[mirror_qemu.git] / qapi-schema.json

# -*- Mode: Python -*-
#
# QAPI Schema

##
# @ErrorClass
#
# QEMU error classes
#
# @GenericError: this is used for errors that don't require a specific error
#                class. This should be the default case for most errors
#
# @CommandNotFound: the requested command has not been found
#
# @DeviceEncrypted: the requested operation can't be fulfilled because the
#                   selected device is encrypted
#
# @DeviceNotActive: a device has failed to be become active
#
# @DeviceNotFound: the requested device has not been found
#
# @KVMMissingCap: the requested operation can't be fulfilled because a
#                 required KVM capability is missing
#
# Since: 1.2
##
{ 'enum': 'ErrorClass',
  'data': [ 'GenericError', 'CommandNotFound', 'DeviceEncrypted',
            'DeviceNotActive', 'DeviceNotFound', 'KVMMissingCap' ] }

##
# @add_client
#
# Allow client connections for VNC, Spice and socket based
# character devices to be passed in to QEMU via SCM_RIGHTS.
#
# @protocol: protocol name. Valid names are "vnc", "spice" or the
#            name of a character device (eg. from -chardev id=XXXX)
#
# @fdname: file descriptor name previously passed via 'getfd' command
#
# @skipauth: #optional whether to skip authentication. Only applies
#            to "vnc" and "spice" protocols
#
# @tls: #optional whether to perform TLS. Only applies to the "spice"
#       protocol
#
# Returns: nothing on success.
#
# Since: 0.14.0
##
{ 'command': 'add_client',
  'data': { 'protocol': 'str', 'fdname': 'str', '*skipauth': 'bool',
            '*tls': 'bool' } }

##
# @NameInfo:
#
# Guest name information.
#
# @name: #optional The name of the guest
#
# Since 0.14.0
##
{ 'type': 'NameInfo', 'data': {'*name': 'str'} }

##
# @query-name:
#
# Return the name information of a guest.
#
# Returns: @NameInfo of the guest
#
# Since 0.14.0
##
{ 'command': 'query-name', 'returns': 'NameInfo' }

##
# @VersionInfo:
#
# A description of QEMU's version.
#
# @qemu.major:  The major version of QEMU
#
# @qemu.minor:  The minor version of QEMU
#
# @qemu.micro:  The micro version of QEMU.  By current convention, a micro
#               version of 50 signifies a development branch.  A micro version
#               greater than or equal to 90 signifies a release candidate for
#               the next minor version.  A micro version of less than 50
#               signifies a stable release.
#
# @package:     QEMU will always set this field to an empty string.  Downstream
#               versions of QEMU should set this to a non-empty string.  The
#               exact format depends on the downstream however it highly
#               recommended that a unique name is used.
#
# Since: 0.14.0
##
{ 'type': 'VersionInfo',
  'data': {'qemu': {'major': 'int', 'minor': 'int', 'micro': 'int'},
           'package': 'str'} }

##
# @query-version:
#
# Returns the current version of QEMU.
#
# Returns:  A @VersionInfo object describing the current version of QEMU.
#
# Since: 0.14.0
##
{ 'command': 'query-version', 'returns': 'VersionInfo' }

##
# @KvmInfo:
#
# Information about support for KVM acceleration
#
# @enabled: true if KVM acceleration is active
#
# @present: true if KVM acceleration is built into this executable
#
# Since: 0.14.0
##
{ 'type': 'KvmInfo', 'data': {'enabled': 'bool', 'present': 'bool'} }

##
# @query-kvm:
#
# Returns information about KVM acceleration
#
# Returns: @KvmInfo
#
# Since: 0.14.0
##
{ 'command': 'query-kvm', 'returns': 'KvmInfo' }

##
# @RunState
#
# An enumeration of VM run states.
#
# @debug: QEMU is running on a debugger
#
# @finish-migrate: guest is paused to finish the migration process
#
# @inmigrate: guest is paused waiting for an incoming migration.  Note
# that this state does not tell whether the machine will start at the
# end of the migration.  This depends on the command-line -S option and
# any invocation of 'stop' or 'cont' that has happened since QEMU was
# started.
#
# @internal-error: An internal error that prevents further guest execution
# has occurred
#
# @io-error: the last IOP has failed and the device is configured to pause
# on I/O errors
#
# @paused: guest has been paused via the 'stop' command
#
# @postmigrate: guest is paused following a successful 'migrate'
#
# @prelaunch: QEMU was started with -S and guest has not started
#
# @restore-vm: guest is paused to restore VM state
#
# @running: guest is actively running
#
# @save-vm: guest is paused to save the VM state
#
# @shutdown: guest is shut down (and -no-shutdown is in use)
#
# @suspended: guest is suspended (ACPI S3)
#
# @watchdog: the watchdog action is configured to pause and has been triggered
#
# @guest-panicked: guest has been panicked as a result of guest OS panic
##
{ 'enum': 'RunState',
  'data': [ 'debug', 'inmigrate', 'internal-error', 'io-error', 'paused',
            'postmigrate', 'prelaunch', 'finish-migrate', 'restore-vm',
            'running', 'save-vm', 'shutdown', 'suspended', 'watchdog',
            'guest-panicked' ] }

##
# @SnapshotInfo
#
# @id: unique snapshot id
#
# @name: user chosen name
#
# @vm-state-size: size of the VM state
#
# @date-sec: UTC date of the snapshot in seconds
#
# @date-nsec: fractional part in nano seconds to be used with date-sec
#
# @vm-clock-sec: VM clock relative to boot in seconds
#
# @vm-clock-nsec: fractional part in nano seconds to be used with vm-clock-sec
#
# Since: 1.3
#
##

{ 'type': 'SnapshotInfo',
  'data': { 'id': 'str', 'name': 'str', 'vm-state-size': 'int',
            'date-sec': 'int', 'date-nsec': 'int',
            'vm-clock-sec': 'int', 'vm-clock-nsec': 'int' } }

##
# @ImageInfoSpecificQCow2:
#
# @compat: compatibility level
#
# @lazy-refcounts: #optional on or off; only valid for compat >= 1.1
#
# Since: 1.7
##
{ 'type': 'ImageInfoSpecificQCow2',
  'data': {
      'compat': 'str',
      '*lazy-refcounts': 'bool'
  } }

##
# @ImageInfoSpecificVmdk:
#
# @create-type: The create type of VMDK image
#
# @cid: Content id of image
#
# @parent-cid: Parent VMDK image's cid
#
# @extents: List of extent files
#
# Since: 1.7
##
{ 'type': 'ImageInfoSpecificVmdk',
  'data': {
      'create-type': 'str',
      'cid': 'int',
      'parent-cid': 'int',
      'extents': ['ImageInfo']
  } }

##
# @ImageInfoSpecific:
#
# A discriminated record of image format specific information structures.
#
# Since: 1.7
##

{ 'union': 'ImageInfoSpecific',
  'data': {
      'qcow2': 'ImageInfoSpecificQCow2',
      'vmdk': 'ImageInfoSpecificVmdk'
  } }

##
# @ImageInfo:
#
# Information about a QEMU image file
#
# @filename: name of the image file
#
# @format: format of the image file
#
# @virtual-size: maximum capacity in bytes of the image
#
# @actual-size: #optional actual size on disk in bytes of the image
#
# @dirty-flag: #optional true if image is not cleanly closed
#
# @cluster-size: #optional size of a cluster in bytes
#
# @encrypted: #optional true if the image is encrypted
#
# @compressed: #optional true if the image is compressed (Since 1.7)
#
# @backing-filename: #optional name of the backing file
#
# @full-backing-filename: #optional full path of the backing file
#
# @backing-filename-format: #optional the format of the backing file
#
# @snapshots: #optional list of VM snapshots
#
# @backing-image: #optional info of the backing image (since 1.6)
#
# @format-specific: #optional structure supplying additional format-specific
# information (since 1.7)
#
# Since: 1.3
#
##

{ 'type': 'ImageInfo',
  'data': {'filename': 'str', 'format': 'str', '*dirty-flag': 'bool',
           '*actual-size': 'int', 'virtual-size': 'int',
           '*cluster-size': 'int', '*encrypted': 'bool', '*compressed': 'bool',
           '*backing-filename': 'str', '*full-backing-filename': 'str',
           '*backing-filename-format': 'str', '*snapshots': ['SnapshotInfo'],
           '*backing-image': 'ImageInfo',
           '*format-specific': 'ImageInfoSpecific' } }

##
# @ImageCheck:
#
# Information about a QEMU image file check
#
# @filename: name of the image file checked
#
# @format: format of the image file checked
#
# @check-errors: number of unexpected errors occurred during check
#
# @image-end-offset: #optional offset (in bytes) where the image ends, this
#                    field is present if the driver for the image format
#                    supports it
#
# @corruptions: #optional number of corruptions found during the check if any
#
# @leaks: #optional number of leaks found during the check if any
#
# @corruptions-fixed: #optional number of corruptions fixed during the check
#                     if any
#
# @leaks-fixed: #optional number of leaks fixed during the check if any
#
# @total-clusters: #optional total number of clusters, this field is present
#                  if the driver for the image format supports it
#
# @allocated-clusters: #optional total number of allocated clusters, this
#                      field is present if the driver for the image format
#                      supports it
#
# @fragmented-clusters: #optional total number of fragmented clusters, this
#                       field is present if the driver for the image format
#                       supports it
#
# @compressed-clusters: #optional total number of compressed clusters, this
#                       field is present if the driver for the image format
#                       supports it
#
# Since: 1.4
#
##

{ 'type': 'ImageCheck',
  'data': {'filename': 'str', 'format': 'str', 'check-errors': 'int',
           '*image-end-offset': 'int', '*corruptions': 'int', '*leaks': 'int',
           '*corruptions-fixed': 'int', '*leaks-fixed': 'int',
           '*total-clusters': 'int', '*allocated-clusters': 'int',
           '*fragmented-clusters': 'int', '*compressed-clusters': 'int' } }

##
# @StatusInfo:
#
# Information about VCPU run state
#
# @running: true if all VCPUs are runnable, false if not runnable
#
# @singlestep: true if VCPUs are in single-step mode
#
# @status: the virtual machine @RunState
#
# Since:  0.14.0
#
# Notes: @singlestep is enabled through the GDB stub
##
{ 'type': 'StatusInfo',
  'data': {'running': 'bool', 'singlestep': 'bool', 'status': 'RunState'} }

##
# @query-status:
#
# Query the run status of all VCPUs
#
# Returns: @StatusInfo reflecting all VCPUs
#
# Since:  0.14.0
##
{ 'command': 'query-status', 'returns': 'StatusInfo' }

##
# @UuidInfo:
#
# Guest UUID information.
#
# @UUID: the UUID of the guest
#
# Since: 0.14.0
#
# Notes: If no UUID was specified for the guest, a null UUID is returned.
##
{ 'type': 'UuidInfo', 'data': {'UUID': 'str'} }

##
# @query-uuid:
#
# Query the guest UUID information.
#
# Returns: The @UuidInfo for the guest
#
# Since 0.14.0
##
{ 'command': 'query-uuid', 'returns': 'UuidInfo' }

##
# @ChardevInfo:
#
# Information about a character device.
#
# @label: the label of the character device
#
# @filename: the filename of the character device
#
# Notes: @filename is encoded using the QEMU command line character device
#        encoding.  See the QEMU man page for details.
#
# Since: 0.14.0
##
{ 'type': 'ChardevInfo', 'data': {'label': 'str', 'filename': 'str'} }

##
# @query-chardev:
#
# Returns information about current character devices.
#
# Returns: a list of @ChardevInfo
#
# Since: 0.14.0
##
{ 'command': 'query-chardev', 'returns': ['ChardevInfo'] }

##
# @DataFormat:
#
# An enumeration of data format.
#
# @utf8: Data is a UTF-8 string (RFC 3629)
#
# @base64: Data is Base64 encoded binary (RFC 3548)
#
# Since: 1.4
##
{ 'enum': 'DataFormat',
  'data': [ 'utf8', 'base64' ] }

##
# @ringbuf-write:
#
# Write to a ring buffer character device.
#
# @device: the ring buffer character device name
#
# @data: data to write
#
# @format: #optional data encoding (default 'utf8').
#          - base64: data must be base64 encoded text.  Its binary
#            decoding gets written.
#            Bug: invalid base64 is currently not rejected.
#            Whitespace *is* invalid.
#          - utf8: data's UTF-8 encoding is written
#          - data itself is always Unicode regardless of format, like
#            any other string.
#
# Returns: Nothing on success
#
# Since: 1.4
##
{ 'command': 'ringbuf-write',
  'data': {'device': 'str', 'data': 'str',
           '*format': 'DataFormat'} }

##
# @ringbuf-read:
#
# Read from a ring buffer character device.
#
# @device: the ring buffer character device name
#
# @size: how many bytes to read at most
#
# @format: #optional data encoding (default 'utf8').
#          - base64: the data read is returned in base64 encoding.
#          - utf8: the data read is interpreted as UTF-8.
#            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.
#          - The return value is always Unicode regardless of format,
#            like any other string.
#
# Returns: data read from the device
#
# Since: 1.4
##
{ 'command': 'ringbuf-read',
  'data': {'device': 'str', 'size': 'int', '*format': 'DataFormat'},
  'returns': 'str' }

##
# @CommandInfo:
#
# Information about a QMP command
#
# @name: The command name
#
# Since: 0.14.0
##
{ 'type': 'CommandInfo', 'data': {'name': 'str'} }

##
# @query-commands:
#
# Return a list of supported QMP commands by this server
#
# Returns: A list of @CommandInfo for all supported commands
#
# Since: 0.14.0
##
{ 'command': 'query-commands', 'returns': ['CommandInfo'] }

##
# @EventInfo:
#
# Information about a QMP event
#
# @name: The event name
#
# Since: 1.2.0
##
{ 'type': 'EventInfo', 'data': {'name': 'str'} }

##
# @query-events:
#
# Return a list of supported QMP events by this server
#
# Returns: A list of @EventInfo for all supported events
#
# Since: 1.2.0
##
{ 'command': 'query-events', 'returns': ['EventInfo'] }

##
# @MigrationStats
#
# Detailed migration status.
#
# @transferred: amount of bytes already transferred to the target VM
#
# @remaining: amount of bytes remaining to be transferred to the target VM
#
# @total: total amount of bytes involved in the migration process
#
# @duplicate: number of duplicate (zero) pages (since 1.2)
#
# @skipped: number of skipped zero pages (since 1.5)
#
# @normal : number of normal pages (since 1.2)
#
# @normal-bytes: number of normal bytes sent (since 1.2)
#
# @dirty-pages-rate: number of pages dirtied by second by the
#        guest (since 1.3)
#
# @mbps: throughput in megabits/sec. (since 1.6)
#
# Since: 0.14.0
##
{ 'type': 'MigrationStats',
  'data': {'transferred': 'int', 'remaining': 'int', 'total': 'int' ,
           'duplicate': 'int', 'skipped': 'int', 'normal': 'int',
           'normal-bytes': 'int', 'dirty-pages-rate' : 'int',
           'mbps' : 'number' } }

##
# @XBZRLECacheStats
#
# Detailed XBZRLE migration cache statistics
#
# @cache-size: XBZRLE cache size
#
# @bytes: amount of bytes already transferred to the target VM
#
# @pages: amount of pages transferred to the target VM
#
# @cache-miss: number of cache miss
#
# @overflow: number of overflows
#
# Since: 1.2
##
{ 'type': 'XBZRLECacheStats',
  'data': {'cache-size': 'int', 'bytes': 'int', 'pages': 'int',
           'cache-miss': 'int', 'overflow': 'int' } }

##
# @MigrationInfo
#
# Information about current migration process.
#
# @status: #optional string describing the current migration status.
#          As of 0.14.0 this can be 'active', 'completed', 'failed' or
#          'cancelled'. If this field is not returned, no migration process
#          has been initiated
#
# @ram: #optional @MigrationStats containing detailed migration
#       status, only returned if status is 'active' or
#       'completed'. 'comppleted' (since 1.2)
#
# @disk: #optional @MigrationStats containing detailed disk migration
#        status, only returned if status is 'active' and it is a block
#        migration
#
# @xbzrle-cache: #optional @XBZRLECacheStats containing detailed XBZRLE
#                migration statistics, only returned if XBZRLE feature is on and
#                status is 'active' or 'completed' (since 1.2)
#
# @total-time: #optional total amount of milliseconds since migration started.
#        If migration has ended, it returns the total migration
#        time. (since 1.2)
#
# @downtime: #optional only present when migration finishes correctly
#        total downtime in milliseconds for the guest.
#        (since 1.3)
#
# @expected-downtime: #optional only present while migration is active
#        expected downtime in milliseconds for the guest in last walk
#        of the dirty bitmap. (since 1.3)
#
# @setup-time: #optional amount of setup time in milliseconds _before_ the
#        iterations begin but _after_ the QMP command is issued. This is designed
#        to provide an accounting of any activities (such as RDMA pinning) which
#        may be expensive, but do not actually occur during the iterative
#        migration rounds themselves. (since 1.6)
#
# Since: 0.14.0
##
{ 'type': 'MigrationInfo',
  'data': {'*status': 'str', '*ram': 'MigrationStats',
           '*disk': 'MigrationStats',
           '*xbzrle-cache': 'XBZRLECacheStats',
           '*total-time': 'int',
           '*expected-downtime': 'int',
           '*downtime': 'int',
           '*setup-time': 'int'} }

##
# @query-migrate
#
# Returns information about current migration process.
#
# Returns: @MigrationInfo
#
# Since: 0.14.0
##
{ 'command': 'query-migrate', 'returns': 'MigrationInfo' }

##
# @MigrationCapability
#
# Migration capabilities enumeration
#
# @xbzrle: Migration supports xbzrle (Xor Based Zero Run Length Encoding).
#          This feature allows us to minimize migration traffic for certain work
#          loads, by sending compressed difference of the pages
#
# @x-rdma-pin-all: Controls whether or not the entire VM memory footprint is
#          mlock()'d on demand or all at once. Refer to docs/rdma.txt for usage.
#          Disabled by default. Experimental: may (or may not) be renamed after
#          further testing is complete. (since 1.6)
#
# @zero-blocks: During storage migration encode blocks of zeroes efficiently. This
#          essentially saves 1MB of zeroes per block on the wire. Enabling requires
#          source and target VM to support this feature. To enable it is sufficient
#          to enable the capability on the source VM. The feature is disabled by
#          default. (since 1.6)
#
# @auto-converge: If enabled, QEMU will automatically throttle down the guest
#          to speed up convergence of RAM migration. (since 1.6)
#
# Since: 1.2
##
{ 'enum': 'MigrationCapability',
  'data': ['xbzrle', 'x-rdma-pin-all', 'auto-converge', 'zero-blocks'] }

##
# @MigrationCapabilityStatus
#
# Migration capability information
#
# @capability: capability enum
#
# @state: capability state bool
#
# Since: 1.2
##
{ 'type': 'MigrationCapabilityStatus',
  'data': { 'capability' : 'MigrationCapability', 'state' : 'bool' } }

##
# @migrate-set-capabilities
#
# Enable/Disable the following migration capabilities (like xbzrle)
#
# @capabilities: json array of capability modifications to make
#
# Since: 1.2
##
{ 'command': 'migrate-set-capabilities',
  'data': { 'capabilities': ['MigrationCapabilityStatus'] } }

##
# @query-migrate-capabilities
#
# Returns information about the current migration capabilities status
#
# Returns: @MigrationCapabilitiesStatus
#
# Since: 1.2
##
{ 'command': 'query-migrate-capabilities', 'returns':   ['MigrationCapabilityStatus']}

##
# @MouseInfo:
#
# Information about a mouse device.
#
# @name: the name of the mouse device
#
# @index: the index of the mouse device
#
# @current: true if this device is currently receiving mouse events
#
# @absolute: true if this device supports absolute coordinates as input
#
# Since: 0.14.0
##
{ 'type': 'MouseInfo',
  'data': {'name': 'str', 'index': 'int', 'current': 'bool',
           'absolute': 'bool'} }

##
# @query-mice:
#
# Returns information about each active mouse device
#
# Returns: a list of @MouseInfo for each device
#
# Since: 0.14.0
##
{ 'command': 'query-mice', 'returns': ['MouseInfo'] }

##
# @CpuInfo:
#
# Information about a virtual CPU
#
# @CPU: the index of the virtual CPU
#
# @current: this only exists for backwards compatible and should be ignored
#
# @halted: true if the virtual CPU is in the halt state.  Halt usually refers
#          to a processor specific low power mode.
#
# @pc: #optional If the target is i386 or x86_64, this is the 64-bit instruction
#                pointer.
#                If the target is Sparc, this is the PC component of the
#                instruction pointer.
#
# @nip: #optional If the target is PPC, the instruction pointer
#
# @npc: #optional If the target is Sparc, the NPC component of the instruction
#                 pointer
#
# @PC: #optional If the target is MIPS, the instruction pointer
#
# @thread_id: ID of the underlying host thread
#
# Since: 0.14.0
#
# Notes: @halted is a transient state that changes frequently.  By the time the
#        data is sent to the client, the guest may no longer be halted.
##
{ 'type': 'CpuInfo',
  'data': {'CPU': 'int', 'current': 'bool', 'halted': 'bool', '*pc': 'int',
           '*nip': 'int', '*npc': 'int', '*PC': 'int', 'thread_id': 'int'} }

##
# @query-cpus:
#
# Returns a list of information about each virtual CPU.
#
# Returns: a list of @CpuInfo for each virtual CPU
#
# Since: 0.14.0
##
{ 'command': 'query-cpus', 'returns': ['CpuInfo'] }

##
# @BlockDeviceInfo:
#
# Information about the backing device for a block device.
#
# @file: the filename of the backing device
#
# @ro: true if the backing device was open read-only
#
# @drv: the name of the block format used to open the backing device. As of
#       0.14.0 this can be: 'blkdebug', 'bochs', 'cloop', 'cow', 'dmg',
#       'file', 'file', 'ftp', 'ftps', 'host_cdrom', 'host_device',
#       'host_floppy', 'http', 'https', 'nbd', 'parallels', 'qcow',
#       'qcow2', 'raw', 'tftp', 'vdi', 'vmdk', 'vpc', 'vvfat'
#
# @backing_file: #optional the name of the backing file (for copy-on-write)
#
# @backing_file_depth: number of files in the backing file chain (since: 1.2)
#
# @encrypted: true if the backing device is encrypted
#
# @encryption_key_missing: true if the backing device is encrypted but an
#                          valid encryption key is missing
#
# @bps: total throughput limit in bytes per second is specified
#
# @bps_rd: read throughput limit in bytes per second is specified
#
# @bps_wr: write throughput limit in bytes per second is specified
#
# @iops: total I/O operations per second is specified
#
# @iops_rd: read I/O operations per second is specified
#
# @iops_wr: write I/O operations per second is specified
#
# @image: the info of image used (since: 1.6)
#
# @bps_max: #optional total max in bytes (Since 1.7)
#
# @bps_rd_max: #optional read max in bytes (Since 1.7)
#
# @bps_wr_max: #optional write max in bytes (Since 1.7)
#
# @iops_max: #optional total I/O operations max (Since 1.7)
#
# @iops_rd_max: #optional read I/O operations max (Since 1.7)
#
# @iops_wr_max: #optional write I/O operations max (Since 1.7)
#
# @iops_size: #optional an I/O size in bytes (Since 1.7)
#
# Since: 0.14.0
#
# Notes: This interface is only found in @BlockInfo.
##
{ 'type': 'BlockDeviceInfo',
  'data': { 'file': 'str', 'ro': 'bool', 'drv': 'str',
            '*backing_file': 'str', 'backing_file_depth': 'int',
            'encrypted': 'bool', 'encryption_key_missing': 'bool',
            'bps': 'int', 'bps_rd': 'int', 'bps_wr': 'int',
            'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int',
            'image': 'ImageInfo',
            '*bps_max': 'int', '*bps_rd_max': 'int',
            '*bps_wr_max': 'int', '*iops_max': 'int',
            '*iops_rd_max': 'int', '*iops_wr_max': 'int',
            '*iops_size': 'int' } }

##
# @BlockDeviceIoStatus:
#
# An enumeration of block device I/O status.
#
# @ok: The last I/O operation has succeeded
#
# @failed: The last I/O operation has failed
#
# @nospace: The last I/O operation has failed due to a no-space condition
#
# Since: 1.0
##
{ 'enum': 'BlockDeviceIoStatus', 'data': [ 'ok', 'failed', 'nospace' ] }

##
# @BlockDeviceMapEntry:
#
# Entry in the metadata map of the device (returned by "qemu-img map")
#
# @start: Offset in the image of the first byte described by this entry
#         (in bytes)
#
# @length: Length of the range described by this entry (in bytes)
#
# @depth: Number of layers (0 = top image, 1 = top image's backing file, etc.)
#         before reaching one for which the range is allocated.  The value is
#         in the range 0 to the depth of the image chain - 1.
#
# @zero: the sectors in this range read as zeros
#
# @data: reading the image will actually read data from a file (in particular,
#        if @offset is present this means that the sectors are not simply
#        preallocated, but contain actual data in raw format)
#
# @offset: if present, the image file stores the data for this range in
#          raw format at the given offset.
#
# Since 1.7
##
{ 'type': 'BlockDeviceMapEntry',
  'data': { 'start': 'int', 'length': 'int', 'depth': 'int', 'zero': 'bool',
            'data': 'bool', '*offset': 'int' } }

##
# @BlockDirtyInfo:
#
# Block dirty bitmap information.
#
# @count: number of dirty bytes according to the dirty bitmap
#
# @granularity: granularity of the dirty bitmap in bytes (since 1.4)
#
# Since: 1.3
##
{ 'type': 'BlockDirtyInfo',
  'data': {'count': 'int', 'granularity': 'int'} }

##
# @BlockInfo:
#
# Block device information.  This structure describes a virtual device and
# the backing device associated with it.
#
# @device: The device name associated with the virtual device.
#
# @type: This field is returned only for compatibility reasons, it should
#        not be used (always returns 'unknown')
#
# @removable: True if the device supports removable media.
#
# @locked: True if the guest has locked this device from having its media
#          removed
#
# @tray_open: #optional True if the device has a tray and it is open
#             (only present if removable is true)
#
# @dirty-bitmaps: #optional dirty bitmaps information (only present if the
#                 driver has one or more dirty bitmaps) (Since 2.0)
#
# @io-status: #optional @BlockDeviceIoStatus. Only present if the device
#             supports it and the VM is configured to stop on errors
#
# @inserted: #optional @BlockDeviceInfo describing the device if media is
#            present
#
# Since:  0.14.0
##
{ 'type': 'BlockInfo',
  'data': {'device': 'str', 'type': 'str', 'removable': 'bool',
           'locked': 'bool', '*inserted': 'BlockDeviceInfo',
           '*tray_open': 'bool', '*io-status': 'BlockDeviceIoStatus',
           '*dirty-bitmaps': ['BlockDirtyInfo'] } }

##
# @query-block:
#
# Get a list of BlockInfo for all virtual block devices.
#
# Returns: a list of @BlockInfo describing each virtual block device
#
# Since: 0.14.0
##
{ 'command': 'query-block', 'returns': ['BlockInfo'] }

##
# @BlockDeviceStats:
#
# Statistics of a virtual block device or a block backing device.
#
# @rd_bytes:      The number of bytes read by the device.
#
# @wr_bytes:      The number of bytes written by the device.
#
# @rd_operations: The number of read operations performed by the device.
#
# @wr_operations: The number of write operations performed by the device.
#
# @flush_operations: The number of cache flush operations performed by the
#                    device (since 0.15.0)
#
# @flush_total_time_ns: Total time spend on cache flushes in nano-seconds
#                       (since 0.15.0).
#
# @wr_total_time_ns: Total time spend on writes in nano-seconds (since 0.15.0).
#
# @rd_total_time_ns: Total_time_spend on reads in nano-seconds (since 0.15.0).
#
# @wr_highest_offset: The offset after the greatest byte written to the
#                     device.  The intended use of this information is for
#                     growable sparse files (like qcow2) that are used on top
#                     of a physical device.
#
# Since: 0.14.0
##
{ 'type': 'BlockDeviceStats',
  'data': {'rd_bytes': 'int', 'wr_bytes': 'int', 'rd_operations': 'int',
           'wr_operations': 'int', 'flush_operations': 'int',
           'flush_total_time_ns': 'int', 'wr_total_time_ns': 'int',
           'rd_total_time_ns': 'int', 'wr_highest_offset': 'int' } }

##
# @BlockStats:
#
# Statistics of a virtual block device or a block backing device.
#
# @device: #optional If the stats are for a virtual block device, the name
#          corresponding to the virtual block device.
#
# @stats:  A @BlockDeviceStats for the device.
#
# @parent: #optional This may point to the backing block device if this is a
#          a virtual block device.  If it's a backing block, this will point
#          to the backing file is one is present.
#
# Since: 0.14.0
##
{ 'type': 'BlockStats',
  'data': {'*device': 'str', 'stats': 'BlockDeviceStats',
           '*parent': 'BlockStats'} }

##
# @query-blockstats:
#
# Query the @BlockStats for all virtual block devices.
#
# Returns: A list of @BlockStats for each virtual block devices.
#
# Since: 0.14.0
##
{ 'command': 'query-blockstats', 'returns': ['BlockStats'] }

##
# @VncClientInfo:
#
# Information about a connected VNC client.
#
# @host: The host name of the client.  QEMU tries to resolve this to a DNS name
#        when possible.
#
# @family: 'ipv6' if the client is connected via IPv6 and TCP
#          'ipv4' if the client is connected via IPv4 and TCP
#          'unix' if the client is connected via a unix domain socket
#          'unknown' otherwise
#
# @service: The service name of the client's port.  This may depends on the
#           host system's service database so symbolic names should not be
#           relied on.
#
# @x509_dname: #optional If x509 authentication is in use, the Distinguished
#              Name of the client.
#
# @sasl_username: #optional If SASL authentication is in use, the SASL username
#                 used for authentication.
#
# Since: 0.14.0
##
{ 'type': 'VncClientInfo',
  'data': {'host': 'str', 'family': 'str', 'service': 'str',
           '*x509_dname': 'str', '*sasl_username': 'str'} }

##
# @VncInfo:
#
# Information about the VNC session.
#
# @enabled: true if the VNC server is enabled, false otherwise
#
# @host: #optional The hostname the VNC server is bound to.  This depends on
#        the name resolution on the host and may be an IP address.
#
# @family: #optional 'ipv6' if the host is listening for IPv6 connections
#                    'ipv4' if the host is listening for IPv4 connections
#                    'unix' if the host is listening on a unix domain socket
#                    'unknown' otherwise
#
# @service: #optional The service name of the server's port.  This may depends
#           on the host system's service database so symbolic names should not
#           be relied on.
#
# @auth: #optional the current authentication type used by the server
#        'none' if no authentication is being used
#        'vnc' if VNC authentication is being used
#        'vencrypt+plain' if VEncrypt is used with plain text authentication
#        'vencrypt+tls+none' if VEncrypt is used with TLS and no authentication
#        'vencrypt+tls+vnc' if VEncrypt is used with TLS and VNC authentication
#        'vencrypt+tls+plain' if VEncrypt is used with TLS and plain text auth
#        'vencrypt+x509+none' if VEncrypt is used with x509 and no auth
#        'vencrypt+x509+vnc' if VEncrypt is used with x509 and VNC auth
#        'vencrypt+x509+plain' if VEncrypt is used with x509 and plain text auth
#        'vencrypt+tls+sasl' if VEncrypt is used with TLS and SASL auth
#        'vencrypt+x509+sasl' if VEncrypt is used with x509 and SASL auth
#
# @clients: a list of @VncClientInfo of all currently connected clients
#
# Since: 0.14.0
##
{ 'type': 'VncInfo',
  'data': {'enabled': 'bool', '*host': 'str', '*family': 'str',
           '*service': 'str', '*auth': 'str', '*clients': ['VncClientInfo']} }

##
# @query-vnc:
#
# Returns information about the current VNC server
#
# Returns: @VncInfo
#
# Since: 0.14.0
##
{ 'command': 'query-vnc', 'returns': 'VncInfo' }

##
# @SpiceChannel
#
# Information about a SPICE client channel.
#
# @host: The host name of the client.  QEMU tries to resolve this to a DNS name
#        when possible.
#
# @family: 'ipv6' if the client is connected via IPv6 and TCP
#          'ipv4' if the client is connected via IPv4 and TCP
#          'unix' if the client is connected via a unix domain socket
#          'unknown' otherwise
#
# @port: The client's port number.
#
# @connection-id: SPICE connection id number.  All channels with the same id
#                 belong to the same SPICE session.
#
# @connection-type: SPICE channel type number.  "1" is the main control
#                   channel, filter for this one if you want to track spice
#                   sessions only
#
# @channel-id: SPICE channel ID number.  Usually "0", might be different when
#              multiple channels of the same type exist, such as multiple
#              display channels in a multihead setup
#
# @tls: true if the channel is encrypted, false otherwise.
#
# Since: 0.14.0
##
{ 'type': 'SpiceChannel',
  'data': {'host': 'str', 'family': 'str', 'port': 'str',
           'connection-id': 'int', 'channel-type': 'int', 'channel-id': 'int',
           'tls': 'bool'} }

##
# @SpiceQueryMouseMode
#
# An enumeration of Spice mouse states.
#
# @client: Mouse cursor position is determined by the client.
#
# @server: Mouse cursor position is determined by the server.
#
# @unknown: No information is available about mouse mode used by
#           the spice server.
#
# Note: spice/enums.h has a SpiceMouseMode already, hence the name.
#
# Since: 1.1
##
{ 'enum': 'SpiceQueryMouseMode',
  'data': [ 'client', 'server', 'unknown' ] }

##
# @SpiceInfo
#
# Information about the SPICE session.
#
# @enabled: true if the SPICE server is enabled, false otherwise
#
# @migrated: true if the last guest migration completed and spice
#            migration had completed as well. false otherwise.
#
# @host: #optional The hostname the SPICE server is bound to.  This depends on
#        the name resolution on the host and may be an IP address.
#
# @port: #optional The SPICE server's port number.
#
# @compiled-version: #optional SPICE server version.
#
# @tls-port: #optional The SPICE server's TLS port number.
#
# @auth: #optional the current authentication type used by the server
#        'none'  if no authentication is being used
#        'spice' uses SASL or direct TLS authentication, depending on command
#                line options
#
# @mouse-mode: The mode in which the mouse cursor is displayed currently. Can
#              be determined by the client or the server, or unknown if spice
#              server doesn't provide this information.
#
#              Since: 1.1
#
# @channels: a list of @SpiceChannel for each active spice channel
#
# Since: 0.14.0
##
{ 'type': 'SpiceInfo',
  'data': {'enabled': 'bool', 'migrated': 'bool', '*host': 'str', '*port': 'int',
           '*tls-port': 'int', '*auth': 'str', '*compiled-version': 'str',
           'mouse-mode': 'SpiceQueryMouseMode', '*channels': ['SpiceChannel']} }

##
# @query-spice
#
# Returns information about the current SPICE server
#
# Returns: @SpiceInfo
#
# Since: 0.14.0
##
{ 'command': 'query-spice', 'returns': 'SpiceInfo' }

##
# @BalloonInfo:
#
# Information about the guest balloon device.
#
# @actual: the number of bytes the balloon currently contains
#
# Since: 0.14.0
#
##
{ 'type': 'BalloonInfo', 'data': {'actual': 'int' } }

##
# @query-balloon:
#
# Return information about the balloon device.
#
# Returns: @BalloonInfo on success
#          If the balloon driver is enabled but not functional because the KVM
#          kernel module cannot support it, KvmMissingCap
#          If no balloon device is present, DeviceNotActive
#
# Since: 0.14.0
##
{ 'command': 'query-balloon', 'returns': 'BalloonInfo' }

##
# @PciMemoryRange:
#
# A PCI device memory region
#
# @base: the starting address (guest physical)
#
# @limit: the ending address (guest physical)
#
# Since: 0.14.0
##
{ 'type': 'PciMemoryRange', 'data': {'base': 'int', 'limit': 'int'} }

##
# @PciMemoryRegion
#
# Information about a PCI device I/O region.
#
# @bar: the index of the Base Address Register for this region
#
# @type: 'io' if the region is a PIO region
#        'memory' if the region is a MMIO region
#
# @prefetch: #optional if @type is 'memory', true if the memory is prefetchable
#
# @mem_type_64: #optional if @type is 'memory', true if the BAR is 64-bit
#
# Since: 0.14.0
##
{ 'type': 'PciMemoryRegion',
  'data': {'bar': 'int', 'type': 'str', 'address': 'int', 'size': 'int',
           '*prefetch': 'bool', '*mem_type_64': 'bool' } }

##
# @PciBridgeInfo:
#
# Information about a PCI Bridge device
#
# @bus.number: primary bus interface number.  This should be the number of the
#              bus the device resides on.
#
# @bus.secondary: secondary bus interface number.  This is the number of the
#                 main bus for the bridge
#
# @bus.subordinate: This is the highest number bus that resides below the
#                   bridge.
#
# @bus.io_range: The PIO range for all devices on this bridge
#
# @bus.memory_range: The MMIO range for all devices on this bridge
#
# @bus.prefetchable_range: The range of prefetchable MMIO for all devices on
#                          this bridge
#
# @devices: a list of @PciDeviceInfo for each device on this bridge
#
# Since: 0.14.0
##
{ 'type': 'PciBridgeInfo',
  'data': {'bus': { 'number': 'int', 'secondary': 'int', 'subordinate': 'int',
                    'io_range': 'PciMemoryRange',
                    'memory_range': 'PciMemoryRange',
                    'prefetchable_range': 'PciMemoryRange' },
           '*devices': ['PciDeviceInfo']} }

##
# @PciDeviceInfo:
#
# Information about a PCI device
#
# @bus: the bus number of the device
#
# @slot: the slot the device is located in
#
# @function: the function of the slot used by the device
#
# @class_info.desc: #optional a string description of the device's class
#
# @class_info.class: the class code of the device
#
# @id.device: the PCI device id
#
# @id.vendor: the PCI vendor id
#
# @irq: #optional if an IRQ is assigned to the device, the IRQ number
#
# @qdev_id: the device name of the PCI device
#
# @pci_bridge: if the device is a PCI bridge, the bridge information
#
# @regions: a list of the PCI I/O regions associated with the device
#
# Notes: the contents of @class_info.desc are not stable and should only be
#        treated as informational.
#
# Since: 0.14.0
##
{ 'type': 'PciDeviceInfo',
  'data': {'bus': 'int', 'slot': 'int', 'function': 'int',
           'class_info': {'*desc': 'str', 'class': 'int'},
           'id': {'device': 'int', 'vendor': 'int'},
           '*irq': 'int', 'qdev_id': 'str', '*pci_bridge': 'PciBridgeInfo',
           'regions': ['PciMemoryRegion']} }

##
# @PciInfo:
#
# Information about a PCI bus
#
# @bus: the bus index
#
# @devices: a list of devices on this bus
#
# Since: 0.14.0
##
{ 'type': 'PciInfo', 'data': {'bus': 'int', 'devices': ['PciDeviceInfo']} }

##
# @query-pci:
#
# Return information about the PCI bus topology of the guest.
#
# Returns: a list of @PciInfo for each PCI bus
#
# Since: 0.14.0
##
{ 'command': 'query-pci', 'returns': ['PciInfo'] }

##
# @BlockdevOnError:
#
# An enumeration of possible behaviors for errors on I/O operations.
# The exact meaning depends on whether the I/O was initiated by a guest
# or by a block job
#
# @report: for guest operations, report the error to the guest;
#          for jobs, cancel the job
#
# @ignore: ignore the error, only report a QMP event (BLOCK_IO_ERROR
#          or BLOCK_JOB_ERROR)
#
# @enospc: same as @stop on ENOSPC, same as @report otherwise.
#
# @stop: for guest operations, stop the virtual machine;
#        for jobs, pause the job
#
# Since: 1.3
##
{ 'enum': 'BlockdevOnError',
  'data': ['report', 'ignore', 'enospc', 'stop'] }

##
# @MirrorSyncMode:
#
# An enumeration of possible behaviors for the initial synchronization
# phase of storage mirroring.
#
# @top: copies data in the topmost image to the destination
#
# @full: copies data from all images to the destination
#
# @none: only copy data written from now on
#
# Since: 1.3
##
{ 'enum': 'MirrorSyncMode',
  'data': ['top', 'full', 'none'] }

##
# @BlockJobType:
#
# Type of a block job.
#
# @commit: block commit job type, see "block-commit"
#
# @stream: block stream job type, see "block-stream"
#
# @mirror: drive mirror job type, see "drive-mirror"
#
# @backup: drive backup job type, see "drive-backup"
#
# Since: 1.7
##
{ 'enum': 'BlockJobType',
  'data': ['commit', 'stream', 'mirror', 'backup'] }

##
# @BlockJobInfo:
#
# Information about a long-running block device operation.
#
# @type: the job type ('stream' for image streaming)
#
# @device: the block device name
#
# @len: the maximum progress value
#
# @busy: false if the job is known to be in a quiescent state, with
#        no pending I/O.  Since 1.3.
#
# @paused: whether the job is paused or, if @busy is true, will
#          pause itself as soon as possible.  Since 1.3.
#
# @offset: the current progress value
#
# @speed: the rate limit, bytes per second
#
# @io-status: the status of the job (since 1.3)
#
# Since: 1.1
##
{ 'type': 'BlockJobInfo',
  'data': {'type': 'str', 'device': 'str', 'len': 'int',
           'offset': 'int', 'busy': 'bool', 'paused': 'bool', 'speed': 'int',
           'io-status': 'BlockDeviceIoStatus'} }

##
# @query-block-jobs:
#
# Return information about long-running block device operations.
#
# Returns: a list of @BlockJobInfo for each active block job
#
# Since: 1.1
##
{ 'command': 'query-block-jobs', 'returns': ['BlockJobInfo'] }

##
# @quit:
#
# This command will cause the QEMU process to exit gracefully.  While every
# attempt is made to send the QMP response before terminating, this is not
# guaranteed.  When using this interface, a premature EOF would not be
# unexpected.
#
# Since: 0.14.0
##
{ 'command': 'quit' }

##
# @stop:
#
# Stop all guest VCPU execution.
#
# Since:  0.14.0
#
# Notes:  This function will succeed even if the guest is already in the stopped
#         state.  In "inmigrate" state, it will ensure that the guest
#         remains paused once migration finishes, as if the -S option was
#         passed on the command line.
##
{ 'command': 'stop' }

##
# @system_reset:
#
# Performs a hard reset of a guest.
#
# Since: 0.14.0
##
{ 'command': 'system_reset' }

##
# @system_powerdown:
#
# Requests that a guest perform a powerdown operation.
#
# Since: 0.14.0
#
# Notes: A guest may or may not respond to this command.  This command
#        returning does not indicate that a guest has accepted the request or
#        that it has shut down.  Many guests will respond to this command by
#        prompting the user in some way.
##
{ 'command': 'system_powerdown' }

##
# @cpu:
#
# This command is a nop that is only provided for the purposes of compatibility.
#
# Since: 0.14.0
#
# Notes: Do not use this command.
##
{ 'command': 'cpu', 'data': {'index': 'int'} }

##
# @cpu-add
#
# Adds CPU with specified ID
#
# @id: ID of CPU to be created, valid values [0..max_cpus)
#
# Returns: Nothing on success
#
# Since 1.5
##
{ 'command': 'cpu-add', 'data': {'id': 'int'} }

##
# @memsave:
#
# Save a portion of guest memory to a file.
#
# @val: the virtual address of the guest to start from
#
# @size: the size of memory region to save
#
# @filename: the file to save the memory to as binary data
#
# @cpu-index: #optional the index of the virtual CPU to use for translating the
#                       virtual address (defaults to CPU 0)
#
# Returns: Nothing on success
#
# Since: 0.14.0
#
# Notes: Errors were not reliably returned until 1.1
##
{ 'command': 'memsave',
  'data': {'val': 'int', 'size': 'int', 'filename': 'str', '*cpu-index': 'int'} }

##
# @pmemsave:
#
# Save a portion of guest physical memory to a file.
#
# @val: the physical address of the guest to start from
#
# @size: the size of memory region to save
#
# @filename: the file to save the memory to as binary data
#
# Returns: Nothing on success
#
# Since: 0.14.0
#
# Notes: Errors were not reliably returned until 1.1
##
{ 'command': 'pmemsave',
  'data': {'val': 'int', 'size': 'int', 'filename': 'str'} }

##
# @cont:
#
# Resume guest VCPU execution.
#
# Since:  0.14.0
#
# Returns:  If successful, nothing
#           If QEMU was started with an encrypted block device and a key has
#              not yet been set, DeviceEncrypted.
#
# Notes:  This command will succeed if the guest is currently running.  It
#         will also succeed if the guest is in the "inmigrate" state; in
#         this case, the effect of the command is to make sure the guest
#         starts once migration finishes, removing the effect of the -S
#         command line option if it was passed.
##
{ 'command': 'cont' }

##
# @system_wakeup:
#
# Wakeup guest from suspend.  Does nothing in case the guest isn't suspended.
#
# Since:  1.1
#
# Returns:  nothing.
##
{ 'command': 'system_wakeup' }

##
# @inject-nmi:
#
# Injects an Non-Maskable Interrupt into all guest's VCPUs.
#
# Returns:  If successful, nothing
#
# Since:  0.14.0
#
# Notes: Only x86 Virtual Machines support this command.
##
{ 'command': 'inject-nmi' }

##
# @set_link:
#
# Sets the link status of a virtual network adapter.
#
# @name: the device name of the virtual network adapter
#
# @up: true to set the link status to be up
#
# Returns: Nothing on success
#          If @name is not a valid network device, DeviceNotFound
#
# Since: 0.14.0
#
# Notes: Not all network adapters support setting link status.  This command
#        will succeed even if the network adapter does not support link status
#        notification.
##
{ 'command': 'set_link', 'data': {'name': 'str', 'up': 'bool'} }

##
# @block_passwd:
#
# This command sets the password of a block device that has not been open
# with a password and requires one.
#
# The two cases where this can happen are a block device is created through
# QEMU's initial command line or a block device is changed through the legacy
# @change interface.
#
# In the event that the block device is created through the initial command
# line, the VM will start in the stopped state regardless of whether '-S' is
# used.  The intention is for a management tool to query the block devices to
# determine which ones are encrypted, set the passwords with this command, and
# then start the guest with the @cont command.
#
# @device:   the name of the device to set the password on
#
# @password: the password to use for the device
#
# Returns: nothing on success
#          If @device is not a valid block device, DeviceNotFound
#          If @device is not encrypted, DeviceNotEncrypted
#
# Notes:  Not all block formats support encryption and some that do are not
#         able to validate that a password is correct.  Disk corruption may
#         occur if an invalid password is specified.
#
# Since: 0.14.0
##
{ 'command': 'block_passwd', 'data': {'device': 'str', 'password': 'str'} }

##
# @balloon:
#
# Request the balloon driver to change its balloon size.
#
# @value: the target size of the balloon in bytes
#
# Returns: Nothing on success
#          If the balloon driver is enabled but not functional because the KVM
#            kernel module cannot support it, KvmMissingCap
#          If no balloon device is present, DeviceNotActive
#
# Notes: This command just issues a request to the guest.  When it returns,
#        the balloon size may not have changed.  A guest can change the balloon
#        size independent of this command.
#
# Since: 0.14.0
##
{ 'command': 'balloon', 'data': {'value': 'int'} }

##
# @block_resize
#
# Resize a block image while a guest is running.
#
# @device:  the name of the device to get the image resized
#
# @size:  new image size in bytes
#
# Returns: nothing on success
#          If @device is not a valid block device, DeviceNotFound
#
# Since: 0.14.0
##
{ 'command': 'block_resize', 'data': { 'device': 'str', 'size': 'int' }}

##
# @NewImageMode
#
# An enumeration that tells QEMU how to set the backing file path in
# a new image file.
#
# @existing: QEMU should look for an existing image file.
#
# @absolute-paths: QEMU should create a new image with absolute paths
# for the backing file. If there is no backing file available, the new
# image will not be backed either.
#
# Since: 1.1
##
{ 'enum': 'NewImageMode',
  'data': [ 'existing', 'absolute-paths' ] }

##
# @BlockdevSnapshot
#
# @device:  the name of the device to generate the snapshot from.
#
# @snapshot-file: the target of the new image. A new file will be created.
#
# @format: #optional the format of the snapshot image, default is 'qcow2'.
#
# @mode: #optional whether and how QEMU should create a new image, default is
#        'absolute-paths'.
##
{ 'type': 'BlockdevSnapshot',
  'data': { 'device': 'str', 'snapshot-file': 'str', '*format': 'str',
            '*mode': 'NewImageMode' } }

##
# @BlockdevSnapshotInternal
#
# @device: the name of the device to generate the snapshot from
#
# @name: the name of the internal snapshot to be created
#
# Notes: In transaction, if @name is empty, or any snapshot matching @name
#        exists, the operation will fail. Only some image formats support it,
#        for example, qcow2, rbd, and sheepdog.
#
# Since: 1.7
##
{ 'type': 'BlockdevSnapshotInternal',
  'data': { 'device': 'str', 'name': 'str' } }

##
# @DriveBackup
#
# @device: the name of the device which should be copied.
#
# @target: the target of the new image. If the file exists, or if it
#          is a device, the existing file/device will be used as the new
#          destination.  If it does not exist, a new file will be created.
#
# @format: #optional the format of the new destination, default is to
#          probe if @mode is 'existing', else the format of the source
#
# @sync: what parts of the disk image should be copied to the destination
#        (all the disk, only the sectors allocated in the topmost image, or
#        only new I/O).
#
# @mode: #optional whether and how QEMU should create a new image, default is
#        'absolute-paths'.
#
# @speed: #optional the maximum speed, in bytes per second
#
# @on-source-error: #optional the action to take on an error on the source,
#                   default 'report'.  'stop' and 'enospc' can only be used
#                   if the block device supports io-status (see BlockInfo).
#
# @on-target-error: #optional the action to take on an error on the target,
#                   default 'report' (no limitations, since this applies to
#                   a different block device than @device).
#
# Note that @on-source-error and @on-target-error only affect background I/O.
# If an error occurs during a guest write request, the device's rerror/werror
# actions will be used.
#
# Since: 1.6
##
{ 'type': 'DriveBackup',
  'data': { 'device': 'str', 'target': 'str', '*format': 'str',
            'sync': 'MirrorSyncMode', '*mode': 'NewImageMode',
            '*speed': 'int',
            '*on-source-error': 'BlockdevOnError',
            '*on-target-error': 'BlockdevOnError' } }

##
# @Abort
#
# This action can be used to test transaction failure.
#
# Since: 1.6
###
{ 'type': 'Abort',
  'data': { } }

##
# @TransactionAction
#
# A discriminated record of operations that can be performed with
# @transaction.
##
{ 'union': 'TransactionAction',
  'data': {
       'blockdev-snapshot-sync': 'BlockdevSnapshot',
       'drive-backup': 'DriveBackup',
       'abort': 'Abort',
       'blockdev-snapshot-internal-sync': 'BlockdevSnapshotInternal'
   } }

##
# @transaction
#
# Executes a number of transactionable QMP commands atomically. If any
# operation fails, then the entire set of actions will be abandoned and the
# appropriate error returned.
#
#  List of:
#  @TransactionAction: information needed for the respective operation
#
# Returns: nothing on success
#          Errors depend on the operations of the transaction
#
# Note: The transaction aborts on the first failure.  Therefore, there will be
# information on only one failed operation returned in an error condition, and
# subsequent actions will not have been attempted.
#
# Since 1.1
##
{ 'command': 'transaction',
  'data': { 'actions': [ 'TransactionAction' ] } }

##
# @blockdev-snapshot-sync
#
# Generates a synchronous snapshot of a block device.
#
# For the arguments, see the documentation of BlockdevSnapshot.
#
# Returns: nothing on success
#          If @device is not a valid block device, DeviceNotFound
#
# Since 0.14.0
##
{ 'command': 'blockdev-snapshot-sync',
  'data': 'BlockdevSnapshot' }

##
# @blockdev-snapshot-internal-sync
#
# Synchronously take an internal snapshot of a block device, when the format
# of the image used supports it.
#
# For the arguments, see the documentation of BlockdevSnapshotInternal.
#
# Returns: nothing on success
#          If @device is not a valid block device, DeviceNotFound
#          If any snapshot matching @name exists, or @name is empty,
#          GenericError
#          If the format of the image used does not support it,
#          BlockFormatFeatureNotSupported
#
# Since 1.7
##
{ 'command': 'blockdev-snapshot-internal-sync',
  'data': 'BlockdevSnapshotInternal' }

##
# @blockdev-snapshot-delete-internal-sync
#
# Synchronously delete an internal snapshot of a block device, when the format
# of the image used support it. The snapshot is identified by name or id or
# both. One of the name or id is required. Return SnapshotInfo for the
# successfully deleted snapshot.
#
# @device: the name of the device to delete the snapshot from
#
# @id: optional the snapshot's ID to be deleted
#
# @name: optional the snapshot's name to be deleted
#
# Returns: SnapshotInfo on success
#          If @device is not a valid block device, DeviceNotFound
#          If snapshot not found, GenericError
#          If the format of the image used does not support it,
#          BlockFormatFeatureNotSupported
#          If @id and @name are both not specified, GenericError
#
# Since 1.7
##
{ 'command': 'blockdev-snapshot-delete-internal-sync',
  'data': { 'device': 'str', '*id': 'str', '*name': 'str'},
  'returns': 'SnapshotInfo' }

##
# @human-monitor-command:
#
# Execute a command on the human monitor and return the output.
#
# @command-line: the command to execute in the human monitor
#
# @cpu-index: #optional The CPU to use for commands that require an implicit CPU
#
# Returns: the output of the command as a string
#
# Since: 0.14.0
#
# Notes: This command only exists as a stop-gap.  Its use is highly
#        discouraged.  The semantics of this command are not guaranteed.
#
#        Known limitations:
#
#        o This command is stateless, this means that commands that depend
#          on state information (such as getfd) might not work
#
#       o Commands that prompt the user for data (eg. 'cont' when the block
#         device is encrypted) don't currently work
##
{ 'command': 'human-monitor-command',
  'data': {'command-line': 'str', '*cpu-index': 'int'},
  'returns': 'str' }

##
# @block-commit
#
# Live commit of data from overlay image nodes into backing nodes - i.e.,
# writes data between 'top' and 'base' into 'base'.
#
# @device:  the name of the device
#
# @base:   #optional The file name of the backing image to write data into.
#                    If not specified, this is the deepest backing image
#
# @top:              The file name of the backing image within the image chain,
#                    which contains the topmost data to be committed down.
#                    Note, the active layer as 'top' is currently unsupported.
#
#                    If top == base, that is an error.
#
#
# @speed:  #optional the maximum speed, in bytes per second
#
# Returns: Nothing on success
#          If commit or stream is already active on this device, DeviceInUse
#          If @device does not exist, DeviceNotFound
#          If image commit is not supported by this device, NotSupported
#          If @base or @top is invalid, a generic error is returned
#          If @top is the active layer, or omitted, a generic error is returned
#          If @speed is invalid, InvalidParameter
#
# Since: 1.3
#
##
{ 'command': 'block-commit',
  'data': { 'device': 'str', '*base': 'str', 'top': 'str',
            '*speed': 'int' } }

##
# @drive-backup
#
# Start a point-in-time copy of a block device to a new destination.  The
# status of ongoing drive-backup operations can be checked with
# query-block-jobs where the BlockJobInfo.type field has the value 'backup'.
# The operation can be stopped before it has completed using the
# block-job-cancel command.
#
# For the arguments, see the documentation of DriveBackup.
#
# Returns: nothing on success
#          If @device is not a valid block device, DeviceNotFound
#
# Since 1.6
##
{ 'command': 'drive-backup', 'data': 'DriveBackup' }

##
# @drive-mirror
#
# Start mirroring a block device's writes to a new destination.
#
# @device:  the name of the device whose writes should be mirrored.
#
# @target: the target of the new image. If the file exists, or if it
#          is a device, the existing file/device will be used as the new
#          destination.  If it does not exist, a new file will be created.
#
# @format: #optional the format of the new destination, default is to
#          probe if @mode is 'existing', else the format of the source
#
# @mode: #optional whether and how QEMU should create a new image, default is
#        'absolute-paths'.
#
# @speed:  #optional the maximum speed, in bytes per second
#
# @sync: what parts of the disk image should be copied to the destination
#        (all the disk, only the sectors allocated in the topmost image, or
#        only new I/O).
#
# @granularity: #optional granularity of the dirty bitmap, default is 64K
#               if the image format doesn't have clusters, 4K if the clusters
#               are smaller than that, else the cluster size.  Must be a
#               power of 2 between 512 and 64M (since 1.4).
#
# @buf-size: #optional maximum amount of data in flight from source to
#            target (since 1.4).
#
# @on-source-error: #optional the action to take on an error on the source,
#                   default 'report'.  'stop' and 'enospc' can only be used
#                   if the block device supports io-status (see BlockInfo).
#
# @on-target-error: #optional the action to take on an error on the target,
#                   default 'report' (no limitations, since this applies to
#                   a different block device than @device).
#
# Returns: nothing on success
#          If @device is not a valid block device, DeviceNotFound
#
# Since 1.3
##
{ 'command': 'drive-mirror',
  'data': { 'device': 'str', 'target': 'str', '*format': 'str',
            'sync': 'MirrorSyncMode', '*mode': 'NewImageMode',
            '*speed': 'int', '*granularity': 'uint32',
            '*buf-size': 'int', '*on-source-error': 'BlockdevOnError',
            '*on-target-error': 'BlockdevOnError' } }

##
# @migrate_cancel
#
# Cancel the current executing migration process.
#
# Returns: nothing on success
#
# Notes: This command succeeds even if there is no migration process running.
#
# Since: 0.14.0
##
{ 'command': 'migrate_cancel' }

##
# @migrate_set_downtime
#
# Set maximum tolerated downtime for migration.
#
# @value: maximum downtime in seconds
#
# Returns: nothing on success
#
# Since: 0.14.0
##
{ 'command': 'migrate_set_downtime', 'data': {'value': 'number'} }

##
# @migrate_set_speed
#
# Set maximum speed for migration.
#
# @value: maximum speed in bytes.
#
# Returns: nothing on success
#
# Notes: A value lesser than zero will be automatically round up to zero.
#
# Since: 0.14.0
##
{ 'command': 'migrate_set_speed', 'data': {'value': 'int'} }

##
# @migrate-set-cache-size
#
# Set XBZRLE cache size
#
# @value: cache size in bytes
#
# The size will be rounded down to the nearest power of 2.
# The cache size can be modified before and during ongoing migration
#
# Returns: nothing on success
#
# Since: 1.2
##
{ 'command': 'migrate-set-cache-size', 'data': {'value': 'int'} }

##
# @query-migrate-cache-size
#
# query XBZRLE cache size
#
# Returns: XBZRLE cache size in bytes
#
# Since: 1.2
##
{ 'command': 'query-migrate-cache-size', 'returns': 'int' }

##
# @ObjectPropertyInfo:
#
# @name: the name of the property
#
# @type: the type of the property.  This will typically come in one of four
#        forms:
#
#        1) A primitive type such as 'u8', 'u16', 'bool', 'str', or 'double'.
#           These types are mapped to the appropriate JSON type.
#
#        2) A legacy type in the form 'legacy<subtype>' where subtype is the
#           legacy qdev typename.  These types are always treated as strings.
#
#        3) A child type in the form 'child<subtype>' where subtype is a qdev
#           device type name.  Child properties create the composition tree.
#
#        4) A link type in the form 'link<subtype>' where subtype is a qdev
#           device type name.  Link properties form the device model graph.
#
# Since: 1.2
##
{ 'type': 'ObjectPropertyInfo',
  'data': { 'name': 'str', 'type': 'str' } }

##
# @qom-list:
#
# This command will list any properties of a object given a path in the object
# model.
#
# @path: the path within the object model.  See @qom-get for a description of
#        this parameter.
#
# Returns: a list of @ObjectPropertyInfo that describe the properties of the
#          object.
#
# Since: 1.2
##
{ 'command': 'qom-list',
  'data': { 'path': 'str' },
  'returns': [ 'ObjectPropertyInfo' ] }

##
# @qom-get:
#
# This command will get a property from a object model path and return the
# value.
#
# @path: The path within the object model.  There are two forms of supported
#        paths--absolute and partial paths.
#
#        Absolute paths are derived from the root object and can follow child<>
#        or link<> properties.  Since they can follow link<> properties, they
#        can be arbitrarily long.  Absolute paths look like absolute filenames
#        and are prefixed  with a leading slash.
#
#        Partial paths look like relative filenames.  They do not begin
#        with a prefix.  The matching rules for partial paths are subtle but
#        designed to make specifying objects easy.  At each level of the
#        composition tree, the partial path is matched as an absolute path.
#        The first match is not returned.  At least two matches are searched
#        for.  A successful result is only returned if only one match is
#        found.  If more than one match is found, a flag is return to
#        indicate that the match was ambiguous.
#
# @property: The property name to read
#
# Returns: The property value.  The type depends on the property type.  legacy<>
#          properties are returned as #str.  child<> and link<> properties are
#          returns as #str pathnames.  All integer property types (u8, u16, etc)
#          are returned as #int.
#
# Since: 1.2
##
{ 'command': 'qom-get',
  'data': { 'path': 'str', 'property': 'str' },
  'returns': 'visitor',
  'gen': 'no' }

##
# @qom-set:
#
# This command will set a property from a object model path.
#
# @path: see @qom-get for a description of this parameter
#
# @property: the property name to set
#
# @value: a value who's type is appropriate for the property type.  See @qom-get
#         for a description of type mapping.
#
# Since: 1.2
##
{ 'command': 'qom-set',
  'data': { 'path': 'str', 'property': 'str', 'value': 'visitor' },
  'gen': 'no' }

##
# @set_password:
#
# Sets the password of a remote display session.
#
# @protocol: `vnc' to modify the VNC server password
#            `spice' to modify the Spice server password
#
# @password: the new password
#
# @connected: #optional how to handle existing clients when changing the
#                       password.  If nothing is specified, defaults to `keep'
#                       `fail' to fail the command if clients are connected
#                       `disconnect' to disconnect existing clients
#                       `keep' to maintain existing clients
#
# Returns: Nothing on success
#          If Spice is not enabled, DeviceNotFound
#
# Since: 0.14.0
##
{ 'command': 'set_password',
  'data': {'protocol': 'str', 'password': 'str', '*connected': 'str'} }

##
# @expire_password:
#
# Expire the password of a remote display server.
#
# @protocol: the name of the remote display protocol `vnc' or `spice'
#
# @time: when to expire the password.
#        `now' to expire the password immediately
#        `never' to cancel password expiration
#        `+INT' where INT is the number of seconds from now (integer)
#        `INT' where INT is the absolute time in seconds
#
# Returns: Nothing on success
#          If @protocol is `spice' and Spice is not active, DeviceNotFound
#
# Since: 0.14.0
#
# Notes: Time is relative to the server and currently there is no way to
#        coordinate server time with client time.  It is not recommended to
#        use the absolute time version of the @time parameter unless you're
#        sure you are on the same machine as the QEMU instance.
##
{ 'command': 'expire_password', 'data': {'protocol': 'str', 'time': 'str'} }

##
# @eject:
#
# Ejects a device from a removable drive.
#
# @device:  The name of the device
#
# @force:   @optional If true, eject regardless of whether the drive is locked.
#           If not specified, the default value is false.
#
# Returns:  Nothing on success
#           If @device is not a valid block device, DeviceNotFound
#
# Notes:    Ejecting a device will no media results in success
#
# Since: 0.14.0
##
{ 'command': 'eject', 'data': {'device': 'str', '*force': 'bool'} }

##
# @change-vnc-password:
#
# Change the VNC server password.
#
# @target:  the new password to use with VNC authentication
#
# Since: 1.1
#
# Notes:  An empty password in this command will set the password to the empty
#         string.  Existing clients are unaffected by executing this command.
##
{ 'command': 'change-vnc-password', 'data': {'password': 'str'} }

##
# @change:
#
# This command is multiple commands multiplexed together.
#
# @device: This is normally the name of a block device but it may also be 'vnc'.
#          when it's 'vnc', then sub command depends on @target
#
# @target: If @device is a block device, then this is the new filename.
#          If @device is 'vnc', then if the value 'password' selects the vnc
#          change password command.   Otherwise, this specifies a new server URI
#          address to listen to for VNC connections.
#
# @arg:    If @device is a block device, then this is an optional format to open
#          the device with.
#          If @device is 'vnc' and @target is 'password', this is the new VNC
#          password to set.  If this argument is an empty string, then no future
#          logins will be allowed.
#
# Returns: Nothing on success.
#          If @device is not a valid block device, DeviceNotFound
#          If the new block device is encrypted, DeviceEncrypted.  Note that
#          if this error is returned, the device has been opened successfully
#          and an additional call to @block_passwd is required to set the
#          device's password.  The behavior of reads and writes to the block
#          device between when these calls are executed is undefined.
#
# Notes:  It is strongly recommended that this interface is not used especially
#         for changing block devices.
#
# Since: 0.14.0
##
{ 'command': 'change',
  'data': {'device': 'str', 'target': 'str', '*arg': 'str'} }

##
# @block_set_io_throttle:
#
# Change I/O throttle limits for a block drive.
#
# @device: The name of the device
#
# @bps: total throughput limit in bytes per second
#
# @bps_rd: read throughput limit in bytes per second
#
# @bps_wr: write throughput limit in bytes per second
#
# @iops: total I/O operations per second
#
# @ops_rd: read I/O operations per second
#
# @iops_wr: write I/O operations per second
#
# @bps_max: #optional total max in bytes (Since 1.7)
#
# @bps_rd_max: #optional read max in bytes (Since 1.7)
#
# @bps_wr_max: #optional write max in bytes (Since 1.7)
#
# @iops_max: #optional total I/O operations max (Since 1.7)
#
# @iops_rd_max: #optional read I/O operations max (Since 1.7)
#
# @iops_wr_max: #optional write I/O operations max (Since 1.7)
#
# @iops_size: #optional an I/O size in bytes (Since 1.7)
#
# Returns: Nothing on success
#          If @device is not a valid block device, DeviceNotFound
#
# Since: 1.1
##
{ 'command': 'block_set_io_throttle',
  'data': { 'device': 'str', 'bps': 'int', 'bps_rd': 'int', 'bps_wr': 'int',
            'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int',
            '*bps_max': 'int', '*bps_rd_max': 'int',
            '*bps_wr_max': 'int', '*iops_max': 'int',
            '*iops_rd_max': 'int', '*iops_wr_max': 'int',
            '*iops_size': 'int' } }

##
# @block-stream:
#
# Copy data from a backing file into a block device.
#
# The block streaming operation is performed in the background until the entire
# backing file has been copied.  This command returns immediately once streaming
# has started.  The status of ongoing block streaming operations can be checked
# with query-block-jobs.  The operation can be stopped before it has completed
# using the block-job-cancel command.
#
# If a base file is specified then sectors are not copied from that base file and
# its backing chain.  When streaming completes the image file will have the base
# file as its backing file.  This can be used to stream a subset of the backing
# file chain instead of flattening the entire image.
#
# On successful completion the image file is updated to drop the backing file
# and the BLOCK_JOB_COMPLETED event is emitted.
#
# @device: the device name
#
# @base:   #optional the common backing file name
#
# @speed:  #optional the maximum speed, in bytes per second
#
# @on-error: #optional the action to take on an error (default report).
#            'stop' and 'enospc' can only be used if the block device
#            supports io-status (see BlockInfo).  Since 1.3.
#
# Returns: Nothing on success
#          If @device does not exist, DeviceNotFound
#
# Since: 1.1
##
{ 'command': 'block-stream',
  'data': { 'device': 'str', '*base': 'str', '*speed': 'int',
            '*on-error': 'BlockdevOnError' } }

##
# @block-job-set-speed:
#
# Set maximum speed for a background block operation.
#
# This command can only be issued when there is an active block job.
#
# Throttling can be disabled by setting the speed to 0.
#
# @device: the device name
#
# @speed:  the maximum speed, in bytes per second, or 0 for unlimited.
#          Defaults to 0.
#
# Returns: Nothing on success
#          If no background operation is active on this device, DeviceNotActive
#
# Since: 1.1
##
{ 'command': 'block-job-set-speed',
  'data': { 'device': 'str', 'speed': 'int' } }

##
# @block-job-cancel:
#
# Stop an active background block operation.
#
# This command returns immediately after marking the active background block
# operation for cancellation.  It is an error to call this command if no
# operation is in progress.
#
# The operation will cancel as soon as possible and then emit the
# BLOCK_JOB_CANCELLED event.  Before that happens the job is still visible when
# enumerated using query-block-jobs.
#
# For streaming, the image file retains its backing file unless the streaming
# operation happens to complete just as it is being cancelled.  A new streaming
# operation can be started at a later time to finish copying all data from the
# backing file.
#
# @device: the device name
#
# @force: #optional whether to allow cancellation of a paused job (default
#         false).  Since 1.3.
#
# Returns: Nothing on success
#          If no background operation is active on this device, DeviceNotActive
#
# Since: 1.1
##
{ 'command': 'block-job-cancel', 'data': { 'device': 'str', '*force': 'bool' } }

##
# @block-job-pause:
#
# Pause an active background block operation.
#
# This command returns immediately after marking the active background block
# operation for pausing.  It is an error to call this command if no
# operation is in progress.  Pausing an already paused job has no cumulative
# effect; a single block-job-resume command will resume the job.
#
# The operation will pause as soon as possible.  No event is emitted when
# the operation is actually paused.  Cancelling a paused job automatically
# resumes it.
#
# @device: the device name
#
# Returns: Nothing on success
#          If no background operation is active on this device, DeviceNotActive
#
# Since: 1.3
##
{ 'command': 'block-job-pause', 'data': { 'device': 'str' } }

##
# @block-job-resume:
#
# Resume an active background block operation.
#
# This command returns immediately after resuming a paused background block
# operation.  It is an error to call this command if no operation is in
# progress.  Resuming an already running job is not an error.
#
# This command also clears the error status of the job.
#
# @device: the device name
#
# Returns: Nothing on success
#          If no background operation is active on this device, DeviceNotActive
#
# Since: 1.3
##
{ 'command': 'block-job-resume', 'data': { 'device': 'str' } }

##
# @block-job-complete:
#
# Manually trigger completion of an active background block operation.  This
# is supported for drive mirroring, where it also switches the device to
# write to the target path only.  The ability to complete is signaled with
# a BLOCK_JOB_READY event.
#
# This command completes an active background block operation synchronously.
# The ordering of this command's return with the BLOCK_JOB_COMPLETED event
# is not defined.  Note that if an I/O error occurs during the processing of
# this command: 1) the command itself will fail; 2) the error will be processed
# according to the rerror/werror arguments that were specified when starting
# the operation.
#
# A cancelled or paused job cannot be completed.
#
# @device: the device name
#
# Returns: Nothing on success
#          If no background operation is active on this device, DeviceNotActive
#
# Since: 1.3
##
{ 'command': 'block-job-complete', 'data': { 'device': 'str' } }

##
# @ObjectTypeInfo:
#
# This structure describes a search result from @qom-list-types
#
# @name: the type name found in the search
#
# Since: 1.1
#
# Notes: This command is experimental and may change syntax in future releases.
##
{ 'type': 'ObjectTypeInfo',
  'data': { 'name': 'str' } }

##
# @qom-list-types:
#
# This command will return a list of types given search parameters
#
# @implements: if specified, only return types that implement this type name
#
# @abstract: if true, include abstract types in the results
#
# Returns: a list of @ObjectTypeInfo or an empty list if no results are found
#
# Since: 1.1
##
{ 'command': 'qom-list-types',
  'data': { '*implements': 'str', '*abstract': 'bool' },
  'returns': [ 'ObjectTypeInfo' ] }

##
# @DevicePropertyInfo:
#
# Information about device properties.
#
# @name: the name of the property
# @type: the typename of the property
#
# Since: 1.2
##
{ 'type': 'DevicePropertyInfo',
  'data': { 'name': 'str', 'type': 'str' } }

##
# @device-list-properties:
#
# List properties associated with a device.
#
# @typename: the type name of a device
#
# Returns: a list of DevicePropertyInfo describing a devices properties
#
# Since: 1.2
##
{ 'command': 'device-list-properties',
  'data': { 'typename': 'str'},
  'returns': [ 'DevicePropertyInfo' ] }

##
# @migrate
#
# Migrates the current running guest to another Virtual Machine.
#
# @uri: the Uniform Resource Identifier of the destination VM
#
# @blk: #optional do block migration (full disk copy)
#
# @inc: #optional incremental disk copy migration
#
# @detach: this argument exists only for compatibility reasons and
#          is ignored by QEMU
#
# Returns: nothing on success
#
# Since: 0.14.0
##
{ 'command': 'migrate',
  'data': {'uri': 'str', '*blk': 'bool', '*inc': 'bool', '*detach': 'bool' } }

# @xen-save-devices-state:
#
# Save the state of all devices to file. The RAM and the block devices
# of the VM are not saved by this command.
#
# @filename: the file to save the state of the devices to as binary
# data. See xen-save-devices-state.txt for a description of the binary
# format.
#
# Returns: Nothing on success
#
# Since: 1.1
##
{ 'command': 'xen-save-devices-state', 'data': {'filename': 'str'} }

##
# @xen-set-global-dirty-log
#
# Enable or disable the global dirty log mode.
#
# @enable: true to enable, false to disable.
#
# Returns: nothing
#
# Since: 1.3
##
{ 'command': 'xen-set-global-dirty-log', 'data': { 'enable': 'bool' } }

##
# @device_del:
#
# Remove a device from a guest
#
# @id: the name of the device
#
# Returns: Nothing on success
#          If @id is not a valid device, DeviceNotFound
#
# Notes: When this command completes, the device may not be removed from the
#        guest.  Hot removal is an operation that requires guest cooperation.
#        This command merely requests that the guest begin the hot removal
#        process.  Completion of the device removal process is signaled with a
#        DEVICE_DELETED event. Guest reset will automatically complete removal
#        for all devices.
#
# Since: 0.14.0
##
{ 'command': 'device_del', 'data': {'id': 'str'} }

##
# @dump-guest-memory
#
# Dump guest's memory to vmcore. It is a synchronous operation that can take
# very long depending on the amount of guest memory. This command is only
# supported on i386 and x86_64.
#
# @paging: if true, do paging to get guest's memory mapping. This allows
#          using gdb to process the core file.
#
#          IMPORTANT: this option can make QEMU allocate several gigabytes
#                     of RAM. This can happen for a large guest, or a
#                     malicious guest pretending to be large.
#
#          Also, paging=true has the following limitations:
#
#             1. The guest may be in a catastrophic state or can have corrupted
#                memory, which cannot be trusted
#             2. The guest can be in real-mode even if paging is enabled. For
#                example, the guest uses ACPI to sleep, and ACPI sleep state
#                goes in real-mode
#
# @protocol: the filename or file descriptor of the vmcore. The supported
#            protocols are:
#
#            1. file: the protocol starts with "file:", and the following
#               string is the file's path.
#            2. fd: the protocol starts with "fd:", and the following string
#               is the fd's name.
#
# @begin: #optional if specified, the starting physical address.
#
# @length: #optional if specified, the memory size, in bytes. If you don't
#          want to dump all guest's memory, please specify the start @begin
#          and @length
#
# Returns: nothing on success
#
# Since: 1.2
##
{ 'command': 'dump-guest-memory',
  'data': { 'paging': 'bool', 'protocol': 'str', '*begin': 'int',
            '*length': 'int' } }

##
# @netdev_add:
#
# Add a network backend.
#
# @type: the type of network backend.  Current valid values are 'user', 'tap',
#        'vde', 'socket', 'dump' and 'bridge'
#
# @id: the name of the new network backend
#
# @props: #optional a list of properties to be passed to the backend in
#         the format 'name=value', like 'ifname=tap0,script=no'
#
# Notes: The semantics of @props is not well defined.  Future commands will be
#        introduced that provide stronger typing for backend creation.
#
# Since: 0.14.0
#
# Returns: Nothing on success
#          If @type is not a valid network backend, DeviceNotFound
##
{ 'command': 'netdev_add',
  'data': {'type': 'str', 'id': 'str', '*props': '**'},
  'gen': 'no' }

##
# @netdev_del:
#
# Remove a network backend.
#
# @id: the name of the network backend to remove
#
# Returns: Nothing on success
#          If @id is not a valid network backend, DeviceNotFound
#
# Since: 0.14.0
##
{ 'command': 'netdev_del', 'data': {'id': 'str'} }

##
# @object-del:
#
# Remove a QOM object.
#
# @id: the name of the QOM object to remove
#
# Returns: Nothing on success
#          Error if @id is not a valid id for a QOM object
#
# Since: 2.0
##
{ 'command': 'object-del', 'data': {'id': 'str'} }

##
# @NetdevNoneOptions
#
# Use it alone to have zero network devices.
#
# Since 1.2
##
{ 'type': 'NetdevNoneOptions',
  'data': { } }

##
# @NetLegacyNicOptions
#
# Create a new Network Interface Card.
#
# @netdev: #optional id of -netdev to connect to
#
# @macaddr: #optional MAC address
#
# @model: #optional device model (e1000, rtl8139, virtio etc.)
#
# @addr: #optional PCI device address
#
# @vectors: #optional number of MSI-x vectors, 0 to disable MSI-X
#
# Since 1.2
##
{ 'type': 'NetLegacyNicOptions',
  'data': {
    '*netdev':  'str',
    '*macaddr': 'str',
    '*model':   'str',
    '*addr':    'str',
    '*vectors': 'uint32' } }

##
# @String
#
# A fat type wrapping 'str', to be embedded in lists.
#
# Since 1.2
##
{ 'type': 'String',
  'data': {
    'str': 'str' } }

##
# @NetdevUserOptions
#
# Use the user mode network stack which requires no administrator privilege to
# run.
#
# @hostname: #optional client hostname reported by the builtin DHCP server
#
# @restrict: #optional isolate the guest from the host
#
# @ip: #optional legacy parameter, use net= instead
#
# @net: #optional IP address and optional netmask
#
# @host: #optional guest-visible address of the host
#
# @tftp: #optional root directory of the built-in TFTP server
#
# @bootfile: #optional BOOTP filename, for use with tftp=
#
# @dhcpstart: #optional the first of the 16 IPs the built-in DHCP server can
#             assign
#
# @dns: #optional guest-visible address of the virtual nameserver
#
# @dnssearch: #optional list of DNS suffixes to search, passed as DHCP option
#             to the guest
#
# @smb: #optional root directory of the built-in SMB server
#
# @smbserver: #optional IP address of the built-in SMB server
#
# @hostfwd: #optional redirect incoming TCP or UDP host connections to guest
#           endpoints
#
# @guestfwd: #optional forward guest TCP connections
#
# Since 1.2
##
{ 'type': 'NetdevUserOptions',
  'data': {
    '*hostname':  'str',
    '*restrict':  'bool',
    '*ip':        'str',
    '*net':       'str',
    '*host':      'str',
    '*tftp':      'str',
    '*bootfile':  'str',
    '*dhcpstart': 'str',
    '*dns':       'str',
    '*dnssearch': ['String'],
    '*smb':       'str',
    '*smbserver': 'str',
    '*hostfwd':   ['String'],
    '*guestfwd':  ['String'] } }

##
# @NetdevTapOptions
#
# Connect the host TAP network interface name to the VLAN.
#
# @ifname: #optional interface name
#
# @fd: #optional file descriptor of an already opened tap
#
# @fds: #optional multiple file descriptors of already opened multiqueue capable
# tap
#
# @script: #optional script to initialize the interface
#
# @downscript: #optional script to shut down the interface
#
# @helper: #optional command to execute to configure bridge
#
# @sndbuf: #optional send buffer limit. Understands [TGMKkb] suffixes.
#
# @vnet_hdr: #optional enable the IFF_VNET_HDR flag on the tap interface
#
# @vhost: #optional enable vhost-net network accelerator
#
# @vhostfd: #optional file descriptor of an already opened vhost net device
#
# @vhostfds: #optional file descriptors of multiple already opened vhost net
# devices
#
# @vhostforce: #optional vhost on for non-MSIX virtio guests
#
# @queues: #optional number of queues to be created for multiqueue capable tap
#
# Since 1.2
##
{ 'type': 'NetdevTapOptions',
  'data': {
    '*ifname':     'str',
    '*fd':         'str',
    '*fds':        'str',
    '*script':     'str',
    '*downscript': 'str',
    '*helper':     'str',
    '*sndbuf':     'size',
    '*vnet_hdr':   'bool',
    '*vhost':      'bool',
    '*vhostfd':    'str',
    '*vhostfds':   'str',
    '*vhostforce': 'bool',
    '*queues':     'uint32'} }

##
# @NetdevSocketOptions
#
# Connect the VLAN to a remote VLAN in another QEMU virtual machine using a TCP
# socket connection.
#
# @fd: #optional file descriptor of an already opened socket
#
# @listen: #optional port number, and optional hostname, to listen on
#
# @connect: #optional port number, and optional hostname, to connect to
#
# @mcast: #optional UDP multicast address and port number
#
# @localaddr: #optional source address and port for multicast and udp packets
#
# @udp: #optional UDP unicast address and port number
#
# Since 1.2
##
{ 'type': 'NetdevSocketOptions',
  'data': {
    '*fd':        'str',
    '*listen':    'str',
    '*connect':   'str',
    '*mcast':     'str',
    '*localaddr': 'str',
    '*udp':       'str' } }

##
# @NetdevVdeOptions
#
# Connect the VLAN to a vde switch running on the host.
#
# @sock: #optional socket path
#
# @port: #optional port number
#
# @group: #optional group owner of socket
#
# @mode: #optional permissions for socket
#
# Since 1.2
##
{ 'type': 'NetdevVdeOptions',
  'data': {
    '*sock':  'str',
    '*port':  'uint16',
    '*group': 'str',
    '*mode':  'uint16' } }

##
# @NetdevDumpOptions
#
# Dump VLAN network traffic to a file.
#
# @len: #optional per-packet size limit (64k default). Understands [TGMKkb]
# suffixes.
#
# @file: #optional dump file path (default is qemu-vlan0.pcap)
#
# Since 1.2
##
{ 'type': 'NetdevDumpOptions',
  'data': {
    '*len':  'size',
    '*file': 'str' } }

##
# @NetdevBridgeOptions
#
# Connect a host TAP network interface to a host bridge device.
#
# @br: #optional bridge name
#
# @helper: #optional command to execute to configure bridge
#
# Since 1.2
##
{ 'type': 'NetdevBridgeOptions',
  'data': {
    '*br':     'str',
    '*helper': 'str' } }

##
# @NetdevHubPortOptions
#
# Connect two or more net clients through a software hub.
#
# @hubid: hub identifier number
#
# Since 1.2
##
{ 'type': 'NetdevHubPortOptions',
  'data': {
    'hubid':     'int32' } }

##
# @NetdevNetmapOptions
#
# Connect a client to a netmap-enabled NIC or to a VALE switch port
#
# @ifname: Either the name of an existing network interface supported by
#          netmap, or the name of a VALE port (created on the fly).
#          A VALE port name is in the form 'valeXXX:YYY', where XXX and
#          YYY are non-negative integers. XXX identifies a switch and
#          YYY identifies a port of the switch. VALE ports having the
#          same XXX are therefore connected to the same switch.
#
# @devname: #optional path of the netmap device (default: '/dev/netmap').
#
# Since 1.8
##
{ 'type': 'NetdevNetmapOptions',
  'data': {
    'ifname':     'str',
    '*devname':    'str' } }

##
# @NetClientOptions
#
# A discriminated record of network device traits.
#
# Since 1.2
##
{ 'union': 'NetClientOptions',
  'data': {
    'none':     'NetdevNoneOptions',
    'nic':      'NetLegacyNicOptions',
    'user':     'NetdevUserOptions',
    'tap':      'NetdevTapOptions',
    'socket':   'NetdevSocketOptions',
    'vde':      'NetdevVdeOptions',
    'dump':     'NetdevDumpOptions',
    'bridge':   'NetdevBridgeOptions',
    'hubport':  'NetdevHubPortOptions',
    'netmap':   'NetdevNetmapOptions' } }

##
# @NetLegacy
#
# Captures the configuration of a network device; legacy.
#
# @vlan: #optional vlan number
#
# @id: #optional identifier for monitor commands
#
# @name: #optional identifier for monitor commands, ignored if @id is present
#
# @opts: device type specific properties (legacy)
#
# Since 1.2
##
{ 'type': 'NetLegacy',
  'data': {
    '*vlan': 'int32',
    '*id':   'str',
    '*name': 'str',
    'opts':  'NetClientOptions' } }

##
# @Netdev
#
# Captures the configuration of a network device.
#
# @id: identifier for monitor commands.
#
# @opts: device type specific properties
#
# Since 1.2
##
{ 'type': 'Netdev',
  'data': {
    'id':   'str',
    'opts': 'NetClientOptions' } }

##
# @InetSocketAddress
#
# Captures a socket address or address range in the Internet namespace.
#
# @host: host part of the address
#
# @port: port part of the address, or lowest port if @to is present
#
# @to: highest port to try
#
# @ipv4: whether to accept IPv4 addresses, default try both IPv4 and IPv6
#        #optional
#
# @ipv6: whether to accept IPv6 addresses, default try both IPv4 and IPv6
#        #optional
#
# Since 1.3
##
{ 'type': 'InetSocketAddress',
  'data': {
    'host': 'str',
    'port': 'str',
    '*to': 'uint16',
    '*ipv4': 'bool',
    '*ipv6': 'bool' } }

##
# @UnixSocketAddress
#
# Captures a socket address in the local ("Unix socket") namespace.
#
# @path: filesystem path to use
#
# Since 1.3
##
{ 'type': 'UnixSocketAddress',
  'data': {
    'path': 'str' } }

##
# @SocketAddress
#
# Captures the address of a socket, which could also be a named file descriptor
#
# Since 1.3
##
{ 'union': 'SocketAddress',
  'data': {
    'inet': 'InetSocketAddress',
    'unix': 'UnixSocketAddress',
    'fd': 'String' } }

##
# @getfd:
#
# Receive a file descriptor via SCM rights and assign it a name
#
# @fdname: file descriptor name
#
# Returns: Nothing on success
#
# Since: 0.14.0
#
# Notes: If @fdname already exists, the file descriptor assigned to
#        it will be closed and replaced by the received file
#        descriptor.
#        The 'closefd' command can be used to explicitly close the
#        file descriptor when it is no longer needed.
##
{ 'command': 'getfd', 'data': {'fdname': 'str'} }

##
# @closefd:
#
# Close a file descriptor previously passed via SCM rights
#
# @fdname: file descriptor name
#
# Returns: Nothing on success
#
# Since: 0.14.0
##
{ 'command': 'closefd', 'data': {'fdname': 'str'} }

##
# @MachineInfo:
#
# Information describing a machine.
#
# @name: the name of the machine
#
# @alias: #optional an alias for the machine name
#
# @default: #optional whether the machine is default
#
# @cpu-max: maximum number of CPUs supported by the machine type
#           (since 1.5.0)
#
# Since: 1.2.0
##
{ 'type': 'MachineInfo',
  'data': { 'name': 'str', '*alias': 'str',
            '*is-default': 'bool', 'cpu-max': 'int' } }

##
# @query-machines:
#
# Return a list of supported machines
#
# Returns: a list of MachineInfo
#
# Since: 1.2.0
##
{ 'command': 'query-machines', 'returns': ['MachineInfo'] }

##
# @CpuDefinitionInfo:
#
# Virtual CPU definition.
#
# @name: the name of the CPU definition
#
# Since: 1.2.0
##
{ 'type': 'CpuDefinitionInfo',
  'data': { 'name': 'str' } }

##
# @query-cpu-definitions:
#
# Return a list of supported virtual CPU definitions
#
# Returns: a list of CpuDefInfo
#
# Since: 1.2.0
##
{ 'command': 'query-cpu-definitions', 'returns': ['CpuDefinitionInfo'] }

# @AddfdInfo:
#
# Information about a file descriptor that was added to an fd set.
#
# @fdset-id: The ID of the fd set that @fd was added to.
#
# @fd: The file descriptor that was received via SCM rights and
#      added to the fd set.
#
# Since: 1.2.0
##
{ 'type': 'AddfdInfo', 'data': {'fdset-id': 'int', 'fd': 'int'} }

##
# @add-fd:
#
# Add a file descriptor, that was passed via SCM rights, to an fd set.
#
# @fdset-id: #optional The ID of the fd set to add the file descriptor to.
#
# @opaque: #optional A free-form string that can be used to describe the fd.
#
# Returns: @AddfdInfo on success
#          If file descriptor was not received, FdNotSupplied
#          If @fdset-id is a negative value, InvalidParameterValue
#
# Notes: The list of fd sets is shared by all monitor connections.
#
#        If @fdset-id is not specified, a new fd set will be created.
#
# Since: 1.2.0
##
{ 'command': 'add-fd', 'data': {'*fdset-id': 'int', '*opaque': 'str'},
  'returns': 'AddfdInfo' }

##
# @remove-fd:
#
# Remove a file descriptor from an fd set.
#
# @fdset-id: The ID of the fd set that the file descriptor belongs to.
#
# @fd: #optional The file descriptor that is to be removed.
#
# Returns: Nothing on success
#          If @fdset-id or @fd is not found, FdNotFound
#
# Since: 1.2.0
#
# Notes: The list of fd sets is shared by all monitor connections.
#
#        If @fd is not specified, all file descriptors in @fdset-id
#        will be removed.
##
{ 'command': 'remove-fd', 'data': {'fdset-id': 'int', '*fd': 'int'} }

##
# @FdsetFdInfo:
#
# Information about a file descriptor that belongs to an fd set.
#
# @fd: The file descriptor value.
#
# @opaque: #optional A free-form string that can be used to describe the fd.
#
# Since: 1.2.0
##
{ 'type': 'FdsetFdInfo',
  'data': {'fd': 'int', '*opaque': 'str'} }

##
# @FdsetInfo:
#
# Information about an fd set.
#
# @fdset-id: The ID of the fd set.
#
# @fds: A list of file descriptors that belong to this fd set.
#
# Since: 1.2.0
##
{ 'type': 'FdsetInfo',
  'data': {'fdset-id': 'int', 'fds': ['FdsetFdInfo']} }

##
# @query-fdsets:
#
# Return information describing all fd sets.
#
# Returns: A list of @FdsetInfo
#
# Since: 1.2.0
#
# Note: The list of fd sets is shared by all monitor connections.
#
##
{ 'command': 'query-fdsets', 'returns': ['FdsetInfo'] }

##
# @TargetInfo:
#
# Information describing the QEMU target.
#
# @arch: the target architecture (eg "x86_64", "i386", etc)
#
# Since: 1.2.0
##
{ 'type': 'TargetInfo',
  'data': { 'arch': 'str' } }

##
# @query-target:
#
# Return information about the target for this QEMU
#
# Returns: TargetInfo
#
# Since: 1.2.0
##
{ 'command': 'query-target', 'returns': 'TargetInfo' }

##
# @QKeyCode:
#
# An enumeration of key name.
#
# This is used by the send-key command.
#
# Since: 1.3.0
##
{ 'enum': 'QKeyCode',
  'data': [ 'shift', 'shift_r', 'alt', 'alt_r', 'altgr', 'altgr_r', 'ctrl',
            'ctrl_r', 'menu', 'esc', '1', '2', '3', '4', '5', '6', '7', '8',
            '9', '0', 'minus', 'equal', 'backspace', 'tab', 'q', 'w', 'e',
            'r', 't', 'y', 'u', 'i', 'o', 'p', 'bracket_left', 'bracket_right',
            'ret', 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'semicolon',
            'apostrophe', 'grave_accent', 'backslash', 'z', 'x', 'c', 'v', 'b',
            'n', 'm', 'comma', 'dot', 'slash', 'asterisk', 'spc', 'caps_lock',
            'f1', 'f2', 'f3', 'f4', 'f5', 'f6', 'f7', 'f8', 'f9', 'f10',
            'num_lock', 'scroll_lock', 'kp_divide', 'kp_multiply',
            'kp_subtract', 'kp_add', 'kp_enter', 'kp_decimal', 'sysrq', 'kp_0',
            'kp_1', 'kp_2', 'kp_3', 'kp_4', 'kp_5', 'kp_6', 'kp_7', 'kp_8',
            'kp_9', 'less', 'f11', 'f12', 'print', 'home', 'pgup', 'pgdn', 'end',
            'left', 'up', 'down', 'right', 'insert', 'delete', 'stop', 'again',
            'props', 'undo', 'front', 'copy', 'open', 'paste', 'find', 'cut',
             'lf', 'help', 'meta_l', 'meta_r', 'compose' ] }

##
# @KeyValue
#
# Represents a keyboard key.
#
# Since: 1.3.0
##
{ 'union': 'KeyValue',
  'data': {
    'number': 'int',
    'qcode': 'QKeyCode' } }

##
# @send-key:
#
# Send keys to guest.
#
# @keys: An array of @KeyValue elements. All @KeyValues in this array are
#        simultaneously sent to the guest. A @KeyValue.number value is sent
#        directly to the guest, while @KeyValue.qcode must be a valid
#        @QKeyCode value
#
# @hold-time: #optional time to delay key up events, milliseconds. Defaults
#             to 100
#
# Returns: Nothing on success
#          If key is unknown or redundant, InvalidParameter
#
# Since: 1.3.0
#
##
{ 'command': 'send-key',
  'data': { 'keys': ['KeyValue'], '*hold-time': 'int' } }

##
# @screendump:
#
# Write a PPM of the VGA screen to a file.
#
# @filename: the path of a new PPM file to store the image
#
# Returns: Nothing on success
#
# Since: 0.14.0
##
{ 'command': 'screendump', 'data': {'filename': 'str'} }

##
# @nbd-server-start:
#
# Start an NBD server listening on the given host and port.  Block
# devices can then be exported using @nbd-server-add.  The NBD
# server will present them as named exports; for example, another
# QEMU instance could refer to them as "nbd:HOST:PORT:exportname=NAME".
#
# @addr: Address on which to listen.
#
# Returns: error if the server is already running.
#
# Since: 1.3.0
##
{ 'command': 'nbd-server-start',
  'data': { 'addr': 'SocketAddress' } }

##
# @nbd-server-add:
#
# Export a device to QEMU's embedded NBD server.
#
# @device: Block device to be exported
#
# @writable: Whether clients should be able to write to the device via the
#     NBD connection (default false). #optional
#
# Returns: error if the device is already marked for export.
#
# Since: 1.3.0
##
{ 'command': 'nbd-server-add', 'data': {'device': 'str', '*writable': 'bool'} }

##
# @nbd-server-stop:
#
# Stop QEMU's embedded NBD server, and unregister all devices previously
# added via @nbd-server-add.
#
# Since: 1.3.0
##
{ 'command': 'nbd-server-stop' }

##
# @ChardevFile:
#
# Configuration info for file chardevs.
#
# @in:  #optional The name of the input file
# @out: The name of the output file
#
# Since: 1.4
##
{ 'type': 'ChardevFile', 'data': { '*in' : 'str',
                                   'out' : 'str' } }

##
# @ChardevHostdev:
#
# Configuration info for device and pipe chardevs.
#
# @device: The name of the special file for the device,
#          i.e. /dev/ttyS0 on Unix or COM1: on Windows
# @type: What kind of device this is.
#
# Since: 1.4
##
{ 'type': 'ChardevHostdev', 'data': { 'device' : 'str' } }

##
# @ChardevSocket:
#
# Configuration info for (stream) socket chardevs.
#
# @addr: socket address to listen on (server=true)
#        or connect to (server=false)
# @server: #optional create server socket (default: true)
# @wait: #optional wait for incoming connection on server
#        sockets (default: false).
# @nodelay: #optional set TCP_NODELAY socket option (default: false)
# @telnet: #optional enable telnet protocol on server
#          sockets (default: false)
#
# Since: 1.4
##
{ 'type': 'ChardevSocket', 'data': { 'addr'     : 'SocketAddress',
                                     '*server'  : 'bool',
                                     '*wait'    : 'bool',
                                     '*nodelay' : 'bool',
                                     '*telnet'  : 'bool' } }

##
# @ChardevUdp:
#
# Configuration info for datagram socket chardevs.
#
# @remote: remote address
# @local: #optional local address
#
# Since: 1.5
##
{ 'type': 'ChardevUdp', 'data': { 'remote' : 'SocketAddress',
                                  '*local' : 'SocketAddress' } }

##
# @ChardevMux:
#
# Configuration info for mux chardevs.
#
# @chardev: name of the base chardev.
#
# Since: 1.5
##
{ 'type': 'ChardevMux', 'data': { 'chardev' : 'str' } }

##
# @ChardevStdio:
#
# Configuration info for stdio chardevs.
#
# @signal: #optional Allow signals (such as SIGINT triggered by ^C)
#          be delivered to qemu.  Default: true in -nographic mode,
#          false otherwise.
#
# Since: 1.5
##
{ 'type': 'ChardevStdio', 'data': { '*signal' : 'bool' } }

##
# @ChardevSpiceChannel:
#
# Configuration info for spice vm channel chardevs.
#
# @type: kind of channel (for example vdagent).
#
# Since: 1.5
##
{ 'type': 'ChardevSpiceChannel', 'data': { 'type'  : 'str' } }

##
# @ChardevSpicePort:
#
# Configuration info for spice port chardevs.
#
# @fqdn: name of the channel (see docs/spice-port-fqdn.txt)
#
# Since: 1.5
##
{ 'type': 'ChardevSpicePort', 'data': { 'fqdn'  : 'str' } }

##
# @ChardevVC:
#
# Configuration info for virtual console chardevs.
#
# @width:  console width,  in pixels
# @height: console height, in pixels
# @cols:   console width,  in chars
# @rows:   console height, in chars
#
# Since: 1.5
##
{ 'type': 'ChardevVC', 'data': { '*width'  : 'int',
                                 '*height' : 'int',
                                 '*cols'   : 'int',
                                 '*rows'   : 'int' } }

##
# @ChardevRingbuf:
#
# Configuration info for ring buffer chardevs.
#
# @size: #optional ring buffer size, must be power of two, default is 65536
#
# Since: 1.5
##
{ 'type': 'ChardevRingbuf', 'data': { '*size'  : 'int' } }

##
# @ChardevBackend:
#
# Configuration info for the new chardev backend.
#
# Since: 1.4
##
{ 'type': 'ChardevDummy', 'data': { } }

{ 'union': 'ChardevBackend', 'data': { 'file'   : 'ChardevFile',
                                       'serial' : 'ChardevHostdev',
                                       'parallel': 'ChardevHostdev',
                                       'pipe'   : 'ChardevHostdev',
                                       'socket' : 'ChardevSocket',
                                       'udp'    : 'ChardevUdp',
                                       'pty'    : 'ChardevDummy',
                                       'null'   : 'ChardevDummy',
                                       'mux'    : 'ChardevMux',
                                       'msmouse': 'ChardevDummy',
                                       'braille': 'ChardevDummy',
                                       'stdio'  : 'ChardevStdio',
                                       'console': 'ChardevDummy',
                                       'spicevmc' : 'ChardevSpiceChannel',
                                       'spiceport' : 'ChardevSpicePort',
                                       'vc'     : 'ChardevVC',
                                       'ringbuf': 'ChardevRingbuf',
                                       # next one is just for compatibility
                                       'memory' : 'ChardevRingbuf' } }

##
# @ChardevReturn:
#
# Return info about the chardev backend just created.
#
# @pty: #optional name of the slave pseudoterminal device, present if
#       and only if a chardev of type 'pty' was created
#
# Since: 1.4
##
{ 'type' : 'ChardevReturn', 'data': { '*pty' : 'str' } }

##
# @chardev-add:
#
# Add a character device backend
#
# @id: the chardev's ID, must be unique
# @backend: backend type and parameters
#
# Returns: ChardevReturn.
#
# Since: 1.4
##
{ 'command': 'chardev-add', 'data': {'id'      : 'str',
                                     'backend' : 'ChardevBackend' },
  'returns': 'ChardevReturn' }

##
# @chardev-remove:
#
# Remove a character device backend
#
# @id: the chardev's ID, must exist and not be in use
#
# Returns: Nothing on success
#
# Since: 1.4
##
{ 'command': 'chardev-remove', 'data': {'id': 'str'} }

##
# @TpmModel:
#
# An enumeration of TPM models
#
# @tpm-tis: TPM TIS model
#
# Since: 1.5
##
{ 'enum': 'TpmModel', 'data': [ 'tpm-tis' ] }

##
# @query-tpm-models:
#
# Return a list of supported TPM models
#
# Returns: a list of TpmModel
#
# Since: 1.5
##
{ 'command': 'query-tpm-models', 'returns': ['TpmModel'] }

##
# @TpmType:
#
# An enumeration of TPM types
#
# @passthrough: TPM passthrough type
#
# Since: 1.5
##
{ 'enum': 'TpmType', 'data': [ 'passthrough' ] }

##
# @query-tpm-types:
#
# Return a list of supported TPM types
#
# Returns: a list of TpmType
#
# Since: 1.5
##
{ 'command': 'query-tpm-types', 'returns': ['TpmType'] }

##
# @TPMPassthroughOptions:
#
# Information about the TPM passthrough type
#
# @path: #optional string describing the path used for accessing the TPM device
#
# @cancel-path: #optional string showing the TPM's sysfs cancel file
#               for cancellation of TPM commands while they are executing
#
# Since: 1.5
##
{ 'type': 'TPMPassthroughOptions', 'data': { '*path' : 'str',
                                             '*cancel-path' : 'str'} }

##
# @TpmTypeOptions:
#
# A union referencing different TPM backend types' configuration options
#
# @passthrough: The configuration options for the TPM passthrough type
#
# Since: 1.5
##
{ 'union': 'TpmTypeOptions',
   'data': { 'passthrough' : 'TPMPassthroughOptions' } }

##
# @TpmInfo:
#
# Information about the TPM
#
# @id: The Id of the TPM
#
# @model: The TPM frontend model
#
# @options: The TPM (backend) type configuration options
#
# Since: 1.5
##
{ 'type': 'TPMInfo',
  'data': {'id': 'str',
           'model': 'TpmModel',
           'options': 'TpmTypeOptions' } }

##
# @query-tpm:
#
# Return information about the TPM device
#
# Returns: @TPMInfo on success
#
# Since: 1.5
##
{ 'command': 'query-tpm', 'returns': ['TPMInfo'] }

##
# @AcpiTableOptions
#
# Specify an ACPI table on the command line to load.
#
# At most one of @file and @data can be specified. The list of files specified
# by any one of them is loaded and concatenated in order. If both are omitted,
# @data is implied.
#
# Other fields / optargs can be used to override fields of the generic ACPI
# table header; refer to the ACPI specification 5.0, section 5.2.6 System
# Description Table Header. If a header field is not overridden, then the
# corresponding value from the concatenated blob is used (in case of @file), or
# it is filled in with a hard-coded value (in case of @data).
#
# String fields are copied into the matching ACPI member from lowest address
# upwards, and silently truncated / NUL-padded to length.
#
# @sig: #optional table signature / identifier (4 bytes)
#
# @rev: #optional table revision number (dependent on signature, 1 byte)
#
# @oem_id: #optional OEM identifier (6 bytes)
#
# @oem_table_id: #optional OEM table identifier (8 bytes)
#
# @oem_rev: #optional OEM-supplied revision number (4 bytes)
#
# @asl_compiler_id: #optional identifier of the utility that created the table
#                   (4 bytes)
#
# @asl_compiler_rev: #optional revision number of the utility that created the
#                    table (4 bytes)
#
# @file: #optional colon (:) separated list of pathnames to load and
#        concatenate as table data. The resultant binary blob is expected to
#        have an ACPI table header. At least one file is required. This field
#        excludes @data.
#
# @data: #optional colon (:) separated list of pathnames to load and
#        concatenate as table data. The resultant binary blob must not have an
#        ACPI table header. At least one file is required. This field excludes
#        @file.
#
# Since 1.5
##
{ 'type': 'AcpiTableOptions',
  'data': {
    '*sig':               'str',
    '*rev':               'uint8',
    '*oem_id':            'str',
    '*oem_table_id':      'str',
    '*oem_rev':           'uint32',
    '*asl_compiler_id':   'str',
    '*asl_compiler_rev':  'uint32',
    '*file':              'str',
    '*data':              'str' }}

##
# @CommandLineParameterType:
#
# Possible types for an option parameter.
#
# @string: accepts a character string
#
# @boolean: accepts "on" or "off"
#
# @number: accepts a number
#
# @size: accepts a number followed by an optional suffix (K)ilo,
#        (M)ega, (G)iga, (T)era
#
# Since 1.5
##
{ 'enum': 'CommandLineParameterType',
  'data': ['string', 'boolean', 'number', 'size'] }

##
# @CommandLineParameterInfo:
#
# Details about a single parameter of a command line option.
#
# @name: parameter name
#
# @type: parameter @CommandLineParameterType
#
# @help: #optional human readable text string, not suitable for parsing.
#
# Since 1.5
##
{ 'type': 'CommandLineParameterInfo',
  'data': { 'name': 'str',
            'type': 'CommandLineParameterType',
            '*help': 'str' } }

##
# @CommandLineOptionInfo:
#
# Details about a command line option, including its list of parameter details
#
# @option: option name
#
# @parameters: an array of @CommandLineParameterInfo
#
# Since 1.5
##
{ 'type': 'CommandLineOptionInfo',
  'data': { 'option': 'str', 'parameters': ['CommandLineParameterInfo'] } }

##
# @query-command-line-options:
#
# Query command line option schema.
#
# @option: #optional option name
#
# Returns: list of @CommandLineOptionInfo for all options (or for the given
#          @option).  Returns an error if the given @option doesn't exist.
#
# Since 1.5
##
{'command': 'query-command-line-options', 'data': { '*option': 'str' },
 'returns': ['CommandLineOptionInfo'] }

##
# @X86CPURegister32
#
# A X86 32-bit register
#
# Since: 1.5
##
{ 'enum': 'X86CPURegister32',
  'data': [ 'EAX', 'EBX', 'ECX', 'EDX', 'ESP', 'EBP', 'ESI', 'EDI' ] }

##
# @X86CPUFeatureWordInfo
#
# Information about a X86 CPU feature word
#
# @cpuid-input-eax: Input EAX value for CPUID instruction for that feature word
#
# @cpuid-input-ecx: #optional Input ECX value for CPUID instruction for that
#                   feature word
#
# @cpuid-register: Output register containing the feature bits
#
# @features: value of output register, containing the feature bits
#
# Since: 1.5
##
{ 'type': 'X86CPUFeatureWordInfo',
  'data': { 'cpuid-input-eax': 'int',
            '*cpuid-input-ecx': 'int',
            'cpuid-register': 'X86CPURegister32',
            'features': 'int' } }

##
# @RxState:
#
# Packets receiving state
#
# @normal: filter assigned packets according to the mac-table
#
# @none: don't receive any assigned packet
#
# @all: receive all assigned packets
#
# Since: 1.6
##
{ 'enum': 'RxState', 'data': [ 'normal', 'none', 'all' ] }

##
# @RxFilterInfo:
#
# Rx-filter information for a NIC.
#
# @name: net client name
#
# @promiscuous: whether promiscuous mode is enabled
#
# @multicast: multicast receive state
#
# @unicast: unicast receive state
#
# @broadcast-allowed: whether to receive broadcast
#
# @multicast-overflow: multicast table is overflowed or not
#
# @unicast-overflow: unicast table is overflowed or not
#
# @main-mac: the main macaddr string
#
# @vlan-table: a list of active vlan id
#
# @unicast-table: a list of unicast macaddr string
#
# @multicast-table: a list of multicast macaddr string
#
# Since 1.6
##

{ 'type': 'RxFilterInfo',
  'data': {
    'name':               'str',
    'promiscuous':        'bool',
    'multicast':          'RxState',
    'unicast':            'RxState',
    'broadcast-allowed':  'bool',
    'multicast-overflow': 'bool',
    'unicast-overflow':   'bool',
    'main-mac':           'str',
    'vlan-table':         ['int'],
    'unicast-table':      ['str'],
    'multicast-table':    ['str'] }}

##
# @query-rx-filter:
#
# Return rx-filter information for all NICs (or for the given NIC).
#
# @name: #optional net client name
#
# Returns: list of @RxFilterInfo for all NICs (or for the given NIC).
#          Returns an error if the given @name doesn't exist, or given
#          NIC doesn't support rx-filter querying, or given net client
#          isn't a NIC.
#
# Since: 1.6
##
{ 'command': 'query-rx-filter', 'data': { '*name': 'str' },
  'returns': ['RxFilterInfo'] }


##
# @BlockdevDiscardOptions
#
# Determines how to handle discard requests.
#
# @ignore:      Ignore the request
# @unmap:       Forward as an unmap request
#
# Since: 1.7
##
{ 'enum': 'BlockdevDiscardOptions',
  'data': [ 'ignore', 'unmap' ] }

##
# @BlockdevAioOptions
#
# Selects the AIO backend to handle I/O requests
#
# @threads:     Use qemu's thread pool
# @native:      Use native AIO backend (only Linux and Windows)
#
# Since: 1.7
##
{ 'enum': 'BlockdevAioOptions',
  'data': [ 'threads', 'native' ] }

##
# @BlockdevCacheOptions
#
# Includes cache-related options for block devices
#
# @writeback:   #optional enables writeback mode for any caches (default: true)
# @direct:      #optional enables use of O_DIRECT (bypass the host page cache;
#               default: false)
# @no-flush:    #optional ignore any flush requests for the device (default:
#               false)
#
# Since: 1.7
##
{ 'type': 'BlockdevCacheOptions',
  'data': { '*writeback': 'bool',
            '*direct': 'bool',
            '*no-flush': 'bool' } }

##
# @BlockdevOptionsBase
#
# Options that are available for all block devices, independent of the block
# driver.
#
# @driver:      block driver name
# @id:          #optional id by which the new block device can be referred to.
#               This is a required option on the top level of blockdev-add, and
#               currently not allowed on any other level.
# @discard:     #optional discard-related options (default: ignore)
# @cache:       #optional cache-related options
# @aio:         #optional AIO backend (default: threads)
# @rerror:      #optional how to handle read errors on the device
#               (default: report)
# @werror:      #optional how to handle write errors on the device
#               (default: enospc)
# @read-only:   #optional whether the block device should be read-only
#               (default: false)
#
# Since: 1.7
##
{ 'type': 'BlockdevOptionsBase',
  'data': { 'driver': 'str',
            '*id': 'str',
            '*discard': 'BlockdevDiscardOptions',
            '*cache': 'BlockdevCacheOptions',
            '*aio': 'BlockdevAioOptions',
            '*rerror': 'BlockdevOnError',
            '*werror': 'BlockdevOnError',
            '*read-only': 'bool' } }

##
# @BlockdevOptionsFile
#
# Driver specific block device options for the file backend and similar
# protocols.
#
# @filename:    path to the image file
#
# Since: 1.7
##
{ 'type': 'BlockdevOptionsFile',
  'data': { 'filename': 'str' } }

##
# @BlockdevOptionsVVFAT
#
# Driver specific block device options for the vvfat protocol.
#
# @dir:         directory to be exported as FAT image
# @fat-type:    #optional FAT type: 12, 16 or 32
# @floppy:      #optional whether to export a floppy image (true) or
#               partitioned hard disk (false; default)
# @rw:          #optional whether to allow write operations (default: false)
#
# Since: 1.7
##
{ 'type': 'BlockdevOptionsVVFAT',
  'data': { 'dir': 'str', '*fat-type': 'int', '*floppy': 'bool',
            '*rw': 'bool' } }

##
# @BlockdevOptionsGenericFormat
#
# Driver specific block device options for image format that have no option
# besides their data source.
#
# @file:        reference to or definition of the data source block device
#
# Since: 1.7
##
{ 'type': 'BlockdevOptionsGenericFormat',
  'data': { 'file': 'BlockdevRef' } }

##
# @BlockdevOptionsGenericCOWFormat
#
# Driver specific block device options for image format that have no option
# besides their data source and an optional backing file.
#
# @backing:     #optional reference to or definition of the backing file block
#               device (if missing, taken from the image file content). It is
#               allowed to pass an empty string here in order to disable the
#               default backing file.
#
# Since: 1.7
##
{ 'type': 'BlockdevOptionsGenericCOWFormat',
  'base': 'BlockdevOptionsGenericFormat',
  'data': { '*backing': 'BlockdevRef' } }

##
# @BlockdevOptionsQcow2
#
# Driver specific block device options for qcow2.
#
# @lazy-refcounts:        #optional whether to enable the lazy refcounts
#                         feature (default is taken from the image file)
#
# @pass-discard-request:  #optional whether discard requests to the qcow2
#                         device should be forwarded to the data source
#
# @pass-discard-snapshot: #optional whether discard requests for the data source
#                         should be issued when a snapshot operation (e.g.
#                         deleting a snapshot) frees clusters in the qcow2 file
#
# @pass-discard-other:    #optional whether discard requests for the data source
#                         should be issued on other occasions where a cluster
#                         gets freed
#
# Since: 1.7
##
{ 'type': 'BlockdevOptionsQcow2',
  'base': 'BlockdevOptionsGenericCOWFormat',
  'data': { '*lazy-refcounts': 'bool',
            '*pass-discard-request': 'bool',
            '*pass-discard-snapshot': 'bool',
            '*pass-discard-other': 'bool' } }

##
# @BlockdevOptions
#
# Options for creating a block device.
#
# Since: 1.7
##
{ 'union': 'BlockdevOptions',
  'base': 'BlockdevOptionsBase',
  'discriminator': 'driver',
  'data': {
      'file':       'BlockdevOptionsFile',
      'http':       'BlockdevOptionsFile',
      'https':      'BlockdevOptionsFile',
      'ftp':        'BlockdevOptionsFile',
      'ftps':       'BlockdevOptionsFile',
      'tftp':       'BlockdevOptionsFile',
# TODO gluster: Wait for structured options
# TODO iscsi: Wait for structured options
# TODO nbd: Should take InetSocketAddress for 'host'?
# TODO rbd: Wait for structured options
# TODO sheepdog: Wait for structured options
# TODO ssh: Should take InetSocketAddress for 'host'?
      'vvfat':      'BlockdevOptionsVVFAT',

# TODO blkdebug: Wait for structured options
# TODO blkverify: Wait for structured options

      'bochs':      'BlockdevOptionsGenericFormat',
      'cloop':      'BlockdevOptionsGenericFormat',
      'cow':        'BlockdevOptionsGenericCOWFormat',
      'dmg':        'BlockdevOptionsGenericFormat',
      'parallels':  'BlockdevOptionsGenericFormat',
      'qcow':       'BlockdevOptionsGenericCOWFormat',
      'qcow2':      'BlockdevOptionsQcow2',
      'qed':        'BlockdevOptionsGenericCOWFormat',
      'raw':        'BlockdevOptionsGenericFormat',
      'vdi':        'BlockdevOptionsGenericFormat',
      'vhdx':       'BlockdevOptionsGenericFormat',
      'vmdk':       'BlockdevOptionsGenericCOWFormat',
      'vpc':        'BlockdevOptionsGenericFormat'
  } }

##
# @BlockdevRef
#
# Reference to a block device.
#
# @definition:      defines a new block device inline
# @reference:       references the ID of an existing block device. An
#                   empty string means that no block device should be
#                   referenced.
#
# Since: 1.7
##
{ 'union': 'BlockdevRef',
  'discriminator': {},
  'data': { 'definition': 'BlockdevOptions',
            'reference': 'str' } }

##
# @blockdev-add:
#
# Creates a new block device.
#
# @options: block device options for the new device
#
# Since: 1.7
##
{ 'command': 'blockdev-add', 'data': { 'options': 'BlockdevOptions' } }