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 #if defined(__arm__) || defined(__arm64__)
 123 #include <arm/cpuid.h>          /* for cpuid_info() & cache_info() */
 124 #endif
 125
 126
 127 #ifndef MAX
 128 #define MAX(a, b) (a >= b ? a : b)
 129 #endif
 130
 131 /* XXX This should be in a BSD accessible Mach header, but isn't. */
 132 extern unsigned int vm_page_wire_count;
 133
 134 static int      cputype, cpusubtype, cputhreadtype, cpufamily, cpu64bit;
 135 static uint64_t cacheconfig[10], cachesize[10];
 136 static int      packages;
 137
 138 SYSCTL_NODE(, 0, sysctl, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
 139     "Sysctl internal magic");
 140 SYSCTL_NODE(, CTL_KERN, kern, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
 141     "High kernel, proc, limits &c");
 142 SYSCTL_NODE(, CTL_VM, vm, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
 143     "Virtual memory");
 144 SYSCTL_NODE(, CTL_VFS, vfs, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
 145     "File system");
 146 SYSCTL_NODE(, CTL_NET, net, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
 147     "Network, (see socket.h)");
 148 SYSCTL_NODE(, CTL_DEBUG, debug, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
 149     "Debugging");
 150 SYSCTL_NODE(, CTL_HW, hw, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
 151     "hardware");
 152 SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
 153     "machine dependent");
 154 SYSCTL_NODE(, CTL_USER, user, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
 155     "user-level");
 156
 157 SYSCTL_NODE(_kern, OID_AUTO, bridge, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
 158     "bridge");
 159
 160 #define SYSCTL_RETURN(r, x)     SYSCTL_OUT(r, &x, sizeof(x))
 161
 162 /******************************************************************************
 163  * hw.* MIB
 164  */
 165
 166 #define CTLHW_RETQUAD   (1 << 31)
 167 #define CTLHW_LOCAL     (1 << 30)
 168
 169 #define HW_LOCAL_CPUTHREADTYPE  (1 | CTLHW_LOCAL)
 170 #define HW_LOCAL_PHYSICALCPU    (2 | CTLHW_LOCAL)
 171 #define HW_LOCAL_PHYSICALCPUMAX (3 | CTLHW_LOCAL)
 172 #define HW_LOCAL_LOGICALCPU     (4 | CTLHW_LOCAL)
 173 #define HW_LOCAL_LOGICALCPUMAX  (5 | CTLHW_LOCAL)
 174
 175
 176 /*
 177  * Supporting some variables requires us to do "real" work.  We
 178  * gather some of that here.
 179  */
 180 static int
 181 sysctl_hw_generic(__unused struct sysctl_oid *oidp, __unused void *arg1,
 182     int arg2, struct sysctl_req *req)
 183 {
 184         char dummy[65];
 185         int  epochTemp;
 186         ml_cpu_info_t cpu_info;
 187         int val, doquad;
 188         long long qval;
 189         host_basic_info_data_t hinfo;
 190         kern_return_t kret;
 191         mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
 192
 193         /*
 194          * Test and mask off the 'return quad' flag.
 195          * Note that only some things here support it.
 196          */
 197         doquad = arg2 & CTLHW_RETQUAD;
 198         arg2 &= ~CTLHW_RETQUAD;
 199
 200         ml_cpu_get_info(&cpu_info);
 201
 202 #define BSD_HOST 1
 203         kret = host_info((host_t)BSD_HOST, HOST_BASIC_INFO, (host_info_t)&hinfo, &count);
 204
 205         /*
 206          * Handle various OIDs.
 207          *
 208          * OIDs that can return int or quad set val and qval and then break.
 209          * Errors and int-only values return inline.
 210          */
 211         switch (arg2) {
 212         case HW_NCPU:
 213                 if (kret == KERN_SUCCESS) {
 214                         return SYSCTL_RETURN(req, hinfo.max_cpus);
 215                 } else {
 216                         return EINVAL;
 217                 }
 218         case HW_AVAILCPU:
 219                 if (kret == KERN_SUCCESS) {
 220                         return SYSCTL_RETURN(req, hinfo.avail_cpus);
 221                 } else {
 222                         return EINVAL;
 223                 }
 224         case HW_LOCAL_PHYSICALCPU:
 225                 if (kret == KERN_SUCCESS) {
 226                         return SYSCTL_RETURN(req, hinfo.physical_cpu);
 227                 } else {
 228                         return EINVAL;
 229                 }
 230         case HW_LOCAL_PHYSICALCPUMAX:
 231                 if (kret == KERN_SUCCESS) {
 232                         return SYSCTL_RETURN(req, hinfo.physical_cpu_max);
 233                 } else {
 234                         return EINVAL;
 235                 }
 236         case HW_LOCAL_LOGICALCPU:
 237                 if (kret == KERN_SUCCESS) {
 238                         return SYSCTL_RETURN(req, hinfo.logical_cpu);
 239                 } else {
 240                         return EINVAL;
 241                 }
 242         case HW_LOCAL_LOGICALCPUMAX:
 243                 if (kret == KERN_SUCCESS) {
 244                         return SYSCTL_RETURN(req, hinfo.logical_cpu_max);
 245                 } else {
 246                         return EINVAL;
 247                 }
 248         case HW_PAGESIZE:
 249         {
 250                 vm_map_t map = get_task_map(current_task());
 251                 val = vm_map_page_size(map);
 252                 qval = (long long)val;
 253                 break;
 254         }
 255         case HW_CACHELINE:
 256                 val = cpu_info.cache_line_size;
 257                 qval = (long long)val;
 258                 break;
 259         case HW_L1ICACHESIZE:
 260                 val = cpu_info.l1_icache_size;
 261                 qval = (long long)val;
 262                 break;
 263         case HW_L1DCACHESIZE:
 264                 val = cpu_info.l1_dcache_size;
 265                 qval = (long long)val;
 266                 break;
 267         case HW_L2CACHESIZE:
 268                 if (cpu_info.l2_cache_size == 0xFFFFFFFF) {
 269                         return EINVAL;
 270                 }
 271                 val = cpu_info.l2_cache_size;
 272                 qval = (long long)val;
 273                 break;
 274         case HW_L3CACHESIZE:
 275                 if (cpu_info.l3_cache_size == 0xFFFFFFFF) {
 276                         return EINVAL;
 277                 }
 278                 val = cpu_info.l3_cache_size;
 279                 qval = (long long)val;
 280                 break;
 281
 282         /*
 283          * Deprecated variables.  We still support these for
 284          * backwards compatibility purposes only.
 285          */
 286         case HW_MACHINE:
 287                 bzero(dummy, sizeof(dummy));
 288                 if (!PEGetMachineName(dummy, 64)) {
 289                         return EINVAL;
 290                 }
 291                 dummy[64] = 0;
 292                 return SYSCTL_OUT(req, dummy, strlen(dummy) + 1);
 293         case HW_MODEL:
 294                 bzero(dummy, sizeof(dummy));
 295                 if (!PEGetModelName(dummy, 64)) {
 296                         return EINVAL;
 297                 }
 298                 dummy[64] = 0;
 299                 return SYSCTL_OUT(req, dummy, strlen(dummy) + 1);
 300         case HW_USERMEM:
 301         {
 302                 int usermem = mem_size - vm_page_wire_count * page_size;
 303
 304                 return SYSCTL_RETURN(req, usermem);
 305         }
 306         case HW_EPOCH:
 307                 epochTemp = PEGetPlatformEpoch();
 308                 if (epochTemp == -1) {
 309                         return EINVAL;
 310                 }
 311                 return SYSCTL_RETURN(req, epochTemp);
 312         case HW_VECTORUNIT: {
 313                 int vector = cpu_info.vector_unit == 0? 0 : 1;
 314                 return SYSCTL_RETURN(req, vector);
 315         }
 316         case HW_L2SETTINGS:
 317                 if (cpu_info.l2_cache_size == 0xFFFFFFFF) {
 318                         return EINVAL;
 319                 }
 320                 return SYSCTL_RETURN(req, cpu_info.l2_settings);
 321         case HW_L3SETTINGS:
 322                 if (cpu_info.l3_cache_size == 0xFFFFFFFF) {
 323                         return EINVAL;
 324                 }
 325                 return SYSCTL_RETURN(req, cpu_info.l3_settings);
 326         default:
 327                 return ENOTSUP;
 328         }
 329         /*
 330          * Callers may come to us with either int or quad buffers.
 331          */
 332         if (doquad) {
 333                 return SYSCTL_RETURN(req, qval);
 334         }
 335         return SYSCTL_RETURN(req, val);
 336 }
 337
 338 /* hw.pagesize and hw.tbfrequency are expected as 64 bit values */
 339 static int
 340 sysctl_pagesize
 341 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 342 {
 343         vm_map_t map = get_task_map(current_task());
 344         long long l = vm_map_page_size(map);
 345         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 346 }
 347
 348 static int
 349 sysctl_pagesize32
 350 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 351 {
 352         long long l;
 353 #if __arm64__
 354         l = (long long) (1 << page_shift_user32);
 355 #else /* __arm64__ */
 356         l = (long long) PAGE_SIZE;
 357 #endif /* __arm64__ */
 358         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 359 }
 360
 361 static int
 362 sysctl_tbfrequency
 363 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 364 {
 365         long long l = gPEClockFrequencyInfo.timebase_frequency_hz;
 366         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 367 }
 368
 369 /*
 370  * hw.* MIB variables.
 371  */
 372 SYSCTL_PROC(_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_NCPU, sysctl_hw_generic, "I", "");
 373 SYSCTL_PROC(_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
 374 SYSCTL_PROC(_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
 375 SYSCTL_PROC(_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
 376 SYSCTL_PROC(_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
 377 SYSCTL_PROC(_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
 378 SYSCTL_INT(_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, BYTE_ORDER, "");
 379 SYSCTL_INT(_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputype, 0, "");
 380 SYSCTL_INT(_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpusubtype, 0, "");
 381 SYSCTL_INT(_hw, OID_AUTO, cpu64bit_capable, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpu64bit, 0, "");
 382 SYSCTL_INT(_hw, OID_AUTO, cpufamily, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpufamily, 0, "");
 383 SYSCTL_OPAQUE(_hw, OID_AUTO, cacheconfig, CTLFLAG_RD | CTLFLAG_LOCKED, &cacheconfig, sizeof(cacheconfig), "Q", "");
 384 SYSCTL_OPAQUE(_hw, OID_AUTO, cachesize, CTLFLAG_RD | CTLFLAG_LOCKED, &cachesize, sizeof(cachesize), "Q", "");
 385 SYSCTL_PROC(_hw, OID_AUTO, pagesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize, "Q", "");
 386 SYSCTL_PROC(_hw, OID_AUTO, pagesize32, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize32, "Q", "");
 387 #if DEBUG || DEVELOPMENT || (!defined(__arm__) && !defined(__arm64__))
 388 SYSCTL_QUAD(_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_hz, "");
 389 SYSCTL_QUAD(_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
 390 SYSCTL_QUAD(_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
 391 SYSCTL_QUAD(_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
 392 SYSCTL_QUAD(_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
 393 SYSCTL_QUAD(_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
 394 #endif
 395 SYSCTL_PROC(_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 396 SYSCTL_PROC(_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 397 SYSCTL_PROC(_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 398 SYSCTL_PROC(_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 399 SYSCTL_PROC(_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 400 #if (defined(__arm__) || defined(__arm64__)) && (DEBUG || DEVELOPMENT)
 401 SYSCTL_QUAD(_hw, OID_AUTO, memfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_hz, "");
 402 SYSCTL_QUAD(_hw, OID_AUTO, memfrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_min_hz, "");
 403 SYSCTL_QUAD(_hw, OID_AUTO, memfrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_max_hz, "");
 404 SYSCTL_QUAD(_hw, OID_AUTO, prffrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_hz, "");
 405 SYSCTL_QUAD(_hw, OID_AUTO, prffrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_min_hz, "");
 406 SYSCTL_QUAD(_hw, OID_AUTO, prffrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_max_hz, "");
 407 SYSCTL_QUAD(_hw, OID_AUTO, fixfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.fix_frequency_hz, "");
 408 #endif /* __arm__ || __arm64__ */
 409 SYSCTL_PROC(_hw, OID_AUTO, tbfrequency, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_tbfrequency, "Q", "");
 410 SYSCTL_QUAD(_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &max_mem, "");
 411 SYSCTL_INT(_hw, OID_AUTO, packages, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &packages, 0, "");
 412
 413 /*
 414  * Optional CPU features can register nodes below hw.optional.
 415  *
 416  * If the feature is not present, the node should either not be registered,
 417  * or it should return -1.  If the feature is present, the node should return
 418  * 0.  If the feature is present and its use is advised, the node should
 419  * return 1.
 420  */
 421 SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW | CTLFLAG_LOCKED, NULL, "optional features");
 422
 423 SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, 1, "");      /* always set */
 424
 425 /*
 426  * Optional device hardware features can be registered by drivers below hw.features
 427  */
 428 SYSCTL_NODE(_hw, OID_AUTO, features, CTLFLAG_RD | CTLFLAG_LOCKED, NULL, "hardware features");
 429
 430 /*
 431  * Deprecated variables.  These are supported for backwards compatibility
 432  * purposes only.  The MASKED flag requests that the variables not be
 433  * printed by sysctl(8) and similar utilities.
 434  *
 435  * The variables named *_compat here are int-sized versions of variables
 436  * that are now exported as quads.  The int-sized versions are normally
 437  * looked up only by number, wheras the quad-sized versions should be
 438  * looked up by name.
 439  *
 440  * The *_compat nodes are *NOT* visible within the kernel.
 441  */
 442 SYSCTL_PROC(_hw, HW_PAGESIZE, pagesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_PAGESIZE, sysctl_hw_generic, "I", "");
 443 #if DEBUG || DEVELOPMENT || (!defined(__arm__) && !defined(__arm64__))
 444 SYSCTL_COMPAT_INT(_hw, HW_BUS_FREQ, busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
 445 SYSCTL_COMPAT_INT(_hw, HW_CPU_FREQ, cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
 446 #endif
 447 SYSCTL_PROC(_hw, HW_CACHELINE, cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
 448 SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
 449 SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
 450 SYSCTL_PROC(_hw, HW_L2CACHESIZE, l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
 451 SYSCTL_PROC(_hw, HW_L3CACHESIZE, l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
 452 SYSCTL_COMPAT_INT(_hw, HW_TB_FREQ, tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
 453 SYSCTL_PROC(_hw, HW_MACHINE, machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
 454 SYSCTL_PROC(_hw, HW_MODEL, model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
 455 SYSCTL_COMPAT_UINT(_hw, HW_PHYSMEM, physmem, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &mem_size, 0, "");
 456 SYSCTL_PROC(_hw, HW_USERMEM, usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_USERMEM, sysctl_hw_generic, "I", "");
 457 SYSCTL_PROC(_hw, HW_EPOCH, epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
 458 SYSCTL_PROC(_hw, HW_VECTORUNIT, vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
 459 SYSCTL_PROC(_hw, HW_L2SETTINGS, l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
 460 SYSCTL_PROC(_hw, HW_L3SETTINGS, l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
 461 SYSCTL_INT(_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputhreadtype, 0, "");
 462
 463 #if defined(__i386__) || defined(__x86_64__)
 464 static int
 465 sysctl_cpu_capability
 466 (__unused struct sysctl_oid *oidp, void *arg1, __unused int arg2, struct sysctl_req *req)
 467 {
 468         uint64_t        mask = (uint64_t) (uintptr_t) arg1;
 469         boolean_t       is_capable = (_get_cpu_capabilities() & mask) != 0;
 470
 471         return SYSCTL_OUT(req, &is_capable, sizeof(is_capable));
 472 }
 473
 474 SYSCTL_PROC(_hw_optional, OID_AUTO, mmx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMMX, 0, sysctl_cpu_capability, "I", "");
 475 SYSCTL_PROC(_hw_optional, OID_AUTO, sse, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE, 0, sysctl_cpu_capability, "I", "");
 476 SYSCTL_PROC(_hw_optional, OID_AUTO, sse2, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE2, 0, sysctl_cpu_capability, "I", "");
 477 SYSCTL_PROC(_hw_optional, OID_AUTO, sse3, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE3, 0, sysctl_cpu_capability, "I", "");
 478 SYSCTL_PROC(_hw_optional, OID_AUTO, supplementalsse3, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSupplementalSSE3, 0, sysctl_cpu_capability, "I", "");
 479 SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_1, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_1, 0, sysctl_cpu_capability, "I", "");
 480 SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_2, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_2, 0, sysctl_cpu_capability, "I", "");
 481 /* "x86_64" is actually a preprocessor symbol on the x86_64 kernel, so we have to hack this */
 482 #undef x86_64
 483 SYSCTL_PROC(_hw_optional, OID_AUTO, x86_64, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) k64Bit, 0, sysctl_cpu_capability, "I", "");
 484 SYSCTL_PROC(_hw_optional, OID_AUTO, aes, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAES, 0, sysctl_cpu_capability, "I", "");
 485 SYSCTL_PROC(_hw_optional, OID_AUTO, avx1_0, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX1_0, 0, sysctl_cpu_capability, "I", "");
 486 SYSCTL_PROC(_hw_optional, OID_AUTO, rdrand, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRDRAND, 0, sysctl_cpu_capability, "I", "");
 487 SYSCTL_PROC(_hw_optional, OID_AUTO, f16c, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasF16C, 0, sysctl_cpu_capability, "I", "");
 488 SYSCTL_PROC(_hw_optional, OID_AUTO, enfstrg, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasENFSTRG, 0, sysctl_cpu_capability, "I", "");
 489 SYSCTL_PROC(_hw_optional, OID_AUTO, fma, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasFMA, 0, sysctl_cpu_capability, "I", "");
 490 SYSCTL_PROC(_hw_optional, OID_AUTO, avx2_0, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX2_0, 0, sysctl_cpu_capability, "I", "");
 491 SYSCTL_PROC(_hw_optional, OID_AUTO, bmi1, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI1, 0, sysctl_cpu_capability, "I", "");
 492 SYSCTL_PROC(_hw_optional, OID_AUTO, bmi2, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI2, 0, sysctl_cpu_capability, "I", "");
 493 SYSCTL_PROC(_hw_optional, OID_AUTO, rtm, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRTM, 0, sysctl_cpu_capability, "I", "");
 494 SYSCTL_PROC(_hw_optional, OID_AUTO, hle, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasHLE, 0, sysctl_cpu_capability, "I", "");
 495 SYSCTL_PROC(_hw_optional, OID_AUTO, adx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasADX, 0, sysctl_cpu_capability, "I", "");
 496 SYSCTL_PROC(_hw_optional, OID_AUTO, mpx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMPX, 0, sysctl_cpu_capability, "I", "");
 497 SYSCTL_PROC(_hw_optional, OID_AUTO, sgx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSGX, 0, sysctl_cpu_capability, "I", "");
 498 #if !defined(RC_HIDE_XNU_J137)
 499 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512f, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512F, 0, sysctl_cpu_capability, "I", "");
 500 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512cd, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512CD, 0, sysctl_cpu_capability, "I", "");
 501 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512dq, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512DQ, 0, sysctl_cpu_capability, "I", "");
 502 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512bw, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512BW, 0, sysctl_cpu_capability, "I", "");
 503 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512vl, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512VL, 0, sysctl_cpu_capability, "I", "");
 504 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512ifma, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512IFMA, 0, sysctl_cpu_capability, "I", "");
 505 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512vbmi, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512VBMI, 0, sysctl_cpu_capability, "I", "");
 506 #endif /* not RC_HIDE_XNU_J137 */
 507 #elif defined (__arm__) || defined (__arm64__)
 508 int watchpoint_flag = -1;
 509 int breakpoint_flag = -1;
 510 int gNeon = -1;
 511 int gNeonHpfp = -1;
 512 int gNeonFp16 = -1;
 513 int gARMv81Atomics = 0;
 514 int gARMv8Crc32 = 0;
 515
 516 #if defined (__arm__)
 517 int arm64_flag = 0;
 518 #elif defined (__arm64__) /* end __arm__*/
 519 int arm64_flag = 1;
 520 #else /* end __arm64__*/
 521 int arm64_flag = -1;
 522 #endif
 523
 524 SYSCTL_INT(_hw_optional, OID_AUTO, watchpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &watchpoint_flag, 0, "");
 525 SYSCTL_INT(_hw_optional, OID_AUTO, breakpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &breakpoint_flag, 0, "");
 526 SYSCTL_INT(_hw_optional, OID_AUTO, neon, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gNeon, 0, "");
 527 SYSCTL_INT(_hw_optional, OID_AUTO, neon_hpfp, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gNeonHpfp, 0, "");
 528 SYSCTL_INT(_hw_optional, OID_AUTO, neon_fp16, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gNeonFp16, 0, "");
 529 SYSCTL_INT(_hw_optional, OID_AUTO, armv8_1_atomics, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gARMv81Atomics, 0, "");
 530 SYSCTL_INT(_hw_optional, OID_AUTO, armv8_crc32, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gARMv8Crc32, 0, "");
 531
 532 /*
 533  * Without this little ifdef dance, the preprocessor replaces "arm64" with "1",
 534  * leaving us with a less-than-helpful sysctl.hwoptional.1.
 535  */
 536 #ifdef arm64
 537 #undef arm64
 538 SYSCTL_INT(_hw_optional, OID_AUTO, arm64, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &arm64_flag, 0, "");
 539 #define arm64 1
 540 #else
 541 SYSCTL_INT(_hw_optional, OID_AUTO, arm64, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &arm64_flag, 0, "");
 542 #endif
 543
 544 #else
 545 #error Unsupported arch
 546 #endif /* !__i386__ && !__x86_64 && !__arm__ && ! __arm64__ */
 547
 548
 549 /******************************************************************************
 550  * Generic MIB initialisation.
 551  *
 552  * This is a hack, and should be replaced with SYSINITs
 553  * at some point.
 554  */
 555 void
 556 sysctl_mib_init(void)
 557 {
 558         cputype = cpu_type();
 559         cpusubtype = cpu_subtype();
 560         cputhreadtype = cpu_threadtype();
 561 #if defined(__i386__) || defined (__x86_64__)
 562         cpu64bit = (_get_cpu_capabilities() & k64Bit) == k64Bit;
 563 #elif defined(__arm__) || defined (__arm64__)
 564         cpu64bit = (cputype & CPU_ARCH_ABI64) == CPU_ARCH_ABI64;
 565 #else
 566 #error Unsupported arch
 567 #endif
 568
 569         /*
 570          * Populate the optional portion of the hw.* MIB.
 571          *
 572          * XXX This could be broken out into parts of the code
 573          *     that actually directly relate to the functions in
 574          *     question.
 575          */
 576
 577         if (cputhreadtype != CPU_THREADTYPE_NONE) {
 578                 sysctl_register_oid(&sysctl__hw_cputhreadtype);
 579         }
 580
 581 #if defined (__i386__) || defined (__x86_64__)
 582         /* hw.cpufamily */
 583         cpufamily = cpuid_cpufamily();
 584
 585         /* hw.cacheconfig */
 586         cacheconfig[0] = ml_cpu_cache_sharing(0);
 587         cacheconfig[1] = ml_cpu_cache_sharing(1);
 588         cacheconfig[2] = ml_cpu_cache_sharing(2);
 589         cacheconfig[3] = ml_cpu_cache_sharing(3);
 590         cacheconfig[4] = 0;
 591
 592         /* hw.cachesize */
 593         cachesize[0] = ml_cpu_cache_size(0);
 594         cachesize[1] = ml_cpu_cache_size(1);
 595         cachesize[2] = ml_cpu_cache_size(2);
 596         cachesize[3] = ml_cpu_cache_size(3);
 597         cachesize[4] = 0;
 598
 599         /* hw.packages */
 600         packages = roundup(ml_cpu_cache_sharing(0), cpuid_info()->thread_count)
 601             / cpuid_info()->thread_count;
 602
 603 #elif defined(__arm__) || defined(__arm64__) /* end __i386 */
 604
 605         cpufamily = cpuid_get_cpufamily();
 606
 607         watchpoint_flag = arm_debug_info()->num_watchpoint_pairs;
 608         breakpoint_flag = arm_debug_info()->num_breakpoint_pairs;
 609
 610         arm_mvfp_info_t *mvfp_info = arm_mvfp_info();
 611         gNeon = mvfp_info->neon;
 612         gNeonHpfp = mvfp_info->neon_hpfp;
 613         gNeonFp16 = mvfp_info->neon_fp16;
 614
 615         cacheconfig[0] = ml_get_max_cpus();
 616         cacheconfig[1] = 1;
 617         cacheconfig[2] = cache_info()->c_l2size ? 1:0;
 618         cacheconfig[3] = 0;
 619         cacheconfig[4] = 0;
 620         cacheconfig[5] = 0;
 621         cacheconfig[6] = 0;
 622
 623         cachesize[0] = ml_get_machine_mem();
 624         cachesize[1] = cache_info()->c_dsize; /* Using the DCache */
 625         cachesize[2] = cache_info()->c_l2size;
 626         cachesize[3] = 0;
 627         cachesize[4] = 0;
 628
 629         packages = 1;
 630 #else
 631 #error unknown architecture
 632 #endif /* !__i386__ && !__x86_64 && !__arm__ && !__arm64__ */
 633 }