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| author |   Jan Kiszka <jan.kiszka@siemens.com> | 2014-06-12 22:10:03 -0400 |
|---|---|---|
| committer |   Jiri Olsa <jolsa@kernel.org> | 2014-06-19 18:17:54 +0200 |
| commit | 20d3cbd75ef17b96dfb4f5f1600c0278d330f5ca (patch) | |
| tree | 277e38524f6ab0d380650438d3469538bd4239db /tools/lib | |
| parent | Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/core (diff) | |
| download | linux-dev-20d3cbd75ef17b96dfb4f5f1600c0278d330f5ca.tar.xz linux-dev-20d3cbd75ef17b96dfb4f5f1600c0278d330f5ca.zip | |
tools lib traceevent: Report unknown VMX exit reasons with code
Allows to parse the result even if the KVM plugin does not yet
understand a specific exit code.
Link: http://lkml.kernel.org/r/5207446F.1090703@web.de
Acked-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/traceevent/plugin_kvm.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c index 9e0e8c61b43b..3e6122067d67 100644 --- a/tools/lib/traceevent/plugin_kvm.c +++ b/tools/lib/traceevent/plugin_kvm.c @@ -240,9 +240,8 @@ static const char *find_exit_reason(unsigned isa, int val) for (i = 0; strings[i].val >= 0; i++) if (strings[i].val == val) break; - if (strings[i].str) - return strings[i].str; - return "UNKNOWN"; + + return strings[i].str; } static int kvm_exit_handler(struct trace_seq *s, struct pevent_record *record, @@ -251,6 +250,7 @@ static int kvm_exit_handler(struct trace_seq *s, struct pevent_record *record, unsigned long long isa; unsigned long long val; unsigned long long info1 = 0, info2 = 0; + const char *reason; if (pevent_get_field_val(s, event, "exit_reason", record, &val, 1) < 0) return -1; @@ -258,7 +258,11 @@ static int kvm_exit_handler(struct trace_seq *s, struct pevent_record *record, if (pevent_get_field_val(s, event, "isa", record, &isa, 0) < 0) isa = 1; - trace_seq_printf(s, "reason %s", find_exit_reason(isa, val)); + reason = find_exit_reason(isa, val); + if (reason) + trace_seq_printf(s, "reason %s", reason); + else + trace_seq_printf(s, "reason UNKNOWN (%llu)", val); pevent_print_num_field(s, " rip 0x%lx", event, "guest_rip", record, 1); |