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                 val = cpu_info.l2_cache_size;
 271                 qval = (long long)val;
 272                 break;
 273         case HW_L3CACHESIZE:
 274                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 275                         return(EINVAL);
 276                 val = cpu_info.l3_cache_size;
 277                 qval = (long long)val;
 278                 break;
 279
 280                 /*
 281                  * Deprecated variables.  We still support these for
 282                  * backwards compatibility purposes only.
 283                  */
 284         case HW_MACHINE:
 285                 bzero(dummy, sizeof(dummy));
 286                 if(!PEGetMachineName(dummy,64))
 287                         return(EINVAL);
 288                 dummy[64] = 0;
 289                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 290         case HW_MODEL:
 291                 bzero(dummy, sizeof(dummy));
 292                 if(!PEGetModelName(dummy,64))
 293                         return(EINVAL);
 294                 dummy[64] = 0;
 295                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 296         case HW_USERMEM:
 297                 {
 298                 int usermem = mem_size - vm_page_wire_count * page_size;
 299
 300                         return(SYSCTL_RETURN(req, usermem));
 301                 }
 302         case HW_EPOCH:
 303                 epochTemp = PEGetPlatformEpoch();
 304                 if (epochTemp == -1)
 305                         return(EINVAL);
 306                 return(SYSCTL_RETURN(req, epochTemp));
 307         case HW_VECTORUNIT: {
 308                 int vector = cpu_info.vector_unit == 0? 0 : 1;
 309                 return(SYSCTL_RETURN(req, vector));
 310         }
 311         case HW_L2SETTINGS:
 312                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 313                         return(EINVAL);
 314                 return(SYSCTL_RETURN(req, cpu_info.l2_settings));
 315         case HW_L3SETTINGS:
 316                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 317                         return(EINVAL);
 318                 return(SYSCTL_RETURN(req, cpu_info.l3_settings));
 319         default:
 320                 return(ENOTSUP);
 321         }
 322         /*
 323          * Callers may come to us with either int or quad buffers.
 324          */
 325         if (doquad) {
 326                 return(SYSCTL_RETURN(req, qval));
 327         }
 328         return(SYSCTL_RETURN(req, val));
 329 }
 330
 331 /* hw.pagesize and hw.tbfrequency are expected as 64 bit values */
 332 static int
 333 sysctl_pagesize
 334 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 335 {
 336         vm_map_t map = get_task_map(current_task());
 337         long long l = vm_map_page_size(map);
 338         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 339 }
 340
 341 static int
 342 sysctl_pagesize32
 343 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 344 {
 345         long long l;
 346 #if __arm64__
 347         l = (long long) (1 << page_shift_user32);
 348 #else /* __arm64__ */
 349         l = (long long) PAGE_SIZE;
 350 #endif /* __arm64__ */
 351         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 352 }
 353
 354 static int
 355 sysctl_tbfrequency
 356 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
 357 {
 358         long long l = gPEClockFrequencyInfo.timebase_frequency_hz;
 359         return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
 360 }
 361
 362 /*
 363  * hw.* MIB variables.
 364  */
 365 SYSCTL_PROC    (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_NCPU, sysctl_hw_generic, "I", "");
 366 SYSCTL_PROC    (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
 367 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
 368 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
 369 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
 370 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
 371 SYSCTL_INT     (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, BYTE_ORDER, "");
 372 SYSCTL_INT     (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputype, 0, "");
 373 SYSCTL_INT     (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpusubtype, 0, "");
 374 SYSCTL_INT     (_hw, OID_AUTO, cpu64bit_capable, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpu64bit, 0, "");
 375 SYSCTL_INT     (_hw, OID_AUTO, cpufamily, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpufamily, 0, "");
 376 SYSCTL_OPAQUE  (_hw, OID_AUTO, cacheconfig, CTLFLAG_RD | CTLFLAG_LOCKED, &cacheconfig, sizeof(cacheconfig), "Q", "");
 377 SYSCTL_OPAQUE  (_hw, OID_AUTO, cachesize, CTLFLAG_RD | CTLFLAG_LOCKED, &cachesize, sizeof(cachesize), "Q", "");
 378 SYSCTL_PROC        (_hw, OID_AUTO, pagesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize, "Q", "");
 379 SYSCTL_PROC        (_hw, OID_AUTO, pagesize32, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize32, "Q", "");
 380 #if DEBUG || DEVELOPMENT || (!defined(__arm__) && !defined(__arm64__))
 381 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_hz, "");
 382 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
 383 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
 384 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
 385 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
 386 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
 387 #endif
 388 SYSCTL_PROC    (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 389 SYSCTL_PROC    (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 390 SYSCTL_PROC    (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 391 SYSCTL_PROC    (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 392 SYSCTL_PROC    (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 393 #if (defined(__arm__) || defined(__arm64__)) && (DEBUG || DEVELOPMENT)
 394 SYSCTL_QUAD    (_hw, OID_AUTO, memfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_hz, "");
 395 SYSCTL_QUAD    (_hw, OID_AUTO, memfrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_min_hz, "");
 396 SYSCTL_QUAD    (_hw, OID_AUTO, memfrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_max_hz, "");
 397 SYSCTL_QUAD    (_hw, OID_AUTO, prffrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_hz, "");
 398 SYSCTL_QUAD    (_hw, OID_AUTO, prffrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_min_hz, "");
 399 SYSCTL_QUAD    (_hw, OID_AUTO, prffrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_max_hz, "");
 400 SYSCTL_QUAD    (_hw, OID_AUTO, fixfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.fix_frequency_hz, "");
 401 #endif /* __arm__ || __arm64__ */
 402 SYSCTL_PROC(_hw, OID_AUTO, tbfrequency, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_tbfrequency, "Q", "");
 403 SYSCTL_QUAD    (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &max_mem, "");
 404 SYSCTL_INT     (_hw, OID_AUTO, packages, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &packages, 0, "");
 405
 406 /*
 407  * Optional CPU features can register nodes below hw.optional.
 408  *
 409  * If the feature is not present, the node should either not be registered,
 410  * or it should return -1.  If the feature is present, the node should return
 411  * 0.  If the feature is present and its use is advised, the node should
 412  * return 1.
 413  */
 414 SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW|CTLFLAG_LOCKED, NULL, "optional features");
 415
 416 SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, 1, "");      /* always set */
 417
 418 /*
 419  * Optional device hardware features can be registered by drivers below hw.features
 420  */
 421 SYSCTL_NODE(_hw, OID_AUTO, features, CTLFLAG_RD | CTLFLAG_LOCKED, NULL, "hardware features");
 422
 423 /*
 424  * Deprecated variables.  These are supported for backwards compatibility
 425  * purposes only.  The MASKED flag requests that the variables not be
 426  * printed by sysctl(8) and similar utilities.
 427  *
 428  * The variables named *_compat here are int-sized versions of variables
 429  * that are now exported as quads.  The int-sized versions are normally
 430  * looked up only by number, wheras the quad-sized versions should be
 431  * looked up by name.
 432  *
 433  * The *_compat nodes are *NOT* visible within the kernel.
 434  */
 435 SYSCTL_PROC(_hw, HW_PAGESIZE,     pagesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_PAGESIZE, sysctl_hw_generic, "I", "");
 436 #if DEBUG || DEVELOPMENT || (!defined(__arm__) && !defined(__arm64__))
 437 SYSCTL_COMPAT_INT (_hw, HW_BUS_FREQ,     busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
 438 SYSCTL_COMPAT_INT (_hw, HW_CPU_FREQ,     cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
 439 #endif
 440 SYSCTL_PROC(_hw, HW_CACHELINE,    cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
 441 SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
 442 SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
 443 SYSCTL_PROC(_hw, HW_L2CACHESIZE,  l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
 444 SYSCTL_PROC(_hw, HW_L3CACHESIZE,  l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
 445 SYSCTL_COMPAT_INT (_hw, HW_TB_FREQ,      tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
 446 SYSCTL_PROC(_hw, HW_MACHINE,      machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
 447 SYSCTL_PROC(_hw, HW_MODEL,        model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
 448 SYSCTL_COMPAT_UINT(_hw, HW_PHYSMEM,      physmem, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &mem_size, 0, "");
 449 SYSCTL_PROC(_hw, HW_USERMEM,      usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_USERMEM,   sysctl_hw_generic, "I", "");
 450 SYSCTL_PROC(_hw, HW_EPOCH,        epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
 451 SYSCTL_PROC(_hw, HW_VECTORUNIT,   vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
 452 SYSCTL_PROC(_hw, HW_L2SETTINGS,   l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
 453 SYSCTL_PROC(_hw, HW_L3SETTINGS,   l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
 454 SYSCTL_INT (_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputhreadtype, 0, "");
 455
 456 #if defined(__i386__) || defined(__x86_64__)
 457 static int
 458 sysctl_cpu_capability
 459 (__unused struct sysctl_oid *oidp, void *arg1, __unused int arg2, struct sysctl_req *req)
 460 {
 461         uint64_t        mask = (uint64_t) (uintptr_t) arg1;
 462         boolean_t       is_capable = (_get_cpu_capabilities() & mask) != 0;
 463
 464         return SYSCTL_OUT(req, &is_capable, sizeof(is_capable));
 465
 466 }
 467
 468 SYSCTL_PROC(_hw_optional, OID_AUTO, mmx,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMMX, 0, sysctl_cpu_capability, "I", "");
 469 SYSCTL_PROC(_hw_optional, OID_AUTO, sse,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE, 0, sysctl_cpu_capability, "I", "");
 470 SYSCTL_PROC(_hw_optional, OID_AUTO, sse2,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE2, 0, sysctl_cpu_capability, "I", "");
 471 SYSCTL_PROC(_hw_optional, OID_AUTO, sse3,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE3, 0, sysctl_cpu_capability, "I", "");
 472 SYSCTL_PROC(_hw_optional, OID_AUTO, supplementalsse3,   CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSupplementalSSE3, 0, sysctl_cpu_capability, "I", "");
 473 SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_1,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_1, 0, sysctl_cpu_capability, "I", "");
 474 SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_2,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_2, 0, sysctl_cpu_capability, "I", "");
 475 /* "x86_64" is actually a preprocessor symbol on the x86_64 kernel, so we have to hack this */
 476 #undef x86_64
 477 SYSCTL_PROC(_hw_optional, OID_AUTO, x86_64,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) k64Bit, 0, sysctl_cpu_capability, "I", "");
 478 SYSCTL_PROC(_hw_optional, OID_AUTO, aes,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAES, 0, sysctl_cpu_capability, "I", "");
 479 SYSCTL_PROC(_hw_optional, OID_AUTO, avx1_0,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX1_0, 0, sysctl_cpu_capability, "I", "");
 480 SYSCTL_PROC(_hw_optional, OID_AUTO, rdrand,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRDRAND, 0, sysctl_cpu_capability, "I", "");
 481 SYSCTL_PROC(_hw_optional, OID_AUTO, f16c,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasF16C, 0, sysctl_cpu_capability, "I", "");
 482 SYSCTL_PROC(_hw_optional, OID_AUTO, enfstrg,    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasENFSTRG, 0, sysctl_cpu_capability, "I", "");
 483 SYSCTL_PROC(_hw_optional, OID_AUTO, fma,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasFMA, 0, sysctl_cpu_capability, "I", "");
 484 SYSCTL_PROC(_hw_optional, OID_AUTO, avx2_0,     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX2_0, 0, sysctl_cpu_capability, "I", "");
 485 SYSCTL_PROC(_hw_optional, OID_AUTO, bmi1,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI1, 0, sysctl_cpu_capability, "I", "");
 486 SYSCTL_PROC(_hw_optional, OID_AUTO, bmi2,       CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI2, 0, sysctl_cpu_capability, "I", "");
 487 SYSCTL_PROC(_hw_optional, OID_AUTO, rtm,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRTM, 0, sysctl_cpu_capability, "I", "");
 488 SYSCTL_PROC(_hw_optional, OID_AUTO, hle,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasHLE, 0, sysctl_cpu_capability, "I", "");
 489 SYSCTL_PROC(_hw_optional, OID_AUTO, adx,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasADX, 0, sysctl_cpu_capability, "I", "");
 490 SYSCTL_PROC(_hw_optional, OID_AUTO, mpx,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMPX, 0, sysctl_cpu_capability, "I", "");
 491 SYSCTL_PROC(_hw_optional, OID_AUTO, sgx,        CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSGX, 0, sysctl_cpu_capability, "I", "");
 492 #if !defined(RC_HIDE_XNU_J137)
 493 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512f,    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512F, 0, sysctl_cpu_capability, "I", "");
 494 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512cd,   CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512CD, 0, sysctl_cpu_capability, "I", "");
 495 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512dq,   CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512DQ, 0, sysctl_cpu_capability, "I", "");
 496 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512bw,   CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512BW, 0, sysctl_cpu_capability, "I", "");
 497 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512vl,   CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512VL, 0, sysctl_cpu_capability, "I", "");
 498 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512ifma, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512IFMA, 0, sysctl_cpu_capability, "I", "");
 499 SYSCTL_PROC(_hw_optional, OID_AUTO, avx512vbmi, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512VBMI, 0, sysctl_cpu_capability, "I", "");
 500 #endif /* not RC_HIDE_XNU_J137 */
 501 #elif defined (__arm__) || defined (__arm64__)
 502 int watchpoint_flag = -1;
 503 int breakpoint_flag = -1;
 504 int gNeon = -1;
 505 int gNeonHpfp = -1;
 506 int gARMv81Atomics = 0;
 507
 508 #if defined (__arm__)
 509 int arm64_flag = 0;
 510 #elif defined (__arm64__) /* end __arm__*/
 511 int arm64_flag = 1;
 512 #else /* end __arm64__*/
 513 int arm64_flag = -1;
 514 #endif
 515
 516 SYSCTL_INT(_hw_optional, OID_AUTO, watchpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &watchpoint_flag, 0, "");
 517 SYSCTL_INT(_hw_optional, OID_AUTO, breakpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &breakpoint_flag, 0, "");
 518 SYSCTL_INT(_hw_optional, OID_AUTO, neon, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gNeon, 0, "");
 519 SYSCTL_INT(_hw_optional, OID_AUTO, neon_hpfp, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gNeonHpfp, 0, "");
 520 SYSCTL_INT(_hw_optional, OID_AUTO, armv8_1_atomics, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gARMv81Atomics, 0, "");
 521
 522 /*
 523  * Without this little ifdef dance, the preprocessor replaces "arm64" with "1",
 524  * leaving us with a less-than-helpful sysctl.hwoptional.1.
 525  */
 526 #ifdef arm64
 527 #undef arm64
 528 SYSCTL_INT(_hw_optional, OID_AUTO, arm64, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &arm64_flag, 0, "");
 529 #define arm64 1
 530 #else
 531 SYSCTL_INT(_hw_optional, OID_AUTO, arm64, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &arm64_flag, 0, "");
 532 #endif
 533
 534 #else
 535 #error Unsupported arch
 536 #endif /* !__i386__ && !__x86_64 && !__arm__ && ! __arm64__ */
 537
 538
 539 /******************************************************************************
 540  * Generic MIB initialisation.
 541  *
 542  * This is a hack, and should be replaced with SYSINITs
 543  * at some point.
 544  */
 545 void
 546 sysctl_mib_init(void)
 547 {
 548         cputype = cpu_type();
 549         cpusubtype = cpu_subtype();
 550         cputhreadtype = cpu_threadtype();
 551 #if defined(__i386__) || defined (__x86_64__)
 552         cpu64bit = (_get_cpu_capabilities() & k64Bit) == k64Bit;
 553 #elif defined(__arm__) || defined (__arm64__)
 554         cpu64bit = (cputype & CPU_ARCH_ABI64) == CPU_ARCH_ABI64;
 555 #else
 556 #error Unsupported arch
 557 #endif
 558
 559         /*
 560          * Populate the optional portion of the hw.* MIB.
 561          *
 562          * XXX This could be broken out into parts of the code
 563          *     that actually directly relate to the functions in
 564          *     question.
 565          */
 566
 567         if (cputhreadtype != CPU_THREADTYPE_NONE) {
 568                 sysctl_register_oid(&sysctl__hw_cputhreadtype);
 569         }
 570
 571 #if defined (__i386__) || defined (__x86_64__)
 572         /* hw.cpufamily */
 573         cpufamily = cpuid_cpufamily();
 574
 575         /* hw.cacheconfig */
 576         cacheconfig[0] = ml_cpu_cache_sharing(0);
 577         cacheconfig[1] = ml_cpu_cache_sharing(1);
 578         cacheconfig[2] = ml_cpu_cache_sharing(2);
 579         cacheconfig[3] = ml_cpu_cache_sharing(3);
 580         cacheconfig[4] = 0;
 581
 582         /* hw.cachesize */
 583         cachesize[0] = ml_cpu_cache_size(0);
 584         cachesize[1] = ml_cpu_cache_size(1);
 585         cachesize[2] = ml_cpu_cache_size(2);
 586         cachesize[3] = ml_cpu_cache_size(3);
 587         cachesize[4] = 0;
 588
 589         /* hw.packages */
 590         packages = roundup(ml_cpu_cache_sharing(0), cpuid_info()->thread_count)
 591                         / cpuid_info()->thread_count;
 592
 593 #elif defined(__arm__) || defined(__arm64__) /* end __i386 */
 594
 595         cpufamily = cpuid_get_cpufamily();
 596
 597         watchpoint_flag = arm_debug_info()->num_watchpoint_pairs;
 598         breakpoint_flag = arm_debug_info()->num_breakpoint_pairs;
 599
 600         arm_mvfp_info_t *mvfp_info = arm_mvfp_info();
 601         gNeon = mvfp_info->neon;
 602         gNeonHpfp = mvfp_info->neon_hpfp;
 603
 604         cacheconfig[0] = ml_get_max_cpus();
 605         cacheconfig[1] = 1;
 606         cacheconfig[2] = cache_info()->c_l2size ? 1:0;
 607         cacheconfig[3] = 0;
 608         cacheconfig[4] = 0;
 609         cacheconfig[5] = 0;
 610         cacheconfig[6] = 0;
 611
 612         cachesize[0] = ml_get_machine_mem();
 613         cachesize[1] = cache_info()->c_dsize; /* Using the DCache */
 614         cachesize[2] = cache_info()->c_l2size;
 615         cachesize[3] = 0;
 616         cachesize[4] = 0;
 617
 618         packages = 1;
 619 #else
 620 #error unknown architecture
 621 #endif /* !__i386__ && !__x86_64 && !__arm__ && !__arm64__ */
 622
 623 }