88 lines
1.8 KiB
C
88 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Arch specific functions for perf kvm stat.
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*
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* Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd.
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*
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*/
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#include <errno.h>
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#include <memory.h>
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#include "../evsel.h"
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#include "../kvm-stat.h"
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#include "riscv_trap_types.h"
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#include "debug.h"
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define_exit_reasons_table(riscv_exit_reasons, kvm_riscv_trap_class);
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static const char * const __kvm_events_tp[] = {
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"kvm:kvm_entry",
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"kvm:kvm_exit",
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NULL,
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};
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static void event_get_key(struct perf_sample *sample,
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struct event_key *key)
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{
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int xlen = 64; // TODO: 32-bit support.
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key->info = 0;
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key->key = perf_sample__intval(sample, kvm_exit_reason(EM_RISCV)) & ~CAUSE_IRQ_FLAG(xlen);
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key->exit_reasons = riscv_exit_reasons;
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}
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static bool event_begin(struct perf_sample *sample,
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struct event_key *key __maybe_unused)
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{
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return evsel__name_is(sample->evsel, kvm_entry_trace(EM_RISCV));
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}
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static bool event_end(struct perf_sample *sample,
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struct event_key *key)
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{
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if (evsel__name_is(sample->evsel, kvm_exit_trace(EM_RISCV))) {
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event_get_key(sample, key);
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return true;
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}
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return false;
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}
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static const struct kvm_events_ops exit_events = {
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.is_begin_event = event_begin,
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.is_end_event = event_end,
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.decode_key = exit_event_decode_key,
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.name = "VM-EXIT"
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};
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static const struct kvm_reg_events_ops __kvm_reg_events_ops[] = {
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{
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.name = "vmexit",
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.ops = &exit_events,
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},
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{ NULL, NULL },
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};
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static const char * const __kvm_skip_events[] = {
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NULL,
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};
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int __cpu_isa_init_riscv(struct perf_kvm_stat *kvm)
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{
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kvm->exit_reasons_isa = "riscv64";
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return 0;
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}
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const char * const *__kvm_events_tp_riscv(void)
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{
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return __kvm_events_tp;
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}
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const struct kvm_reg_events_ops *__kvm_reg_events_ops_riscv(void)
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{
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return __kvm_reg_events_ops;
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}
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const char * const *__kvm_skip_events_riscv(void)
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{
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return __kvm_skip_events;
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}
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