monitor/qmp-cmds.c

   1 /*
   2  * QEMU Management Protocol commands
   3  *
   4  * Copyright IBM, Corp. 2011
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  *
  12  * Contributions after 2012-01-13 are licensed under the terms of the
  13  * GNU GPL, version 2 or (at your option) any later version.
  14  */
  15
  16 #include "qemu/osdep.h"
  17 #include "qemu-common.h"
  18 #include "qemu-version.h"
  19 #include "qemu/cutils.h"
  20 #include "qemu/option.h"
  21 #include "monitor/monitor.h"
  22 #include "sysemu/sysemu.h"
  23 #include "qemu/config-file.h"
  24 #include "qemu/uuid.h"
  25 #include "chardev/char.h"
  26 #include "ui/qemu-spice.h"
  27 #include "ui/vnc.h"
  28 #include "sysemu/kvm.h"
  29 #include "sysemu/arch_init.h"
  30 #include "hw/qdev.h"
  31 #include "sysemu/blockdev.h"
  32 #include "sysemu/block-backend.h"
  33 #include "qom/qom-qobject.h"
  34 #include "qapi/error.h"
  35 #include "qapi/qapi-commands-block-core.h"
  36 #include "qapi/qapi-commands-misc.h"
  37 #include "qapi/qapi-commands-ui.h"
  38 #include "qapi/qmp/qdict.h"
  39 #include "qapi/qmp/qerror.h"
  40 #include "qapi/qobject-input-visitor.h"
  41 #include "hw/boards.h"
  42 #include "qom/object_interfaces.h"
  43 #include "hw/mem/memory-device.h"
  44 #include "hw/acpi/acpi_dev_interface.h"
  45
  46 NameInfo *qmp_query_name(Error **errp)
  47 {
  48     NameInfo *info = g_malloc0(sizeof(*info));
  49
  50     if (qemu_name) {
  51         info->has_name = true;
  52         info->name = g_strdup(qemu_name);
  53     }
  54
  55     return info;
  56 }
  57
  58 VersionInfo *qmp_query_version(Error **errp)
  59 {
  60     VersionInfo *info = g_new0(VersionInfo, 1);
  61
  62     info->qemu = g_new0(VersionTriple, 1);
  63     info->qemu->major = QEMU_VERSION_MAJOR;
  64     info->qemu->minor = QEMU_VERSION_MINOR;
  65     info->qemu->micro = QEMU_VERSION_MICRO;
  66     info->package = g_strdup(QEMU_PKGVERSION);
  67
  68     return info;
  69 }
  70
  71 KvmInfo *qmp_query_kvm(Error **errp)
  72 {
  73     KvmInfo *info = g_malloc0(sizeof(*info));
  74
  75     info->enabled = kvm_enabled();
  76     info->present = kvm_available();
  77
  78     return info;
  79 }
  80
  81 UuidInfo *qmp_query_uuid(Error **errp)
  82 {
  83     UuidInfo *info = g_malloc0(sizeof(*info));
  84
  85     info->UUID = qemu_uuid_unparse_strdup(&qemu_uuid);
  86     return info;
  87 }
  88
  89 void qmp_quit(Error **errp)
  90 {
  91     no_shutdown = 0;
  92     qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_QMP_QUIT);
  93 }
  94
  95 void qmp_stop(Error **errp)
  96 {
  97     /* if there is a dump in background, we should wait until the dump
  98      * finished */
  99     if (dump_in_progress()) {
 100         error_setg(errp, "There is a dump in process, please wait.");
 101         return;
 102     }
 103
 104     if (runstate_check(RUN_STATE_INMIGRATE)) {
 105         autostart = 0;
 106     } else {
 107         vm_stop(RUN_STATE_PAUSED);
 108     }
 109 }
 110
 111 void qmp_system_reset(Error **errp)
 112 {
 113     qemu_system_reset_request(SHUTDOWN_CAUSE_HOST_QMP_SYSTEM_RESET);
 114 }
 115
 116 void qmp_system_powerdown(Error **erp)
 117 {
 118     qemu_system_powerdown_request();
 119 }
 120
 121 void qmp_cpu_add(int64_t id, Error **errp)
 122 {
 123     MachineClass *mc;
 124
 125     mc = MACHINE_GET_CLASS(current_machine);
 126     if (mc->hot_add_cpu) {
 127         mc->hot_add_cpu(id, errp);
 128     } else {
 129         error_setg(errp, "Not supported");
 130     }
 131 }
 132
 133 void qmp_x_exit_preconfig(Error **errp)
 134 {
 135     if (!runstate_check(RUN_STATE_PRECONFIG)) {
 136         error_setg(errp, "The command is permitted only in '%s' state",
 137                    RunState_str(RUN_STATE_PRECONFIG));
 138         return;
 139     }
 140     qemu_exit_preconfig_request();
 141 }
 142
 143 void qmp_cont(Error **errp)
 144 {
 145     BlockBackend *blk;
 146     BlockJob *job;
 147     Error *local_err = NULL;
 148
 149     /* if there is a dump in background, we should wait until the dump
 150      * finished */
 151     if (dump_in_progress()) {
 152         error_setg(errp, "There is a dump in process, please wait.");
 153         return;
 154     }
 155
 156     if (runstate_needs_reset()) {
 157         error_setg(errp, "Resetting the Virtual Machine is required");
 158         return;
 159     } else if (runstate_check(RUN_STATE_SUSPENDED)) {
 160         return;
 161     } else if (runstate_check(RUN_STATE_FINISH_MIGRATE)) {
 162         error_setg(errp, "Migration is not finalized yet");
 163         return;
 164     }
 165
 166     for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
 167         blk_iostatus_reset(blk);
 168     }
 169
 170     for (job = block_job_next(NULL); job; job = block_job_next(job)) {
 171         block_job_iostatus_reset(job);
 172     }
 173
 174     /* Continuing after completed migration. Images have been inactivated to
 175      * allow the destination to take control. Need to get control back now.
 176      *
 177      * If there are no inactive block nodes (e.g. because the VM was just
 178      * paused rather than completing a migration), bdrv_inactivate_all() simply
 179      * doesn't do anything. */
 180     bdrv_invalidate_cache_all(&local_err);
 181     if (local_err) {
 182         error_propagate(errp, local_err);
 183         return;
 184     }
 185
 186     if (runstate_check(RUN_STATE_INMIGRATE)) {
 187         autostart = 1;
 188     } else {
 189         vm_start();
 190     }
 191 }
 192
 193 void qmp_system_wakeup(Error **errp)
 194 {
 195     if (!qemu_wakeup_suspend_enabled()) {
 196         error_setg(errp,
 197                    "wake-up from suspend is not supported by this guest");
 198         return;
 199     }
 200
 201     qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, errp);
 202 }
 203
 204 ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
 205 {
 206     Object *obj;
 207     bool ambiguous = false;
 208     ObjectPropertyInfoList *props = NULL;
 209     ObjectProperty *prop;
 210     ObjectPropertyIterator iter;
 211
 212     obj = object_resolve_path(path, &ambiguous);
 213     if (obj == NULL) {
 214         if (ambiguous) {
 215             error_setg(errp, "Path '%s' is ambiguous", path);
 216         } else {
 217             error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
 218                       "Device '%s' not found", path);
 219         }
 220         return NULL;
 221     }
 222
 223     object_property_iter_init(&iter, obj);
 224     while ((prop = object_property_iter_next(&iter))) {
 225         ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry));
 226
 227         entry->value = g_malloc0(sizeof(ObjectPropertyInfo));
 228         entry->next = props;
 229         props = entry;
 230
 231         entry->value->name = g_strdup(prop->name);
 232         entry->value->type = g_strdup(prop->type);
 233     }
 234
 235     return props;
 236 }
 237
 238 void qmp_qom_set(const char *path, const char *property, QObject *value,
 239                  Error **errp)
 240 {
 241     Object *obj;
 242
 243     obj = object_resolve_path(path, NULL);
 244     if (!obj) {
 245         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
 246                   "Device '%s' not found", path);
 247         return;
 248     }
 249
 250     object_property_set_qobject(obj, value, property, errp);
 251 }
 252
 253 QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
 254 {
 255     Object *obj;
 256
 257     obj = object_resolve_path(path, NULL);
 258     if (!obj) {
 259         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
 260                   "Device '%s' not found", path);
 261         return NULL;
 262     }
 263
 264     return object_property_get_qobject(obj, property, errp);
 265 }
 266
 267 void qmp_set_password(const char *protocol, const char *password,
 268                       bool has_connected, const char *connected, Error **errp)
 269 {
 270     int disconnect_if_connected = 0;
 271     int fail_if_connected = 0;
 272     int rc;
 273
 274     if (has_connected) {
 275         if (strcmp(connected, "fail") == 0) {
 276             fail_if_connected = 1;
 277         } else if (strcmp(connected, "disconnect") == 0) {
 278             disconnect_if_connected = 1;
 279         } else if (strcmp(connected, "keep") == 0) {
 280             /* nothing */
 281         } else {
 282             error_setg(errp, QERR_INVALID_PARAMETER, "connected");
 283             return;
 284         }
 285     }
 286
 287     if (strcmp(protocol, "spice") == 0) {
 288         if (!qemu_using_spice(errp)) {
 289             return;
 290         }
 291         rc = qemu_spice_set_passwd(password, fail_if_connected,
 292                                    disconnect_if_connected);
 293         if (rc != 0) {
 294             error_setg(errp, QERR_SET_PASSWD_FAILED);
 295         }
 296         return;
 297     }
 298
 299     if (strcmp(protocol, "vnc") == 0) {
 300         if (fail_if_connected || disconnect_if_connected) {
 301             /* vnc supports "connected=keep" only */
 302             error_setg(errp, QERR_INVALID_PARAMETER, "connected");
 303             return;
 304         }
 305         /* Note that setting an empty password will not disable login through
 306          * this interface. */
 307         rc = vnc_display_password(NULL, password);
 308         if (rc < 0) {
 309             error_setg(errp, QERR_SET_PASSWD_FAILED);
 310         }
 311         return;
 312     }
 313
 314     error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
 315 }
 316
 317 void qmp_expire_password(const char *protocol, const char *whenstr,
 318                          Error **errp)
 319 {
 320     time_t when;
 321     int rc;
 322
 323     if (strcmp(whenstr, "now") == 0) {
 324         when = 0;
 325     } else if (strcmp(whenstr, "never") == 0) {
 326         when = TIME_MAX;
 327     } else if (whenstr[0] == '+') {
 328         when = time(NULL) + strtoull(whenstr+1, NULL, 10);
 329     } else {
 330         when = strtoull(whenstr, NULL, 10);
 331     }
 332
 333     if (strcmp(protocol, "spice") == 0) {
 334         if (!qemu_using_spice(errp)) {
 335             return;
 336         }
 337         rc = qemu_spice_set_pw_expire(when);
 338         if (rc != 0) {
 339             error_setg(errp, QERR_SET_PASSWD_FAILED);
 340         }
 341         return;
 342     }
 343
 344     if (strcmp(protocol, "vnc") == 0) {
 345         rc = vnc_display_pw_expire(NULL, when);
 346         if (rc != 0) {
 347             error_setg(errp, QERR_SET_PASSWD_FAILED);
 348         }
 349         return;
 350     }
 351
 352     error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
 353 }
 354
 355 #ifdef CONFIG_VNC
 356 void qmp_change_vnc_password(const char *password, Error **errp)
 357 {
 358     if (vnc_display_password(NULL, password) < 0) {
 359         error_setg(errp, QERR_SET_PASSWD_FAILED);
 360     }
 361 }
 362
 363 static void qmp_change_vnc_listen(const char *target, Error **errp)
 364 {
 365     QemuOptsList *olist = qemu_find_opts("vnc");
 366     QemuOpts *opts;
 367
 368     if (strstr(target, "id=")) {
 369         error_setg(errp, "id not supported");
 370         return;
 371     }
 372
 373     opts = qemu_opts_find(olist, "default");
 374     if (opts) {
 375         qemu_opts_del(opts);
 376     }
 377     opts = vnc_parse(target, errp);
 378     if (!opts) {
 379         return;
 380     }
 381
 382     vnc_display_open("default", errp);
 383 }
 384
 385 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
 386                            Error **errp)
 387 {
 388     if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) {
 389         if (!has_arg) {
 390             error_setg(errp, QERR_MISSING_PARAMETER, "password");
 391         } else {
 392             qmp_change_vnc_password(arg, errp);
 393         }
 394     } else {
 395         qmp_change_vnc_listen(target, errp);
 396     }
 397 }
 398 #endif /* !CONFIG_VNC */
 399
 400 void qmp_change(const char *device, const char *target,
 401                 bool has_arg, const char *arg, Error **errp)
 402 {
 403     if (strcmp(device, "vnc") == 0) {
 404 #ifdef CONFIG_VNC
 405         qmp_change_vnc(target, has_arg, arg, errp);
 406 #else
 407         error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
 408 #endif
 409     } else {
 410         qmp_blockdev_change_medium(true, device, false, NULL, target,
 411                                    has_arg, arg, false, 0, errp);
 412     }
 413 }
 414
 415 static void qom_list_types_tramp(ObjectClass *klass, void *data)
 416 {
 417     ObjectTypeInfoList *e, **pret = data;
 418     ObjectTypeInfo *info;
 419     ObjectClass *parent = object_class_get_parent(klass);
 420
 421     info = g_malloc0(sizeof(*info));
 422     info->name = g_strdup(object_class_get_name(klass));
 423     info->has_abstract = info->abstract = object_class_is_abstract(klass);
 424     if (parent) {
 425         info->has_parent = true;
 426         info->parent = g_strdup(object_class_get_name(parent));
 427     }
 428
 429     e = g_malloc0(sizeof(*e));
 430     e->value = info;
 431     e->next = *pret;
 432     *pret = e;
 433 }
 434
 435 ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
 436                                        const char *implements,
 437                                        bool has_abstract,
 438                                        bool abstract,
 439                                        Error **errp)
 440 {
 441     ObjectTypeInfoList *ret = NULL;
 442
 443     object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
 444
 445     return ret;
 446 }
 447
 448 /* Return a DevicePropertyInfo for a qdev property.
 449  *
 450  * If a qdev property with the given name does not exist, use the given default
 451  * type.  If the qdev property info should not be shown, return NULL.
 452  *
 453  * The caller must free the return value.
 454  */
 455 static ObjectPropertyInfo *make_device_property_info(ObjectClass *klass,
 456                                                   const char *name,
 457                                                   const char *default_type,
 458                                                   const char *description)
 459 {
 460     ObjectPropertyInfo *info;
 461     Property *prop;
 462
 463     do {
 464         for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
 465             if (strcmp(name, prop->name) != 0) {
 466                 continue;
 467             }
 468
 469             /*
 470              * TODO Properties without a parser are just for dirty hacks.
 471              * qdev_prop_ptr is the only such PropertyInfo.  It's marked
 472              * for removal.  This conditional should be removed along with
 473              * it.
 474              */
 475             if (!prop->info->set && !prop->info->create) {
 476                 return NULL;           /* no way to set it, don't show */
 477             }
 478
 479             info = g_malloc0(sizeof(*info));
 480             info->name = g_strdup(prop->name);
 481             info->type = default_type ? g_strdup(default_type)
 482                                       : g_strdup(prop->info->name);
 483             info->has_description = !!prop->info->description;
 484             info->description = g_strdup(prop->info->description);
 485             return info;
 486         }
 487         klass = object_class_get_parent(klass);
 488     } while (klass != object_class_by_name(TYPE_DEVICE));
 489
 490     /* Not a qdev property, use the default type */
 491     info = g_malloc0(sizeof(*info));
 492     info->name = g_strdup(name);
 493     info->type = g_strdup(default_type);
 494     info->has_description = !!description;
 495     info->description = g_strdup(description);
 496
 497     return info;
 498 }
 499
 500 ObjectPropertyInfoList *qmp_device_list_properties(const char *typename,
 501                                                 Error **errp)
 502 {
 503     ObjectClass *klass;
 504     Object *obj;
 505     ObjectProperty *prop;
 506     ObjectPropertyIterator iter;
 507     ObjectPropertyInfoList *prop_list = NULL;
 508
 509     klass = object_class_by_name(typename);
 510     if (klass == NULL) {
 511         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
 512                   "Device '%s' not found", typename);
 513         return NULL;
 514     }
 515
 516     klass = object_class_dynamic_cast(klass, TYPE_DEVICE);
 517     if (klass == NULL) {
 518         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_DEVICE);
 519         return NULL;
 520     }
 521
 522     if (object_class_is_abstract(klass)) {
 523         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
 524                    "non-abstract device type");
 525         return NULL;
 526     }
 527
 528     obj = object_new(typename);
 529
 530     object_property_iter_init(&iter, obj);
 531     while ((prop = object_property_iter_next(&iter))) {
 532         ObjectPropertyInfo *info;
 533         ObjectPropertyInfoList *entry;
 534
 535         /* Skip Object and DeviceState properties */
 536         if (strcmp(prop->name, "type") == 0 ||
 537             strcmp(prop->name, "realized") == 0 ||
 538             strcmp(prop->name, "hotpluggable") == 0 ||
 539             strcmp(prop->name, "hotplugged") == 0 ||
 540             strcmp(prop->name, "parent_bus") == 0) {
 541             continue;
 542         }
 543
 544         /* Skip legacy properties since they are just string versions of
 545          * properties that we already list.
 546          */
 547         if (strstart(prop->name, "legacy-", NULL)) {
 548             continue;
 549         }
 550
 551         info = make_device_property_info(klass, prop->name, prop->type,
 552                                          prop->description);
 553         if (!info) {
 554             continue;
 555         }
 556
 557         entry = g_malloc0(sizeof(*entry));
 558         entry->value = info;
 559         entry->next = prop_list;
 560         prop_list = entry;
 561     }
 562
 563     object_unref(obj);
 564
 565     return prop_list;
 566 }
 567
 568 ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename,
 569                                              Error **errp)
 570 {
 571     ObjectClass *klass;
 572     Object *obj = NULL;
 573     ObjectProperty *prop;
 574     ObjectPropertyIterator iter;
 575     ObjectPropertyInfoList *prop_list = NULL;
 576
 577     klass = object_class_by_name(typename);
 578     if (klass == NULL) {
 579         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
 580                   "Class '%s' not found", typename);
 581         return NULL;
 582     }
 583
 584     klass = object_class_dynamic_cast(klass, TYPE_OBJECT);
 585     if (klass == NULL) {
 586         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_OBJECT);
 587         return NULL;
 588     }
 589
 590     if (object_class_is_abstract(klass)) {
 591         object_class_property_iter_init(&iter, klass);
 592     } else {
 593         obj = object_new(typename);
 594         object_property_iter_init(&iter, obj);
 595     }
 596     while ((prop = object_property_iter_next(&iter))) {
 597         ObjectPropertyInfo *info;
 598         ObjectPropertyInfoList *entry;
 599
 600         info = g_malloc0(sizeof(*info));
 601         info->name = g_strdup(prop->name);
 602         info->type = g_strdup(prop->type);
 603         info->has_description = !!prop->description;
 604         info->description = g_strdup(prop->description);
 605
 606         entry = g_malloc0(sizeof(*entry));
 607         entry->value = info;
 608         entry->next = prop_list;
 609         prop_list = entry;
 610     }
 611
 612     object_unref(obj);
 613
 614     return prop_list;
 615 }
 616
 617 void qmp_add_client(const char *protocol, const char *fdname,
 618                     bool has_skipauth, bool skipauth, bool has_tls, bool tls,
 619                     Error **errp)
 620 {
 621     Chardev *s;
 622     int fd;
 623
 624     fd = monitor_get_fd(cur_mon, fdname, errp);
 625     if (fd < 0) {
 626         return;
 627     }
 628
 629     if (strcmp(protocol, "spice") == 0) {
 630         if (!qemu_using_spice(errp)) {
 631             close(fd);
 632             return;
 633         }
 634         skipauth = has_skipauth ? skipauth : false;
 635         tls = has_tls ? tls : false;
 636         if (qemu_spice_display_add_client(fd, skipauth, tls) < 0) {
 637             error_setg(errp, "spice failed to add client");
 638             close(fd);
 639         }
 640         return;
 641 #ifdef CONFIG_VNC
 642     } else if (strcmp(protocol, "vnc") == 0) {
 643         skipauth = has_skipauth ? skipauth : false;
 644         vnc_display_add_client(NULL, fd, skipauth);
 645         return;
 646 #endif
 647     } else if ((s = qemu_chr_find(protocol)) != NULL) {
 648         if (qemu_chr_add_client(s, fd) < 0) {
 649             error_setg(errp, "failed to add client");
 650             close(fd);
 651             return;
 652         }
 653         return;
 654     }
 655
 656     error_setg(errp, "protocol '%s' is invalid", protocol);
 657     close(fd);
 658 }
 659
 660
 661 void qmp_object_add(const char *type, const char *id,
 662                     bool has_props, QObject *props, Error **errp)
 663 {
 664     QDict *pdict;
 665     Visitor *v;
 666     Object *obj;
 667
 668     if (props) {
 669         pdict = qobject_to(QDict, props);
 670         if (!pdict) {
 671             error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
 672             return;
 673         }
 674         qobject_ref(pdict);
 675     } else {
 676         pdict = qdict_new();
 677     }
 678
 679     v = qobject_input_visitor_new(QOBJECT(pdict));
 680     obj = user_creatable_add_type(type, id, pdict, v, errp);
 681     visit_free(v);
 682     if (obj) {
 683         object_unref(obj);
 684     }
 685     qobject_unref(pdict);
 686 }
 687
 688 void qmp_object_del(const char *id, Error **errp)
 689 {
 690     user_creatable_del(id, errp);
 691 }
 692
 693 MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
 694 {
 695     return qmp_memory_device_list();
 696 }
 697
 698 ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp)
 699 {
 700     bool ambig;
 701     ACPIOSTInfoList *head = NULL;
 702     ACPIOSTInfoList **prev = &head;
 703     Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambig);
 704
 705     if (obj) {
 706         AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
 707         AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj);
 708
 709         adevc->ospm_status(adev, &prev);
 710     } else {
 711         error_setg(errp, "command is not supported, missing ACPI device");
 712     }
 713
 714     return head;
 715 }
 716
 717 MemoryInfo *qmp_query_memory_size_summary(Error **errp)
 718 {
 719     MemoryInfo *mem_info = g_malloc0(sizeof(MemoryInfo));
 720
 721     mem_info->base_memory = ram_size;
 722
 723     mem_info->plugged_memory = get_plugged_memory_size();
 724     mem_info->has_plugged_memory =
 725         mem_info->plugged_memory != (uint64_t)-1;
 726
 727     return mem_info;
 728 }