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Subject[PATCH 09/11] perf intel-pt: Adjust sample flags for VM-Exit
Date
Use the change of NR to detect whether an asynchronous branch is a VM-Exit.

Note VM-Entry is determined from the vmlaunch or vmresume instruction,
in which case, sample flags will show "VMentry" even if the VM-Entry fails.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/util/intel-pt.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 546d512b300a..cafb3943d5f6 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -1201,13 +1201,16 @@ static void intel_pt_sample_flags(struct intel_pt_queue *ptq)
if (ptq->state->flags & INTEL_PT_ABORT_TX) {
ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TX_ABORT;
} else if (ptq->state->flags & INTEL_PT_ASYNC) {
- if (ptq->state->to_ip)
+ if (!ptq->state->to_ip)
+ ptq->flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_TRACE_END;
+ else if (ptq->state->from_nr && !ptq->state->to_nr)
+ ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_VMEXIT;
+ else
ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL |
PERF_IP_FLAG_ASYNC |
PERF_IP_FLAG_INTERRUPT;
- else
- ptq->flags = PERF_IP_FLAG_BRANCH |
- PERF_IP_FLAG_TRACE_END;
ptq->insn_len = 0;
} else {
if (ptq->state->from_ip)
--
2.17.1
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