48deaa74fc
This patch removes the "const" qualifier from kvm_events_tp declaration to account for the fact that some architectures may need to update this variable dynamically. For instance, powerpc will need to update this variable dynamically depending on the machine type. Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: Alexander Yarygin <yarygin@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Scott Wood <scottwood@freescale.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/1453962787-15376-2-git-send-email-hemant@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License (version 2 only)
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* as published by the Free Software Foundation.
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*/
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#include "../../util/kvm-stat.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 perf_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 = perf_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 perf_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 = perf_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 perf_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 = perf_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 perf_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 = perf_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/S390")) {
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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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