bsd/kern/kern_mib.c

   1 /*
   2  * Copyright (c) 2000-2007 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  * Copyright (c) 1982, 1986, 1989, 1993
  30  *      The Regents of the University of California.  All rights reserved.
  31  *
  32  * This code is derived from software contributed to Berkeley by
  33  * Mike Karels at Berkeley Software Design, Inc.
  34  *
  35  * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD
  36  * project, to make these variables more userfriendly.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  * 1. Redistributions of source code must retain the above copyright
  42  *    notice, this list of conditions and the following disclaimer.
  43  * 2. Redistributions in binary form must reproduce the above copyright
  44  *    notice, this list of conditions and the following disclaimer in the
  45  *    documentation and/or other materials provided with the distribution.
  46  * 3. All advertising materials mentioning features or use of this software
  47  *    must display the following acknowledgement:
  48  *      This product includes software developed by the University of
  49  *      California, Berkeley and its contributors.
  50  * 4. Neither the name of the University nor the names of its contributors
  51  *    may be used to endorse or promote products derived from this software
  52  *    without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  55  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  56  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  57  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  58  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  59  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  60  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  61  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  62  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  63  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  64  * SUCH DAMAGE.
  65  *
  66  *      @(#)kern_sysctl.c       8.4 (Berkeley) 4/14/94
  67  */
  68
  69 #include <sys/param.h>
  70 #include <sys/kernel.h>
  71 #include <sys/systm.h>
  72 #include <sys/sysctl.h>
  73 #include <sys/proc_internal.h>
  74 #include <sys/unistd.h>
  75
  76 #if defined(SMP)
  77 #include <machine/smp.h>
  78 #endif
  79
  80 #include <sys/param.h>  /* XXX prune includes */
  81 #include <sys/systm.h>
  82 #include <sys/kernel.h>
  83 #include <sys/malloc.h>
  84 #include <sys/proc.h>
  85 #include <sys/file_internal.h>
  86 #include <sys/vnode.h>
  87 #include <sys/unistd.h>
  88 #include <sys/ioctl.h>
  89 #include <sys/namei.h>
  90 #include <sys/tty.h>
  91 #include <sys/disklabel.h>
  92 #include <sys/vm.h>
  93 #include <sys/sysctl.h>
  94 #include <sys/user.h>
  95 #include <mach/machine.h>
  96 #include <mach/mach_types.h>
  97 #include <mach/vm_param.h>
  98 #include <kern/task.h>
  99 #include <vm/vm_kern.h>
 100 #include <vm/vm_map.h>
 101 #include <mach/host_info.h>
 102 #include <kern/pms.h>
 103
 104 extern vm_map_t bsd_pageable_map;
 105
 106 #include <sys/mount_internal.h>
 107 #include <sys/kdebug.h>
 108
 109 #include <IOKit/IOPlatformExpert.h>
 110 #include <pexpert/pexpert.h>
 111
 112 #include <machine/machine_routines.h>
 113 #include <machine/cpu_capabilities.h>
 114
 115 #include <mach/mach_host.h>             /* for host_info() */
 116
 117 #if defined(__i386__) || defined(__x86_64__)
 118 #include <i386/cpuid.h> /* for cpuid_info() */
 119 #endif
 120
 121
 122
 123 #ifndef MAX
 124 #define MAX(a,b) (a >= b ? a : b)
 125 #endif
 126
 127 /* XXX This should be in a BSD accessible Mach header, but isn't. */
 128 extern unsigned int vm_page_wire_count;
 129
 130 static int      cputype, cpusubtype, cputhreadtype, cpufamily, cpu64bit;
 131 static uint64_t cacheconfig[10], cachesize[10];
 132 static int      packages;
 133
 134 SYSCTL_NODE(, 0,          sysctl, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 135         "Sysctl internal magic");
 136 SYSCTL_NODE(, CTL_KERN,   kern,   CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 137         "High kernel, proc, limits &c");
 138 SYSCTL_NODE(, CTL_VM,     vm,     CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 139         "Virtual memory");
 140 SYSCTL_NODE(, CTL_VFS,    vfs,     CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 141         "File system");
 142 SYSCTL_NODE(, CTL_NET,    net,    CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 143         "Network, (see socket.h)");
 144 SYSCTL_NODE(, CTL_DEBUG,  debug,  CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 145         "Debugging");
 146 SYSCTL_NODE(, CTL_HW,     hw,     CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 147         "hardware");
 148 SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 149         "machine dependent");
 150 SYSCTL_NODE(, CTL_USER,   user,   CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 151         "user-level");
 152
 153 #define SYSCTL_RETURN(r, x)     SYSCTL_OUT(r, &x, sizeof(x))
 154
 155 /******************************************************************************
 156  * hw.* MIB
 157  */
 158
 159 #define CTLHW_RETQUAD   (1 << 31)
 160 #define CTLHW_LOCAL     (1 << 30)
 161
 162 #define HW_LOCAL_CPUTHREADTYPE  (1 | CTLHW_LOCAL)
 163 #define HW_LOCAL_PHYSICALCPU    (2 | CTLHW_LOCAL)
 164 #define HW_LOCAL_PHYSICALCPUMAX (3 | CTLHW_LOCAL)
 165 #define HW_LOCAL_LOGICALCPU     (4 | CTLHW_LOCAL)
 166 #define HW_LOCAL_LOGICALCPUMAX  (5 | CTLHW_LOCAL)
 167
 168
 169 /*
 170  * Supporting some variables requires us to do "real" work.  We
 171  * gather some of that here.
 172  */
 173 static int
 174 sysctl_hw_generic(__unused struct sysctl_oid *oidp, __unused void *arg1,
 175         int arg2, struct sysctl_req *req)
 176 {
 177         char dummy[65];
 178         int  epochTemp;
 179         ml_cpu_info_t cpu_info;
 180         int val, doquad;
 181         long long qval;
 182         host_basic_info_data_t hinfo;
 183         kern_return_t kret;
 184         mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
 185
 186         /*
 187          * Test and mask off the 'return quad' flag.
 188          * Note that only some things here support it.
 189          */
 190         doquad = arg2 & CTLHW_RETQUAD;
 191         arg2 &= ~CTLHW_RETQUAD;
 192
 193         ml_cpu_get_info(&cpu_info);
 194
 195 #define BSD_HOST 1
 196         kret = host_info((host_t)BSD_HOST, HOST_BASIC_INFO, (host_info_t)&hinfo, &count);
 197
 198         /*
 199          * Handle various OIDs.
 200          *
 201          * OIDs that can return int or quad set val and qval and then break.
 202          * Errors and int-only values return inline.
 203          */
 204         switch (arg2) {
 205         case HW_NCPU:
 206                 if (kret == KERN_SUCCESS) {
 207                         return(SYSCTL_RETURN(req, hinfo.max_cpus));
 208                 } else {
 209                         return(EINVAL);
 210                 }
 211         case HW_AVAILCPU:
 212                 if (kret == KERN_SUCCESS) {
 213                         return(SYSCTL_RETURN(req, hinfo.avail_cpus));
 214                 } else {
 215                         return(EINVAL);
 216                 }
 217         case HW_LOCAL_PHYSICALCPU:
 218                 if (kret == KERN_SUCCESS) {
 219                         return(SYSCTL_RETURN(req, hinfo.physical_cpu));
 220                 } else {
 221                         return(EINVAL);
 222                 }
 223         case HW_LOCAL_PHYSICALCPUMAX:
 224                 if (kret == KERN_SUCCESS) {
 225                         return(SYSCTL_RETURN(req, hinfo.physical_cpu_max));
 226                 } else {
 227                         return(EINVAL);
 228                 }
 229         case HW_LOCAL_LOGICALCPU:
 230                 if (kret == KERN_SUCCESS) {
 231                         return(SYSCTL_RETURN(req, hinfo.logical_cpu));
 232                 } else {
 233                         return(EINVAL);
 234                 }
 235         case HW_LOCAL_LOGICALCPUMAX:
 236                 if (kret == KERN_SUCCESS) {
 237                         return(SYSCTL_RETURN(req, hinfo.logical_cpu_max));
 238                 } else {
 239                         return(EINVAL);
 240                 }
 241         case HW_PAGESIZE:
 242         {
 243                 vm_map_t map = get_task_map(current_task());
 244                 val = vm_map_page_size(map);
 245                 qval = (long long)val;
 246                 break;
 247         }
 248         case HW_CACHELINE:
 249                 val = cpu_info.cache_line_size;
 250                 qval = (long long)val;
 251                 break;
 252         case HW_L1ICACHESIZE:
 253                 val = cpu_info.l1_icache_size;
 254                 qval = (long long)val;
 255                 break;
 256         case HW_L1DCACHESIZE:
 257                 val = cpu_info.l1_dcache_size;
 258                 qval = (long long)val;
 259                 break;
 260         case HW_L2CACHESIZE:
 261                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 262                         return(EINVAL);
 263                 val = cpu_info.l2_cache_size;
 264                 qval = (long long)val;
 265                 break;
 266         case HW_L3CACHESIZE:
 267                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 268                         return(EINVAL);
 269                 val = cpu_info.l3_cache_size;
 270                 qval = (long long)val;
 271                 break;
 272
 273                 /*
 274                  * Deprecated variables.  We still support these for
 275                  * backwards compatibility purposes only.
 276                  */
 277         case HW_MACHINE:
 278                 bzero(dummy, sizeof(dummy));
 279                 if(!PEGetMachineName(dummy,64))
 280                         return(EINVAL);
 281                 dummy[64] = 0;
 282                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 283         case HW_MODEL:
 284                 bzero(dummy, sizeof(dummy));
 285                 if(!PEGetModelName(dummy,64))
 286                         return(EINVAL);
 287                 dummy[64] = 0;
 288                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 289         case HW_USERMEM:
 290                 {
 291                 int usermem = mem_size - vm_page_wire_count * page_size;
 292
 293                         return(SYSCTL_RETURN(req, usermem));
 294                 }
 295         case HW_EPOCH:
 296                 epochTemp = PEGetPlatformEpoch();
 297                 if (epochTemp == -1)
 298                         return(EINVAL);
 299                 return(SYSCTL_RETURN(req, epochTemp));
 300         case HW_VECTORUNIT: {
 301                 int vector = cpu_info.vector_unit == 0? 0 : 1;
 302                 return(SYSCTL_RETURN(req, vector));
 303         }
 304         case HW_L2SETTINGS:
 305                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 306                         return(EINVAL);
 307                 return(SYSCTL_RETURN(req, cpu_info.l2_settings));
 308         case HW_L3SETTINGS:
 309                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 310                         return(EINVAL);
 311                 return(SYSCTL_RETURN(req, cpu_info.l3_settings));
 312         default:
 313                 return(ENOTSUP);
 314         }
 315         /*
 316          * Callers may come to us with either int or quad buffers.
 317          */
 318         if (doquad) {
 319                 return(SYSCTL_RETURN(req, qval));
 320         }
 321         return(SYSCTL_RETURN(req, val));
 322 }
 323
 324 /* hw.pagesize and hw.tbfrequency are expected as 64 bit values */
 325 static int
 326 sysctl_pagesize
 327 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 328 {
 329         vm_map_t map = get_task_map(current_task());
 330         long long l = vm_map_page_size(map);
 331         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 332 }
 333
 334 static int
 335 sysctl_tbfrequency
 336 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 337 {
 338         long long l = gPEClockFrequencyInfo.timebase_frequency_hz;
 339         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 340 }
 341
 342 /*
 343  * hw.* MIB variables.
 344  */
 345 SYSCTL_PROC    (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_NCPU, sysctl_hw_generic, "I", "");
 346 SYSCTL_PROC    (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
 347 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
 348 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
 349 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
 350 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
 351 SYSCTL_INT     (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, BYTE_ORDER, "");
 352 SYSCTL_INT     (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputype, 0, "");
 353 SYSCTL_INT     (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpusubtype, 0, "");
 354 SYSCTL_INT     (_hw, OID_AUTO, cpu64bit_capable, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpu64bit, 0, "");
 355 SYSCTL_INT     (_hw, OID_AUTO, cpufamily, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpufamily, 0, "");
 356 SYSCTL_OPAQUE  (_hw, OID_AUTO, cacheconfig, CTLFLAG_RD | CTLFLAG_LOCKED, &cacheconfig, sizeof(cacheconfig), "Q", "");
 357 SYSCTL_OPAQUE  (_hw, OID_AUTO, cachesize, CTLFLAG_RD | CTLFLAG_LOCKED, &cachesize, sizeof(cachesize), "Q", "");
 358 SYSCTL_PROC        (_hw, OID_AUTO, pagesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize, "Q", "");
 359 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_hz, "");
 360 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
 361 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
 362 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
 363 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
 364 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
 365 SYSCTL_PROC    (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 366 SYSCTL_PROC    (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 367 SYSCTL_PROC    (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 368 SYSCTL_PROC    (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 369 SYSCTL_PROC    (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 370 SYSCTL_PROC(_hw, OID_AUTO, tbfrequency, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_tbfrequency, "Q", "");
 371 SYSCTL_QUAD    (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &max_mem, "");
 372 SYSCTL_INT     (_hw, OID_AUTO, packages, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &packages, 0, "");
 373
 374 /*
 375  * Optional features can register nodes below hw.optional.
 376  *
 377  * If the feature is not present, the node should either not be registered,
 378  * or it should return -1.  If the feature is present, the node should return
 379  * 0.  If the feature is present and its use is advised, the node should
 380  * return 1.
 381  */
 382 SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW|CTLFLAG_LOCKED, NULL, "optional features");
 383
 384 SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, 1, "");      /* always set */
 385
 386 /*
 387  * Deprecated variables.  These are supported for backwards compatibility
 388  * purposes only.  The MASKED flag requests that the variables not be
 389  * printed by sysctl(8) and similar utilities.
 390  *
 391  * The variables named *_compat here are int-sized versions of variables
 392  * that are now exported as quads.  The int-sized versions are normally
 393  * looked up only by number, wheras the quad-sized versions should be
 394  * looked up by name.
 395  *
 396  * The *_compat nodes are *NOT* visible within the kernel.
 397  */
 398 SYSCTL_PROC(_hw, HW_PAGESIZE,     pagesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_PAGESIZE, sysctl_hw_generic, "I", "");
 399 SYSCTL_COMPAT_INT (_hw, HW_BUS_FREQ,     busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
 400 SYSCTL_COMPAT_INT (_hw, HW_CPU_FREQ,     cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
 401 SYSCTL_PROC(_hw, HW_CACHELINE,    cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
 402 SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
 403 SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
 404 SYSCTL_PROC(_hw, HW_L2CACHESIZE,  l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
 405 SYSCTL_PROC(_hw, HW_L3CACHESIZE,  l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
 406 SYSCTL_COMPAT_INT (_hw, HW_TB_FREQ,      tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
 407 SYSCTL_PROC(_hw, HW_MACHINE,      machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
 408 SYSCTL_PROC(_hw, HW_MODEL,        model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
 409 SYSCTL_COMPAT_UINT(_hw, HW_PHYSMEM,      physmem, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &mem_size, 0, "");
 410 SYSCTL_PROC(_hw, HW_USERMEM,      usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_USERMEM,   sysctl_hw_generic, "I", "");
 411 SYSCTL_PROC(_hw, HW_EPOCH,        epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
 412 SYSCTL_PROC(_hw, HW_VECTORUNIT,   vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
 413 SYSCTL_PROC(_hw, HW_L2SETTINGS,   l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
 414 SYSCTL_PROC(_hw, HW_L3SETTINGS,   l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
 415 SYSCTL_INT (_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputhreadtype, 0, "");
 416
 417 #if defined(__i386__) || defined(__x86_64__)
 418 static int
 419 sysctl_cpu_capability
 420 (__unused struct sysctl_oid *oidp, void *arg1, __unused int arg2, struct sysctl_req *req)
 421 {
 422         uint64_t        mask = (uint64_t) (uintptr_t) arg1;
 423         boolean_t       is_capable = (_get_cpu_capabilities() & mask) != 0;
 424
 425         return SYSCTL_OUT(req, &is_capable, sizeof(is_capable));
 426
 427 }
 428
 429 SYSCTL_PROC(_hw_optional, OID_AUTO, mmx,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMMX, 0, sysctl_cpu_capability, "I", "");
 430 SYSCTL_PROC(_hw_optional, OID_AUTO, sse,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE, 0, sysctl_cpu_capability, "I", "");
 431 SYSCTL_PROC(_hw_optional, OID_AUTO, sse2,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE2, 0, sysctl_cpu_capability, "I", "");
 432 SYSCTL_PROC(_hw_optional, OID_AUTO, sse3,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE3, 0, sysctl_cpu_capability, "I", "");
 433 SYSCTL_PROC(_hw_optional, OID_AUTO, supplementalsse3,   CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSupplementalSSE3, 0, sysctl_cpu_capability, "I", "");
 434 SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_1,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_1, 0, sysctl_cpu_capability, "I", "");
 435 SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_2,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_2, 0, sysctl_cpu_capability, "I", "");
 436 /* "x86_64" is actually a preprocessor symbol on the x86_64 kernel, so we have to hack this */
 437 #undef x86_64
 438 SYSCTL_PROC(_hw_optional, OID_AUTO, x86_64,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) k64Bit, 0, sysctl_cpu_capability, "I", "");
 439 SYSCTL_PROC(_hw_optional, OID_AUTO, aes,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAES, 0, sysctl_cpu_capability, "I", "");
 440 SYSCTL_PROC(_hw_optional, OID_AUTO, avx1_0,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX1_0, 0, sysctl_cpu_capability, "I", "");
 441 SYSCTL_PROC(_hw_optional, OID_AUTO, rdrand,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRDRAND, 0, sysctl_cpu_capability, "I", "");
 442 SYSCTL_PROC(_hw_optional, OID_AUTO, f16c,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasF16C, 0, sysctl_cpu_capability, "I", "");
 443 SYSCTL_PROC(_hw_optional, OID_AUTO, enfstrg,    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasENFSTRG, 0, sysctl_cpu_capability, "I", "");
 444 SYSCTL_PROC(_hw_optional, OID_AUTO, fma,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasFMA, 0, sysctl_cpu_capability, "I", "");
 445 SYSCTL_PROC(_hw_optional, OID_AUTO, avx2_0,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX2_0, 0, sysctl_cpu_capability, "I", "");
 446 SYSCTL_PROC(_hw_optional, OID_AUTO, bmi1,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI1, 0, sysctl_cpu_capability, "I", "");
 447 SYSCTL_PROC(_hw_optional, OID_AUTO, bmi2,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI2, 0, sysctl_cpu_capability, "I", "");
 448 SYSCTL_PROC(_hw_optional, OID_AUTO, rtm,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRTM, 0, sysctl_cpu_capability, "I", "");
 449 SYSCTL_PROC(_hw_optional, OID_AUTO, hle,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasHLE, 0, sysctl_cpu_capability, "I", "");
 450 #else
 451 #error Unsupported arch
 452 #endif /* !__i386__ && !__x86_64 && !__arm__ && ! __arm64__ */
 453
 454
 455 /******************************************************************************
 456  * Generic MIB initialisation.
 457  *
 458  * This is a hack, and should be replaced with SYSINITs
 459  * at some point.
 460  */
 461 void
 462 sysctl_mib_init(void)
 463 {
 464         cputype = cpu_type();
 465         cpusubtype = cpu_subtype();
 466         cputhreadtype = cpu_threadtype();
 467 #if defined(__i386__) || defined (__x86_64__)
 468         cpu64bit = (_get_cpu_capabilities() & k64Bit) == k64Bit;
 469 #else
 470 #error Unsupported arch
 471 #endif
 472
 473         /*
 474          * Populate the optional portion of the hw.* MIB.
 475          *
 476          * XXX This could be broken out into parts of the code
 477          *     that actually directly relate to the functions in
 478          *     question.
 479          */
 480
 481         if (cputhreadtype != CPU_THREADTYPE_NONE) {
 482                 sysctl_register_oid(&sysctl__hw_cputhreadtype);
 483         }
 484
 485 #if defined (__i386__) || defined (__x86_64__)
 486         /* hw.cpufamily */
 487         cpufamily = cpuid_cpufamily();
 488
 489         /* hw.cacheconfig */
 490         cacheconfig[0] = ml_cpu_cache_sharing(0);
 491         cacheconfig[1] = ml_cpu_cache_sharing(1);
 492         cacheconfig[2] = ml_cpu_cache_sharing(2);
 493         cacheconfig[3] = ml_cpu_cache_sharing(3);
 494         cacheconfig[4] = 0;
 495
 496         /* hw.cachesize */
 497         cachesize[0] = ml_cpu_cache_size(0);
 498         cachesize[1] = ml_cpu_cache_size(1);
 499         cachesize[2] = ml_cpu_cache_size(2);
 500         cachesize[3] = ml_cpu_cache_size(3);
 501         cachesize[4] = 0;
 502
 503         /* hw.packages */
 504         packages = roundup(ml_cpu_cache_sharing(0), cpuid_info()->thread_count)
 505                         / cpuid_info()->thread_count;
 506
 507 #else
 508 #error unknown architecture
 509 #endif /* !__i386__ && !__x86_64 && !__arm__ && !__arm64__ */
 510
 511 }