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 <vm/vm_protos.h>
 102 #include <mach/host_info.h>
 103 #include <kern/pms.h>
 104
 105 extern vm_map_t bsd_pageable_map;
 106
 107 #include <sys/mount_internal.h>
 108 #include <sys/kdebug.h>
 109
 110 #include <IOKit/IOPlatformExpert.h>
 111 #include <pexpert/pexpert.h>
 112
 113 #include <machine/machine_routines.h>
 114 #include <machine/cpu_capabilities.h>
 115
 116 #include <mach/mach_host.h>             /* for host_info() */
 117
 118 #if defined(__i386__) || defined(__x86_64__)
 119 #include <i386/cpuid.h> /* for cpuid_info() */
 120 #endif
 121
 122
 123
 124 #ifndef MAX
 125 #define MAX(a,b) (a >= b ? a : b)
 126 #endif
 127
 128 /* XXX This should be in a BSD accessible Mach header, but isn't. */
 129 extern unsigned int vm_page_wire_count;
 130
 131 static int      cputype, cpusubtype, cputhreadtype, cpufamily, cpu64bit;
 132 static uint64_t cacheconfig[10], cachesize[10];
 133 static int      packages;
 134
 135 SYSCTL_NODE(, 0,          sysctl, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 136         "Sysctl internal magic");
 137 SYSCTL_NODE(, CTL_KERN,   kern,   CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 138         "High kernel, proc, limits &c");
 139 SYSCTL_NODE(, CTL_VM,     vm,     CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 140         "Virtual memory");
 141 SYSCTL_NODE(, CTL_VFS,    vfs,     CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 142         "File system");
 143 SYSCTL_NODE(, CTL_NET,    net,    CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 144         "Network, (see socket.h)");
 145 SYSCTL_NODE(, CTL_DEBUG,  debug,  CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 146         "Debugging");
 147 SYSCTL_NODE(, CTL_HW,     hw,     CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 148         "hardware");
 149 SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 150         "machine dependent");
 151 SYSCTL_NODE(, CTL_USER,   user,   CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 152         "user-level");
 153
 154 #define SYSCTL_RETURN(r, x)     SYSCTL_OUT(r, &x, sizeof(x))
 155
 156 /******************************************************************************
 157  * hw.* MIB
 158  */
 159
 160 #define CTLHW_RETQUAD   (1 << 31)
 161 #define CTLHW_LOCAL     (1 << 30)
 162
 163 #define HW_LOCAL_CPUTHREADTYPE  (1 | CTLHW_LOCAL)
 164 #define HW_LOCAL_PHYSICALCPU    (2 | CTLHW_LOCAL)
 165 #define HW_LOCAL_PHYSICALCPUMAX (3 | CTLHW_LOCAL)
 166 #define HW_LOCAL_LOGICALCPU     (4 | CTLHW_LOCAL)
 167 #define HW_LOCAL_LOGICALCPUMAX  (5 | CTLHW_LOCAL)
 168
 169
 170 /*
 171  * Supporting some variables requires us to do "real" work.  We
 172  * gather some of that here.
 173  */
 174 static int
 175 sysctl_hw_generic(__unused struct sysctl_oid *oidp, __unused void *arg1,
 176         int arg2, struct sysctl_req *req)
 177 {
 178         char dummy[65];
 179         int  epochTemp;
 180         ml_cpu_info_t cpu_info;
 181         int val, doquad;
 182         long long qval;
 183         host_basic_info_data_t hinfo;
 184         kern_return_t kret;
 185         mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
 186
 187         /*
 188          * Test and mask off the 'return quad' flag.
 189          * Note that only some things here support it.
 190          */
 191         doquad = arg2 & CTLHW_RETQUAD;
 192         arg2 &= ~CTLHW_RETQUAD;
 193
 194         ml_cpu_get_info(&cpu_info);
 195
 196 #define BSD_HOST 1
 197         kret = host_info((host_t)BSD_HOST, HOST_BASIC_INFO, (host_info_t)&hinfo, &count);
 198
 199         /*
 200          * Handle various OIDs.
 201          *
 202          * OIDs that can return int or quad set val and qval and then break.
 203          * Errors and int-only values return inline.
 204          */
 205         switch (arg2) {
 206         case HW_NCPU:
 207                 if (kret == KERN_SUCCESS) {
 208                         return(SYSCTL_RETURN(req, hinfo.max_cpus));
 209                 } else {
 210                         return(EINVAL);
 211                 }
 212         case HW_AVAILCPU:
 213                 if (kret == KERN_SUCCESS) {
 214                         return(SYSCTL_RETURN(req, hinfo.avail_cpus));
 215                 } else {
 216                         return(EINVAL);
 217                 }
 218         case HW_LOCAL_PHYSICALCPU:
 219                 if (kret == KERN_SUCCESS) {
 220                         return(SYSCTL_RETURN(req, hinfo.physical_cpu));
 221                 } else {
 222                         return(EINVAL);
 223                 }
 224         case HW_LOCAL_PHYSICALCPUMAX:
 225                 if (kret == KERN_SUCCESS) {
 226                         return(SYSCTL_RETURN(req, hinfo.physical_cpu_max));
 227                 } else {
 228                         return(EINVAL);
 229                 }
 230         case HW_LOCAL_LOGICALCPU:
 231                 if (kret == KERN_SUCCESS) {
 232                         return(SYSCTL_RETURN(req, hinfo.logical_cpu));
 233                 } else {
 234                         return(EINVAL);
 235                 }
 236         case HW_LOCAL_LOGICALCPUMAX:
 237                 if (kret == KERN_SUCCESS) {
 238                         return(SYSCTL_RETURN(req, hinfo.logical_cpu_max));
 239                 } else {
 240                         return(EINVAL);
 241                 }
 242         case HW_PAGESIZE:
 243         {
 244                 vm_map_t map = get_task_map(current_task());
 245                 val = vm_map_page_size(map);
 246                 qval = (long long)val;
 247                 break;
 248         }
 249         case HW_CACHELINE:
 250                 val = cpu_info.cache_line_size;
 251                 qval = (long long)val;
 252                 break;
 253         case HW_L1ICACHESIZE:
 254                 val = cpu_info.l1_icache_size;
 255                 qval = (long long)val;
 256                 break;
 257         case HW_L1DCACHESIZE:
 258                 val = cpu_info.l1_dcache_size;
 259                 qval = (long long)val;
 260                 break;
 261         case HW_L2CACHESIZE:
 262                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 263                         return(EINVAL);
 264                 val = cpu_info.l2_cache_size;
 265                 qval = (long long)val;
 266                 break;
 267         case HW_L3CACHESIZE:
 268                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 269                         return(EINVAL);
 270                 val = cpu_info.l3_cache_size;
 271                 qval = (long long)val;
 272                 break;
 273
 274                 /*
 275                  * Deprecated variables.  We still support these for
 276                  * backwards compatibility purposes only.
 277                  */
 278         case HW_MACHINE:
 279                 bzero(dummy, sizeof(dummy));
 280                 if(!PEGetMachineName(dummy,64))
 281                         return(EINVAL);
 282                 dummy[64] = 0;
 283                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 284         case HW_MODEL:
 285                 bzero(dummy, sizeof(dummy));
 286                 if(!PEGetModelName(dummy,64))
 287                         return(EINVAL);
 288                 dummy[64] = 0;
 289                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 290         case HW_USERMEM:
 291                 {
 292                 int usermem = mem_size - vm_page_wire_count * page_size;
 293
 294                         return(SYSCTL_RETURN(req, usermem));
 295                 }
 296         case HW_EPOCH:
 297                 epochTemp = PEGetPlatformEpoch();
 298                 if (epochTemp == -1)
 299                         return(EINVAL);
 300                 return(SYSCTL_RETURN(req, epochTemp));
 301         case HW_VECTORUNIT: {
 302                 int vector = cpu_info.vector_unit == 0? 0 : 1;
 303                 return(SYSCTL_RETURN(req, vector));
 304         }
 305         case HW_L2SETTINGS:
 306                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 307                         return(EINVAL);
 308                 return(SYSCTL_RETURN(req, cpu_info.l2_settings));
 309         case HW_L3SETTINGS:
 310                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 311                         return(EINVAL);
 312                 return(SYSCTL_RETURN(req, cpu_info.l3_settings));
 313         default:
 314                 return(ENOTSUP);
 315         }
 316         /*
 317          * Callers may come to us with either int or quad buffers.
 318          */
 319         if (doquad) {
 320                 return(SYSCTL_RETURN(req, qval));
 321         }
 322         return(SYSCTL_RETURN(req, val));
 323 }
 324
 325 /* hw.pagesize and hw.tbfrequency are expected as 64 bit values */
 326 static int
 327 sysctl_pagesize
 328 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 329 {
 330         vm_map_t map = get_task_map(current_task());
 331         long long l = vm_map_page_size(map);
 332         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 333 }
 334
 335 static int
 336 sysctl_pagesize32
 337 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 338 {
 339         long long l;
 340         l = (long long) PAGE_SIZE;
 341         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 342 }
 343
 344 static int
 345 sysctl_tbfrequency
 346 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 347 {
 348         long long l = gPEClockFrequencyInfo.timebase_frequency_hz;
 349         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 350 }
 351
 352 /*
 353  * hw.* MIB variables.
 354  */
 355 SYSCTL_PROC    (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_NCPU, sysctl_hw_generic, "I", "");
 356 SYSCTL_PROC    (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
 357 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
 358 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
 359 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
 360 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
 361 SYSCTL_INT     (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, BYTE_ORDER, "");
 362 SYSCTL_INT     (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputype, 0, "");
 363 SYSCTL_INT     (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpusubtype, 0, "");
 364 SYSCTL_INT     (_hw, OID_AUTO, cpu64bit_capable, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpu64bit, 0, "");
 365 SYSCTL_INT     (_hw, OID_AUTO, cpufamily, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpufamily, 0, "");
 366 SYSCTL_OPAQUE  (_hw, OID_AUTO, cacheconfig, CTLFLAG_RD | CTLFLAG_LOCKED, &cacheconfig, sizeof(cacheconfig), "Q", "");
 367 SYSCTL_OPAQUE  (_hw, OID_AUTO, cachesize, CTLFLAG_RD | CTLFLAG_LOCKED, &cachesize, sizeof(cachesize), "Q", "");
 368 SYSCTL_PROC        (_hw, OID_AUTO, pagesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize, "Q", "");
 369 SYSCTL_PROC        (_hw, OID_AUTO, pagesize32, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize32, "Q", "");
 370 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_hz, "");
 371 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
 372 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
 373 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
 374 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
 375 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
 376 SYSCTL_PROC    (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 377 SYSCTL_PROC    (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 378 SYSCTL_PROC    (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 379 SYSCTL_PROC    (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 380 SYSCTL_PROC    (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 381 SYSCTL_PROC(_hw, OID_AUTO, tbfrequency, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_tbfrequency, "Q", "");
 382 SYSCTL_QUAD    (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &max_mem, "");
 383 SYSCTL_INT     (_hw, OID_AUTO, packages, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &packages, 0, "");
 384
 385 /*
 386  * Optional features can register nodes below hw.optional.
 387  *
 388  * If the feature is not present, the node should either not be registered,
 389  * or it should return -1.  If the feature is present, the node should return
 390  * 0.  If the feature is present and its use is advised, the node should
 391  * return 1.
 392  */
 393 SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW|CTLFLAG_LOCKED, NULL, "optional features");
 394
 395 SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, 1, "");      /* always set */
 396
 397 /*
 398  * Deprecated variables.  These are supported for backwards compatibility
 399  * purposes only.  The MASKED flag requests that the variables not be
 400  * printed by sysctl(8) and similar utilities.
 401  *
 402  * The variables named *_compat here are int-sized versions of variables
 403  * that are now exported as quads.  The int-sized versions are normally
 404  * looked up only by number, wheras the quad-sized versions should be
 405  * looked up by name.
 406  *
 407  * The *_compat nodes are *NOT* visible within the kernel.
 408  */
 409 SYSCTL_PROC(_hw, HW_PAGESIZE,     pagesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_PAGESIZE, sysctl_hw_generic, "I", "");
 410 SYSCTL_COMPAT_INT (_hw, HW_BUS_FREQ,     busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
 411 SYSCTL_COMPAT_INT (_hw, HW_CPU_FREQ,     cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
 412 SYSCTL_PROC(_hw, HW_CACHELINE,    cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
 413 SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
 414 SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
 415 SYSCTL_PROC(_hw, HW_L2CACHESIZE,  l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
 416 SYSCTL_PROC(_hw, HW_L3CACHESIZE,  l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
 417 SYSCTL_COMPAT_INT (_hw, HW_TB_FREQ,      tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
 418 SYSCTL_PROC(_hw, HW_MACHINE,      machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
 419 SYSCTL_PROC(_hw, HW_MODEL,        model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
 420 SYSCTL_COMPAT_UINT(_hw, HW_PHYSMEM,      physmem, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &mem_size, 0, "");
 421 SYSCTL_PROC(_hw, HW_USERMEM,      usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_USERMEM,   sysctl_hw_generic, "I", "");
 422 SYSCTL_PROC(_hw, HW_EPOCH,        epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
 423 SYSCTL_PROC(_hw, HW_VECTORUNIT,   vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
 424 SYSCTL_PROC(_hw, HW_L2SETTINGS,   l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
 425 SYSCTL_PROC(_hw, HW_L3SETTINGS,   l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
 426 SYSCTL_INT (_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputhreadtype, 0, "");
 427
 428 #if defined(__i386__) || defined(__x86_64__)
 429 static int
 430 sysctl_cpu_capability
 431 (__unused struct sysctl_oid *oidp, void *arg1, __unused int arg2, struct sysctl_req *req)
 432 {
 433         uint64_t        mask = (uint64_t) (uintptr_t) arg1;
 434         boolean_t       is_capable = (_get_cpu_capabilities() & mask) != 0;
 435
 436         return SYSCTL_OUT(req, &is_capable, sizeof(is_capable));
 437
 438 }
 439
 440 SYSCTL_PROC(_hw_optional, OID_AUTO, mmx,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMMX, 0, sysctl_cpu_capability, "I", "");
 441 SYSCTL_PROC(_hw_optional, OID_AUTO, sse,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE, 0, sysctl_cpu_capability, "I", "");
 442 SYSCTL_PROC(_hw_optional, OID_AUTO, sse2,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE2, 0, sysctl_cpu_capability, "I", "");
 443 SYSCTL_PROC(_hw_optional, OID_AUTO, sse3,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE3, 0, sysctl_cpu_capability, "I", "");
 444 SYSCTL_PROC(_hw_optional, OID_AUTO, supplementalsse3,   CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSupplementalSSE3, 0, sysctl_cpu_capability, "I", "");
 445 SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_1,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_1, 0, sysctl_cpu_capability, "I", "");
 446 SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_2,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_2, 0, sysctl_cpu_capability, "I", "");
 447 /* "x86_64" is actually a preprocessor symbol on the x86_64 kernel, so we have to hack this */
 448 #undef x86_64
 449 SYSCTL_PROC(_hw_optional, OID_AUTO, x86_64,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) k64Bit, 0, sysctl_cpu_capability, "I", "");
 450 SYSCTL_PROC(_hw_optional, OID_AUTO, aes,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAES, 0, sysctl_cpu_capability, "I", "");
 451 SYSCTL_PROC(_hw_optional, OID_AUTO, avx1_0,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX1_0, 0, sysctl_cpu_capability, "I", "");
 452 SYSCTL_PROC(_hw_optional, OID_AUTO, rdrand,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRDRAND, 0, sysctl_cpu_capability, "I", "");
 453 SYSCTL_PROC(_hw_optional, OID_AUTO, f16c,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasF16C, 0, sysctl_cpu_capability, "I", "");
 454 SYSCTL_PROC(_hw_optional, OID_AUTO, enfstrg,    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasENFSTRG, 0, sysctl_cpu_capability, "I", "");
 455 SYSCTL_PROC(_hw_optional, OID_AUTO, fma,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasFMA, 0, sysctl_cpu_capability, "I", "");
 456 SYSCTL_PROC(_hw_optional, OID_AUTO, avx2_0,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX2_0, 0, sysctl_cpu_capability, "I", "");
 457 SYSCTL_PROC(_hw_optional, OID_AUTO, bmi1,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI1, 0, sysctl_cpu_capability, "I", "");
 458 SYSCTL_PROC(_hw_optional, OID_AUTO, bmi2,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI2, 0, sysctl_cpu_capability, "I", "");
 459 SYSCTL_PROC(_hw_optional, OID_AUTO, rtm,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRTM, 0, sysctl_cpu_capability, "I", "");
 460 SYSCTL_PROC(_hw_optional, OID_AUTO, hle,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasHLE, 0, sysctl_cpu_capability, "I", "");
 461 SYSCTL_PROC(_hw_optional, OID_AUTO, adx,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasADX, 0, sysctl_cpu_capability, "I", "");
 462 SYSCTL_PROC(_hw_optional, OID_AUTO, mpx,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMPX, 0, sysctl_cpu_capability, "I", "");
 463 SYSCTL_PROC(_hw_optional, OID_AUTO, sgx,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSGX, 0, sysctl_cpu_capability, "I", "");
 464 #else
 465 #error Unsupported arch
 466 #endif /* !__i386__ && !__x86_64 && !__arm__ && ! __arm64__ */
 467
 468
 469 /******************************************************************************
 470  * Generic MIB initialisation.
 471  *
 472  * This is a hack, and should be replaced with SYSINITs
 473  * at some point.
 474  */
 475 void
 476 sysctl_mib_init(void)
 477 {
 478         cputype = cpu_type();
 479         cpusubtype = cpu_subtype();
 480         cputhreadtype = cpu_threadtype();
 481 #if defined(__i386__) || defined (__x86_64__)
 482         cpu64bit = (_get_cpu_capabilities() & k64Bit) == k64Bit;
 483 #else
 484 #error Unsupported arch
 485 #endif
 486
 487         /*
 488          * Populate the optional portion of the hw.* MIB.
 489          *
 490          * XXX This could be broken out into parts of the code
 491          *     that actually directly relate to the functions in
 492          *     question.
 493          */
 494
 495         if (cputhreadtype != CPU_THREADTYPE_NONE) {
 496                 sysctl_register_oid(&sysctl__hw_cputhreadtype);
 497         }
 498
 499 #if defined (__i386__) || defined (__x86_64__)
 500         /* hw.cpufamily */
 501         cpufamily = cpuid_cpufamily();
 502
 503         /* hw.cacheconfig */
 504         cacheconfig[0] = ml_cpu_cache_sharing(0);
 505         cacheconfig[1] = ml_cpu_cache_sharing(1);
 506         cacheconfig[2] = ml_cpu_cache_sharing(2);
 507         cacheconfig[3] = ml_cpu_cache_sharing(3);
 508         cacheconfig[4] = 0;
 509
 510         /* hw.cachesize */
 511         cachesize[0] = ml_cpu_cache_size(0);
 512         cachesize[1] = ml_cpu_cache_size(1);
 513         cachesize[2] = ml_cpu_cache_size(2);
 514         cachesize[3] = ml_cpu_cache_size(3);
 515         cachesize[4] = 0;
 516
 517         /* hw.packages */
 518         packages = roundup(ml_cpu_cache_sharing(0), cpuid_info()->thread_count)
 519                         / cpuid_info()->thread_count;
 520
 521 #else
 522 #error unknown architecture
 523 #endif /* !__i386__ && !__x86_64 && !__arm__ && !__arm64__ */
 524
 525 }