diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2021-02-18 10:57:59 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-02-18 20:15:26 +0100 |
| commit | 695fc4510615f8db40ebaf7a2c011f0a594b5f77 (patch) | |
| tree | 04c27d54368c72332960d4ed4457d03a2a8805d9 /tools/perf/util/intel-pt.c | |
| parent | perf intel-pt: Allow for a guest kernel address filter (diff) | |
| download | linux-695fc4510615f8db40ebaf7a2c011f0a594b5f77.tar.xz linux-695fc4510615f8db40ebaf7a2c011f0a594b5f77.zip | |
perf intel-pt: Adjust sample flags for VM-Exit
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>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210218095801.19576-10-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/intel-pt.c | 11 |
1 files 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) |