On 11/24/2015 10:09 AM, Lluís Vilanova wrote: > Each event with the 'vcpu' property gets a per-vCPU dynamic tracing state. > > The set of enabled events with the 'vcpu' and 'tcg' properties is used > to select a per-vCPU physical TB cache. The number of events with both > properties is used to select the number of physical TB caches, and a > bitmap of the identifiers of such enabled events is used to select a > physical TB cache. > > Signed-off-by: Lluís Vilanova <[email protected]> > ---
> +++ b/qapi/trace.json
> @@ -29,7 +29,7 @@
> #
> # @name: Event name.
> # @state: Tracing state.
> -# @vcpu: Whether this is a per-vCPU event (since 2.5).
> +# @vcpu: #optional Whether this is a per-vCPU event (since 2.5).
> #
> # Since 2.2
> ##
Spurious hunk? It looks like vcpu is always present on output, and that
it is only...
> @@ -42,13 +42,18 @@
> # Query the state of events.
> #
> # @name: Event name pattern (case-sensitive glob).
> +# @vcpu: #optional The vCPU to check (any by default; since 2.5).
...the new input place where it is optional.
2.6.
> #
> # Returns: a list of @TraceEventInfo for the matching events
> #
> +# For any event without the "vcpu" property:
> +# - If @name is a pattern and @vcpu is set, events are ignored.
> +# - If @name is not a pattern and @vcpu is set, an error is raised.
> +#
> # Since 2.2
> ##
> { 'command': 'trace-event-get-state',
> - 'data': {'name': 'str'},
> + 'data': {'name': 'str', '*vcpu': 'int'},
> 'returns': ['TraceEventInfo'] }
>
> ##
> @@ -59,8 +64,10 @@
> # @name: Event name pattern (case-sensitive glob).
> # @enable: Whether to enable tracing.
> # @ignore-unavailable: #optional Do not match unavailable events with @name.
> +# @vcpu: The vCPU to act upon (all by default; since 2.5).
2.6
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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