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| author | Adrian Hunter <adrian.hunter@intel.com> | 2022-07-11 12:31:56 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-07-20 11:08:04 -0300 |
| commit | 3461b65da7d48c57080d40e6b545f1360f0b195b (patch) | |
| tree | ea4762a432508775fb7bd222ba6a816f84832751 /tools/perf/util/evlist.c | |
| parent | 797efbc523b37de29dc533a8561d34b97deb42e4 (diff) | |
| download | linux-3461b65da7d48c57080d40e6b545f1360f0b195b.tar.gz | |
perf tools: Add machine_pid and vcpu to perf_sample
When parsing a sample with a sample ID, copy machine_pid and vcpu from perf_sample_id to perf_sample. Note, machine_pid will be zero when unused, so only a non-zero value represents a guest machine. vcpu should be ignored if machine_pid is zero. Note also, machine_pid is used with events that have come from injecting a guest perf.data file, however guest events recorded on the host (i.e. using perf kvm) have the (QEMU) hypervisor process pid to identify them - refer machines__find_for_cpumode(). Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: kvm@vger.kernel.org Link: https://lore.kernel.org/r/20220711093218.10967-14-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evlist.c')
| -rw-r--r-- | tools/perf/util/evlist.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 03fbe151b0c4..64f5a8074c0c 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1507,10 +1507,22 @@ int evlist__start_workload(struct evlist *evlist) int evlist__parse_sample(struct evlist *evlist, union perf_event *event, struct perf_sample *sample) { struct evsel *evsel = evlist__event2evsel(evlist, event); + int ret; if (!evsel) return -EFAULT; - return evsel__parse_sample(evsel, event, sample); + ret = evsel__parse_sample(evsel, event, sample); + if (ret) + return ret; + if (perf_guest && sample->id) { + struct perf_sample_id *sid = evlist__id2sid(evlist, sample->id); + + if (sid) { + sample->machine_pid = sid->machine_pid; + sample->vcpu = sid->vcpu.cpu; + } + } + return 0; } int evlist__parse_sample_timestamp(struct evlist *evlist, union perf_event *event, u64 *timestamp) |