diff options
Diffstat (limited to 'monitor/qmp-cmds.c')
| -rw-r--r-- | monitor/qmp-cmds.c | 723 |
1 files changed, 723 insertions, 0 deletions
diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c new file mode 100644 index 0000000000..f1b1e4f08b --- /dev/null +++ b/monitor/qmp-cmds.c @@ -0,0 +1,723 @@ +/* + * QEMU Management Protocol commands + * + * Copyright IBM, Corp. 2011 + * + * Authors: + * Anthony Liguori <aliguori@us.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + * Contributions after 2012-01-13 are licensed under the terms of the + * GNU GPL, version 2 or (at your option) any later version. + */ + +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "qemu-version.h" +#include "qemu/cutils.h" +#include "qemu/option.h" +#include "monitor/monitor.h" +#include "sysemu/sysemu.h" +#include "qemu/config-file.h" +#include "qemu/uuid.h" +#include "chardev/char.h" +#include "ui/qemu-spice.h" +#include "ui/vnc.h" +#include "sysemu/kvm.h" +#include "sysemu/arch_init.h" +#include "hw/qdev.h" +#include "sysemu/blockdev.h" +#include "sysemu/block-backend.h" +#include "qom/qom-qobject.h" +#include "qapi/error.h" +#include "qapi/qapi-commands-block-core.h" +#include "qapi/qapi-commands-misc.h" +#include "qapi/qapi-commands-ui.h" +#include "qapi/qmp/qdict.h" +#include "qapi/qmp/qerror.h" +#include "qapi/qobject-input-visitor.h" +#include "hw/boards.h" +#include "qom/object_interfaces.h" +#include "hw/mem/memory-device.h" +#include "hw/acpi/acpi_dev_interface.h" + +NameInfo *qmp_query_name(Error **errp) +{ + NameInfo *info = g_malloc0(sizeof(*info)); + + if (qemu_name) { + info->has_name = true; + info->name = g_strdup(qemu_name); + } + + return info; +} + +VersionInfo *qmp_query_version(Error **errp) +{ + VersionInfo *info = g_new0(VersionInfo, 1); + + info->qemu = g_new0(VersionTriple, 1); + info->qemu->major = QEMU_VERSION_MAJOR; + info->qemu->minor = QEMU_VERSION_MINOR; + info->qemu->micro = QEMU_VERSION_MICRO; + info->package = g_strdup(QEMU_PKGVERSION); + + return info; +} + +KvmInfo *qmp_query_kvm(Error **errp) +{ + KvmInfo *info = g_malloc0(sizeof(*info)); + + info->enabled = kvm_enabled(); + info->present = kvm_available(); + + return info; +} + +UuidInfo *qmp_query_uuid(Error **errp) +{ + UuidInfo *info = g_malloc0(sizeof(*info)); + + info->UUID = qemu_uuid_unparse_strdup(&qemu_uuid); + return info; +} + +void qmp_quit(Error **errp) +{ + no_shutdown = 0; + qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_QMP_QUIT); +} + +void qmp_stop(Error **errp) +{ + /* if there is a dump in background, we should wait until the dump + * finished */ + if (dump_in_progress()) { + error_setg(errp, "There is a dump in process, please wait."); + return; + } + + if (runstate_check(RUN_STATE_INMIGRATE)) { + autostart = 0; + } else { + vm_stop(RUN_STATE_PAUSED); + } +} + +void qmp_system_reset(Error **errp) +{ + qemu_system_reset_request(SHUTDOWN_CAUSE_HOST_QMP_SYSTEM_RESET); +} + +void qmp_system_powerdown(Error **erp) +{ + qemu_system_powerdown_request(); +} + +void qmp_cpu_add(int64_t id, Error **errp) +{ + MachineClass *mc; + + mc = MACHINE_GET_CLASS(current_machine); + if (mc->hot_add_cpu) { + mc->hot_add_cpu(id, errp); + } else { + error_setg(errp, "Not supported"); + } +} + +void qmp_x_exit_preconfig(Error **errp) +{ + if (!runstate_check(RUN_STATE_PRECONFIG)) { + error_setg(errp, "The command is permitted only in '%s' state", + RunState_str(RUN_STATE_PRECONFIG)); + return; + } + qemu_exit_preconfig_request(); +} + +void qmp_cont(Error **errp) +{ + BlockBackend *blk; + Error *local_err = NULL; + + /* if there is a dump in background, we should wait until the dump + * finished */ + if (dump_in_progress()) { + error_setg(errp, "There is a dump in process, please wait."); + return; + } + + if (runstate_needs_reset()) { + error_setg(errp, "Resetting the Virtual Machine is required"); + return; + } else if (runstate_check(RUN_STATE_SUSPENDED)) { + return; + } else if (runstate_check(RUN_STATE_FINISH_MIGRATE)) { + error_setg(errp, "Migration is not finalized yet"); + return; + } + + for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { + blk_iostatus_reset(blk); + } + + /* Continuing after completed migration. Images have been inactivated to + * allow the destination to take control. Need to get control back now. + * + * If there are no inactive block nodes (e.g. because the VM was just + * paused rather than completing a migration), bdrv_inactivate_all() simply + * doesn't do anything. */ + bdrv_invalidate_cache_all(&local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + if (runstate_check(RUN_STATE_INMIGRATE)) { + autostart = 1; + } else { + vm_start(); + } +} + +void qmp_system_wakeup(Error **errp) +{ + if (!qemu_wakeup_suspend_enabled()) { + error_setg(errp, + "wake-up from suspend is not supported by this guest"); + return; + } + + qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, errp); +} + +ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp) +{ + Object *obj; + bool ambiguous = false; + ObjectPropertyInfoList *props = NULL; + ObjectProperty *prop; + ObjectPropertyIterator iter; + + obj = object_resolve_path(path, &ambiguous); + if (obj == NULL) { + if (ambiguous) { + error_setg(errp, "Path '%s' is ambiguous", path); + } else { + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, + "Device '%s' not found", path); + } + return NULL; + } + + object_property_iter_init(&iter, obj); + while ((prop = object_property_iter_next(&iter))) { + ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry)); + + entry->value = g_malloc0(sizeof(ObjectPropertyInfo)); + entry->next = props; + props = entry; + + entry->value->name = g_strdup(prop->name); + entry->value->type = g_strdup(prop->type); + } + + return props; +} + +void qmp_qom_set(const char *path, const char *property, QObject *value, + Error **errp) +{ + Object *obj; + + obj = object_resolve_path(path, NULL); + if (!obj) { + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, + "Device '%s' not found", path); + return; + } + + object_property_set_qobject(obj, value, property, errp); +} + +QObject *qmp_qom_get(const char *path, const char *property, Error **errp) +{ + Object *obj; + + obj = object_resolve_path(path, NULL); + if (!obj) { + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, + "Device '%s' not found", path); + return NULL; + } + + return object_property_get_qobject(obj, property, errp); +} + +void qmp_set_password(const char *protocol, const char *password, + bool has_connected, const char *connected, Error **errp) +{ + int disconnect_if_connected = 0; + int fail_if_connected = 0; + int rc; + + if (has_connected) { + if (strcmp(connected, "fail") == 0) { + fail_if_connected = 1; + } else if (strcmp(connected, "disconnect") == 0) { + disconnect_if_connected = 1; + } else if (strcmp(connected, "keep") == 0) { + /* nothing */ + } else { + error_setg(errp, QERR_INVALID_PARAMETER, "connected"); + return; + } + } + + if (strcmp(protocol, "spice") == 0) { + if (!qemu_using_spice(errp)) { + return; + } + rc = qemu_spice_set_passwd(password, fail_if_connected, + disconnect_if_connected); + if (rc != 0) { + error_setg(errp, QERR_SET_PASSWD_FAILED); + } + return; + } + + if (strcmp(protocol, "vnc") == 0) { + if (fail_if_connected || disconnect_if_connected) { + /* vnc supports "connected=keep" only */ + error_setg(errp, QERR_INVALID_PARAMETER, "connected"); + return; + } + /* Note that setting an empty password will not disable login through + * this interface. */ + rc = vnc_display_password(NULL, password); + if (rc < 0) { + error_setg(errp, QERR_SET_PASSWD_FAILED); + } + return; + } + + error_setg(errp, QERR_INVALID_PARAMETER, "protocol"); +} + +void qmp_expire_password(const char *protocol, const char *whenstr, + Error **errp) +{ + time_t when; + int rc; + + if (strcmp(whenstr, "now") == 0) { + when = 0; + } else if (strcmp(whenstr, "never") == 0) { + when = TIME_MAX; + } else if (whenstr[0] == '+') { + when = time(NULL) + strtoull(whenstr+1, NULL, 10); + } else { + when = strtoull(whenstr, NULL, 10); + } + + if (strcmp(protocol, "spice") == 0) { + if (!qemu_using_spice(errp)) { + return; + } + rc = qemu_spice_set_pw_expire(when); + if (rc != 0) { + error_setg(errp, QERR_SET_PASSWD_FAILED); + } + return; + } + + if (strcmp(protocol, "vnc") == 0) { + rc = vnc_display_pw_expire(NULL, when); + if (rc != 0) { + error_setg(errp, QERR_SET_PASSWD_FAILED); + } + return; + } + + error_setg(errp, QERR_INVALID_PARAMETER, "protocol"); +} + +#ifdef CONFIG_VNC +void qmp_change_vnc_password(const char *password, Error **errp) +{ + if (vnc_display_password(NULL, password) < 0) { + error_setg(errp, QERR_SET_PASSWD_FAILED); + } +} + +static void qmp_change_vnc_listen(const char *target, Error **errp) +{ + QemuOptsList *olist = qemu_find_opts("vnc"); + QemuOpts *opts; + + if (strstr(target, "id=")) { + error_setg(errp, "id not supported"); + return; + } + + opts = qemu_opts_find(olist, "default"); + if (opts) { + qemu_opts_del(opts); + } + opts = vnc_parse(target, errp); + if (!opts) { + return; + } + + vnc_display_open("default", errp); +} + +static void qmp_change_vnc(const char *target, bool has_arg, const char *arg, + Error **errp) +{ + if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) { + if (!has_arg) { + error_setg(errp, QERR_MISSING_PARAMETER, "password"); + } else { + qmp_change_vnc_password(arg, errp); + } + } else { + qmp_change_vnc_listen(target, errp); + } +} +#endif /* !CONFIG_VNC */ + +void qmp_change(const char *device, const char *target, + bool has_arg, const char *arg, Error **errp) +{ + if (strcmp(device, "vnc") == 0) { +#ifdef CONFIG_VNC + qmp_change_vnc(target, has_arg, arg, errp); +#else + error_setg(errp, QERR_FEATURE_DISABLED, "vnc"); +#endif + } else { + qmp_blockdev_change_medium(true, device, false, NULL, target, + has_arg, arg, false, 0, errp); + } +} + +static void qom_list_types_tramp(ObjectClass *klass, void *data) +{ + ObjectTypeInfoList *e, **pret = data; + ObjectTypeInfo *info; + ObjectClass *parent = object_class_get_parent(klass); + + info = g_malloc0(sizeof(*info)); + info->name = g_strdup(object_class_get_name(klass)); + info->has_abstract = info->abstract = object_class_is_abstract(klass); + if (parent) { + info->has_parent = true; + info->parent = g_strdup(object_class_get_name(parent)); + } + + e = g_malloc0(sizeof(*e)); + e->value = info; + e->next = *pret; + *pret = e; +} + +ObjectTypeInfoList *qmp_qom_list_types(bool has_implements, + const char *implements, + bool has_abstract, + bool abstract, + Error **errp) +{ + ObjectTypeInfoList *ret = NULL; + + object_class_foreach(qom_list_types_tramp, implements, abstract, &ret); + + return ret; +} + +/* Return a DevicePropertyInfo for a qdev property. + * + * If a qdev property with the given name does not exist, use the given default + * type. If the qdev property info should not be shown, return NULL. + * + * The caller must free the return value. + */ +static ObjectPropertyInfo *make_device_property_info(ObjectClass *klass, + const char *name, + const char *default_type, + const char *description) +{ + ObjectPropertyInfo *info; + Property *prop; + + do { + for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) { + if (strcmp(name, prop->name) != 0) { + continue; + } + + /* + * 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->set && !prop->info->create) { + return NULL; /* no way to set it, don't show */ + } + + info = g_malloc0(sizeof(*info)); + info->name = g_strdup(prop->name); + info->type = default_type ? g_strdup(default_type) + : g_strdup(prop->info->name); + info->has_description = !!prop->info->description; + info->description = g_strdup(prop->info->description); + return info; + } + klass = object_class_get_parent(klass); + } while (klass != object_class_by_name(TYPE_DEVICE)); + + /* Not a qdev property, use the default type */ + info = g_malloc0(sizeof(*info)); + info->name = g_strdup(name); + info->type = g_strdup(default_type); + info->has_description = !!description; + info->description = g_strdup(description); + + return info; +} + +ObjectPropertyInfoList *qmp_device_list_properties(const char *typename, + Error **errp) +{ + ObjectClass *klass; + Object *obj; + ObjectProperty *prop; + ObjectPropertyIterator iter; + ObjectPropertyInfoList *prop_list = NULL; + + klass = object_class_by_name(typename); + if (klass == NULL) { + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, + "Device '%s' not found", typename); + return NULL; + } + + klass = object_class_dynamic_cast(klass, TYPE_DEVICE); + if (klass == NULL) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_DEVICE); + return NULL; + } + + if (object_class_is_abstract(klass)) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", + "non-abstract device type"); + return NULL; + } + + obj = object_new(typename); + + object_property_iter_init(&iter, obj); + while ((prop = object_property_iter_next(&iter))) { + ObjectPropertyInfo *info; + ObjectPropertyInfoList *entry; + + /* Skip Object and DeviceState properties */ + if (strcmp(prop->name, "type") == 0 || + strcmp(prop->name, "realized") == 0 || + strcmp(prop->name, "hotpluggable") == 0 || + strcmp(prop->name, "hotplugged") == 0 || + strcmp(prop->name, "parent_bus") == 0) { + continue; + } + + /* Skip legacy properties since they are just string versions of + * properties that we already list. + */ + if (strstart(prop->name, "legacy-", NULL)) { + continue; + } + + info = make_device_property_info(klass, prop->name, prop->type, + prop->description); + if (!info) { + continue; + } + + entry = g_malloc0(sizeof(*entry)); + entry->value = info; + entry->next = prop_list; + prop_list = entry; + } + + object_unref(obj); + + return prop_list; +} + +ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename, + Error **errp) +{ + ObjectClass *klass; + Object *obj = NULL; + ObjectProperty *prop; + ObjectPropertyIterator iter; + ObjectPropertyInfoList *prop_list = NULL; + + klass = object_class_by_name(typename); + if (klass == NULL) { + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, + "Class '%s' not found", typename); + return NULL; + } + + klass = object_class_dynamic_cast(klass, TYPE_OBJECT); + if (klass == NULL) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_OBJECT); + return NULL; + } + + if (object_class_is_abstract(klass)) { + object_class_property_iter_init(&iter, klass); + } else { + obj = object_new(typename); + object_property_iter_init(&iter, obj); + } + while ((prop = object_property_iter_next(&iter))) { + ObjectPropertyInfo *info; + ObjectPropertyInfoList *entry; + + info = g_malloc0(sizeof(*info)); + info->name = g_strdup(prop->name); + info->type = g_strdup(prop->type); + info->has_description = !!prop->description; + info->description = g_strdup(prop->description); + + entry = g_malloc0(sizeof(*entry)); + entry->value = info; + entry->next = prop_list; + prop_list = entry; + } + + object_unref(obj); + + return prop_list; +} + +void qmp_add_client(const char *protocol, const char *fdname, + bool has_skipauth, bool skipauth, bool has_tls, bool tls, + Error **errp) +{ + Chardev *s; + int fd; + + fd = monitor_get_fd(cur_mon, fdname, errp); + if (fd < 0) { + return; + } + + if (strcmp(protocol, "spice") == 0) { + if (!qemu_using_spice(errp)) { + close(fd); + return; + } + skipauth = has_skipauth ? skipauth : false; + tls = has_tls ? tls : false; + if (qemu_spice_display_add_client(fd, skipauth, tls) < 0) { + error_setg(errp, "spice failed to add client"); + close(fd); + } + return; +#ifdef CONFIG_VNC + } else if (strcmp(protocol, "vnc") == 0) { + skipauth = has_skipauth ? skipauth : false; + vnc_display_add_client(NULL, fd, skipauth); + return; +#endif + } else if ((s = qemu_chr_find(protocol)) != NULL) { + if (qemu_chr_add_client(s, fd) < 0) { + error_setg(errp, "failed to add client"); + close(fd); + return; + } + return; + } + + error_setg(errp, "protocol '%s' is invalid", protocol); + close(fd); +} + + +void qmp_object_add(const char *type, const char *id, + bool has_props, QObject *props, Error **errp) +{ + QDict *pdict; + Visitor *v; + Object *obj; + + if (props) { + pdict = qobject_to(QDict, props); + if (!pdict) { + error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); + return; + } + qobject_ref(pdict); + } else { + pdict = qdict_new(); + } + + v = qobject_input_visitor_new(QOBJECT(pdict)); + obj = user_creatable_add_type(type, id, pdict, v, errp); + visit_free(v); + if (obj) { + object_unref(obj); + } + qobject_unref(pdict); +} + +void qmp_object_del(const char *id, Error **errp) +{ + user_creatable_del(id, errp); +} + +MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp) +{ + return qmp_memory_device_list(); +} + +ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp) +{ + bool ambig; + ACPIOSTInfoList *head = NULL; + ACPIOSTInfoList **prev = &head; + Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambig); + + if (obj) { + AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj); + AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj); + + adevc->ospm_status(adev, &prev); + } else { + error_setg(errp, "command is not supported, missing ACPI device"); + } + + return head; +} + +MemoryInfo *qmp_query_memory_size_summary(Error **errp) +{ + MemoryInfo *mem_info = g_malloc0(sizeof(MemoryInfo)); + + mem_info->base_memory = ram_size; + + mem_info->plugged_memory = get_plugged_memory_size(); + mem_info->has_plugged_memory = + mem_info->plugged_memory != (uint64_t)-1; + + return mem_info; +} |