Alexander Yarygin | 3be8e2a | 2014-07-03 18:29:07 +0400 | [diff] [blame] | 1 | /* |
| 2 | * Arch specific functions for perf kvm stat. |
| 3 | * |
| 4 | * Copyright 2014 IBM Corp. |
| 5 | * Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License (version 2 only) |
| 9 | * as published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
| 12 | #include "../../util/kvm-stat.h" |
Hemant Kumar | 162607e | 2016-01-28 12:03:04 +0530 | [diff] [blame] | 13 | #include <asm/sie.h> |
Alexander Yarygin | 3be8e2a | 2014-07-03 18:29:07 +0400 | [diff] [blame] | 14 | |
| 15 | define_exit_reasons_table(sie_exit_reasons, sie_intercept_code); |
| 16 | define_exit_reasons_table(sie_icpt_insn_codes, icpt_insn_codes); |
| 17 | define_exit_reasons_table(sie_sigp_order_codes, sigp_order_codes); |
| 18 | define_exit_reasons_table(sie_diagnose_codes, diagnose_codes); |
| 19 | define_exit_reasons_table(sie_icpt_prog_codes, icpt_prog_codes); |
| 20 | |
Hemant Kumar | 162607e | 2016-01-28 12:03:04 +0530 | [diff] [blame] | 21 | const char *vcpu_id_str = "id"; |
| 22 | const int decode_str_len = 40; |
| 23 | const char *kvm_exit_reason = "icptcode"; |
| 24 | const char *kvm_entry_trace = "kvm:kvm_s390_sie_enter"; |
| 25 | const char *kvm_exit_trace = "kvm:kvm_s390_sie_exit"; |
| 26 | |
Alexander Yarygin | 3be8e2a | 2014-07-03 18:29:07 +0400 | [diff] [blame] | 27 | static void event_icpt_insn_get_key(struct perf_evsel *evsel, |
| 28 | struct perf_sample *sample, |
| 29 | struct event_key *key) |
| 30 | { |
| 31 | unsigned long insn; |
| 32 | |
| 33 | insn = perf_evsel__intval(evsel, sample, "instruction"); |
| 34 | key->key = icpt_insn_decoder(insn); |
| 35 | key->exit_reasons = sie_icpt_insn_codes; |
| 36 | } |
| 37 | |
| 38 | static void event_sigp_get_key(struct perf_evsel *evsel, |
| 39 | struct perf_sample *sample, |
| 40 | struct event_key *key) |
| 41 | { |
| 42 | key->key = perf_evsel__intval(evsel, sample, "order_code"); |
| 43 | key->exit_reasons = sie_sigp_order_codes; |
| 44 | } |
| 45 | |
| 46 | static void event_diag_get_key(struct perf_evsel *evsel, |
| 47 | struct perf_sample *sample, |
| 48 | struct event_key *key) |
| 49 | { |
| 50 | key->key = perf_evsel__intval(evsel, sample, "code"); |
| 51 | key->exit_reasons = sie_diagnose_codes; |
| 52 | } |
| 53 | |
| 54 | static void event_icpt_prog_get_key(struct perf_evsel *evsel, |
| 55 | struct perf_sample *sample, |
| 56 | struct event_key *key) |
| 57 | { |
| 58 | key->key = perf_evsel__intval(evsel, sample, "code"); |
| 59 | key->exit_reasons = sie_icpt_prog_codes; |
| 60 | } |
| 61 | |
| 62 | static struct child_event_ops child_events[] = { |
| 63 | { .name = "kvm:kvm_s390_intercept_instruction", |
| 64 | .get_key = event_icpt_insn_get_key }, |
| 65 | { .name = "kvm:kvm_s390_handle_sigp", |
| 66 | .get_key = event_sigp_get_key }, |
| 67 | { .name = "kvm:kvm_s390_handle_diag", |
| 68 | .get_key = event_diag_get_key }, |
| 69 | { .name = "kvm:kvm_s390_intercept_prog", |
| 70 | .get_key = event_icpt_prog_get_key }, |
| 71 | { NULL, NULL }, |
| 72 | }; |
| 73 | |
| 74 | static struct kvm_events_ops exit_events = { |
| 75 | .is_begin_event = exit_event_begin, |
| 76 | .is_end_event = exit_event_end, |
| 77 | .child_ops = child_events, |
| 78 | .decode_key = exit_event_decode_key, |
| 79 | .name = "VM-EXIT" |
| 80 | }; |
| 81 | |
Hemant Kumar | 48deaa7 | 2016-01-28 12:03:05 +0530 | [diff] [blame] | 82 | const char *kvm_events_tp[] = { |
Alexander Yarygin | 3be8e2a | 2014-07-03 18:29:07 +0400 | [diff] [blame] | 83 | "kvm:kvm_s390_sie_enter", |
| 84 | "kvm:kvm_s390_sie_exit", |
| 85 | "kvm:kvm_s390_intercept_instruction", |
| 86 | "kvm:kvm_s390_handle_sigp", |
| 87 | "kvm:kvm_s390_handle_diag", |
| 88 | "kvm:kvm_s390_intercept_prog", |
| 89 | NULL, |
| 90 | }; |
| 91 | |
| 92 | struct kvm_reg_events_ops kvm_reg_events_ops[] = { |
| 93 | { .name = "vmexit", .ops = &exit_events }, |
| 94 | { NULL, NULL }, |
| 95 | }; |
| 96 | |
| 97 | const char * const kvm_skip_events[] = { |
| 98 | "Wait state", |
| 99 | NULL, |
| 100 | }; |
| 101 | |
| 102 | int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid) |
| 103 | { |
| 104 | if (strstr(cpuid, "IBM/S390")) { |
| 105 | kvm->exit_reasons = sie_exit_reasons; |
| 106 | kvm->exit_reasons_isa = "SIE"; |
| 107 | } else |
| 108 | return -ENOTSUP; |
| 109 | |
| 110 | return 0; |
| 111 | } |