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