cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

kvm-stat.h (3404B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __PERF_KVM_STAT_H
      3#define __PERF_KVM_STAT_H
      4
      5#ifdef HAVE_KVM_STAT_SUPPORT
      6
      7#include "tool.h"
      8#include "stat.h"
      9#include "record.h"
     10
     11struct evsel;
     12struct evlist;
     13struct perf_session;
     14
     15struct event_key {
     16	#define INVALID_KEY     (~0ULL)
     17	u64 key;
     18	int info;
     19	struct exit_reasons_table *exit_reasons;
     20};
     21
     22struct kvm_event_stats {
     23	u64 time;
     24	struct stats stats;
     25};
     26
     27struct kvm_event {
     28	struct list_head hash_entry;
     29	struct rb_node rb;
     30
     31	struct event_key key;
     32
     33	struct kvm_event_stats total;
     34
     35	#define DEFAULT_VCPU_NUM 8
     36	int max_vcpu;
     37	struct kvm_event_stats *vcpu;
     38};
     39
     40typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int);
     41
     42struct kvm_event_key {
     43	const char *name;
     44	key_cmp_fun key;
     45};
     46
     47struct perf_kvm_stat;
     48
     49struct child_event_ops {
     50	void (*get_key)(struct evsel *evsel,
     51			struct perf_sample *sample,
     52			struct event_key *key);
     53	const char *name;
     54};
     55
     56struct kvm_events_ops {
     57	bool (*is_begin_event)(struct evsel *evsel,
     58			       struct perf_sample *sample,
     59			       struct event_key *key);
     60	bool (*is_end_event)(struct evsel *evsel,
     61			     struct perf_sample *sample, struct event_key *key);
     62	struct child_event_ops *child_ops;
     63	void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
     64			   char *decode);
     65	const char *name;
     66};
     67
     68struct exit_reasons_table {
     69	unsigned long exit_code;
     70	const char *reason;
     71};
     72
     73#define EVENTS_BITS		12
     74#define EVENTS_CACHE_SIZE	(1UL << EVENTS_BITS)
     75
     76struct perf_kvm_stat {
     77	struct perf_tool    tool;
     78	struct record_opts  opts;
     79	struct evlist  *evlist;
     80	struct perf_session *session;
     81
     82	const char *file_name;
     83	const char *report_event;
     84	const char *sort_key;
     85	int trace_vcpu;
     86
     87	struct exit_reasons_table *exit_reasons;
     88	const char *exit_reasons_isa;
     89
     90	struct kvm_events_ops *events_ops;
     91	key_cmp_fun compare;
     92	struct list_head kvm_events_cache[EVENTS_CACHE_SIZE];
     93
     94	u64 total_time;
     95	u64 total_count;
     96	u64 lost_events;
     97	u64 duration;
     98
     99	struct intlist *pid_list;
    100
    101	struct rb_root result;
    102
    103	int timerfd;
    104	unsigned int display_time;
    105	bool live;
    106	bool force;
    107};
    108
    109struct kvm_reg_events_ops {
    110	const char *name;
    111	struct kvm_events_ops *ops;
    112};
    113
    114void exit_event_get_key(struct evsel *evsel,
    115			struct perf_sample *sample,
    116			struct event_key *key);
    117bool exit_event_begin(struct evsel *evsel,
    118		      struct perf_sample *sample,
    119		      struct event_key *key);
    120bool exit_event_end(struct evsel *evsel,
    121		    struct perf_sample *sample,
    122		    struct event_key *key);
    123void exit_event_decode_key(struct perf_kvm_stat *kvm,
    124			   struct event_key *key,
    125			   char *decode);
    126
    127bool kvm_exit_event(struct evsel *evsel);
    128bool kvm_entry_event(struct evsel *evsel);
    129int setup_kvm_events_tp(struct perf_kvm_stat *kvm);
    130
    131#define define_exit_reasons_table(name, symbols)	\
    132	static struct exit_reasons_table name[] = {	\
    133		symbols, { -1, NULL }			\
    134	}
    135
    136/*
    137 * arch specific callbacks and data structures
    138 */
    139int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid);
    140
    141extern const char *kvm_events_tp[];
    142extern struct kvm_reg_events_ops kvm_reg_events_ops[];
    143extern const char * const kvm_skip_events[];
    144extern const char *vcpu_id_str;
    145extern const int decode_str_len;
    146extern const char *kvm_exit_reason;
    147extern const char *kvm_entry_trace;
    148extern const char *kvm_exit_trace;
    149#endif /* HAVE_KVM_STAT_SUPPORT */
    150
    151extern int kvm_add_default_arch_event(int *argc, const char **argv);
    152#endif /* __PERF_KVM_STAT_H */