cpufeatures.h 31 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef _ASM_X86_CPUFEATURES_H
  3. #define _ASM_X86_CPUFEATURES_H
  4. #ifndef _ASM_X86_REQUIRED_FEATURES_H
  5. #include <asm/required-features.h>
  6. #endif
  7. #ifndef _ASM_X86_DISABLED_FEATURES_H
  8. #include <asm/disabled-features.h>
  9. #endif
  10. /*
  11. * Defines x86 CPU feature bits
  12. */
  13. #define NCAPINTS 21 /* N 32-bit words worth of info */
  14. #define NBUGINTS 2 /* N 32-bit bug flags */
  15. /*
  16. * Note: If the comment begins with a quoted string, that string is used
  17. * in /proc/cpuinfo instead of the macro name. If the string is "",
  18. * this feature bit is not displayed in /proc/cpuinfo at all.
  19. *
  20. * When adding new features here that depend on other features,
  21. * please update the table in kernel/cpu/cpuid-deps.c as well.
  22. */
  23. /* Intel-defined CPU features, CPUID level 0x00000001 (EDX), word 0 */
  24. #define X86_FEATURE_FPU ( 0*32+ 0) /* Onboard FPU */
  25. #define X86_FEATURE_VME ( 0*32+ 1) /* Virtual Mode Extensions */
  26. #define X86_FEATURE_DE ( 0*32+ 2) /* Debugging Extensions */
  27. #define X86_FEATURE_PSE ( 0*32+ 3) /* Page Size Extensions */
  28. #define X86_FEATURE_TSC ( 0*32+ 4) /* Time Stamp Counter */
  29. #define X86_FEATURE_MSR ( 0*32+ 5) /* Model-Specific Registers */
  30. #define X86_FEATURE_PAE ( 0*32+ 6) /* Physical Address Extensions */
  31. #define X86_FEATURE_MCE ( 0*32+ 7) /* Machine Check Exception */
  32. #define X86_FEATURE_CX8 ( 0*32+ 8) /* CMPXCHG8 instruction */
  33. #define X86_FEATURE_APIC ( 0*32+ 9) /* Onboard APIC */
  34. #define X86_FEATURE_SEP ( 0*32+11) /* SYSENTER/SYSEXIT */
  35. #define X86_FEATURE_MTRR ( 0*32+12) /* Memory Type Range Registers */
  36. #define X86_FEATURE_PGE ( 0*32+13) /* Page Global Enable */
  37. #define X86_FEATURE_MCA ( 0*32+14) /* Machine Check Architecture */
  38. #define X86_FEATURE_CMOV ( 0*32+15) /* CMOV instructions (plus FCMOVcc, FCOMI with FPU) */
  39. #define X86_FEATURE_PAT ( 0*32+16) /* Page Attribute Table */
  40. #define X86_FEATURE_PSE36 ( 0*32+17) /* 36-bit PSEs */
  41. #define X86_FEATURE_PN ( 0*32+18) /* Processor serial number */
  42. #define X86_FEATURE_CLFLUSH ( 0*32+19) /* CLFLUSH instruction */
  43. #define X86_FEATURE_DS ( 0*32+21) /* "dts" Debug Store */
  44. #define X86_FEATURE_ACPI ( 0*32+22) /* ACPI via MSR */
  45. #define X86_FEATURE_MMX ( 0*32+23) /* Multimedia Extensions */
  46. #define X86_FEATURE_FXSR ( 0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */
  47. #define X86_FEATURE_XMM ( 0*32+25) /* "sse" */
  48. #define X86_FEATURE_XMM2 ( 0*32+26) /* "sse2" */
  49. #define X86_FEATURE_SELFSNOOP ( 0*32+27) /* "ss" CPU self snoop */
  50. #define X86_FEATURE_HT ( 0*32+28) /* Hyper-Threading */
  51. #define X86_FEATURE_ACC ( 0*32+29) /* "tm" Automatic clock control */
  52. #define X86_FEATURE_IA64 ( 0*32+30) /* IA-64 processor */
  53. #define X86_FEATURE_PBE ( 0*32+31) /* Pending Break Enable */
  54. /* AMD-defined CPU features, CPUID level 0x80000001, word 1 */
  55. /* Don't duplicate feature flags which are redundant with Intel! */
  56. #define X86_FEATURE_SYSCALL ( 1*32+11) /* SYSCALL/SYSRET */
  57. #define X86_FEATURE_MP ( 1*32+19) /* MP Capable */
  58. #define X86_FEATURE_NX ( 1*32+20) /* Execute Disable */
  59. #define X86_FEATURE_MMXEXT ( 1*32+22) /* AMD MMX extensions */
  60. #define X86_FEATURE_FXSR_OPT ( 1*32+25) /* FXSAVE/FXRSTOR optimizations */
  61. #define X86_FEATURE_GBPAGES ( 1*32+26) /* "pdpe1gb" GB pages */
  62. #define X86_FEATURE_RDTSCP ( 1*32+27) /* RDTSCP */
  63. #define X86_FEATURE_LM ( 1*32+29) /* Long Mode (x86-64, 64-bit support) */
  64. #define X86_FEATURE_3DNOWEXT ( 1*32+30) /* AMD 3DNow extensions */
  65. #define X86_FEATURE_3DNOW ( 1*32+31) /* 3DNow */
  66. /* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */
  67. #define X86_FEATURE_RECOVERY ( 2*32+ 0) /* CPU in recovery mode */
  68. #define X86_FEATURE_LONGRUN ( 2*32+ 1) /* Longrun power control */
  69. #define X86_FEATURE_LRTI ( 2*32+ 3) /* LongRun table interface */
  70. /* Other features, Linux-defined mapping, word 3 */
  71. /* This range is used for feature bits which conflict or are synthesized */
  72. #define X86_FEATURE_CXMMX ( 3*32+ 0) /* Cyrix MMX extensions */
  73. #define X86_FEATURE_K6_MTRR ( 3*32+ 1) /* AMD K6 nonstandard MTRRs */
  74. #define X86_FEATURE_CYRIX_ARR ( 3*32+ 2) /* Cyrix ARRs (= MTRRs) */
  75. #define X86_FEATURE_CENTAUR_MCR ( 3*32+ 3) /* Centaur MCRs (= MTRRs) */
  76. /* CPU types for specific tunings: */
  77. #define X86_FEATURE_K8 ( 3*32+ 4) /* "" Opteron, Athlon64 */
  78. /* FREE, was #define X86_FEATURE_K7 ( 3*32+ 5) "" Athlon */
  79. #define X86_FEATURE_P3 ( 3*32+ 6) /* "" P3 */
  80. #define X86_FEATURE_P4 ( 3*32+ 7) /* "" P4 */
  81. #define X86_FEATURE_CONSTANT_TSC ( 3*32+ 8) /* TSC ticks at a constant rate */
  82. #define X86_FEATURE_UP ( 3*32+ 9) /* SMP kernel running on UP */
  83. #define X86_FEATURE_ART ( 3*32+10) /* Always running timer (ART) */
  84. #define X86_FEATURE_ARCH_PERFMON ( 3*32+11) /* Intel Architectural PerfMon */
  85. #define X86_FEATURE_PEBS ( 3*32+12) /* Precise-Event Based Sampling */
  86. #define X86_FEATURE_BTS ( 3*32+13) /* Branch Trace Store */
  87. #define X86_FEATURE_SYSCALL32 ( 3*32+14) /* "" syscall in IA32 userspace */
  88. #define X86_FEATURE_SYSENTER32 ( 3*32+15) /* "" sysenter in IA32 userspace */
  89. #define X86_FEATURE_REP_GOOD ( 3*32+16) /* REP microcode works well */
  90. #define X86_FEATURE_AMD_LBR_V2 ( 3*32+17) /* AMD Last Branch Record Extension Version 2 */
  91. #define X86_FEATURE_LFENCE_RDTSC ( 3*32+18) /* "" LFENCE synchronizes RDTSC */
  92. #define X86_FEATURE_ACC_POWER ( 3*32+19) /* AMD Accumulated Power Mechanism */
  93. #define X86_FEATURE_NOPL ( 3*32+20) /* The NOPL (0F 1F) instructions */
  94. #define X86_FEATURE_ALWAYS ( 3*32+21) /* "" Always-present feature */
  95. #define X86_FEATURE_XTOPOLOGY ( 3*32+22) /* CPU topology enum extensions */
  96. #define X86_FEATURE_TSC_RELIABLE ( 3*32+23) /* TSC is known to be reliable */
  97. #define X86_FEATURE_NONSTOP_TSC ( 3*32+24) /* TSC does not stop in C states */
  98. #define X86_FEATURE_CPUID ( 3*32+25) /* CPU has CPUID instruction itself */
  99. #define X86_FEATURE_EXTD_APICID ( 3*32+26) /* Extended APICID (8 bits) */
  100. #define X86_FEATURE_AMD_DCM ( 3*32+27) /* AMD multi-node processor */
  101. #define X86_FEATURE_APERFMPERF ( 3*32+28) /* P-State hardware coordination feedback capability (APERF/MPERF MSRs) */
  102. #define X86_FEATURE_RAPL ( 3*32+29) /* AMD/Hygon RAPL interface */
  103. #define X86_FEATURE_NONSTOP_TSC_S3 ( 3*32+30) /* TSC doesn't stop in S3 state */
  104. #define X86_FEATURE_TSC_KNOWN_FREQ ( 3*32+31) /* TSC has known frequency */
  105. /* Intel-defined CPU features, CPUID level 0x00000001 (ECX), word 4 */
  106. #define X86_FEATURE_XMM3 ( 4*32+ 0) /* "pni" SSE-3 */
  107. #define X86_FEATURE_PCLMULQDQ ( 4*32+ 1) /* PCLMULQDQ instruction */
  108. #define X86_FEATURE_DTES64 ( 4*32+ 2) /* 64-bit Debug Store */
  109. #define X86_FEATURE_MWAIT ( 4*32+ 3) /* "monitor" MONITOR/MWAIT support */
  110. #define X86_FEATURE_DSCPL ( 4*32+ 4) /* "ds_cpl" CPL-qualified (filtered) Debug Store */
  111. #define X86_FEATURE_VMX ( 4*32+ 5) /* Hardware virtualization */
  112. #define X86_FEATURE_SMX ( 4*32+ 6) /* Safer Mode eXtensions */
  113. #define X86_FEATURE_EST ( 4*32+ 7) /* Enhanced SpeedStep */
  114. #define X86_FEATURE_TM2 ( 4*32+ 8) /* Thermal Monitor 2 */
  115. #define X86_FEATURE_SSSE3 ( 4*32+ 9) /* Supplemental SSE-3 */
  116. #define X86_FEATURE_CID ( 4*32+10) /* Context ID */
  117. #define X86_FEATURE_SDBG ( 4*32+11) /* Silicon Debug */
  118. #define X86_FEATURE_FMA ( 4*32+12) /* Fused multiply-add */
  119. #define X86_FEATURE_CX16 ( 4*32+13) /* CMPXCHG16B instruction */
  120. #define X86_FEATURE_XTPR ( 4*32+14) /* Send Task Priority Messages */
  121. #define X86_FEATURE_PDCM ( 4*32+15) /* Perf/Debug Capabilities MSR */
  122. #define X86_FEATURE_PCID ( 4*32+17) /* Process Context Identifiers */
  123. #define X86_FEATURE_DCA ( 4*32+18) /* Direct Cache Access */
  124. #define X86_FEATURE_XMM4_1 ( 4*32+19) /* "sse4_1" SSE-4.1 */
  125. #define X86_FEATURE_XMM4_2 ( 4*32+20) /* "sse4_2" SSE-4.2 */
  126. #define X86_FEATURE_X2APIC ( 4*32+21) /* X2APIC */
  127. #define X86_FEATURE_MOVBE ( 4*32+22) /* MOVBE instruction */
  128. #define X86_FEATURE_POPCNT ( 4*32+23) /* POPCNT instruction */
  129. #define X86_FEATURE_TSC_DEADLINE_TIMER ( 4*32+24) /* TSC deadline timer */
  130. #define X86_FEATURE_AES ( 4*32+25) /* AES instructions */
  131. #define X86_FEATURE_XSAVE ( 4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV instructions */
  132. #define X86_FEATURE_OSXSAVE ( 4*32+27) /* "" XSAVE instruction enabled in the OS */
  133. #define X86_FEATURE_AVX ( 4*32+28) /* Advanced Vector Extensions */
  134. #define X86_FEATURE_F16C ( 4*32+29) /* 16-bit FP conversions */
  135. #define X86_FEATURE_RDRAND ( 4*32+30) /* RDRAND instruction */
  136. #define X86_FEATURE_HYPERVISOR ( 4*32+31) /* Running on a hypervisor */
  137. /* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */
  138. #define X86_FEATURE_XSTORE ( 5*32+ 2) /* "rng" RNG present (xstore) */
  139. #define X86_FEATURE_XSTORE_EN ( 5*32+ 3) /* "rng_en" RNG enabled */
  140. #define X86_FEATURE_XCRYPT ( 5*32+ 6) /* "ace" on-CPU crypto (xcrypt) */
  141. #define X86_FEATURE_XCRYPT_EN ( 5*32+ 7) /* "ace_en" on-CPU crypto enabled */
  142. #define X86_FEATURE_ACE2 ( 5*32+ 8) /* Advanced Cryptography Engine v2 */
  143. #define X86_FEATURE_ACE2_EN ( 5*32+ 9) /* ACE v2 enabled */
  144. #define X86_FEATURE_PHE ( 5*32+10) /* PadLock Hash Engine */
  145. #define X86_FEATURE_PHE_EN ( 5*32+11) /* PHE enabled */
  146. #define X86_FEATURE_PMM ( 5*32+12) /* PadLock Montgomery Multiplier */
  147. #define X86_FEATURE_PMM_EN ( 5*32+13) /* PMM enabled */
  148. /* More extended AMD flags: CPUID level 0x80000001, ECX, word 6 */
  149. #define X86_FEATURE_LAHF_LM ( 6*32+ 0) /* LAHF/SAHF in long mode */
  150. #define X86_FEATURE_CMP_LEGACY ( 6*32+ 1) /* If yes HyperThreading not valid */
  151. #define X86_FEATURE_SVM ( 6*32+ 2) /* Secure Virtual Machine */
  152. #define X86_FEATURE_EXTAPIC ( 6*32+ 3) /* Extended APIC space */
  153. #define X86_FEATURE_CR8_LEGACY ( 6*32+ 4) /* CR8 in 32-bit mode */
  154. #define X86_FEATURE_ABM ( 6*32+ 5) /* Advanced bit manipulation */
  155. #define X86_FEATURE_SSE4A ( 6*32+ 6) /* SSE-4A */
  156. #define X86_FEATURE_MISALIGNSSE ( 6*32+ 7) /* Misaligned SSE mode */
  157. #define X86_FEATURE_3DNOWPREFETCH ( 6*32+ 8) /* 3DNow prefetch instructions */
  158. #define X86_FEATURE_OSVW ( 6*32+ 9) /* OS Visible Workaround */
  159. #define X86_FEATURE_IBS ( 6*32+10) /* Instruction Based Sampling */
  160. #define X86_FEATURE_XOP ( 6*32+11) /* extended AVX instructions */
  161. #define X86_FEATURE_SKINIT ( 6*32+12) /* SKINIT/STGI instructions */
  162. #define X86_FEATURE_WDT ( 6*32+13) /* Watchdog timer */
  163. #define X86_FEATURE_LWP ( 6*32+15) /* Light Weight Profiling */
  164. #define X86_FEATURE_FMA4 ( 6*32+16) /* 4 operands MAC instructions */
  165. #define X86_FEATURE_TCE ( 6*32+17) /* Translation Cache Extension */
  166. #define X86_FEATURE_NODEID_MSR ( 6*32+19) /* NodeId MSR */
  167. #define X86_FEATURE_TBM ( 6*32+21) /* Trailing Bit Manipulations */
  168. #define X86_FEATURE_TOPOEXT ( 6*32+22) /* Topology extensions CPUID leafs */
  169. #define X86_FEATURE_PERFCTR_CORE ( 6*32+23) /* Core performance counter extensions */
  170. #define X86_FEATURE_PERFCTR_NB ( 6*32+24) /* NB performance counter extensions */
  171. #define X86_FEATURE_BPEXT ( 6*32+26) /* Data breakpoint extension */
  172. #define X86_FEATURE_PTSC ( 6*32+27) /* Performance time-stamp counter */
  173. #define X86_FEATURE_PERFCTR_LLC ( 6*32+28) /* Last Level Cache performance counter extensions */
  174. #define X86_FEATURE_MWAITX ( 6*32+29) /* MWAIT extension (MONITORX/MWAITX instructions) */
  175. /*
  176. * Auxiliary flags: Linux defined - For features scattered in various
  177. * CPUID levels like 0x6, 0xA etc, word 7.
  178. *
  179. * Reuse free bits when adding new feature flags!
  180. */
  181. #define X86_FEATURE_RING3MWAIT ( 7*32+ 0) /* Ring 3 MONITOR/MWAIT instructions */
  182. #define X86_FEATURE_CPUID_FAULT ( 7*32+ 1) /* Intel CPUID faulting */
  183. #define X86_FEATURE_CPB ( 7*32+ 2) /* AMD Core Performance Boost */
  184. #define X86_FEATURE_EPB ( 7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */
  185. #define X86_FEATURE_CAT_L3 ( 7*32+ 4) /* Cache Allocation Technology L3 */
  186. #define X86_FEATURE_CAT_L2 ( 7*32+ 5) /* Cache Allocation Technology L2 */
  187. #define X86_FEATURE_CDP_L3 ( 7*32+ 6) /* Code and Data Prioritization L3 */
  188. #define X86_FEATURE_INVPCID_SINGLE ( 7*32+ 7) /* Effectively INVPCID && CR4.PCIDE=1 */
  189. #define X86_FEATURE_HW_PSTATE ( 7*32+ 8) /* AMD HW-PState */
  190. #define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
  191. #define X86_FEATURE_XCOMPACTED ( 7*32+10) /* "" Use compacted XSTATE (XSAVES or XSAVEC) */
  192. #define X86_FEATURE_PTI ( 7*32+11) /* Kernel Page Table Isolation enabled */
  193. #define X86_FEATURE_KERNEL_IBRS ( 7*32+12) /* "" Set/clear IBRS on kernel entry/exit */
  194. #define X86_FEATURE_RSB_VMEXIT ( 7*32+13) /* "" Fill RSB on VM-Exit */
  195. #define X86_FEATURE_INTEL_PPIN ( 7*32+14) /* Intel Processor Inventory Number */
  196. #define X86_FEATURE_CDP_L2 ( 7*32+15) /* Code and Data Prioritization L2 */
  197. #define X86_FEATURE_MSR_SPEC_CTRL ( 7*32+16) /* "" MSR SPEC_CTRL is implemented */
  198. #define X86_FEATURE_SSBD ( 7*32+17) /* Speculative Store Bypass Disable */
  199. #define X86_FEATURE_MBA ( 7*32+18) /* Memory Bandwidth Allocation */
  200. #define X86_FEATURE_RSB_CTXSW ( 7*32+19) /* "" Fill RSB on context switches */
  201. #define X86_FEATURE_PERFMON_V2 ( 7*32+20) /* AMD Performance Monitoring Version 2 */
  202. #define X86_FEATURE_USE_IBPB ( 7*32+21) /* "" Indirect Branch Prediction Barrier enabled */
  203. #define X86_FEATURE_USE_IBRS_FW ( 7*32+22) /* "" Use IBRS during runtime firmware calls */
  204. #define X86_FEATURE_SPEC_STORE_BYPASS_DISABLE ( 7*32+23) /* "" Disable Speculative Store Bypass. */
  205. #define X86_FEATURE_LS_CFG_SSBD ( 7*32+24) /* "" AMD SSBD implementation via LS_CFG MSR */
  206. #define X86_FEATURE_IBRS ( 7*32+25) /* Indirect Branch Restricted Speculation */
  207. #define X86_FEATURE_IBPB ( 7*32+26) /* Indirect Branch Prediction Barrier */
  208. #define X86_FEATURE_STIBP ( 7*32+27) /* Single Thread Indirect Branch Predictors */
  209. #define X86_FEATURE_ZEN (7*32+28) /* "" CPU based on Zen microarchitecture */
  210. #define X86_FEATURE_L1TF_PTEINV ( 7*32+29) /* "" L1TF workaround PTE inversion */
  211. #define X86_FEATURE_IBRS_ENHANCED ( 7*32+30) /* Enhanced IBRS */
  212. #define X86_FEATURE_MSR_IA32_FEAT_CTL ( 7*32+31) /* "" MSR IA32_FEAT_CTL configured */
  213. /* Virtualization flags: Linux defined, word 8 */
  214. #define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */
  215. #define X86_FEATURE_VNMI ( 8*32+ 1) /* Intel Virtual NMI */
  216. #define X86_FEATURE_FLEXPRIORITY ( 8*32+ 2) /* Intel FlexPriority */
  217. #define X86_FEATURE_EPT ( 8*32+ 3) /* Intel Extended Page Table */
  218. #define X86_FEATURE_VPID ( 8*32+ 4) /* Intel Virtual Processor ID */
  219. #define X86_FEATURE_VMMCALL ( 8*32+15) /* Prefer VMMCALL to VMCALL */
  220. #define X86_FEATURE_XENPV ( 8*32+16) /* "" Xen paravirtual guest */
  221. #define X86_FEATURE_EPT_AD ( 8*32+17) /* Intel Extended Page Table access-dirty bit */
  222. #define X86_FEATURE_VMCALL ( 8*32+18) /* "" Hypervisor supports the VMCALL instruction */
  223. #define X86_FEATURE_VMW_VMMCALL ( 8*32+19) /* "" VMware prefers VMMCALL hypercall instruction */
  224. #define X86_FEATURE_PVUNLOCK ( 8*32+20) /* "" PV unlock function */
  225. #define X86_FEATURE_VCPUPREEMPT ( 8*32+21) /* "" PV vcpu_is_preempted function */
  226. #define X86_FEATURE_TDX_GUEST ( 8*32+22) /* Intel Trust Domain Extensions Guest */
  227. /* Intel-defined CPU features, CPUID level 0x00000007:0 (EBX), word 9 */
  228. #define X86_FEATURE_FSGSBASE ( 9*32+ 0) /* RDFSBASE, WRFSBASE, RDGSBASE, WRGSBASE instructions*/
  229. #define X86_FEATURE_TSC_ADJUST ( 9*32+ 1) /* TSC adjustment MSR 0x3B */
  230. #define X86_FEATURE_SGX ( 9*32+ 2) /* Software Guard Extensions */
  231. #define X86_FEATURE_BMI1 ( 9*32+ 3) /* 1st group bit manipulation extensions */
  232. #define X86_FEATURE_HLE ( 9*32+ 4) /* Hardware Lock Elision */
  233. #define X86_FEATURE_AVX2 ( 9*32+ 5) /* AVX2 instructions */
  234. #define X86_FEATURE_FDP_EXCPTN_ONLY ( 9*32+ 6) /* "" FPU data pointer updated only on x87 exceptions */
  235. #define X86_FEATURE_SMEP ( 9*32+ 7) /* Supervisor Mode Execution Protection */
  236. #define X86_FEATURE_BMI2 ( 9*32+ 8) /* 2nd group bit manipulation extensions */
  237. #define X86_FEATURE_ERMS ( 9*32+ 9) /* Enhanced REP MOVSB/STOSB instructions */
  238. #define X86_FEATURE_INVPCID ( 9*32+10) /* Invalidate Processor Context ID */
  239. #define X86_FEATURE_RTM ( 9*32+11) /* Restricted Transactional Memory */
  240. #define X86_FEATURE_CQM ( 9*32+12) /* Cache QoS Monitoring */
  241. #define X86_FEATURE_ZERO_FCS_FDS ( 9*32+13) /* "" Zero out FPU CS and FPU DS */
  242. #define X86_FEATURE_MPX ( 9*32+14) /* Memory Protection Extension */
  243. #define X86_FEATURE_RDT_A ( 9*32+15) /* Resource Director Technology Allocation */
  244. #define X86_FEATURE_AVX512F ( 9*32+16) /* AVX-512 Foundation */
  245. #define X86_FEATURE_AVX512DQ ( 9*32+17) /* AVX-512 DQ (Double/Quad granular) Instructions */
  246. #define X86_FEATURE_RDSEED ( 9*32+18) /* RDSEED instruction */
  247. #define X86_FEATURE_ADX ( 9*32+19) /* ADCX and ADOX instructions */
  248. #define X86_FEATURE_SMAP ( 9*32+20) /* Supervisor Mode Access Prevention */
  249. #define X86_FEATURE_AVX512IFMA ( 9*32+21) /* AVX-512 Integer Fused Multiply-Add instructions */
  250. #define X86_FEATURE_CLFLUSHOPT ( 9*32+23) /* CLFLUSHOPT instruction */
  251. #define X86_FEATURE_CLWB ( 9*32+24) /* CLWB instruction */
  252. #define X86_FEATURE_INTEL_PT ( 9*32+25) /* Intel Processor Trace */
  253. #define X86_FEATURE_AVX512PF ( 9*32+26) /* AVX-512 Prefetch */
  254. #define X86_FEATURE_AVX512ER ( 9*32+27) /* AVX-512 Exponential and Reciprocal */
  255. #define X86_FEATURE_AVX512CD ( 9*32+28) /* AVX-512 Conflict Detection */
  256. #define X86_FEATURE_SHA_NI ( 9*32+29) /* SHA1/SHA256 Instruction Extensions */
  257. #define X86_FEATURE_AVX512BW ( 9*32+30) /* AVX-512 BW (Byte/Word granular) Instructions */
  258. #define X86_FEATURE_AVX512VL ( 9*32+31) /* AVX-512 VL (128/256 Vector Length) Extensions */
  259. /* Extended state features, CPUID level 0x0000000d:1 (EAX), word 10 */
  260. #define X86_FEATURE_XSAVEOPT (10*32+ 0) /* XSAVEOPT instruction */
  261. #define X86_FEATURE_XSAVEC (10*32+ 1) /* XSAVEC instruction */
  262. #define X86_FEATURE_XGETBV1 (10*32+ 2) /* XGETBV with ECX = 1 instruction */
  263. #define X86_FEATURE_XSAVES (10*32+ 3) /* XSAVES/XRSTORS instructions */
  264. #define X86_FEATURE_XFD (10*32+ 4) /* "" eXtended Feature Disabling */
  265. /*
  266. * Extended auxiliary flags: Linux defined - for features scattered in various
  267. * CPUID levels like 0xf, etc.
  268. *
  269. * Reuse free bits when adding new feature flags!
  270. */
  271. #define X86_FEATURE_CQM_LLC (11*32+ 0) /* LLC QoS if 1 */
  272. #define X86_FEATURE_CQM_OCCUP_LLC (11*32+ 1) /* LLC occupancy monitoring */
  273. #define X86_FEATURE_CQM_MBM_TOTAL (11*32+ 2) /* LLC Total MBM monitoring */
  274. #define X86_FEATURE_CQM_MBM_LOCAL (11*32+ 3) /* LLC Local MBM monitoring */
  275. #define X86_FEATURE_FENCE_SWAPGS_USER (11*32+ 4) /* "" LFENCE in user entry SWAPGS path */
  276. #define X86_FEATURE_FENCE_SWAPGS_KERNEL (11*32+ 5) /* "" LFENCE in kernel entry SWAPGS path */
  277. #define X86_FEATURE_SPLIT_LOCK_DETECT (11*32+ 6) /* #AC for split lock */
  278. #define X86_FEATURE_PER_THREAD_MBA (11*32+ 7) /* "" Per-thread Memory Bandwidth Allocation */
  279. #define X86_FEATURE_SGX1 (11*32+ 8) /* "" Basic SGX */
  280. #define X86_FEATURE_SGX2 (11*32+ 9) /* "" SGX Enclave Dynamic Memory Management (EDMM) */
  281. #define X86_FEATURE_ENTRY_IBPB (11*32+10) /* "" Issue an IBPB on kernel entry */
  282. #define X86_FEATURE_RRSBA_CTRL (11*32+11) /* "" RET prediction control */
  283. #define X86_FEATURE_RETPOLINE (11*32+12) /* "" Generic Retpoline mitigation for Spectre variant 2 */
  284. #define X86_FEATURE_RETPOLINE_LFENCE (11*32+13) /* "" Use LFENCE for Spectre variant 2 */
  285. #define X86_FEATURE_RETHUNK (11*32+14) /* "" Use REturn THUNK */
  286. #define X86_FEATURE_UNRET (11*32+15) /* "" AMD BTB untrain return */
  287. #define X86_FEATURE_USE_IBPB_FW (11*32+16) /* "" Use IBPB during runtime firmware calls */
  288. #define X86_FEATURE_RSB_VMEXIT_LITE (11*32+17) /* "" Fill RSB on VM exit when EIBRS is enabled */
  289. #define X86_FEATURE_MSR_TSX_CTRL (11*32+20) /* "" MSR IA32_TSX_CTRL (Intel) implemented */
  290. #define X86_FEATURE_SRSO (11*32+24) /* "" AMD BTB untrain RETs */
  291. #define X86_FEATURE_SRSO_ALIAS (11*32+25) /* "" AMD BTB untrain RETs through aliasing */
  292. #define X86_FEATURE_IBPB_ON_VMEXIT (11*32+26) /* "" Issue an IBPB only on VMEXIT */
  293. /* Intel-defined CPU features, CPUID level 0x00000007:1 (EAX), word 12 */
  294. #define X86_FEATURE_AVX_VNNI (12*32+ 4) /* AVX VNNI instructions */
  295. #define X86_FEATURE_AVX512_BF16 (12*32+ 5) /* AVX512 BFLOAT16 instructions */
  296. /* AMD-defined CPU features, CPUID level 0x80000008 (EBX), word 13 */
  297. #define X86_FEATURE_CLZERO (13*32+ 0) /* CLZERO instruction */
  298. #define X86_FEATURE_IRPERF (13*32+ 1) /* Instructions Retired Count */
  299. #define X86_FEATURE_XSAVEERPTR (13*32+ 2) /* Always save/restore FP error pointers */
  300. #define X86_FEATURE_RDPRU (13*32+ 4) /* Read processor register at user level */
  301. #define X86_FEATURE_WBNOINVD (13*32+ 9) /* WBNOINVD instruction */
  302. #define X86_FEATURE_AMD_IBPB (13*32+12) /* "" Indirect Branch Prediction Barrier */
  303. #define X86_FEATURE_AMD_IBRS (13*32+14) /* "" Indirect Branch Restricted Speculation */
  304. #define X86_FEATURE_AMD_STIBP (13*32+15) /* "" Single Thread Indirect Branch Predictors */
  305. #define X86_FEATURE_AMD_STIBP_ALWAYS_ON (13*32+17) /* "" Single Thread Indirect Branch Predictors always-on preferred */
  306. #define X86_FEATURE_AMD_PPIN (13*32+23) /* Protected Processor Inventory Number */
  307. #define X86_FEATURE_AMD_SSBD (13*32+24) /* "" Speculative Store Bypass Disable */
  308. #define X86_FEATURE_VIRT_SSBD (13*32+25) /* Virtualized Speculative Store Bypass Disable */
  309. #define X86_FEATURE_AMD_SSB_NO (13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */
  310. #define X86_FEATURE_CPPC (13*32+27) /* Collaborative Processor Performance Control */
  311. #define X86_FEATURE_BTC_NO (13*32+29) /* "" Not vulnerable to Branch Type Confusion */
  312. #define X86_FEATURE_BRS (13*32+31) /* Branch Sampling available */
  313. /* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */
  314. #define X86_FEATURE_DTHERM (14*32+ 0) /* Digital Thermal Sensor */
  315. #define X86_FEATURE_IDA (14*32+ 1) /* Intel Dynamic Acceleration */
  316. #define X86_FEATURE_ARAT (14*32+ 2) /* Always Running APIC Timer */
  317. #define X86_FEATURE_PLN (14*32+ 4) /* Intel Power Limit Notification */
  318. #define X86_FEATURE_PTS (14*32+ 6) /* Intel Package Thermal Status */
  319. #define X86_FEATURE_HWP (14*32+ 7) /* Intel Hardware P-states */
  320. #define X86_FEATURE_HWP_NOTIFY (14*32+ 8) /* HWP Notification */
  321. #define X86_FEATURE_HWP_ACT_WINDOW (14*32+ 9) /* HWP Activity Window */
  322. #define X86_FEATURE_HWP_EPP (14*32+10) /* HWP Energy Perf. Preference */
  323. #define X86_FEATURE_HWP_PKG_REQ (14*32+11) /* HWP Package Level Request */
  324. #define X86_FEATURE_HFI (14*32+19) /* Hardware Feedback Interface */
  325. /* AMD SVM Feature Identification, CPUID level 0x8000000a (EDX), word 15 */
  326. #define X86_FEATURE_NPT (15*32+ 0) /* Nested Page Table support */
  327. #define X86_FEATURE_LBRV (15*32+ 1) /* LBR Virtualization support */
  328. #define X86_FEATURE_SVML (15*32+ 2) /* "svm_lock" SVM locking MSR */
  329. #define X86_FEATURE_NRIPS (15*32+ 3) /* "nrip_save" SVM next_rip save */
  330. #define X86_FEATURE_TSCRATEMSR (15*32+ 4) /* "tsc_scale" TSC scaling support */
  331. #define X86_FEATURE_VMCBCLEAN (15*32+ 5) /* "vmcb_clean" VMCB clean bits support */
  332. #define X86_FEATURE_FLUSHBYASID (15*32+ 6) /* flush-by-ASID support */
  333. #define X86_FEATURE_DECODEASSISTS (15*32+ 7) /* Decode Assists support */
  334. #define X86_FEATURE_PAUSEFILTER (15*32+10) /* filtered pause intercept */
  335. #define X86_FEATURE_PFTHRESHOLD (15*32+12) /* pause filter threshold */
  336. #define X86_FEATURE_AVIC (15*32+13) /* Virtual Interrupt Controller */
  337. #define X86_FEATURE_V_VMSAVE_VMLOAD (15*32+15) /* Virtual VMSAVE VMLOAD */
  338. #define X86_FEATURE_VGIF (15*32+16) /* Virtual GIF */
  339. #define X86_FEATURE_X2AVIC (15*32+18) /* Virtual x2apic */
  340. #define X86_FEATURE_V_SPEC_CTRL (15*32+20) /* Virtual SPEC_CTRL */
  341. #define X86_FEATURE_SVME_ADDR_CHK (15*32+28) /* "" SVME addr check */
  342. /* Intel-defined CPU features, CPUID level 0x00000007:0 (ECX), word 16 */
  343. #define X86_FEATURE_AVX512VBMI (16*32+ 1) /* AVX512 Vector Bit Manipulation instructions*/
  344. #define X86_FEATURE_UMIP (16*32+ 2) /* User Mode Instruction Protection */
  345. #define X86_FEATURE_PKU (16*32+ 3) /* Protection Keys for Userspace */
  346. #define X86_FEATURE_OSPKE (16*32+ 4) /* OS Protection Keys Enable */
  347. #define X86_FEATURE_WAITPKG (16*32+ 5) /* UMONITOR/UMWAIT/TPAUSE Instructions */
  348. #define X86_FEATURE_AVX512_VBMI2 (16*32+ 6) /* Additional AVX512 Vector Bit Manipulation Instructions */
  349. #define X86_FEATURE_GFNI (16*32+ 8) /* Galois Field New Instructions */
  350. #define X86_FEATURE_VAES (16*32+ 9) /* Vector AES */
  351. #define X86_FEATURE_VPCLMULQDQ (16*32+10) /* Carry-Less Multiplication Double Quadword */
  352. #define X86_FEATURE_AVX512_VNNI (16*32+11) /* Vector Neural Network Instructions */
  353. #define X86_FEATURE_AVX512_BITALG (16*32+12) /* Support for VPOPCNT[B,W] and VPSHUF-BITQMB instructions */
  354. #define X86_FEATURE_TME (16*32+13) /* Intel Total Memory Encryption */
  355. #define X86_FEATURE_AVX512_VPOPCNTDQ (16*32+14) /* POPCNT for vectors of DW/QW */
  356. #define X86_FEATURE_LA57 (16*32+16) /* 5-level page tables */
  357. #define X86_FEATURE_RDPID (16*32+22) /* RDPID instruction */
  358. #define X86_FEATURE_BUS_LOCK_DETECT (16*32+24) /* Bus Lock detect */
  359. #define X86_FEATURE_CLDEMOTE (16*32+25) /* CLDEMOTE instruction */
  360. #define X86_FEATURE_MOVDIRI (16*32+27) /* MOVDIRI instruction */
  361. #define X86_FEATURE_MOVDIR64B (16*32+28) /* MOVDIR64B instruction */
  362. #define X86_FEATURE_ENQCMD (16*32+29) /* ENQCMD and ENQCMDS instructions */
  363. #define X86_FEATURE_SGX_LC (16*32+30) /* Software Guard Extensions Launch Control */
  364. /* AMD-defined CPU features, CPUID level 0x80000007 (EBX), word 17 */
  365. #define X86_FEATURE_OVERFLOW_RECOV (17*32+ 0) /* MCA overflow recovery support */
  366. #define X86_FEATURE_SUCCOR (17*32+ 1) /* Uncorrectable error containment and recovery */
  367. #define X86_FEATURE_SMCA (17*32+ 3) /* Scalable MCA */
  368. /* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
  369. #define X86_FEATURE_AVX512_4VNNIW (18*32+ 2) /* AVX-512 Neural Network Instructions */
  370. #define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
  371. #define X86_FEATURE_FSRM (18*32+ 4) /* Fast Short Rep Mov */
  372. #define X86_FEATURE_AVX512_VP2INTERSECT (18*32+ 8) /* AVX-512 Intersect for D/Q */
  373. #define X86_FEATURE_SRBDS_CTRL (18*32+ 9) /* "" SRBDS mitigation MSR available */
  374. #define X86_FEATURE_MD_CLEAR (18*32+10) /* VERW clears CPU buffers */
  375. #define X86_FEATURE_RTM_ALWAYS_ABORT (18*32+11) /* "" RTM transaction always aborts */
  376. #define X86_FEATURE_TSX_FORCE_ABORT (18*32+13) /* "" TSX_FORCE_ABORT */
  377. #define X86_FEATURE_SERIALIZE (18*32+14) /* SERIALIZE instruction */
  378. #define X86_FEATURE_HYBRID_CPU (18*32+15) /* "" This part has CPUs of more than one type */
  379. #define X86_FEATURE_TSXLDTRK (18*32+16) /* TSX Suspend Load Address Tracking */
  380. #define X86_FEATURE_PCONFIG (18*32+18) /* Intel PCONFIG */
  381. #define X86_FEATURE_ARCH_LBR (18*32+19) /* Intel ARCH LBR */
  382. #define X86_FEATURE_IBT (18*32+20) /* Indirect Branch Tracking */
  383. #define X86_FEATURE_AMX_BF16 (18*32+22) /* AMX bf16 Support */
  384. #define X86_FEATURE_AVX512_FP16 (18*32+23) /* AVX512 FP16 */
  385. #define X86_FEATURE_AMX_TILE (18*32+24) /* AMX tile Support */
  386. #define X86_FEATURE_AMX_INT8 (18*32+25) /* AMX int8 Support */
  387. #define X86_FEATURE_SPEC_CTRL (18*32+26) /* "" Speculation Control (IBRS + IBPB) */
  388. #define X86_FEATURE_INTEL_STIBP (18*32+27) /* "" Single Thread Indirect Branch Predictors */
  389. #define X86_FEATURE_FLUSH_L1D (18*32+28) /* Flush L1D cache */
  390. #define X86_FEATURE_ARCH_CAPABILITIES (18*32+29) /* IA32_ARCH_CAPABILITIES MSR (Intel) */
  391. #define X86_FEATURE_CORE_CAPABILITIES (18*32+30) /* "" IA32_CORE_CAPABILITIES MSR */
  392. #define X86_FEATURE_SPEC_CTRL_SSBD (18*32+31) /* "" Speculative Store Bypass Disable */
  393. /* AMD-defined memory encryption features, CPUID level 0x8000001f (EAX), word 19 */
  394. #define X86_FEATURE_SME (19*32+ 0) /* AMD Secure Memory Encryption */
  395. #define X86_FEATURE_SEV (19*32+ 1) /* AMD Secure Encrypted Virtualization */
  396. #define X86_FEATURE_VM_PAGE_FLUSH (19*32+ 2) /* "" VM Page Flush MSR is supported */
  397. #define X86_FEATURE_SEV_ES (19*32+ 3) /* AMD Secure Encrypted Virtualization - Encrypted State */
  398. #define X86_FEATURE_V_TSC_AUX (19*32+ 9) /* "" Virtual TSC_AUX */
  399. #define X86_FEATURE_SME_COHERENT (19*32+10) /* "" AMD hardware-enforced cache coherency */
  400. #define X86_FEATURE_SBPB (20*32+27) /* "" Selective Branch Prediction Barrier */
  401. #define X86_FEATURE_IBPB_BRTYPE (20*32+28) /* "" MSR_PRED_CMD[IBPB] flushes all branch type predictions */
  402. #define X86_FEATURE_SRSO_NO (20*32+29) /* "" CPU is not affected by SRSO */
  403. /*
  404. * BUG word(s)
  405. */
  406. #define X86_BUG(x) (NCAPINTS*32 + (x))
  407. #define X86_BUG_F00F X86_BUG(0) /* Intel F00F */
  408. #define X86_BUG_FDIV X86_BUG(1) /* FPU FDIV */
  409. #define X86_BUG_COMA X86_BUG(2) /* Cyrix 6x86 coma */
  410. #define X86_BUG_AMD_TLB_MMATCH X86_BUG(3) /* "tlb_mmatch" AMD Erratum 383 */
  411. #define X86_BUG_AMD_APIC_C1E X86_BUG(4) /* "apic_c1e" AMD Erratum 400 */
  412. #define X86_BUG_11AP X86_BUG(5) /* Bad local APIC aka 11AP */
  413. #define X86_BUG_FXSAVE_LEAK X86_BUG(6) /* FXSAVE leaks FOP/FIP/FOP */
  414. #define X86_BUG_CLFLUSH_MONITOR X86_BUG(7) /* AAI65, CLFLUSH required before MONITOR */
  415. #define X86_BUG_SYSRET_SS_ATTRS X86_BUG(8) /* SYSRET doesn't fix up SS attrs */
  416. #ifdef CONFIG_X86_32
  417. /*
  418. * 64-bit kernels don't use X86_BUG_ESPFIX. Make the define conditional
  419. * to avoid confusion.
  420. */
  421. #define X86_BUG_ESPFIX X86_BUG(9) /* "" IRET to 16-bit SS corrupts ESP/RSP high bits */
  422. #endif
  423. #define X86_BUG_NULL_SEG X86_BUG(10) /* Nulling a selector preserves the base */
  424. #define X86_BUG_SWAPGS_FENCE X86_BUG(11) /* SWAPGS without input dep on GS */
  425. #define X86_BUG_MONITOR X86_BUG(12) /* IPI required to wake up remote CPU */
  426. #define X86_BUG_AMD_E400 X86_BUG(13) /* CPU is among the affected by Erratum 400 */
  427. #define X86_BUG_CPU_MELTDOWN X86_BUG(14) /* CPU is affected by meltdown attack and needs kernel page table isolation */
  428. #define X86_BUG_SPECTRE_V1 X86_BUG(15) /* CPU is affected by Spectre variant 1 attack with conditional branches */
  429. #define X86_BUG_SPECTRE_V2 X86_BUG(16) /* CPU is affected by Spectre variant 2 attack with indirect branches */
  430. #define X86_BUG_SPEC_STORE_BYPASS X86_BUG(17) /* CPU is affected by speculative store bypass attack */
  431. #define X86_BUG_L1TF X86_BUG(18) /* CPU is affected by L1 Terminal Fault */
  432. #define X86_BUG_MDS X86_BUG(19) /* CPU is affected by Microarchitectural data sampling */
  433. #define X86_BUG_MSBDS_ONLY X86_BUG(20) /* CPU is only affected by the MSDBS variant of BUG_MDS */
  434. #define X86_BUG_SWAPGS X86_BUG(21) /* CPU is affected by speculation through SWAPGS */
  435. #define X86_BUG_TAA X86_BUG(22) /* CPU is affected by TSX Async Abort(TAA) */
  436. #define X86_BUG_ITLB_MULTIHIT X86_BUG(23) /* CPU may incur MCE during certain page attribute changes */
  437. #define X86_BUG_SRBDS X86_BUG(24) /* CPU may leak RNG bits if not mitigated */
  438. #define X86_BUG_MMIO_STALE_DATA X86_BUG(25) /* CPU is affected by Processor MMIO Stale Data vulnerabilities */
  439. #define X86_BUG_MMIO_UNKNOWN X86_BUG(26) /* CPU is too old and its MMIO Stale Data status is unknown */
  440. #define X86_BUG_RETBLEED X86_BUG(27) /* CPU is affected by RETBleed */
  441. #define X86_BUG_EIBRS_PBRSB X86_BUG(28) /* EIBRS is vulnerable to Post Barrier RSB Predictions */
  442. #define X86_BUG_SMT_RSB X86_BUG(29) /* CPU is vulnerable to Cross-Thread Return Address Predictions */
  443. #define X86_BUG_GDS X86_BUG(30) /* CPU is affected by Gather Data Sampling */
  444. /* BUG word 2 */
  445. #define X86_BUG_SRSO X86_BUG(1*32 + 0) /* AMD SRSO bug */
  446. #define X86_BUG_DIV0 X86_BUG(1*32 + 1) /* AMD DIV0 speculation bug */
  447. #endif /* _ASM_X86_CPUFEATURES_H */