1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_X86_MSR_INDEX_H 3 #define _ASM_X86_MSR_INDEX_H 4 5 /* 6 * CPU model specific register (MSR) numbers. 7 * 8 * Do not add new entries to this file unless the definitions are shared 9 * between multiple compilation units. 10 */ 11 12 /* x86-64 specific MSRs */ 13 #define MSR_EFER 0xc0000080 /* extended feature register */ 14 #define MSR_STAR 0xc0000081 /* legacy mode SYSCALL target */ 15 #define MSR_LSTAR 0xc0000082 /* long mode SYSCALL target */ 16 #define MSR_CSTAR 0xc0000083 /* compat mode SYSCALL target */ 17 #define MSR_SYSCALL_MASK 0xc0000084 /* EFLAGS mask for syscall */ 18 #define MSR_FS_BASE 0xc0000100 /* 64bit FS base */ 19 #define MSR_GS_BASE 0xc0000101 /* 64bit GS base */ 20 #define MSR_KERNEL_GS_BASE 0xc0000102 /* SwapGS GS shadow */ 21 #define MSR_TSC_AUX 0xc0000103 /* Auxiliary TSC */ 22 23 /* EFER bits: */ 24 #define _EFER_SCE 0 /* SYSCALL/SYSRET */ 25 #define _EFER_LME 8 /* Long mode enable */ 26 #define _EFER_LMA 10 /* Long mode active (read-only) */ 27 #define _EFER_NX 11 /* No execute enable */ 28 #define _EFER_SVME 12 /* Enable virtualization */ 29 #define _EFER_LMSLE 13 /* Long Mode Segment Limit Enable */ 30 #define _EFER_FFXSR 14 /* Enable Fast FXSAVE/FXRSTOR */ 31 32 #define EFER_SCE (1<<_EFER_SCE) 33 #define EFER_LME (1<<_EFER_LME) 34 #define EFER_LMA (1<<_EFER_LMA) 35 #define EFER_NX (1<<_EFER_NX) 36 #define EFER_SVME (1<<_EFER_SVME) 37 #define EFER_LMSLE (1<<_EFER_LMSLE) 38 #define EFER_FFXSR (1<<_EFER_FFXSR) 39 40 /* Intel MSRs. Some also available on other CPUs */ 41 42 #define MSR_IA32_SPEC_CTRL 0x00000048 /* Speculation Control */ 43 #define SPEC_CTRL_IBRS (1 << 0) /* Indirect Branch Restricted Speculation */ 44 #define SPEC_CTRL_STIBP (1 << 1) /* Single Thread Indirect Branch Predictors */ 45 46 #define MSR_IA32_PRED_CMD 0x00000049 /* Prediction Command */ 47 #define PRED_CMD_IBPB (1 << 0) /* Indirect Branch Prediction Barrier */ 48 49 #define MSR_PPIN_CTL 0x0000004e 50 #define MSR_PPIN 0x0000004f 51 52 #define MSR_IA32_PERFCTR0 0x000000c1 53 #define MSR_IA32_PERFCTR1 0x000000c2 54 #define MSR_FSB_FREQ 0x000000cd 55 #define MSR_PLATFORM_INFO 0x000000ce 56 #define MSR_PLATFORM_INFO_CPUID_FAULT_BIT 31 57 #define MSR_PLATFORM_INFO_CPUID_FAULT BIT_ULL(MSR_PLATFORM_INFO_CPUID_FAULT_BIT) 58 59 #define MSR_PKG_CST_CONFIG_CONTROL 0x000000e2 60 #define NHM_C3_AUTO_DEMOTE (1UL << 25) 61 #define NHM_C1_AUTO_DEMOTE (1UL << 26) 62 #define ATM_LNC_C6_AUTO_DEMOTE (1UL << 25) 63 #define SNB_C1_AUTO_UNDEMOTE (1UL << 27) 64 #define SNB_C3_AUTO_UNDEMOTE (1UL << 28) 65 66 #define MSR_MTRRcap 0x000000fe 67 68 #define MSR_IA32_ARCH_CAPABILITIES 0x0000010a 69 #define ARCH_CAP_RDCL_NO (1 << 0) /* Not susceptible to Meltdown */ 70 #define ARCH_CAP_IBRS_ALL (1 << 1) /* Enhanced IBRS support */ 71 72 #define MSR_IA32_BBL_CR_CTL 0x00000119 73 #define MSR_IA32_BBL_CR_CTL3 0x0000011e 74 75 #define MSR_IA32_SYSENTER_CS 0x00000174 76 #define MSR_IA32_SYSENTER_ESP 0x00000175 77 #define MSR_IA32_SYSENTER_EIP 0x00000176 78 79 #define MSR_IA32_MCG_CAP 0x00000179 80 #define MSR_IA32_MCG_STATUS 0x0000017a 81 #define MSR_IA32_MCG_CTL 0x0000017b 82 #define MSR_IA32_MCG_EXT_CTL 0x000004d0 83 84 #define MSR_OFFCORE_RSP_0 0x000001a6 85 #define MSR_OFFCORE_RSP_1 0x000001a7 86 #define MSR_TURBO_RATIO_LIMIT 0x000001ad 87 #define MSR_TURBO_RATIO_LIMIT1 0x000001ae 88 #define MSR_TURBO_RATIO_LIMIT2 0x000001af 89 90 #define MSR_LBR_SELECT 0x000001c8 91 #define MSR_LBR_TOS 0x000001c9 92 #define MSR_LBR_NHM_FROM 0x00000680 93 #define MSR_LBR_NHM_TO 0x000006c0 94 #define MSR_LBR_CORE_FROM 0x00000040 95 #define MSR_LBR_CORE_TO 0x00000060 96 97 #define MSR_LBR_INFO_0 0x00000dc0 /* ... 0xddf for _31 */ 98 #define LBR_INFO_MISPRED BIT_ULL(63) 99 #define LBR_INFO_IN_TX BIT_ULL(62) 100 #define LBR_INFO_ABORT BIT_ULL(61) 101 #define LBR_INFO_CYCLES 0xffff 102 103 #define MSR_IA32_PEBS_ENABLE 0x000003f1 104 #define MSR_IA32_DS_AREA 0x00000600 105 #define MSR_IA32_PERF_CAPABILITIES 0x00000345 106 #define MSR_PEBS_LD_LAT_THRESHOLD 0x000003f6 107 108 #define MSR_IA32_RTIT_CTL 0x00000570 109 #define MSR_IA32_RTIT_STATUS 0x00000571 110 #define MSR_IA32_RTIT_ADDR0_A 0x00000580 111 #define MSR_IA32_RTIT_ADDR0_B 0x00000581 112 #define MSR_IA32_RTIT_ADDR1_A 0x00000582 113 #define MSR_IA32_RTIT_ADDR1_B 0x00000583 114 #define MSR_IA32_RTIT_ADDR2_A 0x00000584 115 #define MSR_IA32_RTIT_ADDR2_B 0x00000585 116 #define MSR_IA32_RTIT_ADDR3_A 0x00000586 117 #define MSR_IA32_RTIT_ADDR3_B 0x00000587 118 #define MSR_IA32_RTIT_CR3_MATCH 0x00000572 119 #define MSR_IA32_RTIT_OUTPUT_BASE 0x00000560 120 #define MSR_IA32_RTIT_OUTPUT_MASK 0x00000561 121 122 #define MSR_MTRRfix64K_00000 0x00000250 123 #define MSR_MTRRfix16K_80000 0x00000258 124 #define MSR_MTRRfix16K_A0000 0x00000259 125 #define MSR_MTRRfix4K_C0000 0x00000268 126 #define MSR_MTRRfix4K_C8000 0x00000269 127 #define MSR_MTRRfix4K_D0000 0x0000026a 128 #define MSR_MTRRfix4K_D8000 0x0000026b 129 #define MSR_MTRRfix4K_E0000 0x0000026c 130 #define MSR_MTRRfix4K_E8000 0x0000026d 131 #define MSR_MTRRfix4K_F0000 0x0000026e 132 #define MSR_MTRRfix4K_F8000 0x0000026f 133 #define MSR_MTRRdefType 0x000002ff 134 135 #define MSR_IA32_CR_PAT 0x00000277 136 137 #define MSR_IA32_DEBUGCTLMSR 0x000001d9 138 #define MSR_IA32_LASTBRANCHFROMIP 0x000001db 139 #define MSR_IA32_LASTBRANCHTOIP 0x000001dc 140 #define MSR_IA32_LASTINTFROMIP 0x000001dd 141 #define MSR_IA32_LASTINTTOIP 0x000001de 142 143 /* DEBUGCTLMSR bits (others vary by model): */ 144 #define DEBUGCTLMSR_LBR (1UL << 0) /* last branch recording */ 145 #define DEBUGCTLMSR_BTF_SHIFT 1 146 #define DEBUGCTLMSR_BTF (1UL << 1) /* single-step on branches */ 147 #define DEBUGCTLMSR_TR (1UL << 6) 148 #define DEBUGCTLMSR_BTS (1UL << 7) 149 #define DEBUGCTLMSR_BTINT (1UL << 8) 150 #define DEBUGCTLMSR_BTS_OFF_OS (1UL << 9) 151 #define DEBUGCTLMSR_BTS_OFF_USR (1UL << 10) 152 #define DEBUGCTLMSR_FREEZE_LBRS_ON_PMI (1UL << 11) 153 #define DEBUGCTLMSR_FREEZE_IN_SMM_BIT 14 154 #define DEBUGCTLMSR_FREEZE_IN_SMM (1UL << DEBUGCTLMSR_FREEZE_IN_SMM_BIT) 155 156 #define MSR_PEBS_FRONTEND 0x000003f7 157 158 #define MSR_IA32_POWER_CTL 0x000001fc 159 160 #define MSR_IA32_MC0_CTL 0x00000400 161 #define MSR_IA32_MC0_STATUS 0x00000401 162 #define MSR_IA32_MC0_ADDR 0x00000402 163 #define MSR_IA32_MC0_MISC 0x00000403 164 165 /* C-state Residency Counters */ 166 #define MSR_PKG_C3_RESIDENCY 0x000003f8 167 #define MSR_PKG_C6_RESIDENCY 0x000003f9 168 #define MSR_ATOM_PKG_C6_RESIDENCY 0x000003fa 169 #define MSR_PKG_C7_RESIDENCY 0x000003fa 170 #define MSR_CORE_C3_RESIDENCY 0x000003fc 171 #define MSR_CORE_C6_RESIDENCY 0x000003fd 172 #define MSR_CORE_C7_RESIDENCY 0x000003fe 173 #define MSR_KNL_CORE_C6_RESIDENCY 0x000003ff 174 #define MSR_PKG_C2_RESIDENCY 0x0000060d 175 #define MSR_PKG_C8_RESIDENCY 0x00000630 176 #define MSR_PKG_C9_RESIDENCY 0x00000631 177 #define MSR_PKG_C10_RESIDENCY 0x00000632 178 179 /* Interrupt Response Limit */ 180 #define MSR_PKGC3_IRTL 0x0000060a 181 #define MSR_PKGC6_IRTL 0x0000060b 182 #define MSR_PKGC7_IRTL 0x0000060c 183 #define MSR_PKGC8_IRTL 0x00000633 184 #define MSR_PKGC9_IRTL 0x00000634 185 #define MSR_PKGC10_IRTL 0x00000635 186 187 /* Run Time Average Power Limiting (RAPL) Interface */ 188 189 #define MSR_RAPL_POWER_UNIT 0x00000606 190 191 #define MSR_PKG_POWER_LIMIT 0x00000610 192 #define MSR_PKG_ENERGY_STATUS 0x00000611 193 #define MSR_PKG_PERF_STATUS 0x00000613 194 #define MSR_PKG_POWER_INFO 0x00000614 195 196 #define MSR_DRAM_POWER_LIMIT 0x00000618 197 #define MSR_DRAM_ENERGY_STATUS 0x00000619 198 #define MSR_DRAM_PERF_STATUS 0x0000061b 199 #define MSR_DRAM_POWER_INFO 0x0000061c 200 201 #define MSR_PP0_POWER_LIMIT 0x00000638 202 #define MSR_PP0_ENERGY_STATUS 0x00000639 203 #define MSR_PP0_POLICY 0x0000063a 204 #define MSR_PP0_PERF_STATUS 0x0000063b 205 206 #define MSR_PP1_POWER_LIMIT 0x00000640 207 #define MSR_PP1_ENERGY_STATUS 0x00000641 208 #define MSR_PP1_POLICY 0x00000642 209 210 /* Config TDP MSRs */ 211 #define MSR_CONFIG_TDP_NOMINAL 0x00000648 212 #define MSR_CONFIG_TDP_LEVEL_1 0x00000649 213 #define MSR_CONFIG_TDP_LEVEL_2 0x0000064A 214 #define MSR_CONFIG_TDP_CONTROL 0x0000064B 215 #define MSR_TURBO_ACTIVATION_RATIO 0x0000064C 216 217 #define MSR_PLATFORM_ENERGY_STATUS 0x0000064D 218 219 #define MSR_PKG_WEIGHTED_CORE_C0_RES 0x00000658 220 #define MSR_PKG_ANY_CORE_C0_RES 0x00000659 221 #define MSR_PKG_ANY_GFXE_C0_RES 0x0000065A 222 #define MSR_PKG_BOTH_CORE_GFXE_C0_RES 0x0000065B 223 224 #define MSR_CORE_C1_RES 0x00000660 225 #define MSR_MODULE_C6_RES_MS 0x00000664 226 227 #define MSR_CC6_DEMOTION_POLICY_CONFIG 0x00000668 228 #define MSR_MC6_DEMOTION_POLICY_CONFIG 0x00000669 229 230 #define MSR_ATOM_CORE_RATIOS 0x0000066a 231 #define MSR_ATOM_CORE_VIDS 0x0000066b 232 #define MSR_ATOM_CORE_TURBO_RATIOS 0x0000066c 233 #define MSR_ATOM_CORE_TURBO_VIDS 0x0000066d 234 235 236 #define MSR_CORE_PERF_LIMIT_REASONS 0x00000690 237 #define MSR_GFX_PERF_LIMIT_REASONS 0x000006B0 238 #define MSR_RING_PERF_LIMIT_REASONS 0x000006B1 239 240 /* Hardware P state interface */ 241 #define MSR_PPERF 0x0000064e 242 #define MSR_PERF_LIMIT_REASONS 0x0000064f 243 #define MSR_PM_ENABLE 0x00000770 244 #define MSR_HWP_CAPABILITIES 0x00000771 245 #define MSR_HWP_REQUEST_PKG 0x00000772 246 #define MSR_HWP_INTERRUPT 0x00000773 247 #define MSR_HWP_REQUEST 0x00000774 248 #define MSR_HWP_STATUS 0x00000777 249 250 /* CPUID.6.EAX */ 251 #define HWP_BASE_BIT (1<<7) 252 #define HWP_NOTIFICATIONS_BIT (1<<8) 253 #define HWP_ACTIVITY_WINDOW_BIT (1<<9) 254 #define HWP_ENERGY_PERF_PREFERENCE_BIT (1<<10) 255 #define HWP_PACKAGE_LEVEL_REQUEST_BIT (1<<11) 256 257 /* IA32_HWP_CAPABILITIES */ 258 #define HWP_HIGHEST_PERF(x) (((x) >> 0) & 0xff) 259 #define HWP_GUARANTEED_PERF(x) (((x) >> 8) & 0xff) 260 #define HWP_MOSTEFFICIENT_PERF(x) (((x) >> 16) & 0xff) 261 #define HWP_LOWEST_PERF(x) (((x) >> 24) & 0xff) 262 263 /* IA32_HWP_REQUEST */ 264 #define HWP_MIN_PERF(x) (x & 0xff) 265 #define HWP_MAX_PERF(x) ((x & 0xff) << 8) 266 #define HWP_DESIRED_PERF(x) ((x & 0xff) << 16) 267 #define HWP_ENERGY_PERF_PREFERENCE(x) (((unsigned long long) x & 0xff) << 24) 268 #define HWP_EPP_PERFORMANCE 0x00 269 #define HWP_EPP_BALANCE_PERFORMANCE 0x80 270 #define HWP_EPP_BALANCE_POWERSAVE 0xC0 271 #define HWP_EPP_POWERSAVE 0xFF 272 #define HWP_ACTIVITY_WINDOW(x) ((unsigned long long)(x & 0xff3) << 32) 273 #define HWP_PACKAGE_CONTROL(x) ((unsigned long long)(x & 0x1) << 42) 274 275 /* IA32_HWP_STATUS */ 276 #define HWP_GUARANTEED_CHANGE(x) (x & 0x1) 277 #define HWP_EXCURSION_TO_MINIMUM(x) (x & 0x4) 278 279 /* IA32_HWP_INTERRUPT */ 280 #define HWP_CHANGE_TO_GUARANTEED_INT(x) (x & 0x1) 281 #define HWP_EXCURSION_TO_MINIMUM_INT(x) (x & 0x2) 282 283 #define MSR_AMD64_MC0_MASK 0xc0010044 284 285 #define MSR_IA32_MCx_CTL(x) (MSR_IA32_MC0_CTL + 4*(x)) 286 #define MSR_IA32_MCx_STATUS(x) (MSR_IA32_MC0_STATUS + 4*(x)) 287 #define MSR_IA32_MCx_ADDR(x) (MSR_IA32_MC0_ADDR + 4*(x)) 288 #define MSR_IA32_MCx_MISC(x) (MSR_IA32_MC0_MISC + 4*(x)) 289 290 #define MSR_AMD64_MCx_MASK(x) (MSR_AMD64_MC0_MASK + (x)) 291 292 /* These are consecutive and not in the normal 4er MCE bank block */ 293 #define MSR_IA32_MC0_CTL2 0x00000280 294 #define MSR_IA32_MCx_CTL2(x) (MSR_IA32_MC0_CTL2 + (x)) 295 296 #define MSR_P6_PERFCTR0 0x000000c1 297 #define MSR_P6_PERFCTR1 0x000000c2 298 #define MSR_P6_EVNTSEL0 0x00000186 299 #define MSR_P6_EVNTSEL1 0x00000187 300 301 #define MSR_KNC_PERFCTR0 0x00000020 302 #define MSR_KNC_PERFCTR1 0x00000021 303 #define MSR_KNC_EVNTSEL0 0x00000028 304 #define MSR_KNC_EVNTSEL1 0x00000029 305 306 /* Alternative perfctr range with full access. */ 307 #define MSR_IA32_PMC0 0x000004c1 308 309 /* AMD64 MSRs. Not complete. See the architecture manual for a more 310 complete list. */ 311 312 #define MSR_AMD64_PATCH_LEVEL 0x0000008b 313 #define MSR_AMD64_TSC_RATIO 0xc0000104 314 #define MSR_AMD64_NB_CFG 0xc001001f 315 #define MSR_AMD64_PATCH_LOADER 0xc0010020 316 #define MSR_AMD64_OSVW_ID_LENGTH 0xc0010140 317 #define MSR_AMD64_OSVW_STATUS 0xc0010141 318 #define MSR_AMD64_LS_CFG 0xc0011020 319 #define MSR_AMD64_DC_CFG 0xc0011022 320 #define MSR_AMD64_BU_CFG2 0xc001102a 321 #define MSR_AMD64_IBSFETCHCTL 0xc0011030 322 #define MSR_AMD64_IBSFETCHLINAD 0xc0011031 323 #define MSR_AMD64_IBSFETCHPHYSAD 0xc0011032 324 #define MSR_AMD64_IBSFETCH_REG_COUNT 3 325 #define MSR_AMD64_IBSFETCH_REG_MASK ((1UL<<MSR_AMD64_IBSFETCH_REG_COUNT)-1) 326 #define MSR_AMD64_IBSOPCTL 0xc0011033 327 #define MSR_AMD64_IBSOPRIP 0xc0011034 328 #define MSR_AMD64_IBSOPDATA 0xc0011035 329 #define MSR_AMD64_IBSOPDATA2 0xc0011036 330 #define MSR_AMD64_IBSOPDATA3 0xc0011037 331 #define MSR_AMD64_IBSDCLINAD 0xc0011038 332 #define MSR_AMD64_IBSDCPHYSAD 0xc0011039 333 #define MSR_AMD64_IBSOP_REG_COUNT 7 334 #define MSR_AMD64_IBSOP_REG_MASK ((1UL<<MSR_AMD64_IBSOP_REG_COUNT)-1) 335 #define MSR_AMD64_IBSCTL 0xc001103a 336 #define MSR_AMD64_IBSBRTARGET 0xc001103b 337 #define MSR_AMD64_IBSOPDATA4 0xc001103d 338 #define MSR_AMD64_IBS_REG_COUNT_MAX 8 /* includes MSR_AMD64_IBSBRTARGET */ 339 #define MSR_AMD64_SEV 0xc0010131 340 #define MSR_AMD64_SEV_ENABLED_BIT 0 341 #define MSR_AMD64_SEV_ENABLED BIT_ULL(MSR_AMD64_SEV_ENABLED_BIT) 342 343 /* Fam 17h MSRs */ 344 #define MSR_F17H_IRPERF 0xc00000e9 345 346 /* Fam 16h MSRs */ 347 #define MSR_F16H_L2I_PERF_CTL 0xc0010230 348 #define MSR_F16H_L2I_PERF_CTR 0xc0010231 349 #define MSR_F16H_DR1_ADDR_MASK 0xc0011019 350 #define MSR_F16H_DR2_ADDR_MASK 0xc001101a 351 #define MSR_F16H_DR3_ADDR_MASK 0xc001101b 352 #define MSR_F16H_DR0_ADDR_MASK 0xc0011027 353 354 /* Fam 15h MSRs */ 355 #define MSR_F15H_PERF_CTL 0xc0010200 356 #define MSR_F15H_PERF_CTR 0xc0010201 357 #define MSR_F15H_NB_PERF_CTL 0xc0010240 358 #define MSR_F15H_NB_PERF_CTR 0xc0010241 359 #define MSR_F15H_PTSC 0xc0010280 360 #define MSR_F15H_IC_CFG 0xc0011021 361 362 /* Fam 10h MSRs */ 363 #define MSR_FAM10H_MMIO_CONF_BASE 0xc0010058 364 #define FAM10H_MMIO_CONF_ENABLE (1<<0) 365 #define FAM10H_MMIO_CONF_BUSRANGE_MASK 0xf 366 #define FAM10H_MMIO_CONF_BUSRANGE_SHIFT 2 367 #define FAM10H_MMIO_CONF_BASE_MASK 0xfffffffULL 368 #define FAM10H_MMIO_CONF_BASE_SHIFT 20 369 #define MSR_FAM10H_NODE_ID 0xc001100c 370 #define MSR_F10H_DECFG 0xc0011029 371 #define MSR_F10H_DECFG_LFENCE_SERIALIZE_BIT 1 372 #define MSR_F10H_DECFG_LFENCE_SERIALIZE BIT_ULL(MSR_F10H_DECFG_LFENCE_SERIALIZE_BIT) 373 374 /* K8 MSRs */ 375 #define MSR_K8_TOP_MEM1 0xc001001a 376 #define MSR_K8_TOP_MEM2 0xc001001d 377 #define MSR_K8_SYSCFG 0xc0010010 378 #define MSR_K8_SYSCFG_MEM_ENCRYPT_BIT 23 379 #define MSR_K8_SYSCFG_MEM_ENCRYPT BIT_ULL(MSR_K8_SYSCFG_MEM_ENCRYPT_BIT) 380 #define MSR_K8_INT_PENDING_MSG 0xc0010055 381 /* C1E active bits in int pending message */ 382 #define K8_INTP_C1E_ACTIVE_MASK 0x18000000 383 #define MSR_K8_TSEG_ADDR 0xc0010112 384 #define MSR_K8_TSEG_MASK 0xc0010113 385 #define K8_MTRRFIXRANGE_DRAM_ENABLE 0x00040000 /* MtrrFixDramEn bit */ 386 #define K8_MTRRFIXRANGE_DRAM_MODIFY 0x00080000 /* MtrrFixDramModEn bit */ 387 #define K8_MTRR_RDMEM_WRMEM_MASK 0x18181818 /* Mask: RdMem|WrMem */ 388 389 /* K7 MSRs */ 390 #define MSR_K7_EVNTSEL0 0xc0010000 391 #define MSR_K7_PERFCTR0 0xc0010004 392 #define MSR_K7_EVNTSEL1 0xc0010001 393 #define MSR_K7_PERFCTR1 0xc0010005 394 #define MSR_K7_EVNTSEL2 0xc0010002 395 #define MSR_K7_PERFCTR2 0xc0010006 396 #define MSR_K7_EVNTSEL3 0xc0010003 397 #define MSR_K7_PERFCTR3 0xc0010007 398 #define MSR_K7_CLK_CTL 0xc001001b 399 #define MSR_K7_HWCR 0xc0010015 400 #define MSR_K7_HWCR_SMMLOCK_BIT 0 401 #define MSR_K7_HWCR_SMMLOCK BIT_ULL(MSR_K7_HWCR_SMMLOCK_BIT) 402 #define MSR_K7_FID_VID_CTL 0xc0010041 403 #define MSR_K7_FID_VID_STATUS 0xc0010042 404 405 /* K6 MSRs */ 406 #define MSR_K6_WHCR 0xc0000082 407 #define MSR_K6_UWCCR 0xc0000085 408 #define MSR_K6_EPMR 0xc0000086 409 #define MSR_K6_PSOR 0xc0000087 410 #define MSR_K6_PFIR 0xc0000088 411 412 /* Centaur-Hauls/IDT defined MSRs. */ 413 #define MSR_IDT_FCR1 0x00000107 414 #define MSR_IDT_FCR2 0x00000108 415 #define MSR_IDT_FCR3 0x00000109 416 #define MSR_IDT_FCR4 0x0000010a 417 418 #define MSR_IDT_MCR0 0x00000110 419 #define MSR_IDT_MCR1 0x00000111 420 #define MSR_IDT_MCR2 0x00000112 421 #define MSR_IDT_MCR3 0x00000113 422 #define MSR_IDT_MCR4 0x00000114 423 #define MSR_IDT_MCR5 0x00000115 424 #define MSR_IDT_MCR6 0x00000116 425 #define MSR_IDT_MCR7 0x00000117 426 #define MSR_IDT_MCR_CTRL 0x00000120 427 428 /* VIA Cyrix defined MSRs*/ 429 #define MSR_VIA_FCR 0x00001107 430 #define MSR_VIA_LONGHAUL 0x0000110a 431 #define MSR_VIA_RNG 0x0000110b 432 #define MSR_VIA_BCR2 0x00001147 433 434 /* Transmeta defined MSRs */ 435 #define MSR_TMTA_LONGRUN_CTRL 0x80868010 436 #define MSR_TMTA_LONGRUN_FLAGS 0x80868011 437 #define MSR_TMTA_LRTI_READOUT 0x80868018 438 #define MSR_TMTA_LRTI_VOLT_MHZ 0x8086801a 439 440 /* Intel defined MSRs. */ 441 #define MSR_IA32_P5_MC_ADDR 0x00000000 442 #define MSR_IA32_P5_MC_TYPE 0x00000001 443 #define MSR_IA32_TSC 0x00000010 444 #define MSR_IA32_PLATFORM_ID 0x00000017 445 #define MSR_IA32_EBL_CR_POWERON 0x0000002a 446 #define MSR_EBC_FREQUENCY_ID 0x0000002c 447 #define MSR_SMI_COUNT 0x00000034 448 #define MSR_IA32_FEATURE_CONTROL 0x0000003a 449 #define MSR_IA32_TSC_ADJUST 0x0000003b 450 #define MSR_IA32_BNDCFGS 0x00000d90 451 452 #define MSR_IA32_BNDCFGS_RSVD 0x00000ffc 453 454 #define MSR_IA32_XSS 0x00000da0 455 456 #define FEATURE_CONTROL_LOCKED (1<<0) 457 #define FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX (1<<1) 458 #define FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX (1<<2) 459 #define FEATURE_CONTROL_LMCE (1<<20) 460 461 #define MSR_IA32_APICBASE 0x0000001b 462 #define MSR_IA32_APICBASE_BSP (1<<8) 463 #define MSR_IA32_APICBASE_ENABLE (1<<11) 464 #define MSR_IA32_APICBASE_BASE (0xfffff<<12) 465 466 #define MSR_IA32_TSCDEADLINE 0x000006e0 467 468 #define MSR_IA32_UCODE_WRITE 0x00000079 469 #define MSR_IA32_UCODE_REV 0x0000008b 470 471 #define MSR_IA32_SMM_MONITOR_CTL 0x0000009b 472 #define MSR_IA32_SMBASE 0x0000009e 473 474 #define MSR_IA32_PERF_STATUS 0x00000198 475 #define MSR_IA32_PERF_CTL 0x00000199 476 #define INTEL_PERF_CTL_MASK 0xffff 477 #define MSR_AMD_PSTATE_DEF_BASE 0xc0010064 478 #define MSR_AMD_PERF_STATUS 0xc0010063 479 #define MSR_AMD_PERF_CTL 0xc0010062 480 481 #define MSR_IA32_MPERF 0x000000e7 482 #define MSR_IA32_APERF 0x000000e8 483 484 #define MSR_IA32_THERM_CONTROL 0x0000019a 485 #define MSR_IA32_THERM_INTERRUPT 0x0000019b 486 487 #define THERM_INT_HIGH_ENABLE (1 << 0) 488 #define THERM_INT_LOW_ENABLE (1 << 1) 489 #define THERM_INT_PLN_ENABLE (1 << 24) 490 491 #define MSR_IA32_THERM_STATUS 0x0000019c 492 493 #define THERM_STATUS_PROCHOT (1 << 0) 494 #define THERM_STATUS_POWER_LIMIT (1 << 10) 495 496 #define MSR_THERM2_CTL 0x0000019d 497 498 #define MSR_THERM2_CTL_TM_SELECT (1ULL << 16) 499 500 #define MSR_IA32_MISC_ENABLE 0x000001a0 501 502 #define MSR_IA32_TEMPERATURE_TARGET 0x000001a2 503 504 #define MSR_MISC_FEATURE_CONTROL 0x000001a4 505 #define MSR_MISC_PWR_MGMT 0x000001aa 506 507 #define MSR_IA32_ENERGY_PERF_BIAS 0x000001b0 508 #define ENERGY_PERF_BIAS_PERFORMANCE 0 509 #define ENERGY_PERF_BIAS_BALANCE_PERFORMANCE 4 510 #define ENERGY_PERF_BIAS_NORMAL 6 511 #define ENERGY_PERF_BIAS_BALANCE_POWERSAVE 8 512 #define ENERGY_PERF_BIAS_POWERSAVE 15 513 514 #define MSR_IA32_PACKAGE_THERM_STATUS 0x000001b1 515 516 #define PACKAGE_THERM_STATUS_PROCHOT (1 << 0) 517 #define PACKAGE_THERM_STATUS_POWER_LIMIT (1 << 10) 518 519 #define MSR_IA32_PACKAGE_THERM_INTERRUPT 0x000001b2 520 521 #define PACKAGE_THERM_INT_HIGH_ENABLE (1 << 0) 522 #define PACKAGE_THERM_INT_LOW_ENABLE (1 << 1) 523 #define PACKAGE_THERM_INT_PLN_ENABLE (1 << 24) 524 525 /* Thermal Thresholds Support */ 526 #define THERM_INT_THRESHOLD0_ENABLE (1 << 15) 527 #define THERM_SHIFT_THRESHOLD0 8 528 #define THERM_MASK_THRESHOLD0 (0x7f << THERM_SHIFT_THRESHOLD0) 529 #define THERM_INT_THRESHOLD1_ENABLE (1 << 23) 530 #define THERM_SHIFT_THRESHOLD1 16 531 #define THERM_MASK_THRESHOLD1 (0x7f << THERM_SHIFT_THRESHOLD1) 532 #define THERM_STATUS_THRESHOLD0 (1 << 6) 533 #define THERM_LOG_THRESHOLD0 (1 << 7) 534 #define THERM_STATUS_THRESHOLD1 (1 << 8) 535 #define THERM_LOG_THRESHOLD1 (1 << 9) 536 537 /* MISC_ENABLE bits: architectural */ 538 #define MSR_IA32_MISC_ENABLE_FAST_STRING_BIT 0 539 #define MSR_IA32_MISC_ENABLE_FAST_STRING (1ULL << MSR_IA32_MISC_ENABLE_FAST_STRING_BIT) 540 #define MSR_IA32_MISC_ENABLE_TCC_BIT 1 541 #define MSR_IA32_MISC_ENABLE_TCC (1ULL << MSR_IA32_MISC_ENABLE_TCC_BIT) 542 #define MSR_IA32_MISC_ENABLE_EMON_BIT 7 543 #define MSR_IA32_MISC_ENABLE_EMON (1ULL << MSR_IA32_MISC_ENABLE_EMON_BIT) 544 #define MSR_IA32_MISC_ENABLE_BTS_UNAVAIL_BIT 11 545 #define MSR_IA32_MISC_ENABLE_BTS_UNAVAIL (1ULL << MSR_IA32_MISC_ENABLE_BTS_UNAVAIL_BIT) 546 #define MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL_BIT 12 547 #define MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL (1ULL << MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL_BIT) 548 #define MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP_BIT 16 549 #define MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP (1ULL << MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP_BIT) 550 #define MSR_IA32_MISC_ENABLE_MWAIT_BIT 18 551 #define MSR_IA32_MISC_ENABLE_MWAIT (1ULL << MSR_IA32_MISC_ENABLE_MWAIT_BIT) 552 #define MSR_IA32_MISC_ENABLE_LIMIT_CPUID_BIT 22 553 #define MSR_IA32_MISC_ENABLE_LIMIT_CPUID (1ULL << MSR_IA32_MISC_ENABLE_LIMIT_CPUID_BIT) 554 #define MSR_IA32_MISC_ENABLE_XTPR_DISABLE_BIT 23 555 #define MSR_IA32_MISC_ENABLE_XTPR_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_XTPR_DISABLE_BIT) 556 #define MSR_IA32_MISC_ENABLE_XD_DISABLE_BIT 34 557 #define MSR_IA32_MISC_ENABLE_XD_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_XD_DISABLE_BIT) 558 559 /* MISC_ENABLE bits: model-specific, meaning may vary from core to core */ 560 #define MSR_IA32_MISC_ENABLE_X87_COMPAT_BIT 2 561 #define MSR_IA32_MISC_ENABLE_X87_COMPAT (1ULL << MSR_IA32_MISC_ENABLE_X87_COMPAT_BIT) 562 #define MSR_IA32_MISC_ENABLE_TM1_BIT 3 563 #define MSR_IA32_MISC_ENABLE_TM1 (1ULL << MSR_IA32_MISC_ENABLE_TM1_BIT) 564 #define MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE_BIT 4 565 #define MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE_BIT) 566 #define MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE_BIT 6 567 #define MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE_BIT) 568 #define MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK_BIT 8 569 #define MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK (1ULL << MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK_BIT) 570 #define MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE_BIT 9 571 #define MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE_BIT) 572 #define MSR_IA32_MISC_ENABLE_FERR_BIT 10 573 #define MSR_IA32_MISC_ENABLE_FERR (1ULL << MSR_IA32_MISC_ENABLE_FERR_BIT) 574 #define MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX_BIT 10 575 #define MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX (1ULL << MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX_BIT) 576 #define MSR_IA32_MISC_ENABLE_TM2_BIT 13 577 #define MSR_IA32_MISC_ENABLE_TM2 (1ULL << MSR_IA32_MISC_ENABLE_TM2_BIT) 578 #define MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE_BIT 19 579 #define MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE_BIT) 580 #define MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK_BIT 20 581 #define MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK (1ULL << MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK_BIT) 582 #define MSR_IA32_MISC_ENABLE_L1D_CONTEXT_BIT 24 583 #define MSR_IA32_MISC_ENABLE_L1D_CONTEXT (1ULL << MSR_IA32_MISC_ENABLE_L1D_CONTEXT_BIT) 584 #define MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE_BIT 37 585 #define MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE_BIT) 586 #define MSR_IA32_MISC_ENABLE_TURBO_DISABLE_BIT 38 587 #define MSR_IA32_MISC_ENABLE_TURBO_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_TURBO_DISABLE_BIT) 588 #define MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE_BIT 39 589 #define MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE_BIT) 590 591 /* MISC_FEATURES_ENABLES non-architectural features */ 592 #define MSR_MISC_FEATURES_ENABLES 0x00000140 593 594 #define MSR_MISC_FEATURES_ENABLES_CPUID_FAULT_BIT 0 595 #define MSR_MISC_FEATURES_ENABLES_CPUID_FAULT BIT_ULL(MSR_MISC_FEATURES_ENABLES_CPUID_FAULT_BIT) 596 #define MSR_MISC_FEATURES_ENABLES_RING3MWAIT_BIT 1 597 598 #define MSR_IA32_TSC_DEADLINE 0x000006E0 599 600 /* P4/Xeon+ specific */ 601 #define MSR_IA32_MCG_EAX 0x00000180 602 #define MSR_IA32_MCG_EBX 0x00000181 603 #define MSR_IA32_MCG_ECX 0x00000182 604 #define MSR_IA32_MCG_EDX 0x00000183 605 #define MSR_IA32_MCG_ESI 0x00000184 606 #define MSR_IA32_MCG_EDI 0x00000185 607 #define MSR_IA32_MCG_EBP 0x00000186 608 #define MSR_IA32_MCG_ESP 0x00000187 609 #define MSR_IA32_MCG_EFLAGS 0x00000188 610 #define MSR_IA32_MCG_EIP 0x00000189 611 #define MSR_IA32_MCG_RESERVED 0x0000018a 612 613 /* Pentium IV performance counter MSRs */ 614 #define MSR_P4_BPU_PERFCTR0 0x00000300 615 #define MSR_P4_BPU_PERFCTR1 0x00000301 616 #define MSR_P4_BPU_PERFCTR2 0x00000302 617 #define MSR_P4_BPU_PERFCTR3 0x00000303 618 #define MSR_P4_MS_PERFCTR0 0x00000304 619 #define MSR_P4_MS_PERFCTR1 0x00000305 620 #define MSR_P4_MS_PERFCTR2 0x00000306 621 #define MSR_P4_MS_PERFCTR3 0x00000307 622 #define MSR_P4_FLAME_PERFCTR0 0x00000308 623 #define MSR_P4_FLAME_PERFCTR1 0x00000309 624 #define MSR_P4_FLAME_PERFCTR2 0x0000030a 625 #define MSR_P4_FLAME_PERFCTR3 0x0000030b 626 #define MSR_P4_IQ_PERFCTR0 0x0000030c 627 #define MSR_P4_IQ_PERFCTR1 0x0000030d 628 #define MSR_P4_IQ_PERFCTR2 0x0000030e 629 #define MSR_P4_IQ_PERFCTR3 0x0000030f 630 #define MSR_P4_IQ_PERFCTR4 0x00000310 631 #define MSR_P4_IQ_PERFCTR5 0x00000311 632 #define MSR_P4_BPU_CCCR0 0x00000360 633 #define MSR_P4_BPU_CCCR1 0x00000361 634 #define MSR_P4_BPU_CCCR2 0x00000362 635 #define MSR_P4_BPU_CCCR3 0x00000363 636 #define MSR_P4_MS_CCCR0 0x00000364 637 #define MSR_P4_MS_CCCR1 0x00000365 638 #define MSR_P4_MS_CCCR2 0x00000366 639 #define MSR_P4_MS_CCCR3 0x00000367 640 #define MSR_P4_FLAME_CCCR0 0x00000368 641 #define MSR_P4_FLAME_CCCR1 0x00000369 642 #define MSR_P4_FLAME_CCCR2 0x0000036a 643 #define MSR_P4_FLAME_CCCR3 0x0000036b 644 #define MSR_P4_IQ_CCCR0 0x0000036c 645 #define MSR_P4_IQ_CCCR1 0x0000036d 646 #define MSR_P4_IQ_CCCR2 0x0000036e 647 #define MSR_P4_IQ_CCCR3 0x0000036f 648 #define MSR_P4_IQ_CCCR4 0x00000370 649 #define MSR_P4_IQ_CCCR5 0x00000371 650 #define MSR_P4_ALF_ESCR0 0x000003ca 651 #define MSR_P4_ALF_ESCR1 0x000003cb 652 #define MSR_P4_BPU_ESCR0 0x000003b2 653 #define MSR_P4_BPU_ESCR1 0x000003b3 654 #define MSR_P4_BSU_ESCR0 0x000003a0 655 #define MSR_P4_BSU_ESCR1 0x000003a1 656 #define MSR_P4_CRU_ESCR0 0x000003b8 657 #define MSR_P4_CRU_ESCR1 0x000003b9 658 #define MSR_P4_CRU_ESCR2 0x000003cc 659 #define MSR_P4_CRU_ESCR3 0x000003cd 660 #define MSR_P4_CRU_ESCR4 0x000003e0 661 #define MSR_P4_CRU_ESCR5 0x000003e1 662 #define MSR_P4_DAC_ESCR0 0x000003a8 663 #define MSR_P4_DAC_ESCR1 0x000003a9 664 #define MSR_P4_FIRM_ESCR0 0x000003a4 665 #define MSR_P4_FIRM_ESCR1 0x000003a5 666 #define MSR_P4_FLAME_ESCR0 0x000003a6 667 #define MSR_P4_FLAME_ESCR1 0x000003a7 668 #define MSR_P4_FSB_ESCR0 0x000003a2 669 #define MSR_P4_FSB_ESCR1 0x000003a3 670 #define MSR_P4_IQ_ESCR0 0x000003ba 671 #define MSR_P4_IQ_ESCR1 0x000003bb 672 #define MSR_P4_IS_ESCR0 0x000003b4 673 #define MSR_P4_IS_ESCR1 0x000003b5 674 #define MSR_P4_ITLB_ESCR0 0x000003b6 675 #define MSR_P4_ITLB_ESCR1 0x000003b7 676 #define MSR_P4_IX_ESCR0 0x000003c8 677 #define MSR_P4_IX_ESCR1 0x000003c9 678 #define MSR_P4_MOB_ESCR0 0x000003aa 679 #define MSR_P4_MOB_ESCR1 0x000003ab 680 #define MSR_P4_MS_ESCR0 0x000003c0 681 #define MSR_P4_MS_ESCR1 0x000003c1 682 #define MSR_P4_PMH_ESCR0 0x000003ac 683 #define MSR_P4_PMH_ESCR1 0x000003ad 684 #define MSR_P4_RAT_ESCR0 0x000003bc 685 #define MSR_P4_RAT_ESCR1 0x000003bd 686 #define MSR_P4_SAAT_ESCR0 0x000003ae 687 #define MSR_P4_SAAT_ESCR1 0x000003af 688 #define MSR_P4_SSU_ESCR0 0x000003be 689 #define MSR_P4_SSU_ESCR1 0x000003bf /* guess: not in manual */ 690 691 #define MSR_P4_TBPU_ESCR0 0x000003c2 692 #define MSR_P4_TBPU_ESCR1 0x000003c3 693 #define MSR_P4_TC_ESCR0 0x000003c4 694 #define MSR_P4_TC_ESCR1 0x000003c5 695 #define MSR_P4_U2L_ESCR0 0x000003b0 696 #define MSR_P4_U2L_ESCR1 0x000003b1 697 698 #define MSR_P4_PEBS_MATRIX_VERT 0x000003f2 699 700 /* Intel Core-based CPU performance counters */ 701 #define MSR_CORE_PERF_FIXED_CTR0 0x00000309 702 #define MSR_CORE_PERF_FIXED_CTR1 0x0000030a 703 #define MSR_CORE_PERF_FIXED_CTR2 0x0000030b 704 #define MSR_CORE_PERF_FIXED_CTR_CTRL 0x0000038d 705 #define MSR_CORE_PERF_GLOBAL_STATUS 0x0000038e 706 #define MSR_CORE_PERF_GLOBAL_CTRL 0x0000038f 707 #define MSR_CORE_PERF_GLOBAL_OVF_CTRL 0x00000390 708 709 /* Geode defined MSRs */ 710 #define MSR_GEODE_BUSCONT_CONF0 0x00001900 711 712 /* Intel VT MSRs */ 713 #define MSR_IA32_VMX_BASIC 0x00000480 714 #define MSR_IA32_VMX_PINBASED_CTLS 0x00000481 715 #define MSR_IA32_VMX_PROCBASED_CTLS 0x00000482 716 #define MSR_IA32_VMX_EXIT_CTLS 0x00000483 717 #define MSR_IA32_VMX_ENTRY_CTLS 0x00000484 718 #define MSR_IA32_VMX_MISC 0x00000485 719 #define MSR_IA32_VMX_CR0_FIXED0 0x00000486 720 #define MSR_IA32_VMX_CR0_FIXED1 0x00000487 721 #define MSR_IA32_VMX_CR4_FIXED0 0x00000488 722 #define MSR_IA32_VMX_CR4_FIXED1 0x00000489 723 #define MSR_IA32_VMX_VMCS_ENUM 0x0000048a 724 #define MSR_IA32_VMX_PROCBASED_CTLS2 0x0000048b 725 #define MSR_IA32_VMX_EPT_VPID_CAP 0x0000048c 726 #define MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x0000048d 727 #define MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x0000048e 728 #define MSR_IA32_VMX_TRUE_EXIT_CTLS 0x0000048f 729 #define MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x00000490 730 #define MSR_IA32_VMX_VMFUNC 0x00000491 731 732 /* VMX_BASIC bits and bitmasks */ 733 #define VMX_BASIC_VMCS_SIZE_SHIFT 32 734 #define VMX_BASIC_TRUE_CTLS (1ULL << 55) 735 #define VMX_BASIC_64 0x0001000000000000LLU 736 #define VMX_BASIC_MEM_TYPE_SHIFT 50 737 #define VMX_BASIC_MEM_TYPE_MASK 0x003c000000000000LLU 738 #define VMX_BASIC_MEM_TYPE_WB 6LLU 739 #define VMX_BASIC_INOUT 0x0040000000000000LLU 740 741 /* MSR_IA32_VMX_MISC bits */ 742 #define MSR_IA32_VMX_MISC_VMWRITE_SHADOW_RO_FIELDS (1ULL << 29) 743 #define MSR_IA32_VMX_MISC_PREEMPTION_TIMER_SCALE 0x1F 744 /* AMD-V MSRs */ 745 746 #define MSR_VM_CR 0xc0010114 747 #define MSR_VM_IGNNE 0xc0010115 748 #define MSR_VM_HSAVE_PA 0xc0010117 749 750 #endif /* _ASM_X86_MSR_INDEX_H */ 751