2 files changed, 16 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index bae8756a4eb1..4a57609c0b43 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -482,3 +482,17 @@ int filename__read_str(const char *filename, char **buf, size_t *sizep)
 	close(fd);
 	return err;
 }
+
+const char *get_filename_for_perf_kvm(void)
+{
+	const char *filename;
+
+	if (perf_host && !perf_guest)
+		filename = strdup("perf.data.host");
+	else if (!perf_host && perf_guest)
+		filename = strdup("perf.data.guest");
+	else
+		filename = strdup("perf.data.kvm");
+
+	return filename;
+}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 659abf30e01b..0171213d1d4d 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -321,4 +321,6 @@ void free_srcline(char *srcline);
 
 int filename__read_int(const char *filename, int *value);
 int filename__read_str(const char *filename, char **buf, size_t *sizep);
+
+const char *get_filename_for_perf_kvm(void);
 #endif /* GIT_COMPAT_UTIL_H */