diff options
| -rw-r--r-- | qom/cpu.c | 2 | ||||
| -rw-r--r-- | trace/control.c | 16 | ||||
| -rw-r--r-- | trace/control.h | 8 |
3 files changed, 26 insertions, 0 deletions
@@ -348,6 +348,8 @@ static void cpu_common_realizefn(DeviceState *dev, Error **errp) static void cpu_common_unrealizefn(DeviceState *dev, Error **errp) { CPUState *cpu = CPU(dev); + /* NOTE: latest generic point before the cpu is fully unrealized */ + trace_fini_vcpu(cpu); cpu_exec_unrealizefn(cpu); } diff --git a/trace/control.c b/trace/control.c index 1a7bee6ddc..cb79bb17ec 100644 --- a/trace/control.c +++ b/trace/control.c @@ -259,6 +259,22 @@ void trace_init_file(const char *file) #endif } +void trace_fini_vcpu(CPUState *vcpu) +{ + TraceEventIter iter; + TraceEvent *ev; + + trace_event_iter_init(&iter, NULL); + while ((ev = trace_event_iter_next(&iter)) != NULL) { + if (trace_event_is_vcpu(ev) && + trace_event_get_state_static(ev) && + trace_event_get_vcpu_state_dynamic(vcpu, ev)) { + /* must disable to affect the global counter */ + trace_event_set_vcpu_state_dynamic(vcpu, ev, false); + } + } +} + bool trace_init_backends(void) { #ifdef CONFIG_TRACE_SIMPLE diff --git a/trace/control.h b/trace/control.h index ccaeac8552..4ea53e2986 100644 --- a/trace/control.h +++ b/trace/control.h @@ -202,6 +202,14 @@ void trace_init_file(const char *file); void trace_init_vcpu(CPUState *vcpu); /** + * trace_fini_vcpu: + * @vcpu: Removed vCPU. + * + * Disable dynamic event state for a hot-unplugged vCPU. + */ +void trace_fini_vcpu(CPUState *vcpu); + +/** * trace_list_events: * * List all available events. |