1 /****************************************************************************** 2 * xenoprof.h 3 * 4 * Interface for enabling system wide profiling based on hardware performance 5 * counters 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to 9 * deal in the Software without restriction, including without limitation the 10 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 11 * sell copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 23 * DEALINGS IN THE SOFTWARE. 24 * 25 * Copyright (C) 2005 Hewlett-Packard Co. 26 * Written by Aravind Menon & Jose Renato Santos 27 */ 28 29 #ifndef __XEN_PUBLIC_XENOPROF_H__ 30 #define __XEN_PUBLIC_XENOPROF_H__ 31 32 #include "xen.h" 33 34 /* 35 * Commands to HYPERVISOR_xenoprof_op(). 36 */ 37 #define XENOPROF_init 0 38 #define XENOPROF_reset_active_list 1 39 #define XENOPROF_reset_passive_list 2 40 #define XENOPROF_set_active 3 41 #define XENOPROF_set_passive 4 42 #define XENOPROF_reserve_counters 5 43 #define XENOPROF_counter 6 44 #define XENOPROF_setup_events 7 45 #define XENOPROF_enable_virq 8 46 #define XENOPROF_start 9 47 #define XENOPROF_stop 10 48 #define XENOPROF_disable_virq 11 49 #define XENOPROF_release_counters 12 50 #define XENOPROF_shutdown 13 51 #define XENOPROF_get_buffer 14 52 #define XENOPROF_set_backtrace 15 53 54 /* AMD IBS support */ 55 #define XENOPROF_get_ibs_caps 16 56 #define XENOPROF_ibs_counter 17 57 #define XENOPROF_last_op 17 58 59 #define MAX_OPROF_EVENTS 32 60 #define MAX_OPROF_DOMAINS 25 61 #define XENOPROF_CPU_TYPE_SIZE 64 62 63 /* Xenoprof performance events (not Xen events) */ 64 struct event_log { 65 uint64_t eip; 66 uint8_t mode; 67 uint8_t event; 68 }; 69 70 /* PC value that indicates a special code */ 71 #define XENOPROF_ESCAPE_CODE (~xen_mk_ullong(0)) 72 /* Transient events for the xenoprof->oprofile cpu buf */ 73 #define XENOPROF_TRACE_BEGIN 1 74 75 /* Xenoprof buffer shared between Xen and domain - 1 per VCPU */ 76 struct xenoprof_buf { 77 uint32_t event_head; 78 uint32_t event_tail; 79 uint32_t event_size; 80 uint32_t vcpu_id; 81 uint64_t xen_samples; 82 uint64_t kernel_samples; 83 uint64_t user_samples; 84 uint64_t lost_samples; 85 struct event_log event_log[1]; 86 }; 87 #ifndef __XEN__ 88 typedef struct xenoprof_buf xenoprof_buf_t; 89 DEFINE_XEN_GUEST_HANDLE(xenoprof_buf_t); 90 #endif 91 92 struct xenoprof_init { 93 int32_t num_events; 94 int32_t is_primary; 95 char cpu_type[XENOPROF_CPU_TYPE_SIZE]; 96 }; 97 typedef struct xenoprof_init xenoprof_init_t; 98 DEFINE_XEN_GUEST_HANDLE(xenoprof_init_t); 99 100 struct xenoprof_get_buffer { 101 int32_t max_samples; 102 int32_t nbuf; 103 int32_t bufsize; 104 uint64_t buf_gmaddr; 105 }; 106 typedef struct xenoprof_get_buffer xenoprof_get_buffer_t; 107 DEFINE_XEN_GUEST_HANDLE(xenoprof_get_buffer_t); 108 109 struct xenoprof_counter { 110 uint32_t ind; 111 uint64_t count; 112 uint32_t enabled; 113 uint32_t event; 114 uint32_t hypervisor; 115 uint32_t kernel; 116 uint32_t user; 117 uint64_t unit_mask; 118 }; 119 typedef struct xenoprof_counter xenoprof_counter_t; 120 DEFINE_XEN_GUEST_HANDLE(xenoprof_counter_t); 121 122 typedef struct xenoprof_passive { 123 uint16_t domain_id; 124 int32_t max_samples; 125 int32_t nbuf; 126 int32_t bufsize; 127 uint64_t buf_gmaddr; 128 } xenoprof_passive_t; 129 DEFINE_XEN_GUEST_HANDLE(xenoprof_passive_t); 130 131 struct xenoprof_ibs_counter { 132 uint64_t op_enabled; 133 uint64_t fetch_enabled; 134 uint64_t max_cnt_fetch; 135 uint64_t max_cnt_op; 136 uint64_t rand_en; 137 uint64_t dispatched_ops; 138 }; 139 typedef struct xenoprof_ibs_counter xenoprof_ibs_counter_t; 140 DEFINE_XEN_GUEST_HANDLE(xenoprof_ibs_counter_t); 141 142 #endif /* __XEN_PUBLIC_XENOPROF_H__ */ 143 144 /* 145 * Local variables: 146 * mode: C 147 * c-file-style: "BSD" 148 * c-basic-offset: 4 149 * tab-width: 4 150 * indent-tabs-mode: nil 151 * End: 152 */ 153