139 lines
4.0 KiB
C
139 lines
4.0 KiB
C
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/******************************************************************************
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* xenoprof.h
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*
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* Interface for enabling system wide profiling based on hardware performance
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* counters
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Copyright (C) 2005 Hewlett-Packard Co.
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* Written by Aravind Menon & Jose Renato Santos
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*/
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#ifndef __XEN_PUBLIC_XENOPROF_H__
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#define __XEN_PUBLIC_XENOPROF_H__
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#include "xen.h"
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/*
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* Commands to HYPERVISOR_xenoprof_op().
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*/
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#define XENOPROF_init 0
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#define XENOPROF_reset_active_list 1
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#define XENOPROF_reset_passive_list 2
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#define XENOPROF_set_active 3
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#define XENOPROF_set_passive 4
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#define XENOPROF_reserve_counters 5
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#define XENOPROF_counter 6
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#define XENOPROF_setup_events 7
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#define XENOPROF_enable_virq 8
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#define XENOPROF_start 9
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#define XENOPROF_stop 10
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#define XENOPROF_disable_virq 11
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#define XENOPROF_release_counters 12
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#define XENOPROF_shutdown 13
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#define XENOPROF_get_buffer 14
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#define XENOPROF_set_backtrace 15
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#define XENOPROF_last_op 15
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#define MAX_OPROF_EVENTS 32
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#define MAX_OPROF_DOMAINS 25
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#define XENOPROF_CPU_TYPE_SIZE 64
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/* Xenoprof performance events (not Xen events) */
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struct event_log {
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uint64_t eip;
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uint8_t mode;
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uint8_t event;
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};
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/* PC value that indicates a special code */
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#define XENOPROF_ESCAPE_CODE ~0UL
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/* Transient events for the xenoprof->oprofile cpu buf */
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#define XENOPROF_TRACE_BEGIN 1
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/* Xenoprof buffer shared between Xen and domain - 1 per VCPU */
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struct xenoprof_buf {
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uint32_t event_head;
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uint32_t event_tail;
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uint32_t event_size;
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uint32_t vcpu_id;
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uint64_t xen_samples;
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uint64_t kernel_samples;
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uint64_t user_samples;
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uint64_t lost_samples;
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struct event_log event_log[1];
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};
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#ifndef __XEN__
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typedef struct xenoprof_buf xenoprof_buf_t;
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DEFINE_XEN_GUEST_HANDLE(xenoprof_buf_t);
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#endif
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struct xenoprof_init {
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int32_t num_events;
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int32_t is_primary;
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char cpu_type[XENOPROF_CPU_TYPE_SIZE];
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};
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typedef struct xenoprof_init xenoprof_init_t;
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DEFINE_XEN_GUEST_HANDLE(xenoprof_init_t);
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struct xenoprof_get_buffer {
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int32_t max_samples;
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int32_t nbuf;
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int32_t bufsize;
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uint64_t buf_gmaddr;
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};
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typedef struct xenoprof_get_buffer xenoprof_get_buffer_t;
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DEFINE_XEN_GUEST_HANDLE(xenoprof_get_buffer_t);
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struct xenoprof_counter {
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uint32_t ind;
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uint64_t count;
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uint32_t enabled;
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uint32_t event;
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uint32_t hypervisor;
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uint32_t kernel;
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uint32_t user;
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uint64_t unit_mask;
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};
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typedef struct xenoprof_counter xenoprof_counter_t;
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DEFINE_XEN_GUEST_HANDLE(xenoprof_counter_t);
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typedef struct xenoprof_passive {
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uint16_t domain_id;
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int32_t max_samples;
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int32_t nbuf;
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int32_t bufsize;
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uint64_t buf_gmaddr;
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} xenoprof_passive_t;
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DEFINE_XEN_GUEST_HANDLE(xenoprof_passive_t);
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#endif /* __XEN_PUBLIC_XENOPROF_H__ */
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/*
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* Local variables:
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* mode: C
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* c-set-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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