qapi/trace.json

   1 # -*- mode: python -*-
   2 # vim: filetype=python
   3 #
   4 # Copyright (C) 2011-2016 Lluís Vilanova <vilanova@ac.upc.edu>
   5 #
   6 # This work is licensed under the terms of the GNU GPL, version 2 or later.
   7 # See the COPYING file in the top-level directory.
   8
   9 ##
  10 # = Tracing
  11 ##
  12
  13 ##
  14 # @TraceEventState:
  15 #
  16 # State of a tracing event.
  17 #
  18 # @unavailable: The event is statically disabled.
  19 #
  20 # @disabled: The event is dynamically disabled.
  21 #
  22 # @enabled: The event is dynamically enabled.
  23 #
  24 # Since: 2.2
  25 ##
  26 { 'enum': 'TraceEventState',
  27   'data': ['unavailable', 'disabled', 'enabled'] }
  28
  29 ##
  30 # @TraceEventInfo:
  31 #
  32 # Information of a tracing event.
  33 #
  34 # @name: Event name.
  35 #
  36 # @state: Tracing state.
  37 #
  38 # @vcpu: Whether this is a per-vCPU event (since 2.7).
  39 #
  40 # Features:
  41 #
  42 # @deprecated: Member @vcpu is deprecated, and always ignored.
  43 #
  44 # Since: 2.2
  45 ##
  46 { 'struct': 'TraceEventInfo',
  47   'data': {'name': 'str', 'state': 'TraceEventState',
  48            'vcpu': { 'type': 'bool', 'features': ['deprecated'] } } }
  49
  50 ##
  51 # @trace-event-get-state:
  52 #
  53 # Query the state of events.
  54 #
  55 # @name: Event name pattern (case-sensitive glob).
  56 #
  57 # @vcpu: The vCPU to query (since 2.7).
  58 #
  59 # Features:
  60 #
  61 # @deprecated: Member @vcpu is deprecated, and always ignored.
  62 #
  63 # Returns: a list of @TraceEventInfo for the matching events
  64 #
  65 # Since: 2.2
  66 #
  67 # Example:
  68 #
  69 # -> { "execute": "trace-event-get-state",
  70 #      "arguments": { "name": "qemu_memalign" } }
  71 # <- { "return": [ { "name": "qemu_memalign", "state": "disabled", "vcpu": false } ] }
  72 ##
  73 { 'command': 'trace-event-get-state',
  74   'data': {'name': 'str',
  75            '*vcpu': {'type': 'int', 'features': ['deprecated'] } },
  76   'returns': ['TraceEventInfo'] }
  77
  78 ##
  79 # @trace-event-set-state:
  80 #
  81 # Set the dynamic tracing state of events.
  82 #
  83 # @name: Event name pattern (case-sensitive glob).
  84 #
  85 # @enable: Whether to enable tracing.
  86 #
  87 # @ignore-unavailable: Do not match unavailable events with @name.
  88 #
  89 # @vcpu: The vCPU to act upon (all by default; since 2.7).
  90 #
  91 # Features:
  92 #
  93 # @deprecated: Member @vcpu is deprecated, and always ignored.
  94 #
  95 # Since: 2.2
  96 #
  97 # Example:
  98 #
  99 # -> { "execute": "trace-event-set-state",
 100 #      "arguments": { "name": "qemu_memalign", "enable": true } }
 101 # <- { "return": {} }
 102 ##
 103 { 'command': 'trace-event-set-state',
 104   'data': {'name': 'str', 'enable': 'bool', '*ignore-unavailable': 'bool',
 105            '*vcpu': {'type': 'int', 'features': ['deprecated'] } } }