Patchwork [15/22] qdev: split out UI portions into a new function

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Submitter Anthony Liguori
Date Feb. 1, 2012, 7:50 p.m.
Message ID <1328125863-6203-16-git-send-email-aliguori@us.ibm.com>
Download mbox | patch
Permalink /patch/139003/
State New
Headers show

Comments

Anthony Liguori - Feb. 1, 2012, 7:50 p.m.
qdev-monitor.c deals with the -device, device_add, and info qdm/qtree
interfaces.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
 Makefile.objs     |    2 +-
 hw/qdev-monitor.c |  585 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 hw/qdev.c         |  572 +---------------------------------------------------
 hw/qdev.h         |    2 +
 4 files changed, 589 insertions(+), 572 deletions(-)
 create mode 100644 hw/qdev-monitor.c

Patch

diff --git a/Makefile.objs b/Makefile.objs
index b942625..1a26349 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -113,7 +113,7 @@  common-obj-y += bt-hci-csr.o
 common-obj-y += buffered_file.o migration.o migration-tcp.o
 common-obj-y += qemu-char.o #aio.o
 common-obj-y += msmouse.o ps2.o
-common-obj-y += qdev.o qdev-properties.o
+common-obj-y += qdev.o qdev-properties.o qdev-monitor.o
 common-obj-y += block-migration.o iohandler.o
 common-obj-y += pflib.o
 common-obj-y += bitmap.o bitops.o
diff --git a/hw/qdev-monitor.c b/hw/qdev-monitor.c
new file mode 100644
index 0000000..841e1ad
--- /dev/null
+++ b/hw/qdev-monitor.c
@@ -0,0 +1,585 @@ 
+/*
+ *  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/>.
+ */
+
+#include "qdev.h"
+#include "monitor.h"
+
+/*
+ * Aliases were a bad idea from the start.  Let's keep them
+ * from spreading further.
+ */
+typedef struct QDevAlias
+{
+    const char *typename;
+    const char *alias;
+} QDevAlias;
+
+static const QDevAlias qdev_alias_table[] = {
+    { "virtio-blk-pci", "virtio-blk" },
+    { "virtio-net-pci", "virtio-net" },
+    { "virtio-serial-pci", "virtio-serial" },
+    { "virtio-balloon-pci", "virtio-balloon" },
+    { "virtio-blk-s390", "virtio-blk" },
+    { "virtio-net-s390", "virtio-net" },
+    { "virtio-serial-s390", "virtio-serial" },
+    { "lsi53c895a", "lsi" },
+    { "ich9-ahci", "ahci" },
+    { }
+};
+
+static const char *qdev_class_get_alias(DeviceClass *dc)
+{
+    const char *typename = object_class_get_name(OBJECT_CLASS(dc));
+    int i;
+
+    for (i = 0; qdev_alias_table[i].typename; i++) {
+        if (strcmp(qdev_alias_table[i].typename, typename) == 0) {
+            return qdev_alias_table[i].alias;
+        }
+    }
+
+    return NULL;
+}
+
+static bool qdev_class_has_alias(DeviceClass *dc)
+{
+    return (qdev_class_get_alias(dc) != NULL);
+}
+
+static void qdev_print_devinfo(ObjectClass *klass, void *opaque)
+{
+    DeviceClass *dc;
+    bool *show_no_user = opaque;
+
+    dc = (DeviceClass *)object_class_dynamic_cast(klass, TYPE_DEVICE);
+
+    if (!dc || (show_no_user && !*show_no_user && dc->no_user)) {
+        return;
+    }
+
+    error_printf("name \"%s\"", object_class_get_name(klass));
+    if (dc->bus_info) {
+        error_printf(", bus %s", dc->bus_info->name);
+    }
+    if (qdev_class_has_alias(dc)) {
+        error_printf(", alias \"%s\"", qdev_class_get_alias(dc));
+    }
+    if (dc->desc) {
+        error_printf(", desc \"%s\"", dc->desc);
+    }
+    if (dc->no_user) {
+        error_printf(", no-user");
+    }
+    error_printf("\n");
+}
+
+static int set_property(const char *name, const char *value, void *opaque)
+{
+    DeviceState *dev = opaque;
+
+    if (strcmp(name, "driver") == 0)
+        return 0;
+    if (strcmp(name, "bus") == 0)
+        return 0;
+
+    if (qdev_prop_parse(dev, name, value) == -1) {
+        return -1;
+    }
+    return 0;
+}
+
+static const char *find_typename_by_alias(const char *alias)
+{
+    int i;
+
+    for (i = 0; qdev_alias_table[i].alias; i++) {
+        if (strcmp(qdev_alias_table[i].alias, alias) == 0) {
+            return qdev_alias_table[i].typename;
+        }
+    }
+
+    return NULL;
+}
+
+int qdev_device_help(QemuOpts *opts)
+{
+    const char *driver;
+    Property *prop;
+    ObjectClass *klass;
+    DeviceClass *info;
+
+    driver = qemu_opt_get(opts, "driver");
+    if (driver && !strcmp(driver, "?")) {
+        bool show_no_user = false;
+        object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false, &show_no_user);
+        return 1;
+    }
+
+    if (!driver || !qemu_opt_get(opts, "?")) {
+        return 0;
+    }
+
+    klass = object_class_by_name(driver);
+    if (!klass) {
+        const char *typename = find_typename_by_alias(driver);
+
+        if (typename) {
+            driver = typename;
+            klass = object_class_by_name(driver);
+        }
+    }
+
+    if (!klass) {
+        return 0;
+    }
+    info = DEVICE_CLASS(klass);
+
+    for (prop = info->props; prop && prop->name; prop++) {
+        /*
+         * TODO Properties without a parser are just for dirty hacks.
+         * qdev_prop_ptr is the only such PropertyInfo.  It's marked
+         * for removal.  This conditional should be removed along with
+         * it.
+         */
+        if (!prop->info->parse) {
+            continue;           /* no way to set it, don't show */
+        }
+        error_printf("%s.%s=%s\n", driver, prop->name,
+                     prop->info->legacy_name ?: prop->info->name);
+    }
+    for (prop = info->bus_info->props; prop && prop->name; prop++) {
+        if (!prop->info->parse) {
+            continue;           /* no way to set it, don't show */
+        }
+        error_printf("%s.%s=%s\n", driver, prop->name,
+                     prop->info->legacy_name ?: prop->info->name);
+    }
+    return 1;
+}
+
+static DeviceState *qdev_get_peripheral(void)
+{
+    static DeviceState *dev;
+
+    if (dev == NULL) {
+        dev = qdev_create(NULL, "container");
+        qdev_property_add_child(qdev_get_root(), "peripheral", dev, NULL);
+        qdev_init_nofail(dev);
+    }
+
+    return dev;
+}
+
+static DeviceState *qdev_get_peripheral_anon(void)
+{
+    static DeviceState *dev;
+
+    if (dev == NULL) {
+        dev = qdev_create(NULL, "container");
+        qdev_property_add_child(qdev_get_root(), "peripheral-anon", dev, NULL);
+        qdev_init_nofail(dev);
+    }
+
+    return dev;
+}
+
+static void qbus_list_bus(DeviceState *dev)
+{
+    BusState *child;
+    const char *sep = " ";
+
+    error_printf("child busses at \"%s\":",
+                 dev->id ? dev->id : object_get_typename(OBJECT(dev)));
+    QLIST_FOREACH(child, &dev->child_bus, sibling) {
+        error_printf("%s\"%s\"", sep, child->name);
+        sep = ", ";
+    }
+    error_printf("\n");
+}
+
+static void qbus_list_dev(BusState *bus)
+{
+    DeviceState *dev;
+    const char *sep = " ";
+
+    error_printf("devices at \"%s\":", bus->name);
+    QTAILQ_FOREACH(dev, &bus->children, sibling) {
+        error_printf("%s\"%s\"", sep, object_get_typename(OBJECT(dev)));
+        if (dev->id)
+            error_printf("/\"%s\"", dev->id);
+        sep = ", ";
+    }
+    error_printf("\n");
+}
+
+static BusState *qbus_find_bus(DeviceState *dev, char *elem)
+{
+    BusState *child;
+
+    QLIST_FOREACH(child, &dev->child_bus, sibling) {
+        if (strcmp(child->name, elem) == 0) {
+            return child;
+        }
+    }
+    return NULL;
+}
+
+static DeviceState *qbus_find_dev(BusState *bus, char *elem)
+{
+    DeviceState *dev;
+
+    /*
+     * try to match in order:
+     *   (1) instance id, if present
+     *   (2) driver name
+     *   (3) driver alias, if present
+     */
+    QTAILQ_FOREACH(dev, &bus->children, sibling) {
+        if (dev->id  &&  strcmp(dev->id, elem) == 0) {
+            return dev;
+        }
+    }
+    QTAILQ_FOREACH(dev, &bus->children, sibling) {
+        if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) {
+            return dev;
+        }
+    }
+    QTAILQ_FOREACH(dev, &bus->children, sibling) {
+        DeviceClass *dc = DEVICE_GET_CLASS(dev);
+
+        if (qdev_class_has_alias(dc) &&
+            strcmp(qdev_class_get_alias(dc), elem) == 0) {
+            return dev;
+        }
+    }
+    return NULL;
+}
+
+static BusState *qbus_find_recursive(BusState *bus, const char *name,
+                                     const BusInfo *info)
+{
+    DeviceState *dev;
+    BusState *child, *ret;
+    int match = 1;
+
+    if (name && (strcmp(bus->name, name) != 0)) {
+        match = 0;
+    }
+    if (info && (bus->info != info)) {
+        match = 0;
+    }
+    if (match) {
+        return bus;
+    }
+
+    QTAILQ_FOREACH(dev, &bus->children, sibling) {
+        QLIST_FOREACH(child, &dev->child_bus, sibling) {
+            ret = qbus_find_recursive(child, name, info);
+            if (ret) {
+                return ret;
+            }
+        }
+    }
+    return NULL;
+}
+
+static BusState *qbus_find(const char *path)
+{
+    DeviceState *dev;
+    BusState *bus;
+    char elem[128];
+    int pos, len;
+
+    /* find start element */
+    if (path[0] == '/') {
+        bus = sysbus_get_default();
+        pos = 0;
+    } else {
+        if (sscanf(path, "%127[^/]%n", elem, &len) != 1) {
+            assert(!path[0]);
+            elem[0] = len = 0;
+        }
+        bus = qbus_find_recursive(sysbus_get_default(), elem, NULL);
+        if (!bus) {
+            qerror_report(QERR_BUS_NOT_FOUND, elem);
+            return NULL;
+        }
+        pos = len;
+    }
+
+    for (;;) {
+        assert(path[pos] == '/' || !path[pos]);
+        while (path[pos] == '/') {
+            pos++;
+        }
+        if (path[pos] == '\0') {
+            return bus;
+        }
+
+        /* find device */
+        if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
+            assert(0);
+            elem[0] = len = 0;
+        }
+        pos += len;
+        dev = qbus_find_dev(bus, elem);
+        if (!dev) {
+            qerror_report(QERR_DEVICE_NOT_FOUND, elem);
+            if (!monitor_cur_is_qmp()) {
+                qbus_list_dev(bus);
+            }
+            return NULL;
+        }
+
+        assert(path[pos] == '/' || !path[pos]);
+        while (path[pos] == '/') {
+            pos++;
+        }
+        if (path[pos] == '\0') {
+            /* last specified element is a device.  If it has exactly
+             * one child bus accept it nevertheless */
+            switch (dev->num_child_bus) {
+            case 0:
+                qerror_report(QERR_DEVICE_NO_BUS, elem);
+                return NULL;
+            case 1:
+                return QLIST_FIRST(&dev->child_bus);
+            default:
+                qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem);
+                if (!monitor_cur_is_qmp()) {
+                    qbus_list_bus(dev);
+                }
+                return NULL;
+            }
+        }
+
+        /* find bus */
+        if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
+            assert(0);
+            elem[0] = len = 0;
+        }
+        pos += len;
+        bus = qbus_find_bus(dev, elem);
+        if (!bus) {
+            qerror_report(QERR_BUS_NOT_FOUND, elem);
+            if (!monitor_cur_is_qmp()) {
+                qbus_list_bus(dev);
+            }
+            return NULL;
+        }
+    }
+}
+
+DeviceState *qdev_device_add(QemuOpts *opts)
+{
+    ObjectClass *obj;
+    DeviceClass *k;
+    const char *driver, *path, *id;
+    DeviceState *qdev;
+    BusState *bus;
+
+    driver = qemu_opt_get(opts, "driver");
+    if (!driver) {
+        qerror_report(QERR_MISSING_PARAMETER, "driver");
+        return NULL;
+    }
+
+    /* find driver */
+    obj = object_class_by_name(driver);
+    if (!obj) {
+        const char *typename = find_typename_by_alias(driver);
+
+        if (typename) {
+            driver = typename;
+            obj = object_class_by_name(driver);
+        }
+    }
+
+    if (!obj) {
+        qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "device type");
+        return NULL;
+    }
+
+    k = DEVICE_CLASS(obj);
+
+    /* find bus */
+    path = qemu_opt_get(opts, "bus");
+    if (path != NULL) {
+        bus = qbus_find(path);
+        if (!bus) {
+            return NULL;
+        }
+        if (bus->info != k->bus_info) {
+            qerror_report(QERR_BAD_BUS_FOR_DEVICE,
+                           driver, bus->info->name);
+            return NULL;
+        }
+    } else {
+        bus = qbus_find_recursive(sysbus_get_default(), NULL, k->bus_info);
+        if (!bus) {
+            qerror_report(QERR_NO_BUS_FOR_DEVICE,
+                          driver, k->bus_info->name);
+            return NULL;
+        }
+    }
+    if (qdev_hotplug && !bus->allow_hotplug) {
+        qerror_report(QERR_BUS_NO_HOTPLUG, bus->name);
+        return NULL;
+    }
+
+    if (!bus) {
+        bus = sysbus_get_default();
+    }
+
+    /* create device, set properties */
+    qdev = DEVICE(object_new(driver));
+    qdev_set_parent_bus(qdev, bus);
+    qdev_prop_set_globals(qdev);
+
+    id = qemu_opts_id(opts);
+    if (id) {
+        qdev->id = id;
+        qdev_property_add_child(qdev_get_peripheral(), qdev->id, qdev, NULL);
+    } else {
+        static int anon_count;
+        gchar *name = g_strdup_printf("device[%d]", anon_count++);
+        qdev_property_add_child(qdev_get_peripheral_anon(), name,
+                                qdev, NULL);
+        g_free(name);
+    }        
+    if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) {
+        qdev_free(qdev);
+        return NULL;
+    }
+    if (qdev_init(qdev) < 0) {
+        qerror_report(QERR_DEVICE_INIT_FAILED, driver);
+        return NULL;
+    }
+    qdev->opts = opts;
+    return qdev;
+}
+
+
+#define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__)
+static void qbus_print(Monitor *mon, BusState *bus, int indent);
+
+static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props,
+                             const char *prefix, int indent)
+{
+    char buf[64];
+
+    if (!props)
+        return;
+    while (props->name) {
+        /*
+         * TODO Properties without a print method are just for dirty
+         * hacks.  qdev_prop_ptr is the only such PropertyInfo.  It's
+         * marked for removal.  The test props->info->print should be
+         * removed along with it.
+         */
+        if (props->info->print) {
+            props->info->print(dev, props, buf, sizeof(buf));
+            qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf);
+        }
+        props++;
+    }
+}
+
+static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
+{
+    BusState *child;
+    qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)),
+                dev->id ? dev->id : "");
+    indent += 2;
+    if (dev->num_gpio_in) {
+        qdev_printf("gpio-in %d\n", dev->num_gpio_in);
+    }
+    if (dev->num_gpio_out) {
+        qdev_printf("gpio-out %d\n", dev->num_gpio_out);
+    }
+    qdev_print_props(mon, dev, qdev_get_props(dev), "dev", indent);
+    qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent);
+    if (dev->parent_bus->info->print_dev)
+        dev->parent_bus->info->print_dev(mon, dev, indent);
+    QLIST_FOREACH(child, &dev->child_bus, sibling) {
+        qbus_print(mon, child, indent);
+    }
+}
+
+static void qbus_print(Monitor *mon, BusState *bus, int indent)
+{
+    struct DeviceState *dev;
+
+    qdev_printf("bus: %s\n", bus->name);
+    indent += 2;
+    qdev_printf("type %s\n", bus->info->name);
+    QTAILQ_FOREACH(dev, &bus->children, sibling) {
+        qdev_print(mon, dev, indent);
+    }
+}
+#undef qdev_printf
+
+void do_info_qtree(Monitor *mon)
+{
+    if (sysbus_get_default())
+        qbus_print(mon, sysbus_get_default(), 0);
+}
+
+void do_info_qdm(Monitor *mon)
+{
+    object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false, NULL);
+}
+
+int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
+{
+    QemuOpts *opts;
+
+    opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict);
+    if (!opts) {
+        return -1;
+    }
+    if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
+        qemu_opts_del(opts);
+        return 0;
+    }
+    if (!qdev_device_add(opts)) {
+        qemu_opts_del(opts);
+        return -1;
+    }
+    return 0;
+}
+
+int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
+{
+    const char *id = qdict_get_str(qdict, "id");
+    DeviceState *dev;
+
+    dev = qdev_find_recursive(sysbus_get_default(), id);
+    if (NULL == dev) {
+        qerror_report(QERR_DEVICE_NOT_FOUND, id);
+        return -1;
+    }
+    return qdev_unplug(dev);
+}
+
+void qdev_machine_init(void)
+{
+    qdev_get_peripheral_anon();
+    qdev_get_peripheral();
+}
diff --git a/hw/qdev.c b/hw/qdev.c
index e2263cb..e82165d 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -28,9 +28,8 @@ 
 #include "net.h"
 #include "qdev.h"
 #include "sysemu.h"
-#include "monitor.h"
 
-static int qdev_hotplug = 0;
+int qdev_hotplug = 0;
 static bool qdev_hot_added = false;
 static bool qdev_hot_removed = false;
 
@@ -38,10 +37,6 @@  static bool qdev_hot_removed = false;
 static BusState *main_system_bus;
 static void main_system_bus_create(void);
 
-static BusState *qbus_find_recursive(BusState *bus, const char *name,
-                                     const BusInfo *info);
-static BusState *qbus_find(const char *path);
-
 /* Register a new device type.  */
 const VMStateDescription *qdev_get_vmsd(DeviceState *dev)
 {
@@ -61,56 +56,12 @@  Property *qdev_get_props(DeviceState *dev)
     return dc->props;
 }
 
-/*
- * Aliases were a bad idea from the start.  Let's keep them
- * from spreading further.
- */
-typedef struct QDevAlias
-{
-    const char *typename;
-    const char *alias;
-} QDevAlias;
-
-static const QDevAlias qdev_alias_table[] = {
-    { "virtio-blk-pci", "virtio-blk" },
-    { "virtio-net-pci", "virtio-net" },
-    { "virtio-serial-pci", "virtio-serial" },
-    { "virtio-balloon-pci", "virtio-balloon" },
-    { "virtio-blk-s390", "virtio-blk" },
-    { "virtio-net-s390", "virtio-net" },
-    { "virtio-serial-s390", "virtio-serial" },
-    { "lsi53c895a", "lsi" },
-    { "ich9-ahci", "ahci" },
-    { }
-};
-
-static const char *qdev_class_get_alias(DeviceClass *dc)
-{
-    const char *typename = object_class_get_name(OBJECT_CLASS(dc));
-    int i;
-
-    for (i = 0; qdev_alias_table[i].typename; i++) {
-        if (strcmp(qdev_alias_table[i].typename, typename) == 0) {
-            return qdev_alias_table[i].alias;
-        }
-    }
-
-    return NULL;
-}
-
-static bool qdev_class_has_alias(DeviceClass *dc)
-{
-    return (qdev_class_get_alias(dc) != NULL);
-}
-
 const char *qdev_fw_name(DeviceState *dev)
 {
     DeviceClass *dc = DEVICE_GET_CLASS(dev);
 
     if (dc->fw_name) {
         return dc->fw_name;
-    } else if (qdev_class_has_alias(dc)) {
-        return qdev_class_get_alias(dc);
     }
 
     return object_get_typename(OBJECT(dev));
@@ -181,232 +132,6 @@  DeviceState *qdev_try_create(BusState *bus, const char *name)
     return dev;
 }
 
-static void qdev_print_devinfo(ObjectClass *klass, void *opaque)
-{
-    DeviceClass *dc;
-    bool *show_no_user = opaque;
-
-    dc = (DeviceClass *)object_class_dynamic_cast(klass, TYPE_DEVICE);
-
-    if (!dc || (show_no_user && !*show_no_user && dc->no_user)) {
-        return;
-    }
-
-    error_printf("name \"%s\"", object_class_get_name(klass));
-    if (dc->bus_info) {
-        error_printf(", bus %s", dc->bus_info->name);
-    }
-    if (qdev_class_has_alias(dc)) {
-        error_printf(", alias \"%s\"", qdev_class_get_alias(dc));
-    }
-    if (dc->desc) {
-        error_printf(", desc \"%s\"", dc->desc);
-    }
-    if (dc->no_user) {
-        error_printf(", no-user");
-    }
-    error_printf("\n");
-}
-
-static int set_property(const char *name, const char *value, void *opaque)
-{
-    DeviceState *dev = opaque;
-
-    if (strcmp(name, "driver") == 0)
-        return 0;
-    if (strcmp(name, "bus") == 0)
-        return 0;
-
-    if (qdev_prop_parse(dev, name, value) == -1) {
-        return -1;
-    }
-    return 0;
-}
-
-static const char *find_typename_by_alias(const char *alias)
-{
-    int i;
-
-    for (i = 0; qdev_alias_table[i].alias; i++) {
-        if (strcmp(qdev_alias_table[i].alias, alias) == 0) {
-            return qdev_alias_table[i].typename;
-        }
-    }
-
-    return NULL;
-}
-
-int qdev_device_help(QemuOpts *opts)
-{
-    const char *driver;
-    Property *prop;
-    ObjectClass *klass;
-    DeviceClass *info;
-
-    driver = qemu_opt_get(opts, "driver");
-    if (driver && !strcmp(driver, "?")) {
-        bool show_no_user = false;
-        object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false, &show_no_user);
-        return 1;
-    }
-
-    if (!driver || !qemu_opt_get(opts, "?")) {
-        return 0;
-    }
-
-    klass = object_class_by_name(driver);
-    if (!klass) {
-        const char *typename = find_typename_by_alias(driver);
-
-        if (typename) {
-            driver = typename;
-            klass = object_class_by_name(driver);
-        }
-    }
-
-    if (!klass) {
-        return 0;
-    }
-    info = DEVICE_CLASS(klass);
-
-    for (prop = info->props; prop && prop->name; prop++) {
-        /*
-         * TODO Properties without a parser are just for dirty hacks.
-         * qdev_prop_ptr is the only such PropertyInfo.  It's marked
-         * for removal.  This conditional should be removed along with
-         * it.
-         */
-        if (!prop->info->parse) {
-            continue;           /* no way to set it, don't show */
-        }
-        error_printf("%s.%s=%s\n", driver, prop->name,
-                     prop->info->legacy_name ?: prop->info->name);
-    }
-    for (prop = info->bus_info->props; prop && prop->name; prop++) {
-        if (!prop->info->parse) {
-            continue;           /* no way to set it, don't show */
-        }
-        error_printf("%s.%s=%s\n", driver, prop->name,
-                     prop->info->legacy_name ?: prop->info->name);
-    }
-    return 1;
-}
-
-static DeviceState *qdev_get_peripheral(void)
-{
-    static DeviceState *dev;
-
-    if (dev == NULL) {
-        dev = qdev_create(NULL, "container");
-        qdev_property_add_child(qdev_get_root(), "peripheral", dev, NULL);
-        qdev_init_nofail(dev);
-    }
-
-    return dev;
-}
-
-static DeviceState *qdev_get_peripheral_anon(void)
-{
-    static DeviceState *dev;
-
-    if (dev == NULL) {
-        dev = qdev_create(NULL, "container");
-        qdev_property_add_child(qdev_get_root(), "peripheral-anon", dev, NULL);
-        qdev_init_nofail(dev);
-    }
-
-    return dev;
-}
-
-DeviceState *qdev_device_add(QemuOpts *opts)
-{
-    ObjectClass *obj;
-    DeviceClass *k;
-    const char *driver, *path, *id;
-    DeviceState *qdev;
-    BusState *bus;
-
-    driver = qemu_opt_get(opts, "driver");
-    if (!driver) {
-        qerror_report(QERR_MISSING_PARAMETER, "driver");
-        return NULL;
-    }
-
-    /* find driver */
-    obj = object_class_by_name(driver);
-    if (!obj) {
-        const char *typename = find_typename_by_alias(driver);
-
-        if (typename) {
-            driver = typename;
-            obj = object_class_by_name(driver);
-        }
-    }
-
-    if (!obj) {
-        qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "device type");
-        return NULL;
-    }
-
-    k = DEVICE_CLASS(obj);
-
-    /* find bus */
-    path = qemu_opt_get(opts, "bus");
-    if (path != NULL) {
-        bus = qbus_find(path);
-        if (!bus) {
-            return NULL;
-        }
-        if (bus->info != k->bus_info) {
-            qerror_report(QERR_BAD_BUS_FOR_DEVICE,
-                           driver, bus->info->name);
-            return NULL;
-        }
-    } else {
-        bus = qbus_find_recursive(main_system_bus, NULL, k->bus_info);
-        if (!bus) {
-            qerror_report(QERR_NO_BUS_FOR_DEVICE,
-                          driver, k->bus_info->name);
-            return NULL;
-        }
-    }
-    if (qdev_hotplug && !bus->allow_hotplug) {
-        qerror_report(QERR_BUS_NO_HOTPLUG, bus->name);
-        return NULL;
-    }
-
-    if (!bus) {
-        bus = sysbus_get_default();
-    }
-
-    /* create device, set properties */
-    qdev = DEVICE(object_new(driver));
-    qdev_set_parent_bus(qdev, bus);
-    qdev_prop_set_globals(qdev);
-
-    id = qemu_opts_id(opts);
-    if (id) {
-        qdev->id = id;
-        qdev_property_add_child(qdev_get_peripheral(), qdev->id, qdev, NULL);
-    } else {
-        static int anon_count;
-        gchar *name = g_strdup_printf("device[%d]", anon_count++);
-        qdev_property_add_child(qdev_get_peripheral_anon(), name,
-                                qdev, NULL);
-        g_free(name);
-    }        
-    if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) {
-        qdev_free(qdev);
-        return NULL;
-    }
-    if (qdev_init(qdev) < 0) {
-        qerror_report(QERR_DEVICE_INIT_FAILED, driver);
-        return NULL;
-    }
-    qdev->opts = opts;
-    return qdev;
-}
-
 /* Initialize a device.  Device properties should be set before calling
    this function.  IRQs and MMIO regions should be connected/mapped after
    calling this function.
@@ -723,34 +448,6 @@  int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
     return 0;
 }
 
-static BusState *qbus_find_recursive(BusState *bus, const char *name,
-                                     const BusInfo *info)
-{
-    DeviceState *dev;
-    BusState *child, *ret;
-    int match = 1;
-
-    if (name && (strcmp(bus->name, name) != 0)) {
-        match = 0;
-    }
-    if (info && (bus->info != info)) {
-        match = 0;
-    }
-    if (match) {
-        return bus;
-    }
-
-    QTAILQ_FOREACH(dev, &bus->children, sibling) {
-        QLIST_FOREACH(child, &dev->child_bus, sibling) {
-            ret = qbus_find_recursive(child, name, info);
-            if (ret) {
-                return ret;
-            }
-        }
-    }
-    return NULL;
-}
-
 DeviceState *qdev_find_recursive(BusState *bus, const char *id)
 {
     DeviceState *dev, *ret;
@@ -769,165 +466,6 @@  DeviceState *qdev_find_recursive(BusState *bus, const char *id)
     return NULL;
 }
 
-static void qbus_list_bus(DeviceState *dev)
-{
-    BusState *child;
-    const char *sep = " ";
-
-    error_printf("child busses at \"%s\":",
-                 dev->id ? dev->id : object_get_typename(OBJECT(dev)));
-    QLIST_FOREACH(child, &dev->child_bus, sibling) {
-        error_printf("%s\"%s\"", sep, child->name);
-        sep = ", ";
-    }
-    error_printf("\n");
-}
-
-static void qbus_list_dev(BusState *bus)
-{
-    DeviceState *dev;
-    const char *sep = " ";
-
-    error_printf("devices at \"%s\":", bus->name);
-    QTAILQ_FOREACH(dev, &bus->children, sibling) {
-        error_printf("%s\"%s\"", sep, object_get_typename(OBJECT(dev)));
-        if (dev->id)
-            error_printf("/\"%s\"", dev->id);
-        sep = ", ";
-    }
-    error_printf("\n");
-}
-
-static BusState *qbus_find_bus(DeviceState *dev, char *elem)
-{
-    BusState *child;
-
-    QLIST_FOREACH(child, &dev->child_bus, sibling) {
-        if (strcmp(child->name, elem) == 0) {
-            return child;
-        }
-    }
-    return NULL;
-}
-
-static DeviceState *qbus_find_dev(BusState *bus, char *elem)
-{
-    DeviceState *dev;
-
-    /*
-     * try to match in order:
-     *   (1) instance id, if present
-     *   (2) driver name
-     *   (3) driver alias, if present
-     */
-    QTAILQ_FOREACH(dev, &bus->children, sibling) {
-        if (dev->id  &&  strcmp(dev->id, elem) == 0) {
-            return dev;
-        }
-    }
-    QTAILQ_FOREACH(dev, &bus->children, sibling) {
-        if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) {
-            return dev;
-        }
-    }
-    QTAILQ_FOREACH(dev, &bus->children, sibling) {
-        DeviceClass *dc = DEVICE_GET_CLASS(dev);
-
-        if (qdev_class_has_alias(dc) &&
-            strcmp(qdev_class_get_alias(dc), elem) == 0) {
-            return dev;
-        }
-    }
-    return NULL;
-}
-
-static BusState *qbus_find(const char *path)
-{
-    DeviceState *dev;
-    BusState *bus;
-    char elem[128];
-    int pos, len;
-
-    /* find start element */
-    if (path[0] == '/') {
-        bus = main_system_bus;
-        pos = 0;
-    } else {
-        if (sscanf(path, "%127[^/]%n", elem, &len) != 1) {
-            assert(!path[0]);
-            elem[0] = len = 0;
-        }
-        bus = qbus_find_recursive(main_system_bus, elem, NULL);
-        if (!bus) {
-            qerror_report(QERR_BUS_NOT_FOUND, elem);
-            return NULL;
-        }
-        pos = len;
-    }
-
-    for (;;) {
-        assert(path[pos] == '/' || !path[pos]);
-        while (path[pos] == '/') {
-            pos++;
-        }
-        if (path[pos] == '\0') {
-            return bus;
-        }
-
-        /* find device */
-        if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
-            assert(0);
-            elem[0] = len = 0;
-        }
-        pos += len;
-        dev = qbus_find_dev(bus, elem);
-        if (!dev) {
-            qerror_report(QERR_DEVICE_NOT_FOUND, elem);
-            if (!monitor_cur_is_qmp()) {
-                qbus_list_dev(bus);
-            }
-            return NULL;
-        }
-
-        assert(path[pos] == '/' || !path[pos]);
-        while (path[pos] == '/') {
-            pos++;
-        }
-        if (path[pos] == '\0') {
-            /* last specified element is a device.  If it has exactly
-             * one child bus accept it nevertheless */
-            switch (dev->num_child_bus) {
-            case 0:
-                qerror_report(QERR_DEVICE_NO_BUS, elem);
-                return NULL;
-            case 1:
-                return QLIST_FIRST(&dev->child_bus);
-            default:
-                qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem);
-                if (!monitor_cur_is_qmp()) {
-                    qbus_list_bus(dev);
-                }
-                return NULL;
-            }
-        }
-
-        /* find bus */
-        if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
-            assert(0);
-            elem[0] = len = 0;
-        }
-        pos += len;
-        bus = qbus_find_bus(dev, elem);
-        if (!bus) {
-            qerror_report(QERR_BUS_NOT_FOUND, elem);
-            if (!monitor_cur_is_qmp()) {
-                qbus_list_bus(dev);
-            }
-            return NULL;
-        }
-    }
-}
-
 void qbus_create_inplace(BusState *bus, BusInfo *info,
                          DeviceState *parent, const char *name)
 {
@@ -1008,108 +546,6 @@  void qbus_free(BusState *bus)
     }
 }
 
-#define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__)
-static void qbus_print(Monitor *mon, BusState *bus, int indent);
-
-static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props,
-                             const char *prefix, int indent)
-{
-    char buf[64];
-
-    if (!props)
-        return;
-    while (props->name) {
-        /*
-         * TODO Properties without a print method are just for dirty
-         * hacks.  qdev_prop_ptr is the only such PropertyInfo.  It's
-         * marked for removal.  The test props->info->print should be
-         * removed along with it.
-         */
-        if (props->info->print) {
-            props->info->print(dev, props, buf, sizeof(buf));
-            qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf);
-        }
-        props++;
-    }
-}
-
-static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
-{
-    BusState *child;
-    qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)),
-                dev->id ? dev->id : "");
-    indent += 2;
-    if (dev->num_gpio_in) {
-        qdev_printf("gpio-in %d\n", dev->num_gpio_in);
-    }
-    if (dev->num_gpio_out) {
-        qdev_printf("gpio-out %d\n", dev->num_gpio_out);
-    }
-    qdev_print_props(mon, dev, qdev_get_props(dev), "dev", indent);
-    qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent);
-    if (dev->parent_bus->info->print_dev)
-        dev->parent_bus->info->print_dev(mon, dev, indent);
-    QLIST_FOREACH(child, &dev->child_bus, sibling) {
-        qbus_print(mon, child, indent);
-    }
-}
-
-static void qbus_print(Monitor *mon, BusState *bus, int indent)
-{
-    struct DeviceState *dev;
-
-    qdev_printf("bus: %s\n", bus->name);
-    indent += 2;
-    qdev_printf("type %s\n", bus->info->name);
-    QTAILQ_FOREACH(dev, &bus->children, sibling) {
-        qdev_print(mon, dev, indent);
-    }
-}
-#undef qdev_printf
-
-void do_info_qtree(Monitor *mon)
-{
-    if (main_system_bus)
-        qbus_print(mon, main_system_bus, 0);
-}
-
-void do_info_qdm(Monitor *mon)
-{
-    object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false, NULL);
-}
-
-int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
-{
-    QemuOpts *opts;
-
-    opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict);
-    if (!opts) {
-        return -1;
-    }
-    if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
-        qemu_opts_del(opts);
-        return 0;
-    }
-    if (!qdev_device_add(opts)) {
-        qemu_opts_del(opts);
-        return -1;
-    }
-    return 0;
-}
-
-int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
-{
-    const char *id = qdict_get_str(qdict, "id");
-    DeviceState *dev;
-
-    dev = qdev_find_recursive(main_system_bus, id);
-    if (NULL == dev) {
-        qerror_report(QERR_DEVICE_NOT_FOUND, id);
-        return -1;
-    }
-    return qdev_unplug(dev);
-}
-
 static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size)
 {
     int l = 0;
@@ -1641,12 +1077,6 @@  void qdev_property_add_str(DeviceState *dev, const char *name,
                       prop, errp);
 }
 
-void qdev_machine_init(void)
-{
-    qdev_get_peripheral_anon();
-    qdev_get_peripheral();
-}
-
 static void device_initfn(Object *obj)
 {
     DeviceState *dev = DEVICE(obj);
diff --git a/hw/qdev.h b/hw/qdev.h
index e611804..9535e57 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -639,4 +639,6 @@  Property *qdev_get_props(DeviceState *dev);
 /* FIXME: make this a link<> */
 void qdev_set_parent_bus(DeviceState *dev, BusState *bus);
 
+extern int qdev_hotplug;
+
 #endif