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Annotation of Gnu-Mach/xen/public/xenoprof.h, revision 1.1

1.1     ! root        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: #define XENOPROF_last_op            15
        !            54: 
        !            55: #define MAX_OPROF_EVENTS    32
        !            56: #define MAX_OPROF_DOMAINS   25
        !            57: #define XENOPROF_CPU_TYPE_SIZE 64
        !            58: 
        !            59: /* Xenoprof performance events (not Xen events) */
        !            60: struct event_log {
        !            61:     uint64_t eip;
        !            62:     uint8_t mode;
        !            63:     uint8_t event;
        !            64: };
        !            65: 
        !            66: /* PC value that indicates a special code */
        !            67: #define XENOPROF_ESCAPE_CODE ~0UL
        !            68: /* Transient events for the xenoprof->oprofile cpu buf */
        !            69: #define XENOPROF_TRACE_BEGIN 1
        !            70: 
        !            71: /* Xenoprof buffer shared between Xen and domain - 1 per VCPU */
        !            72: struct xenoprof_buf {
        !            73:     uint32_t event_head;
        !            74:     uint32_t event_tail;
        !            75:     uint32_t event_size;
        !            76:     uint32_t vcpu_id;
        !            77:     uint64_t xen_samples;
        !            78:     uint64_t kernel_samples;
        !            79:     uint64_t user_samples;
        !            80:     uint64_t lost_samples;
        !            81:     struct event_log event_log[1];
        !            82: };
        !            83: #ifndef __XEN__
        !            84: typedef struct xenoprof_buf xenoprof_buf_t;
        !            85: DEFINE_XEN_GUEST_HANDLE(xenoprof_buf_t);
        !            86: #endif
        !            87: 
        !            88: struct xenoprof_init {
        !            89:     int32_t  num_events;
        !            90:     int32_t  is_primary;
        !            91:     char cpu_type[XENOPROF_CPU_TYPE_SIZE];
        !            92: };
        !            93: typedef struct xenoprof_init xenoprof_init_t;
        !            94: DEFINE_XEN_GUEST_HANDLE(xenoprof_init_t);
        !            95: 
        !            96: struct xenoprof_get_buffer {
        !            97:     int32_t  max_samples;
        !            98:     int32_t  nbuf;
        !            99:     int32_t  bufsize;
        !           100:     uint64_t buf_gmaddr;
        !           101: };
        !           102: typedef struct xenoprof_get_buffer xenoprof_get_buffer_t;
        !           103: DEFINE_XEN_GUEST_HANDLE(xenoprof_get_buffer_t);
        !           104: 
        !           105: struct xenoprof_counter {
        !           106:     uint32_t ind;
        !           107:     uint64_t count;
        !           108:     uint32_t enabled;
        !           109:     uint32_t event;
        !           110:     uint32_t hypervisor;
        !           111:     uint32_t kernel;
        !           112:     uint32_t user;
        !           113:     uint64_t unit_mask;
        !           114: };
        !           115: typedef struct xenoprof_counter xenoprof_counter_t;
        !           116: DEFINE_XEN_GUEST_HANDLE(xenoprof_counter_t);
        !           117: 
        !           118: typedef struct xenoprof_passive {
        !           119:     uint16_t domain_id;
        !           120:     int32_t  max_samples;
        !           121:     int32_t  nbuf;
        !           122:     int32_t  bufsize;
        !           123:     uint64_t buf_gmaddr;
        !           124: } xenoprof_passive_t;
        !           125: DEFINE_XEN_GUEST_HANDLE(xenoprof_passive_t);
        !           126: 
        !           127: 
        !           128: #endif /* __XEN_PUBLIC_XENOPROF_H__ */
        !           129: 
        !           130: /*
        !           131:  * Local variables:
        !           132:  * mode: C
        !           133:  * c-set-style: "BSD"
        !           134:  * c-basic-offset: 4
        !           135:  * tab-width: 4
        !           136:  * indent-tabs-mode: nil
        !           137:  * End:
        !           138:  */

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