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perf tools: Add machine to machines back pointer 

When dealing with guest machines, it can be necessary to get a reference
to the host machine. Add a machines pointer to struct machine to make that
possible.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220517131011.6117-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2022-05-17 16:10:06 +03:00 committed by Arnaldo Carvalho de Melo
parent 67322d13fe
commit a088031c49
2 changed files with 4 additions and 0 deletions
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2
tools/perf/util/machine.c
View File

@ -299,6 +299,8 @@ struct machine *machines__add(struct machines *machines, pid_t pid,
rb_link_node(&machine->rb_node, parent, p);
rb_insert_color_cached(&machine->rb_node, &machines->guests, leftmost);
machine->machines = machines;
return machine;
}

2
tools/perf/util/machine.h
View File

@ -18,6 +18,7 @@ struct symbol;
struct target;
struct thread;
union perf_event;
struct machines;
/* Native host kernel uses -1 as pid index in machine */
#define HOST_KERNEL_ID (-1)
@ -59,6 +60,7 @@ struct machine {
void *priv;
u64 db_id;
};
struct machines *machines;
bool trampolines_mapped;
};