1 files changed, 12 insertions, 6 deletions

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 75588920fccc..9183913a6174 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1219,11 +1219,17 @@ static int __parse_events_add_pmu(struct parse_events_state *parse_state,
         struct perf_pmu_info info;
         struct perf_pmu *pmu;
         struct perf_evsel *evsel;
+        struct parse_events_error *err = parse_state->error;
         LIST_HEAD(config_terms);
 
         pmu = perf_pmu__find(name);
-        if (!pmu)
+        if (!pmu) {
+                if (asprintf(&err->str,
+                                "Cannot find PMU `%s'. Missing kernel support?",
+                                name) < 0)
+                        err->str = NULL;
                 return -EINVAL;
+        }
 
         if (pmu->default_config) {
                 memcpy(&attr, pmu->default_config,
@@ -1733,8 +1739,8 @@ static int get_term_width(void)
         return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
 }
 
-static void parse_events_print_error(struct parse_events_error *err,
-                                     const char *event)
+void parse_events_print_error(struct parse_events_error *err,
+                              const char *event)
 {
         const char *str = "invalid or unsupported event: ";
         char _buf[MAX_WIDTH];
@@ -1789,8 +1795,6 @@ static void parse_events_print_error(struct parse_events_error *err,
                 zfree(&err->str);
                 zfree(&err->help);
         }
-
-        fprintf(stderr, "Run 'perf list' for a list of valid events\n");
 }
 
 #undef MAX_WIDTH
@@ -1802,8 +1806,10 @@ int parse_events_option(const struct option *opt, const char *str,
         struct parse_events_error err = { .idx = 0, };
         int ret = parse_events(evlist, str, &err);
 
-        if (ret)
+        if (ret) {
                 parse_events_print_error(&err, str);
+                fprintf(stderr, "Run 'perf list' for a list of valid events\n");
+        }
 
         return ret;
 }