osfmk/mach/host_info.h

   1 /*
   2  * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31 /*
  32  * Mach Operating System
  33  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
  34  * All Rights Reserved.
  35  *
  36  * Permission to use, copy, modify and distribute this software and its
  37  * documentation is hereby granted, provided that both the copyright
  38  * notice and this permission notice appear in all copies of the
  39  * software, derivative works or modified versions, and any portions
  40  * thereof, and that both notices appear in supporting documentation.
  41  *
  42  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  43  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  44  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  45  *
  46  * Carnegie Mellon requests users of this software to return to
  47  *
  48  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  49  *  School of Computer Science
  50  *  Carnegie Mellon University
  51  *  Pittsburgh PA 15213-3890
  52  *
  53  * any improvements or extensions that they make and grant Carnegie Mellon
  54  * the rights to redistribute these changes.
  55  */
  56 /*
  57  */
  58
  59 /*
  60  *      File:   mach/host_info.h
  61  *
  62  *      Definitions for host_info call.
  63  */
  64
  65 #ifndef _MACH_HOST_INFO_H_
  66 #define _MACH_HOST_INFO_H_
  67
  68 #include <mach/message.h>
  69 #include <mach/vm_statistics.h>
  70 #include <mach/machine.h>
  71 #include <mach/machine/vm_types.h>
  72 #include <mach/time_value.h>
  73
  74 #include <sys/cdefs.h>
  75
  76 /*
  77  *      Generic information structure to allow for expansion.
  78  */
  79 typedef integer_t       *host_info_t;           /* varying array of int. */
  80 typedef integer_t       *host_info64_t;         /* varying array of int. */
  81
  82 #define HOST_INFO_MAX   (1024)          /* max array size */
  83 typedef integer_t       host_info_data_t[HOST_INFO_MAX];
  84
  85 #define KERNEL_VERSION_MAX (512)
  86 typedef char    kernel_version_t[KERNEL_VERSION_MAX];
  87
  88 #define KERNEL_BOOT_INFO_MAX (4096)
  89 typedef char    kernel_boot_info_t[KERNEL_BOOT_INFO_MAX];
  90
  91 /*
  92  *      Currently defined information.
  93  */
  94 /* host_info() */
  95 typedef integer_t       host_flavor_t;
  96 #define HOST_BASIC_INFO         1       /* basic info */
  97 #define HOST_SCHED_INFO         3       /* scheduling info */
  98 #define HOST_RESOURCE_SIZES     4       /* kernel struct sizes */
  99 #define HOST_PRIORITY_INFO      5       /* priority information */
 100 #define HOST_SEMAPHORE_TRAPS    7       /* Has semaphore traps */
 101 #define HOST_MACH_MSG_TRAP      8       /* Has mach_msg_trap */
 102
 103 #ifdef MACH_KERNEL_PRIVATE
 104 struct host_basic_info_old {
 105         integer_t       max_cpus;       /* max number of cpus possible */
 106         uint32_t        avail_cpus;     /* number of cpus now available */
 107         natural_t       memory_size;    /* size of memory in bytes */
 108         cpu_type_t      cpu_type;       /* cpu type */
 109         cpu_subtype_t   cpu_subtype;    /* cpu subtype */
 110 };
 111
 112 typedef struct host_basic_info_old      host_basic_info_data_old_t;
 113 typedef struct host_basic_info_old      *host_basic_info_old_t;
 114 #define HOST_BASIC_INFO_OLD_COUNT ((mach_msg_type_number_t) \
 115                 (sizeof(host_basic_info_data_old_t)/sizeof(integer_t)))
 116 #endif
 117
 118 #pragma pack(4)
 119
 120 struct host_basic_info {
 121         integer_t               max_cpus;               /* max number of CPUs possible */
 122         integer_t               avail_cpus;             /* number of CPUs now available */
 123         natural_t               memory_size;            /* size of memory in bytes, capped at 2 GB */
 124         cpu_type_t              cpu_type;               /* cpu type */
 125         cpu_subtype_t           cpu_subtype;            /* cpu subtype */
 126         cpu_threadtype_t        cpu_threadtype;         /* cpu threadtype */
 127         integer_t               physical_cpu;           /* number of physical CPUs now available */
 128         integer_t               physical_cpu_max;       /* max number of physical CPUs possible */
 129         integer_t               logical_cpu;            /* number of logical cpu now available */
 130         integer_t               logical_cpu_max;        /* max number of physical CPUs possible */
 131         uint64_t                max_mem;                /* actual size of physical memory */
 132 };
 133
 134 #pragma pack()
 135
 136 typedef struct host_basic_info  host_basic_info_data_t;
 137 typedef struct host_basic_info  *host_basic_info_t;
 138 #define HOST_BASIC_INFO_COUNT ((mach_msg_type_number_t) \
 139                 (sizeof(host_basic_info_data_t)/sizeof(integer_t)))
 140
 141 struct host_sched_info {
 142         integer_t       min_timeout;    /* minimum timeout in milliseconds */
 143         integer_t       min_quantum;    /* minimum quantum in milliseconds */
 144 };
 145
 146 typedef struct host_sched_info  host_sched_info_data_t;
 147 typedef struct host_sched_info  *host_sched_info_t;
 148 #define HOST_SCHED_INFO_COUNT ((mach_msg_type_number_t) \
 149                 (sizeof(host_sched_info_data_t)/sizeof(integer_t)))
 150
 151 struct kernel_resource_sizes {
 152         natural_t       task;
 153         natural_t       thread;
 154         natural_t       port;
 155         natural_t       memory_region;
 156         natural_t       memory_object;
 157 };
 158
 159 typedef struct kernel_resource_sizes    kernel_resource_sizes_data_t;
 160 typedef struct kernel_resource_sizes    *kernel_resource_sizes_t;
 161 #define HOST_RESOURCE_SIZES_COUNT ((mach_msg_type_number_t) \
 162                 (sizeof(kernel_resource_sizes_data_t)/sizeof(integer_t)))
 163
 164 struct host_priority_info {
 165         integer_t       kernel_priority;
 166         integer_t       system_priority;
 167         integer_t       server_priority;
 168         integer_t       user_priority;
 169         integer_t       depress_priority;
 170         integer_t       idle_priority;
 171         integer_t       minimum_priority;
 172         integer_t       maximum_priority;
 173 };
 174
 175 typedef struct host_priority_info       host_priority_info_data_t;
 176 typedef struct host_priority_info       *host_priority_info_t;
 177 #define HOST_PRIORITY_INFO_COUNT ((mach_msg_type_number_t) \
 178                 (sizeof(host_priority_info_data_t)/sizeof(integer_t)))
 179
 180 /* host_statistics() */
 181 #define HOST_LOAD_INFO          1       /* System loading stats */
 182 #define HOST_VM_INFO            2       /* Virtual memory stats */
 183 #define HOST_CPU_LOAD_INFO      3       /* CPU load stats */
 184
 185 /* host_statistics64() */
 186 #define HOST_VM_INFO64          4       /* 64-bit virtual memory stats */
 187 #define HOST_EXTMOD_INFO64      5       /* External modification stats */
 188 #define HOST_EXPIRED_TASK_INFO        6        /* Statistics for expired tasks */
 189
 190 struct host_load_info {
 191         integer_t       avenrun[3];     /* scaled by LOAD_SCALE */
 192         integer_t       mach_factor[3]; /* scaled by LOAD_SCALE */
 193 };
 194
 195 typedef struct host_load_info   host_load_info_data_t;
 196 typedef struct host_load_info   *host_load_info_t;
 197 #define HOST_LOAD_INFO_COUNT ((mach_msg_type_number_t) \
 198                 (sizeof(host_load_info_data_t)/sizeof(integer_t)))
 199
 200 /* in <mach/vm_statistics.h> */
 201 /* vm_statistics64 */
 202 #define HOST_VM_INFO64_COUNT ((mach_msg_type_number_t) \
 203                 (sizeof(vm_statistics64_data_t)/sizeof(integer_t)))
 204
 205 /* size of the latest version of the structure */
 206 #define HOST_VM_INFO64_LATEST_COUNT HOST_VM_INFO64_COUNT
 207
 208 /* in <mach/vm_statistics.h> */
 209 /* vm_extmod_statistics */
 210 #define HOST_EXTMOD_INFO64_COUNT ((mach_msg_type_number_t) \
 211             (sizeof(vm_extmod_statistics_data_t)/sizeof(integer_t)))
 212
 213 /* size of the latest version of the structure */
 214 #define HOST_EXTMOD_INFO64_LATEST_COUNT HOST_EXTMOD_INFO64_COUNT
 215
 216 /* vm_statistics */
 217 #define HOST_VM_INFO_COUNT ((mach_msg_type_number_t) \
 218                 (sizeof(vm_statistics_data_t)/sizeof(integer_t)))
 219
 220 /* size of the latest version of the structure */
 221 #define HOST_VM_INFO_LATEST_COUNT HOST_VM_INFO_COUNT
 222 #define HOST_VM_INFO_REV2_COUNT HOST_VM_INFO_LATEST_COUNT
 223 /* previous versions: adjust the size according to what was added each time */
 224 #define HOST_VM_INFO_REV1_COUNT /* added "speculative_count" (1 int) */ \
 225         ((mach_msg_type_number_t) \
 226          (HOST_VM_INFO_REV2_COUNT - 1))
 227 #define HOST_VM_INFO_REV0_COUNT /* added "purgable" info (2 ints) */    \
 228         ((mach_msg_type_number_t) \
 229          (HOST_VM_INFO_REV1_COUNT - 2))
 230
 231 struct host_cpu_load_info {             /* number of ticks while running... */
 232         natural_t       cpu_ticks[CPU_STATE_MAX]; /* ... in the given mode */
 233 };
 234
 235 typedef struct host_cpu_load_info       host_cpu_load_info_data_t;
 236 typedef struct host_cpu_load_info       *host_cpu_load_info_t;
 237 #define HOST_CPU_LOAD_INFO_COUNT ((mach_msg_type_number_t) \
 238                 (sizeof (host_cpu_load_info_data_t) / sizeof (integer_t)))
 239
 240 #ifdef PRIVATE
 241 /*
 242  * CPU Statistics information
 243  */
 244 struct _processor_statistics_np  {
 245         int32_t                 ps_cpuid;
 246
 247         uint32_t                ps_csw_count;
 248         uint32_t                ps_preempt_count;
 249         uint32_t                ps_preempted_rt_count;
 250         uint32_t                ps_preempted_by_rt_count;
 251
 252         uint32_t                ps_rt_sched_count;
 253
 254         uint32_t                ps_interrupt_count;
 255         uint32_t                ps_ipi_count;
 256         uint32_t                ps_timer_pop_count;
 257
 258         uint64_t                ps_runq_count_sum __attribute((aligned(8)));
 259
 260         uint32_t                ps_idle_transitions;
 261         uint32_t                ps_quantum_timer_expirations;
 262 };
 263
 264 #endif /* PRIVATE */
 265
 266 #ifdef KERNEL_PRIVATE
 267
 268 extern kern_return_t    set_sched_stats_active(
 269                                         boolean_t active);
 270
 271 extern kern_return_t    get_sched_statistics(
 272                                         struct _processor_statistics_np *out,
 273                                         uint32_t *count);
 274 #endif  /* KERNEL_PRIVATE */
 275
 276
 277 #endif  /* _MACH_HOST_INFO_H_ */