bsd/dev/i386/sysctl.c

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30
  31 #include <string.h>
  32 #include <sys/param.h>
  33 #include <sys/kernel.h>
  34 #include <sys/sysctl.h>
  35 #include <i386/cpuid.h>
  36
  37 static int
  38 hw_cpu_sysctl SYSCTL_HANDLER_ARGS
  39 {
  40     __unused struct sysctl_oid *unused_oidp = oidp;
  41     i386_cpu_info_t *cpu_info = cpuid_info();
  42     void *ptr = (uint8_t *)cpu_info + (uint32_t)arg1;
  43     int value;
  44
  45     if (arg2 == -1) {
  46         ptr = *(char **)ptr;
  47         arg2 = 0;
  48     }
  49
  50     if (arg2 == 0 && ((char *)ptr)[0] == '\0') {
  51         return ENOENT;
  52     }
  53
  54     if (arg2 == sizeof(uint8_t)) {
  55         value = (uint32_t) *(uint8_t *)ptr;
  56         ptr = &value;
  57         arg2 = sizeof(uint32_t);
  58     }
  59     return SYSCTL_OUT(req, ptr, arg2 ? (size_t) arg2 : strlen((char *)ptr)+1);
  60 }
  61
  62 static int
  63 hw_cpu_features SYSCTL_HANDLER_ARGS
  64 {
  65     __unused struct sysctl_oid *unused_oidp = oidp;
  66     __unused void *unused_arg1 = arg1;
  67     __unused int unused_arg2 = arg2;
  68     char buf[256];
  69
  70     buf[0] = '\0';
  71     cpuid_get_feature_names(cpuid_features(), buf, sizeof(buf));
  72
  73     return SYSCTL_OUT(req, buf, strlen(buf) + 1);
  74 }
  75
  76 SYSCTL_NODE(_machdep, OID_AUTO, cpu, CTLFLAG_RW, 0,
  77         "CPU info");
  78
  79 SYSCTL_PROC(_machdep_cpu, OID_AUTO, vendor, CTLTYPE_STRING | CTLFLAG_RD,
  80             (void *)offsetof(i386_cpu_info_t, cpuid_vendor), 0,
  81             hw_cpu_sysctl, "A", "CPU vendor");
  82
  83 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand_string, CTLTYPE_STRING | CTLFLAG_RD,
  84             (void *)offsetof(i386_cpu_info_t, cpuid_brand_string), 0,
  85             hw_cpu_sysctl, "A", "CPU brand string");
  86
  87 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model_string, CTLTYPE_STRING | CTLFLAG_RD,
  88             (void *)offsetof(i386_cpu_info_t, cpuid_model_string), -1,
  89             hw_cpu_sysctl, "A", "CPU model string");
  90
  91 SYSCTL_PROC(_machdep_cpu, OID_AUTO, value, CTLTYPE_INT | CTLFLAG_RD,
  92             (void *)offsetof(i386_cpu_info_t, cpuid_value), sizeof(uint32_t),
  93             hw_cpu_sysctl, "I", "CPU value");
  94
  95 SYSCTL_PROC(_machdep_cpu, OID_AUTO, family, CTLTYPE_INT | CTLFLAG_RD,
  96             (void *)offsetof(i386_cpu_info_t, cpuid_family), sizeof(uint8_t),
  97             hw_cpu_sysctl, "I", "CPU family");
  98
  99 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model, CTLTYPE_INT | CTLFLAG_RD,
 100             (void *)offsetof(i386_cpu_info_t, cpuid_model), sizeof(uint8_t),
 101             hw_cpu_sysctl, "I", "CPU model");
 102
 103 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extmodel, CTLTYPE_INT | CTLFLAG_RD,
 104             (void *)offsetof(i386_cpu_info_t, cpuid_extmodel), sizeof(uint8_t),
 105             hw_cpu_sysctl, "I", "CPU extended model");
 106
 107 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extfamily, CTLTYPE_INT | CTLFLAG_RD,
 108             (void *)offsetof(i386_cpu_info_t, cpuid_extfamily), sizeof(uint8_t),
 109             hw_cpu_sysctl, "I", "CPU extended family");
 110
 111 SYSCTL_PROC(_machdep_cpu, OID_AUTO, stepping, CTLTYPE_INT | CTLFLAG_RD,
 112             (void *)offsetof(i386_cpu_info_t, cpuid_stepping), sizeof(uint8_t),
 113             hw_cpu_sysctl, "I", "CPU stepping");
 114
 115 SYSCTL_PROC(_machdep_cpu, OID_AUTO, feature_bits, CTLTYPE_INT | CTLFLAG_RD,
 116             (void *)offsetof(i386_cpu_info_t, cpuid_features), sizeof(uint32_t),
 117             hw_cpu_sysctl, "I", "CPU features");
 118
 119 SYSCTL_PROC(_machdep_cpu, OID_AUTO, signature, CTLTYPE_INT | CTLFLAG_RD,
 120             (void *)offsetof(i386_cpu_info_t, cpuid_signature), sizeof(uint32_t),
 121             hw_cpu_sysctl, "I", "CPU signature");
 122
 123 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand, CTLTYPE_INT | CTLFLAG_RD,
 124             (void *)offsetof(i386_cpu_info_t, cpuid_brand), sizeof(uint8_t),
 125             hw_cpu_sysctl, "I", "CPU brand");
 126
 127 SYSCTL_PROC(_machdep_cpu, OID_AUTO, features, CTLTYPE_STRING | CTLFLAG_RD,
 128             0, 0,
 129             hw_cpu_features, "A", "CPU feature names");
 130
 131
 132 struct sysctl_oid *machdep_sysctl_list[] =
 133 {
 134     &sysctl__machdep_cpu,
 135     &sysctl__machdep_cpu_vendor,
 136     &sysctl__machdep_cpu_brand_string,
 137     &sysctl__machdep_cpu_model_string,
 138     &sysctl__machdep_cpu_value,
 139     &sysctl__machdep_cpu_family,
 140     &sysctl__machdep_cpu_model,
 141     &sysctl__machdep_cpu_extmodel,
 142     &sysctl__machdep_cpu_extfamily,
 143     &sysctl__machdep_cpu_feature_bits,
 144     &sysctl__machdep_cpu_stepping,
 145     &sysctl__machdep_cpu_signature,
 146     &sysctl__machdep_cpu_brand,
 147     &sysctl__machdep_cpu_features,
 148     (struct sysctl_oid *) 0
 149 };
 150