qapi/char.json

   1 # -*- Mode: Python -*-
   2 # vim: filetype=python
   3 #
   4
   5 ##
   6 # = Character devices
   7 ##
   8
   9 { 'include': 'sockets.json' }
  10
  11 ##
  12 # @ChardevInfo:
  13 #
  14 # Information about a character device.
  15 #
  16 # @label: the label of the character device
  17 #
  18 # @filename: the filename of the character device
  19 #
  20 # @frontend-open: shows whether the frontend device attached to this
  21 #     backend (e.g. with the chardev=... option) is in open or closed
  22 #     state (since 2.1)
  23 #
  24 # Notes: @filename is encoded using the QEMU command line character
  25 #     device encoding.  See the QEMU man page for details.
  26 #
  27 # Since: 0.14
  28 ##
  29 { 'struct': 'ChardevInfo',
  30   'data': { 'label': 'str',
  31             'filename': 'str',
  32             'frontend-open': 'bool' } }
  33
  34 ##
  35 # @query-chardev:
  36 #
  37 # Returns information about current character devices.
  38 #
  39 # Returns: a list of @ChardevInfo
  40 #
  41 # Since: 0.14
  42 #
  43 # Example:
  44 #
  45 # -> { "execute": "query-chardev" }
  46 # <- {
  47 #       "return": [
  48 #          {
  49 #             "label": "charchannel0",
  50 #             "filename": "unix:/var/lib/libvirt/qemu/seabios.rhel6.agent,server=on",
  51 #             "frontend-open": false
  52 #          },
  53 #          {
  54 #             "label": "charmonitor",
  55 #             "filename": "unix:/var/lib/libvirt/qemu/seabios.rhel6.monitor,server=on",
  56 #             "frontend-open": true
  57 #          },
  58 #          {
  59 #             "label": "charserial0",
  60 #             "filename": "pty:/dev/pts/2",
  61 #             "frontend-open": true
  62 #          }
  63 #       ]
  64 #    }
  65 ##
  66 { 'command': 'query-chardev', 'returns': ['ChardevInfo'],
  67   'allow-preconfig': true }
  68
  69 ##
  70 # @ChardevBackendInfo:
  71 #
  72 # Information about a character device backend
  73 #
  74 # @name: The backend name
  75 #
  76 # Since: 2.0
  77 ##
  78 { 'struct': 'ChardevBackendInfo', 'data': {'name': 'str'} }
  79
  80 ##
  81 # @query-chardev-backends:
  82 #
  83 # Returns information about character device backends.
  84 #
  85 # Returns: a list of @ChardevBackendInfo
  86 #
  87 # Since: 2.0
  88 #
  89 # Example:
  90 #
  91 # -> { "execute": "query-chardev-backends" }
  92 # <- {
  93 #       "return":[
  94 #          {
  95 #             "name":"udp"
  96 #          },
  97 #          {
  98 #             "name":"tcp"
  99 #          },
 100 #          {
 101 #             "name":"unix"
 102 #          },
 103 #          {
 104 #             "name":"spiceport"
 105 #          }
 106 #       ]
 107 #    }
 108 ##
 109 { 'command': 'query-chardev-backends', 'returns': ['ChardevBackendInfo'] }
 110
 111 ##
 112 # @DataFormat:
 113 #
 114 # An enumeration of data format.
 115 #
 116 # @utf8: Data is a UTF-8 string (RFC 3629)
 117 #
 118 # @base64: Data is Base64 encoded binary (RFC 3548)
 119 #
 120 # Since: 1.4
 121 ##
 122 { 'enum': 'DataFormat',
 123   'data': [ 'utf8', 'base64' ] }
 124
 125 ##
 126 # @ringbuf-write:
 127 #
 128 # Write to a ring buffer character device.
 129 #
 130 # @device: the ring buffer character device name
 131 #
 132 # @data: data to write
 133 #
 134 # @format: data encoding (default 'utf8').
 135 #
 136 #     - base64: data must be base64 encoded text.  Its binary decoding
 137 #       gets written.
 138 #     - utf8: data's UTF-8 encoding is written
 139 #     - data itself is always Unicode regardless of format, like any
 140 #       other string.
 141 #
 142 # Returns: Nothing on success
 143 #
 144 # Since: 1.4
 145 #
 146 # Example:
 147 #
 148 # -> { "execute": "ringbuf-write",
 149 #      "arguments": { "device": "foo",
 150 #                     "data": "abcdefgh",
 151 #                     "format": "utf8" } }
 152 # <- { "return": {} }
 153 ##
 154 { 'command': 'ringbuf-write',
 155   'data': { 'device': 'str',
 156             'data': 'str',
 157            '*format': 'DataFormat'} }
 158
 159 ##
 160 # @ringbuf-read:
 161 #
 162 # Read from a ring buffer character device.
 163 #
 164 # @device: the ring buffer character device name
 165 #
 166 # @size: how many bytes to read at most
 167 #
 168 # @format: data encoding (default 'utf8').
 169 #
 170 #     - base64: the data read is returned in base64 encoding.
 171 #     - utf8: the data read is interpreted as UTF-8.
 172 #       Bug: can screw up when the buffer contains invalid UTF-8
 173 #       sequences, NUL characters, after the ring buffer lost data,
 174 #       and when reading stops because the size limit is reached.
 175 #     - The return value is always Unicode regardless of format, like
 176 #       any other string.
 177 #
 178 # Returns: data read from the device
 179 #
 180 # Since: 1.4
 181 #
 182 # Example:
 183 #
 184 # -> { "execute": "ringbuf-read",
 185 #      "arguments": { "device": "foo",
 186 #                     "size": 1000,
 187 #                     "format": "utf8" } }
 188 # <- { "return": "abcdefgh" }
 189 ##
 190 { 'command': 'ringbuf-read',
 191   'data': {'device': 'str', 'size': 'int', '*format': 'DataFormat'},
 192   'returns': 'str' }
 193
 194 ##
 195 # @ChardevCommon:
 196 #
 197 # Configuration shared across all chardev backends
 198 #
 199 # @logfile: The name of a logfile to save output
 200 #
 201 # @logappend: true to append instead of truncate (default to false to
 202 #     truncate)
 203 #
 204 # Since: 2.6
 205 ##
 206 { 'struct': 'ChardevCommon',
 207   'data': { '*logfile': 'str',
 208             '*logappend': 'bool' } }
 209
 210 ##
 211 # @ChardevFile:
 212 #
 213 # Configuration info for file chardevs.
 214 #
 215 # @in: The name of the input file
 216 #
 217 # @out: The name of the output file
 218 #
 219 # @append: Open the file in append mode (default false to truncate)
 220 #     (Since 2.6)
 221 #
 222 # Since: 1.4
 223 ##
 224 { 'struct': 'ChardevFile',
 225   'data': { '*in': 'str',
 226             'out': 'str',
 227             '*append': 'bool' },
 228   'base': 'ChardevCommon' }
 229
 230 ##
 231 # @ChardevHostdev:
 232 #
 233 # Configuration info for device and pipe chardevs.
 234 #
 235 # @device: The name of the special file for the device, i.e.
 236 #     /dev/ttyS0 on Unix or COM1: on Windows
 237 #
 238 # Since: 1.4
 239 ##
 240 { 'struct': 'ChardevHostdev',
 241   'data': { 'device': 'str' },
 242   'base': 'ChardevCommon' }
 243
 244 ##
 245 # @ChardevSocket:
 246 #
 247 # Configuration info for (stream) socket chardevs.
 248 #
 249 # @addr: socket address to listen on (server=true) or connect to
 250 #     (server=false)
 251 #
 252 # @tls-creds: the ID of the TLS credentials object (since 2.6)
 253 #
 254 # @tls-authz: the ID of the QAuthZ authorization object against which
 255 #     the client's x509 distinguished name will be validated.  This
 256 #     object is only resolved at time of use, so can be deleted and
 257 #     recreated on the fly while the chardev server is active.  If
 258 #     missing, it will default to denying access (since 4.0)
 259 #
 260 # @server: create server socket (default: true)
 261 #
 262 # @wait: wait for incoming connection on server sockets (default:
 263 #     false). Silently ignored with server: false.  This use is
 264 #     deprecated.
 265 #
 266 # @nodelay: set TCP_NODELAY socket option (default: false)
 267 #
 268 # @telnet: enable telnet protocol on server sockets (default: false)
 269 #
 270 # @tn3270: enable tn3270 protocol on server sockets (default: false)
 271 #     (Since: 2.10)
 272 #
 273 # @websocket: enable websocket protocol on server sockets
 274 #     (default: false) (Since: 3.1)
 275 #
 276 # @reconnect: For a client socket, if a socket is disconnected, then
 277 #     attempt a reconnect after the given number of seconds.  Setting
 278 #     this to zero disables this function.  (default: 0) (Since: 2.2)
 279 #
 280 # Since: 1.4
 281 ##
 282 { 'struct': 'ChardevSocket',
 283   'data': { 'addr': 'SocketAddressLegacy',
 284             '*tls-creds': 'str',
 285             '*tls-authz'  : 'str',
 286             '*server': 'bool',
 287             '*wait': 'bool',
 288             '*nodelay': 'bool',
 289             '*telnet': 'bool',
 290             '*tn3270': 'bool',
 291             '*websocket': 'bool',
 292             '*reconnect': 'int' },
 293   'base': 'ChardevCommon' }
 294
 295 ##
 296 # @ChardevUdp:
 297 #
 298 # Configuration info for datagram socket chardevs.
 299 #
 300 # @remote: remote address
 301 #
 302 # @local: local address
 303 #
 304 # Since: 1.5
 305 ##
 306 { 'struct': 'ChardevUdp',
 307   'data': { 'remote': 'SocketAddressLegacy',
 308             '*local': 'SocketAddressLegacy' },
 309   'base': 'ChardevCommon' }
 310
 311 ##
 312 # @ChardevMux:
 313 #
 314 # Configuration info for mux chardevs.
 315 #
 316 # @chardev: name of the base chardev.
 317 #
 318 # Since: 1.5
 319 ##
 320 { 'struct': 'ChardevMux',
 321   'data': { 'chardev': 'str' },
 322   'base': 'ChardevCommon' }
 323
 324 ##
 325 # @ChardevStdio:
 326 #
 327 # Configuration info for stdio chardevs.
 328 #
 329 # @signal: Allow signals (such as SIGINT triggered by ^C) be delivered
 330 #     to qemu.  Default: true.
 331 #
 332 # Since: 1.5
 333 ##
 334 { 'struct': 'ChardevStdio',
 335   'data': { '*signal': 'bool' },
 336   'base': 'ChardevCommon' }
 337
 338 ##
 339 # @ChardevSpiceChannel:
 340 #
 341 # Configuration info for spice vm channel chardevs.
 342 #
 343 # @type: kind of channel (for example vdagent).
 344 #
 345 # Since: 1.5
 346 ##
 347 { 'struct': 'ChardevSpiceChannel',
 348   'data': { 'type': 'str' },
 349   'base': 'ChardevCommon',
 350   'if': 'CONFIG_SPICE' }
 351
 352 ##
 353 # @ChardevSpicePort:
 354 #
 355 # Configuration info for spice port chardevs.
 356 #
 357 # @fqdn: name of the channel (see docs/spice-port-fqdn.txt)
 358 #
 359 # Since: 1.5
 360 ##
 361 { 'struct': 'ChardevSpicePort',
 362   'data': { 'fqdn': 'str' },
 363   'base': 'ChardevCommon',
 364   'if': 'CONFIG_SPICE' }
 365
 366 ##
 367 # @ChardevDBus:
 368 #
 369 # Configuration info for DBus chardevs.
 370 #
 371 # @name: name of the channel (following docs/spice-port-fqdn.txt)
 372 #
 373 # Since: 7.0
 374 ##
 375 { 'struct': 'ChardevDBus',
 376   'data': { 'name': 'str' },
 377   'base': 'ChardevCommon',
 378   'if': 'CONFIG_DBUS_DISPLAY' }
 379
 380 ##
 381 # @ChardevVC:
 382 #
 383 # Configuration info for virtual console chardevs.
 384 #
 385 # @width: console width, in pixels
 386 #
 387 # @height: console height, in pixels
 388 #
 389 # @cols: console width, in chars
 390 #
 391 # @rows: console height, in chars
 392 #
 393 # Note: the options are only effective when the VNC or SDL graphical
 394 # display backend is active. They are ignored with the GTK, Spice, VNC
 395 # and D-Bus display backends.
 396 #
 397 # Since: 1.5
 398 ##
 399 { 'struct': 'ChardevVC',
 400   'data': { '*width': 'int',
 401             '*height': 'int',
 402             '*cols': 'int',
 403             '*rows': 'int' },
 404   'base': 'ChardevCommon' }
 405
 406 ##
 407 # @ChardevRingbuf:
 408 #
 409 # Configuration info for ring buffer chardevs.
 410 #
 411 # @size: ring buffer size, must be power of two, default is 65536
 412 #
 413 # Since: 1.5
 414 ##
 415 { 'struct': 'ChardevRingbuf',
 416   'data': { '*size': 'int' },
 417   'base': 'ChardevCommon' }
 418
 419 ##
 420 # @ChardevQemuVDAgent:
 421 #
 422 # Configuration info for qemu vdagent implementation.
 423 #
 424 # @mouse: enable/disable mouse, default is enabled.
 425 #
 426 # @clipboard: enable/disable clipboard, default is disabled.
 427 #
 428 # Since: 6.1
 429 ##
 430 { 'struct': 'ChardevQemuVDAgent',
 431   'data': { '*mouse': 'bool',
 432             '*clipboard': 'bool' },
 433   'base': 'ChardevCommon',
 434   'if': 'CONFIG_SPICE_PROTOCOL' }
 435
 436 ##
 437 # @ChardevBackendKind:
 438 #
 439 # @pipe: Since 1.5
 440 #
 441 # @udp: Since 1.5
 442 #
 443 # @mux: Since 1.5
 444 #
 445 # @msmouse: Since 1.5
 446 #
 447 # @wctablet: Since 2.9
 448 #
 449 # @braille: Since 1.5
 450 #
 451 # @testdev: Since 2.2
 452 #
 453 # @stdio: Since 1.5
 454 #
 455 # @console: Since 1.5
 456 #
 457 # @spicevmc: Since 1.5
 458 #
 459 # @spiceport: Since 1.5
 460 #
 461 # @qemu-vdagent: Since 6.1
 462 #
 463 # @dbus: Since 7.0
 464 #
 465 # @vc: v1.5
 466 #
 467 # @ringbuf: Since 1.6
 468 #
 469 # @memory: Since 1.5
 470 #
 471 # Since: 1.4
 472 ##
 473 { 'enum': 'ChardevBackendKind',
 474   'data': [ 'file',
 475             'serial',
 476             'parallel',
 477             'pipe',
 478             'socket',
 479             'udp',
 480             'pty',
 481             'null',
 482             'mux',
 483             'msmouse',
 484             'wctablet',
 485             'braille',
 486             'testdev',
 487             'stdio',
 488             'console',
 489             { 'name': 'spicevmc', 'if': 'CONFIG_SPICE' },
 490             { 'name': 'spiceport', 'if': 'CONFIG_SPICE' },
 491             { 'name': 'qemu-vdagent', 'if': 'CONFIG_SPICE_PROTOCOL' },
 492             { 'name': 'dbus', 'if': 'CONFIG_DBUS_DISPLAY' },
 493             'vc',
 494             'ringbuf',
 495             # next one is just for compatibility
 496             'memory' ] }
 497
 498 ##
 499 # @ChardevFileWrapper:
 500 #
 501 # Since: 1.4
 502 ##
 503 { 'struct': 'ChardevFileWrapper',
 504   'data': { 'data': 'ChardevFile' } }
 505
 506 ##
 507 # @ChardevHostdevWrapper:
 508 #
 509 # Since: 1.4
 510 ##
 511 { 'struct': 'ChardevHostdevWrapper',
 512   'data': { 'data': 'ChardevHostdev' } }
 513
 514 ##
 515 # @ChardevSocketWrapper:
 516 #
 517 # Since: 1.4
 518 ##
 519 { 'struct': 'ChardevSocketWrapper',
 520   'data': { 'data': 'ChardevSocket' } }
 521
 522 ##
 523 # @ChardevUdpWrapper:
 524 #
 525 # Since: 1.5
 526 ##
 527 { 'struct': 'ChardevUdpWrapper',
 528   'data': { 'data': 'ChardevUdp' } }
 529
 530 ##
 531 # @ChardevCommonWrapper:
 532 #
 533 # Since: 2.6
 534 ##
 535 { 'struct': 'ChardevCommonWrapper',
 536   'data': { 'data': 'ChardevCommon' } }
 537
 538 ##
 539 # @ChardevMuxWrapper:
 540 #
 541 # Since: 1.5
 542 ##
 543 { 'struct': 'ChardevMuxWrapper',
 544   'data': { 'data': 'ChardevMux' } }
 545
 546 ##
 547 # @ChardevStdioWrapper:
 548 #
 549 # Since: 1.5
 550 ##
 551 { 'struct': 'ChardevStdioWrapper',
 552   'data': { 'data': 'ChardevStdio' } }
 553
 554 ##
 555 # @ChardevSpiceChannelWrapper:
 556 #
 557 # Since: 1.5
 558 ##
 559 { 'struct': 'ChardevSpiceChannelWrapper',
 560   'data': { 'data': 'ChardevSpiceChannel' },
 561   'if': 'CONFIG_SPICE' }
 562
 563 ##
 564 # @ChardevSpicePortWrapper:
 565 #
 566 # Since: 1.5
 567 ##
 568 { 'struct': 'ChardevSpicePortWrapper',
 569   'data': { 'data': 'ChardevSpicePort' },
 570   'if': 'CONFIG_SPICE' }
 571
 572 ##
 573 # @ChardevQemuVDAgentWrapper:
 574 #
 575 # Since: 6.1
 576 ##
 577 { 'struct': 'ChardevQemuVDAgentWrapper',
 578   'data': { 'data': 'ChardevQemuVDAgent' },
 579   'if': 'CONFIG_SPICE_PROTOCOL' }
 580
 581 ##
 582 # @ChardevDBusWrapper:
 583 #
 584 # Since: 7.0
 585 ##
 586 { 'struct': 'ChardevDBusWrapper',
 587   'data': { 'data': 'ChardevDBus' },
 588   'if': 'CONFIG_DBUS_DISPLAY' }
 589
 590 ##
 591 # @ChardevVCWrapper:
 592 #
 593 # Since: 1.5
 594 ##
 595 { 'struct': 'ChardevVCWrapper',
 596   'data': { 'data': 'ChardevVC' } }
 597
 598 ##
 599 # @ChardevRingbufWrapper:
 600 #
 601 # Since: 1.5
 602 ##
 603 { 'struct': 'ChardevRingbufWrapper',
 604   'data': { 'data': 'ChardevRingbuf' } }
 605
 606 ##
 607 # @ChardevBackend:
 608 #
 609 # Configuration info for the new chardev backend.
 610 #
 611 # Since: 1.4
 612 ##
 613 { 'union': 'ChardevBackend',
 614   'base': { 'type': 'ChardevBackendKind' },
 615   'discriminator': 'type',
 616   'data': { 'file': 'ChardevFileWrapper',
 617             'serial': 'ChardevHostdevWrapper',
 618             'parallel': 'ChardevHostdevWrapper',
 619             'pipe': 'ChardevHostdevWrapper',
 620             'socket': 'ChardevSocketWrapper',
 621             'udp': 'ChardevUdpWrapper',
 622             'pty': 'ChardevCommonWrapper',
 623             'null': 'ChardevCommonWrapper',
 624             'mux': 'ChardevMuxWrapper',
 625             'msmouse': 'ChardevCommonWrapper',
 626             'wctablet': 'ChardevCommonWrapper',
 627             'braille': 'ChardevCommonWrapper',
 628             'testdev': 'ChardevCommonWrapper',
 629             'stdio': 'ChardevStdioWrapper',
 630             'console': 'ChardevCommonWrapper',
 631             'spicevmc': { 'type': 'ChardevSpiceChannelWrapper',
 632                           'if': 'CONFIG_SPICE' },
 633             'spiceport': { 'type': 'ChardevSpicePortWrapper',
 634                            'if': 'CONFIG_SPICE' },
 635             'qemu-vdagent': { 'type': 'ChardevQemuVDAgentWrapper',
 636                               'if': 'CONFIG_SPICE_PROTOCOL' },
 637             'dbus': { 'type': 'ChardevDBusWrapper',
 638                       'if': 'CONFIG_DBUS_DISPLAY' },
 639             'vc': 'ChardevVCWrapper',
 640             'ringbuf': 'ChardevRingbufWrapper',
 641             # next one is just for compatibility
 642             'memory': 'ChardevRingbufWrapper' } }
 643
 644 ##
 645 # @ChardevReturn:
 646 #
 647 # Return info about the chardev backend just created.
 648 #
 649 # @pty: name of the slave pseudoterminal device, present if and only
 650 #     if a chardev of type 'pty' was created
 651 #
 652 # Since: 1.4
 653 ##
 654 { 'struct' : 'ChardevReturn',
 655   'data': { '*pty': 'str' } }
 656
 657 ##
 658 # @chardev-add:
 659 #
 660 # Add a character device backend
 661 #
 662 # @id: the chardev's ID, must be unique
 663 #
 664 # @backend: backend type and parameters
 665 #
 666 # Returns: ChardevReturn.
 667 #
 668 # Since: 1.4
 669 #
 670 # Examples:
 671 #
 672 # -> { "execute" : "chardev-add",
 673 #      "arguments" : { "id" : "foo",
 674 #                      "backend" : { "type" : "null", "data" : {} } } }
 675 # <- { "return": {} }
 676 #
 677 # -> { "execute" : "chardev-add",
 678 #      "arguments" : { "id" : "bar",
 679 #                      "backend" : { "type" : "file",
 680 #                                    "data" : { "out" : "/tmp/bar.log" } } } }
 681 # <- { "return": {} }
 682 #
 683 # -> { "execute" : "chardev-add",
 684 #      "arguments" : { "id" : "baz",
 685 #                      "backend" : { "type" : "pty", "data" : {} } } }
 686 # <- { "return": { "pty" : "/dev/pty/42" } }
 687 ##
 688 { 'command': 'chardev-add',
 689   'data': { 'id': 'str',
 690             'backend': 'ChardevBackend' },
 691   'returns': 'ChardevReturn' }
 692
 693 ##
 694 # @chardev-change:
 695 #
 696 # Change a character device backend
 697 #
 698 # @id: the chardev's ID, must exist
 699 #
 700 # @backend: new backend type and parameters
 701 #
 702 # Returns: ChardevReturn.
 703 #
 704 # Since: 2.10
 705 #
 706 # Examples:
 707 #
 708 # -> { "execute" : "chardev-change",
 709 #      "arguments" : { "id" : "baz",
 710 #                      "backend" : { "type" : "pty", "data" : {} } } }
 711 # <- { "return": { "pty" : "/dev/pty/42" } }
 712 #
 713 # -> {"execute" : "chardev-change",
 714 #     "arguments" : {
 715 #         "id" : "charchannel2",
 716 #         "backend" : {
 717 #             "type" : "socket",
 718 #             "data" : {
 719 #                 "addr" : {
 720 #                     "type" : "unix" ,
 721 #                     "data" : {
 722 #                         "path" : "/tmp/charchannel2.socket"
 723 #                     }
 724 #                  },
 725 #                  "server" : true,
 726 #                  "wait" : false }}}}
 727 # <- {"return": {}}
 728 ##
 729 { 'command': 'chardev-change',
 730   'data': { 'id': 'str',
 731             'backend': 'ChardevBackend' },
 732   'returns': 'ChardevReturn' }
 733
 734 ##
 735 # @chardev-remove:
 736 #
 737 # Remove a character device backend
 738 #
 739 # @id: the chardev's ID, must exist and not be in use
 740 #
 741 # Returns: Nothing on success
 742 #
 743 # Since: 1.4
 744 #
 745 # Example:
 746 #
 747 # -> { "execute": "chardev-remove", "arguments": { "id" : "foo" } }
 748 # <- { "return": {} }
 749 ##
 750 { 'command': 'chardev-remove',
 751   'data': { 'id': 'str' } }
 752
 753 ##
 754 # @chardev-send-break:
 755 #
 756 # Send a break to a character device
 757 #
 758 # @id: the chardev's ID, must exist
 759 #
 760 # Returns: Nothing on success
 761 #
 762 # Since: 2.10
 763 #
 764 # Example:
 765 #
 766 # -> { "execute": "chardev-send-break", "arguments": { "id" : "foo" } }
 767 # <- { "return": {} }
 768 ##
 769 { 'command': 'chardev-send-break',
 770   'data': { 'id': 'str' } }
 771
 772 ##
 773 # @VSERPORT_CHANGE:
 774 #
 775 # Emitted when the guest opens or closes a virtio-serial port.
 776 #
 777 # @id: device identifier of the virtio-serial port
 778 #
 779 # @open: true if the guest has opened the virtio-serial port
 780 #
 781 # Note: This event is rate-limited.
 782 #
 783 # Since: 2.1
 784 #
 785 # Example:
 786 #
 787 # <- { "event": "VSERPORT_CHANGE",
 788 #      "data": { "id": "channel0", "open": true },
 789 #      "timestamp": { "seconds": 1401385907, "microseconds": 422329 } }
 790 ##
 791 { 'event': 'VSERPORT_CHANGE',
 792   'data': { 'id': 'str',
 793             'open': 'bool' } }