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>
u64 code_page_size;
u64 cgroup;
u32 flags;
+ u32 machine_pid;
+ u32 vcpu;
u16 insn_len;
u8 cpumode;
u16 misc;
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)
data->misc = event->header.misc;
data->id = -1ULL;
data->data_src = PERF_MEM_DATA_SRC_NONE;
+ data->vcpu = -1;
if (event->header.type != PERF_RECORD_SAMPLE) {
if (!evsel->core.attr.sample_id_all)