112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Arch specific functions for perf kvm stat.
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*
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* Copyright 2014 IBM Corp.
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* Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com>
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*/
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#include <errno.h>
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#include <string.h>
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#include "../../util/kvm-stat.h"
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#include "../../util/evsel.h"
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#include <asm/sie.h>
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define_exit_reasons_table(sie_exit_reasons, sie_intercept_code);
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define_exit_reasons_table(sie_icpt_insn_codes, icpt_insn_codes);
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define_exit_reasons_table(sie_sigp_order_codes, sigp_order_codes);
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define_exit_reasons_table(sie_diagnose_codes, diagnose_codes);
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define_exit_reasons_table(sie_icpt_prog_codes, icpt_prog_codes);
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const char *vcpu_id_str = "id";
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const int decode_str_len = 40;
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const char *kvm_exit_reason = "icptcode";
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const char *kvm_entry_trace = "kvm:kvm_s390_sie_enter";
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const char *kvm_exit_trace = "kvm:kvm_s390_sie_exit";
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static void event_icpt_insn_get_key(struct evsel *evsel,
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struct perf_sample *sample,
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struct event_key *key)
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{
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unsigned long insn;
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insn = evsel__intval(evsel, sample, "instruction");
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key->key = icpt_insn_decoder(insn);
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key->exit_reasons = sie_icpt_insn_codes;
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}
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static void event_sigp_get_key(struct evsel *evsel,
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struct perf_sample *sample,
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struct event_key *key)
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{
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key->key = evsel__intval(evsel, sample, "order_code");
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key->exit_reasons = sie_sigp_order_codes;
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}
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static void event_diag_get_key(struct evsel *evsel,
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struct perf_sample *sample,
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struct event_key *key)
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{
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key->key = evsel__intval(evsel, sample, "code");
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key->exit_reasons = sie_diagnose_codes;
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}
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static void event_icpt_prog_get_key(struct evsel *evsel,
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struct perf_sample *sample,
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struct event_key *key)
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{
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key->key = evsel__intval(evsel, sample, "code");
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key->exit_reasons = sie_icpt_prog_codes;
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}
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static struct child_event_ops child_events[] = {
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{ .name = "kvm:kvm_s390_intercept_instruction",
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.get_key = event_icpt_insn_get_key },
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{ .name = "kvm:kvm_s390_handle_sigp",
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.get_key = event_sigp_get_key },
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{ .name = "kvm:kvm_s390_handle_diag",
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.get_key = event_diag_get_key },
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{ .name = "kvm:kvm_s390_intercept_prog",
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.get_key = event_icpt_prog_get_key },
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{ NULL, NULL },
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};
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static struct kvm_events_ops exit_events = {
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.is_begin_event = exit_event_begin,
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.is_end_event = exit_event_end,
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.child_ops = child_events,
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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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const char *kvm_events_tp[] = {
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"kvm:kvm_s390_sie_enter",
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"kvm:kvm_s390_sie_exit",
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"kvm:kvm_s390_intercept_instruction",
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"kvm:kvm_s390_handle_sigp",
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"kvm:kvm_s390_handle_diag",
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"kvm:kvm_s390_intercept_prog",
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NULL,
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};
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struct kvm_reg_events_ops kvm_reg_events_ops[] = {
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{ .name = "vmexit", .ops = &exit_events },
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{ NULL, NULL },
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};
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const char * const kvm_skip_events[] = {
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"Wait state",
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NULL,
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};
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int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid)
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{
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if (strstr(cpuid, "IBM")) {
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kvm->exit_reasons = sie_exit_reasons;
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kvm->exit_reasons_isa = "SIE";
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} else
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return -ENOTSUP;
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return 0;
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}
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