/*
* Interface for configuring and controlling the state of tracing events.
*
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
{
CPUState *vcpu;
assert(trace_event_get_state_static(ev));
- if (trace_event_is_vcpu(ev)) {
+ if (trace_event_is_vcpu(ev) && likely(first_cpu != NULL)) {
CPU_FOREACH(vcpu) {
trace_event_set_vcpu_state_dynamic(vcpu, ev, state);
}
} else {
- /* Without the "vcpu" property, dstate can only be 1 or 0 */
+ /*
+ * Without the "vcpu" property, dstate can only be 1 or 0. With it, we
+ * haven't instantiated any vCPU yet, so we will set a global state
+ * instead, and trace_init_vcpu will reconcile it afterwards.
+ */
bool state_pre = *ev->dstate;
if (state_pre != state) {
if (state) {