1*da7b1b52SShenlin Liang // SPDX-License-Identifier: GPL-2.0 2*da7b1b52SShenlin Liang /* 3*da7b1b52SShenlin Liang * Arch specific functions for perf kvm stat. 4*da7b1b52SShenlin Liang * 5*da7b1b52SShenlin Liang * Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd. 6*da7b1b52SShenlin Liang * 7*da7b1b52SShenlin Liang */ 8*da7b1b52SShenlin Liang #include <errno.h> 9*da7b1b52SShenlin Liang #include <memory.h> 10*da7b1b52SShenlin Liang #include "../../../util/evsel.h" 11*da7b1b52SShenlin Liang #include "../../../util/kvm-stat.h" 12*da7b1b52SShenlin Liang #include "riscv_exception_types.h" 13*da7b1b52SShenlin Liang #include "debug.h" 14*da7b1b52SShenlin Liang 15*da7b1b52SShenlin Liang define_exit_reasons_table(riscv_exit_reasons, kvm_riscv_exception_class); 16*da7b1b52SShenlin Liang 17*da7b1b52SShenlin Liang const char *vcpu_id_str = "id"; 18*da7b1b52SShenlin Liang const char *kvm_exit_reason = "scause"; 19*da7b1b52SShenlin Liang const char *kvm_entry_trace = "kvm:kvm_entry"; 20*da7b1b52SShenlin Liang const char *kvm_exit_trace = "kvm:kvm_exit"; 21*da7b1b52SShenlin Liang 22*da7b1b52SShenlin Liang const char *kvm_events_tp[] = { 23*da7b1b52SShenlin Liang "kvm:kvm_entry", 24*da7b1b52SShenlin Liang "kvm:kvm_exit", 25*da7b1b52SShenlin Liang NULL, 26*da7b1b52SShenlin Liang }; 27*da7b1b52SShenlin Liang 28*da7b1b52SShenlin Liang static void event_get_key(struct evsel *evsel, 29*da7b1b52SShenlin Liang struct perf_sample *sample, 30*da7b1b52SShenlin Liang struct event_key *key) 31*da7b1b52SShenlin Liang { 32*da7b1b52SShenlin Liang key->info = 0; 33*da7b1b52SShenlin Liang key->key = evsel__intval(evsel, sample, kvm_exit_reason); 34*da7b1b52SShenlin Liang key->exit_reasons = riscv_exit_reasons; 35*da7b1b52SShenlin Liang } 36*da7b1b52SShenlin Liang 37*da7b1b52SShenlin Liang static bool event_begin(struct evsel *evsel, 38*da7b1b52SShenlin Liang struct perf_sample *sample __maybe_unused, 39*da7b1b52SShenlin Liang struct event_key *key __maybe_unused) 40*da7b1b52SShenlin Liang { 41*da7b1b52SShenlin Liang return evsel__name_is(evsel, kvm_entry_trace); 42*da7b1b52SShenlin Liang } 43*da7b1b52SShenlin Liang 44*da7b1b52SShenlin Liang static bool event_end(struct evsel *evsel, 45*da7b1b52SShenlin Liang struct perf_sample *sample, 46*da7b1b52SShenlin Liang struct event_key *key) 47*da7b1b52SShenlin Liang { 48*da7b1b52SShenlin Liang if (evsel__name_is(evsel, kvm_exit_trace)) { 49*da7b1b52SShenlin Liang event_get_key(evsel, sample, key); 50*da7b1b52SShenlin Liang return true; 51*da7b1b52SShenlin Liang } 52*da7b1b52SShenlin Liang return false; 53*da7b1b52SShenlin Liang } 54*da7b1b52SShenlin Liang 55*da7b1b52SShenlin Liang static struct kvm_events_ops exit_events = { 56*da7b1b52SShenlin Liang .is_begin_event = event_begin, 57*da7b1b52SShenlin Liang .is_end_event = event_end, 58*da7b1b52SShenlin Liang .decode_key = exit_event_decode_key, 59*da7b1b52SShenlin Liang .name = "VM-EXIT" 60*da7b1b52SShenlin Liang }; 61*da7b1b52SShenlin Liang 62*da7b1b52SShenlin Liang struct kvm_reg_events_ops kvm_reg_events_ops[] = { 63*da7b1b52SShenlin Liang { 64*da7b1b52SShenlin Liang .name = "vmexit", 65*da7b1b52SShenlin Liang .ops = &exit_events, 66*da7b1b52SShenlin Liang }, 67*da7b1b52SShenlin Liang { NULL, NULL }, 68*da7b1b52SShenlin Liang }; 69*da7b1b52SShenlin Liang 70*da7b1b52SShenlin Liang const char * const kvm_skip_events[] = { 71*da7b1b52SShenlin Liang NULL, 72*da7b1b52SShenlin Liang }; 73*da7b1b52SShenlin Liang 74*da7b1b52SShenlin Liang int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid __maybe_unused) 75*da7b1b52SShenlin Liang { 76*da7b1b52SShenlin Liang kvm->exit_reasons_isa = "riscv64"; 77*da7b1b52SShenlin Liang return 0; 78*da7b1b52SShenlin Liang } 79