diff options
Diffstat (limited to 'hw/qdev.c')
| -rw-r--r-- | hw/qdev.c | 572 |
1 files changed, 1 insertions, 571 deletions
@@ -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); |