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3be8e2a0 AY |
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" | |
162607ea | 13 | #include <asm/sie.h> |
3be8e2a0 AY |
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 | ||
162607ea HK |
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 | ||
3be8e2a0 AY |
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 | ||
48deaa74 | 82 | const char *kvm_events_tp[] = { |
3be8e2a0 AY |
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 | } |