64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*
|
|
* Interface for configuring and controlling the state of tracing events.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef TRACE__CONTROL_VCPU_H
|
|
#define TRACE__CONTROL_VCPU_H
|
|
|
|
#include "control.h"
|
|
#include "event-internal.h"
|
|
#include "hw/core/cpu.h"
|
|
|
|
/**
|
|
* trace_event_get_vcpu_state:
|
|
* @vcpu: Target vCPU.
|
|
* @id: Event identifier name.
|
|
*
|
|
* Get the tracing state of an event (both static and dynamic) for the given
|
|
* vCPU.
|
|
*
|
|
* If the event has the disabled property, the check will have no performance
|
|
* impact.
|
|
*/
|
|
#define trace_event_get_vcpu_state(vcpu, id) \
|
|
((id ##_ENABLED) && \
|
|
trace_event_get_vcpu_state_dynamic_by_vcpu_id( \
|
|
vcpu, _ ## id ## _EVENT.vcpu_id))
|
|
|
|
/**
|
|
* trace_event_get_vcpu_state_dynamic:
|
|
*
|
|
* Get the dynamic tracing state of an event for the given vCPU.
|
|
*/
|
|
static bool trace_event_get_vcpu_state_dynamic(CPUState *vcpu, TraceEvent *ev);
|
|
|
|
#include "control-internal.h"
|
|
|
|
static inline bool
|
|
trace_event_get_vcpu_state_dynamic_by_vcpu_id(CPUState *vcpu,
|
|
uint32_t vcpu_id)
|
|
{
|
|
/* it's on fast path, avoid consistency checks (asserts) */
|
|
if (unlikely(trace_events_enabled_count)) {
|
|
return test_bit(vcpu_id, vcpu->trace_dstate);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static inline bool trace_event_get_vcpu_state_dynamic(CPUState *vcpu,
|
|
TraceEvent *ev)
|
|
{
|
|
uint32_t vcpu_id;
|
|
assert(trace_event_is_vcpu(ev));
|
|
vcpu_id = trace_event_get_vcpu_id(ev);
|
|
return trace_event_get_vcpu_state_dynamic_by_vcpu_id(vcpu, vcpu_id);
|
|
}
|
|
|
|
#endif
|