mirror of
https://github.com/qemu/qemu.git
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26ec4e53f2
The current doc generation doesn't care much about indentation levels,
but we would like to switch to an rST format, and rST does care about
indentation.
Make the doc comments more strongly consistent about indentation
for multiline constructs like:
@arg: description line 1
description line 2
Returns: line one
line 2
so that there is always exactly one space after the colon, and
subsequent lines align with the first.
This commit is a purely whitespace change, and it does not alter the
generated .texi files (because the texi generation code strips away
all the extra whitespace). This does mean that we end up with some
over-length lines.
Note that when the documentation for an argument fits on a single
line like this:
@arg: one line only
then stray extra spaces after the ':' don't affect the rST output, so
I have not attempted to methodically fix them, though the preference
is a single space here too.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200213175647.17628-10-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
477 lines
11 KiB
Python
477 lines
11 KiB
Python
# -*- Mode: Python -*-
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#
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##
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# = VM run state
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##
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##
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# @RunState:
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#
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# An enumeration of VM run states.
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#
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# @debug: QEMU is running on a debugger
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#
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# @finish-migrate: guest is paused to finish the migration process
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#
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# @inmigrate: guest is paused waiting for an incoming migration. Note
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# that this state does not tell whether the machine will start at the
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# end of the migration. This depends on the command-line -S option and
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# any invocation of 'stop' or 'cont' that has happened since QEMU was
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# started.
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#
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# @internal-error: An internal error that prevents further guest execution
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# has occurred
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#
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# @io-error: the last IOP has failed and the device is configured to pause
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# on I/O errors
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#
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# @paused: guest has been paused via the 'stop' command
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#
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# @postmigrate: guest is paused following a successful 'migrate'
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#
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# @prelaunch: QEMU was started with -S and guest has not started
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#
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# @restore-vm: guest is paused to restore VM state
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#
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# @running: guest is actively running
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#
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# @save-vm: guest is paused to save the VM state
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#
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# @shutdown: guest is shut down (and -no-shutdown is in use)
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#
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# @suspended: guest is suspended (ACPI S3)
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#
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# @watchdog: the watchdog action is configured to pause and has been triggered
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#
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# @guest-panicked: guest has been panicked as a result of guest OS panic
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#
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# @colo: guest is paused to save/restore VM state under colo checkpoint,
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# VM can not get into this state unless colo capability is enabled
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# for migration. (since 2.8)
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# @preconfig: QEMU is paused before board specific init callback is executed.
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# The state is reachable only if the --preconfig CLI option is used.
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# (Since 3.0)
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##
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{ 'enum': 'RunState',
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'data': [ 'debug', 'inmigrate', 'internal-error', 'io-error', 'paused',
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'postmigrate', 'prelaunch', 'finish-migrate', 'restore-vm',
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'running', 'save-vm', 'shutdown', 'suspended', 'watchdog',
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'guest-panicked', 'colo', 'preconfig' ] }
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##
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# @ShutdownCause:
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#
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# An enumeration of reasons for a Shutdown.
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#
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# @none: No shutdown request pending
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#
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# @host-error: An error prevents further use of guest
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#
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# @host-qmp-quit: Reaction to the QMP command 'quit'
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#
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# @host-qmp-system-reset: Reaction to the QMP command 'system_reset'
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#
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# @host-signal: Reaction to a signal, such as SIGINT
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#
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# @host-ui: Reaction to a UI event, like window close
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#
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# @guest-shutdown: Guest shutdown/suspend request, via ACPI or other
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# hardware-specific means
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#
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# @guest-reset: Guest reset request, and command line turns that into
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# a shutdown
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#
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# @guest-panic: Guest panicked, and command line turns that into a shutdown
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#
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# @subsystem-reset: Partial guest reset that does not trigger QMP events and
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# ignores --no-reboot. This is useful for sanitizing
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# hypercalls on s390 that are used during kexec/kdump/boot
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#
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##
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{ 'enum': 'ShutdownCause',
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# Beware, shutdown_caused_by_guest() depends on enumeration order
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'data': [ 'none', 'host-error', 'host-qmp-quit', 'host-qmp-system-reset',
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'host-signal', 'host-ui', 'guest-shutdown', 'guest-reset',
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'guest-panic', 'subsystem-reset'] }
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##
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# @StatusInfo:
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#
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# Information about VCPU run state
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#
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# @running: true if all VCPUs are runnable, false if not runnable
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#
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# @singlestep: true if VCPUs are in single-step mode
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#
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# @status: the virtual machine @RunState
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#
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# Since: 0.14.0
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#
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# Notes: @singlestep is enabled through the GDB stub
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##
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{ 'struct': 'StatusInfo',
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'data': {'running': 'bool', 'singlestep': 'bool', 'status': 'RunState'} }
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##
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# @query-status:
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#
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# Query the run status of all VCPUs
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#
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# Returns: @StatusInfo reflecting all VCPUs
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#
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# Since: 0.14.0
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#
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# Example:
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#
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# -> { "execute": "query-status" }
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# <- { "return": { "running": true,
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# "singlestep": false,
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# "status": "running" } }
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#
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##
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{ 'command': 'query-status', 'returns': 'StatusInfo',
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'allow-preconfig': true }
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##
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# @SHUTDOWN:
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#
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# Emitted when the virtual machine has shut down, indicating that qemu is
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# about to exit.
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#
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# @guest: If true, the shutdown was triggered by a guest request (such as
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# a guest-initiated ACPI shutdown request or other hardware-specific action)
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# rather than a host request (such as sending qemu a SIGINT). (since 2.10)
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#
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# @reason: The @ShutdownCause which resulted in the SHUTDOWN. (since 4.0)
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#
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# Note: If the command-line option "-no-shutdown" has been specified, qemu will
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# not exit, and a STOP event will eventually follow the SHUTDOWN event
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#
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# Since: 0.12.0
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#
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# Example:
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#
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# <- { "event": "SHUTDOWN", "data": { "guest": true },
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# "timestamp": { "seconds": 1267040730, "microseconds": 682951 } }
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#
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##
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{ 'event': 'SHUTDOWN', 'data': { 'guest': 'bool', 'reason': 'ShutdownCause' } }
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##
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# @POWERDOWN:
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#
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# Emitted when the virtual machine is powered down through the power control
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# system, such as via ACPI.
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#
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# Since: 0.12.0
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#
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# Example:
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#
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# <- { "event": "POWERDOWN",
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# "timestamp": { "seconds": 1267040730, "microseconds": 682951 } }
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#
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##
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{ 'event': 'POWERDOWN' }
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##
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# @RESET:
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#
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# Emitted when the virtual machine is reset
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#
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# @guest: If true, the reset was triggered by a guest request (such as
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# a guest-initiated ACPI reboot request or other hardware-specific action)
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# rather than a host request (such as the QMP command system_reset).
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# (since 2.10)
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#
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# @reason: The @ShutdownCause of the RESET. (since 4.0)
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#
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# Since: 0.12.0
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#
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# Example:
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#
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# <- { "event": "RESET", "data": { "guest": false },
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# "timestamp": { "seconds": 1267041653, "microseconds": 9518 } }
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#
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##
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{ 'event': 'RESET', 'data': { 'guest': 'bool', 'reason': 'ShutdownCause' } }
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##
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# @STOP:
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#
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# Emitted when the virtual machine is stopped
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#
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# Since: 0.12.0
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#
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# Example:
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#
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# <- { "event": "STOP",
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# "timestamp": { "seconds": 1267041730, "microseconds": 281295 } }
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#
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##
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{ 'event': 'STOP' }
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##
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# @RESUME:
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#
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# Emitted when the virtual machine resumes execution
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#
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# Since: 0.12.0
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#
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# Example:
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#
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# <- { "event": "RESUME",
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# "timestamp": { "seconds": 1271770767, "microseconds": 582542 } }
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#
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##
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{ 'event': 'RESUME' }
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##
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# @SUSPEND:
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#
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# Emitted when guest enters a hardware suspension state, for example, S3 state,
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# which is sometimes called standby state
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#
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# Since: 1.1
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#
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# Example:
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#
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# <- { "event": "SUSPEND",
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# "timestamp": { "seconds": 1344456160, "microseconds": 309119 } }
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#
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##
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{ 'event': 'SUSPEND' }
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##
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# @SUSPEND_DISK:
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#
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# Emitted when guest enters a hardware suspension state with data saved on
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# disk, for example, S4 state, which is sometimes called hibernate state
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#
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# Note: QEMU shuts down (similar to event @SHUTDOWN) when entering this state
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#
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# Since: 1.2
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#
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# Example:
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#
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# <- { "event": "SUSPEND_DISK",
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# "timestamp": { "seconds": 1344456160, "microseconds": 309119 } }
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#
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##
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{ 'event': 'SUSPEND_DISK' }
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##
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# @WAKEUP:
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#
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# Emitted when the guest has woken up from suspend state and is running
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#
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# Since: 1.1
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#
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# Example:
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#
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# <- { "event": "WAKEUP",
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# "timestamp": { "seconds": 1344522075, "microseconds": 745528 } }
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#
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##
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{ 'event': 'WAKEUP' }
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##
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# @WATCHDOG:
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#
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# Emitted when the watchdog device's timer is expired
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#
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# @action: action that has been taken
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#
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# Note: If action is "reset", "shutdown", or "pause" the WATCHDOG event is
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# followed respectively by the RESET, SHUTDOWN, or STOP events
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#
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# Note: This event is rate-limited.
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#
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# Since: 0.13.0
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#
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# Example:
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#
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# <- { "event": "WATCHDOG",
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# "data": { "action": "reset" },
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# "timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
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#
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##
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{ 'event': 'WATCHDOG',
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'data': { 'action': 'WatchdogAction' } }
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##
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# @WatchdogAction:
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#
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# An enumeration of the actions taken when the watchdog device's timer is
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# expired
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#
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# @reset: system resets
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#
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# @shutdown: system shutdown, note that it is similar to @powerdown, which
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# tries to set to system status and notify guest
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#
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# @poweroff: system poweroff, the emulator program exits
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#
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# @pause: system pauses, similar to @stop
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#
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# @debug: system enters debug state
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#
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# @none: nothing is done
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#
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# @inject-nmi: a non-maskable interrupt is injected into the first VCPU (all
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# VCPUS on x86) (since 2.4)
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#
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# Since: 2.1
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##
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{ 'enum': 'WatchdogAction',
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'data': [ 'reset', 'shutdown', 'poweroff', 'pause', 'debug', 'none',
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'inject-nmi' ] }
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##
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# @watchdog-set-action:
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#
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# Set watchdog action
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#
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# Since: 2.11
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##
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{ 'command': 'watchdog-set-action', 'data' : {'action': 'WatchdogAction'} }
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##
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# @GUEST_PANICKED:
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#
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# Emitted when guest OS panic is detected
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#
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# @action: action that has been taken, currently always "pause"
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#
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# @info: information about a panic (since 2.9)
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#
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# Since: 1.5
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#
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# Example:
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#
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# <- { "event": "GUEST_PANICKED",
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# "data": { "action": "pause" } }
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#
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##
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{ 'event': 'GUEST_PANICKED',
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'data': { 'action': 'GuestPanicAction', '*info': 'GuestPanicInformation' } }
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##
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# @GUEST_CRASHLOADED:
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#
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# Emitted when guest OS crash loaded is detected
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#
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# @action: action that has been taken, currently always "run"
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#
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# @info: information about a panic
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#
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# Since: 5.0
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#
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# Example:
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#
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# <- { "event": "GUEST_CRASHLOADED",
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# "data": { "action": "run" } }
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#
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##
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{ 'event': 'GUEST_CRASHLOADED',
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'data': { 'action': 'GuestPanicAction', '*info': 'GuestPanicInformation' } }
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##
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# @GuestPanicAction:
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#
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# An enumeration of the actions taken when guest OS panic is detected
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#
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# @pause: system pauses
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#
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# Since: 2.1 (poweroff since 2.8, run since 5.0)
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##
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{ 'enum': 'GuestPanicAction',
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'data': [ 'pause', 'poweroff', 'run' ] }
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##
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# @GuestPanicInformationType:
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#
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# An enumeration of the guest panic information types
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#
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# @hyper-v: hyper-v guest panic information type
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#
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# @s390: s390 guest panic information type (Since: 2.12)
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#
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# Since: 2.9
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##
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{ 'enum': 'GuestPanicInformationType',
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'data': [ 'hyper-v', 's390' ] }
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##
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# @GuestPanicInformation:
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#
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# Information about a guest panic
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#
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# @type: Crash type that defines the hypervisor specific information
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#
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# Since: 2.9
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##
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{'union': 'GuestPanicInformation',
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'base': {'type': 'GuestPanicInformationType'},
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'discriminator': 'type',
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'data': { 'hyper-v': 'GuestPanicInformationHyperV',
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's390': 'GuestPanicInformationS390' } }
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##
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# @GuestPanicInformationHyperV:
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#
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# Hyper-V specific guest panic information (HV crash MSRs)
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#
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# Since: 2.9
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##
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{'struct': 'GuestPanicInformationHyperV',
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'data': { 'arg1': 'uint64',
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'arg2': 'uint64',
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'arg3': 'uint64',
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'arg4': 'uint64',
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'arg5': 'uint64' } }
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##
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# @S390CrashReason:
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#
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# Reason why the CPU is in a crashed state.
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#
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# @unknown: no crash reason was set
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#
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# @disabled-wait: the CPU has entered a disabled wait state
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#
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# @extint-loop: clock comparator or cpu timer interrupt with new PSW enabled
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# for external interrupts
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#
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# @pgmint-loop: program interrupt with BAD new PSW
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#
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# @opint-loop: operation exception interrupt with invalid code at the program
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# interrupt new PSW
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#
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# Since: 2.12
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##
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{ 'enum': 'S390CrashReason',
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'data': [ 'unknown',
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'disabled-wait',
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'extint-loop',
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'pgmint-loop',
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'opint-loop' ] }
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##
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# @GuestPanicInformationS390:
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#
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# S390 specific guest panic information (PSW)
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#
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# @core: core id of the CPU that crashed
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# @psw-mask: control fields of guest PSW
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# @psw-addr: guest instruction address
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# @reason: guest crash reason
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#
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# Since: 2.12
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##
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{'struct': 'GuestPanicInformationS390',
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'data': { 'core': 'uint32',
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'psw-mask': 'uint64',
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'psw-addr': 'uint64',
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'reason': 'S390CrashReason' } }
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