// SPDX-License-Identifier: GPL-2.0-only
|
/*
|
* Arch specific functions for perf kvm stat.
|
*
|
* Copyright 2014 IBM Corp.
|
* Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com>
|
*/
|
|
#include <errno.h>
|
#include <string.h>
|
#include "../../util/kvm-stat.h"
|
#include "../../util/evsel.h"
|
#include <asm/sie.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);
|
|
const char *vcpu_id_str = "id";
|
const int decode_str_len = 40;
|
const char *kvm_exit_reason = "icptcode";
|
const char *kvm_entry_trace = "kvm:kvm_s390_sie_enter";
|
const char *kvm_exit_trace = "kvm:kvm_s390_sie_exit";
|
|
static void event_icpt_insn_get_key(struct evsel *evsel,
|
struct perf_sample *sample,
|
struct event_key *key)
|
{
|
unsigned long insn;
|
|
insn = 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 evsel *evsel,
|
struct perf_sample *sample,
|
struct event_key *key)
|
{
|
key->key = evsel__intval(evsel, sample, "order_code");
|
key->exit_reasons = sie_sigp_order_codes;
|
}
|
|
static void event_diag_get_key(struct evsel *evsel,
|
struct perf_sample *sample,
|
struct event_key *key)
|
{
|
key->key = evsel__intval(evsel, sample, "code");
|
key->exit_reasons = sie_diagnose_codes;
|
}
|
|
static void event_icpt_prog_get_key(struct evsel *evsel,
|
struct perf_sample *sample,
|
struct event_key *key)
|
{
|
key->key = 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 *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")) {
|
kvm->exit_reasons = sie_exit_reasons;
|
kvm->exit_reasons_isa = "SIE";
|
} else
|
return -ENOTSUP;
|
|
return 0;
|
}
|
