77e2b17272
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
91 lines
2.5 KiB
Python
91 lines
2.5 KiB
Python
# -*- mode: python -*-
|
|
#
|
|
# Copyright (C) 2011-2016 Lluís Vilanova <vilanova@ac.upc.edu>
|
|
#
|
|
# This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
# See the COPYING file in the top-level directory.
|
|
|
|
|
|
##
|
|
# @TraceEventState:
|
|
#
|
|
# State of a tracing event.
|
|
#
|
|
# @unavailable: The event is statically disabled.
|
|
#
|
|
# @disabled: The event is dynamically disabled.
|
|
#
|
|
# @enabled: The event is dynamically enabled.
|
|
#
|
|
# Since 2.2
|
|
##
|
|
{ 'enum': 'TraceEventState',
|
|
'data': ['unavailable', 'disabled', 'enabled'] }
|
|
|
|
##
|
|
# @TraceEventInfo:
|
|
#
|
|
# Information of a tracing event.
|
|
#
|
|
# @name: Event name.
|
|
# @state: Tracing state.
|
|
# @vcpu: Whether this is a per-vCPU event (since 2.7).
|
|
#
|
|
# An event is per-vCPU if it has the "vcpu" property in the "trace-events"
|
|
# files.
|
|
#
|
|
# Since 2.2
|
|
##
|
|
{ 'struct': 'TraceEventInfo',
|
|
'data': {'name': 'str', 'state': 'TraceEventState', 'vcpu': 'bool'} }
|
|
|
|
##
|
|
# @trace-event-get-state:
|
|
#
|
|
# Query the state of events.
|
|
#
|
|
# @name: Event name pattern (case-sensitive glob).
|
|
# @vcpu: #optional The vCPU to query (any by default; since 2.7).
|
|
#
|
|
# Returns: a list of @TraceEventInfo for the matching events
|
|
#
|
|
# An event is returned if:
|
|
# - its name matches the @name pattern, and
|
|
# - if @vcpu is given, the event has the "vcpu" property.
|
|
#
|
|
# Therefore, if @vcpu is given, the operation will only match per-vCPU events,
|
|
# returning their state on the specified vCPU. Special case: if @name is an
|
|
# exact match, @vcpu is given and the event does not have the "vcpu" property,
|
|
# an error is returned.
|
|
#
|
|
# Since 2.2
|
|
##
|
|
{ 'command': 'trace-event-get-state',
|
|
'data': {'name': 'str', '*vcpu': 'int'},
|
|
'returns': ['TraceEventInfo'] }
|
|
|
|
##
|
|
# @trace-event-set-state:
|
|
#
|
|
# Set the dynamic tracing state of events.
|
|
#
|
|
# @name: Event name pattern (case-sensitive glob).
|
|
# @enable: Whether to enable tracing.
|
|
# @ignore-unavailable: #optional Do not match unavailable events with @name.
|
|
# @vcpu: #optional The vCPU to act upon (all by default; since 2.7).
|
|
#
|
|
# An event's state is modified if:
|
|
# - its name matches the @name pattern, and
|
|
# - if @vcpu is given, the event has the "vcpu" property.
|
|
#
|
|
# Therefore, if @vcpu is given, the operation will only match per-vCPU events,
|
|
# setting their state on the specified vCPU. Special case: if @name is an exact
|
|
# match, @vcpu is given and the event does not have the "vcpu" property, an
|
|
# error is returned.
|
|
#
|
|
# Since 2.2
|
|
##
|
|
{ 'command': 'trace-event-set-state',
|
|
'data': {'name': 'str', 'enable': 'bool', '*ignore-unavailable': 'bool',
|
|
'*vcpu': 'int'} }
|