Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / tools / perf / arch / s390 / util / kvm-stat.c

diff --git a/kernel/tools/perf/arch/s390/util/kvm-stat.c b/kernel/tools/perf/arch/s390/util/kvm-stat.c
new file mode 100644 (file)
index 0000000..a5dbc07
--- /dev/null
+++ b/kernel/tools/perf/arch/s390/util/kvm-stat.c
@@ -0,0 +1,105 @@
+/*
+ * Arch specific functions for perf kvm stat.
+ *
+ * Copyright 2014 IBM Corp.
+ * Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ */
+
+#include "../../util/kvm-stat.h"
+#include <asm/kvm_perf.h>
+
+define_exit_reasons_table(sie_exit_reasons, sie_intercept_code);
+define_exit_reasons_table(sie_icpt_insn_codes, icpt_insn_codes);
+define_exit_reasons_table(sie_sigp_order_codes, sigp_order_codes);
+define_exit_reasons_table(sie_diagnose_codes, diagnose_codes);
+define_exit_reasons_table(sie_icpt_prog_codes, icpt_prog_codes);
+
+static void event_icpt_insn_get_key(struct perf_evsel *evsel,
+                                   struct perf_sample *sample,
+                                   struct event_key *key)
+{
+       unsigned long insn;
+
+       insn = perf_evsel__intval(evsel, sample, "instruction");
+       key->key = icpt_insn_decoder(insn);
+       key->exit_reasons = sie_icpt_insn_codes;
+}
+
+static void event_sigp_get_key(struct perf_evsel *evsel,
+                              struct perf_sample *sample,
+                              struct event_key *key)
+{
+       key->key = perf_evsel__intval(evsel, sample, "order_code");
+       key->exit_reasons = sie_sigp_order_codes;
+}
+
+static void event_diag_get_key(struct perf_evsel *evsel,
+                              struct perf_sample *sample,
+                              struct event_key *key)
+{
+       key->key = perf_evsel__intval(evsel, sample, "code");
+       key->exit_reasons = sie_diagnose_codes;
+}
+
+static void event_icpt_prog_get_key(struct perf_evsel *evsel,
+                                   struct perf_sample *sample,
+                                   struct event_key *key)
+{
+       key->key = perf_evsel__intval(evsel, sample, "code");
+       key->exit_reasons = sie_icpt_prog_codes;
+}
+
+static struct child_event_ops child_events[] = {
+       { .name = "kvm:kvm_s390_intercept_instruction",
+         .get_key = event_icpt_insn_get_key },
+       { .name = "kvm:kvm_s390_handle_sigp",
+         .get_key = event_sigp_get_key },
+       { .name = "kvm:kvm_s390_handle_diag",
+         .get_key = event_diag_get_key },
+       { .name = "kvm:kvm_s390_intercept_prog",
+         .get_key = event_icpt_prog_get_key },
+       { NULL, NULL },
+};
+
+static struct kvm_events_ops exit_events = {
+       .is_begin_event = exit_event_begin,
+       .is_end_event = exit_event_end,
+       .child_ops = child_events,
+       .decode_key = exit_event_decode_key,
+       .name = "VM-EXIT"
+};
+
+const char * const kvm_events_tp[] = {
+       "kvm:kvm_s390_sie_enter",
+       "kvm:kvm_s390_sie_exit",
+       "kvm:kvm_s390_intercept_instruction",
+       "kvm:kvm_s390_handle_sigp",
+       "kvm:kvm_s390_handle_diag",
+       "kvm:kvm_s390_intercept_prog",
+       NULL,
+};
+
+struct kvm_reg_events_ops kvm_reg_events_ops[] = {
+       { .name = "vmexit", .ops = &exit_events },
+       { NULL, NULL },
+};
+
+const char * const kvm_skip_events[] = {
+       "Wait state",
+       NULL,
+};
+
+int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid)
+{
+       if (strstr(cpuid, "IBM/S390")) {
+               kvm->exit_reasons = sie_exit_reasons;
+               kvm->exit_reasons_isa = "SIE";
+       } else
+               return -ENOTSUP;
+
+       return 0;
+}