cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

event-internal.h (1236B)

      1/*
      2 * Interface for configuring and controlling the state of tracing events.
      3 *
      4 * Copyright (C) 2012-2016 Lluís Vilanova <vilanova@ac.upc.edu>
      5 *
      6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
      7 * See the COPYING file in the top-level directory.
      8 */
      9
     10#ifndef TRACE__EVENT_INTERNAL_H
     11#define TRACE__EVENT_INTERNAL_H
     12
     13/*
     14 * Special value for TraceEvent.vcpu_id field to indicate
     15 * that the event is not VCPU specific
     16 */
     17#define TRACE_VCPU_EVENT_NONE ((uint32_t)-1)
     18
     19/**
     20 * TraceEvent:
     21 * @id: Unique event identifier.
     22 * @vcpu_id: Unique per-vCPU event identifier.
     23 * @name: Event name.
     24 * @sstate: Static tracing state.
     25 * @dstate: Dynamic tracing state
     26 *
     27 * Interpretation of @dstate depends on whether the event has the 'vcpu'
     28 *  property:
     29 * - false: Boolean value indicating whether the event is active.
     30 * - true : Integral counting the number of vCPUs that have this event enabled.
     31 *
     32 * Opaque generic description of a tracing event.
     33 */
     34typedef struct TraceEvent {
     35    uint32_t id;
     36    uint32_t vcpu_id;
     37    const char * name;
     38    const bool sstate;
     39    uint16_t *dstate;
     40} TraceEvent;
     41
     42void trace_event_set_state_dynamic_init(TraceEvent *ev, bool state);
     43
     44#endif /* TRACE__EVENT_INTERNAL_H */