diff options
Diffstat (limited to 'src/qmp.c')
| -rw-r--r-- | src/qmp.c | 744 |
1 files changed, 744 insertions, 0 deletions
diff --git a/src/qmp.c b/src/qmp.c new file mode 100644 index 0000000..0a1fa19 --- /dev/null +++ b/src/qmp.c @@ -0,0 +1,744 @@ +/* + * QEMU Management Protocol + * + * 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-common.h" +#include "monitor/monitor.h" +#include "sysemu/sysemu.h" +#include "qmp-commands.h" +#include "sysemu/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/qmp/qerror.h" +#include "qapi/qmp/qobject.h" +#include "qapi/qmp-input-visitor.h" +#include "hw/boards.h" +#include "qom/object_interfaces.h" +#include "hw/mem/pc-dimm.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); + const char *version = QEMU_VERSION; + const char *tmp; + int err; + + info->qemu = g_new0(VersionTriple, 1); + err = qemu_strtoll(version, &tmp, 10, &info->qemu->major); + assert(err == 0); + tmp++; + + err = qemu_strtoll(tmp, &tmp, 10, &info->qemu->minor); + assert(err == 0); + tmp++; + + err = qemu_strtoll(tmp, &tmp, 10, &info->qemu->micro); + assert(err == 0); + 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)); + char uuid[64]; + + snprintf(uuid, sizeof(uuid), UUID_FMT, qemu_uuid[0], qemu_uuid[1], + qemu_uuid[2], qemu_uuid[3], qemu_uuid[4], qemu_uuid[5], + qemu_uuid[6], qemu_uuid[7], qemu_uuid[8], qemu_uuid[9], + qemu_uuid[10], qemu_uuid[11], qemu_uuid[12], qemu_uuid[13], + qemu_uuid[14], qemu_uuid[15]); + + info->UUID = g_strdup(uuid); + return info; +} + +void qmp_quit(Error **errp) +{ + no_shutdown = 0; + qemu_system_shutdown_request(); +} + +void qmp_stop(Error **errp) +{ + if (runstate_check(RUN_STATE_INMIGRATE)) { + autostart = 0; + } else { + vm_stop(RUN_STATE_PAUSED); + } +} + +void qmp_system_reset(Error **errp) +{ + qemu_system_reset_request(); +} + +void qmp_system_powerdown(Error **erp) +{ + qemu_system_powerdown_request(); +} + +void qmp_cpu(int64_t index, Error **errp) +{ + /* Just do nothing */ +} + +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"); + } +} + +#ifndef CONFIG_VNC +/* If VNC support is enabled, the "true" query-vnc command is + defined in the VNC subsystem */ +VncInfo *qmp_query_vnc(Error **errp) +{ + error_setg(errp, QERR_FEATURE_DISABLED, "vnc"); + return NULL; +}; + +VncInfo2List *qmp_query_vnc_servers(Error **errp) +{ + error_setg(errp, QERR_FEATURE_DISABLED, "vnc"); + return NULL; +}; +#endif + +#ifndef CONFIG_SPICE +/* + * qmp-commands.hx ensures that QMP command query-spice exists only + * #ifdef CONFIG_SPICE. Necessary for an accurate query-commands + * result. However, the QAPI schema is blissfully unaware of that, + * and the QAPI code generator happily generates a dead + * qmp_marshal_query_spice() that calls qmp_query_spice(). Provide it + * one, or else linking fails. FIXME Educate the QAPI schema on + * CONFIG_SPICE. + */ +SpiceInfo *qmp_query_spice(Error **errp) +{ + abort(); +}; +#endif + +void qmp_cont(Error **errp) +{ + Error *local_err = NULL; + BlockBackend *blk; + BlockDriverState *bs; + + if (runstate_needs_reset()) { + error_setg(errp, "Resetting the Virtual Machine is required"); + return; + } else if (runstate_check(RUN_STATE_SUSPENDED)) { + return; + } + + for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { + blk_iostatus_reset(blk); + } + for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) { + bdrv_add_key(bs, NULL, &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) +{ + qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER); +} + +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; + } + + iter = object_property_iter_init(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); + } + object_property_iter_free(iter); + + 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); + } +} +#else +void qmp_change_vnc_password(const char *password, Error **errp) +{ + error_setg(errp, QERR_FEATURE_DISABLED, "vnc"); +} +static void qmp_change_vnc(const char *target, bool has_arg, const char *arg, + Error **errp) +{ + error_setg(errp, QERR_FEATURE_DISABLED, "vnc"); +} +#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) { + qmp_change_vnc(target, has_arg, arg, errp); + } else { + qmp_blockdev_change_medium(device, target, has_arg, arg, false, 0, + errp); + } +} + +static void qom_list_types_tramp(ObjectClass *klass, void *data) +{ + ObjectTypeInfoList *e, **pret = data; + ObjectTypeInfo *info; + + info = g_malloc0(sizeof(*info)); + info->name = g_strdup(object_class_get_name(klass)); + + 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 DevicePropertyInfo *make_device_property_info(ObjectClass *klass, + const char *name, + const char *default_type, + const char *description) +{ + DevicePropertyInfo *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) { + return NULL; /* no way to set it, don't show */ + } + + info = g_malloc0(sizeof(*info)); + info->name = g_strdup(prop->name); + info->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; +} + +DevicePropertyInfoList *qmp_device_list_properties(const char *typename, + Error **errp) +{ + ObjectClass *klass; + Object *obj; + ObjectProperty *prop; + ObjectPropertyIterator *iter; + DevicePropertyInfoList *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, "name", TYPE_DEVICE); + return NULL; + } + + if (object_class_is_abstract(klass)) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "name", + "non-abstract device type"); + return NULL; + } + + if (DEVICE_CLASS(klass)->cannot_destroy_with_object_finalize_yet) { + error_setg(errp, "Can't list properties of device '%s'", typename); + return NULL; + } + + obj = object_new(typename); + + iter = object_property_iter_init(obj); + while ((prop = object_property_iter_next(iter))) { + DevicePropertyInfo *info; + DevicePropertyInfoList *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_property_iter_free(iter); + + object_unref(obj); + + return prop_list; +} + +CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp) +{ + return arch_query_cpu_definitions(errp); +} + +void qmp_add_client(const char *protocol, const char *fdname, + bool has_skipauth, bool skipauth, bool has_tls, bool tls, + Error **errp) +{ + CharDriverState *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 object_add(const char *type, const char *id, const QDict *qdict, + Visitor *v, Error **errp) +{ + Object *obj; + ObjectClass *klass; + const QDictEntry *e; + Error *local_err = NULL; + + klass = object_class_by_name(type); + if (!klass) { + error_setg(errp, "invalid object type: %s", type); + return; + } + + if (!object_class_dynamic_cast(klass, TYPE_USER_CREATABLE)) { + error_setg(errp, "object type '%s' isn't supported by object-add", + type); + return; + } + + if (object_class_is_abstract(klass)) { + error_setg(errp, "object type '%s' is abstract", type); + return; + } + + obj = object_new(type); + if (qdict) { + for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) { + object_property_set(obj, v, e->key, &local_err); + if (local_err) { + goto out; + } + } + } + + object_property_add_child(object_get_objects_root(), + id, obj, &local_err); + if (local_err) { + goto out; + } + + user_creatable_complete(obj, &local_err); + if (local_err) { + object_property_del(object_get_objects_root(), + id, &error_abort); + goto out; + } +out: + if (local_err) { + error_propagate(errp, local_err); + } + object_unref(obj); +} + +void qmp_object_add(const char *type, const char *id, + bool has_props, QObject *props, Error **errp) +{ + const QDict *pdict = NULL; + QmpInputVisitor *qiv; + + if (props) { + pdict = qobject_to_qdict(props); + if (!pdict) { + error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); + return; + } + } + + qiv = qmp_input_visitor_new(props); + object_add(type, id, pdict, qmp_input_get_visitor(qiv), errp); + qmp_input_visitor_cleanup(qiv); +} + +void qmp_object_del(const char *id, Error **errp) +{ + Object *container; + Object *obj; + + container = object_get_objects_root(); + obj = object_resolve_path_component(container, id); + if (!obj) { + error_setg(errp, "object id not found"); + return; + } + + if (!user_creatable_can_be_deleted(USER_CREATABLE(obj), errp)) { + error_setg(errp, "%s is in use, can not be deleted", id); + return; + } + object_unparent(obj); +} + +MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp) +{ + MemoryDeviceInfoList *head = NULL; + MemoryDeviceInfoList **prev = &head; + + qmp_pc_dimm_device_list(qdev_get_machine(), &prev); + + return head; +} + +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; +} |
