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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>
This commit is contained in:
Jan Kiszka 2014-06-12 22:10:03 -04:00 committed by Jiri Olsa
parent 4ba9619505
commit 20d3cbd75e
1 changed files with 8 additions and 4 deletions
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12
tools/lib/traceevent/plugin_kvm.c
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@ -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);