2bfe11c8fa
Every time a vCPU is hot-plugged, it will "inherit" its tracing state from the global state array. That is, if *any* existing vCPU has an event enabled, new vCPUs will have too. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Message-id: 147428970768.15111.7664565956870423529.stgit@fimbulvetr.bsc.es Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
|
|
* Interface for configuring and controlling the state of tracing events.
|
|
*
|
|
* Copyright (C) 2014-2016 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.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "trace/control.h"
|
|
|
|
|
|
void trace_event_set_state_dynamic_init(TraceEvent *ev, bool state)
|
|
{
|
|
trace_event_set_state_dynamic(ev, state);
|
|
}
|
|
|
|
void trace_event_set_state_dynamic(TraceEvent *ev, bool state)
|
|
{
|
|
TraceEventID id;
|
|
bool state_pre;
|
|
assert(trace_event_get_state_static(ev));
|
|
id = trace_event_get_id(ev);
|
|
/*
|
|
* We ignore the "vcpu" property here, since there's no target code. Then
|
|
* dstate can only be 1 or 0.
|
|
*/
|
|
state_pre = trace_events_dstate[id];
|
|
if (state_pre != state) {
|
|
if (state) {
|
|
trace_events_enabled_count++;
|
|
trace_events_dstate[id] = 1;
|
|
} else {
|
|
trace_events_enabled_count--;
|
|
trace_events_dstate[id] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
void trace_event_set_vcpu_state_dynamic(CPUState *vcpu,
|
|
TraceEvent *ev, bool state)
|
|
{
|
|
/* should never be called on non-target binaries */
|
|
abort();
|
|
}
|
|
|
|
void trace_init_vcpu(CPUState *vcpu)
|
|
{
|
|
/* should never be called on non-target binaries */
|
|
abort();
|
|
}
|