1 # *-*- Mode: Python -*-*
5 # General note concerning the use of guest agent interfaces:
7 # "unsupported" is a higher-level error than the errors that individual
8 # commands might document. The caller should always be prepared to receive
9 # QERR_UNSUPPORTED, even if the given command doesn't specify it, or doesn't
10 # document any failure mode at all.
15 # @guest-sync-delimited:
17 # Echo back a unique integer value, and prepend to response a
18 # leading sentinel byte (0xFF) the client can check scan for.
20 # This is used by clients talking to the guest agent over the
21 # wire to ensure the stream is in sync and doesn't contain stale
22 # data from previous client. It must be issued upon initial
23 # connection, and after any client-side timeouts (including
24 # timeouts on receiving a response to this command).
26 # After issuing this request, all guest agent responses should be
27 # ignored until the response containing the unique integer value
28 # the client passed in is returned. Receival of the 0xFF sentinel
29 # byte must be handled as an indication that the client's
30 # lexer/tokenizer/parser state should be flushed/reset in
31 # preparation for reliably receiving the subsequent response. As
32 # an optimization, clients may opt to ignore all data until a
33 # sentinel value is receiving to avoid unnecessary processing of
36 # Similarly, clients should also precede this *request*
37 # with a 0xFF byte to make sure the guest agent flushes any
38 # partially read JSON data from a previous client connection.
40 # @id: randomly generated 64-bit integer
42 # Returns: The unique integer id passed in by the client
46 { 'command': 'guest-sync-delimited',
47 'data': { 'id': 'int' },
53 # Echo back a unique integer value
55 # This is used by clients talking to the guest agent over the
56 # wire to ensure the stream is in sync and doesn't contain stale
57 # data from previous client. All guest agent responses should be
58 # ignored until the provided unique integer value is returned,
59 # and it is up to the client to handle stale whole or
60 # partially-delivered JSON text in such a way that this response
63 # In cases where a partial stale response was previously
64 # received by the client, this cannot always be done reliably.
65 # One particular scenario being if qemu-ga responses are fed
66 # character-by-character into a JSON parser. In these situations,
67 # using guest-sync-delimited may be optimal.
69 # For clients that fetch responses line by line and convert them
70 # to JSON objects, guest-sync should be sufficient, but note that
71 # in cases where the channel is dirty some attempts at parsing the
72 # response may result in a parser error.
74 # Such clients should also precede this command
75 # with a 0xFF byte to make sure the guest agent flushes any
76 # partially read JSON data from a previous session.
78 # @id: randomly generated 64-bit integer
80 # Returns: The unique integer id passed in by the client
84 { 'command': 'guest-sync',
85 'data': { 'id': 'int' },
91 # Ping the guest agent, a non-error return implies success
95 { 'command': 'guest-ping' }
100 # Get the information about guest's System Time relative to
101 # the Epoch of 1970-01-01 in UTC.
103 # Returns: Time in nanoseconds.
107 { 'command': 'guest-get-time',
115 # When a guest is paused or migrated to a file then loaded
116 # from that file, the guest OS has no idea that there
117 # was a big gap in the time. Depending on how long the
118 # gap was, NTP might not be able to resynchronize the
121 # This command tries to set guest's System Time to the
122 # given value, then sets the Hardware Clock (RTC) to the
123 # current System Time. This will make it easier for a guest
124 # to resynchronize without waiting for NTP. If no @time is
125 # specified, then the time to set is read from RTC. However,
126 # this may not be supported on all platforms (i.e. Windows).
127 # If that's the case users are advised to always pass a
130 # @time: #optional time of nanoseconds, relative to the Epoch
131 # of 1970-01-01 in UTC.
133 # Returns: Nothing on success.
137 { 'command': 'guest-set-time',
138 'data': { '*time': 'int' } }
141 # @GuestAgentCommandInfo:
143 # Information about guest agent commands.
145 # @name: name of the command
147 # @enabled: whether command is currently enabled by guest admin
149 # @success-response: whether command returns a response on success
154 { 'struct': 'GuestAgentCommandInfo',
155 'data': { 'name': 'str', 'enabled': 'bool', 'success-response': 'bool' } }
160 # Information about guest agent.
162 # @version: guest agent version
164 # @supported_commands: Information about guest agent commands
168 { 'struct': 'GuestAgentInfo',
169 'data': { 'version': 'str',
170 'supported_commands': ['GuestAgentCommandInfo'] } }
174 # Get some information about the guest agent.
176 # Returns: @GuestAgentInfo
180 { 'command': 'guest-info',
181 'returns': 'GuestAgentInfo' }
186 # Initiate guest-activated shutdown. Note: this is an asynchronous
187 # shutdown request, with no guarantee of successful shutdown.
189 # @mode: #optional "halt", "powerdown" (default), or "reboot"
191 # This command does NOT return a response on success. Success condition
192 # is indicated by the VM exiting with a zero exit status or, when
193 # running with --no-shutdown, by issuing the query-status QMP command
194 # to confirm the VM status is "shutdown".
198 { 'command': 'guest-shutdown', 'data': { '*mode': 'str' },
199 'success-response': false }
204 # Open a file in the guest and retrieve a file handle for it
206 # @filepath: Full path to the file in the guest to open.
208 # @mode: #optional open mode, as per fopen(), "r" is the default.
210 # Returns: Guest file handle on success.
214 { 'command': 'guest-file-open',
215 'data': { 'path': 'str', '*mode': 'str' },
221 # Close an open file in the guest
223 # @handle: filehandle returned by guest-file-open
225 # Returns: Nothing on success.
229 { 'command': 'guest-file-close',
230 'data': { 'handle': 'int' } }
235 # Result of guest agent file-read operation
237 # @count: number of bytes read (note: count is *before*
238 # base64-encoding is applied)
240 # @buf-b64: base64-encoded bytes read
242 # @eof: whether EOF was encountered during read operation.
246 { 'struct': 'GuestFileRead',
247 'data': { 'count': 'int', 'buf-b64': 'str', 'eof': 'bool' } }
252 # Read from an open file in the guest. Data will be base64-encoded
254 # @handle: filehandle returned by guest-file-open
256 # @count: #optional maximum number of bytes to read (default is 4KB)
258 # Returns: @GuestFileRead on success.
262 { 'command': 'guest-file-read',
263 'data': { 'handle': 'int', '*count': 'int' },
264 'returns': 'GuestFileRead' }
269 # Result of guest agent file-write operation
271 # @count: number of bytes written (note: count is actual bytes
272 # written, after base64-decoding of provided buffer)
274 # @eof: whether EOF was encountered during write operation.
278 { 'struct': 'GuestFileWrite',
279 'data': { 'count': 'int', 'eof': 'bool' } }
284 # Write to an open file in the guest.
286 # @handle: filehandle returned by guest-file-open
288 # @buf-b64: base64-encoded string representing data to be written
290 # @count: #optional bytes to write (actual bytes, after base64-decode),
291 # default is all content in buf-b64 buffer after base64 decoding
293 # Returns: @GuestFileWrite on success.
297 { 'command': 'guest-file-write',
298 'data': { 'handle': 'int', 'buf-b64': 'str', '*count': 'int' },
299 'returns': 'GuestFileWrite' }
305 # Result of guest agent file-seek operation
307 # @position: current file position
309 # @eof: whether EOF was encountered during file seek
313 { 'struct': 'GuestFileSeek',
314 'data': { 'position': 'int', 'eof': 'bool' } }
319 # Seek to a position in the file, as with fseek(), and return the
320 # current file position afterward. Also encapsulates ftell()'s
321 # functionality, just Set offset=0, whence=SEEK_CUR.
323 # @handle: filehandle returned by guest-file-open
325 # @offset: bytes to skip over in the file stream
327 # @whence: SEEK_SET, SEEK_CUR, or SEEK_END, as with fseek()
329 # Returns: @GuestFileSeek on success.
333 { 'command': 'guest-file-seek',
334 'data': { 'handle': 'int', 'offset': 'int', 'whence': 'int' },
335 'returns': 'GuestFileSeek' }
340 # Write file changes bufferred in userspace to disk/kernel buffers
342 # @handle: filehandle returned by guest-file-open
344 # Returns: Nothing on success.
348 { 'command': 'guest-file-flush',
349 'data': { 'handle': 'int' } }
352 # @GuestFsFreezeStatus
354 # An enumeration of filesystem freeze states
356 # @thawed: filesystems thawed/unfrozen
358 # @frozen: all non-network guest filesystems frozen
362 { 'enum': 'GuestFsfreezeStatus',
363 'data': [ 'thawed', 'frozen' ] }
366 # @guest-fsfreeze-status:
368 # Get guest fsfreeze state. error state indicates
370 # Returns: GuestFsfreezeStatus ("thawed", "frozen", etc., as defined below)
372 # Note: This may fail to properly report the current state as a result of
373 # some other guest processes having issued an fs freeze/thaw.
377 { 'command': 'guest-fsfreeze-status',
378 'returns': 'GuestFsfreezeStatus' }
381 # @guest-fsfreeze-freeze:
383 # Sync and freeze all freezable, local guest filesystems
385 # Returns: Number of file systems currently frozen. On error, all filesystems
390 { 'command': 'guest-fsfreeze-freeze',
394 # @guest-fsfreeze-freeze-list:
396 # Sync and freeze specified guest filesystems
398 # @mountpoints: #optional an array of mountpoints of filesystems to be frozen.
399 # If omitted, every mounted filesystem is frozen.
401 # Returns: Number of file systems currently frozen. On error, all filesystems
406 { 'command': 'guest-fsfreeze-freeze-list',
407 'data': { '*mountpoints': ['str'] },
411 # @guest-fsfreeze-thaw:
413 # Unfreeze all frozen guest filesystems
415 # Returns: Number of file systems thawed by this call
417 # Note: if return value does not match the previous call to
418 # guest-fsfreeze-freeze, this likely means some freezable
419 # filesystems were unfrozen before this call, and that the
420 # filesystem state may have changed before issuing this
425 { 'command': 'guest-fsfreeze-thaw',
429 # @GuestFilesystemTrimResult
431 # @path: path that was trimmed
432 # @error: an error message when trim failed
433 # @trimmed: bytes trimmed for this path
434 # @minimum: reported effective minimum for this path
438 { 'struct': 'GuestFilesystemTrimResult',
439 'data': {'path': 'str',
440 '*trimmed': 'int', '*minimum': 'int', '*error': 'str'} }
443 # @GuestFilesystemTrimResponse
445 # @paths: list of @GuestFilesystemTrimResult per path that was trimmed
449 { 'struct': 'GuestFilesystemTrimResponse',
450 'data': {'paths': ['GuestFilesystemTrimResult']} }
455 # Discard (or "trim") blocks which are not in use by the filesystem.
458 # Minimum contiguous free range to discard, in bytes. Free ranges
459 # smaller than this may be ignored (this is a hint and the guest
460 # may not respect it). By increasing this value, the fstrim
461 # operation will complete more quickly for filesystems with badly
462 # fragmented free space, although not all blocks will be discarded.
463 # The default value is zero, meaning "discard every free block".
465 # Returns: A @GuestFilesystemTrimResponse which contains the
466 # status of all trimmed paths. (since 2.4)
470 { 'command': 'guest-fstrim',
471 'data': { '*minimum': 'int' },
472 'returns': 'GuestFilesystemTrimResponse' }
475 # @guest-suspend-disk
477 # Suspend guest to disk.
479 # This command tries to execute the scripts provided by the pm-utils package.
480 # If it's not available, the suspend operation will be performed by manually
481 # writing to a sysfs file.
483 # For the best results it's strongly recommended to have the pm-utils
484 # package installed in the guest.
486 # This command does NOT return a response on success. There is a high chance
487 # the command succeeded if the VM exits with a zero exit status or, when
488 # running with --no-shutdown, by issuing the query-status QMP command to
489 # to confirm the VM status is "shutdown". However, the VM could also exit
490 # (or set its status to "shutdown") due to other reasons.
492 # The following errors may be returned:
493 # If suspend to disk is not supported, Unsupported
495 # Notes: It's strongly recommended to issue the guest-sync command before
496 # sending commands when the guest resumes
500 { 'command': 'guest-suspend-disk', 'success-response': false }
505 # Suspend guest to ram.
507 # This command tries to execute the scripts provided by the pm-utils package.
508 # If it's not available, the suspend operation will be performed by manually
509 # writing to a sysfs file.
511 # For the best results it's strongly recommended to have the pm-utils
512 # package installed in the guest.
514 # IMPORTANT: guest-suspend-ram requires QEMU to support the 'system_wakeup'
515 # command. Thus, it's *required* to query QEMU for the presence of the
516 # 'system_wakeup' command before issuing guest-suspend-ram.
518 # This command does NOT return a response on success. There are two options
519 # to check for success:
520 # 1. Wait for the SUSPEND QMP event from QEMU
521 # 2. Issue the query-status QMP command to confirm the VM status is
524 # The following errors may be returned:
525 # If suspend to ram is not supported, Unsupported
527 # Notes: It's strongly recommended to issue the guest-sync command before
528 # sending commands when the guest resumes
532 { 'command': 'guest-suspend-ram', 'success-response': false }
535 # @guest-suspend-hybrid
537 # Save guest state to disk and suspend to ram.
539 # This command requires the pm-utils package to be installed in the guest.
541 # IMPORTANT: guest-suspend-hybrid requires QEMU to support the 'system_wakeup'
542 # command. Thus, it's *required* to query QEMU for the presence of the
543 # 'system_wakeup' command before issuing guest-suspend-hybrid.
545 # This command does NOT return a response on success. There are two options
546 # to check for success:
547 # 1. Wait for the SUSPEND QMP event from QEMU
548 # 2. Issue the query-status QMP command to confirm the VM status is
551 # The following errors may be returned:
552 # If hybrid suspend is not supported, Unsupported
554 # Notes: It's strongly recommended to issue the guest-sync command before
555 # sending commands when the guest resumes
559 { 'command': 'guest-suspend-hybrid', 'success-response': false }
562 # @GuestIpAddressType:
564 # An enumeration of supported IP address types
566 # @ipv4: IP version 4
568 # @ipv6: IP version 6
572 { 'enum': 'GuestIpAddressType',
573 'data': [ 'ipv4', 'ipv6' ] }
578 # @ip-address: IP address
580 # @ip-address-type: Type of @ip-address (e.g. ipv4, ipv6)
582 # @prefix: Network prefix length of @ip-address
586 { 'struct': 'GuestIpAddress',
587 'data': {'ip-address': 'str',
588 'ip-address-type': 'GuestIpAddressType',
592 # @GuestNetworkInterface:
594 # @name: The name of interface for which info are being delivered
596 # @hardware-address: Hardware address of @name
598 # @ip-addresses: List of addresses assigned to @name
602 { 'struct': 'GuestNetworkInterface',
603 'data': {'name': 'str',
604 '*hardware-address': 'str',
605 '*ip-addresses': ['GuestIpAddress'] } }
608 # @guest-network-get-interfaces:
610 # Get list of guest IP addresses, MAC addresses
613 # Returns: List of GuestNetworkInfo on success.
617 { 'command': 'guest-network-get-interfaces',
618 'returns': ['GuestNetworkInterface'] }
621 # @GuestLogicalProcessor:
623 # @logical-id: Arbitrary guest-specific unique identifier of the VCPU.
625 # @online: Whether the VCPU is enabled.
627 # @can-offline: #optional Whether offlining the VCPU is possible. This member
628 # is always filled in by the guest agent when the structure is
629 # returned, and always ignored on input (hence it can be omitted
634 { 'struct': 'GuestLogicalProcessor',
635 'data': {'logical-id': 'int',
637 '*can-offline': 'bool'} }
642 # Retrieve the list of the guest's logical processors.
644 # This is a read-only operation.
646 # Returns: The list of all VCPUs the guest knows about. Each VCPU is put on the
647 # list exactly once, but their order is unspecified.
651 { 'command': 'guest-get-vcpus',
652 'returns': ['GuestLogicalProcessor'] }
657 # Attempt to reconfigure (currently: enable/disable) logical processors inside
660 # The input list is processed node by node in order. In each node @logical-id
661 # is used to look up the guest VCPU, for which @online specifies the requested
662 # state. The set of distinct @logical-id's is only required to be a subset of
663 # the guest-supported identifiers. There's no restriction on list length or on
664 # repeating the same @logical-id (with possibly different @online field).
665 # Preferably the input list should describe a modified subset of
666 # @guest-get-vcpus' return value.
668 # Returns: The length of the initial sublist that has been successfully
669 # processed. The guest agent maximizes this value. Possible cases:
671 # 0: if the @vcpus list was empty on input. Guest state
672 # has not been changed. Otherwise,
674 # Error: processing the first node of @vcpus failed for the
675 # reason returned. Guest state has not been changed.
678 # < length(@vcpus): more than zero initial nodes have been processed,
679 # but not the entire @vcpus list. Guest state has
680 # changed accordingly. To retrieve the error
681 # (assuming it persists), repeat the call with the
682 # successfully processed initial sublist removed.
685 # length(@vcpus): call successful.
689 { 'command': 'guest-set-vcpus',
690 'data': {'vcpus': ['GuestLogicalProcessor'] },
696 # An enumeration of bus type of disks
701 # @virtio: virtio disks
707 # @unknown: Unknown bus type
708 # @ieee1394: Win IEEE 1394 bus type
709 # @ssa: Win SSA bus type
710 # @fibre: Win fiber channel bus type
711 # @raid: Win RAID bus type
712 # @iscsi: Win iScsi bus type
713 # @sas: Win serial-attaches SCSI bus type
714 # @mmc: Win multimedia card (MMC) bus type
715 # @virtual: Win virtual bus type
716 # @file-backed virtual: Win file-backed bus type
718 # Since: 2.2; 'Unknown' and all entries below since 2.4
720 { 'enum': 'GuestDiskBusType',
721 'data': [ 'ide', 'fdc', 'scsi', 'virtio', 'xen', 'usb', 'uml', 'sata',
722 'sd', 'unknown', 'ieee1394', 'ssa', 'fibre', 'raid', 'iscsi',
723 'sas', 'mmc', 'virtual', 'file-backed-virtual' ] }
732 # @function: function id
736 { 'struct': 'GuestPCIAddress',
737 'data': {'domain': 'int', 'bus': 'int',
738 'slot': 'int', 'function': 'int'} }
743 # @pci-controller: controller's PCI address
751 { 'struct': 'GuestDiskAddress',
752 'data': {'pci-controller': 'GuestPCIAddress',
753 'bus-type': 'GuestDiskBusType',
754 'bus': 'int', 'target': 'int', 'unit': 'int'} }
757 # @GuestFilesystemInfo
760 # @mountpoint: mount point path
761 # @type: file system type string
762 # @disk: an array of disk hardware information that the volume lies on,
763 # which may be empty if the disk type is not supported
767 { 'struct': 'GuestFilesystemInfo',
768 'data': {'name': 'str', 'mountpoint': 'str', 'type': 'str',
769 'disk': ['GuestDiskAddress']} }
774 # Returns: The list of filesystems information mounted in the guest.
775 # The returned mountpoints may be specified to
776 # @guest-fsfreeze-freeze-list.
777 # Network filesystems (such as CIFS and NFS) are not listed.
781 { 'command': 'guest-get-fsinfo',
782 'returns': ['GuestFilesystemInfo'] }
785 # @guest-set-user-password
787 # @username: the user account whose password to change
788 # @password: the new password entry string, base64 encoded
789 # @crypted: true if password is already crypt()d, false if raw
791 # If the @crypted flag is true, it is the caller's responsibility
792 # to ensure the correct crypt() encryption scheme is used. This
793 # command does not attempt to interpret or report on the encryption
794 # scheme. Refer to the documentation of the guest operating system
795 # in question to determine what is supported.
797 # Not all guest operating systems will support use of the
798 # @crypted flag, as they may require the clear-text password
800 # The @password parameter must always be base64 encoded before
801 # transmission, even if already crypt()d, to ensure it is 8-bit
802 # safe when passed as JSON.
804 # Returns: Nothing on success.
808 { 'command': 'guest-set-user-password',
809 'data': { 'username': 'str', 'password': 'str', 'crypted': 'bool' } }
813 # @phys-index: Arbitrary guest-specific unique identifier of the MEMORY BLOCK.
815 # @online: Whether the MEMORY BLOCK is enabled in guest.
817 # @can-offline: #optional Whether offlining the MEMORY BLOCK is possible.
818 # This member is always filled in by the guest agent when the
819 # structure is returned, and always ignored on input (hence it
820 # can be omitted then).
824 { 'struct': 'GuestMemoryBlock',
825 'data': {'phys-index': 'uint64',
827 '*can-offline': 'bool'} }
830 # @guest-get-memory-blocks:
832 # Retrieve the list of the guest's memory blocks.
834 # This is a read-only operation.
836 # Returns: The list of all memory blocks the guest knows about.
837 # Each memory block is put on the list exactly once, but their order
842 { 'command': 'guest-get-memory-blocks',
843 'returns': ['GuestMemoryBlock'] }
846 # @GuestMemoryBlockResponseType
848 # An enumeration of memory block operation result.
850 # @success: the operation of online/offline memory block is successful.
851 # @not-found: can't find the corresponding memoryXXX directory in sysfs.
852 # @operation-not-supported: for some old kernels, it does not support
853 # online or offline memory block.
854 # @operation-failed: the operation of online/offline memory block fails,
855 # because of some errors happen.
859 { 'enum': 'GuestMemoryBlockResponseType',
860 'data': ['success', 'not-found', 'operation-not-supported',
861 'operation-failed'] }
864 # @GuestMemoryBlockResponse:
866 # @phys-index: same with the 'phys-index' member of @GuestMemoryBlock.
868 # @response: the result of memory block operation.
870 # @error-code: #optional the error number.
871 # When memory block operation fails, we assign the value of
872 # 'errno' to this member, it indicates what goes wrong.
873 # When the operation succeeds, it will be omitted.
877 { 'struct': 'GuestMemoryBlockResponse',
878 'data': { 'phys-index': 'uint64',
879 'response': 'GuestMemoryBlockResponseType',
880 '*error-code': 'int' }}
883 # @guest-set-memory-blocks:
885 # Attempt to reconfigure (currently: enable/disable) state of memory blocks
888 # The input list is processed node by node in order. In each node @phys-index
889 # is used to look up the guest MEMORY BLOCK, for which @online specifies the
890 # requested state. The set of distinct @phys-index's is only required to be a
891 # subset of the guest-supported identifiers. There's no restriction on list
892 # length or on repeating the same @phys-index (with possibly different @online
894 # Preferably the input list should describe a modified subset of
895 # @guest-get-memory-blocks' return value.
897 # Returns: The operation results, it is a list of @GuestMemoryBlockResponse,
898 # which is corresponding to the input list.
900 # Note: it will return NULL if the @mem-blks list was empty on input,
901 # or there is an error, and in this case, guest state will not be
906 { 'command': 'guest-set-memory-blocks',
907 'data': {'mem-blks': ['GuestMemoryBlock'] },
908 'returns': ['GuestMemoryBlockResponse'] }
910 # @GuestMemoryBlockInfo:
912 # @size: the size (in bytes) of the guest memory blocks,
913 # which are the minimal units of memory block online/offline
914 # operations (also called Logical Memory Hotplug).
918 { 'struct': 'GuestMemoryBlockInfo',
919 'data': {'size': 'uint64'} }
922 # @guest-get-memory-block-info:
924 # Get information relating to guest memory blocks.
926 # Returns: memory block size in bytes.
927 # Returns: @GuestMemoryBlockInfo
931 { 'command': 'guest-get-memory-block-info',
932 'returns': 'GuestMemoryBlockInfo' }