Linux preempt-rt

Check our new training course

Real-Time Linux with PREEMPT_RT

Check our new training course
with Creative Commons CC-BY-SA
lecture and lab materials

Bootlin logo

Elixir Cross Referencer

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
HXCOMM Use DEFHEADING() to define headings in both help text and rST.
HXCOMM Text between SRST and ERST is copied to the rST version and
HXCOMM discarded from C version.
HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
HXCOMM monitor commands
HXCOMM HXCOMM can be used for comments, discarded from both rST and C.


    {
        .name       = "help|?",
        .args_type  = "name:S?",
        .params     = "[cmd]",
        .help       = "show the help",
        .cmd        = do_help_cmd,
        .flags      = "p",
    },

SRST
``help`` or ``?`` [*cmd*]
  Show the help for all commands or just for command *cmd*.
ERST

    {
        .name       = "commit",
        .args_type  = "device:B",
        .params     = "device|all",
        .help       = "commit changes to the disk images (if -snapshot is used) or backing files",
        .cmd        = hmp_commit,
    },

SRST
``commit``
  Commit changes to the disk images (if -snapshot is used) or backing files.
  If the backing file is smaller than the snapshot, then the backing file
  will be resized to be the same size as the snapshot.  If the snapshot is
  smaller than the backing file, the backing file will not be truncated.
  If you want the backing file to match the size of the smaller snapshot,
  you can safely truncate it yourself once the commit operation successfully
  completes.
ERST

    {
        .name       = "quit|q",
        .args_type  = "",
        .params     = "",
        .help       = "quit the emulator",
        .cmd        = hmp_quit,
        .flags      = "p",
    },

SRST
``quit`` or ``q``
  Quit the emulator.
ERST

    {
        .name       = "exit_preconfig",
        .args_type  = "",
        .params     = "",
        .help       = "exit the preconfig state",
        .cmd        = hmp_exit_preconfig,
        .flags      = "p",
    },

SRST
``exit_preconfig``
  This command makes QEMU exit the preconfig state and proceed with
  VM initialization using configuration data provided on the command line
  and via the QMP monitor during the preconfig state. The command is only
  available during the preconfig state (i.e. when the --preconfig command
  line option was in use).
ERST

    {
        .name       = "block_resize",
        .args_type  = "device:B,size:o",
        .params     = "device size",
        .help       = "resize a block image",
        .cmd        = hmp_block_resize,
        .coroutine  = true,
    },

SRST
``block_resize``
  Resize a block image while a guest is running.  Usually requires guest
  action to see the updated size.  Resize to a lower size is supported,
  but should be used with extreme caution.  Note that this command only
  resizes image files, it can not resize block devices like LVM volumes.
ERST

    {
        .name       = "block_stream",
        .args_type  = "device:B,speed:o?,base:s?",
        .params     = "device [speed [base]]",
        .help       = "copy data from a backing file into a block device",
        .cmd        = hmp_block_stream,
    },

SRST
``block_stream``
  Copy data from a backing file into a block device.
ERST

    {
        .name       = "block_job_set_speed",
        .args_type  = "device:B,speed:o",
        .params     = "device speed",
        .help       = "set maximum speed for a background block operation",
        .cmd        = hmp_block_job_set_speed,
    },

SRST
``block_job_set_speed``
  Set maximum speed for a background block operation.
ERST

    {
        .name       = "block_job_cancel",
        .args_type  = "force:-f,device:B",
        .params     = "[-f] device",
        .help       = "stop an active background block operation (use -f"
                      "\n\t\t\t if you want to abort the operation immediately"
                      "\n\t\t\t instead of keep running until data is in sync)",
        .cmd        = hmp_block_job_cancel,
    },

SRST
``block_job_cancel``
  Stop an active background block operation (streaming, mirroring).
ERST

    {
        .name       = "block_job_complete",
        .args_type  = "device:B",
        .params     = "device",
        .help       = "stop an active background block operation",
        .cmd        = hmp_block_job_complete,
    },

SRST
``block_job_complete``
  Manually trigger completion of an active background block operation.
  For mirroring, this will switch the device to the destination path.
ERST

    {
        .name       = "block_job_pause",
        .args_type  = "device:B",
        .params     = "device",
        .help       = "pause an active background block operation",
        .cmd        = hmp_block_job_pause,
    },

SRST
``block_job_pause``
  Pause an active block streaming operation.
ERST

    {
        .name       = "block_job_resume",
        .args_type  = "device:B",
        .params     = "device",
        .help       = "resume a paused background block operation",
        .cmd        = hmp_block_job_resume,
    },

SRST
``block_job_resume``
  Resume a paused block streaming operation.
ERST

    {
        .name       = "eject",
        .args_type  = "force:-f,device:B",
        .params     = "[-f] device",
        .help       = "eject a removable medium (use -f to force it)",
        .cmd        = hmp_eject,
    },

SRST
``eject [-f]`` *device*
  Eject a removable medium (use -f to force it).
ERST

    {
        .name       = "drive_del",
        .args_type  = "id:B",
        .params     = "device",
        .help       = "remove host block device",
        .cmd        = hmp_drive_del,
    },

SRST
``drive_del`` *device*
  Remove host block device.  The result is that guest generated IO is no longer
  submitted against the host device underlying the disk.  Once a drive has
  been deleted, the QEMU Block layer returns -EIO which results in IO
  errors in the guest for applications that are reading/writing to the device.
  These errors are always reported to the guest, regardless of the drive's error
  actions (drive options rerror, werror).
ERST

    {
        .name       = "change",
        .args_type  = "device:B,target:F,arg:s?,read-only-mode:s?",
        .params     = "device filename [format [read-only-mode]]",
        .help       = "change a removable medium, optional format",
        .cmd        = hmp_change,
    },

SRST
``change`` *device* *setting*
  Change the configuration of a device.

  ``change`` *diskdevice* *filename* [*format* [*read-only-mode*]]
    Change the medium for a removable disk device to point to *filename*. eg::

      (qemu) change ide1-cd0 /path/to/some.iso

    *format* is optional.

    *read-only-mode* may be used to change the read-only status of the device.
    It accepts the following values:

    retain
      Retains the current status; this is the default.

    read-only
      Makes the device read-only.

    read-write
      Makes the device writable.

  ``change vnc password`` [*password*]

    Change the password associated with the VNC server. If the new password
    is not supplied, the monitor will prompt for it to be entered. VNC
    passwords are only significant up to 8 letters. eg::

      (qemu) change vnc password
      Password: ********

ERST

    {
        .name       = "screendump",
        .args_type  = "filename:F,device:s?,head:i?",
        .params     = "filename [device [head]]",
        .help       = "save screen from head 'head' of display device 'device' "
                      "into PPM image 'filename'",
        .cmd        = hmp_screendump,
        .coroutine  = true,
    },

SRST
``screendump`` *filename*
  Save screen into PPM image *filename*.
ERST

    {
        .name       = "logfile",
        .args_type  = "filename:F",
        .params     = "filename",
        .help       = "output logs to 'filename'",
        .cmd        = hmp_logfile,
    },

SRST
``logfile`` *filename*
  Output logs to *filename*.
ERST

    {
        .name       = "trace-event",
        .args_type  = "name:s,option:b,vcpu:i?",
        .params     = "name on|off [vcpu]",
        .help       = "changes status of a specific trace event "
                      "(vcpu: vCPU to set, default is all)",
        .cmd = hmp_trace_event,
        .command_completion = trace_event_completion,
    },

SRST
``trace-event``
  changes status of a trace event
ERST

#if defined(CONFIG_TRACE_SIMPLE)
    {
        .name       = "trace-file",
        .args_type  = "op:s?,arg:F?",
        .params     = "on|off|flush|set [arg]",
        .help       = "open, close, or flush trace file, or set a new file name",
        .cmd        = hmp_trace_file,
    },

SRST
``trace-file on|off|flush``
  Open, close, or flush the trace file.  If no argument is given, the
  status of the trace file is displayed.
ERST
#endif

    {
        .name       = "log",
        .args_type  = "items:s",
        .params     = "item1[,...]",
        .help       = "activate logging of the specified items",
        .cmd        = hmp_log,
    },

SRST
``log`` *item1*\ [,...]
  Activate logging of the specified items.
ERST

    {
        .name       = "savevm",
        .args_type  = "name:s?",
        .params     = "tag",
        .help       = "save a VM snapshot. If no tag is provided, a new snapshot is created",
        .cmd        = hmp_savevm,
    },

SRST
``savevm`` *tag*
  Create a snapshot of the whole virtual machine. If *tag* is
  provided, it is used as human readable identifier. If there is already
  a snapshot with the same tag, it is replaced. More info at
  :ref:`vm_005fsnapshots`.

  Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
  only *tag* as parameter.
ERST

    {
        .name       = "loadvm",
        .args_type  = "name:s",
        .params     = "tag",
        .help       = "restore a VM snapshot from its tag",
        .cmd        = hmp_loadvm,
        .command_completion = loadvm_completion,
    },

SRST
``loadvm`` *tag*
  Set the whole virtual machine to the snapshot identified by the tag
  *tag*.

  Since 4.0, loadvm stopped accepting snapshot id as parameter.
ERST

    {
        .name       = "delvm",
        .args_type  = "name:s",
        .params     = "tag",
        .help       = "delete a VM snapshot from its tag",
        .cmd        = hmp_delvm,
        .command_completion = delvm_completion,
    },

SRST
``delvm`` *tag*
  Delete the snapshot identified by *tag*.

  Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
  only *tag* as parameter.
ERST

    {
        .name       = "singlestep",
        .args_type  = "option:s?",
        .params     = "[on|off]",
        .help       = "run emulation in singlestep mode or switch to normal mode",
        .cmd        = hmp_singlestep,
    },

SRST
``singlestep [off]``
  Run the emulation in single step mode.
  If called with option off, the emulation returns to normal mode.
ERST

    {
        .name       = "stop|s",
        .args_type  = "",
        .params     = "",
        .help       = "stop emulation",
        .cmd        = hmp_stop,
    },

SRST
``stop`` or ``s``
  Stop emulation.
ERST

    {
        .name       = "cont|c",
        .args_type  = "",
        .params     = "",
        .help       = "resume emulation",
        .cmd        = hmp_cont,
    },

SRST
``cont`` or ``c``
  Resume emulation.
ERST

    {
        .name       = "system_wakeup",
        .args_type  = "",
        .params     = "",
        .help       = "wakeup guest from suspend",
        .cmd        = hmp_system_wakeup,
    },

SRST
``system_wakeup``
  Wakeup guest from suspend.
ERST

    {
        .name       = "gdbserver",
        .args_type  = "device:s?",
        .params     = "[device]",
        .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
        .cmd        = hmp_gdbserver,
    },

SRST
``gdbserver`` [*port*]
  Start gdbserver session (default *port*\=1234)
ERST

    {
        .name       = "x",
        .args_type  = "fmt:/,addr:l",
        .params     = "/fmt addr",
        .help       = "virtual memory dump starting at 'addr'",
        .cmd        = hmp_memory_dump,
    },

SRST
``x/``\ *fmt* *addr*
  Virtual memory dump starting at *addr*.
ERST

    {
        .name       = "xp",
        .args_type  = "fmt:/,addr:l",
        .params     = "/fmt addr",
        .help       = "physical memory dump starting at 'addr'",
        .cmd        = hmp_physical_memory_dump,
    },

SRST
``xp /``\ *fmt* *addr*
  Physical memory dump starting at *addr*.

  *fmt* is a format which tells the command how to format the
  data. Its syntax is: ``/{count}{format}{size}``

  *count*
    is the number of items to be dumped.
  *format*
    can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
    c (char) or i (asm instruction).
  *size*
    can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
    ``h`` or ``w`` can be specified with the ``i`` format to
    respectively select 16 or 32 bit code instruction size.

  Examples:

  Dump 10 instructions at the current instruction pointer::

    (qemu) x/10i $eip
    0x90107063:  ret
    0x90107064:  sti
    0x90107065:  lea    0x0(%esi,1),%esi
    0x90107069:  lea    0x0(%edi,1),%edi
    0x90107070:  ret
    0x90107071:  jmp    0x90107080
    0x90107073:  nop
    0x90107074:  nop
    0x90107075:  nop
    0x90107076:  nop

  Dump 80 16 bit values at the start of the video memory::

    (qemu) xp/80hx 0xb8000
    0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
    0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
    0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
    0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
    0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
    0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
    0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
    0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
    0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
    0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720

ERST

    {
        .name       = "gpa2hva",
        .args_type  = "addr:l",
        .params     = "addr",
        .help       = "print the host virtual address corresponding to a guest physical address",
        .cmd        = hmp_gpa2hva,
    },

SRST
``gpa2hva`` *addr*
  Print the host virtual address at which the guest's physical address *addr*
  is mapped.
ERST

#ifdef CONFIG_LINUX
    {
        .name       = "gpa2hpa",
        .args_type  = "addr:l",
        .params     = "addr",
        .help       = "print the host physical address corresponding to a guest physical address",
        .cmd        = hmp_gpa2hpa,
    },
#endif

SRST
``gpa2hpa`` *addr*
  Print the host physical address at which the guest's physical address *addr*
  is mapped.
ERST

    {
        .name       = "gva2gpa",
        .args_type  = "addr:l",
        .params     = "addr",
        .help       = "print the guest physical address corresponding to a guest virtual address",
        .cmd        = hmp_gva2gpa,
    },

SRST
``gva2gpa`` *addr*
  Print the guest physical address at which the guest's virtual address *addr*
  is mapped based on the mapping for the current CPU.
ERST

    {
        .name       = "print|p",
        .args_type  = "fmt:/,val:l",
        .params     = "/fmt expr",
        .help       = "print expression value (use $reg for CPU register access)",
        .cmd        = do_print,
    },

SRST
``print`` or ``p/``\ *fmt* *expr*
  Print expression value. Only the *format* part of *fmt* is
  used.
ERST

    {
        .name       = "i",
        .args_type  = "fmt:/,addr:i,index:i.",
        .params     = "/fmt addr",
        .help       = "I/O port read",
        .cmd        = hmp_ioport_read,
    },

SRST
``i/``\ *fmt* *addr* [.\ *index*\ ]
  Read I/O port.
ERST

    {
        .name       = "o",
        .args_type  = "fmt:/,addr:i,val:i",
        .params     = "/fmt addr value",
        .help       = "I/O port write",
        .cmd        = hmp_ioport_write,
    },

SRST
``o/``\ *fmt* *addr* *val*
  Write to I/O port.
ERST

    {
        .name       = "sendkey",
        .args_type  = "keys:s,hold-time:i?",
        .params     = "keys [hold_ms]",
        .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
        .cmd        = hmp_sendkey,
        .command_completion = sendkey_completion,
    },

SRST
``sendkey`` *keys*
  Send *keys* to the guest. *keys* could be the name of the
  key or the raw value in hexadecimal format. Use ``-`` to press
  several keys simultaneously. Example::

    sendkey ctrl-alt-f1

  This command is useful to send keys that your graphical user interface
  intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
ERST
    {
        .name       = "sync-profile",
        .args_type  = "op:s?",
        .params     = "[on|off|reset]",
        .help       = "enable, disable or reset synchronization profiling. "
                      "With no arguments, prints whether profiling is on or off.",
        .cmd        = hmp_sync_profile,
    },

SRST
``sync-profile [on|off|reset]``
  Enable, disable or reset synchronization profiling. With no arguments, prints
  whether profiling is on or off.
ERST

    {
        .name       = "system_reset",
        .args_type  = "",
        .params     = "",
        .help       = "reset the system",
        .cmd        = hmp_system_reset,
    },

SRST
``system_reset``
  Reset the system.
ERST

    {
        .name       = "system_powerdown",
        .args_type  = "",
        .params     = "",
        .help       = "send system power down event",
        .cmd        = hmp_system_powerdown,
    },

SRST
``system_powerdown``
  Power down the system (if supported).
ERST

    {
        .name       = "sum",
        .args_type  = "start:i,size:i",
        .params     = "addr size",
        .help       = "compute the checksum of a memory region",
        .cmd        = hmp_sum,
    },

SRST
``sum`` *addr* *size*
  Compute the checksum of a memory region.
ERST

    {
        .name       = "device_add",
        .args_type  = "device:O",
        .params     = "driver[,prop=value][,...]",
        .help       = "add device, like -device on the command line",
        .cmd        = hmp_device_add,
        .command_completion = device_add_completion,
    },

SRST
``device_add`` *config*
  Add device.
ERST

    {
        .name       = "device_del",
        .args_type  = "id:s",
        .params     = "device",
        .help       = "remove device",
        .cmd        = hmp_device_del,
        .command_completion = device_del_completion,
    },

SRST
``device_del`` *id*
  Remove device *id*. *id* may be a short ID
  or a QOM object path.
ERST

    {
        .name       = "cpu",
        .args_type  = "index:i",
        .params     = "index",
        .help       = "set the default CPU",
        .cmd        = hmp_cpu,
    },

SRST
``cpu`` *index*
  Set the default CPU.
ERST

    {
        .name       = "mouse_move",
        .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
        .params     = "dx dy [dz]",
        .help       = "send mouse move events",
        .cmd        = hmp_mouse_move,
    },

SRST
``mouse_move`` *dx* *dy* [*dz*]
  Move the active mouse to the specified coordinates *dx* *dy*
  with optional scroll axis *dz*.
ERST

    {
        .name       = "mouse_button",
        .args_type  = "button_state:i",
        .params     = "state",
        .help       = "change mouse button state (1=L, 2=M, 4=R)",
        .cmd        = hmp_mouse_button,
    },

SRST
``mouse_button`` *val*
  Change the active mouse button state *val* (1=L, 2=M, 4=R).
ERST

    {
        .name       = "mouse_set",
        .args_type  = "index:i",
        .params     = "index",
        .help       = "set which mouse device receives events",
        .cmd        = hmp_mouse_set,
    },

SRST
``mouse_set`` *index*
  Set which mouse device receives events at given *index*, index
  can be obtained with::

    info mice

ERST

    {
        .name       = "wavcapture",
        .args_type  = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
        .params     = "path audiodev [frequency [bits [channels]]]",
        .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
        .cmd        = hmp_wavcapture,
    },
SRST
``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
  Capture audio into *filename* from *audiodev*, using sample rate
  *frequency* bits per sample *bits* and number of channels
  *channels*.

  Defaults:

  - Sample rate = 44100 Hz - CD quality
  - Bits = 16
  - Number of channels = 2 - Stereo
ERST

    {
        .name       = "stopcapture",
        .args_type  = "n:i",
        .params     = "capture index",
        .help       = "stop capture",
        .cmd        = hmp_stopcapture,
    },
SRST
``stopcapture`` *index*
  Stop capture with a given *index*, index can be obtained with::

    info capture

ERST

    {
        .name       = "memsave",
        .args_type  = "val:l,size:i,filename:s",
        .params     = "addr size file",
        .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
        .cmd        = hmp_memsave,
    },

SRST
``memsave`` *addr* *size* *file*
  save to disk virtual memory dump starting at *addr* of size *size*.
ERST

    {
        .name       = "pmemsave",
        .args_type  = "val:l,size:i,filename:s",
        .params     = "addr size file",
        .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
        .cmd        = hmp_pmemsave,
    },

SRST
``pmemsave`` *addr* *size* *file*
  save to disk physical memory dump starting at *addr* of size *size*.
ERST

    {
        .name       = "boot_set",
        .args_type  = "bootdevice:s",
        .params     = "bootdevice",
        .help       = "define new values for the boot device list",
        .cmd        = hmp_boot_set,
    },

SRST
``boot_set`` *bootdevicelist*
  Define new values for the boot device list. Those values will override
  the values specified on the command line through the ``-boot`` option.

  The values that can be specified here depend on the machine type, but are
  the same that can be specified in the ``-boot`` command line option.
ERST

    {
        .name       = "nmi",
        .args_type  = "",
        .params     = "",
        .help       = "inject an NMI",
        .cmd        = hmp_nmi,
    },
SRST
``nmi`` *cpu*
  Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
ERST

    {
        .name       = "ringbuf_write",
        .args_type  = "device:s,data:s",
        .params     = "device data",
        .help       = "Write to a ring buffer character device",
        .cmd        = hmp_ringbuf_write,
        .command_completion = ringbuf_write_completion,
    },

SRST
``ringbuf_write`` *device* *data*
  Write *data* to ring buffer character device *device*.
  *data* must be a UTF-8 string.
ERST

    {
        .name       = "ringbuf_read",
        .args_type  = "device:s,size:i",
        .params     = "device size",
        .help       = "Read from a ring buffer character device",
        .cmd        = hmp_ringbuf_read,
        .command_completion = ringbuf_write_completion,
    },

SRST
``ringbuf_read`` *device*
  Read and print up to *size* bytes from ring buffer character
  device *device*.
  Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
  character code in hexadecimal.  Character ``\`` is printed ``\\``.
  Bug: can screw up when the buffer contains invalid UTF-8 sequences,
  NUL characters, after the ring buffer lost data, and when reading
  stops because the size limit is reached.
ERST

    {
        .name       = "announce_self",
        .args_type  = "interfaces:s?,id:s?",
        .params     = "[interfaces] [id]",
        .help       = "Trigger GARP/RARP announcements",
        .cmd        = hmp_announce_self,
    },

SRST
``announce_self``
  Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
  updating the network infrastructure after a reconfiguration or some forms
  of migration. The timings of the round are set by the migration announce
  parameters. An optional comma separated *interfaces* list restricts the
  announce to the named set of interfaces. An optional *id* can be used to
  start a separate announce timer and to change the parameters of it later.
ERST

    {
        .name       = "migrate",
        .args_type  = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
        .params     = "[-d] [-b] [-i] [-r] uri",
        .help       = "migrate to URI (using -d to not wait for completion)"
		      "\n\t\t\t -b for migration without shared storage with"
		      " full copy of disk\n\t\t\t -i for migration without "
		      "shared storage with incremental copy of disk "
		      "(base image shared between src and destination)"
                      "\n\t\t\t -r to resume a paused migration",
        .cmd        = hmp_migrate,
    },


SRST
``migrate [-d] [-b] [-i]`` *uri*
  Migrate to *uri* (using -d to not wait for completion).

  ``-b``
    for migration with full copy of disk
  ``-i``
    for migration with incremental copy of disk (base image is shared)
ERST

    {
        .name       = "migrate_cancel",
        .args_type  = "",
        .params     = "",
        .help       = "cancel the current VM migration",
        .cmd        = hmp_migrate_cancel,
    },

SRST
``migrate_cancel``
  Cancel the current VM migration.
ERST

    {
        .name       = "migrate_continue",
        .args_type  = "state:s",
        .params     = "state",
        .help       = "Continue migration from the given paused state",
        .cmd        = hmp_migrate_continue,
    },
SRST
``migrate_continue`` *state*
  Continue migration from the paused state *state*
ERST

    {
        .name       = "migrate_incoming",
        .args_type  = "uri:s",
        .params     = "uri",
        .help       = "Continue an incoming migration from an -incoming defer",
        .cmd        = hmp_migrate_incoming,
    },

SRST
``migrate_incoming`` *uri*
  Continue an incoming migration using the *uri* (that has the same syntax
  as the ``-incoming`` option).
ERST

    {
        .name       = "migrate_recover",
        .args_type  = "uri:s",
        .params     = "uri",
        .help       = "Continue a paused incoming postcopy migration",
        .cmd        = hmp_migrate_recover,
    },

SRST
``migrate_recover`` *uri*
  Continue a paused incoming postcopy migration using the *uri*.
ERST

    {
        .name       = "migrate_pause",
        .args_type  = "",
        .params     = "",
        .help       = "Pause an ongoing migration (postcopy-only)",
        .cmd        = hmp_migrate_pause,
    },

SRST
``migrate_pause``
  Pause an ongoing migration.  Currently it only supports postcopy.
ERST

    {
        .name       = "migrate_set_capability",
        .args_type  = "capability:s,state:b",
        .params     = "capability state",
        .help       = "Enable/Disable the usage of a capability for migration",
        .cmd        = hmp_migrate_set_capability,
        .command_completion = migrate_set_capability_completion,
    },

SRST
``migrate_set_capability`` *capability* *state*
  Enable/Disable the usage of a capability *capability* for migration.
ERST

    {
        .name       = "migrate_set_parameter",
        .args_type  = "parameter:s,value:s",
        .params     = "parameter value",
        .help       = "Set the parameter for migration",
        .cmd        = hmp_migrate_set_parameter,
        .command_completion = migrate_set_parameter_completion,
    },

SRST
``migrate_set_parameter`` *parameter* *value*
  Set the parameter *parameter* for migration.
ERST

    {
        .name       = "migrate_start_postcopy",
        .args_type  = "",
        .params     = "",
        .help       = "Followup to a migration command to switch the migration"
                      " to postcopy mode. The postcopy-ram capability must "
                      "be set on both source and destination before the "
                      "original migration command .",
        .cmd        = hmp_migrate_start_postcopy,
    },

SRST
``migrate_start_postcopy``
  Switch in-progress migration to postcopy mode. Ignored after the end of
  migration (or once already in postcopy).
ERST

    {
        .name       = "x_colo_lost_heartbeat",
        .args_type  = "",
        .params     = "",
        .help       = "Tell COLO that heartbeat is lost,\n\t\t\t"
                      "a failover or takeover is needed.",
        .cmd = hmp_x_colo_lost_heartbeat,
    },

SRST
``x_colo_lost_heartbeat``
  Tell COLO that heartbeat is lost, a failover or takeover is needed.
ERST

    {
        .name       = "client_migrate_info",
        .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
        .params     = "protocol hostname port tls-port cert-subject",
        .help       = "set migration information for remote display",
        .cmd        = hmp_client_migrate_info,
    },

SRST
``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
  Set migration information for remote display.  This makes the server
  ask the client to automatically reconnect using the new parameters
  once migration finished successfully.  Only implemented for SPICE.
ERST

    {
        .name       = "dump-guest-memory",
        .args_type  = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
        .params     = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
        .help       = "dump guest memory into file 'filename'.\n\t\t\t"
                      "-p: do paging to get guest's memory mapping.\n\t\t\t"
                      "-d: return immediately (do not wait for completion).\n\t\t\t"
                      "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
                      "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
                      "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
                      "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
                      "    for Windows x64 guests with vmcoreinfo driver only.\n\t\t\t"
                      "begin: the starting physical address.\n\t\t\t"
                      "length: the memory size, in bytes.",
        .cmd        = hmp_dump_guest_memory,
    },

SRST
``dump-guest-memory [-p]`` *filename* *begin* *length*
  \ 
``dump-guest-memory [-z|-l|-s|-w]`` *filename*
  Dump guest memory to *protocol*. The file can be processed with crash or
  gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.

  ``-p``
    do paging to get guest's memory mapping.
  ``-z``
    dump in kdump-compressed format, with zlib compression.
  ``-l``
    dump in kdump-compressed format, with lzo compression.
  ``-s``
    dump in kdump-compressed format, with snappy compression.
  ``-w``
    dump in Windows crashdump format (can be used instead of ELF-dump converting),
    for Windows x64 guests with vmcoreinfo driver only
  *filename*
    dump file name.
  *begin*
    the starting physical address. It's optional, and should be
    specified together with *length*.
  *length*
    the memory size, in bytes. It's optional, and should be specified
    together with *begin*.

ERST

#if defined(TARGET_S390X)
    {
        .name       = "dump-skeys",
        .args_type  = "filename:F",
        .params     = "",
        .help       = "Save guest storage keys into file 'filename'.\n",
        .cmd        = hmp_dump_skeys,
    },
#endif

SRST
``dump-skeys`` *filename*
  Save guest storage keys to a file.
ERST

#if defined(TARGET_S390X)
    {
        .name       = "migration_mode",
        .args_type  = "mode:i",
        .params     = "mode",
        .help       = "Enables or disables migration mode\n",
        .cmd        = hmp_migrationmode,
    },
#endif

SRST
``migration_mode`` *mode*
  Enables or disables migration mode.
ERST

    {
        .name       = "snapshot_blkdev",
        .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
        .params     = "[-n] device [new-image-file] [format]",
        .help       = "initiates a live snapshot\n\t\t\t"
                      "of device. If a new image file is specified, the\n\t\t\t"
                      "new image file will become the new root image.\n\t\t\t"
                      "If format is specified, the snapshot file will\n\t\t\t"
                      "be created in that format.\n\t\t\t"
                      "The default format is qcow2.  The -n flag requests QEMU\n\t\t\t"
                      "to reuse the image found in new-image-file, instead of\n\t\t\t"
                      "recreating it from scratch.",
        .cmd        = hmp_snapshot_blkdev,
    },

SRST
``snapshot_blkdev``
  Snapshot device, using snapshot file as target if provided
ERST

    {
        .name       = "snapshot_blkdev_internal",
        .args_type  = "device:B,name:s",
        .params     = "device name",
        .help       = "take an internal snapshot of device.\n\t\t\t"
                      "The format of the image used by device must\n\t\t\t"
                      "support it, such as qcow2.\n\t\t\t",
        .cmd        = hmp_snapshot_blkdev_internal,
    },

SRST
``snapshot_blkdev_internal``
  Take an internal snapshot on device if it support
ERST

    {
        .name       = "snapshot_delete_blkdev_internal",
        .args_type  = "device:B,name:s,id:s?",
        .params     = "device name [id]",
        .help       = "delete an internal snapshot of device.\n\t\t\t"
                      "If id is specified, qemu will try delete\n\t\t\t"
                      "the snapshot matching both id and name.\n\t\t\t"
                      "The format of the image used by device must\n\t\t\t"
                      "support it, such as qcow2.\n\t\t\t",
        .cmd        = hmp_snapshot_delete_blkdev_internal,
    },

SRST
``snapshot_delete_blkdev_internal``
  Delete an internal snapshot on device if it support
ERST

    {
        .name       = "drive_mirror",
        .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
        .params     = "[-n] [-f] device target [format]",
        .help       = "initiates live storage\n\t\t\t"
                      "migration for a device. The device's contents are\n\t\t\t"
                      "copied to the new image file, including data that\n\t\t\t"
                      "is written after the command is started.\n\t\t\t"
                      "The -n flag requests QEMU to reuse the image found\n\t\t\t"
                      "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
                      "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
                      "so that the result does not need a backing file.\n\t\t\t",
        .cmd        = hmp_drive_mirror,
    },
SRST
``drive_mirror``
  Start mirroring a block device's writes to a new destination,
  using the specified target.
ERST

    {
        .name       = "drive_backup",
        .args_type  = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
        .params     = "[-n] [-f] [-c] device target [format]",
        .help       = "initiates a point-in-time\n\t\t\t"
                      "copy for a device. The device's contents are\n\t\t\t"
                      "copied to the new image file, excluding data that\n\t\t\t"
                      "is written after the command is started.\n\t\t\t"
                      "The -n flag requests QEMU to reuse the image found\n\t\t\t"
                      "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
                      "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
                      "so that the result does not need a backing file.\n\t\t\t"
                      "The -c flag requests QEMU to compress backup data\n\t\t\t"
                      "(if the target format supports it).\n\t\t\t",
        .cmd        = hmp_drive_backup,
    },
SRST
``drive_backup``
  Start a point-in-time copy of a block device to a specified target.
ERST

    {
        .name       = "drive_add",
        .args_type  = "node:-n,pci_addr:s,opts:s",
        .params     = "[-n] [[<domain>:]<bus>:]<slot>\n"
                      "[file=file][,if=type][,bus=n]\n"
                      "[,unit=m][,media=d][,index=i]\n"
                      "[,snapshot=on|off][,cache=on|off]\n"
                      "[,readonly=on|off][,copy-on-read=on|off]",
        .help       = "add drive to PCI storage controller",
        .cmd        = hmp_drive_add,
    },

SRST
``drive_add``
  Add drive to PCI storage controller.
ERST

    {
        .name       = "pcie_aer_inject_error",
        .args_type  = "advisory_non_fatal:-a,correctable:-c,"
	              "id:s,error_status:s,"
	              "header0:i?,header1:i?,header2:i?,header3:i?,"
	              "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
        .params     = "[-a] [-c] id "
                      "<error_status> [<tlp header> [<tlp header prefix>]]",
        .help       = "inject pcie aer error\n\t\t\t"
	              " -a for advisory non fatal error\n\t\t\t"
	              " -c for correctable error\n\t\t\t"
                      "<id> = qdev device id\n\t\t\t"
                      "<error_status> = error string or 32bit\n\t\t\t"
                      "<tlp header> = 32bit x 4\n\t\t\t"
                      "<tlp header prefix> = 32bit x 4",
        .cmd        = hmp_pcie_aer_inject_error,
    },

SRST
``pcie_aer_inject_error``
  Inject PCIe AER error
ERST

    {
        .name       = "netdev_add",
        .args_type  = "netdev:O",
        .params     = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
        .help       = "add host network device",
        .cmd        = hmp_netdev_add,
        .command_completion = netdev_add_completion,
        .flags      = "p",
    },

SRST
``netdev_add``
  Add host network device.
ERST

    {
        .name       = "netdev_del",
        .args_type  = "id:s",
        .params     = "id",
        .help       = "remove host network device",
        .cmd        = hmp_netdev_del,
        .command_completion = netdev_del_completion,
        .flags      = "p",
    },

SRST
``netdev_del``
  Remove host network device.
ERST

    {
        .name       = "object_add",
        .args_type  = "object:S",
        .params     = "[qom-type=]type,id=str[,prop=value][,...]",
        .help       = "create QOM object",
        .cmd        = hmp_object_add,
        .command_completion = object_add_completion,
        .flags      = "p",
    },

SRST
``object_add``
  Create QOM object.
ERST

    {
        .name       = "object_del",
        .args_type  = "id:s",
        .params     = "id",
        .help       = "destroy QOM object",
        .cmd        = hmp_object_del,
        .command_completion = object_del_completion,
        .flags      = "p",
    },

SRST
``object_del``
  Destroy QOM object.
ERST

#ifdef CONFIG_SLIRP
    {
        .name       = "hostfwd_add",
        .args_type  = "arg1:s,arg2:s?",
        .params     = "[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
        .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
        .cmd        = hmp_hostfwd_add,
    },
#endif
SRST
``hostfwd_add``
  Redirect TCP or UDP connections from host to guest (requires -net user).
ERST

#ifdef CONFIG_SLIRP
    {
        .name       = "hostfwd_remove",
        .args_type  = "arg1:s,arg2:s?",
        .params     = "[netdev_id] [tcp|udp]:[hostaddr]:hostport",
        .help       = "remove host-to-guest TCP or UDP redirection",
        .cmd        = hmp_hostfwd_remove,
    },

#endif
SRST
``hostfwd_remove``
  Remove host-to-guest TCP or UDP redirection.
ERST

    {
        .name       = "balloon",
        .args_type  = "value:M",
        .params     = "target",
        .help       = "request VM to change its memory allocation (in MB)",
        .cmd        = hmp_balloon,
    },

SRST
``balloon`` *value*
  Request VM to change its memory allocation to *value* (in MB).
ERST

    {
        .name       = "set_link",
        .args_type  = "name:s,up:b",
        .params     = "name on|off",
        .help       = "change the link status of a network adapter",
        .cmd        = hmp_set_link,
        .command_completion = set_link_completion,
    },

SRST
``set_link`` *name* ``[on|off]``
  Switch link *name* on (i.e. up) or off (i.e. down).
ERST

    {
        .name       = "watchdog_action",
        .args_type  = "action:s",
        .params     = "[reset|shutdown|poweroff|pause|debug|none]",
        .help       = "change watchdog action",
        .cmd        = hmp_watchdog_action,
        .command_completion = watchdog_action_completion,
    },

SRST
``watchdog_action``
  Change watchdog action.
ERST

    {
        .name       = "nbd_server_start",
        .args_type  = "all:-a,writable:-w,uri:s",
        .params     = "nbd_server_start [-a] [-w] host:port",
        .help       = "serve block devices on the given host and port",
        .cmd        = hmp_nbd_server_start,
    },
SRST
``nbd_server_start`` *host*:*port*
  Start an NBD server on the given host and/or port.  If the ``-a``
  option is included, all of the virtual machine's block devices that
  have an inserted media on them are automatically exported; in this case,
  the ``-w`` option makes the devices writable too.
ERST

    {
        .name       = "nbd_server_add",
        .args_type  = "writable:-w,device:B,name:s?",
        .params     = "nbd_server_add [-w] device [name]",
        .help       = "export a block device via NBD",
        .cmd        = hmp_nbd_server_add,
    },
SRST
``nbd_server_add`` *device* [ *name* ]
  Export a block device through QEMU's NBD server, which must be started
  beforehand with ``nbd_server_start``.  The ``-w`` option makes the
  exported device writable too.  The export name is controlled by *name*,
  defaulting to *device*.
ERST

    {
        .name       = "nbd_server_remove",
        .args_type  = "force:-f,name:s",
        .params     = "nbd_server_remove [-f] name",
        .help       = "remove an export previously exposed via NBD",
        .cmd        = hmp_nbd_server_remove,
    },
SRST
``nbd_server_remove [-f]`` *name*
  Stop exporting a block device through QEMU's NBD server, which was
  previously started with ``nbd_server_add``.  The ``-f``
  option forces the server to drop the export immediately even if
  clients are connected; otherwise the command fails unless there are no
  clients.
ERST

    {
        .name       = "nbd_server_stop",
        .args_type  = "",
        .params     = "nbd_server_stop",
        .help       = "stop serving block devices using the NBD protocol",
        .cmd        = hmp_nbd_server_stop,
    },
SRST
``nbd_server_stop``
  Stop the QEMU embedded NBD server.
ERST


#if defined(TARGET_I386)

    {
        .name       = "mce",
        .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
        .params     = "[-b] cpu bank status mcgstatus addr misc",
        .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
        .cmd        = hmp_mce,
    },

#endif
SRST
``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
  Inject an MCE on the given CPU (x86 only).
ERST

    {
        .name       = "getfd",
        .args_type  = "fdname:s",
        .params     = "getfd name",
        .help       = "receive a file descriptor via SCM rights and assign it a name",
        .cmd        = hmp_getfd,
    },

SRST
``getfd`` *fdname*
  If a file descriptor is passed alongside this command using the SCM_RIGHTS
  mechanism on unix sockets, it is stored using the name *fdname* for
  later use by other monitor commands.
ERST

    {
        .name       = "closefd",
        .args_type  = "fdname:s",
        .params     = "closefd name",
        .help       = "close a file descriptor previously passed via SCM rights",
        .cmd        = hmp_closefd,
    },

SRST
``closefd`` *fdname*
  Close the file descriptor previously assigned to *fdname* using the
  ``getfd`` command. This is only needed if the file descriptor was never
  used by another monitor command.
ERST

    {
        .name       = "block_set_io_throttle",
        .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
        .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
        .help       = "change I/O throttle limits for a block drive",
        .cmd        = hmp_block_set_io_throttle,
    },

SRST
``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
  Change I/O throttle limits for a block drive to
  *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
  *device* can be a block device name, a qdev ID or a QOM path.
ERST

    {
        .name       = "set_password",
        .args_type  = "protocol:s,password:s,connected:s?",
        .params     = "protocol password action-if-connected",
        .help       = "set spice/vnc password",
        .cmd        = hmp_set_password,
    },

SRST
``set_password [ vnc | spice ] password [ action-if-connected ]``
  Change spice/vnc password.  *action-if-connected* specifies what
  should happen in case a connection is established: *fail* makes the
  password change fail.  *disconnect* changes the password and
  disconnects the client.  *keep* changes the password and keeps the
  connection up.  *keep* is the default.
ERST

    {
        .name       = "expire_password",
        .args_type  = "protocol:s,time:s",
        .params     = "protocol time",
        .help       = "set spice/vnc password expire-time",
        .cmd        = hmp_expire_password,
    },

SRST
``expire_password [ vnc | spice ]`` *expire-time*
  Specify when a password for spice/vnc becomes
  invalid. *expire-time* accepts:

  ``now``
    Invalidate password instantly.
  ``never``
    Password stays valid forever.
  ``+``\ *nsec*
    Password stays valid for *nsec* seconds starting now.
  *nsec*
    Password is invalidated at the given time.  *nsec* are the seconds
    passed since 1970, i.e. unix epoch.

ERST

    {
        .name       = "chardev-add",
        .args_type  = "args:s",
        .params     = "args",
        .help       = "add chardev",
        .cmd        = hmp_chardev_add,
        .command_completion = chardev_add_completion,
    },

SRST
``chardev-add`` *args*
  chardev-add accepts the same parameters as the -chardev command line switch.
ERST

    {
        .name       = "chardev-change",
        .args_type  = "id:s,args:s",
        .params     = "id args",
        .help       = "change chardev",
        .cmd        = hmp_chardev_change,
    },

SRST
``chardev-change`` *args*
  chardev-change accepts existing chardev *id* and then the same arguments
  as the -chardev command line switch (except for "id").
ERST

    {
        .name       = "chardev-remove",
        .args_type  = "id:s",
        .params     = "id",
        .help       = "remove chardev",
        .cmd        = hmp_chardev_remove,
        .command_completion = chardev_remove_completion,
    },

SRST
``chardev-remove`` *id*
  Removes the chardev *id*.
ERST

    {
        .name       = "chardev-send-break",
        .args_type  = "id:s",
        .params     = "id",
        .help       = "send a break on chardev",
        .cmd        = hmp_chardev_send_break,
        .command_completion = chardev_remove_completion,
    },

SRST
``chardev-send-break`` *id*
  Send a break on the chardev *id*.
ERST

    {
        .name       = "qemu-io",
        .args_type  = "qdev:-d,device:B,command:s",
        .params     = "[-d] [device] \"[command]\"",
        .help       = "run a qemu-io command on a block device\n\t\t\t"
                      "-d: [device] is a device ID rather than a "
                      "drive ID or node name",
        .cmd        = hmp_qemu_io,
    },

SRST
``qemu-io`` *device* *command*
  Executes a qemu-io command on the given block device.
ERST

    {
        .name       = "qom-list",
        .args_type  = "path:s?",
        .params     = "path",
        .help       = "list QOM properties",
        .cmd        = hmp_qom_list,
        .flags      = "p",
    },

SRST
``qom-list`` [*path*]
  Print QOM properties of object at location *path*
ERST

    {
        .name       = "qom-get",
        .args_type  = "path:s,property:s",
        .params     = "path property",
        .help       = "print QOM property",
        .cmd        = hmp_qom_get,
        .flags      = "p",
    },

SRST
``qom-get`` *path* *property*
  Print QOM property *property* of object at location *path*
ERST

    {
        .name       = "qom-set",
        .args_type  = "json:-j,path:s,property:s,value:S",
        .params     = "[-j] path property value",
        .help       = "set QOM property.\n\t\t\t"
                      "-j: the value is specified in json format.",
        .cmd        = hmp_qom_set,
        .flags      = "p",
    },

SRST
``qom-set`` *path* *property* *value*
  Set QOM property *property* of object at location *path* to value *value*
ERST

    {
        .name       = "replay_break",
        .args_type  = "icount:l",
        .params     = "icount",
        .help       = "set breakpoint at the specified instruction count",
        .cmd        = hmp_replay_break,
    },

SRST
``replay_break`` *icount*
  Set replay breakpoint at instruction count *icount*.
  Execution stops when the specified instruction is reached.
  There can be at most one breakpoint. When breakpoint is set, any prior
  one is removed.  The breakpoint may be set only in replay mode and only
  "in the future", i.e. at instruction counts greater than the current one.
  The current instruction count can be observed with ``info replay``.
ERST

    {
        .name       = "replay_delete_break",
        .args_type  = "",
        .params     = "",
        .help       = "remove replay breakpoint",
        .cmd        = hmp_replay_delete_break,
    },

SRST
``replay_delete_break``
  Remove replay breakpoint which was previously set with ``replay_break``.
  The command is ignored when there are no replay breakpoints.
ERST

    {
        .name       = "replay_seek",
        .args_type  = "icount:l",
        .params     = "icount",
        .help       = "replay execution to the specified instruction count",
        .cmd        = hmp_replay_seek,
    },

SRST
``replay_seek`` *icount*
  Automatically proceed to the instruction count *icount*, when
  replaying the execution. The command automatically loads nearest
  snapshot and replays the execution to find the desired instruction.
  When there is no preceding snapshot or the execution is not replayed,
  then the command fails.
  *icount* for the reference may be observed with ``info replay`` command.
ERST

    {
        .name       = "info",
        .args_type  = "item:s?",
        .params     = "[subcommand]",
        .help       = "show various information about the system state",
        .cmd        = hmp_info_help,
        .sub_table  = hmp_info_cmds,
        .flags      = "p",
    },

SRST
``calc_dirty_rate`` *second*
  Start a round of dirty rate measurement with the period specified in *second*.
  The result of the dirty rate measurement may be observed with ``info
  dirty_rate`` command.
ERST

    {
        .name       = "calc_dirty_rate",
        .args_type  = "dirty_ring:-r,dirty_bitmap:-b,second:l,sample_pages_per_GB:l?",
        .params     = "[-r] [-b] second [sample_pages_per_GB]",
        .help       = "start a round of guest dirty rate measurement (using -r to"
                      "\n\t\t\t specify dirty ring as the method of calculation and"
                      "\n\t\t\t -b to specify dirty bitmap as method of calculation)",
        .cmd        = hmp_calc_dirty_rate,
    },