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trace: Identify events with the 'vcpu' property

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A new event attribute 'cpu_id' is added to have a separate ID
space ('TRACE_VCPU_*') for all events with the 'vcpu' property.

These are later used to identify which events are enabled on each vCPU.

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Lluís Vilanova 2016-07-11 12:53:24 +02:00 • committed by Stefan Hajnoczi
parent 6913e79c36
commit 17f7ac75df
5 changed files with 51 additions and 5 deletions
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17
trace/control.h
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@ -85,6 +85,23 @@ static TraceEventID trace_event_count(void);
*/
static TraceEventID trace_event_get_id(TraceEvent *ev);
/**
* trace_event_get_vcpu_id:
*
* Get the per-vCPU identifier of an event.
*
* Special value #TRACE_VCPU_EVENT_COUNT means the event is not vCPU-specific
* (does not have the "vcpu" property).
*/
static TraceEventVCPUID trace_event_get_vcpu_id(TraceEvent *ev);
/**
* trace_event_is_vcpu:
*
* Whether this is a per-vCPU event.
*/
static bool trace_event_is_vcpu(TraceEvent *ev);
/**
* trace_event_get_name:
*