|  | # *-*- Mode: Python -*-* | 
|  |  | 
|  | ## | 
|  | # | 
|  | # General note concerning the use of guest agent interfaces: | 
|  | # | 
|  | # "unsupported" is a higher-level error than the errors that individual | 
|  | # commands might document. The caller should always be prepared to receive | 
|  | # QERR_UNSUPPORTED, even if the given command doesn't specify it, or doesn't | 
|  | # document any failure mode at all. | 
|  | # | 
|  | ## | 
|  |  | 
|  | ## | 
|  | # | 
|  | # Echo back a unique integer value, and prepend to response a | 
|  | # leading sentinel byte (0xFF) the client can check scan for. | 
|  | # | 
|  | # This is used by clients talking to the guest agent over the | 
|  | # wire to ensure the stream is in sync and doesn't contain stale | 
|  | # data from previous client. It must be issued upon initial | 
|  | # connection, and after any client-side timeouts (including | 
|  | # timeouts on receiving a response to this command). | 
|  | # | 
|  | # After issuing this request, all guest agent responses should be | 
|  | # ignored until the response containing the unique integer value | 
|  | # the client passed in is returned. Receival of the 0xFF sentinel | 
|  | # byte must be handled as an indication that the client's | 
|  | # lexer/tokenizer/parser state should be flushed/reset in | 
|  | # preparation for reliably receiving the subsequent response. As | 
|  | # an optimization, clients may opt to ignore all data until a | 
|  | # sentinel value is receiving to avoid unnecessary processing of | 
|  | # stale data. | 
|  | # | 
|  | # Similarly, clients should also precede this *request* | 
|  | # with a 0xFF byte to make sure the guest agent flushes any | 
|  | # partially read JSON data from a previous client connection. | 
|  | # | 
|  | # @id: randomly generated 64-bit integer | 
|  | # | 
|  | # Returns: The unique integer id passed in by the client | 
|  | # | 
|  | # Since: 1.1 | 
|  | # ## | 
|  | { 'command': 'guest-sync-delimited', | 
|  | 'data':    { 'id': 'int' }, | 
|  | 'returns': 'int' } | 
|  |  | 
|  | ## | 
|  | # @guest-sync: | 
|  | # | 
|  | # Echo back a unique integer value | 
|  | # | 
|  | # This is used by clients talking to the guest agent over the | 
|  | # wire to ensure the stream is in sync and doesn't contain stale | 
|  | # data from previous client. All guest agent responses should be | 
|  | # ignored until the provided unique integer value is returned, | 
|  | # and it is up to the client to handle stale whole or | 
|  | # partially-delivered JSON text in such a way that this response | 
|  | # can be obtained. | 
|  | # | 
|  | # In cases where a partial stale response was previously | 
|  | # received by the client, this cannot always be done reliably. | 
|  | # One particular scenario being if qemu-ga responses are fed | 
|  | # character-by-character into a JSON parser. In these situations, | 
|  | # using guest-sync-delimited may be optimal. | 
|  | # | 
|  | # For clients that fetch responses line by line and convert them | 
|  | # to JSON objects, guest-sync should be sufficient, but note that | 
|  | # in cases where the channel is dirty some attempts at parsing the | 
|  | # response may result in a parser error. | 
|  | # | 
|  | # Such clients should also precede this command | 
|  | # with a 0xFF byte to make sure the guest agent flushes any | 
|  | # partially read JSON data from a previous session. | 
|  | # | 
|  | # @id: randomly generated 64-bit integer | 
|  | # | 
|  | # Returns: The unique integer id passed in by the client | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-sync', | 
|  | 'data':    { 'id': 'int' }, | 
|  | 'returns': 'int' } | 
|  |  | 
|  | ## | 
|  | # @guest-ping: | 
|  | # | 
|  | # Ping the guest agent, a non-error return implies success | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-ping' } | 
|  |  | 
|  | ## | 
|  | # @guest-get-time: | 
|  | # | 
|  | # Get the information about guest's System Time relative to | 
|  | # the Epoch of 1970-01-01 in UTC. | 
|  | # | 
|  | # Returns: Time in nanoseconds. | 
|  | # | 
|  | # Since 1.5 | 
|  | ## | 
|  | { 'command': 'guest-get-time', | 
|  | 'returns': 'int' } | 
|  |  | 
|  | ## | 
|  | # @guest-set-time: | 
|  | # | 
|  | # Set guest time. | 
|  | # | 
|  | # When a guest is paused or migrated to a file then loaded | 
|  | # from that file, the guest OS has no idea that there | 
|  | # was a big gap in the time. Depending on how long the | 
|  | # gap was, NTP might not be able to resynchronize the | 
|  | # guest. | 
|  | # | 
|  | # This command tries to set guest's System Time to the | 
|  | # given value, then sets the Hardware Clock (RTC) to the | 
|  | # current System Time. This will make it easier for a guest | 
|  | # to resynchronize without waiting for NTP. If no @time is | 
|  | # specified, then the time to set is read from RTC. | 
|  | # | 
|  | # @time: #optional time of nanoseconds, relative to the Epoch | 
|  | #        of 1970-01-01 in UTC. | 
|  | # | 
|  | # Returns: Nothing on success. | 
|  | # | 
|  | # Since: 1.5 | 
|  | ## | 
|  | { 'command': 'guest-set-time', | 
|  | 'data': { '*time': 'int' } } | 
|  |  | 
|  | ## | 
|  | # @GuestAgentCommandInfo: | 
|  | # | 
|  | # Information about guest agent commands. | 
|  | # | 
|  | # @name: name of the command | 
|  | # | 
|  | # @enabled: whether command is currently enabled by guest admin | 
|  | # | 
|  | # @success-response: whether command returns a response on success | 
|  | #                    (since 1.7) | 
|  | # | 
|  | # Since 1.1.0 | 
|  | ## | 
|  | { 'type': 'GuestAgentCommandInfo', | 
|  | 'data': { 'name': 'str', 'enabled': 'bool', 'success-response': 'bool' } } | 
|  |  | 
|  | ## | 
|  | # @GuestAgentInfo | 
|  | # | 
|  | # Information about guest agent. | 
|  | # | 
|  | # @version: guest agent version | 
|  | # | 
|  | # @supported_commands: Information about guest agent commands | 
|  | # | 
|  | # Since 0.15.0 | 
|  | ## | 
|  | { 'type': 'GuestAgentInfo', | 
|  | 'data': { 'version': 'str', | 
|  | 'supported_commands': ['GuestAgentCommandInfo'] } } | 
|  | ## | 
|  | # @guest-info: | 
|  | # | 
|  | # Get some information about the guest agent. | 
|  | # | 
|  | # Returns: @GuestAgentInfo | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-info', | 
|  | 'returns': 'GuestAgentInfo' } | 
|  |  | 
|  | ## | 
|  | # @guest-shutdown: | 
|  | # | 
|  | # Initiate guest-activated shutdown. Note: this is an asynchronous | 
|  | # shutdown request, with no guarantee of successful shutdown. | 
|  | # | 
|  | # @mode: #optional "halt", "powerdown" (default), or "reboot" | 
|  | # | 
|  | # This command does NOT return a response on success. Success condition | 
|  | # is indicated by the VM exiting with a zero exit status or, when | 
|  | # running with --no-shutdown, by issuing the query-status QMP command | 
|  | # to confirm the VM status is "shutdown". | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-shutdown', 'data': { '*mode': 'str' }, | 
|  | 'success-response': 'no' } | 
|  |  | 
|  | ## | 
|  | # @guest-file-open: | 
|  | # | 
|  | # Open a file in the guest and retrieve a file handle for it | 
|  | # | 
|  | # @filepath: Full path to the file in the guest to open. | 
|  | # | 
|  | # @mode: #optional open mode, as per fopen(), "r" is the default. | 
|  | # | 
|  | # Returns: Guest file handle on success. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-file-open', | 
|  | 'data':    { 'path': 'str', '*mode': 'str' }, | 
|  | 'returns': 'int' } | 
|  |  | 
|  | ## | 
|  | # @guest-file-close: | 
|  | # | 
|  | # Close an open file in the guest | 
|  | # | 
|  | # @handle: filehandle returned by guest-file-open | 
|  | # | 
|  | # Returns: Nothing on success. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-file-close', | 
|  | 'data': { 'handle': 'int' } } | 
|  |  | 
|  | ## | 
|  | # @GuestFileRead | 
|  | # | 
|  | # Result of guest agent file-read operation | 
|  | # | 
|  | # @count: number of bytes read (note: count is *before* | 
|  | #         base64-encoding is applied) | 
|  | # | 
|  | # @buf-b64: base64-encoded bytes read | 
|  | # | 
|  | # @eof: whether EOF was encountered during read operation. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'type': 'GuestFileRead', | 
|  | 'data': { 'count': 'int', 'buf-b64': 'str', 'eof': 'bool' } } | 
|  |  | 
|  | ## | 
|  | # @guest-file-read: | 
|  | # | 
|  | # Read from an open file in the guest. Data will be base64-encoded | 
|  | # | 
|  | # @handle: filehandle returned by guest-file-open | 
|  | # | 
|  | # @count: #optional maximum number of bytes to read (default is 4KB) | 
|  | # | 
|  | # Returns: @GuestFileRead on success. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-file-read', | 
|  | 'data':    { 'handle': 'int', '*count': 'int' }, | 
|  | 'returns': 'GuestFileRead' } | 
|  |  | 
|  | ## | 
|  | # @GuestFileWrite | 
|  | # | 
|  | # Result of guest agent file-write operation | 
|  | # | 
|  | # @count: number of bytes written (note: count is actual bytes | 
|  | #         written, after base64-decoding of provided buffer) | 
|  | # | 
|  | # @eof: whether EOF was encountered during write operation. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'type': 'GuestFileWrite', | 
|  | 'data': { 'count': 'int', 'eof': 'bool' } } | 
|  |  | 
|  | ## | 
|  | # @guest-file-write: | 
|  | # | 
|  | # Write to an open file in the guest. | 
|  | # | 
|  | # @handle: filehandle returned by guest-file-open | 
|  | # | 
|  | # @buf-b64: base64-encoded string representing data to be written | 
|  | # | 
|  | # @count: #optional bytes to write (actual bytes, after base64-decode), | 
|  | #         default is all content in buf-b64 buffer after base64 decoding | 
|  | # | 
|  | # Returns: @GuestFileWrite on success. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-file-write', | 
|  | 'data':    { 'handle': 'int', 'buf-b64': 'str', '*count': 'int' }, | 
|  | 'returns': 'GuestFileWrite' } | 
|  |  | 
|  |  | 
|  | ## | 
|  | # @GuestFileSeek | 
|  | # | 
|  | # Result of guest agent file-seek operation | 
|  | # | 
|  | # @position: current file position | 
|  | # | 
|  | # @eof: whether EOF was encountered during file seek | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'type': 'GuestFileSeek', | 
|  | 'data': { 'position': 'int', 'eof': 'bool' } } | 
|  |  | 
|  | ## | 
|  | # @guest-file-seek: | 
|  | # | 
|  | # Seek to a position in the file, as with fseek(), and return the | 
|  | # current file position afterward. Also encapsulates ftell()'s | 
|  | # functionality, just Set offset=0, whence=SEEK_CUR. | 
|  | # | 
|  | # @handle: filehandle returned by guest-file-open | 
|  | # | 
|  | # @offset: bytes to skip over in the file stream | 
|  | # | 
|  | # @whence: SEEK_SET, SEEK_CUR, or SEEK_END, as with fseek() | 
|  | # | 
|  | # Returns: @GuestFileSeek on success. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-file-seek', | 
|  | 'data':    { 'handle': 'int', 'offset': 'int', 'whence': 'int' }, | 
|  | 'returns': 'GuestFileSeek' } | 
|  |  | 
|  | ## | 
|  | # @guest-file-flush: | 
|  | # | 
|  | # Write file changes bufferred in userspace to disk/kernel buffers | 
|  | # | 
|  | # @handle: filehandle returned by guest-file-open | 
|  | # | 
|  | # Returns: Nothing on success. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-file-flush', | 
|  | 'data': { 'handle': 'int' } } | 
|  |  | 
|  | ## | 
|  | # @GuestFsFreezeStatus | 
|  | # | 
|  | # An enumeration of filesystem freeze states | 
|  | # | 
|  | # @thawed: filesystems thawed/unfrozen | 
|  | # | 
|  | # @frozen: all non-network guest filesystems frozen | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'enum': 'GuestFsfreezeStatus', | 
|  | 'data': [ 'thawed', 'frozen' ] } | 
|  |  | 
|  | ## | 
|  | # @guest-fsfreeze-status: | 
|  | # | 
|  | # Get guest fsfreeze state. error state indicates | 
|  | # | 
|  | # Returns: GuestFsfreezeStatus ("thawed", "frozen", etc., as defined below) | 
|  | # | 
|  | # Note: This may fail to properly report the current state as a result of | 
|  | # some other guest processes having issued an fs freeze/thaw. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-fsfreeze-status', | 
|  | 'returns': 'GuestFsfreezeStatus' } | 
|  |  | 
|  | ## | 
|  | # @guest-fsfreeze-freeze: | 
|  | # | 
|  | # Sync and freeze all freezable, local guest filesystems | 
|  | # | 
|  | # Returns: Number of file systems currently frozen. On error, all filesystems | 
|  | # will be thawed. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-fsfreeze-freeze', | 
|  | 'returns': 'int' } | 
|  |  | 
|  | ## | 
|  | # @guest-fsfreeze-thaw: | 
|  | # | 
|  | # Unfreeze all frozen guest filesystems | 
|  | # | 
|  | # Returns: Number of file systems thawed by this call | 
|  | # | 
|  | # Note: if return value does not match the previous call to | 
|  | #       guest-fsfreeze-freeze, this likely means some freezable | 
|  | #       filesystems were unfrozen before this call, and that the | 
|  | #       filesystem state may have changed before issuing this | 
|  | #       command. | 
|  | # | 
|  | # Since: 0.15.0 | 
|  | ## | 
|  | { 'command': 'guest-fsfreeze-thaw', | 
|  | 'returns': 'int' } | 
|  |  | 
|  | ## | 
|  | # @guest-fstrim: | 
|  | # | 
|  | # Discard (or "trim") blocks which are not in use by the filesystem. | 
|  | # | 
|  | # @minimum: | 
|  | #       Minimum contiguous free range to discard, in bytes. Free ranges | 
|  | #       smaller than this may be ignored (this is a hint and the guest | 
|  | #       may not respect it).  By increasing this value, the fstrim | 
|  | #       operation will complete more quickly for filesystems with badly | 
|  | #       fragmented free space, although not all blocks will be discarded. | 
|  | #       The default value is zero, meaning "discard every free block". | 
|  | # | 
|  | # Returns: Nothing. | 
|  | # | 
|  | # Since: 1.2 | 
|  | ## | 
|  | { 'command': 'guest-fstrim', | 
|  | 'data': { '*minimum': 'int' } } | 
|  |  | 
|  | ## | 
|  | # @guest-suspend-disk | 
|  | # | 
|  | # Suspend guest to disk. | 
|  | # | 
|  | # This command tries to execute the scripts provided by the pm-utils package. | 
|  | # If it's not available, the suspend operation will be performed by manually | 
|  | # writing to a sysfs file. | 
|  | # | 
|  | # For the best results it's strongly recommended to have the pm-utils | 
|  | # package installed in the guest. | 
|  | # | 
|  | # This command does NOT return a response on success. There is a high chance | 
|  | # the command succeeded if the VM exits with a zero exit status or, when | 
|  | # running with --no-shutdown, by issuing the query-status QMP command to | 
|  | # to confirm the VM status is "shutdown". However, the VM could also exit | 
|  | # (or set its status to "shutdown") due to other reasons. | 
|  | # | 
|  | # The following errors may be returned: | 
|  | #          If suspend to disk is not supported, Unsupported | 
|  | # | 
|  | # Notes: It's strongly recommended to issue the guest-sync command before | 
|  | #        sending commands when the guest resumes | 
|  | # | 
|  | # Since: 1.1 | 
|  | ## | 
|  | { 'command': 'guest-suspend-disk', 'success-response': 'no' } | 
|  |  | 
|  | ## | 
|  | # @guest-suspend-ram | 
|  | # | 
|  | # Suspend guest to ram. | 
|  | # | 
|  | # This command tries to execute the scripts provided by the pm-utils package. | 
|  | # If it's not available, the suspend operation will be performed by manually | 
|  | # writing to a sysfs file. | 
|  | # | 
|  | # For the best results it's strongly recommended to have the pm-utils | 
|  | # package installed in the guest. | 
|  | # | 
|  | # IMPORTANT: guest-suspend-ram requires QEMU to support the 'system_wakeup' | 
|  | # command.  Thus, it's *required* to query QEMU for the presence of the | 
|  | # 'system_wakeup' command before issuing guest-suspend-ram. | 
|  | # | 
|  | # This command does NOT return a response on success. There are two options | 
|  | # to check for success: | 
|  | #   1. Wait for the SUSPEND QMP event from QEMU | 
|  | #   2. Issue the query-status QMP command to confirm the VM status is | 
|  | #      "suspended" | 
|  | # | 
|  | # The following errors may be returned: | 
|  | #          If suspend to ram is not supported, Unsupported | 
|  | # | 
|  | # Notes: It's strongly recommended to issue the guest-sync command before | 
|  | #        sending commands when the guest resumes | 
|  | # | 
|  | # Since: 1.1 | 
|  | ## | 
|  | { 'command': 'guest-suspend-ram', 'success-response': 'no' } | 
|  |  | 
|  | ## | 
|  | # @guest-suspend-hybrid | 
|  | # | 
|  | # Save guest state to disk and suspend to ram. | 
|  | # | 
|  | # This command requires the pm-utils package to be installed in the guest. | 
|  | # | 
|  | # IMPORTANT: guest-suspend-hybrid requires QEMU to support the 'system_wakeup' | 
|  | # command.  Thus, it's *required* to query QEMU for the presence of the | 
|  | # 'system_wakeup' command before issuing guest-suspend-hybrid. | 
|  | # | 
|  | # This command does NOT return a response on success. There are two options | 
|  | # to check for success: | 
|  | #   1. Wait for the SUSPEND QMP event from QEMU | 
|  | #   2. Issue the query-status QMP command to confirm the VM status is | 
|  | #      "suspended" | 
|  | # | 
|  | # The following errors may be returned: | 
|  | #          If hybrid suspend is not supported, Unsupported | 
|  | # | 
|  | # Notes: It's strongly recommended to issue the guest-sync command before | 
|  | #        sending commands when the guest resumes | 
|  | # | 
|  | # Since: 1.1 | 
|  | ## | 
|  | { 'command': 'guest-suspend-hybrid', 'success-response': 'no' } | 
|  |  | 
|  | ## | 
|  | # @GuestIpAddressType: | 
|  | # | 
|  | # An enumeration of supported IP address types | 
|  | # | 
|  | # @ipv4: IP version 4 | 
|  | # | 
|  | # @ipv6: IP version 6 | 
|  | # | 
|  | # Since: 1.1 | 
|  | ## | 
|  | { 'enum': 'GuestIpAddressType', | 
|  | 'data': [ 'ipv4', 'ipv6' ] } | 
|  |  | 
|  | ## | 
|  | # @GuestIpAddress: | 
|  | # | 
|  | # @ip-address: IP address | 
|  | # | 
|  | # @ip-address-type: Type of @ip-address (e.g. ipv4, ipv6) | 
|  | # | 
|  | # @prefix: Network prefix length of @ip-address | 
|  | # | 
|  | # Since: 1.1 | 
|  | ## | 
|  | { 'type': 'GuestIpAddress', | 
|  | 'data': {'ip-address': 'str', | 
|  | 'ip-address-type': 'GuestIpAddressType', | 
|  | 'prefix': 'int'} } | 
|  |  | 
|  | ## | 
|  | # @GuestNetworkInterface: | 
|  | # | 
|  | # @name: The name of interface for which info are being delivered | 
|  | # | 
|  | # @hardware-address: Hardware address of @name | 
|  | # | 
|  | # @ip-addresses: List of addresses assigned to @name | 
|  | # | 
|  | # Since: 1.1 | 
|  | ## | 
|  | { 'type': 'GuestNetworkInterface', | 
|  | 'data': {'name': 'str', | 
|  | '*hardware-address': 'str', | 
|  | '*ip-addresses': ['GuestIpAddress'] } } | 
|  |  | 
|  | ## | 
|  | # @guest-network-get-interfaces: | 
|  | # | 
|  | # Get list of guest IP addresses, MAC addresses | 
|  | # and netmasks. | 
|  | # | 
|  | # Returns: List of GuestNetworkInfo on success. | 
|  | # | 
|  | # Since: 1.1 | 
|  | ## | 
|  | { 'command': 'guest-network-get-interfaces', | 
|  | 'returns': ['GuestNetworkInterface'] } | 
|  |  | 
|  | ## | 
|  | # @GuestLogicalProcessor: | 
|  | # | 
|  | # @logical-id: Arbitrary guest-specific unique identifier of the VCPU. | 
|  | # | 
|  | # @online: Whether the VCPU is enabled. | 
|  | # | 
|  | # @can-offline: #optional Whether offlining the VCPU is possible. This member | 
|  | #               is always filled in by the guest agent when the structure is | 
|  | #               returned, and always ignored on input (hence it can be omitted | 
|  | #               then). | 
|  | # | 
|  | # Since: 1.5 | 
|  | ## | 
|  | { 'type': 'GuestLogicalProcessor', | 
|  | 'data': {'logical-id': 'int', | 
|  | 'online': 'bool', | 
|  | '*can-offline': 'bool'} } | 
|  |  | 
|  | ## | 
|  | # @guest-get-vcpus: | 
|  | # | 
|  | # Retrieve the list of the guest's logical processors. | 
|  | # | 
|  | # This is a read-only operation. | 
|  | # | 
|  | # Returns: The list of all VCPUs the guest knows about. Each VCPU is put on the | 
|  | # list exactly once, but their order is unspecified. | 
|  | # | 
|  | # Since: 1.5 | 
|  | ## | 
|  | { 'command': 'guest-get-vcpus', | 
|  | 'returns': ['GuestLogicalProcessor'] } | 
|  |  | 
|  | ## | 
|  | # @guest-set-vcpus: | 
|  | # | 
|  | # Attempt to reconfigure (currently: enable/disable) logical processors inside | 
|  | # the guest. | 
|  | # | 
|  | # The input list is processed node by node in order. In each node @logical-id | 
|  | # is used to look up the guest VCPU, for which @online specifies the requested | 
|  | # state. The set of distinct @logical-id's is only required to be a subset of | 
|  | # the guest-supported identifiers. There's no restriction on list length or on | 
|  | # repeating the same @logical-id (with possibly different @online field). | 
|  | # Preferably the input list should describe a modified subset of | 
|  | # @guest-get-vcpus' return value. | 
|  | # | 
|  | # Returns: The length of the initial sublist that has been successfully | 
|  | #          processed. The guest agent maximizes this value. Possible cases: | 
|  | # | 
|  | #          0:                if the @vcpus list was empty on input. Guest state | 
|  | #                            has not been changed. Otherwise, | 
|  | # | 
|  | #          Error:            processing the first node of @vcpus failed for the | 
|  | #                            reason returned. Guest state has not been changed. | 
|  | #                            Otherwise, | 
|  | # | 
|  | #          < length(@vcpus): more than zero initial nodes have been processed, | 
|  | #                            but not the entire @vcpus list. Guest state has | 
|  | #                            changed accordingly. To retrieve the error | 
|  | #                            (assuming it persists), repeat the call with the | 
|  | #                            successfully processed initial sublist removed. | 
|  | #                            Otherwise, | 
|  | # | 
|  | #          length(@vcpus):   call successful. | 
|  | # | 
|  | # Since: 1.5 | 
|  | ## | 
|  | { 'command': 'guest-set-vcpus', | 
|  | 'data':    {'vcpus': ['GuestLogicalProcessor'] }, | 
|  | 'returns': 'int' } |