xenoprof.h revision 181624
1181624Skmacy/****************************************************************************** 2181624Skmacy * xenoprof.h 3181624Skmacy * 4181624Skmacy * Interface for enabling system wide profiling based on hardware performance 5181624Skmacy * counters 6181624Skmacy * 7181624Skmacy * Permission is hereby granted, free of charge, to any person obtaining a copy 8181624Skmacy * of this software and associated documentation files (the "Software"), to 9181624Skmacy * deal in the Software without restriction, including without limitation the 10181624Skmacy * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 11181624Skmacy * sell copies of the Software, and to permit persons to whom the Software is 12181624Skmacy * furnished to do so, subject to the following conditions: 13181624Skmacy * 14181624Skmacy * The above copyright notice and this permission notice shall be included in 15181624Skmacy * all copies or substantial portions of the Software. 16181624Skmacy * 17181624Skmacy * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18181624Skmacy * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19181624Skmacy * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20181624Skmacy * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21181624Skmacy * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22181624Skmacy * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 23181624Skmacy * DEALINGS IN THE SOFTWARE. 24181624Skmacy * 25181624Skmacy * Copyright (C) 2005 Hewlett-Packard Co. 26181624Skmacy * Written by Aravind Menon & Jose Renato Santos 27181624Skmacy */ 28181624Skmacy 29181624Skmacy#ifndef __XEN_PUBLIC_XENOPROF_H__ 30181624Skmacy#define __XEN_PUBLIC_XENOPROF_H__ 31181624Skmacy 32181624Skmacy#include "xen.h" 33181624Skmacy 34181624Skmacy/* 35181624Skmacy * Commands to HYPERVISOR_xenoprof_op(). 36181624Skmacy */ 37181624Skmacy#define XENOPROF_init 0 38181624Skmacy#define XENOPROF_reset_active_list 1 39181624Skmacy#define XENOPROF_reset_passive_list 2 40181624Skmacy#define XENOPROF_set_active 3 41181624Skmacy#define XENOPROF_set_passive 4 42181624Skmacy#define XENOPROF_reserve_counters 5 43181624Skmacy#define XENOPROF_counter 6 44181624Skmacy#define XENOPROF_setup_events 7 45181624Skmacy#define XENOPROF_enable_virq 8 46181624Skmacy#define XENOPROF_start 9 47181624Skmacy#define XENOPROF_stop 10 48181624Skmacy#define XENOPROF_disable_virq 11 49181624Skmacy#define XENOPROF_release_counters 12 50181624Skmacy#define XENOPROF_shutdown 13 51181624Skmacy#define XENOPROF_get_buffer 14 52181624Skmacy#define XENOPROF_set_backtrace 15 53181624Skmacy#define XENOPROF_last_op 15 54181624Skmacy 55181624Skmacy#define MAX_OPROF_EVENTS 32 56181624Skmacy#define MAX_OPROF_DOMAINS 25 57181624Skmacy#define XENOPROF_CPU_TYPE_SIZE 64 58181624Skmacy 59181624Skmacy/* Xenoprof performance events (not Xen events) */ 60181624Skmacystruct event_log { 61181624Skmacy uint64_t eip; 62181624Skmacy uint8_t mode; 63181624Skmacy uint8_t event; 64181624Skmacy}; 65181624Skmacy 66181624Skmacy/* PC value that indicates a special code */ 67181624Skmacy#define XENOPROF_ESCAPE_CODE ~0UL 68181624Skmacy/* Transient events for the xenoprof->oprofile cpu buf */ 69181624Skmacy#define XENOPROF_TRACE_BEGIN 1 70181624Skmacy 71181624Skmacy/* Xenoprof buffer shared between Xen and domain - 1 per VCPU */ 72181624Skmacystruct xenoprof_buf { 73181624Skmacy uint32_t event_head; 74181624Skmacy uint32_t event_tail; 75181624Skmacy uint32_t event_size; 76181624Skmacy uint32_t vcpu_id; 77181624Skmacy uint64_t xen_samples; 78181624Skmacy uint64_t kernel_samples; 79181624Skmacy uint64_t user_samples; 80181624Skmacy uint64_t lost_samples; 81181624Skmacy struct event_log event_log[1]; 82181624Skmacy}; 83181624Skmacy#ifndef __XEN__ 84181624Skmacytypedef struct xenoprof_buf xenoprof_buf_t; 85181624SkmacyDEFINE_XEN_GUEST_HANDLE(xenoprof_buf_t); 86181624Skmacy#endif 87181624Skmacy 88181624Skmacystruct xenoprof_init { 89181624Skmacy int32_t num_events; 90181624Skmacy int32_t is_primary; 91181624Skmacy char cpu_type[XENOPROF_CPU_TYPE_SIZE]; 92181624Skmacy}; 93181624Skmacytypedef struct xenoprof_init xenoprof_init_t; 94181624SkmacyDEFINE_XEN_GUEST_HANDLE(xenoprof_init_t); 95181624Skmacy 96181624Skmacystruct xenoprof_get_buffer { 97181624Skmacy int32_t max_samples; 98181624Skmacy int32_t nbuf; 99181624Skmacy int32_t bufsize; 100181624Skmacy uint64_t buf_gmaddr; 101181624Skmacy}; 102181624Skmacytypedef struct xenoprof_get_buffer xenoprof_get_buffer_t; 103181624SkmacyDEFINE_XEN_GUEST_HANDLE(xenoprof_get_buffer_t); 104181624Skmacy 105181624Skmacystruct xenoprof_counter { 106181624Skmacy uint32_t ind; 107181624Skmacy uint64_t count; 108181624Skmacy uint32_t enabled; 109181624Skmacy uint32_t event; 110181624Skmacy uint32_t hypervisor; 111181624Skmacy uint32_t kernel; 112181624Skmacy uint32_t user; 113181624Skmacy uint64_t unit_mask; 114181624Skmacy}; 115181624Skmacytypedef struct xenoprof_counter xenoprof_counter_t; 116181624SkmacyDEFINE_XEN_GUEST_HANDLE(xenoprof_counter_t); 117181624Skmacy 118181624Skmacytypedef struct xenoprof_passive { 119181624Skmacy uint16_t domain_id; 120181624Skmacy int32_t max_samples; 121181624Skmacy int32_t nbuf; 122181624Skmacy int32_t bufsize; 123181624Skmacy uint64_t buf_gmaddr; 124181624Skmacy} xenoprof_passive_t; 125181624SkmacyDEFINE_XEN_GUEST_HANDLE(xenoprof_passive_t); 126181624Skmacy 127181624Skmacy 128181624Skmacy#endif /* __XEN_PUBLIC_XENOPROF_H__ */ 129181624Skmacy 130181624Skmacy/* 131181624Skmacy * Local variables: 132181624Skmacy * mode: C 133181624Skmacy * c-set-style: "BSD" 134181624Skmacy * c-basic-offset: 4 135181624Skmacy * tab-width: 4 136181624Skmacy * indent-tabs-mode: nil 137181624Skmacy * End: 138181624Skmacy */ 139