_child_bus;
-
-        len = strlen(bus->parent->id) + 16;
-        buf = g_malloc(len);
-        snprintf(buf, len, "%s.%d", bus->parent->id, bus_id);
-        bus->name = buf;
-    } else {
-        /* no id -> use lowercase bus type plus global bus-id for bus name */
-        bc = BUS_GET_CLASS(bus);
-        bus_id = bc->automatic_ids++;
-
-        len = strlen(typename) + 16;
-        buf = g_malloc(len);
-        len = snprintf(buf, len, "%s.%d", typename, bus_id);
-        for (i = 0; i < len; i++) {
-            buf[i] = qemu_tolower(buf[i]);
-        }
-        bus->name = buf;
-    }
-
-    if (bus->parent) {
-        QLIST_INSERT_HEAD(&bus->parent->child_bus, bus, sibling);
-        bus->parent->num_child_bus++;
-        object_property_add_child(OBJECT(bus->parent), bus->name, OBJECT(bus), NULL);
-        object_unref(OBJECT(bus));
-    } else if (bus != sysbus_get_default()) {
-        /* TODO: once all bus devices are qdevified,
-           only reset handler for main_system_bus should be registered here. */
-        qemu_register_reset(qbus_reset_all_fn, bus);
-    }
-}
-
-static void bus_unparent(Object *obj)
-{
-    BusState *bus = BUS(obj);
-    BusChild *kid;
-
-    while ((kid = QTAILQ_FIRST(&bus->children)) != NULL) {
-        DeviceState *dev = kid->child;
-        object_unparent(OBJECT(dev));
-    }
-    if (bus->parent) {
-        QLIST_REMOVE(bus, sibling);
-        bus->parent->num_child_bus--;
-        bus->parent = NULL;
-    } else {
-        assert(bus != sysbus_get_default()); /* main_system_bus is never freed */
-        qemu_unregister_reset(qbus_reset_all_fn, bus);
-    }
-}
-
-static bool bus_get_realized(Object *obj, Error **errp)
-{
-    BusState *bus = BUS(obj);
-
-    return bus->realized;
-}
-
-static void bus_set_realized(Object *obj, bool value, Error **errp)
-{
-    BusState *bus = BUS(obj);
-    BusClass *bc = BUS_GET_CLASS(bus);
-    BusChild *kid;
-    Error *local_err = NULL;
-
-    if (value && !bus->realized) {
-        if (bc->realize) {
-            bc->realize(bus, &local_err);
-        }
-
-        /* TODO: recursive realization */
-    } else if (!value && bus->realized) {
-        QTAILQ_FOREACH(kid, &bus->children, sibling) {
-            DeviceState *dev = kid->child;
-            object_property_set_bool(OBJECT(dev), false, "realized",
-                                     &local_err);
-            if (local_err != NULL) {
-                break;
-            }
-        }
-        if (bc->unrealize && local_err == NULL) {
-            bc->unrealize(bus, &local_err);
-        }
-    }
-
-    if (local_err != NULL) {
-        error_propagate(errp, local_err);
-        return;
-    }
-
-    bus->realized = value;
-}
-
-void qbus_create_inplace(void *bus, size_t size, const char *typename,
-                         DeviceState *parent, const char *name)
-{
-    object_initialize(bus, size, typename);
-    qbus_realize(bus, parent, name);
-}
-
-BusState *qbus_create(const char *typename, DeviceState *parent, const char *name)
-{
-    BusState *bus;
-
-    bus = BUS(object_new(typename));
-    qbus_realize(bus, parent, name);
-
-    return bus;
-}
-
-static char *bus_get_fw_dev_path(BusState *bus, DeviceState *dev)
-{
-    BusClass *bc = BUS_GET_CLASS(bus);
-
-    if (bc->get_fw_dev_path) {
-        return bc->get_fw_dev_path(dev);
-    }
-
-    return NULL;
-}
-
-static char *qdev_get_fw_dev_path_from_handler(BusState *bus, DeviceState *dev)
-{
-    Object *obj = OBJECT(dev);
-    char *d = NULL;
-
-    while (!d && obj->parent) {
-        obj = obj->parent;
-        d = fw_path_provider_try_get_dev_path(obj, bus, dev);
-    }
-    return d;
-}
-
-char *qdev_get_own_fw_dev_path_from_handler(BusState *bus, DeviceState *dev)
-{
-    Object *obj = OBJECT(dev);
-
-    return fw_path_provider_try_get_dev_path(obj, bus, dev);
-}
-
-static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size)
-{
-    int l = 0;
-
-    if (dev && dev->parent_bus) {
-        char *d;
-        l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size);
-        d = qdev_get_fw_dev_path_from_handler(dev->parent_bus, dev);
-        if (!d) {
-            d = bus_get_fw_dev_path(dev->parent_bus, dev);
-        }
-        if (d) {
-            l += snprintf(p + l, size - l, "%s", d);
-            g_free(d);
-        } else {
-            return l;
-        }
-    }
-    l += snprintf(p + l , size - l, "/");
-
-    return l;
-}
-
-char* qdev_get_fw_dev_path(DeviceState *dev)
-{
-    char path[128];
-    int l;
-
-    l = qdev_get_fw_dev_path_helper(dev, path, 128);
-
-    path[l-1] = '\0';
-
-    return g_strdup(path);
-}
-
-char *qdev_get_dev_path(DeviceState *dev)
-{
-    BusClass *bc;
-
-    if (!dev || !dev->parent_bus) {
-        return NULL;
-    }
-
-    bc = BUS_GET_CLASS(dev->parent_bus);
-    if (bc->get_dev_path) {
-        return bc->get_dev_path(dev);
-    }
-
-    return NULL;
-}
-
-/**
- * Legacy property handling
- */
-
-static void qdev_get_legacy_property(Object *obj, Visitor *v,
-                                     const char *name, void *opaque,
-                                     Error **errp)
-{
-    DeviceState *dev = DEVICE(obj);
-    Property *prop = opaque;
-
-    char buffer[1024];
-    char *ptr = buffer;
-
-    prop->info->print(dev, prop, buffer, sizeof(buffer));
-    visit_type_str(v, name, &ptr, errp);
-}
-
-/**
- * @qdev_add_legacy_property - adds a legacy property
- *
- * Do not use this is new code!  Properties added through this interface will
- * be given names and types in the "legacy" namespace.
- *
- * Legacy properties are string versions of other OOM properties.  The format
- * of the string depends on the property type.
- */
-static void qdev_property_add_legacy(DeviceState *dev, Property *prop,
-                                     Error **errp)
-{
-    gchar *name;
-
-    /* Register pointer properties as legacy properties */
-    if (!prop->info->print && prop->info->get) {
-        return;
-    }
-
-    name = g_strdup_printf("legacy-%s", prop->name);
-    object_property_add(OBJECT(dev), name, "str",
-                        prop->info->print ? qdev_get_legacy_property : prop->info->get,
-                        NULL,
-                        NULL,
-                        prop, errp);
-
-    g_free(name);
-}
-
-/**
- * @qdev_property_add_static - add a @Property to a device.
- *
- * Static properties access data in a struct.  The actual type of the
- * property and the field depends on the property type.
- */
-void qdev_property_add_static(DeviceState *dev, Property *prop,
-                              Error **errp)
-{
-    Error *local_err = NULL;
-    Object *obj = OBJECT(dev);
-
-    /*
-     * TODO qdev_prop_ptr does not have getters or setters.  It must
-     * go now that it can be replaced with links.  The test should be
-     * removed along with it: all static properties are read/write.
-     */
-    if (!prop->info->get && !prop->info->set) {
-        return;
-    }
-
-    object_property_add(obj, prop->name, prop->info->name,
-                        prop->info->get, prop->info->set,
-                        prop->info->release,
-                        prop, &local_err);
-
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-
-    object_property_set_description(obj, prop->name,
-                                    prop->info->description,
-                                    &error_abort);
-
-    if (prop->qtype == QTYPE_NONE) {
-        return;
-    }
-
-    if (prop->qtype == QTYPE_QBOOL) {
-        object_property_set_bool(obj, prop->defval, prop->name, &error_abort);
-    } else if (prop->info->enum_table) {
-        object_property_set_str(obj, prop->info->enum_table[prop->defval],
-                                prop->name, &error_abort);
-    } else if (prop->qtype == QTYPE_QINT) {
-        object_property_set_int(obj, prop->defval, prop->name, &error_abort);
-    }
-}
-
-/* @qdev_alias_all_properties - Add alias properties to the source object for
- * all qdev properties on the target DeviceState.
- */
-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,
-                                      &error_abort);
-        }
-        class = object_class_get_parent(class);
-    } while (class != object_class_by_name(TYPE_DEVICE));
-}
-
-static int qdev_add_hotpluggable_device(Object *obj, void *opaque)
-{
-    GSList **list = opaque;
-    DeviceState *dev = (DeviceState *)object_dynamic_cast(OBJECT(obj),
-                                                          TYPE_DEVICE);
-
-    if (dev == NULL) {
-        return 0;
-    }
-
-    if (dev->realized && object_property_get_bool(obj, "hotpluggable", NULL)) {
-        *list = g_slist_append(*list, dev);
-    }
-
-    return 0;
-}
-
-GSList *qdev_build_hotpluggable_device_list(Object *peripheral)
-{
-    GSList *list = NULL;
-
-    object_child_foreach(peripheral, qdev_add_hotpluggable_device, &list);
-
-    return list;
-}
-
-static bool device_get_realized(Object *obj, Error **errp)
-{
-    DeviceState *dev = DEVICE(obj);
-    return dev->realized;
-}
-
-static void device_set_realized(Object *obj, bool value, Error **errp)
-{
-    DeviceState *dev = DEVICE(obj);
-    DeviceClass *dc = DEVICE_GET_CLASS(dev);
-    HotplugHandler *hotplug_ctrl;
-    BusState *bus;
-    Error *local_err = NULL;
-
-    if (dev->hotplugged && !dc->hotpluggable) {
-        error_setg(errp, QERR_DEVICE_NO_HOTPLUG, object_get_typename(obj));
-        return;
-    }
-
-    if (value && !dev->realized) {
-        if (!obj->parent) {
-            static int unattached_count;
-            gchar *name = g_strdup_printf("device[%d]", unattached_count++);
-
-            object_property_add_child(container_get(qdev_get_machine(),
-                                                    "/unattached"),
-                                      name, obj, &error_abort);
-            g_free(name);
-        }
-
-        if (dc->realize) {
-            dc->realize(dev, &local_err);
-        }
-
-        if (local_err != NULL) {
-            goto fail;
-        }
-
-        DEVICE_LISTENER_CALL(realize, Forward, dev);
-
-        hotplug_ctrl = qdev_get_hotplug_handler(dev);
-        if (hotplug_ctrl) {
-            hotplug_handler_plug(hotplug_ctrl, dev, &local_err);
-        }
-
-        if (local_err != NULL) {
-            goto post_realize_fail;
-        }
-
-        if (qdev_get_vmsd(dev)) {
-            vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev,
-                                           dev->instance_id_alias,
-                                           dev->alias_required_for_version);
-        }
-
-        QLIST_FOREACH(bus, &dev->child_bus, sibling) {
-            object_property_set_bool(OBJECT(bus), true, "realized",
-                                         &local_err);
-            if (local_err != NULL) {
-                goto child_realize_fail;
-            }
-        }
-        if (dev->hotplugged) {
-            device_reset(dev);
-        }
-        dev->pending_deleted_event = false;
-    } else if (!value && dev->realized) {
-        Error **local_errp = NULL;
-        QLIST_FOREACH(bus, &dev->child_bus, sibling) {
-            local_errp = local_err ? NULL : &local_err;
-            object_property_set_bool(OBJECT(bus), false, "realized",
-                                     local_errp);
-        }
-        if (qdev_get_vmsd(dev)) {
-            vmstate_unregister(dev, qdev_get_vmsd(dev), dev);
-        }
-        if (dc->unrealize) {
-            local_errp = local_err ? NULL : &local_err;
-            dc->unrealize(dev, local_errp);
-        }
-        dev->pending_deleted_event = true;
-        DEVICE_LISTENER_CALL(unrealize, Reverse, dev);
-    }
-
-    if (local_err != NULL) {
-        goto fail;
-    }
-
-    dev->realized = value;
-    return;
-
-child_realize_fail:
-    QLIST_FOREACH(bus, &dev->child_bus, sibling) {
-        object_property_set_bool(OBJECT(bus), false, "realized",
-                                 NULL);
-    }
-
-    if (qdev_get_vmsd(dev)) {
-        vmstate_unregister(dev, qdev_get_vmsd(dev), dev);
-    }
-
-post_realize_fail:
-    if (dc->unrealize) {
-        dc->unrealize(dev, NULL);
-    }
-
-fail:
-    error_propagate(errp, local_err);
-}
-
-static bool device_get_hotpluggable(Object *obj, Error **errp)
-{
-    DeviceClass *dc = DEVICE_GET_CLASS(obj);
-    DeviceState *dev = DEVICE(obj);
-
-    return dc->hotpluggable && (dev->parent_bus == NULL ||
-                                qbus_is_hotpluggable(dev->parent_bus));
-}
-
-static bool device_get_hotplugged(Object *obj, Error **err)
-{
-    DeviceState *dev = DEVICE(obj);
-
-    return dev->hotplugged;
-}
-
-static void device_set_hotplugged(Object *obj, bool value, Error **err)
-{
-    DeviceState *dev = DEVICE(obj);
-
-    dev->hotplugged = value;
-}
-
-static void device_initfn(Object *obj)
-{
-    DeviceState *dev = DEVICE(obj);
-    ObjectClass *class;
-    Property *prop;
-
-    if (qdev_hotplug) {
-        dev->hotplugged = 1;
-        qdev_hot_added = true;
-    }
-
-    dev->instance_id_alias = -1;
-    dev->realized = false;
-
-    object_property_add_bool(obj, "realized",
-                             device_get_realized, device_set_realized, NULL);
-    object_property_add_bool(obj, "hotpluggable",
-                             device_get_hotpluggable, NULL, NULL);
-    object_property_add_bool(obj, "hotplugged",
-                             device_get_hotplugged, device_set_hotplugged,
-                             &error_abort);
-
-    class = object_get_class(OBJECT(dev));
-    do {
-        for (prop = DEVICE_CLASS(class)->props; prop && prop->name; prop++) {
-            qdev_property_add_legacy(dev, prop, &error_abort);
-            qdev_property_add_static(dev, prop, &error_abort);
-        }
-        class = object_class_get_parent(class);
-    } while (class != object_class_by_name(TYPE_DEVICE));
-
-    object_property_add_link(OBJECT(dev), "parent_bus", TYPE_BUS,
-                             (Object **)&dev->parent_bus, NULL, 0,
-                             &error_abort);
-    QLIST_INIT(&dev->gpios);
-}
-
-static void device_post_init(Object *obj)
-{
-    qdev_prop_set_globals(DEVICE(obj));
-}
-
-/* Unlink device from bus and free the structure.  */
-static void device_finalize(Object *obj)
-{
-    NamedGPIOList *ngl, *next;
-
-    DeviceState *dev = DEVICE(obj);
-
-    QLIST_FOREACH_SAFE(ngl, &dev->gpios, node, next) {
-        QLIST_REMOVE(ngl, node);
-        qemu_free_irqs(ngl->in, ngl->num_in);
-        g_free(ngl->name);
-        g_free(ngl);
-        /* ngl->out irqs are owned by the other end and should not be freed
-         * here
-         */
-    }
-}
-
-static void device_class_base_init(ObjectClass *class, void *data)
-{
-    DeviceClass *klass = DEVICE_CLASS(class);
-
-    /* We explicitly look up properties in the superclasses,
-     * so do not propagate them to the subclasses.
-     */
-    klass->props = NULL;
-}
-
-static void device_unparent(Object *obj)
-{
-    DeviceState *dev = DEVICE(obj);
-    BusState *bus;
-
-    if (dev->realized) {
-        object_property_set_bool(obj, false, "realized", NULL);
-    }
-    while (dev->num_child_bus) {
-        bus = QLIST_FIRST(&dev->child_bus);
-        object_unparent(OBJECT(bus));
-    }
-    if (dev->parent_bus) {
-        bus_remove_child(dev->parent_bus, dev);
-        object_unref(OBJECT(dev->parent_bus));
-        dev->parent_bus = NULL;
-    }
-
-    /* Only send event if the device had been completely realized */
-    if (dev->pending_deleted_event) {
-        gchar *path = object_get_canonical_path(OBJECT(dev));
-
-        qapi_event_send_device_deleted(!!dev->id, dev->id, path, &error_abort);
-        g_free(path);
-    }
-
-    qemu_opts_del(dev->opts);
-    dev->opts = NULL;
-}
-
-static void device_class_init(ObjectClass *class, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(class);
-
-    class->unparent = device_unparent;
-    dc->realize = device_realize;
-    dc->unrealize = device_unrealize;
-
-    /* by default all devices were considered as hotpluggable,
-     * so with intent to check it in generic qdev_unplug() /
-     * device_set_realized() functions make every device
-     * hotpluggable. Devices that shouldn't be hotpluggable,
-     * should override it in their class_init()
-     */
-    dc->hotpluggable = true;
-}
-
-void device_reset(DeviceState *dev)
-{
-    DeviceClass *klass = DEVICE_GET_CLASS(dev);
-
-    if (klass->reset) {
-        klass->reset(dev);
-    }
-}
-
-Object *qdev_get_machine(void)
-{
-    static Object *dev;
-
-    if (dev == NULL) {
-        dev = container_get(object_get_root(), "/machine");
-    }
-
-    return dev;
-}
-
-static const TypeInfo device_type_info = {
-    .name = TYPE_DEVICE,
-    .parent = TYPE_OBJECT,
-    .instance_size = sizeof(DeviceState),
-    .instance_init = device_initfn,
-    .instance_post_init = device_post_init,
-    .instance_finalize = device_finalize,
-    .class_base_init = device_class_base_init,
-    .class_init = device_class_init,
-    .abstract = true,
-    .class_size = sizeof(DeviceClass),
-};
-
-static void qbus_initfn(Object *obj)
-{
-    BusState *bus = BUS(obj);
-
-    QTAILQ_INIT(&bus->children);
-    object_property_add_link(obj, QDEV_HOTPLUG_HANDLER_PROPERTY,
-                             TYPE_HOTPLUG_HANDLER,
-                             (Object **)&bus->hotplug_handler,
-                             object_property_allow_set_link,
-                             OBJ_PROP_LINK_UNREF_ON_RELEASE,
-                             NULL);
-    object_property_add_bool(obj, "realized",
-                             bus_get_realized, bus_set_realized, NULL);
-}
-
-static char *default_bus_get_fw_dev_path(DeviceState *dev)
-{
-    return g_strdup(object_get_typename(OBJECT(dev)));
-}
-
-static void bus_class_init(ObjectClass *class, void *data)
-{
-    BusClass *bc = BUS_CLASS(class);
-
-    class->unparent = bus_unparent;
-    bc->get_fw_dev_path = default_bus_get_fw_dev_path;
-}
-
-static void qbus_finalize(Object *obj)
-{
-    BusState *bus = BUS(obj);
-
-    g_free((char *)bus->name);
-}
-
-static const TypeInfo bus_info = {
-    .name = TYPE_BUS,
-    .parent = TYPE_OBJECT,
-    .instance_size = sizeof(BusState),
-    .abstract = true,
-    .class_size = sizeof(BusClass),
-    .instance_init = qbus_initfn,
-    .instance_finalize = qbus_finalize,
-    .class_init = bus_class_init,
-};
-
-static void qdev_register_types(void)
-{
-    type_register_static(&bus_info);
-    type_register_static(&device_type_info);
-}
-
-type_init(qdev_register_types)