osfmk/i386/cpuid.h

   1 /*
   2  * Copyright (c) 2000-2006 Apple Computer, 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  * @OSF_COPYRIGHT@
  30  */
  31
  32 /*
  33  * x86 CPU identification
  34  *
  35  */
  36
  37 #ifndef _MACHINE_CPUID_H_
  38 #define _MACHINE_CPUID_H_
  39
  40 #include <sys/appleapiopts.h>
  41
  42 #ifdef __APPLE_API_PRIVATE
  43
  44 #define CPUID_VID_INTEL         "GenuineIntel"
  45 #define CPUID_VID_AMD           "AuthenticAMD"
  46
  47 #define CPUID_VMM_ID_VMWARE             "VMwareVMware"
  48 #define CPUID_VMM_ID_PARALLELS  "Parallels\0\0\0"
  49
  50 #define CPUID_STRING_UNKNOWN    "Unknown CPU Typ"
  51
  52 #define _Bit(n)                 (1ULL << n)
  53 #define _HBit(n)                (1ULL << ((n)+32))
  54
  55 /*
  56  * The CPUID_FEATURE_XXX values define 64-bit values
  57  * returned in %ecx:%edx to a CPUID request with %eax of 1:
  58  */
  59 #define CPUID_FEATURE_FPU       _Bit(0)   /* Floating point unit on-chip */
  60 #define CPUID_FEATURE_VME       _Bit(1)   /* Virtual Mode Extension */
  61 #define CPUID_FEATURE_DE        _Bit(2)   /* Debugging Extension */
  62 #define CPUID_FEATURE_PSE       _Bit(3)   /* Page Size Extension */
  63 #define CPUID_FEATURE_TSC       _Bit(4)   /* Time Stamp Counter */
  64 #define CPUID_FEATURE_MSR       _Bit(5)   /* Model Specific Registers */
  65 #define CPUID_FEATURE_PAE       _Bit(6)   /* Physical Address Extension */
  66 #define CPUID_FEATURE_MCE       _Bit(7)   /* Machine Check Exception */
  67 #define CPUID_FEATURE_CX8       _Bit(8)   /* CMPXCHG8B */
  68 #define CPUID_FEATURE_APIC      _Bit(9)   /* On-chip APIC */
  69 #define CPUID_FEATURE_SEP       _Bit(11)  /* Fast System Call */
  70 #define CPUID_FEATURE_MTRR      _Bit(12)  /* Memory Type Range Register */
  71 #define CPUID_FEATURE_PGE       _Bit(13)  /* Page Global Enable */
  72 #define CPUID_FEATURE_MCA       _Bit(14)  /* Machine Check Architecture */
  73 #define CPUID_FEATURE_CMOV      _Bit(15)  /* Conditional Move Instruction */
  74 #define CPUID_FEATURE_PAT       _Bit(16)  /* Page Attribute Table */
  75 #define CPUID_FEATURE_PSE36     _Bit(17)  /* 36-bit Page Size Extension */
  76 #define CPUID_FEATURE_PSN       _Bit(18)  /* Processor Serial Number */
  77 #define CPUID_FEATURE_CLFSH     _Bit(19)  /* CLFLUSH Instruction supported */
  78 #define CPUID_FEATURE_DS        _Bit(21)  /* Debug Store */
  79 #define CPUID_FEATURE_ACPI      _Bit(22)  /* Thermal monitor and Clock Ctrl */
  80 #define CPUID_FEATURE_MMX       _Bit(23)  /* MMX supported */
  81 #define CPUID_FEATURE_FXSR      _Bit(24)  /* Fast floating pt save/restore */
  82 #define CPUID_FEATURE_SSE       _Bit(25)  /* Streaming SIMD extensions */
  83 #define CPUID_FEATURE_SSE2      _Bit(26)  /* Streaming SIMD extensions 2 */
  84 #define CPUID_FEATURE_SS        _Bit(27)  /* Self-Snoop */
  85 #define CPUID_FEATURE_HTT       _Bit(28)  /* Hyper-Threading Technology */
  86 #define CPUID_FEATURE_TM        _Bit(29)  /* Thermal Monitor (TM1) */
  87 #define CPUID_FEATURE_PBE       _Bit(31)  /* Pend Break Enable */
  88
  89 #define CPUID_FEATURE_SSE3      _HBit(0)  /* Streaming SIMD extensions 3 */
  90 #define CPUID_FEATURE_PCLMULQDQ _HBit(1)  /* PCLMULQDQ instruction */
  91 #define CPUID_FEATURE_DTES64    _HBit(2)  /* 64-bit DS layout */
  92 #define CPUID_FEATURE_MONITOR   _HBit(3)  /* Monitor/mwait */
  93 #define CPUID_FEATURE_DSCPL     _HBit(4)  /* Debug Store CPL */
  94 #define CPUID_FEATURE_VMX       _HBit(5)  /* VMX */
  95 #define CPUID_FEATURE_SMX       _HBit(6)  /* SMX */
  96 #define CPUID_FEATURE_EST       _HBit(7)  /* Enhanced SpeedsTep (GV3) */
  97 #define CPUID_FEATURE_TM2       _HBit(8)  /* Thermal Monitor 2 */
  98 #define CPUID_FEATURE_SSSE3     _HBit(9)  /* Supplemental SSE3 instructions */
  99 #define CPUID_FEATURE_CID       _HBit(10) /* L1 Context ID */
 100 #define CPUID_FEATURE_SEGLIM64  _HBit(11) /* 64-bit segment limit checking */
 101 #define CPUID_FEATURE_FMA       _HBit(12) /* Fused-Multiply-Add support */
 102 #define CPUID_FEATURE_CX16      _HBit(13) /* CmpXchg16b instruction */
 103 #define CPUID_FEATURE_xTPR      _HBit(14) /* Send Task PRiority msgs */
 104 #define CPUID_FEATURE_PDCM      _HBit(15) /* Perf/Debug Capability MSR */
 105
 106 #define CPUID_FEATURE_PCID      _HBit(17) /* ASID-PCID support */
 107 #define CPUID_FEATURE_DCA       _HBit(18) /* Direct Cache Access */
 108 #define CPUID_FEATURE_SSE4_1    _HBit(19) /* Streaming SIMD extensions 4.1 */
 109 #define CPUID_FEATURE_SSE4_2    _HBit(20) /* Streaming SIMD extensions 4.2 */
 110 #define CPUID_FEATURE_x2APIC    _HBit(21) /* Extended APIC Mode */
 111 #define CPUID_FEATURE_MOVBE     _HBit(22) /* MOVBE instruction */
 112 #define CPUID_FEATURE_POPCNT    _HBit(23) /* POPCNT instruction */
 113 #define CPUID_FEATURE_TSCTMR    _HBit(24) /* TSC deadline timer */
 114 #define CPUID_FEATURE_AES       _HBit(25) /* AES instructions */
 115 #define CPUID_FEATURE_XSAVE     _HBit(26) /* XSAVE instructions */
 116 #define CPUID_FEATURE_OSXSAVE   _HBit(27) /* XGETBV/XSETBV instructions */
 117 #define CPUID_FEATURE_AVX1_0    _HBit(28) /* AVX 1.0 instructions */
 118 #define CPUID_FEATURE_F16C      _HBit(29) /* Float16 convert instructions */
 119 #define CPUID_FEATURE_RDRAND    _HBit(30) /* RDRAND instruction */
 120 #define CPUID_FEATURE_VMM       _HBit(31) /* VMM (Hypervisor) present */
 121
 122 /*
 123  * Leaf 7, subleaf 0 additional features.
 124  * Bits returned in %ebx to a CPUID request with {%eax,%ecx} of (0x7,0x0}:
 125  */
 126 #define CPUID_LEAF7_FEATURE_RDWRFSGS _Bit(0)    /* FS/GS base read/write */
 127 #define CPUID_LEAF7_FEATURE_TSCOFF   _Bit(1)    /* TSC thread offset */
 128 #define CPUID_LEAF7_FEATURE_BMI1     _Bit(3)    /* Bit Manipulation Instrs, set 1 */
 129 #define CPUID_LEAF7_FEATURE_HLE      _Bit(4)    /* Hardware Lock Elision*/
 130 #define CPUID_LEAF7_FEATURE_AVX2     _Bit(5)    /* AVX2 Instructions */
 131 #define CPUID_LEAF7_FEATURE_SMEP     _Bit(7)    /* Supervisor Mode Execute Protect */
 132 #define CPUID_LEAF7_FEATURE_BMI2     _Bit(8)    /* Bit Manipulation Instrs, set 2 */
 133 #define CPUID_LEAF7_FEATURE_ERMS     _Bit(9)    /* Enhanced Rep Movsb/Stosb */
 134 #define CPUID_LEAF7_FEATURE_INVPCID  _Bit(10)   /* INVPCID intruction, TDB */
 135 #define CPUID_LEAF7_FEATURE_RTM      _Bit(11)   /* TBD */
 136
 137 /*
 138  * The CPUID_EXTFEATURE_XXX values define 64-bit values
 139  * returned in %ecx:%edx to a CPUID request with %eax of 0x80000001:
 140  */
 141 #define CPUID_EXTFEATURE_SYSCALL   _Bit(11)     /* SYSCALL/sysret */
 142 #define CPUID_EXTFEATURE_XD        _Bit(20)     /* eXecute Disable */
 143
 144 #define CPUID_EXTFEATURE_1GBPAGE   _Bit(26)     /* 1GB pages */
 145 #define CPUID_EXTFEATURE_RDTSCP    _Bit(27)     /* RDTSCP */
 146 #define CPUID_EXTFEATURE_EM64T     _Bit(29)     /* Extended Mem 64 Technology */
 147
 148 #define CPUID_EXTFEATURE_LAHF      _HBit(0)     /* LAFH/SAHF instructions */
 149 #define CPUID_EXTFEATURE_LZCNT     _HBit(5)     /* LZCNT instruction */
 150 #define CPUID_EXTFEATURE_PREFETCHW _HBit(8)     /* PREFETCHW instruction */
 151
 152 /*
 153  * The CPUID_EXTFEATURE_XXX values define 64-bit values
 154  * returned in %ecx:%edx to a CPUID request with %eax of 0x80000007:
 155  */
 156 #define CPUID_EXTFEATURE_TSCI      _Bit(8)      /* TSC Invariant */
 157
 158 /*
 159  * CPUID_X86_64_H_FEATURE_SUBSET and CPUID_X86_64_H_LEAF7_FEATURE_SUBSET
 160  * indicate the bitmask of features that must be present before the system
 161  * is eligible to run the "x86_64h" "Haswell feature subset" slice.
 162  */
 163 #define CPUID_X86_64_H_FEATURE_SUBSET ( CPUID_FEATURE_FMA    | \
 164                                         CPUID_FEATURE_SSE4_2 | \
 165                                         CPUID_FEATURE_MOVBE  | \
 166                                         CPUID_FEATURE_POPCNT | \
 167                                         CPUID_FEATURE_AVX1_0   \
 168                                       )
 169
 170 #define CPUID_X86_64_H_EXTFEATURE_SUBSET ( CPUID_EXTFEATURE_LZCNT \
 171                                          )
 172
 173 #define CPUID_X86_64_H_LEAF7_FEATURE_SUBSET ( CPUID_LEAF7_FEATURE_BMI1 | \
 174                                               CPUID_LEAF7_FEATURE_AVX2 | \
 175                                               CPUID_LEAF7_FEATURE_BMI2   \
 176                                             )
 177
 178 #define CPUID_CACHE_SIZE        16      /* Number of descriptor values */
 179
 180 #define CPUID_MWAIT_EXTENSION   _Bit(0) /* enumeration of WMAIT extensions */
 181 #define CPUID_MWAIT_BREAK       _Bit(1) /* interrupts are break events     */
 182
 183 #define CPUID_MODEL_YONAH               0x0E
 184 #define CPUID_MODEL_MEROM               0x0F
 185 #define CPUID_MODEL_PENRYN              0x17
 186 #define CPUID_MODEL_NEHALEM             0x1A
 187 #define CPUID_MODEL_FIELDS              0x1E    /* Lynnfield, Clarksfield */
 188 #define CPUID_MODEL_DALES               0x1F    /* Havendale, Auburndale */
 189 #define CPUID_MODEL_NEHALEM_EX          0x2E
 190 #define CPUID_MODEL_DALES_32NM          0x25    /* Clarkdale, Arrandale */
 191 #define CPUID_MODEL_WESTMERE            0x2C    /* Gulftown, Westmere-EP/-WS */
 192 #define CPUID_MODEL_WESTMERE_EX         0x2F
 193 #define CPUID_MODEL_SANDYBRIDGE         0x2A
 194 #define CPUID_MODEL_JAKETOWN            0x2D
 195 #define CPUID_MODEL_IVYBRIDGE           0x3A
 196 #define CPUID_MODEL_IVYBRIDGE_EP        0x3E
 197 #define CPUID_MODEL_CRYSTALWELL         0x46
 198 #define CPUID_MODEL_HASWELL             0x3C
 199 #define CPUID_MODEL_HASWELL_SVR         0x3F
 200 #define CPUID_MODEL_HASWELL_ULT         0x45
 201
 202 #define CPUID_VMM_FAMILY_UNKNOWN        0x0
 203 #define CPUID_VMM_FAMILY_VMWARE         0x1
 204 #define CPUID_VMM_FAMILY_PARALLELS      0x2
 205
 206 #ifndef ASSEMBLER
 207 #include <stdint.h>
 208 #include <mach/mach_types.h>
 209 #include <kern/kern_types.h>
 210 #include <mach/machine.h>
 211
 212
 213 typedef enum { eax, ebx, ecx, edx } cpuid_register_t;
 214 static inline void
 215 cpuid(uint32_t *data)
 216 {
 217         __asm__ volatile ("cpuid"
 218                 : "=a" (data[eax]),
 219                   "=b" (data[ebx]),
 220                   "=c" (data[ecx]),
 221                   "=d" (data[edx])
 222                 : "a"  (data[eax]),
 223                   "b"  (data[ebx]),
 224                   "c"  (data[ecx]),
 225                   "d"  (data[edx]));
 226 }
 227
 228 static inline void
 229 do_cpuid(uint32_t selector, uint32_t *data)
 230 {
 231         __asm__ volatile ("cpuid"
 232                 : "=a" (data[0]),
 233                   "=b" (data[1]),
 234                   "=c" (data[2]),
 235                   "=d" (data[3])
 236                 : "a"(selector),
 237                   "b" (0),
 238                   "c" (0),
 239                   "d" (0));
 240 }
 241
 242 /*
 243  * Cache ID descriptor structure, used to parse CPUID leaf 2.
 244  * Note: not used in kernel.
 245  */
 246 typedef enum { Lnone, L1I, L1D, L2U, L3U, LCACHE_MAX } cache_type_t ;
 247 typedef struct {
 248         unsigned char   value;          /* Descriptor value */
 249         cache_type_t    type;           /* Cache type */
 250         unsigned int    size;           /* Cache size */
 251         unsigned int    linesize;       /* Cache line size */
 252 #ifdef KERNEL
 253         const char      *description;   /* Cache description */
 254 #endif /* KERNEL */
 255 } cpuid_cache_desc_t;
 256
 257 #ifdef KERNEL
 258 #define CACHE_DESC(value,type,size,linesize,text) \
 259         { value, type, size, linesize, text }
 260 #else
 261 #define CACHE_DESC(value,type,size,linesize,text) \
 262         { value, type, size, linesize }
 263 #endif /* KERNEL */
 264
 265 /* Monitor/mwait Leaf: */
 266 typedef struct {
 267         uint32_t        linesize_min;
 268         uint32_t        linesize_max;
 269         uint32_t        extensions;
 270         uint32_t        sub_Cstates;
 271 } cpuid_mwait_leaf_t;
 272
 273 /* Thermal and Power Management Leaf: */
 274 typedef struct {
 275         boolean_t       sensor;
 276         boolean_t       dynamic_acceleration;
 277         boolean_t       invariant_APIC_timer;
 278         boolean_t       core_power_limits;
 279         boolean_t       fine_grain_clock_mod;
 280         boolean_t       package_thermal_intr;
 281         uint32_t        thresholds;
 282         boolean_t       ACNT_MCNT;
 283         boolean_t       hardware_feedback;
 284         boolean_t       energy_policy;
 285 } cpuid_thermal_leaf_t;
 286
 287
 288 /* XSAVE Feature Leaf: */
 289 typedef struct {
 290         uint32_t        extended_state[4];      /* eax .. edx */
 291 } cpuid_xsave_leaf_t;
 292
 293
 294 /* Architectural Performance Monitoring Leaf: */
 295 typedef struct {
 296         uint8_t         version;
 297         uint8_t         number;
 298         uint8_t         width;
 299         uint8_t         events_number;
 300         uint32_t        events;
 301         uint8_t         fixed_number;
 302         uint8_t         fixed_width;
 303 } cpuid_arch_perf_leaf_t;
 304
 305 /* Physical CPU info - this is exported out of the kernel (kexts), so be wary of changes */
 306 typedef struct {
 307         char            cpuid_vendor[16];
 308         char            cpuid_brand_string[48];
 309         const char      *cpuid_model_string;
 310
 311         cpu_type_t      cpuid_type;     /* this is *not* a cpu_type_t in our <mach/machine.h> */
 312         uint8_t         cpuid_family;
 313         uint8_t         cpuid_model;
 314         uint8_t         cpuid_extmodel;
 315         uint8_t         cpuid_extfamily;
 316         uint8_t         cpuid_stepping;
 317         uint64_t        cpuid_features;
 318         uint64_t        cpuid_extfeatures;
 319         uint32_t        cpuid_signature;
 320         uint8_t         cpuid_brand;
 321         uint8_t         cpuid_processor_flag;
 322
 323         uint32_t        cache_size[LCACHE_MAX];
 324         uint32_t        cache_linesize;
 325
 326         uint8_t         cache_info[64];    /* list of cache descriptors */
 327
 328         uint32_t        cpuid_cores_per_package;
 329         uint32_t        cpuid_logical_per_package;
 330         uint32_t        cache_sharing[LCACHE_MAX];
 331         uint32_t        cache_partitions[LCACHE_MAX];
 332
 333         cpu_type_t      cpuid_cpu_type;                 /* <mach/machine.h> */
 334         cpu_subtype_t   cpuid_cpu_subtype;              /* <mach/machine.h> */
 335
 336         /* Per-vendor info */
 337         cpuid_mwait_leaf_t      cpuid_mwait_leaf;
 338 #define cpuid_mwait_linesize_max        cpuid_mwait_leaf.linesize_max
 339 #define cpuid_mwait_linesize_min        cpuid_mwait_leaf.linesize_min
 340 #define cpuid_mwait_extensions          cpuid_mwait_leaf.extensions
 341 #define cpuid_mwait_sub_Cstates         cpuid_mwait_leaf.sub_Cstates
 342         cpuid_thermal_leaf_t    cpuid_thermal_leaf;
 343         cpuid_arch_perf_leaf_t  cpuid_arch_perf_leaf;
 344         cpuid_xsave_leaf_t      cpuid_xsave_leaf;
 345
 346         /* Cache details: */
 347         uint32_t        cpuid_cache_linesize;
 348         uint32_t        cpuid_cache_L2_associativity;
 349         uint32_t        cpuid_cache_size;
 350
 351         /* Virtual and physical address aize: */
 352         uint32_t        cpuid_address_bits_physical;
 353         uint32_t        cpuid_address_bits_virtual;
 354
 355         uint32_t        cpuid_microcode_version;
 356
 357         /* Numbers of tlbs per processor [i|d, small|large, level0|level1] */
 358         uint32_t        cpuid_tlb[2][2][2];
 359                         #define TLB_INST        0
 360                         #define TLB_DATA        1
 361                         #define TLB_SMALL       0
 362                         #define TLB_LARGE       1
 363         uint32_t        cpuid_stlb;
 364
 365         uint32_t        core_count;
 366         uint32_t        thread_count;
 367
 368         /* Max leaf ids available from CPUID */
 369         uint32_t        cpuid_max_basic;
 370         uint32_t        cpuid_max_ext;
 371
 372         /* Family-specific info links */
 373         uint32_t                cpuid_cpufamily;
 374         cpuid_mwait_leaf_t      *cpuid_mwait_leafp;
 375         cpuid_thermal_leaf_t    *cpuid_thermal_leafp;
 376         cpuid_arch_perf_leaf_t  *cpuid_arch_perf_leafp;
 377         cpuid_xsave_leaf_t      *cpuid_xsave_leafp;
 378         uint32_t                cpuid_leaf7_features;
 379 } i386_cpu_info_t;
 380
 381 #ifdef MACH_KERNEL_PRIVATE
 382 typedef struct {
 383         char            cpuid_vmm_vendor[16];
 384         uint32_t        cpuid_vmm_family;
 385         uint32_t        cpuid_vmm_bus_frequency;
 386         uint32_t        cpuid_vmm_tsc_frequency;
 387 } i386_vmm_info_t;
 388 #endif
 389
 390 #ifdef __cplusplus
 391 extern "C" {
 392 #endif
 393
 394 /*
 395  * External declarations
 396  */
 397 extern cpu_type_t       cpuid_cputype(void);
 398 extern cpu_subtype_t    cpuid_cpusubtype(void);
 399 extern void             cpuid_cpu_display(const char *);
 400 extern void             cpuid_feature_display(const char *);
 401 extern void             cpuid_extfeature_display(const char *);
 402 extern char *           cpuid_get_feature_names(uint64_t, char *, unsigned);
 403 extern char *           cpuid_get_extfeature_names(uint64_t, char *, unsigned);
 404 extern char *           cpuid_get_leaf7_feature_names(uint64_t, char *, unsigned);
 405
 406 extern uint64_t         cpuid_features(void);
 407 extern uint64_t         cpuid_extfeatures(void);
 408 extern uint64_t         cpuid_leaf7_features(void);
 409 extern uint32_t         cpuid_family(void);
 410 extern uint32_t         cpuid_cpufamily(void);
 411
 412 extern i386_cpu_info_t  *cpuid_info(void);
 413 extern void             cpuid_set_info(void);
 414
 415 #ifdef MACH_KERNEL_PRIVATE
 416 extern boolean_t        cpuid_vmm_present(void);
 417 extern i386_vmm_info_t  *cpuid_vmm_info(void);
 418 extern uint32_t         cpuid_vmm_family(void);
 419 #endif
 420
 421 #ifdef __cplusplus
 422 }
 423 #endif
 424
 425 #endif /* ASSEMBLER */
 426
 427 #endif /* __APPLE_API_PRIVATE */
 428 #endif /* _MACHINE_CPUID_H_ */