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// SPDX-License-Identifier: GPL-2.0
#include <errno.h>
#include <memory.h>
#include "../debug.h"
#include "../evsel.h"
#include "../kvm-stat.h"
#include "arm64_exception_types.h"
define_exit_reasons_table(arm64_exit_reasons, kvm_arm_exception_type);
define_exit_reasons_table(arm64_trap_exit_reasons, kvm_arm_exception_class);
static const char *kvm_trap_exit_reason = "esr_ec";
static const char * const __kvm_events_tp[] = {
"kvm:kvm_entry",
"kvm:kvm_exit",
NULL,
};
static void event_get_key(struct evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
key->info = 0;
key->key = evsel__intval(evsel, sample, kvm_exit_reason(EM_AARCH64));
key->exit_reasons = arm64_exit_reasons;
/*
* TRAP exceptions carry exception class info in esr_ec field
* and, hence, we need to use a different exit_reasons table to
* properly decode event's est_ec.
*/
if (key->key == ARM_EXCEPTION_TRAP) {
key->key = evsel__intval(evsel, sample, kvm_trap_exit_reason);
key->exit_reasons = arm64_trap_exit_reasons;
}
}
static bool event_begin(struct evsel *evsel,
struct perf_sample *sample __maybe_unused,
struct event_key *key __maybe_unused)
{
return evsel__name_is(evsel, kvm_entry_trace(EM_AARCH64));
}
static bool event_end(struct evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
if (evsel__name_is(evsel, kvm_exit_trace(EM_AARCH64))) {
event_get_key(evsel, sample, key);
return true;
}
return false;
}
static const struct kvm_events_ops exit_events = {
.is_begin_event = event_begin,
.is_end_event = event_end,
.decode_key = exit_event_decode_key,
.name = "VM-EXIT"
};
static const struct kvm_reg_events_ops __kvm_reg_events_ops[] = {
{
.name = "vmexit",
.ops = &exit_events,
},
{ NULL, NULL },
};
static const char * const __kvm_skip_events[] = {
NULL,
};
int __cpu_isa_init_arm64(struct perf_kvm_stat *kvm)
{
kvm->exit_reasons_isa = "arm64";
return 0;
}
const char * const *__kvm_events_tp_arm64(void)
{
return __kvm_events_tp;
}
const struct kvm_reg_events_ops *__kvm_reg_events_ops_arm64(void)
{
return __kvm_reg_events_ops;
}
const char * const *__kvm_skip_events_arm64(void)
{
return __kvm_skip_events;
}
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