kvm_mmu_zap_page event was renamed to kvm_mmu_prepare_zap_page. Add new
even, but leave the old one to parse older traces. Print out "created"
field for kvm_mmu_get_page event.
Signed-off-by: Gleb Natapov <gleb@xxxxxxxxxx>
diff --git a/plugin_kvm.c b/plugin_kvm.c
index 55812ef..9b376d8 100644
--- a/plugin_kvm.c
+++ b/plugin_kvm.c
@@ -382,7 +382,7 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct pevent_record *record,
} else
trace_seq_printf(s, "WORD: %08x", role.word);
- pevent_print_num_field(s, " root %u", event,
+ pevent_print_num_field(s, " root %u ", event,
"root_count", record, 1);
if (pevent_get_field_val(s, event, "unsync", record, &val, 1) < 0)
@@ -397,6 +397,11 @@ static int kvm_mmu_get_page_handler(struct trace_seq *s, struct pevent_record *r
{
unsigned long long val;
+ if (pevent_get_field_val(s, event, "created", record, &val, 1) < 0)
+ return -1;
+
+ trace_seq_printf(s, "%s ", val ? "new" : "existing");
+
if (pevent_get_field_val(s, event, "gfn", record, &val, 1) < 0)
return -1;
@@ -433,5 +438,9 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
pevent_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page",
kvm_mmu_print_role, NULL);
+ pevent_register_event_handler(pevent, -1, "kvmmmu",
+ "kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
+ NULL);
+
return 0;
}
--
Gleb.
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