/* * Interface for configuring and controlling the state of tracing events. * * Copyright (C) 2011-2016 LluĂs 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