From 82e95ec847757c1a2b6accf0e8312925ada3dca8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Llu=C3=ADs=20Vilanova?= Date: Mon, 26 Dec 2016 22:24:40 +0100 Subject: trace: Fix dynamic event state on vCPU hot-unplug MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We need to disable per-vCPU events on a vCPU that is hot-unplugged to keep the dynamic event state global counters consistent. Signed-off-by: Lluís Vilanova Message-id: 148278748055.1404.1570530281528619895.stgit@fimbulvetr.bsc.es Signed-off-by: Stefan Hajnoczi --- trace/control.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'trace/control.c') 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 -- cgit v1.2.1