root/arch/x86/include/asm/cpufeatures.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_X86_CPUFEATURES_H
   3 #define _ASM_X86_CPUFEATURES_H
   4 
   5 #ifndef _ASM_X86_REQUIRED_FEATURES_H
   6 #include <asm/required-features.h>
   7 #endif
   8 
   9 #ifndef _ASM_X86_DISABLED_FEATURES_H
  10 #include <asm/disabled-features.h>
  11 #endif
  12 
  13 /*
  14  * Defines x86 CPU feature bits
  15  */
  16 #define NCAPINTS                        19         /* N 32-bit words worth of info */
  17 #define NBUGINTS                        1          /* N 32-bit bug flags */
  18 
  19 /*
  20  * Note: If the comment begins with a quoted string, that string is used
  21  * in /proc/cpuinfo instead of the macro name.  If the string is "",
  22  * this feature bit is not displayed in /proc/cpuinfo at all.
  23  *
  24  * When adding new features here that depend on other features,
  25  * please update the table in kernel/cpu/cpuid-deps.c as well.
  26  */
  27 
  28 /* Intel-defined CPU features, CPUID level 0x00000001 (EDX), word 0 */
  29 #define X86_FEATURE_FPU                 ( 0*32+ 0) /* Onboard FPU */
  30 #define X86_FEATURE_VME                 ( 0*32+ 1) /* Virtual Mode Extensions */
  31 #define X86_FEATURE_DE                  ( 0*32+ 2) /* Debugging Extensions */
  32 #define X86_FEATURE_PSE                 ( 0*32+ 3) /* Page Size Extensions */
  33 #define X86_FEATURE_TSC                 ( 0*32+ 4) /* Time Stamp Counter */
  34 #define X86_FEATURE_MSR                 ( 0*32+ 5) /* Model-Specific Registers */
  35 #define X86_FEATURE_PAE                 ( 0*32+ 6) /* Physical Address Extensions */
  36 #define X86_FEATURE_MCE                 ( 0*32+ 7) /* Machine Check Exception */
  37 #define X86_FEATURE_CX8                 ( 0*32+ 8) /* CMPXCHG8 instruction */
  38 #define X86_FEATURE_APIC                ( 0*32+ 9) /* Onboard APIC */
  39 #define X86_FEATURE_SEP                 ( 0*32+11) /* SYSENTER/SYSEXIT */
  40 #define X86_FEATURE_MTRR                ( 0*32+12) /* Memory Type Range Registers */
  41 #define X86_FEATURE_PGE                 ( 0*32+13) /* Page Global Enable */
  42 #define X86_FEATURE_MCA                 ( 0*32+14) /* Machine Check Architecture */
  43 #define X86_FEATURE_CMOV                ( 0*32+15) /* CMOV instructions (plus FCMOVcc, FCOMI with FPU) */
  44 #define X86_FEATURE_PAT                 ( 0*32+16) /* Page Attribute Table */
  45 #define X86_FEATURE_PSE36               ( 0*32+17) /* 36-bit PSEs */
  46 #define X86_FEATURE_PN                  ( 0*32+18) /* Processor serial number */
  47 #define X86_FEATURE_CLFLUSH             ( 0*32+19) /* CLFLUSH instruction */
  48 #define X86_FEATURE_DS                  ( 0*32+21) /* "dts" Debug Store */
  49 #define X86_FEATURE_ACPI                ( 0*32+22) /* ACPI via MSR */
  50 #define X86_FEATURE_MMX                 ( 0*32+23) /* Multimedia Extensions */
  51 #define X86_FEATURE_FXSR                ( 0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */
  52 #define X86_FEATURE_XMM                 ( 0*32+25) /* "sse" */
  53 #define X86_FEATURE_XMM2                ( 0*32+26) /* "sse2" */
  54 #define X86_FEATURE_SELFSNOOP           ( 0*32+27) /* "ss" CPU self snoop */
  55 #define X86_FEATURE_HT                  ( 0*32+28) /* Hyper-Threading */
  56 #define X86_FEATURE_ACC                 ( 0*32+29) /* "tm" Automatic clock control */
  57 #define X86_FEATURE_IA64                ( 0*32+30) /* IA-64 processor */
  58 #define X86_FEATURE_PBE                 ( 0*32+31) /* Pending Break Enable */
  59 
  60 /* AMD-defined CPU features, CPUID level 0x80000001, word 1 */
  61 /* Don't duplicate feature flags which are redundant with Intel! */
  62 #define X86_FEATURE_SYSCALL             ( 1*32+11) /* SYSCALL/SYSRET */
  63 #define X86_FEATURE_MP                  ( 1*32+19) /* MP Capable */
  64 #define X86_FEATURE_NX                  ( 1*32+20) /* Execute Disable */
  65 #define X86_FEATURE_MMXEXT              ( 1*32+22) /* AMD MMX extensions */
  66 #define X86_FEATURE_FXSR_OPT            ( 1*32+25) /* FXSAVE/FXRSTOR optimizations */
  67 #define X86_FEATURE_GBPAGES             ( 1*32+26) /* "pdpe1gb" GB pages */
  68 #define X86_FEATURE_RDTSCP              ( 1*32+27) /* RDTSCP */
  69 #define X86_FEATURE_LM                  ( 1*32+29) /* Long Mode (x86-64, 64-bit support) */
  70 #define X86_FEATURE_3DNOWEXT            ( 1*32+30) /* AMD 3DNow extensions */
  71 #define X86_FEATURE_3DNOW               ( 1*32+31) /* 3DNow */
  72 
  73 /* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */
  74 #define X86_FEATURE_RECOVERY            ( 2*32+ 0) /* CPU in recovery mode */
  75 #define X86_FEATURE_LONGRUN             ( 2*32+ 1) /* Longrun power control */
  76 #define X86_FEATURE_LRTI                ( 2*32+ 3) /* LongRun table interface */
  77 
  78 /* Other features, Linux-defined mapping, word 3 */
  79 /* This range is used for feature bits which conflict or are synthesized */
  80 #define X86_FEATURE_CXMMX               ( 3*32+ 0) /* Cyrix MMX extensions */
  81 #define X86_FEATURE_K6_MTRR             ( 3*32+ 1) /* AMD K6 nonstandard MTRRs */
  82 #define X86_FEATURE_CYRIX_ARR           ( 3*32+ 2) /* Cyrix ARRs (= MTRRs) */
  83 #define X86_FEATURE_CENTAUR_MCR         ( 3*32+ 3) /* Centaur MCRs (= MTRRs) */
  84 
  85 /* CPU types for specific tunings: */
  86 #define X86_FEATURE_K8                  ( 3*32+ 4) /* "" Opteron, Athlon64 */
  87 #define X86_FEATURE_K7                  ( 3*32+ 5) /* "" Athlon */
  88 #define X86_FEATURE_P3                  ( 3*32+ 6) /* "" P3 */
  89 #define X86_FEATURE_P4                  ( 3*32+ 7) /* "" P4 */
  90 #define X86_FEATURE_CONSTANT_TSC        ( 3*32+ 8) /* TSC ticks at a constant rate */
  91 #define X86_FEATURE_UP                  ( 3*32+ 9) /* SMP kernel running on UP */
  92 #define X86_FEATURE_ART                 ( 3*32+10) /* Always running timer (ART) */
  93 #define X86_FEATURE_ARCH_PERFMON        ( 3*32+11) /* Intel Architectural PerfMon */
  94 #define X86_FEATURE_PEBS                ( 3*32+12) /* Precise-Event Based Sampling */
  95 #define X86_FEATURE_BTS                 ( 3*32+13) /* Branch Trace Store */
  96 #define X86_FEATURE_SYSCALL32           ( 3*32+14) /* "" syscall in IA32 userspace */
  97 #define X86_FEATURE_SYSENTER32          ( 3*32+15) /* "" sysenter in IA32 userspace */
  98 #define X86_FEATURE_REP_GOOD            ( 3*32+16) /* REP microcode works well */
  99 #define X86_FEATURE_LFENCE_RDTSC        ( 3*32+18) /* "" LFENCE synchronizes RDTSC */
 100 #define X86_FEATURE_ACC_POWER           ( 3*32+19) /* AMD Accumulated Power Mechanism */
 101 #define X86_FEATURE_NOPL                ( 3*32+20) /* The NOPL (0F 1F) instructions */
 102 #define X86_FEATURE_ALWAYS              ( 3*32+21) /* "" Always-present feature */
 103 #define X86_FEATURE_XTOPOLOGY           ( 3*32+22) /* CPU topology enum extensions */
 104 #define X86_FEATURE_TSC_RELIABLE        ( 3*32+23) /* TSC is known to be reliable */
 105 #define X86_FEATURE_NONSTOP_TSC         ( 3*32+24) /* TSC does not stop in C states */
 106 #define X86_FEATURE_CPUID               ( 3*32+25) /* CPU has CPUID instruction itself */
 107 #define X86_FEATURE_EXTD_APICID         ( 3*32+26) /* Extended APICID (8 bits) */
 108 #define X86_FEATURE_AMD_DCM             ( 3*32+27) /* AMD multi-node processor */
 109 #define X86_FEATURE_APERFMPERF          ( 3*32+28) /* P-State hardware coordination feedback capability (APERF/MPERF MSRs) */
 110 #define X86_FEATURE_NONSTOP_TSC_S3      ( 3*32+30) /* TSC doesn't stop in S3 state */
 111 #define X86_FEATURE_TSC_KNOWN_FREQ      ( 3*32+31) /* TSC has known frequency */
 112 
 113 /* Intel-defined CPU features, CPUID level 0x00000001 (ECX), word 4 */
 114 #define X86_FEATURE_XMM3                ( 4*32+ 0) /* "pni" SSE-3 */
 115 #define X86_FEATURE_PCLMULQDQ           ( 4*32+ 1) /* PCLMULQDQ instruction */
 116 #define X86_FEATURE_DTES64              ( 4*32+ 2) /* 64-bit Debug Store */
 117 #define X86_FEATURE_MWAIT               ( 4*32+ 3) /* "monitor" MONITOR/MWAIT support */
 118 #define X86_FEATURE_DSCPL               ( 4*32+ 4) /* "ds_cpl" CPL-qualified (filtered) Debug Store */
 119 #define X86_FEATURE_VMX                 ( 4*32+ 5) /* Hardware virtualization */
 120 #define X86_FEATURE_SMX                 ( 4*32+ 6) /* Safer Mode eXtensions */
 121 #define X86_FEATURE_EST                 ( 4*32+ 7) /* Enhanced SpeedStep */
 122 #define X86_FEATURE_TM2                 ( 4*32+ 8) /* Thermal Monitor 2 */
 123 #define X86_FEATURE_SSSE3               ( 4*32+ 9) /* Supplemental SSE-3 */
 124 #define X86_FEATURE_CID                 ( 4*32+10) /* Context ID */
 125 #define X86_FEATURE_SDBG                ( 4*32+11) /* Silicon Debug */
 126 #define X86_FEATURE_FMA                 ( 4*32+12) /* Fused multiply-add */
 127 #define X86_FEATURE_CX16                ( 4*32+13) /* CMPXCHG16B instruction */
 128 #define X86_FEATURE_XTPR                ( 4*32+14) /* Send Task Priority Messages */
 129 #define X86_FEATURE_PDCM                ( 4*32+15) /* Perf/Debug Capabilities MSR */
 130 #define X86_FEATURE_PCID                ( 4*32+17) /* Process Context Identifiers */
 131 #define X86_FEATURE_DCA                 ( 4*32+18) /* Direct Cache Access */
 132 #define X86_FEATURE_XMM4_1              ( 4*32+19) /* "sse4_1" SSE-4.1 */
 133 #define X86_FEATURE_XMM4_2              ( 4*32+20) /* "sse4_2" SSE-4.2 */
 134 #define X86_FEATURE_X2APIC              ( 4*32+21) /* X2APIC */
 135 #define X86_FEATURE_MOVBE               ( 4*32+22) /* MOVBE instruction */
 136 #define X86_FEATURE_POPCNT              ( 4*32+23) /* POPCNT instruction */
 137 #define X86_FEATURE_TSC_DEADLINE_TIMER  ( 4*32+24) /* TSC deadline timer */
 138 #define X86_FEATURE_AES                 ( 4*32+25) /* AES instructions */
 139 #define X86_FEATURE_XSAVE               ( 4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV instructions */
 140 #define X86_FEATURE_OSXSAVE             ( 4*32+27) /* "" XSAVE instruction enabled in the OS */
 141 #define X86_FEATURE_AVX                 ( 4*32+28) /* Advanced Vector Extensions */
 142 #define X86_FEATURE_F16C                ( 4*32+29) /* 16-bit FP conversions */
 143 #define X86_FEATURE_RDRAND              ( 4*32+30) /* RDRAND instruction */
 144 #define X86_FEATURE_HYPERVISOR          ( 4*32+31) /* Running on a hypervisor */
 145 
 146 /* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */
 147 #define X86_FEATURE_XSTORE              ( 5*32+ 2) /* "rng" RNG present (xstore) */
 148 #define X86_FEATURE_XSTORE_EN           ( 5*32+ 3) /* "rng_en" RNG enabled */
 149 #define X86_FEATURE_XCRYPT              ( 5*32+ 6) /* "ace" on-CPU crypto (xcrypt) */
 150 #define X86_FEATURE_XCRYPT_EN           ( 5*32+ 7) /* "ace_en" on-CPU crypto enabled */
 151 #define X86_FEATURE_ACE2                ( 5*32+ 8) /* Advanced Cryptography Engine v2 */
 152 #define X86_FEATURE_ACE2_EN             ( 5*32+ 9) /* ACE v2 enabled */
 153 #define X86_FEATURE_PHE                 ( 5*32+10) /* PadLock Hash Engine */
 154 #define X86_FEATURE_PHE_EN              ( 5*32+11) /* PHE enabled */
 155 #define X86_FEATURE_PMM                 ( 5*32+12) /* PadLock Montgomery Multiplier */
 156 #define X86_FEATURE_PMM_EN              ( 5*32+13) /* PMM enabled */
 157 
 158 /* More extended AMD flags: CPUID level 0x80000001, ECX, word 6 */
 159 #define X86_FEATURE_LAHF_LM             ( 6*32+ 0) /* LAHF/SAHF in long mode */
 160 #define X86_FEATURE_CMP_LEGACY          ( 6*32+ 1) /* If yes HyperThreading not valid */
 161 #define X86_FEATURE_SVM                 ( 6*32+ 2) /* Secure Virtual Machine */
 162 #define X86_FEATURE_EXTAPIC             ( 6*32+ 3) /* Extended APIC space */
 163 #define X86_FEATURE_CR8_LEGACY          ( 6*32+ 4) /* CR8 in 32-bit mode */
 164 #define X86_FEATURE_ABM                 ( 6*32+ 5) /* Advanced bit manipulation */
 165 #define X86_FEATURE_SSE4A               ( 6*32+ 6) /* SSE-4A */
 166 #define X86_FEATURE_MISALIGNSSE         ( 6*32+ 7) /* Misaligned SSE mode */
 167 #define X86_FEATURE_3DNOWPREFETCH       ( 6*32+ 8) /* 3DNow prefetch instructions */
 168 #define X86_FEATURE_OSVW                ( 6*32+ 9) /* OS Visible Workaround */
 169 #define X86_FEATURE_IBS                 ( 6*32+10) /* Instruction Based Sampling */
 170 #define X86_FEATURE_XOP                 ( 6*32+11) /* extended AVX instructions */
 171 #define X86_FEATURE_SKINIT              ( 6*32+12) /* SKINIT/STGI instructions */
 172 #define X86_FEATURE_WDT                 ( 6*32+13) /* Watchdog timer */
 173 #define X86_FEATURE_LWP                 ( 6*32+15) /* Light Weight Profiling */
 174 #define X86_FEATURE_FMA4                ( 6*32+16) /* 4 operands MAC instructions */
 175 #define X86_FEATURE_TCE                 ( 6*32+17) /* Translation Cache Extension */
 176 #define X86_FEATURE_NODEID_MSR          ( 6*32+19) /* NodeId MSR */
 177 #define X86_FEATURE_TBM                 ( 6*32+21) /* Trailing Bit Manipulations */
 178 #define X86_FEATURE_TOPOEXT             ( 6*32+22) /* Topology extensions CPUID leafs */
 179 #define X86_FEATURE_PERFCTR_CORE        ( 6*32+23) /* Core performance counter extensions */
 180 #define X86_FEATURE_PERFCTR_NB          ( 6*32+24) /* NB performance counter extensions */
 181 #define X86_FEATURE_BPEXT               ( 6*32+26) /* Data breakpoint extension */
 182 #define X86_FEATURE_PTSC                ( 6*32+27) /* Performance time-stamp counter */
 183 #define X86_FEATURE_PERFCTR_LLC         ( 6*32+28) /* Last Level Cache performance counter extensions */
 184 #define X86_FEATURE_MWAITX              ( 6*32+29) /* MWAIT extension (MONITORX/MWAITX instructions) */
 185 
 186 /*
 187  * Auxiliary flags: Linux defined - For features scattered in various
 188  * CPUID levels like 0x6, 0xA etc, word 7.
 189  *
 190  * Reuse free bits when adding new feature flags!
 191  */
 192 #define X86_FEATURE_RING3MWAIT          ( 7*32+ 0) /* Ring 3 MONITOR/MWAIT instructions */
 193 #define X86_FEATURE_CPUID_FAULT         ( 7*32+ 1) /* Intel CPUID faulting */
 194 #define X86_FEATURE_CPB                 ( 7*32+ 2) /* AMD Core Performance Boost */
 195 #define X86_FEATURE_EPB                 ( 7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */
 196 #define X86_FEATURE_CAT_L3              ( 7*32+ 4) /* Cache Allocation Technology L3 */
 197 #define X86_FEATURE_CAT_L2              ( 7*32+ 5) /* Cache Allocation Technology L2 */
 198 #define X86_FEATURE_CDP_L3              ( 7*32+ 6) /* Code and Data Prioritization L3 */
 199 #define X86_FEATURE_INVPCID_SINGLE      ( 7*32+ 7) /* Effectively INVPCID && CR4.PCIDE=1 */
 200 #define X86_FEATURE_HW_PSTATE           ( 7*32+ 8) /* AMD HW-PState */
 201 #define X86_FEATURE_PROC_FEEDBACK       ( 7*32+ 9) /* AMD ProcFeedbackInterface */
 202 #define X86_FEATURE_SME                 ( 7*32+10) /* AMD Secure Memory Encryption */
 203 #define X86_FEATURE_PTI                 ( 7*32+11) /* Kernel Page Table Isolation enabled */
 204 #define X86_FEATURE_RETPOLINE           ( 7*32+12) /* "" Generic Retpoline mitigation for Spectre variant 2 */
 205 #define X86_FEATURE_RETPOLINE_AMD       ( 7*32+13) /* "" AMD Retpoline mitigation for Spectre variant 2 */
 206 #define X86_FEATURE_INTEL_PPIN          ( 7*32+14) /* Intel Processor Inventory Number */
 207 #define X86_FEATURE_CDP_L2              ( 7*32+15) /* Code and Data Prioritization L2 */
 208 #define X86_FEATURE_MSR_SPEC_CTRL       ( 7*32+16) /* "" MSR SPEC_CTRL is implemented */
 209 #define X86_FEATURE_SSBD                ( 7*32+17) /* Speculative Store Bypass Disable */
 210 #define X86_FEATURE_MBA                 ( 7*32+18) /* Memory Bandwidth Allocation */
 211 #define X86_FEATURE_RSB_CTXSW           ( 7*32+19) /* "" Fill RSB on context switches */
 212 #define X86_FEATURE_SEV                 ( 7*32+20) /* AMD Secure Encrypted Virtualization */
 213 #define X86_FEATURE_USE_IBPB            ( 7*32+21) /* "" Indirect Branch Prediction Barrier enabled */
 214 #define X86_FEATURE_USE_IBRS_FW         ( 7*32+22) /* "" Use IBRS during runtime firmware calls */
 215 #define X86_FEATURE_SPEC_STORE_BYPASS_DISABLE   ( 7*32+23) /* "" Disable Speculative Store Bypass. */
 216 #define X86_FEATURE_LS_CFG_SSBD         ( 7*32+24)  /* "" AMD SSBD implementation via LS_CFG MSR */
 217 #define X86_FEATURE_IBRS                ( 7*32+25) /* Indirect Branch Restricted Speculation */
 218 #define X86_FEATURE_IBPB                ( 7*32+26) /* Indirect Branch Prediction Barrier */
 219 #define X86_FEATURE_STIBP               ( 7*32+27) /* Single Thread Indirect Branch Predictors */
 220 #define X86_FEATURE_ZEN                 ( 7*32+28) /* "" CPU is AMD family 0x17 (Zen) */
 221 #define X86_FEATURE_L1TF_PTEINV         ( 7*32+29) /* "" L1TF workaround PTE inversion */
 222 #define X86_FEATURE_IBRS_ENHANCED       ( 7*32+30) /* Enhanced IBRS */
 223 
 224 /* Virtualization flags: Linux defined, word 8 */
 225 #define X86_FEATURE_TPR_SHADOW          ( 8*32+ 0) /* Intel TPR Shadow */
 226 #define X86_FEATURE_VNMI                ( 8*32+ 1) /* Intel Virtual NMI */
 227 #define X86_FEATURE_FLEXPRIORITY        ( 8*32+ 2) /* Intel FlexPriority */
 228 #define X86_FEATURE_EPT                 ( 8*32+ 3) /* Intel Extended Page Table */
 229 #define X86_FEATURE_VPID                ( 8*32+ 4) /* Intel Virtual Processor ID */
 230 
 231 #define X86_FEATURE_VMMCALL             ( 8*32+15) /* Prefer VMMCALL to VMCALL */
 232 #define X86_FEATURE_XENPV               ( 8*32+16) /* "" Xen paravirtual guest */
 233 #define X86_FEATURE_EPT_AD              ( 8*32+17) /* Intel Extended Page Table access-dirty bit */
 234 #define X86_FEATURE_VMCALL              ( 8*32+18) /* "" Hypervisor supports the VMCALL instruction */
 235 #define X86_FEATURE_VMW_VMMCALL         ( 8*32+19) /* "" VMware prefers VMMCALL hypercall instruction */
 236 
 237 /* Intel-defined CPU features, CPUID level 0x00000007:0 (EBX), word 9 */
 238 #define X86_FEATURE_FSGSBASE            ( 9*32+ 0) /* RDFSBASE, WRFSBASE, RDGSBASE, WRGSBASE instructions*/
 239 #define X86_FEATURE_TSC_ADJUST          ( 9*32+ 1) /* TSC adjustment MSR 0x3B */
 240 #define X86_FEATURE_BMI1                ( 9*32+ 3) /* 1st group bit manipulation extensions */
 241 #define X86_FEATURE_HLE                 ( 9*32+ 4) /* Hardware Lock Elision */
 242 #define X86_FEATURE_AVX2                ( 9*32+ 5) /* AVX2 instructions */
 243 #define X86_FEATURE_FDP_EXCPTN_ONLY     ( 9*32+ 6) /* "" FPU data pointer updated only on x87 exceptions */
 244 #define X86_FEATURE_SMEP                ( 9*32+ 7) /* Supervisor Mode Execution Protection */
 245 #define X86_FEATURE_BMI2                ( 9*32+ 8) /* 2nd group bit manipulation extensions */
 246 #define X86_FEATURE_ERMS                ( 9*32+ 9) /* Enhanced REP MOVSB/STOSB instructions */
 247 #define X86_FEATURE_INVPCID             ( 9*32+10) /* Invalidate Processor Context ID */
 248 #define X86_FEATURE_RTM                 ( 9*32+11) /* Restricted Transactional Memory */
 249 #define X86_FEATURE_CQM                 ( 9*32+12) /* Cache QoS Monitoring */
 250 #define X86_FEATURE_ZERO_FCS_FDS        ( 9*32+13) /* "" Zero out FPU CS and FPU DS */
 251 #define X86_FEATURE_MPX                 ( 9*32+14) /* Memory Protection Extension */
 252 #define X86_FEATURE_RDT_A               ( 9*32+15) /* Resource Director Technology Allocation */
 253 #define X86_FEATURE_AVX512F             ( 9*32+16) /* AVX-512 Foundation */
 254 #define X86_FEATURE_AVX512DQ            ( 9*32+17) /* AVX-512 DQ (Double/Quad granular) Instructions */
 255 #define X86_FEATURE_RDSEED              ( 9*32+18) /* RDSEED instruction */
 256 #define X86_FEATURE_ADX                 ( 9*32+19) /* ADCX and ADOX instructions */
 257 #define X86_FEATURE_SMAP                ( 9*32+20) /* Supervisor Mode Access Prevention */
 258 #define X86_FEATURE_AVX512IFMA          ( 9*32+21) /* AVX-512 Integer Fused Multiply-Add instructions */
 259 #define X86_FEATURE_CLFLUSHOPT          ( 9*32+23) /* CLFLUSHOPT instruction */
 260 #define X86_FEATURE_CLWB                ( 9*32+24) /* CLWB instruction */
 261 #define X86_FEATURE_INTEL_PT            ( 9*32+25) /* Intel Processor Trace */
 262 #define X86_FEATURE_AVX512PF            ( 9*32+26) /* AVX-512 Prefetch */
 263 #define X86_FEATURE_AVX512ER            ( 9*32+27) /* AVX-512 Exponential and Reciprocal */
 264 #define X86_FEATURE_AVX512CD            ( 9*32+28) /* AVX-512 Conflict Detection */
 265 #define X86_FEATURE_SHA_NI              ( 9*32+29) /* SHA1/SHA256 Instruction Extensions */
 266 #define X86_FEATURE_AVX512BW            ( 9*32+30) /* AVX-512 BW (Byte/Word granular) Instructions */
 267 #define X86_FEATURE_AVX512VL            ( 9*32+31) /* AVX-512 VL (128/256 Vector Length) Extensions */
 268 
 269 /* Extended state features, CPUID level 0x0000000d:1 (EAX), word 10 */
 270 #define X86_FEATURE_XSAVEOPT            (10*32+ 0) /* XSAVEOPT instruction */
 271 #define X86_FEATURE_XSAVEC              (10*32+ 1) /* XSAVEC instruction */
 272 #define X86_FEATURE_XGETBV1             (10*32+ 2) /* XGETBV with ECX = 1 instruction */
 273 #define X86_FEATURE_XSAVES              (10*32+ 3) /* XSAVES/XRSTORS instructions */
 274 
 275 /*
 276  * Extended auxiliary flags: Linux defined - for features scattered in various
 277  * CPUID levels like 0xf, etc.
 278  *
 279  * Reuse free bits when adding new feature flags!
 280  */
 281 #define X86_FEATURE_CQM_LLC             (11*32+ 0) /* LLC QoS if 1 */
 282 #define X86_FEATURE_CQM_OCCUP_LLC       (11*32+ 1) /* LLC occupancy monitoring */
 283 #define X86_FEATURE_CQM_MBM_TOTAL       (11*32+ 2) /* LLC Total MBM monitoring */
 284 #define X86_FEATURE_CQM_MBM_LOCAL       (11*32+ 3) /* LLC Local MBM monitoring */
 285 #define X86_FEATURE_FENCE_SWAPGS_USER   (11*32+ 4) /* "" LFENCE in user entry SWAPGS path */
 286 #define X86_FEATURE_FENCE_SWAPGS_KERNEL (11*32+ 5) /* "" LFENCE in kernel entry SWAPGS path */
 287 
 288 /* Intel-defined CPU features, CPUID level 0x00000007:1 (EAX), word 12 */
 289 #define X86_FEATURE_AVX512_BF16         (12*32+ 5) /* AVX512 BFLOAT16 instructions */
 290 
 291 /* AMD-defined CPU features, CPUID level 0x80000008 (EBX), word 13 */
 292 #define X86_FEATURE_CLZERO              (13*32+ 0) /* CLZERO instruction */
 293 #define X86_FEATURE_IRPERF              (13*32+ 1) /* Instructions Retired Count */
 294 #define X86_FEATURE_XSAVEERPTR          (13*32+ 2) /* Always save/restore FP error pointers */
 295 #define X86_FEATURE_WBNOINVD            (13*32+ 9) /* WBNOINVD instruction */
 296 #define X86_FEATURE_AMD_IBPB            (13*32+12) /* "" Indirect Branch Prediction Barrier */
 297 #define X86_FEATURE_AMD_IBRS            (13*32+14) /* "" Indirect Branch Restricted Speculation */
 298 #define X86_FEATURE_AMD_STIBP           (13*32+15) /* "" Single Thread Indirect Branch Predictors */
 299 #define X86_FEATURE_AMD_STIBP_ALWAYS_ON (13*32+17) /* "" Single Thread Indirect Branch Predictors always-on preferred */
 300 #define X86_FEATURE_AMD_SSBD            (13*32+24) /* "" Speculative Store Bypass Disable */
 301 #define X86_FEATURE_VIRT_SSBD           (13*32+25) /* Virtualized Speculative Store Bypass Disable */
 302 #define X86_FEATURE_AMD_SSB_NO          (13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */
 303 
 304 /* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */
 305 #define X86_FEATURE_DTHERM              (14*32+ 0) /* Digital Thermal Sensor */
 306 #define X86_FEATURE_IDA                 (14*32+ 1) /* Intel Dynamic Acceleration */
 307 #define X86_FEATURE_ARAT                (14*32+ 2) /* Always Running APIC Timer */
 308 #define X86_FEATURE_PLN                 (14*32+ 4) /* Intel Power Limit Notification */
 309 #define X86_FEATURE_PTS                 (14*32+ 6) /* Intel Package Thermal Status */
 310 #define X86_FEATURE_HWP                 (14*32+ 7) /* Intel Hardware P-states */
 311 #define X86_FEATURE_HWP_NOTIFY          (14*32+ 8) /* HWP Notification */
 312 #define X86_FEATURE_HWP_ACT_WINDOW      (14*32+ 9) /* HWP Activity Window */
 313 #define X86_FEATURE_HWP_EPP             (14*32+10) /* HWP Energy Perf. Preference */
 314 #define X86_FEATURE_HWP_PKG_REQ         (14*32+11) /* HWP Package Level Request */
 315 
 316 /* AMD SVM Feature Identification, CPUID level 0x8000000a (EDX), word 15 */
 317 #define X86_FEATURE_NPT                 (15*32+ 0) /* Nested Page Table support */
 318 #define X86_FEATURE_LBRV                (15*32+ 1) /* LBR Virtualization support */
 319 #define X86_FEATURE_SVML                (15*32+ 2) /* "svm_lock" SVM locking MSR */
 320 #define X86_FEATURE_NRIPS               (15*32+ 3) /* "nrip_save" SVM next_rip save */
 321 #define X86_FEATURE_TSCRATEMSR          (15*32+ 4) /* "tsc_scale" TSC scaling support */
 322 #define X86_FEATURE_VMCBCLEAN           (15*32+ 5) /* "vmcb_clean" VMCB clean bits support */
 323 #define X86_FEATURE_FLUSHBYASID         (15*32+ 6) /* flush-by-ASID support */
 324 #define X86_FEATURE_DECODEASSISTS       (15*32+ 7) /* Decode Assists support */
 325 #define X86_FEATURE_PAUSEFILTER         (15*32+10) /* filtered pause intercept */
 326 #define X86_FEATURE_PFTHRESHOLD         (15*32+12) /* pause filter threshold */
 327 #define X86_FEATURE_AVIC                (15*32+13) /* Virtual Interrupt Controller */
 328 #define X86_FEATURE_V_VMSAVE_VMLOAD     (15*32+15) /* Virtual VMSAVE VMLOAD */
 329 #define X86_FEATURE_VGIF                (15*32+16) /* Virtual GIF */
 330 
 331 /* Intel-defined CPU features, CPUID level 0x00000007:0 (ECX), word 16 */
 332 #define X86_FEATURE_AVX512VBMI          (16*32+ 1) /* AVX512 Vector Bit Manipulation instructions*/
 333 #define X86_FEATURE_UMIP                (16*32+ 2) /* User Mode Instruction Protection */
 334 #define X86_FEATURE_PKU                 (16*32+ 3) /* Protection Keys for Userspace */
 335 #define X86_FEATURE_OSPKE               (16*32+ 4) /* OS Protection Keys Enable */
 336 #define X86_FEATURE_WAITPKG             (16*32+ 5) /* UMONITOR/UMWAIT/TPAUSE Instructions */
 337 #define X86_FEATURE_AVX512_VBMI2        (16*32+ 6) /* Additional AVX512 Vector Bit Manipulation Instructions */
 338 #define X86_FEATURE_GFNI                (16*32+ 8) /* Galois Field New Instructions */
 339 #define X86_FEATURE_VAES                (16*32+ 9) /* Vector AES */
 340 #define X86_FEATURE_VPCLMULQDQ          (16*32+10) /* Carry-Less Multiplication Double Quadword */
 341 #define X86_FEATURE_AVX512_VNNI         (16*32+11) /* Vector Neural Network Instructions */
 342 #define X86_FEATURE_AVX512_BITALG       (16*32+12) /* Support for VPOPCNT[B,W] and VPSHUF-BITQMB instructions */
 343 #define X86_FEATURE_TME                 (16*32+13) /* Intel Total Memory Encryption */
 344 #define X86_FEATURE_AVX512_VPOPCNTDQ    (16*32+14) /* POPCNT for vectors of DW/QW */
 345 #define X86_FEATURE_LA57                (16*32+16) /* 5-level page tables */
 346 #define X86_FEATURE_RDPID               (16*32+22) /* RDPID instruction */
 347 #define X86_FEATURE_CLDEMOTE            (16*32+25) /* CLDEMOTE instruction */
 348 #define X86_FEATURE_MOVDIRI             (16*32+27) /* MOVDIRI instruction */
 349 #define X86_FEATURE_MOVDIR64B           (16*32+28) /* MOVDIR64B instruction */
 350 
 351 /* AMD-defined CPU features, CPUID level 0x80000007 (EBX), word 17 */
 352 #define X86_FEATURE_OVERFLOW_RECOV      (17*32+ 0) /* MCA overflow recovery support */
 353 #define X86_FEATURE_SUCCOR              (17*32+ 1) /* Uncorrectable error containment and recovery */
 354 #define X86_FEATURE_SMCA                (17*32+ 3) /* Scalable MCA */
 355 
 356 /* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
 357 #define X86_FEATURE_AVX512_4VNNIW       (18*32+ 2) /* AVX-512 Neural Network Instructions */
 358 #define X86_FEATURE_AVX512_4FMAPS       (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
 359 #define X86_FEATURE_AVX512_VP2INTERSECT (18*32+ 8) /* AVX-512 Intersect for D/Q */
 360 #define X86_FEATURE_SRBDS_CTRL          (18*32+ 9) /* "" SRBDS mitigation MSR available */
 361 #define X86_FEATURE_MD_CLEAR            (18*32+10) /* VERW clears CPU buffers */
 362 #define X86_FEATURE_TSX_FORCE_ABORT     (18*32+13) /* "" TSX_FORCE_ABORT */
 363 #define X86_FEATURE_PCONFIG             (18*32+18) /* Intel PCONFIG */
 364 #define X86_FEATURE_SPEC_CTRL           (18*32+26) /* "" Speculation Control (IBRS + IBPB) */
 365 #define X86_FEATURE_INTEL_STIBP         (18*32+27) /* "" Single Thread Indirect Branch Predictors */
 366 #define X86_FEATURE_FLUSH_L1D           (18*32+28) /* Flush L1D cache */
 367 #define X86_FEATURE_ARCH_CAPABILITIES   (18*32+29) /* IA32_ARCH_CAPABILITIES MSR (Intel) */
 368 #define X86_FEATURE_SPEC_CTRL_SSBD      (18*32+31) /* "" Speculative Store Bypass Disable */
 369 
 370 /*
 371  * BUG word(s)
 372  */
 373 #define X86_BUG(x)                      (NCAPINTS*32 + (x))
 374 
 375 #define X86_BUG_F00F                    X86_BUG(0) /* Intel F00F */
 376 #define X86_BUG_FDIV                    X86_BUG(1) /* FPU FDIV */
 377 #define X86_BUG_COMA                    X86_BUG(2) /* Cyrix 6x86 coma */
 378 #define X86_BUG_AMD_TLB_MMATCH          X86_BUG(3) /* "tlb_mmatch" AMD Erratum 383 */
 379 #define X86_BUG_AMD_APIC_C1E            X86_BUG(4) /* "apic_c1e" AMD Erratum 400 */
 380 #define X86_BUG_11AP                    X86_BUG(5) /* Bad local APIC aka 11AP */
 381 #define X86_BUG_FXSAVE_LEAK             X86_BUG(6) /* FXSAVE leaks FOP/FIP/FOP */
 382 #define X86_BUG_CLFLUSH_MONITOR         X86_BUG(7) /* AAI65, CLFLUSH required before MONITOR */
 383 #define X86_BUG_SYSRET_SS_ATTRS         X86_BUG(8) /* SYSRET doesn't fix up SS attrs */
 384 #ifdef CONFIG_X86_32
 385 /*
 386  * 64-bit kernels don't use X86_BUG_ESPFIX.  Make the define conditional
 387  * to avoid confusion.
 388  */
 389 #define X86_BUG_ESPFIX                  X86_BUG(9) /* "" IRET to 16-bit SS corrupts ESP/RSP high bits */
 390 #endif
 391 #define X86_BUG_NULL_SEG                X86_BUG(10) /* Nulling a selector preserves the base */
 392 #define X86_BUG_SWAPGS_FENCE            X86_BUG(11) /* SWAPGS without input dep on GS */
 393 #define X86_BUG_MONITOR                 X86_BUG(12) /* IPI required to wake up remote CPU */
 394 #define X86_BUG_AMD_E400                X86_BUG(13) /* CPU is among the affected by Erratum 400 */
 395 #define X86_BUG_CPU_MELTDOWN            X86_BUG(14) /* CPU is affected by meltdown attack and needs kernel page table isolation */
 396 #define X86_BUG_SPECTRE_V1              X86_BUG(15) /* CPU is affected by Spectre variant 1 attack with conditional branches */
 397 #define X86_BUG_SPECTRE_V2              X86_BUG(16) /* CPU is affected by Spectre variant 2 attack with indirect branches */
 398 #define X86_BUG_SPEC_STORE_BYPASS       X86_BUG(17) /* CPU is affected by speculative store bypass attack */
 399 #define X86_BUG_L1TF                    X86_BUG(18) /* CPU is affected by L1 Terminal Fault */
 400 #define X86_BUG_MDS                     X86_BUG(19) /* CPU is affected by Microarchitectural data sampling */
 401 #define X86_BUG_MSBDS_ONLY              X86_BUG(20) /* CPU is only affected by the  MSDBS variant of BUG_MDS */
 402 #define X86_BUG_SWAPGS                  X86_BUG(21) /* CPU is affected by speculation through SWAPGS */
 403 #define X86_BUG_TAA                     X86_BUG(22) /* CPU is affected by TSX Async Abort(TAA) */
 404 #define X86_BUG_ITLB_MULTIHIT           X86_BUG(23) /* CPU may incur MCE during certain page attribute changes */
 405 #define X86_BUG_SRBDS                   X86_BUG(24) /* CPU may leak RNG bits if not mitigated */
 406 
 407 #endif /* _ASM_X86_CPUFEATURES_H */