[PATCH 7/8] perf kvm: Rename perf_kvm to perf_kvm_stat

From: Arnaldo Carvalho de Melo
Date: Fri Nov 23 2012 - 19:21:24 EST

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From: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>

Then let it only be used in 'perf kvm stat'.

Preparatory patch to stop trying to build parts of this tool that for
now are only supported on x86.

Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Dong Hao <haodong@xxxxxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Josh Boyer <jwboyer@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Runzhen Wang <runzhen@xxxxxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: linux-arch@xxxxxxxxxxxxxxx
Cc: x86@xxxxxxxxxx
Link: http://lkml.kernel.org/r/50A488DD.6090106@xxxxxxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-kvm.c | 111 +++++++++++++++++++++++++---------------------
1 file changed, 60 insertions(+), 51 deletions(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index e013bdb..9fa45fa 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -58,7 +58,7 @@ struct kvm_event_key {
};

-struct perf_kvm;
+struct perf_kvm_stat;

struct kvm_events_ops {
bool (*is_begin_event)(struct perf_evsel *evsel,
@@ -66,7 +66,7 @@ struct kvm_events_ops {
struct event_key *key);
bool (*is_end_event)(struct perf_evsel *evsel,
struct perf_sample *sample, struct event_key *key);
- void (*decode_key)(struct perf_kvm *kvm, struct event_key *key,
+ void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
char decode[20]);
const char *name;
};
@@ -79,7 +79,7 @@ struct exit_reasons_table {
#define EVENTS_BITS 12
#define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS)

-struct perf_kvm {
+struct perf_kvm_stat {
struct perf_tool tool;
struct perf_session *session;

@@ -146,7 +146,7 @@ static struct exit_reasons_table svm_exit_reasons[] = {
SVM_EXIT_REASONS
};

-static const char *get_exit_reason(struct perf_kvm *kvm, u64 exit_code)
+static const char *get_exit_reason(struct perf_kvm_stat *kvm, u64 exit_code)
{
int i = kvm->exit_reasons_size;
struct exit_reasons_table *tbl = kvm->exit_reasons;
@@ -162,7 +162,7 @@ static const char *get_exit_reason(struct perf_kvm *kvm, u64 exit_code)
return "UNKNOWN";
}

-static void exit_event_decode_key(struct perf_kvm *kvm,
+static void exit_event_decode_key(struct perf_kvm_stat *kvm,
struct event_key *key,
char decode[20])
{
@@ -228,7 +228,7 @@ static bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample,
return false;
}

-static void mmio_event_decode_key(struct perf_kvm *kvm __maybe_unused,
+static void mmio_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused,
struct event_key *key,
char decode[20])
{
@@ -271,7 +271,7 @@ static bool ioport_event_end(struct perf_evsel *evsel,
return kvm_entry_event(evsel);
}

-static void ioport_event_decode_key(struct perf_kvm *kvm __maybe_unused,
+static void ioport_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused,
struct event_key *key,
char decode[20])
{
@@ -286,7 +286,7 @@ static struct kvm_events_ops ioport_events = {
.name = "IO Port Access"
};

-static bool register_kvm_events_ops(struct perf_kvm *kvm)
+static bool register_kvm_events_ops(struct perf_kvm_stat *kvm)
{
bool ret = true;

@@ -311,7 +311,7 @@ struct vcpu_event_record {
};

-static void init_kvm_event_record(struct perf_kvm *kvm)
+static void init_kvm_event_record(struct perf_kvm_stat *kvm)
{
int i;

@@ -360,7 +360,7 @@ static struct kvm_event *kvm_alloc_init_event(struct event_key *key)
return event;
}

-static struct kvm_event *find_create_kvm_event(struct perf_kvm *kvm,
+static struct kvm_event *find_create_kvm_event(struct perf_kvm_stat *kvm,
struct event_key *key)
{
struct kvm_event *event;
@@ -381,7 +381,7 @@ static struct kvm_event *find_create_kvm_event(struct perf_kvm *kvm,
return event;
}

-static bool handle_begin_event(struct perf_kvm *kvm,
+static bool handle_begin_event(struct perf_kvm_stat *kvm,
struct vcpu_event_record *vcpu_record,
struct event_key *key, u64 timestamp)
{
@@ -425,7 +425,7 @@ static bool update_kvm_event(struct kvm_event *event, int vcpu_id,
return true;
}

-static bool handle_end_event(struct perf_kvm *kvm,
+static bool handle_end_event(struct perf_kvm_stat *kvm,
struct vcpu_event_record *vcpu_record,
struct event_key *key,
u64 timestamp)
@@ -486,7 +486,7 @@ struct vcpu_event_record *per_vcpu_record(struct thread *thread,
return thread->priv;
}

-static bool handle_kvm_event(struct perf_kvm *kvm,
+static bool handle_kvm_event(struct perf_kvm_stat *kvm,
struct thread *thread,
struct perf_evsel *evsel,
struct perf_sample *sample)
@@ -541,7 +541,7 @@ static struct kvm_event_key keys[] = {
{ NULL, NULL }
};

-static bool select_key(struct perf_kvm *kvm)
+static bool select_key(struct perf_kvm_stat *kvm)
{
int i;

@@ -577,7 +577,8 @@ static void insert_to_result(struct rb_root *result, struct kvm_event *event,
rb_insert_color(&event->rb, result);
}

-static void update_total_count(struct perf_kvm *kvm, struct kvm_event *event)
+static void
+update_total_count(struct perf_kvm_stat *kvm, struct kvm_event *event)
{
int vcpu = kvm->trace_vcpu;

@@ -590,7 +591,7 @@ static bool event_is_valid(struct kvm_event *event, int vcpu)
return !!get_event_count(event, vcpu);
}

-static void sort_result(struct perf_kvm *kvm)
+static void sort_result(struct perf_kvm_stat *kvm)
{
unsigned int i;
int vcpu = kvm->trace_vcpu;
@@ -627,7 +628,7 @@ static void print_vcpu_info(int vcpu)
pr_info("VCPU %d:\n\n", vcpu);
}

-static void print_result(struct perf_kvm *kvm)
+static void print_result(struct perf_kvm_stat *kvm)
{
char decode[20];
struct kvm_event *event;
@@ -670,7 +671,8 @@ static int process_sample_event(struct perf_tool *tool,
struct machine *machine)
{
struct thread *thread = machine__findnew_thread(machine, sample->tid);
- struct perf_kvm *kvm = container_of(tool, struct perf_kvm, tool);
+ struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat,
+ tool);

if (thread == NULL) {
pr_debug("problem processing %d event, skipping it.\n",
@@ -701,7 +703,7 @@ static int get_cpu_isa(struct perf_session *session)
return isa;
}

-static int read_events(struct perf_kvm *kvm)
+static int read_events(struct perf_kvm_stat *kvm)
{
int ret;

@@ -750,7 +752,7 @@ static bool verify_vcpu(int vcpu)
return true;
}

-static int kvm_events_report_vcpu(struct perf_kvm *kvm)
+static int kvm_events_report_vcpu(struct perf_kvm_stat *kvm)
{
int ret = -EINVAL;
int vcpu = kvm->trace_vcpu;
@@ -798,7 +800,8 @@ static const char * const record_args[] = {
_p; \
})

-static int kvm_events_record(struct perf_kvm *kvm, int argc, const char **argv)
+static int
+kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv)
{
unsigned int rec_argc, i, j;
const char **rec_argv;
@@ -821,7 +824,8 @@ static int kvm_events_record(struct perf_kvm *kvm, int argc, const char **argv)
return cmd_record(i, rec_argv, NULL);
}

-static int kvm_events_report(struct perf_kvm *kvm, int argc, const char **argv)
+static int
+kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv)
{
const struct option kvm_events_report_options[] = {
OPT_STRING(0, "event", &kvm->report_event, "report event",
@@ -864,24 +868,36 @@ static void print_kvm_stat_usage(void)
printf("\nOtherwise, it is the alias of 'perf stat':\n");
}

-static int kvm_cmd_stat(struct perf_kvm *kvm, int argc, const char **argv)
+static int kvm_cmd_stat(const char *file_name, int argc, const char **argv)
{
+ struct perf_kvm_stat kvm = {
+ .file_name = file_name,
+
+ .trace_vcpu = -1,
+ .report_event = "vmexit",
+ .sort_key = "sample",
+
+ .exit_reasons = svm_exit_reasons,
+ .exit_reasons_size = ARRAY_SIZE(svm_exit_reasons),
+ .exit_reasons_isa = "SVM",
+ };
+
if (argc == 1) {
print_kvm_stat_usage();
goto perf_stat;
}

if (!strncmp(argv[1], "rec", 3))
- return kvm_events_record(kvm, argc - 1, argv + 1);
+ return kvm_events_record(&kvm, argc - 1, argv + 1);

if (!strncmp(argv[1], "rep", 3))
- return kvm_events_report(kvm, argc - 1 , argv + 1);
+ return kvm_events_report(&kvm, argc - 1 , argv + 1);

perf_stat:
return cmd_stat(argc, argv, NULL);
}

-static int __cmd_record(struct perf_kvm *kvm, int argc, const char **argv)
+static int __cmd_record(const char *file_name, int argc, const char **argv)
{
int rec_argc, i = 0, j;
const char **rec_argv;
@@ -890,7 +906,7 @@ static int __cmd_record(struct perf_kvm *kvm, int argc, const char **argv)
rec_argv = calloc(rec_argc + 1, sizeof(char *));
rec_argv[i++] = strdup("record");
rec_argv[i++] = strdup("-o");
- rec_argv[i++] = strdup(kvm->file_name);
+ rec_argv[i++] = strdup(file_name);
for (j = 1; j < argc; j++, i++)
rec_argv[i] = argv[j];

@@ -899,7 +915,7 @@ static int __cmd_record(struct perf_kvm *kvm, int argc, const char **argv)
return cmd_record(i, rec_argv, NULL);
}

-static int __cmd_report(struct perf_kvm *kvm, int argc, const char **argv)
+static int __cmd_report(const char *file_name, int argc, const char **argv)
{
int rec_argc, i = 0, j;
const char **rec_argv;
@@ -908,7 +924,7 @@ static int __cmd_report(struct perf_kvm *kvm, int argc, const char **argv)
rec_argv = calloc(rec_argc + 1, sizeof(char *));
rec_argv[i++] = strdup("report");
rec_argv[i++] = strdup("-i");
- rec_argv[i++] = strdup(kvm->file_name);
+ rec_argv[i++] = strdup(file_name);
for (j = 1; j < argc; j++, i++)
rec_argv[i] = argv[j];

@@ -917,7 +933,8 @@ static int __cmd_report(struct perf_kvm *kvm, int argc, const char **argv)
return cmd_report(i, rec_argv, NULL);
}

-static int __cmd_buildid_list(struct perf_kvm *kvm, int argc, const char **argv)
+static int
+__cmd_buildid_list(const char *file_name, int argc, const char **argv)
{
int rec_argc, i = 0, j;
const char **rec_argv;
@@ -926,7 +943,7 @@ static int __cmd_buildid_list(struct perf_kvm *kvm, int argc, const char **argv)
rec_argv = calloc(rec_argc + 1, sizeof(char *));
rec_argv[i++] = strdup("buildid-list");
rec_argv[i++] = strdup("-i");
- rec_argv[i++] = strdup(kvm->file_name);
+ rec_argv[i++] = strdup(file_name);
for (j = 1; j < argc; j++, i++)
rec_argv[i] = argv[j];

@@ -937,20 +954,12 @@ static int __cmd_buildid_list(struct perf_kvm *kvm, int argc, const char **argv)

int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused)
{
- struct perf_kvm kvm = {
- .trace_vcpu = -1,
- .report_event = "vmexit",
- .sort_key = "sample",
-
- .exit_reasons = svm_exit_reasons,
- .exit_reasons_size = ARRAY_SIZE(svm_exit_reasons),
- .exit_reasons_isa = "SVM",
- };
+ const char *file_name;

const struct option kvm_options[] = {
- OPT_STRING('i', "input", &kvm.file_name, "file",
+ OPT_STRING('i', "input", &file_name, "file",
"Input file name"),
- OPT_STRING('o', "output", &kvm.file_name, "file",
+ OPT_STRING('o', "output", &file_name, "file",
"Output file name"),
OPT_BOOLEAN(0, "guest", &perf_guest,
"Collect guest os data"),
@@ -985,32 +994,32 @@ int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused)
if (!perf_host)
perf_guest = 1;

- if (!kvm.file_name) {
+ if (!file_name) {
if (perf_host && !perf_guest)
- kvm.file_name = strdup("perf.data.host");
+ file_name = strdup("perf.data.host");
else if (!perf_host && perf_guest)
- kvm.file_name = strdup("perf.data.guest");
+ file_name = strdup("perf.data.guest");
else
- kvm.file_name = strdup("perf.data.kvm");
+ file_name = strdup("perf.data.kvm");

- if (!kvm.file_name) {
+ if (!file_name) {
pr_err("Failed to allocate memory for filename\n");
return -ENOMEM;
}
}

if (!strncmp(argv[0], "rec", 3))
- return __cmd_record(&kvm, argc, argv);
+ return __cmd_record(file_name, argc, argv);
else if (!strncmp(argv[0], "rep", 3))
- return __cmd_report(&kvm, argc, argv);
+ return __cmd_report(file_name, argc, argv);
else if (!strncmp(argv[0], "diff", 4))
return cmd_diff(argc, argv, NULL);
else if (!strncmp(argv[0], "top", 3))
return cmd_top(argc, argv, NULL);
else if (!strncmp(argv[0], "buildid-list", 12))
- return __cmd_buildid_list(&kvm, argc, argv);
+ return __cmd_buildid_list(file_name, argc, argv);
else if (!strncmp(argv[0], "stat", 4))
- return kvm_cmd_stat(&kvm, argc, argv);
+ return kvm_cmd_stat(file_name, argc, argv);
else
usage_with_options(kvm_usage, kvm_options);

--
1.7.9.2.358.g22243

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Next message: Arnaldo Carvalho de Melo: "[PATCH 8/8] perf kvm: Fix building perf kvm on non x86 arches"
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