[qemu.git] / qapi-schema.json

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

##
# @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 enumation of VM run states.
#
# @debug: QEMU is running on a debugger
#
# @inmigrate: guest is paused waiting for an incoming migration
#
# @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
#
# @finish-migrate: guest is paused to finish the migration process
#
# @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)
#
# @watchdog: the watchdog action is configured to pause and has been triggered
##
{ 'enum': 'RunState',
  'data': [ 'debug', 'inmigrate', 'internal-error', 'io-error', 'paused',
            'postmigrate', 'prelaunch', 'finish-migrate', 'restore-vm',
            'running', 'save-vm', 'shutdown', 'watchdog' ] }

##
# @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'] }

##
# @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'] }

##
# @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
#
# Since: 0.14.0.
##
{ 'type': 'MigrationStats',
  'data': {'transferred': 'int', 'remaining': 'int', 'total': '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'
#
# @disk: #optional @MigrationStats containing detailed disk migration
#        status, only returned if status is 'active' and it is a block
#        migration
#
# Since: 0.14.0
##
{ 'type': 'MigrationInfo',
  'data': {'*status': 'str', '*ram': 'MigrationStats',
           '*disk': 'MigrationStats'} }

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

##
# @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'] }

##
# @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
##
{ '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'} }