diff options
Diffstat (limited to 'softmmu/qdev-monitor.c')
| -rw-r--r-- | softmmu/qdev-monitor.c | 1050 |
1 files changed, 1050 insertions, 0 deletions
diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c new file mode 100644 index 000000000..01f3834db --- /dev/null +++ b/softmmu/qdev-monitor.c @@ -0,0 +1,1050 @@ +/* + * 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 2.1 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 "qemu/osdep.h" +#include "hw/sysbus.h" +#include "monitor/hmp.h" +#include "monitor/monitor.h" +#include "monitor/qdev.h" +#include "sysemu/arch_init.h" +#include "qapi/error.h" +#include "qapi/qapi-commands-qdev.h" +#include "qapi/qmp/dispatch.h" +#include "qapi/qmp/qdict.h" +#include "qapi/qmp/qerror.h" +#include "qapi/qmp/qstring.h" +#include "qapi/qobject-input-visitor.h" +#include "qemu/config-file.h" +#include "qemu/error-report.h" +#include "qemu/help_option.h" +#include "qemu/option.h" +#include "qemu/qemu-print.h" +#include "qemu/option_int.h" +#include "sysemu/block-backend.h" +#include "migration/misc.h" +#include "migration/migration.h" +#include "qemu/cutils.h" +#include "hw/qdev-properties.h" +#include "hw/clock.h" +#include "hw/boards.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; + uint32_t arch_mask; +} QDevAlias; + +/* default virtio transport per architecture */ +#define QEMU_ARCH_VIRTIO_PCI (QEMU_ARCH_ALPHA | QEMU_ARCH_ARM | \ + QEMU_ARCH_HPPA | QEMU_ARCH_I386 | \ + QEMU_ARCH_MIPS | QEMU_ARCH_PPC | \ + QEMU_ARCH_RISCV | QEMU_ARCH_SH4 | \ + QEMU_ARCH_SPARC | QEMU_ARCH_XTENSA) +#define QEMU_ARCH_VIRTIO_CCW (QEMU_ARCH_S390X) +#define QEMU_ARCH_VIRTIO_MMIO (QEMU_ARCH_M68K) + +/* Please keep this table sorted by typename. */ +static const QDevAlias qdev_alias_table[] = { + { "AC97", "ac97" }, /* -soundhw name */ + { "e1000", "e1000-82540em" }, + { "ES1370", "es1370" }, /* -soundhw name */ + { "ich9-ahci", "ahci" }, + { "lsi53c895a", "lsi" }, + { "virtio-9p-device", "virtio-9p", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-9p-ccw", "virtio-9p", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-9p-pci", "virtio-9p", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-balloon-device", "virtio-balloon", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-balloon-ccw", "virtio-balloon", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-balloon-pci", "virtio-balloon", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-blk-device", "virtio-blk", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-blk-ccw", "virtio-blk", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-blk-pci", "virtio-blk", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-gpu-device", "virtio-gpu", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-gpu-ccw", "virtio-gpu", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-gpu-pci", "virtio-gpu", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-input-host-device", "virtio-input-host", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-input-host-ccw", "virtio-input-host", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-input-host-pci", "virtio-input-host", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-iommu-pci", "virtio-iommu", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-keyboard-device", "virtio-keyboard", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-keyboard-ccw", "virtio-keyboard", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-keyboard-pci", "virtio-keyboard", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-mouse-device", "virtio-mouse", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-mouse-ccw", "virtio-mouse", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-mouse-pci", "virtio-mouse", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-net-device", "virtio-net", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-net-ccw", "virtio-net", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-net-pci", "virtio-net", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-rng-device", "virtio-rng", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-rng-ccw", "virtio-rng", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-rng-pci", "virtio-rng", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-scsi-device", "virtio-scsi", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-scsi-ccw", "virtio-scsi", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-scsi-pci", "virtio-scsi", QEMU_ARCH_VIRTIO_PCI }, + { "virtio-serial-device", "virtio-serial", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-serial-ccw", "virtio-serial", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_VIRTIO_PCI}, + { "virtio-tablet-device", "virtio-tablet", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-tablet-ccw", "virtio-tablet", QEMU_ARCH_VIRTIO_CCW }, + { "virtio-tablet-pci", "virtio-tablet", QEMU_ARCH_VIRTIO_PCI }, + { } +}; + +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 (qdev_alias_table[i].arch_mask && + !(qdev_alias_table[i].arch_mask & arch_type)) { + continue; + } + + 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(DeviceClass *dc) +{ + qemu_printf("name \"%s\"", object_class_get_name(OBJECT_CLASS(dc))); + if (dc->bus_type) { + qemu_printf(", bus %s", dc->bus_type); + } + if (qdev_class_has_alias(dc)) { + qemu_printf(", alias \"%s\"", qdev_class_get_alias(dc)); + } + if (dc->desc) { + qemu_printf(", desc \"%s\"", dc->desc); + } + if (!dc->user_creatable) { + qemu_printf(", no-user"); + } + qemu_printf("\n"); +} + +static void qdev_print_devinfos(bool show_no_user) +{ + static const char *cat_name[DEVICE_CATEGORY_MAX + 1] = { + [DEVICE_CATEGORY_BRIDGE] = "Controller/Bridge/Hub", + [DEVICE_CATEGORY_USB] = "USB", + [DEVICE_CATEGORY_STORAGE] = "Storage", + [DEVICE_CATEGORY_NETWORK] = "Network", + [DEVICE_CATEGORY_INPUT] = "Input", + [DEVICE_CATEGORY_DISPLAY] = "Display", + [DEVICE_CATEGORY_SOUND] = "Sound", + [DEVICE_CATEGORY_MISC] = "Misc", + [DEVICE_CATEGORY_CPU] = "CPU", + [DEVICE_CATEGORY_WATCHDOG]= "Watchdog", + [DEVICE_CATEGORY_MAX] = "Uncategorized", + }; + GSList *list, *elt; + int i; + bool cat_printed; + + module_load_qom_all(); + list = object_class_get_list_sorted(TYPE_DEVICE, false); + + for (i = 0; i <= DEVICE_CATEGORY_MAX; i++) { + cat_printed = false; + for (elt = list; elt; elt = elt->next) { + DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data, + TYPE_DEVICE); + if ((i < DEVICE_CATEGORY_MAX + ? !test_bit(i, dc->categories) + : !bitmap_empty(dc->categories, DEVICE_CATEGORY_MAX)) + || (!show_no_user + && !dc->user_creatable)) { + continue; + } + if (!cat_printed) { + qemu_printf("%s%s devices:\n", i ? "\n" : "", cat_name[i]); + cat_printed = true; + } + qdev_print_devinfo(dc); + } + } + + g_slist_free(list); +} + +static const char *find_typename_by_alias(const char *alias) +{ + int i; + + for (i = 0; qdev_alias_table[i].alias; i++) { + if (qdev_alias_table[i].arch_mask && + !(qdev_alias_table[i].arch_mask & arch_type)) { + continue; + } + + if (strcmp(qdev_alias_table[i].alias, alias) == 0) { + return qdev_alias_table[i].typename; + } + } + + return NULL; +} + +static DeviceClass *qdev_get_device_class(const char **driver, Error **errp) +{ + ObjectClass *oc; + DeviceClass *dc; + const char *original_name = *driver; + + oc = module_object_class_by_name(*driver); + if (!oc) { + const char *typename = find_typename_by_alias(*driver); + + if (typename) { + *driver = typename; + oc = module_object_class_by_name(*driver); + } + } + + if (!object_class_dynamic_cast(oc, TYPE_DEVICE)) { + if (*driver != original_name) { + error_setg(errp, "'%s' (alias '%s') is not a valid device model" + " name", original_name, *driver); + } else { + error_setg(errp, "'%s' is not a valid device model name", *driver); + } + return NULL; + } + + if (object_class_is_abstract(oc)) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver", + "a non-abstract device type"); + return NULL; + } + + dc = DEVICE_CLASS(oc); + if (!dc->user_creatable || + (phase_check(PHASE_MACHINE_READY) && !dc->hotpluggable)) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver", + "a pluggable device type"); + return NULL; + } + + if (object_class_dynamic_cast(oc, TYPE_SYS_BUS_DEVICE)) { + /* sysbus devices need to be allowed by the machine */ + MachineClass *mc = MACHINE_CLASS(object_get_class(qdev_get_machine())); + if (!device_type_is_dynamic_sysbus(mc, *driver)) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver", + "a dynamic sysbus device type for the machine"); + return NULL; + } + } + + return dc; +} + + +int qdev_device_help(QemuOpts *opts) +{ + Error *local_err = NULL; + const char *driver; + ObjectPropertyInfoList *prop_list; + ObjectPropertyInfoList *prop; + GPtrArray *array; + int i; + + driver = qemu_opt_get(opts, "driver"); + if (driver && is_help_option(driver)) { + qdev_print_devinfos(false); + return 1; + } + + if (!driver || !qemu_opt_has_help_opt(opts)) { + return 0; + } + + if (!object_class_by_name(driver)) { + const char *typename = find_typename_by_alias(driver); + + if (typename) { + driver = typename; + } + } + + prop_list = qmp_device_list_properties(driver, &local_err); + if (local_err) { + goto error; + } + + if (prop_list) { + qemu_printf("%s options:\n", driver); + } else { + qemu_printf("There are no options for %s.\n", driver); + } + array = g_ptr_array_new(); + for (prop = prop_list; prop; prop = prop->next) { + g_ptr_array_add(array, + object_property_help(prop->value->name, + prop->value->type, + prop->value->default_value, + prop->value->description)); + } + g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0); + for (i = 0; i < array->len; i++) { + qemu_printf("%s\n", (char *)array->pdata[i]); + } + g_ptr_array_set_free_func(array, g_free); + g_ptr_array_free(array, true); + qapi_free_ObjectPropertyInfoList(prop_list); + return 1; + +error: + error_report_err(local_err); + return 1; +} + +static Object *qdev_get_peripheral(void) +{ + static Object *dev; + + if (dev == NULL) { + dev = container_get(qdev_get_machine(), "/peripheral"); + } + + return dev; +} + +static Object *qdev_get_peripheral_anon(void) +{ + static Object *dev; + + if (dev == NULL) { + dev = container_get(qdev_get_machine(), "/peripheral-anon"); + } + + return dev; +} + +static void qbus_error_append_bus_list_hint(DeviceState *dev, + Error *const *errp) +{ + BusState *child; + const char *sep = " "; + + error_append_hint(errp, "child buses at \"%s\":", + dev->id ? dev->id : object_get_typename(OBJECT(dev))); + QLIST_FOREACH(child, &dev->child_bus, sibling) { + error_append_hint(errp, "%s\"%s\"", sep, child->name); + sep = ", "; + } + error_append_hint(errp, "\n"); +} + +static void qbus_error_append_dev_list_hint(BusState *bus, + Error *const *errp) +{ + BusChild *kid; + const char *sep = " "; + + error_append_hint(errp, "devices at \"%s\":", bus->name); + QTAILQ_FOREACH(kid, &bus->children, sibling) { + DeviceState *dev = kid->child; + error_append_hint(errp, "%s\"%s\"", sep, + object_get_typename(OBJECT(dev))); + if (dev->id) { + error_append_hint(errp, "/\"%s\"", dev->id); + } + sep = ", "; + } + error_append_hint(errp, "\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) +{ + BusChild *kid; + + /* + * try to match in order: + * (1) instance id, if present + * (2) driver name + * (3) driver alias, if present + */ + QTAILQ_FOREACH(kid, &bus->children, sibling) { + DeviceState *dev = kid->child; + if (dev->id && strcmp(dev->id, elem) == 0) { + return dev; + } + } + QTAILQ_FOREACH(kid, &bus->children, sibling) { + DeviceState *dev = kid->child; + if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) { + return dev; + } + } + QTAILQ_FOREACH(kid, &bus->children, sibling) { + DeviceState *dev = kid->child; + 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 inline bool qbus_is_full(BusState *bus) +{ + BusClass *bus_class; + + if (bus->full) { + return true; + } + bus_class = BUS_GET_CLASS(bus); + return bus_class->max_dev && bus->num_children >= bus_class->max_dev; +} + +/* + * Search the tree rooted at @bus for a bus. + * If @name, search for a bus with that name. Note that bus names + * need not be unique. Yes, that's screwed up. + * Else search for a bus that is a subtype of @bus_typename. + * If more than one exists, prefer one that can take another device. + * Return the bus if found, else %NULL. + */ +static BusState *qbus_find_recursive(BusState *bus, const char *name, + const char *bus_typename) +{ + BusChild *kid; + BusState *pick, *child, *ret; + bool match; + + assert(name || bus_typename); + if (name) { + match = !strcmp(bus->name, name); + } else { + match = !!object_dynamic_cast(OBJECT(bus), bus_typename); + } + + if (match && !qbus_is_full(bus)) { + return bus; /* root matches and isn't full */ + } + + pick = match ? bus : NULL; + + QTAILQ_FOREACH(kid, &bus->children, sibling) { + DeviceState *dev = kid->child; + QLIST_FOREACH(child, &dev->child_bus, sibling) { + ret = qbus_find_recursive(child, name, bus_typename); + if (ret && !qbus_is_full(ret)) { + return ret; /* a descendant matches and isn't full */ + } + if (ret && !pick) { + pick = ret; + } + } + } + + /* root or a descendant matches, but is full */ + return pick; +} + +static BusState *qbus_find(const char *path, Error **errp) +{ + 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) { + error_setg(errp, "Bus '%s' not found", elem); + return NULL; + } + pos = len; + } + + for (;;) { + assert(path[pos] == '/' || !path[pos]); + while (path[pos] == '/') { + pos++; + } + if (path[pos] == '\0') { + break; + } + + /* find device */ + if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { + g_assert_not_reached(); + elem[0] = len = 0; + } + pos += len; + dev = qbus_find_dev(bus, elem); + if (!dev) { + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, + "Device '%s' not found", elem); + qbus_error_append_dev_list_hint(bus, errp); + 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 */ + if (dev->num_child_bus == 1) { + bus = QLIST_FIRST(&dev->child_bus); + break; + } + if (dev->num_child_bus) { + error_setg(errp, "Device '%s' has multiple child buses", + elem); + qbus_error_append_bus_list_hint(dev, errp); + } else { + error_setg(errp, "Device '%s' has no child bus", elem); + } + return NULL; + } + + /* find bus */ + if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { + g_assert_not_reached(); + elem[0] = len = 0; + } + pos += len; + bus = qbus_find_bus(dev, elem); + if (!bus) { + error_setg(errp, "Bus '%s' not found", elem); + qbus_error_append_bus_list_hint(dev, errp); + return NULL; + } + } + + if (qbus_is_full(bus)) { + error_setg(errp, "Bus '%s' is full", path); + return NULL; + } + return bus; +} + +/* Takes ownership of @id, will be freed when deleting the device */ +const char *qdev_set_id(DeviceState *dev, char *id, Error **errp) +{ + ObjectProperty *prop; + + assert(!dev->id && !dev->realized); + + /* + * object_property_[try_]add_child() below will assert the device + * has no parent + */ + if (id) { + prop = object_property_try_add_child(qdev_get_peripheral(), id, + OBJECT(dev), NULL); + if (prop) { + dev->id = id; + } else { + error_setg(errp, "Duplicate device ID '%s'", id); + g_free(id); + return NULL; + } + } else { + static int anon_count; + gchar *name = g_strdup_printf("device[%d]", anon_count++); + prop = object_property_add_child(qdev_get_peripheral_anon(), name, + OBJECT(dev)); + g_free(name); + } + + return prop->name; +} + +DeviceState *qdev_device_add_from_qdict(const QDict *opts, + bool from_json, Error **errp) +{ + ERRP_GUARD(); + DeviceClass *dc; + const char *driver, *path; + char *id; + DeviceState *dev = NULL; + BusState *bus = NULL; + + driver = qdict_get_try_str(opts, "driver"); + if (!driver) { + error_setg(errp, QERR_MISSING_PARAMETER, "driver"); + return NULL; + } + + /* find driver */ + dc = qdev_get_device_class(&driver, errp); + if (!dc) { + return NULL; + } + + /* find bus */ + path = qdict_get_try_str(opts, "bus"); + if (path != NULL) { + bus = qbus_find(path, errp); + if (!bus) { + return NULL; + } + if (!object_dynamic_cast(OBJECT(bus), dc->bus_type)) { + error_setg(errp, "Device '%s' can't go on %s bus", + driver, object_get_typename(OBJECT(bus))); + return NULL; + } + } else if (dc->bus_type != NULL) { + bus = qbus_find_recursive(sysbus_get_default(), NULL, dc->bus_type); + if (!bus || qbus_is_full(bus)) { + error_setg(errp, "No '%s' bus found for device '%s'", + dc->bus_type, driver); + return NULL; + } + } + + if (qdev_should_hide_device(opts, from_json, errp)) { + if (bus && !qbus_is_hotpluggable(bus)) { + error_setg(errp, QERR_BUS_NO_HOTPLUG, bus->name); + } + return NULL; + } else if (*errp) { + return NULL; + } + + if (phase_check(PHASE_MACHINE_READY) && bus && !qbus_is_hotpluggable(bus)) { + error_setg(errp, QERR_BUS_NO_HOTPLUG, bus->name); + return NULL; + } + + if (!migration_is_idle()) { + error_setg(errp, "device_add not allowed while migrating"); + return NULL; + } + + /* create device */ + dev = qdev_new(driver); + + /* Check whether the hotplug is allowed by the machine */ + if (phase_check(PHASE_MACHINE_READY)) { + if (!qdev_hotplug_allowed(dev, errp)) { + goto err_del_dev; + } + + if (!bus && !qdev_get_machine_hotplug_handler(dev)) { + /* No bus, no machine hotplug handler --> device is not hotpluggable */ + error_setg(errp, "Device '%s' can not be hotplugged on this machine", + driver); + goto err_del_dev; + } + } + + /* + * set dev's parent and register its id. + * If it fails it means the id is already taken. + */ + id = g_strdup(qdict_get_try_str(opts, "id")); + if (!qdev_set_id(dev, id, errp)) { + goto err_del_dev; + } + + /* set properties */ + dev->opts = qdict_clone_shallow(opts); + qdict_del(dev->opts, "driver"); + qdict_del(dev->opts, "bus"); + qdict_del(dev->opts, "id"); + + object_set_properties_from_keyval(&dev->parent_obj, dev->opts, from_json, + errp); + if (*errp) { + goto err_del_dev; + } + + if (!qdev_realize(DEVICE(dev), bus, errp)) { + goto err_del_dev; + } + return dev; + +err_del_dev: + if (dev) { + object_unparent(OBJECT(dev)); + object_unref(OBJECT(dev)); + } + return NULL; +} + +/* Takes ownership of @opts on success */ +DeviceState *qdev_device_add(QemuOpts *opts, Error **errp) +{ + QDict *qdict = qemu_opts_to_qdict(opts, NULL); + DeviceState *ret; + + ret = qdev_device_add_from_qdict(qdict, false, errp); + if (ret) { + qemu_opts_del(opts); + } + qobject_unref(qdict); + return ret; +} + +#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, + int indent) +{ + if (!props) + return; + for (; props->name; props++) { + char *value; + char *legacy_name = g_strdup_printf("legacy-%s", props->name); + + if (object_property_get_type(OBJECT(dev), legacy_name, NULL)) { + value = object_property_get_str(OBJECT(dev), legacy_name, NULL); + } else { + value = object_property_print(OBJECT(dev), props->name, true, + NULL); + } + g_free(legacy_name); + + if (!value) { + continue; + } + qdev_printf("%s = %s\n", props->name, + *value ? value : "<null>"); + g_free(value); + } +} + +static void bus_print_dev(BusState *bus, Monitor *mon, DeviceState *dev, int indent) +{ + BusClass *bc = BUS_GET_CLASS(bus); + + if (bc->print_dev) { + bc->print_dev(mon, dev, indent); + } +} + +static void qdev_print(Monitor *mon, DeviceState *dev, int indent) +{ + ObjectClass *class; + BusState *child; + NamedGPIOList *ngl; + NamedClockList *ncl; + + qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)), + dev->id ? dev->id : ""); + indent += 2; + QLIST_FOREACH(ngl, &dev->gpios, node) { + if (ngl->num_in) { + qdev_printf("gpio-in \"%s\" %d\n", ngl->name ? ngl->name : "", + ngl->num_in); + } + if (ngl->num_out) { + qdev_printf("gpio-out \"%s\" %d\n", ngl->name ? ngl->name : "", + ngl->num_out); + } + } + QLIST_FOREACH(ncl, &dev->clocks, node) { + g_autofree char *freq_str = clock_display_freq(ncl->clock); + qdev_printf("clock-%s%s \"%s\" freq_hz=%s\n", + ncl->output ? "out" : "in", + ncl->alias ? " (alias)" : "", + ncl->name, freq_str); + } + class = object_get_class(OBJECT(dev)); + do { + qdev_print_props(mon, dev, DEVICE_CLASS(class)->props_, indent); + class = object_class_get_parent(class); + } while (class != object_class_by_name(TYPE_DEVICE)); + bus_print_dev(dev->parent_bus, 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) +{ + BusChild *kid; + + qdev_printf("bus: %s\n", bus->name); + indent += 2; + qdev_printf("type %s\n", object_get_typename(OBJECT(bus))); + QTAILQ_FOREACH(kid, &bus->children, sibling) { + DeviceState *dev = kid->child; + qdev_print(mon, dev, indent); + } +} +#undef qdev_printf + +void hmp_info_qtree(Monitor *mon, const QDict *qdict) +{ + if (sysbus_get_default()) + qbus_print(mon, sysbus_get_default(), 0); +} + +void hmp_info_qdm(Monitor *mon, const QDict *qdict) +{ + qdev_print_devinfos(true); +} + +void qmp_device_add(QDict *qdict, QObject **ret_data, Error **errp) +{ + QemuOpts *opts; + DeviceState *dev; + + opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, errp); + if (!opts) { + return; + } + if (!monitor_cur_is_qmp() && qdev_device_help(opts)) { + qemu_opts_del(opts); + return; + } + dev = qdev_device_add(opts, errp); + + /* + * Drain all pending RCU callbacks. This is done because + * some bus related operations can delay a device removal + * (in this case this can happen if device is added and then + * removed due to a configuration error) + * to a RCU callback, but user might expect that this interface + * will finish its job completely once qmp command returns result + * to the user + */ + drain_call_rcu(); + + if (!dev) { + qemu_opts_del(opts); + return; + } + object_unref(OBJECT(dev)); +} + +static DeviceState *find_device_state(const char *id, Error **errp) +{ + Object *obj = object_resolve_path_at(qdev_get_peripheral(), id); + DeviceState *dev; + + if (!obj) { + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, + "Device '%s' not found", id); + return NULL; + } + + dev = (DeviceState *)object_dynamic_cast(obj, TYPE_DEVICE); + if (!dev) { + error_setg(errp, "%s is not a hotpluggable device", id); + return NULL; + } + + return dev; +} + +void qdev_unplug(DeviceState *dev, Error **errp) +{ + DeviceClass *dc = DEVICE_GET_CLASS(dev); + HotplugHandler *hotplug_ctrl; + HotplugHandlerClass *hdc; + Error *local_err = NULL; + + 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; + } + + if (!migration_is_idle() && !dev->allow_unplug_during_migration) { + error_setg(errp, "device_del not allowed while migrating"); + 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, &local_err); + } else { + hotplug_handler_unplug(hotplug_ctrl, dev, &local_err); + if (!local_err) { + object_unparent(OBJECT(dev)); + } + } + error_propagate(errp, local_err); +} + +void qmp_device_del(const char *id, Error **errp) +{ + DeviceState *dev = find_device_state(id, errp); + if (dev != NULL) { + if (dev->pending_deleted_event && + (dev->pending_deleted_expires_ms == 0 || + dev->pending_deleted_expires_ms > qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL))) { + error_setg(errp, "Device %s is already in the " + "process of unplug", id); + return; + } + + qdev_unplug(dev, errp); + } +} + +void hmp_device_add(Monitor *mon, const QDict *qdict) +{ + Error *err = NULL; + + qmp_device_add((QDict *)qdict, NULL, &err); + hmp_handle_error(mon, err); +} + +void hmp_device_del(Monitor *mon, const QDict *qdict) +{ + const char *id = qdict_get_str(qdict, "id"); + Error *err = NULL; + + qmp_device_del(id, &err); + hmp_handle_error(mon, err); +} + +BlockBackend *blk_by_qdev_id(const char *id, Error **errp) +{ + DeviceState *dev; + BlockBackend *blk; + + dev = find_device_state(id, errp); + if (dev == NULL) { + return NULL; + } + + blk = blk_by_dev(dev); + if (!blk) { + error_setg(errp, "Device does not have a block device backend"); + } + return blk; +} + +QemuOptsList qemu_device_opts = { + .name = "device", + .implied_opt_name = "driver", + .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head), + .desc = { + /* + * no elements => accept any + * sanity checking will happen later + * when setting device properties + */ + { /* end of list */ } + }, +}; + +QemuOptsList qemu_global_opts = { + .name = "global", + .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head), + .desc = { + { + .name = "driver", + .type = QEMU_OPT_STRING, + },{ + .name = "property", + .type = QEMU_OPT_STRING, + },{ + .name = "value", + .type = QEMU_OPT_STRING, + }, + { /* end of list */ } + }, +}; + +int qemu_global_option(const char *str) +{ + char driver[64], property[64]; + QemuOpts *opts; + int rc, offset; + + rc = sscanf(str, "%63[^.=].%63[^=]%n", driver, property, &offset); + if (rc == 2 && str[offset] == '=') { + opts = qemu_opts_create(&qemu_global_opts, NULL, 0, &error_abort); + qemu_opt_set(opts, "driver", driver, &error_abort); + qemu_opt_set(opts, "property", property, &error_abort); + qemu_opt_set(opts, "value", str + offset + 1, &error_abort); + return 0; + } + + opts = qemu_opts_parse_noisily(&qemu_global_opts, str, false); + if (!opts) { + return -1; + } + + return 0; +} + +bool qmp_command_available(const QmpCommand *cmd, Error **errp) +{ + if (!phase_check(PHASE_MACHINE_READY) && + !(cmd->options & QCO_ALLOW_PRECONFIG)) { + error_setg(errp, "The command '%s' is permitted only after machine initialization has completed", + cmd->name); + return false; + } + return true; +} |