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f57a64142c
perf kvm tool defines its own cached list which is managed with RB tree, histograms also provide RB tree to manage data entries. Since now we have introduced histograms in the tool, it's not necessary to use the self defined list and we can directly use histograms list to manage KVM events. This patch changes to use histograms list to track KVM events, and it invokes the common function hists__output_resort_cb() to sort result, this also give us flexibility to extend more sorting key words easily. After histograms list supported, the cached list is redundant so remove the relevant code for it. Committer notes: kvm_hists__reinit() is only used by functions enclosed in: #if defined(HAVE_KVM_STAT_SUPPORT) && defined(HAVE_LIBTRACEEVENT) So do it with this new function as well. Signed-off-by: Leo Yan <leo.yan@linaro.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230315145112.186603-2-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
158 lines
3.4 KiB
C
158 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_KVM_STAT_H
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#define __PERF_KVM_STAT_H
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#ifdef HAVE_KVM_STAT_SUPPORT
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#include "tool.h"
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#include "sort.h"
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#include "stat.h"
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#include "symbol.h"
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#include "record.h"
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#define KVM_EVENT_NAME_LEN 40
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struct evsel;
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struct evlist;
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struct perf_session;
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struct event_key {
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#define INVALID_KEY (~0ULL)
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u64 key;
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int info;
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struct exit_reasons_table *exit_reasons;
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};
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struct kvm_info {
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char name[KVM_EVENT_NAME_LEN];
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};
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struct kvm_event_stats {
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u64 time;
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struct stats stats;
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};
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struct perf_kvm_stat;
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struct kvm_event {
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struct list_head hash_entry;
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struct perf_kvm_stat *perf_kvm;
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struct event_key key;
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struct kvm_event_stats total;
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#define DEFAULT_VCPU_NUM 8
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int max_vcpu;
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struct kvm_event_stats *vcpu;
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struct hist_entry he;
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};
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typedef int64_t (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int);
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struct kvm_event_key {
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const char *name;
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key_cmp_fun key;
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};
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struct child_event_ops {
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void (*get_key)(struct evsel *evsel,
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struct perf_sample *sample,
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struct event_key *key);
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const char *name;
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};
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struct kvm_events_ops {
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bool (*is_begin_event)(struct evsel *evsel,
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struct perf_sample *sample,
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struct event_key *key);
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bool (*is_end_event)(struct evsel *evsel,
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struct perf_sample *sample, struct event_key *key);
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struct child_event_ops *child_ops;
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void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
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char *decode);
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const char *name;
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};
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struct exit_reasons_table {
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unsigned long exit_code;
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const char *reason;
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};
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struct perf_kvm_stat {
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struct perf_tool tool;
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struct record_opts opts;
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struct evlist *evlist;
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struct perf_session *session;
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const char *file_name;
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const char *report_event;
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const char *sort_key;
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int trace_vcpu;
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/* Used when process events */
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struct addr_location al;
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struct exit_reasons_table *exit_reasons;
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const char *exit_reasons_isa;
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struct kvm_events_ops *events_ops;
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key_cmp_fun compare;
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u64 total_time;
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u64 total_count;
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u64 lost_events;
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u64 duration;
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struct intlist *pid_list;
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int timerfd;
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unsigned int display_time;
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bool live;
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bool force;
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};
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struct kvm_reg_events_ops {
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const char *name;
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struct kvm_events_ops *ops;
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};
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void exit_event_get_key(struct evsel *evsel,
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struct perf_sample *sample,
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struct event_key *key);
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bool exit_event_begin(struct evsel *evsel,
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struct perf_sample *sample,
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struct event_key *key);
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bool exit_event_end(struct evsel *evsel,
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struct perf_sample *sample,
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struct event_key *key);
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void exit_event_decode_key(struct perf_kvm_stat *kvm,
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struct event_key *key,
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char *decode);
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bool kvm_exit_event(struct evsel *evsel);
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bool kvm_entry_event(struct evsel *evsel);
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int setup_kvm_events_tp(struct perf_kvm_stat *kvm);
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#define define_exit_reasons_table(name, symbols) \
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static struct exit_reasons_table name[] = { \
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symbols, { -1, NULL } \
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}
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/*
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* arch specific callbacks and data structures
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*/
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int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid);
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extern const char *kvm_events_tp[];
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extern struct kvm_reg_events_ops kvm_reg_events_ops[];
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extern const char * const kvm_skip_events[];
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extern const char *vcpu_id_str;
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extern const char *kvm_exit_reason;
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extern const char *kvm_entry_trace;
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extern const char *kvm_exit_trace;
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#endif /* HAVE_KVM_STAT_SUPPORT */
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extern int kvm_add_default_arch_event(int *argc, const char **argv);
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#endif /* __PERF_KVM_STAT_H */
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