cpufeatures.h 19 KB

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  1. #ifndef _ASM_X86_CPUFEATURES_H
  2. #define _ASM_X86_CPUFEATURES_H
  3. #ifndef _ASM_X86_REQUIRED_FEATURES_H
  4. #include <asm/required-features.h>
  5. #endif
  6. #ifndef _ASM_X86_DISABLED_FEATURES_H
  7. #include <asm/disabled-features.h>
  8. #endif
  9. /*
  10. * Defines x86 CPU feature bits
  11. */
  12. #define NCAPINTS 19 /* N 32-bit words worth of info */
  13. #define NBUGINTS 1 /* N 32-bit bug flags */
  14. /*
  15. * Note: If the comment begins with a quoted string, that string is used
  16. * in /proc/cpuinfo instead of the macro name. If the string is "",
  17. * this feature bit is not displayed in /proc/cpuinfo at all.
  18. */
  19. /* Intel-defined CPU features, CPUID level 0x00000001 (edx), word 0 */
  20. #define X86_FEATURE_FPU ( 0*32+ 0) /* Onboard FPU */
  21. #define X86_FEATURE_VME ( 0*32+ 1) /* Virtual Mode Extensions */
  22. #define X86_FEATURE_DE ( 0*32+ 2) /* Debugging Extensions */
  23. #define X86_FEATURE_PSE ( 0*32+ 3) /* Page Size Extensions */
  24. #define X86_FEATURE_TSC ( 0*32+ 4) /* Time Stamp Counter */
  25. #define X86_FEATURE_MSR ( 0*32+ 5) /* Model-Specific Registers */
  26. #define X86_FEATURE_PAE ( 0*32+ 6) /* Physical Address Extensions */
  27. #define X86_FEATURE_MCE ( 0*32+ 7) /* Machine Check Exception */
  28. #define X86_FEATURE_CX8 ( 0*32+ 8) /* CMPXCHG8 instruction */
  29. #define X86_FEATURE_APIC ( 0*32+ 9) /* Onboard APIC */
  30. #define X86_FEATURE_SEP ( 0*32+11) /* SYSENTER/SYSEXIT */
  31. #define X86_FEATURE_MTRR ( 0*32+12) /* Memory Type Range Registers */
  32. #define X86_FEATURE_PGE ( 0*32+13) /* Page Global Enable */
  33. #define X86_FEATURE_MCA ( 0*32+14) /* Machine Check Architecture */
  34. #define X86_FEATURE_CMOV ( 0*32+15) /* CMOV instructions */
  35. /* (plus FCMOVcc, FCOMI with FPU) */
  36. #define X86_FEATURE_PAT ( 0*32+16) /* Page Attribute Table */
  37. #define X86_FEATURE_PSE36 ( 0*32+17) /* 36-bit PSEs */
  38. #define X86_FEATURE_PN ( 0*32+18) /* Processor serial number */
  39. #define X86_FEATURE_CLFLUSH ( 0*32+19) /* CLFLUSH instruction */
  40. #define X86_FEATURE_DS ( 0*32+21) /* "dts" Debug Store */
  41. #define X86_FEATURE_ACPI ( 0*32+22) /* ACPI via MSR */
  42. #define X86_FEATURE_MMX ( 0*32+23) /* Multimedia Extensions */
  43. #define X86_FEATURE_FXSR ( 0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */
  44. #define X86_FEATURE_XMM ( 0*32+25) /* "sse" */
  45. #define X86_FEATURE_XMM2 ( 0*32+26) /* "sse2" */
  46. #define X86_FEATURE_SELFSNOOP ( 0*32+27) /* "ss" CPU self snoop */
  47. #define X86_FEATURE_HT ( 0*32+28) /* Hyper-Threading */
  48. #define X86_FEATURE_ACC ( 0*32+29) /* "tm" Automatic clock control */
  49. #define X86_FEATURE_IA64 ( 0*32+30) /* IA-64 processor */
  50. #define X86_FEATURE_PBE ( 0*32+31) /* Pending Break Enable */
  51. /* AMD-defined CPU features, CPUID level 0x80000001, word 1 */
  52. /* Don't duplicate feature flags which are redundant with Intel! */
  53. #define X86_FEATURE_SYSCALL ( 1*32+11) /* SYSCALL/SYSRET */
  54. #define X86_FEATURE_MP ( 1*32+19) /* MP Capable. */
  55. #define X86_FEATURE_NX ( 1*32+20) /* Execute Disable */
  56. #define X86_FEATURE_MMXEXT ( 1*32+22) /* AMD MMX extensions */
  57. #define X86_FEATURE_FXSR_OPT ( 1*32+25) /* FXSAVE/FXRSTOR optimizations */
  58. #define X86_FEATURE_GBPAGES ( 1*32+26) /* "pdpe1gb" GB pages */
  59. #define X86_FEATURE_RDTSCP ( 1*32+27) /* RDTSCP */
  60. #define X86_FEATURE_LM ( 1*32+29) /* Long Mode (x86-64) */
  61. #define X86_FEATURE_3DNOWEXT ( 1*32+30) /* AMD 3DNow! extensions */
  62. #define X86_FEATURE_3DNOW ( 1*32+31) /* 3DNow! */
  63. /* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */
  64. #define X86_FEATURE_RECOVERY ( 2*32+ 0) /* CPU in recovery mode */
  65. #define X86_FEATURE_LONGRUN ( 2*32+ 1) /* Longrun power control */
  66. #define X86_FEATURE_LRTI ( 2*32+ 3) /* LongRun table interface */
  67. /* Other features, Linux-defined mapping, word 3 */
  68. /* This range is used for feature bits which conflict or are synthesized */
  69. #define X86_FEATURE_CXMMX ( 3*32+ 0) /* Cyrix MMX extensions */
  70. #define X86_FEATURE_K6_MTRR ( 3*32+ 1) /* AMD K6 nonstandard MTRRs */
  71. #define X86_FEATURE_CYRIX_ARR ( 3*32+ 2) /* Cyrix ARRs (= MTRRs) */
  72. #define X86_FEATURE_CENTAUR_MCR ( 3*32+ 3) /* Centaur MCRs (= MTRRs) */
  73. /* cpu types for specific tunings: */
  74. #define X86_FEATURE_K8 ( 3*32+ 4) /* "" Opteron, Athlon64 */
  75. #define X86_FEATURE_K7 ( 3*32+ 5) /* "" Athlon */
  76. #define X86_FEATURE_P3 ( 3*32+ 6) /* "" P3 */
  77. #define X86_FEATURE_P4 ( 3*32+ 7) /* "" P4 */
  78. #define X86_FEATURE_CONSTANT_TSC ( 3*32+ 8) /* TSC ticks at a constant rate */
  79. #define X86_FEATURE_UP ( 3*32+ 9) /* smp kernel running on up */
  80. /* free, was #define X86_FEATURE_FXSAVE_LEAK ( 3*32+10) * "" FXSAVE leaks FOP/FIP/FOP */
  81. #define X86_FEATURE_ARCH_PERFMON ( 3*32+11) /* Intel Architectural PerfMon */
  82. #define X86_FEATURE_PEBS ( 3*32+12) /* Precise-Event Based Sampling */
  83. #define X86_FEATURE_BTS ( 3*32+13) /* Branch Trace Store */
  84. #define X86_FEATURE_SYSCALL32 ( 3*32+14) /* "" syscall in ia32 userspace */
  85. #define X86_FEATURE_SYSENTER32 ( 3*32+15) /* "" sysenter in ia32 userspace */
  86. #define X86_FEATURE_REP_GOOD ( 3*32+16) /* rep microcode works well */
  87. #define X86_FEATURE_MFENCE_RDTSC ( 3*32+17) /* "" Mfence synchronizes RDTSC */
  88. #define X86_FEATURE_LFENCE_RDTSC ( 3*32+18) /* "" Lfence synchronizes RDTSC */
  89. /* free, was #define X86_FEATURE_11AP ( 3*32+19) * "" Bad local APIC aka 11AP */
  90. #define X86_FEATURE_NOPL ( 3*32+20) /* The NOPL (0F 1F) instructions */
  91. #define X86_FEATURE_ALWAYS ( 3*32+21) /* "" Always-present feature */
  92. #define X86_FEATURE_XTOPOLOGY ( 3*32+22) /* cpu topology enum extensions */
  93. #define X86_FEATURE_TSC_RELIABLE ( 3*32+23) /* TSC is known to be reliable */
  94. #define X86_FEATURE_NONSTOP_TSC ( 3*32+24) /* TSC does not stop in C states */
  95. /* free, was #define X86_FEATURE_CLFLUSH_MONITOR ( 3*32+25) * "" clflush reqd with monitor */
  96. #define X86_FEATURE_EXTD_APICID ( 3*32+26) /* has extended APICID (8 bits) */
  97. #define X86_FEATURE_AMD_DCM ( 3*32+27) /* multi-node processor */
  98. #define X86_FEATURE_APERFMPERF ( 3*32+28) /* APERFMPERF */
  99. #define X86_FEATURE_NONSTOP_TSC_S3 ( 3*32+30) /* TSC doesn't stop in S3 state */
  100. /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */
  101. #define X86_FEATURE_XMM3 ( 4*32+ 0) /* "pni" SSE-3 */
  102. #define X86_FEATURE_PCLMULQDQ ( 4*32+ 1) /* PCLMULQDQ instruction */
  103. #define X86_FEATURE_DTES64 ( 4*32+ 2) /* 64-bit Debug Store */
  104. #define X86_FEATURE_MWAIT ( 4*32+ 3) /* "monitor" Monitor/Mwait support */
  105. #define X86_FEATURE_DSCPL ( 4*32+ 4) /* "ds_cpl" CPL Qual. Debug Store */
  106. #define X86_FEATURE_VMX ( 4*32+ 5) /* Hardware virtualization */
  107. #define X86_FEATURE_SMX ( 4*32+ 6) /* Safer mode */
  108. #define X86_FEATURE_EST ( 4*32+ 7) /* Enhanced SpeedStep */
  109. #define X86_FEATURE_TM2 ( 4*32+ 8) /* Thermal Monitor 2 */
  110. #define X86_FEATURE_SSSE3 ( 4*32+ 9) /* Supplemental SSE-3 */
  111. #define X86_FEATURE_CID ( 4*32+10) /* Context ID */
  112. #define X86_FEATURE_SDBG ( 4*32+11) /* Silicon Debug */
  113. #define X86_FEATURE_FMA ( 4*32+12) /* Fused multiply-add */
  114. #define X86_FEATURE_CX16 ( 4*32+13) /* CMPXCHG16B */
  115. #define X86_FEATURE_XTPR ( 4*32+14) /* Send Task Priority Messages */
  116. #define X86_FEATURE_PDCM ( 4*32+15) /* Performance Capabilities */
  117. #define X86_FEATURE_PCID ( 4*32+17) /* Process Context Identifiers */
  118. #define X86_FEATURE_DCA ( 4*32+18) /* Direct Cache Access */
  119. #define X86_FEATURE_XMM4_1 ( 4*32+19) /* "sse4_1" SSE-4.1 */
  120. #define X86_FEATURE_XMM4_2 ( 4*32+20) /* "sse4_2" SSE-4.2 */
  121. #define X86_FEATURE_X2APIC ( 4*32+21) /* x2APIC */
  122. #define X86_FEATURE_MOVBE ( 4*32+22) /* MOVBE instruction */
  123. #define X86_FEATURE_POPCNT ( 4*32+23) /* POPCNT instruction */
  124. #define X86_FEATURE_TSC_DEADLINE_TIMER ( 4*32+24) /* Tsc deadline timer */
  125. #define X86_FEATURE_AES ( 4*32+25) /* AES instructions */
  126. #define X86_FEATURE_XSAVE ( 4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV */
  127. #define X86_FEATURE_OSXSAVE ( 4*32+27) /* "" XSAVE enabled in the OS */
  128. #define X86_FEATURE_AVX ( 4*32+28) /* Advanced Vector Extensions */
  129. #define X86_FEATURE_F16C ( 4*32+29) /* 16-bit fp conversions */
  130. #define X86_FEATURE_RDRAND ( 4*32+30) /* The RDRAND instruction */
  131. #define X86_FEATURE_HYPERVISOR ( 4*32+31) /* Running on a hypervisor */
  132. /* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */
  133. #define X86_FEATURE_XSTORE ( 5*32+ 2) /* "rng" RNG present (xstore) */
  134. #define X86_FEATURE_XSTORE_EN ( 5*32+ 3) /* "rng_en" RNG enabled */
  135. #define X86_FEATURE_XCRYPT ( 5*32+ 6) /* "ace" on-CPU crypto (xcrypt) */
  136. #define X86_FEATURE_XCRYPT_EN ( 5*32+ 7) /* "ace_en" on-CPU crypto enabled */
  137. #define X86_FEATURE_ACE2 ( 5*32+ 8) /* Advanced Cryptography Engine v2 */
  138. #define X86_FEATURE_ACE2_EN ( 5*32+ 9) /* ACE v2 enabled */
  139. #define X86_FEATURE_PHE ( 5*32+10) /* PadLock Hash Engine */
  140. #define X86_FEATURE_PHE_EN ( 5*32+11) /* PHE enabled */
  141. #define X86_FEATURE_PMM ( 5*32+12) /* PadLock Montgomery Multiplier */
  142. #define X86_FEATURE_PMM_EN ( 5*32+13) /* PMM enabled */
  143. /* More extended AMD flags: CPUID level 0x80000001, ecx, word 6 */
  144. #define X86_FEATURE_LAHF_LM ( 6*32+ 0) /* LAHF/SAHF in long mode */
  145. #define X86_FEATURE_CMP_LEGACY ( 6*32+ 1) /* If yes HyperThreading not valid */
  146. #define X86_FEATURE_SVM ( 6*32+ 2) /* Secure virtual machine */
  147. #define X86_FEATURE_EXTAPIC ( 6*32+ 3) /* Extended APIC space */
  148. #define X86_FEATURE_CR8_LEGACY ( 6*32+ 4) /* CR8 in 32-bit mode */
  149. #define X86_FEATURE_ABM ( 6*32+ 5) /* Advanced bit manipulation */
  150. #define X86_FEATURE_SSE4A ( 6*32+ 6) /* SSE-4A */
  151. #define X86_FEATURE_MISALIGNSSE ( 6*32+ 7) /* Misaligned SSE mode */
  152. #define X86_FEATURE_3DNOWPREFETCH ( 6*32+ 8) /* 3DNow prefetch instructions */
  153. #define X86_FEATURE_OSVW ( 6*32+ 9) /* OS Visible Workaround */
  154. #define X86_FEATURE_IBS ( 6*32+10) /* Instruction Based Sampling */
  155. #define X86_FEATURE_XOP ( 6*32+11) /* extended AVX instructions */
  156. #define X86_FEATURE_SKINIT ( 6*32+12) /* SKINIT/STGI instructions */
  157. #define X86_FEATURE_WDT ( 6*32+13) /* Watchdog timer */
  158. #define X86_FEATURE_LWP ( 6*32+15) /* Light Weight Profiling */
  159. #define X86_FEATURE_FMA4 ( 6*32+16) /* 4 operands MAC instructions */
  160. #define X86_FEATURE_TCE ( 6*32+17) /* translation cache extension */
  161. #define X86_FEATURE_NODEID_MSR ( 6*32+19) /* NodeId MSR */
  162. #define X86_FEATURE_TBM ( 6*32+21) /* trailing bit manipulations */
  163. #define X86_FEATURE_TOPOEXT ( 6*32+22) /* topology extensions CPUID leafs */
  164. #define X86_FEATURE_PERFCTR_CORE ( 6*32+23) /* core performance counter extensions */
  165. #define X86_FEATURE_PERFCTR_NB ( 6*32+24) /* NB performance counter extensions */
  166. #define X86_FEATURE_BPEXT (6*32+26) /* data breakpoint extension */
  167. #define X86_FEATURE_PERFCTR_L2 ( 6*32+28) /* L2 performance counter extensions */
  168. #define X86_FEATURE_MWAITX ( 6*32+29) /* MWAIT extension (MONITORX/MWAITX) */
  169. /*
  170. * Auxiliary flags: Linux defined - For features scattered in various
  171. * CPUID levels like 0x6, 0xA etc, word 7.
  172. *
  173. * Reuse free bits when adding new feature flags!
  174. */
  175. #define X86_FEATURE_CPB ( 7*32+ 2) /* AMD Core Performance Boost */
  176. #define X86_FEATURE_EPB ( 7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */
  177. #define X86_FEATURE_INVPCID_SINGLE ( 7*32+ 4) /* Effectively INVPCID && CR4.PCIDE=1 */
  178. #define X86_FEATURE_HW_PSTATE ( 7*32+ 8) /* AMD HW-PState */
  179. #define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
  180. #define X86_FEATURE_RETPOLINE ( 7*32+12) /* "" Generic Retpoline mitigation for Spectre variant 2 */
  181. #define X86_FEATURE_RETPOLINE_AMD ( 7*32+13) /* "" AMD Retpoline mitigation for Spectre variant 2 */
  182. #define X86_FEATURE_INTEL_PT ( 7*32+15) /* Intel Processor Trace */
  183. #define X86_FEATURE_RSB_CTXSW ( 7*32+19) /* "" Fill RSB on context switches */
  184. #define X86_FEATURE_MSR_SPEC_CTRL ( 7*32+16) /* "" MSR SPEC_CTRL is implemented */
  185. #define X86_FEATURE_SSBD ( 7*32+17) /* Speculative Store Bypass Disable */
  186. /* Because the ALTERNATIVE scheme is for members of the X86_FEATURE club... */
  187. #define X86_FEATURE_KAISER ( 7*32+31) /* CONFIG_PAGE_TABLE_ISOLATION w/o nokaiser */
  188. #define X86_FEATURE_USE_IBPB ( 7*32+21) /* "" Indirect Branch Prediction Barrier enabled*/
  189. #define X86_FEATURE_USE_IBRS_FW ( 7*32+22) /* "" Use IBRS during runtime firmware calls */
  190. #define X86_FEATURE_SPEC_STORE_BYPASS_DISABLE ( 7*32+23) /* "" Disable Speculative Store Bypass. */
  191. #define X86_FEATURE_LS_CFG_SSBD ( 7*32+24) /* "" AMD SSBD implementation */
  192. #define X86_FEATURE_IBRS ( 7*32+25) /* Indirect Branch Restricted Speculation */
  193. #define X86_FEATURE_IBPB ( 7*32+26) /* Indirect Branch Prediction Barrier */
  194. #define X86_FEATURE_STIBP ( 7*32+27) /* Single Thread Indirect Branch Predictors */
  195. #define X86_FEATURE_ZEN ( 7*32+28) /* "" CPU is AMD family 0x17 (Zen) */
  196. #define X86_FEATURE_L1TF_PTEINV ( 7*32+29) /* "" L1TF workaround PTE inversion */
  197. /* Virtualization flags: Linux defined, word 8 */
  198. #define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */
  199. #define X86_FEATURE_VNMI ( 8*32+ 1) /* Intel Virtual NMI */
  200. #define X86_FEATURE_FLEXPRIORITY ( 8*32+ 2) /* Intel FlexPriority */
  201. #define X86_FEATURE_EPT ( 8*32+ 3) /* Intel Extended Page Table */
  202. #define X86_FEATURE_VPID ( 8*32+ 4) /* Intel Virtual Processor ID */
  203. #define X86_FEATURE_VMMCALL ( 8*32+15) /* Prefer vmmcall to vmcall */
  204. #define X86_FEATURE_XENPV ( 8*32+16) /* "" Xen paravirtual guest */
  205. /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */
  206. #define X86_FEATURE_FSGSBASE ( 9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/
  207. #define X86_FEATURE_TSC_ADJUST ( 9*32+ 1) /* TSC adjustment MSR 0x3b */
  208. #define X86_FEATURE_BMI1 ( 9*32+ 3) /* 1st group bit manipulation extensions */
  209. #define X86_FEATURE_HLE ( 9*32+ 4) /* Hardware Lock Elision */
  210. #define X86_FEATURE_AVX2 ( 9*32+ 5) /* AVX2 instructions */
  211. #define X86_FEATURE_SMEP ( 9*32+ 7) /* Supervisor Mode Execution Protection */
  212. #define X86_FEATURE_BMI2 ( 9*32+ 8) /* 2nd group bit manipulation extensions */
  213. #define X86_FEATURE_ERMS ( 9*32+ 9) /* Enhanced REP MOVSB/STOSB */
  214. #define X86_FEATURE_INVPCID ( 9*32+10) /* Invalidate Processor Context ID */
  215. #define X86_FEATURE_RTM ( 9*32+11) /* Restricted Transactional Memory */
  216. #define X86_FEATURE_CQM ( 9*32+12) /* Cache QoS Monitoring */
  217. #define X86_FEATURE_MPX ( 9*32+14) /* Memory Protection Extension */
  218. #define X86_FEATURE_AVX512F ( 9*32+16) /* AVX-512 Foundation */
  219. #define X86_FEATURE_RDSEED ( 9*32+18) /* The RDSEED instruction */
  220. #define X86_FEATURE_ADX ( 9*32+19) /* The ADCX and ADOX instructions */
  221. #define X86_FEATURE_SMAP ( 9*32+20) /* Supervisor Mode Access Prevention */
  222. #define X86_FEATURE_PCOMMIT ( 9*32+22) /* PCOMMIT instruction */
  223. #define X86_FEATURE_CLFLUSHOPT ( 9*32+23) /* CLFLUSHOPT instruction */
  224. #define X86_FEATURE_CLWB ( 9*32+24) /* CLWB instruction */
  225. #define X86_FEATURE_AVX512PF ( 9*32+26) /* AVX-512 Prefetch */
  226. #define X86_FEATURE_AVX512ER ( 9*32+27) /* AVX-512 Exponential and Reciprocal */
  227. #define X86_FEATURE_AVX512CD ( 9*32+28) /* AVX-512 Conflict Detection */
  228. #define X86_FEATURE_SHA_NI ( 9*32+29) /* SHA1/SHA256 Instruction Extensions */
  229. /* Extended state features, CPUID level 0x0000000d:1 (eax), word 10 */
  230. #define X86_FEATURE_XSAVEOPT (10*32+ 0) /* XSAVEOPT */
  231. #define X86_FEATURE_XSAVEC (10*32+ 1) /* XSAVEC */
  232. #define X86_FEATURE_XGETBV1 (10*32+ 2) /* XGETBV with ECX = 1 */
  233. #define X86_FEATURE_XSAVES (10*32+ 3) /* XSAVES/XRSTORS */
  234. /* Intel-defined CPU QoS Sub-leaf, CPUID level 0x0000000F:0 (edx), word 11 */
  235. #define X86_FEATURE_CQM_LLC (11*32+ 1) /* LLC QoS if 1 */
  236. /* Intel-defined CPU QoS Sub-leaf, CPUID level 0x0000000F:1 (edx), word 12 */
  237. #define X86_FEATURE_CQM_OCCUP_LLC (12*32+ 0) /* LLC occupancy monitoring if 1 */
  238. /* AMD-defined CPU features, CPUID level 0x80000008 (ebx), word 13 */
  239. #define X86_FEATURE_CLZERO (13*32+0) /* CLZERO instruction */
  240. #define X86_FEATURE_AMD_IBPB (13*32+12) /* Indirect Branch Prediction Barrier */
  241. #define X86_FEATURE_AMD_IBRS (13*32+14) /* Indirect Branch Restricted Speculation */
  242. #define X86_FEATURE_AMD_STIBP (13*32+15) /* Single Thread Indirect Branch Predictors */
  243. #define X86_FEATURE_VIRT_SSBD (13*32+25) /* Virtualized Speculative Store Bypass Disable */
  244. /* Thermal and Power Management Leaf, CPUID level 0x00000006 (eax), word 14 */
  245. #define X86_FEATURE_DTHERM (14*32+ 0) /* Digital Thermal Sensor */
  246. #define X86_FEATURE_IDA (14*32+ 1) /* Intel Dynamic Acceleration */
  247. #define X86_FEATURE_ARAT (14*32+ 2) /* Always Running APIC Timer */
  248. #define X86_FEATURE_PLN (14*32+ 4) /* Intel Power Limit Notification */
  249. #define X86_FEATURE_PTS (14*32+ 6) /* Intel Package Thermal Status */
  250. #define X86_FEATURE_HWP (14*32+ 7) /* Intel Hardware P-states */
  251. #define X86_FEATURE_HWP_NOTIFY (14*32+ 8) /* HWP Notification */
  252. #define X86_FEATURE_HWP_ACT_WINDOW (14*32+ 9) /* HWP Activity Window */
  253. #define X86_FEATURE_HWP_EPP (14*32+10) /* HWP Energy Perf. Preference */
  254. #define X86_FEATURE_HWP_PKG_REQ (14*32+11) /* HWP Package Level Request */
  255. /* AMD SVM Feature Identification, CPUID level 0x8000000a (edx), word 15 */
  256. #define X86_FEATURE_NPT (15*32+ 0) /* Nested Page Table support */
  257. #define X86_FEATURE_LBRV (15*32+ 1) /* LBR Virtualization support */
  258. #define X86_FEATURE_SVML (15*32+ 2) /* "svm_lock" SVM locking MSR */
  259. #define X86_FEATURE_NRIPS (15*32+ 3) /* "nrip_save" SVM next_rip save */
  260. #define X86_FEATURE_TSCRATEMSR (15*32+ 4) /* "tsc_scale" TSC scaling support */
  261. #define X86_FEATURE_VMCBCLEAN (15*32+ 5) /* "vmcb_clean" VMCB clean bits support */
  262. #define X86_FEATURE_FLUSHBYASID (15*32+ 6) /* flush-by-ASID support */
  263. #define X86_FEATURE_DECODEASSISTS (15*32+ 7) /* Decode Assists support */
  264. #define X86_FEATURE_PAUSEFILTER (15*32+10) /* filtered pause intercept */
  265. #define X86_FEATURE_PFTHRESHOLD (15*32+12) /* pause filter threshold */
  266. /* Intel-defined CPU features, CPUID level 0x00000007:0 (ecx), word 16 */
  267. #define X86_FEATURE_PKU (16*32+ 3) /* Protection Keys for Userspace */
  268. #define X86_FEATURE_OSPKE (16*32+ 4) /* OS Protection Keys Enable */
  269. /* AMD-defined CPU features, CPUID level 0x80000007 (ebx), word 17 */
  270. #define X86_FEATURE_OVERFLOW_RECOV (17*32+0) /* MCA overflow recovery support */
  271. #define X86_FEATURE_SUCCOR (17*32+1) /* Uncorrectable error containment and recovery */
  272. #define X86_FEATURE_SMCA (17*32+3) /* Scalable MCA */
  273. /* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
  274. #define X86_FEATURE_AVX512_4VNNIW (18*32+ 2) /* AVX-512 Neural Network Instructions */
  275. #define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
  276. #define X86_FEATURE_SPEC_CTRL (18*32+26) /* "" Speculation Control (IBRS + IBPB) */
  277. #define X86_FEATURE_INTEL_STIBP (18*32+27) /* "" Single Thread Indirect Branch Predictors */
  278. #define X86_FEATURE_FLUSH_L1D (18*32+28) /* Flush L1D cache */
  279. #define X86_FEATURE_ARCH_CAPABILITIES (18*32+29) /* IA32_ARCH_CAPABILITIES MSR (Intel) */
  280. #define X86_FEATURE_SPEC_CTRL_SSBD (18*32+31) /* "" Speculative Store Bypass Disable */
  281. /*
  282. * BUG word(s)
  283. */
  284. #define X86_BUG(x) (NCAPINTS*32 + (x))
  285. #define X86_BUG_F00F X86_BUG(0) /* Intel F00F */
  286. #define X86_BUG_FDIV X86_BUG(1) /* FPU FDIV */
  287. #define X86_BUG_COMA X86_BUG(2) /* Cyrix 6x86 coma */
  288. #define X86_BUG_AMD_TLB_MMATCH X86_BUG(3) /* "tlb_mmatch" AMD Erratum 383 */
  289. #define X86_BUG_AMD_APIC_C1E X86_BUG(4) /* "apic_c1e" AMD Erratum 400 */
  290. #define X86_BUG_11AP X86_BUG(5) /* Bad local APIC aka 11AP */
  291. #define X86_BUG_FXSAVE_LEAK X86_BUG(6) /* FXSAVE leaks FOP/FIP/FOP */
  292. #define X86_BUG_CLFLUSH_MONITOR X86_BUG(7) /* AAI65, CLFLUSH required before MONITOR */
  293. #define X86_BUG_SYSRET_SS_ATTRS X86_BUG(8) /* SYSRET doesn't fix up SS attrs */
  294. #define X86_BUG_CPU_MELTDOWN X86_BUG(14) /* CPU is affected by meltdown attack and needs kernel page table isolation */
  295. #define X86_BUG_SPECTRE_V1 X86_BUG(15) /* CPU is affected by Spectre variant 1 attack with conditional branches */
  296. #define X86_BUG_SPECTRE_V2 X86_BUG(16) /* CPU is affected by Spectre variant 2 attack with indirect branches */
  297. #define X86_BUG_SPEC_STORE_BYPASS X86_BUG(17) /* CPU is affected by speculative store bypass attack */
  298. #define X86_BUG_L1TF X86_BUG(18) /* CPU is affected by L1 Terminal Fault */
  299. #endif /* _ASM_X86_CPUFEATURES_H */