3a9fd8242b
The current path of the Xen headers at /sys/xen/interface/ is not correct, as those headers are imported verbatim from the Xen sources and shouldn't be modified, as any modifications would be lost when a new version is imported. Changes to the public headers must be first done in Xen upstream so that they can be backported and new imports will already carry them. Import Xen 4.16 headers in sys/contrib/xen/. It's unlikely that we will import different Xen code, so don't place them inside of any subdirectory. If in the future other pieces of Xen code need to be imported the headers will need to move into an include/ subdirectory. Note that this commit does not yet modify the include path to use the newly imported headers. Sponsored by: Citrix Systems R&D
153 lines
4.4 KiB
C
153 lines
4.4 KiB
C
/******************************************************************************
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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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/* AMD IBS support */
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#define XENOPROF_get_ibs_caps 16
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#define XENOPROF_ibs_counter 17
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#define XENOPROF_last_op 17
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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 (~xen_mk_ullong(0))
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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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struct xenoprof_ibs_counter {
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uint64_t op_enabled;
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uint64_t fetch_enabled;
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uint64_t max_cnt_fetch;
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uint64_t max_cnt_op;
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uint64_t rand_en;
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uint64_t dispatched_ops;
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};
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typedef struct xenoprof_ibs_counter xenoprof_ibs_counter_t;
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DEFINE_XEN_GUEST_HANDLE(xenoprof_ibs_counter_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-file-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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