util/inteltool/cpu.c

   1 /*
   2  * inteltool - dump all registers on an Intel CPU + chipset based system.
   3  *
   4  * Copyright (C) 2008-2010 by coresystems GmbH
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19
  20 #include <fcntl.h>
  21 #include <unistd.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <errno.h>
  26
  27 #include "inteltool.h"
  28
  29 int fd_msr;
  30
  31 unsigned int cpuid(unsigned int op)
  32 {
  33         uint32_t ret;
  34
  35 #if defined(__DARWIN__) && !defined(__LP64__)
  36         asm volatile (
  37                 "pushl %%ebx\n"
  38                 "cpuid\n"
  39                 "popl %%ebx\n"
  40                 : "=a" (ret) : "a" (op) : "%ecx", "%edx"
  41         );
  42 #else
  43         asm ("cpuid" : "=a" (ret) : "a" (op) : "%ebx", "%ecx", "%edx");
  44 #endif
  45
  46         return ret;
  47 }
  48
  49 #ifndef __DARWIN__
  50 int msr_readerror = 0;
  51
  52 msr_t rdmsr(int addr)
  53 {
  54         uint8_t buf[8];
  55         msr_t msr = { 0xffffffff, 0xffffffff };
  56
  57         if (lseek(fd_msr, (off_t) addr, SEEK_SET) == -1) {
  58                 perror("Could not lseek() to MSR");
  59                 close(fd_msr);
  60                 exit(1);
  61         }
  62
  63         if (read(fd_msr, buf, 8) == 8) {
  64                 msr.lo = *(uint32_t *)buf;
  65                 msr.hi = *(uint32_t *)(buf + 4);
  66
  67                 return msr;
  68         }
  69
  70         if (errno == 5) {
  71                 printf(" (*)"); // Not all bits of the MSR could be read
  72                 msr_readerror = 1;
  73         } else {
  74                 // A severe error.
  75                 perror("Could not read() MSR");
  76                 close(fd_msr);
  77                 exit(1);
  78         }
  79
  80         return msr;
  81 }
  82 #endif
  83
  84 int print_intel_core_msrs(void)
  85 {
  86         unsigned int i, core, id;
  87         msr_t msr;
  88
  89 #define IA32_PLATFORM_ID                0x0017
  90 #define EBL_CR_POWERON                  0x002a
  91 #define FSB_CLK_STS                     0x00cd
  92 #define IA32_TIME_STAMP_COUNTER         0x0010
  93 #define IA32_APIC_BASE                  0x001b
  94
  95         typedef struct {
  96                 int number;
  97                 char *name;
  98         } msr_entry_t;
  99
 100         /* Pentium III */
 101         static const msr_entry_t model67x_global_msrs[] = {
 102                 { 0x0000, "IA32_P5_MC_ADDR" },
 103                 { 0x0001, "IA32_P5_MC_TYPE" },
 104                 { 0x0010, "IA32_TIME_STAMP_COUNTER" },
 105                 { 0x0017, "IA32_PLATFORM_ID" },
 106                 { 0x001b, "IA32_APIC_BASE" },
 107                 { 0x002a, "EBL_CR_POWERON" },
 108                 { 0x0033, "TEST_CTL" },
 109                 //{ 0x0079, "IA32_BIOS_UPDT_TRIG" }, // Seems to be RO
 110                 { 0x0088, "BBL_CR_D0" },
 111                 { 0x0089, "BBL_CR_D1" },
 112                 { 0x008a, "BBL_CR_D2" },
 113                 { 0x008b, "IA32_BIOS_SIGN_ID" },
 114                 { 0x00c1, "PERFCTR0" },
 115                 { 0x00c2, "PERFCTR1" },
 116                 { 0x00fe, "IA32_MTRRCAP" },
 117                 { 0x0116, "BBL_CR_ADDR" },
 118                 { 0x0118, "BBL_CR_DECC" },
 119                 { 0x0119, "BBL_CR_CTL" },
 120                 //{ 0x011a, "BBL_CR_TRIG" },
 121                 { 0x011b, "BBL_CR_BUSY" },
 122                 { 0x011e, "BBL_CR_CTL3" },
 123                 { 0x0174, "IA32_SYSENTER_CS" },
 124                 { 0x0175, "IA32_SYSENTER_ESP" },
 125                 { 0x0176, "IA32_SYSENTER_EIP" },
 126                 { 0x0179, "IA32_MCG_CAP" },
 127                 { 0x017a, "IA32_MCG_STATUS" },
 128                 { 0x017b, "IA32_MCG_CTL" },
 129                 { 0x0186, "IA32_PERF_EVNTSEL0" },
 130                 { 0x0187, "IA32_PERF_EVNTSEL1" },
 131                 { 0x01d9, "IA32_DEBUGCTL" },
 132                 { 0x01db, "MSR_LASTBRANCHFROMIP" },
 133                 { 0x01dc, "MSR_LASTBRANCHTOIP" },
 134                 { 0x01dd, "MSR_LASTINTFROMIP" },
 135                 { 0x01de, "MSR_LASTINTTOIP" },
 136                 { 0x01e0, "MSR_ROB_CR_BKUPTMPDR6" },
 137                 { 0x0200, "IA32_MTRR_PHYSBASE0" },
 138                 { 0x0201, "IA32_MTRR_PHYSMASK0" },
 139                 { 0x0202, "IA32_MTRR_PHYSBASE1" },
 140                 { 0x0203, "IA32_MTRR_PHYSMASK1" },
 141                 { 0x0204, "IA32_MTRR_PHYSBASE2" },
 142                 { 0x0205, "IA32_MTRR_PHYSMASK2" },
 143                 { 0x0206, "IA32_MTRR_PHYSBASE3" },
 144                 { 0x0207, "IA32_MTRR_PHYSMASK3" },
 145                 { 0x0208, "IA32_MTRR_PHYSBASE4" },
 146                 { 0x0209, "IA32_MTRR_PHYSMASK4" },
 147                 { 0x020a, "IA32_MTRR_PHYSBASE5" },
 148                 { 0x020b, "IA32_MTRR_PHYSMASK5" },
 149                 { 0x020c, "IA32_MTRR_PHYSBASE6" },
 150                 { 0x020d, "IA32_MTRR_PHYSMASK6" },
 151                 { 0x020e, "IA32_MTRR_PHYSBASE7" },
 152                 { 0x020f, "IA32_MTRR_PHYSMASK7" },
 153                 { 0x0250, "IA32_MTRR_FIX64K_00000" },
 154                 { 0x0258, "IA32_MTRR_FIX16K_80000" },
 155                 { 0x0259, "IA32_MTRR_FIX16K_A0000" },
 156                 { 0x0268, "IA32_MTRR_FIX4K_C0000" },
 157                 { 0x0269, "IA32_MTRR_FIX4K_C8000" },
 158                 { 0x026a, "IA32_MTRR_FIX4K_D0000" },
 159                 { 0x026b, "IA32_MTRR_FIX4K_D8000" },
 160                 { 0x026c, "IA32_MTRR_FIX4K_E0000" },
 161                 { 0x026d, "IA32_MTRR_FIX4K_E8000" },
 162                 { 0x026e, "IA32_MTRR_FIX4K_F0000" },
 163                 { 0x026f, "IA32_MTRR_FIX4K_F8000" },
 164                 { 0x02ff, "IA32_MTRR_DEF_TYPE" },
 165                 { 0x0400, "IA32_MC0_CTL" },
 166                 { 0x0401, "IA32_MC0_STATUS" },
 167                 { 0x0402, "IA32_MC0_ADDR" },
 168                 //{ 0x0403, "IA32_MC0_MISC" }, // Seems to be RO
 169                 { 0x0404, "IA32_MC1_CTL" },
 170                 { 0x0405, "IA32_MC1_STATUS" },
 171                 { 0x0406, "IA32_MC1_ADDR" },
 172                 //{ 0x0407, "IA32_MC1_MISC" }, // Seems to be RO
 173                 { 0x0408, "IA32_MC2_CTL" },
 174                 { 0x0409, "IA32_MC2_STATUS" },
 175                 { 0x040a, "IA32_MC2_ADDR" },
 176                 //{ 0x040b, "IA32_MC2_MISC" }, // Seems to be RO
 177                 { 0x040c, "IA32_MC4_CTL" },
 178                 { 0x040d, "IA32_MC4_STATUS" },
 179                 { 0x040e, "IA32_MC4_ADDR" },
 180                 //{ 0x040f, "IA32_MC4_MISC" } // Seems to be RO
 181                 { 0x0410, "IA32_MC3_CTL" },
 182                 { 0x0411, "IA32_MC3_STATUS" },
 183                 { 0x0412, "IA32_MC3_ADDR" },
 184                 //{ 0x0413, "IA32_MC3_MISC" }, // Seems to be RO
 185         };
 186
 187         static const msr_entry_t model6bx_global_msrs[] = {
 188                 { 0x0010, "IA32_TIME_STAMP_COUNTER" },
 189                 { 0x0017, "IA32_PLATFORM_ID" },
 190                 { 0x001b, "IA32_APIC_BASE" },
 191                 { 0x002a, "EBL_CR_POWERON" },
 192                 { 0x0033, "TEST_CTL" },
 193                 { 0x003f, "THERM_DIODE_OFFSET" },
 194                 //{ 0x0079, "IA32_BIOS_UPDT_TRIG" }, // Seems to be RO
 195                 { 0x008b, "IA32_BIOS_SIGN_ID" },
 196                 { 0x00c1, "PERFCTR0" },
 197                 { 0x00c2, "PERFCTR1" },
 198                 { 0x011e, "BBL_CR_CTL3" },
 199                 { 0x0179, "IA32_MCG_CAP" },
 200                 { 0x017a, "IA32_MCG_STATUS" },
 201                 { 0x0198, "IA32_PERF_STATUS" },
 202                 { 0x0199, "IA32_PERF_CONTROL" },
 203                 { 0x019a, "IA32_CLOCK_MODULATION" },
 204                 { 0x01a0, "IA32_MISC_ENABLES" },
 205                 { 0x01d9, "IA32_DEBUGCTL" },
 206                 { 0x0200, "IA32_MTRR_PHYSBASE0" },
 207                 { 0x0201, "IA32_MTRR_PHYSMASK0" },
 208                 { 0x0202, "IA32_MTRR_PHYSBASE1" },
 209                 { 0x0203, "IA32_MTRR_PHYSMASK1" },
 210                 { 0x0204, "IA32_MTRR_PHYSBASE2" },
 211                 { 0x0205, "IA32_MTRR_PHYSMASK2" },
 212                 { 0x0206, "IA32_MTRR_PHYSBASE3" },
 213                 { 0x0207, "IA32_MTRR_PHYSMASK3" },
 214                 { 0x0208, "IA32_MTRR_PHYSBASE4" },
 215                 { 0x0209, "IA32_MTRR_PHYSMASK4" },
 216                 { 0x020a, "IA32_MTRR_PHYSBASE5" },
 217                 { 0x020b, "IA32_MTRR_PHYSMASK5" },
 218                 { 0x020c, "IA32_MTRR_PHYSBASE6" },
 219                 { 0x020d, "IA32_MTRR_PHYSMASK6" },
 220                 { 0x020e, "IA32_MTRR_PHYSBASE7" },
 221                 { 0x020f, "IA32_MTRR_PHYSMASK7" },
 222                 { 0x0250, "IA32_MTRR_FIX64K_00000" },
 223                 { 0x0258, "IA32_MTRR_FIX16K_80000" },
 224                 { 0x0259, "IA32_MTRR_FIX16K_A0000" },
 225                 { 0x0268, "IA32_MTRR_FIX4K_C0000" },
 226                 { 0x0269, "IA32_MTRR_FIX4K_C8000" },
 227                 { 0x026a, "IA32_MTRR_FIX4K_D0000" },
 228                 { 0x026b, "IA32_MTRR_FIX4K_D8000" },
 229                 { 0x026c, "IA32_MTRR_FIX4K_E0000" },
 230                 { 0x026d, "IA32_MTRR_FIX4K_E8000" },
 231                 { 0x026e, "IA32_MTRR_FIX4K_F0000" },
 232                 { 0x026f, "IA32_MTRR_FIX4K_F8000" },
 233                 { 0x02ff, "IA32_MTRR_DEF_TYPE" },
 234                 { 0x0400, "IA32_MC0_CTL" },
 235                 { 0x0401, "IA32_MC0_STATUS" },
 236                 { 0x0402, "IA32_MC0_ADDR" },
 237                 //{ 0x0403, "IA32_MC0_MISC" }, // Seems to be RO
 238                 { 0x040c, "IA32_MC4_CTL" },
 239                 { 0x040d, "IA32_MC4_STATUS" },
 240                 { 0x040e, "IA32_MC4_ADDR" },
 241                 //{ 0x040f, "IA32_MC4_MISC" } // Seems to be RO
 242         };
 243
 244         static const msr_entry_t model6ex_global_msrs[] = {
 245                 { 0x0017, "IA32_PLATFORM_ID" },
 246                 { 0x002a, "EBL_CR_POWERON" },
 247                 { 0x00cd, "FSB_CLOCK_STS" },
 248                 { 0x00ce, "FSB_CLOCK_VCC" },
 249                 { 0x00e2, "CLOCK_CST_CONFIG_CONTROL" },
 250                 { 0x00e3, "PMG_IO_BASE_ADDR" },
 251                 { 0x00e4, "PMG_IO_CAPTURE_ADDR" },
 252                 { 0x00ee, "EXT_CONFIG" },
 253                 { 0x011e, "BBL_CR_CTL3" },
 254                 { 0x0194, "CLOCK_FLEX_MAX" },
 255                 { 0x0198, "IA32_PERF_STATUS" },
 256                 { 0x01a0, "IA32_MISC_ENABLES" },
 257                 { 0x01aa, "PIC_SENS_CFG" },
 258                 { 0x0400, "IA32_MC0_CTL" },
 259                 { 0x0401, "IA32_MC0_STATUS" },
 260                 { 0x0402, "IA32_MC0_ADDR" },
 261                 //{ 0x0403, "IA32_MC0_MISC" }, // Seems to be RO
 262                 { 0x040c, "IA32_MC4_CTL" },
 263                 { 0x040d, "IA32_MC4_STATUS" },
 264                 { 0x040e, "IA32_MC4_ADDR" },
 265                 //{ 0x040f, "IA32_MC4_MISC" } // Seems to be RO
 266         };
 267
 268         static const msr_entry_t model6ex_per_core_msrs[] = {
 269                 { 0x0010, "IA32_TIME_STAMP_COUNTER" },
 270                 { 0x001b, "IA32_APIC_BASE" },
 271                 { 0x003a, "IA32_FEATURE_CONTROL" },
 272                 { 0x003f, "IA32_TEMPERATURE_OFFSET" },
 273                 //{ 0x0079, "IA32_BIOS_UPDT_TRIG" }, // Seems to be RO
 274                 { 0x008b, "IA32_BIOS_SIGN_ID" },
 275                 { 0x00e7, "IA32_MPERF" },
 276                 { 0x00e8, "IA32_APERF" },
 277                 { 0x00fe, "IA32_MTRRCAP" },
 278                 { 0x015f, "DTS_CAL_CTRL" },
 279                 { 0x0179, "IA32_MCG_CAP" },
 280                 { 0x017a, "IA32_MCG_STATUS" },
 281                 { 0x0199, "IA32_PERF_CONTROL" },
 282                 { 0x019a, "IA32_CLOCK_MODULATION" },
 283                 { 0x019b, "IA32_THERM_INTERRUPT" },
 284                 { 0x019c, "IA32_THERM_STATUS" },
 285                 { 0x019d, "GV_THERM" },
 286                 { 0x01d9, "IA32_DEBUGCTL" },
 287                 { 0x0200, "IA32_MTRR_PHYSBASE0" },
 288                 { 0x0201, "IA32_MTRR_PHYSMASK0" },
 289                 { 0x0202, "IA32_MTRR_PHYSBASE1" },
 290                 { 0x0203, "IA32_MTRR_PHYSMASK1" },
 291                 { 0x0204, "IA32_MTRR_PHYSBASE2" },
 292                 { 0x0205, "IA32_MTRR_PHYSMASK2" },
 293                 { 0x0206, "IA32_MTRR_PHYSBASE3" },
 294                 { 0x0207, "IA32_MTRR_PHYSMASK3" },
 295                 { 0x0208, "IA32_MTRR_PHYSBASE4" },
 296                 { 0x0209, "IA32_MTRR_PHYSMASK4" },
 297                 { 0x020a, "IA32_MTRR_PHYSBASE5" },
 298                 { 0x020b, "IA32_MTRR_PHYSMASK5" },
 299                 { 0x020c, "IA32_MTRR_PHYSBASE6" },
 300                 { 0x020d, "IA32_MTRR_PHYSMASK6" },
 301                 { 0x020e, "IA32_MTRR_PHYSBASE7" },
 302                 { 0x020f, "IA32_MTRR_PHYSMASK7" },
 303                 { 0x0250, "IA32_MTRR_FIX64K_00000" },
 304                 { 0x0258, "IA32_MTRR_FIX16K_80000" },
 305                 { 0x0259, "IA32_MTRR_FIX16K_A0000" },
 306                 { 0x0268, "IA32_MTRR_FIX4K_C0000" },
 307                 { 0x0269, "IA32_MTRR_FIX4K_C8000" },
 308                 { 0x026a, "IA32_MTRR_FIX4K_D0000" },
 309                 { 0x026b, "IA32_MTRR_FIX4K_D8000" },
 310                 { 0x026c, "IA32_MTRR_FIX4K_E0000" },
 311                 { 0x026d, "IA32_MTRR_FIX4K_E8000" },
 312                 { 0x026e, "IA32_MTRR_FIX4K_F0000" },
 313                 { 0x026f, "IA32_MTRR_FIX4K_F8000" },
 314                 { 0x02ff, "IA32_MTRR_DEF_TYPE" },
 315                 //{ 0x00c000080, "IA32_CR_EFER" }, // Seems to be RO
 316         };
 317
 318         static const msr_entry_t model6fx_global_msrs[] = {
 319                 { 0x0017, "IA32_PLATFORM_ID" },
 320                 { 0x002a, "EBL_CR_POWERON" },
 321                 { 0x003f, "IA32_TEMPERATURE_OFFSET" },
 322                 { 0x00a8, "EMTTM_CR_TABLE0" },
 323                 { 0x00a9, "EMTTM_CR_TABLE1" },
 324                 { 0x00aa, "EMTTM_CR_TABLE2" },
 325                 { 0x00ab, "EMTTM_CR_TABLE3" },
 326                 { 0x00ac, "EMTTM_CR_TABLE4" },
 327                 { 0x00ad, "EMTTM_CR_TABLE5" },
 328                 { 0x00cd, "FSB_CLOCK_STS" },
 329                 { 0x00e2, "PMG_CST_CONFIG_CONTROL" },
 330                 { 0x00e3, "PMG_IO_BASE_ADDR" },
 331                 { 0x00e4, "PMG_IO_CAPTURE_ADDR" },
 332                 { 0x00ee, "EXT_CONFIG" },
 333                 { 0x011e, "BBL_CR_CTL3" },
 334                 { 0x0194, "CLOCK_FLEX_MAX" },
 335                 { 0x0198, "IA32_PERF_STATUS" },
 336                 { 0x01a0, "IA32_MISC_ENABLES" },
 337                 { 0x01aa, "PIC_SENS_CFG" },
 338                 { 0x0400, "IA32_MC0_CTL" },
 339                 { 0x0401, "IA32_MC0_STATUS" },
 340                 { 0x0402, "IA32_MC0_ADDR" },
 341                 //{ 0x0403, "IA32_MC0_MISC" }, // Seems to be RO
 342                 { 0x040c, "IA32_MC4_CTL" },
 343                 { 0x040d, "IA32_MC4_STATUS" },
 344                 { 0x040e, "IA32_MC4_ADDR" },
 345                 //{ 0x040f, "IA32_MC4_MISC" } // Seems to be RO
 346         };
 347
 348         static const msr_entry_t model6fx_per_core_msrs[] = {
 349                 { 0x0010, "IA32_TIME_STAMP_COUNTER" },
 350                 { 0x001b, "IA32_APIC_BASE" },
 351                 { 0x003a, "IA32_FEATURE_CONTROL" },
 352                 //{ 0x0079, "IA32_BIOS_UPDT_TRIG" }, // Seems to be RO
 353                 { 0x008b, "IA32_BIOS_SIGN_ID" },
 354                 { 0x00e1, "SMM_CST_MISC_INFO" },
 355                 { 0x00e7, "IA32_MPERF" },
 356                 { 0x00e8, "IA32_APERF" },
 357                 { 0x00fe, "IA32_MTRRCAP" },
 358                 { 0x0179, "IA32_MCG_CAP" },
 359                 { 0x017a, "IA32_MCG_STATUS" },
 360                 { 0x0199, "IA32_PERF_CONTROL" },
 361                 { 0x019a, "IA32_THERM_CTL" },
 362                 { 0x019b, "IA32_THERM_INTERRUPT" },
 363                 { 0x019c, "IA32_THERM_STATUS" },
 364                 { 0x019d, "MSR_THERM2_CTL" },
 365                 { 0x01d9, "IA32_DEBUGCTL" },
 366                 { 0x0200, "IA32_MTRR_PHYSBASE0" },
 367                 { 0x0201, "IA32_MTRR_PHYSMASK0" },
 368                 { 0x0202, "IA32_MTRR_PHYSBASE1" },
 369                 { 0x0203, "IA32_MTRR_PHYSMASK1" },
 370                 { 0x0204, "IA32_MTRR_PHYSBASE2" },
 371                 { 0x0205, "IA32_MTRR_PHYSMASK2" },
 372                 { 0x0206, "IA32_MTRR_PHYSBASE3" },
 373                 { 0x0207, "IA32_MTRR_PHYSMASK3" },
 374                 { 0x0208, "IA32_MTRR_PHYSBASE4" },
 375                 { 0x0209, "IA32_MTRR_PHYSMASK4" },
 376                 { 0x020a, "IA32_MTRR_PHYSBASE5" },
 377                 { 0x020b, "IA32_MTRR_PHYSMASK5" },
 378                 { 0x020c, "IA32_MTRR_PHYSBASE6" },
 379                 { 0x020d, "IA32_MTRR_PHYSMASK6" },
 380                 { 0x020e, "IA32_MTRR_PHYSBASE7" },
 381                 { 0x020f, "IA32_MTRR_PHYSMASK7" },
 382                 { 0x0250, "IA32_MTRR_FIX64K_00000" },
 383                 { 0x0258, "IA32_MTRR_FIX16K_80000" },
 384                 { 0x0259, "IA32_MTRR_FIX16K_A0000" },
 385                 { 0x0268, "IA32_MTRR_FIX4K_C0000" },
 386                 { 0x0269, "IA32_MTRR_FIX4K_C8000" },
 387                 { 0x026a, "IA32_MTRR_FIX4K_D0000" },
 388                 { 0x026b, "IA32_MTRR_FIX4K_D8000" },
 389                 { 0x026c, "IA32_MTRR_FIX4K_E0000" },
 390                 { 0x026d, "IA32_MTRR_FIX4K_E8000" },
 391                 { 0x026e, "IA32_MTRR_FIX4K_F0000" },
 392                 { 0x026f, "IA32_MTRR_FIX4K_F8000" },
 393                 { 0x02ff, "IA32_MTRR_DEF_TYPE" },
 394                 //{ 0x00c000080, "IA32_CR_EFER" }, // Seems to be RO
 395         };
 396
 397         /* Pentium 4 and XEON */
 398         /*
 399          * All MSRs per
 400          *
 401          * Intel 64 and IA-32 Architectures Software Developer's Manual
 402          * Volume 3B: System Programming Guide, Part 2
 403          *
 404          * Table B-5, B-7
 405          */
 406         static const msr_entry_t modelf2x_global_msrs[] = {
 407                 { 0x0000, "IA32_P5_MC_ADDR" },
 408                 { 0x0001, "IA32_P5_MC_TYPE" },
 409                 /* 0x6: Not available in model 2. */
 410                 { 0x0017, "IA32_PLATFORM_ID" },
 411                 { 0x002a, "MSR_EBC_HARD_POWERON" },
 412                 { 0x002b, "MSR_EBC_SOFT_POWRON" },
 413                 /* 0x2c: Not available in model 2. */
 414 // WRITE ONLY   { 0x0079, "IA32_BIOS_UPDT_TRIG" },
 415                 { 0x019c, "IA32_THERM_STATUS" },
 416                 /* 0x19d: Not available in model 2. */
 417                 { 0x01a0, "IA32_MISC_ENABLE" },
 418                 /* 0x1a1: Not available in model 2. */
 419                 { 0x0200, "IA32_MTRR_PHYSBASE0" },
 420                 { 0x0201, "IA32_MTRR_PHYSMASK0" },
 421                 { 0x0202, "IA32_MTRR_PHYSBASE1" },
 422                 { 0x0203, "IA32_MTRR_PHYSMASK1" },
 423                 { 0x0204, "IA32_MTRR_PHYSBASE2" },
 424                 { 0x0205, "IA32_MTRR_PHYSMASK2" },
 425                 { 0x0206, "IA32_MTRR_PHYSBASE3" },
 426                 { 0x0207, "IA32_MTRR_PHYSMASK3" },
 427                 { 0x0208, "IA32_MTRR_PHYSBASE4" },
 428                 { 0x0209, "IA32_MTRR_PHYSMASK4" },
 429                 { 0x020a, "IA32_MTRR_PHYSBASE5" },
 430                 { 0x020b, "IA32_MTRR_PHYSMASK5" },
 431                 { 0x020c, "IA32_MTRR_PHYSBASE6" },
 432                 { 0x020d, "IA32_MTRR_PHYSMASK6" },
 433                 { 0x020e, "IA32_MTRR_PHYSBASE7" },
 434                 { 0x020f, "IA32_MTRR_PHYSMASK7" },
 435                 { 0x0250, "IA32_MTRR_FIX64K_00000" },
 436                 { 0x0258, "IA32_MTRR_FIX16K_80000" },
 437                 { 0x0259, "IA32_MTRR_FIX16K_A0000" },
 438                 { 0x0268, "IA32_MTRR_FIX4K_C0000" },
 439                 { 0x0269, "IA32_MTRR_FIX4K_C8000" },
 440                 { 0x026a, "IA32_MTRR_FIX4K_D0000" },
 441                 { 0x026b, "IA32_MTRR_FIX4K_D8000" },
 442                 { 0x026c, "IA32_MTRR_FIX4K_E0000" },
 443                 { 0x026d, "IA32_MTRR_FIX4K_E8000" },
 444                 { 0x026e, "IA32_MTRR_FIX4K_F0000" },
 445                 { 0x026f, "IA32_MTRR_FIX4K_F8000" },
 446                 { 0x02ff, "IA32_MTRR_DEF_TYPE" },
 447                 { 0x0300, "MSR_BPU_COUNTER0" },
 448                 { 0x0301, "MSR_BPU_COUNTER1" },
 449                 { 0x0302, "MSR_BPU_COUNTER2" },
 450                 { 0x0303, "MSR_BPU_COUNTER3" },
 451                 { 0x0304, "MSR_MS_COUNTER0" },
 452                 { 0x0305, "MSR_MS_COUNTER1" },
 453                 { 0x0306, "MSR_MS_COUNTER2" },
 454                 { 0x0307, "MSR_MS_COUNTER3" },
 455                 { 0x0308, "MSR_FLAME_COUNTER0" },
 456                 { 0x0309, "MSR_FLAME_COUNTER1" },
 457                 { 0x030a, "MSR_FLAME_COUNTER2" },
 458                 { 0x030b, "MSR_FLAME_COUNTER3" },
 459                 { 0x030c, "MSR_IQ_COUNTER0" },
 460                 { 0x030d, "MSR_IQ_COUNTER1" },
 461                 { 0x030e, "MSR_IQ_COUNTER2" },
 462                 { 0x030f, "MSR_IQ_COUNTER3" },
 463                 { 0x0310, "MSR_IQ_COUNTER4" },
 464                 { 0x0311, "MSR_IQ_COUNTER5" },
 465                 { 0x0360, "MSR_BPU_CCCR0" },
 466                 { 0x0361, "MSR_BPU_CCCR1" },
 467                 { 0x0362, "MSR_BPU_CCCR2" },
 468                 { 0x0363, "MSR_BPU_CCCR3" },
 469                 { 0x0364, "MSR_MS_CCCR0" },
 470                 { 0x0365, "MSR_MS_CCCR1" },
 471                 { 0x0366, "MSR_MS_CCCR2" },
 472                 { 0x0367, "MSR_MS_CCCR3" },
 473                 { 0x0368, "MSR_FLAME_CCCR0" },
 474                 { 0x0369, "MSR_FLAME_CCCR1" },
 475                 { 0x036a, "MSR_FLAME_CCCR2" },
 476                 { 0x036b, "MSR_FLAME_CCCR3" },
 477                 { 0x036c, "MSR_IQ_CCCR0" },
 478                 { 0x036d, "MSR_IQ_CCCR1" },
 479                 { 0x036e, "MSR_IQ_CCCR2" },
 480                 { 0x036f, "MSR_IQ_CCCR3" },
 481                 { 0x0370, "MSR_IQ_CCCR4" },
 482                 { 0x0371, "MSR_IQ_CCCR5" },
 483                 { 0x03a0, "MSR_BSU_ESCR0" },
 484                 { 0x03a1, "MSR_BSU_ESCR1" },
 485                 { 0x03a2, "MSR_FSB_ESCR0" },
 486                 { 0x03a3, "MSR_FSB_ESCR1" },
 487                 { 0x03a4, "MSR_FIRM_ESCR0" },
 488                 { 0x03a5, "MSR_FIRM_ESCR1" },
 489                 { 0x03a6, "MSR_FLAME_ESCR0" },
 490                 { 0x03a7, "MSR_FLAME_ESCR1" },
 491                 { 0x03a8, "MSR_DAC_ESCR0" },
 492                 { 0x03a9, "MSR_DAC_ESCR1" },
 493                 { 0x03aa, "MSR_MOB_ESCR0" },
 494                 { 0x03ab, "MSR_MOB_ESCR1" },
 495                 { 0x03ac, "MSR_PMH_ESCR0" },
 496                 { 0x03ad, "MSR_PMH_ESCR1" },
 497                 { 0x03ae, "MSR_SAAT_ESCR0" },
 498                 { 0x03af, "MSR_SAAT_ESCR1" },
 499                 { 0x03b0, "MSR_U2L_ESCR0" },
 500                 { 0x03b1, "MSR_U2L_ESCR1" },
 501                 { 0x03b2, "MSR_BPU_ESCR0" },
 502                 { 0x03b3, "MSR_BPU_ESCR1" },
 503                 { 0x03b4, "MSR_IS_ESCR0" },
 504                 { 0x03b5, "MSR_BPU_ESCR1" },
 505                 { 0x03b6, "MSR_ITLB_ESCR0" },
 506                 { 0x03b7, "MSR_ITLB_ESCR1" },
 507                 { 0x03b8, "MSR_CRU_ESCR0" },
 508                 { 0x03b9, "MSR_CRU_ESCR1" },
 509                 { 0x03ba, "MSR_IQ_ESCR0" },
 510                 { 0x03bb, "MSR_IQ_ESCR1" },
 511                 { 0x03bc, "MSR_RAT_ESCR0" },
 512                 { 0x03bd, "MSR_RAT_ESCR1" },
 513                 { 0x03be, "MSR_SSU_ESCR0" },
 514                 { 0x03c0, "MSR_MS_ESCR0" },
 515                 { 0x03c1, "MSR_MS_ESCR1" },
 516                 { 0x03c2, "MSR_TBPU_ESCR0" },
 517                 { 0x03c3, "MSR_TBPU_ESCR1" },
 518                 { 0x03c4, "MSR_TC_ESCR0" },
 519                 { 0x03c5, "MSR_TC_ESCR1" },
 520                 { 0x03c8, "MSR_IX_ESCR0" },
 521                 { 0x03c9, "MSR_IX_ESCR1" },
 522                 { 0x03ca, "MSR_ALF_ESCR0" },
 523                 { 0x03cb, "MSR_ALF_ESCR1" },
 524                 { 0x03cc, "MSR_CRU_ESCR2" },
 525                 { 0x03cd, "MSR_CRU_ESCR3" },
 526                 { 0x03e0, "MSR_CRU_ESCR4" },
 527                 { 0x03e1, "MSR_CRU_ESCR5" },
 528                 { 0x03f0, "MSR_TC_PRECISE_EVENT" },
 529                 { 0x03f1, "MSR_PEBS_ENABLE" },
 530                 { 0x03f2, "MSR_PEBS_MATRIX_VERT" },
 531
 532                 /*
 533                  * All MCX_ADDR and MCX_MISC MSRs depend on a bit being
 534                  * set in MCX_STATUS.
 535                  */
 536                 { 0x400, "IA32_MC0_CTL" },
 537                 { 0x401, "IA32_MC0_STATUS" },
 538                 { 0x402, "IA32_MC0_ADDR" },
 539                 { 0x403, "IA32_MC0_MISC" },
 540                 { 0x404, "IA32_MC1_CTL" },
 541                 { 0x405, "IA32_MC1_STATUS" },
 542                 { 0x406, "IA32_MC1_ADDR" },
 543                 { 0x407, "IA32_MC1_MISC" },
 544                 { 0x408, "IA32_MC2_CTL" },
 545                 { 0x409, "IA32_MC2_STATUS" },
 546                 { 0x40a, "IA32_MC2_ADDR" },
 547                 { 0x40b, "IA32_MC2_MISC" },
 548                 { 0x40c, "IA32_MC3_CTL" },
 549                 { 0x40d, "IA32_MC3_STATUS" },
 550                 { 0x40e, "IA32_MC3_ADDR" },
 551                 { 0x40f, "IA32_MC3_MISC" },
 552                 { 0x410, "IA32_MC4_CTL" },
 553                 { 0x411, "IA32_MC4_STATUS" },
 554                 { 0x412, "IA32_MC4_ADDR" },
 555                 { 0x413, "IA32_MC4_MISC" },
 556         };
 557
 558         static const msr_entry_t modelf2x_per_core_msrs[] = {
 559                 { 0x0010, "IA32_TIME_STAMP_COUNTER" },
 560                 { 0x001b, "IA32_APIC_BASE" },
 561                 /* 0x3a: Not available in model 2. */
 562                 { 0x008b, "IA32_BIOS_SIGN_ID" },
 563                 /* 0x9b: Not available in model 2. */
 564                 { 0x00fe, "IA32_MTRRCAP" },
 565                 { 0x0174, "IA32_SYSENTER_CS" },
 566                 { 0x0175, "IA32_SYSENTER_ESP" },
 567                 { 0x0176, "IA32_SYSENTER_EIP" },
 568                 { 0x0179, "IA32_MCG_CAP" },
 569                 { 0x017a, "IA32_MCG_STATUS" },
 570                 { 0x017b, "IA32_MCG_CTL" },
 571                 { 0x0180, "MSR_MCG_RAX" },
 572                 { 0x0181, "MSR_MCG_RBX" },
 573                 { 0x0182, "MSR_MCG_RCX" },
 574                 { 0x0183, "MSR_MCG_RDX" },
 575                 { 0x0184, "MSR_MCG_RSI" },
 576                 { 0x0185, "MSR_MCG_RDI" },
 577                 { 0x0186, "MSR_MCG_RBP" },
 578                 { 0x0187, "MSR_MCG_RSP" },
 579                 { 0x0188, "MSR_MCG_RFLAGS" },
 580                 { 0x0189, "MSR_MCG_RIP" },
 581                 { 0x018a, "MSR_MCG_MISC" },
 582                 /* 0x18b-0x18f: Reserved */
 583                 { 0x0190, "MSR_MCG_R8" },
 584                 { 0x0191, "MSR_MCG_R9" },
 585                 { 0x0192, "MSR_MCG_R10" },
 586                 { 0x0193, "MSR_MCG_R11" },
 587                 { 0x0194, "MSR_MCG_R12" },
 588                 { 0x0195, "MSR_MCG_R13" },
 589                 { 0x0196, "MSR_MCG_R14" },
 590                 { 0x0197, "MSR_MCG_R15" },
 591                 /* 0x198: Not available in model 2. */
 592                 /* 0x199: Not available in model 2. */
 593                 { 0x019a, "IA32_CLOCK_MODULATION" },
 594                 { 0x019b, "IA32_THERM_INTERRUPT" },
 595                 { 0x01a0, "IA32_MISC_ENABLE" },
 596                 { 0x01d7, "MSR_LER_FROM_LIP" },
 597                 { 0x01d8, "MSR_LER_TO_LIP" },
 598                 { 0x01d9, "MSR_DEBUGCTLA" },
 599                 { 0x01da, "MSR_LASTBRANCH_TOS" },
 600                 { 0x01db, "MSR_LASTBRANCH_0" },
 601                 { 0x01dd, "MSR_LASTBRANCH_2" },
 602                 { 0x01de, "MSR_LASTBRANCH_3" },
 603                 { 0x0277, "IA32_PAT" },
 604                 /* 0x480-0x48b : Not available in model 2. */
 605                 { 0x0600, "IA32_DS_AREA" },
 606                 /* 0x0680 - 0x06cf Branch Records Skipped */
 607         };
 608
 609         static const msr_entry_t modelf4x_global_msrs[] = {
 610                 { 0x0000, "IA32_P5_MC_ADDR" },
 611                 { 0x0001, "IA32_P5_MC_TYPE" },
 612                 { 0x0006, "IA32_MONITOR_FILTER_LINE_SIZE" },
 613                 { 0x0017, "IA32_PLATFORM_ID" },
 614                 { 0x002a, "MSR_EBC_HARD_POWERON" },
 615                 { 0x002b, "MSR_EBC_SOFT_POWRON" },
 616                 { 0x002c, "MSR_EBC_FREQUENCY_ID" },
 617 // WRITE ONLY   { 0x0079, "IA32_BIOS_UPDT_TRIG" },
 618                 { 0x019c, "IA32_THERM_STATUS" },
 619                 { 0x019d, "MSR_THERM2_CTL" },
 620                 { 0x01a0, "IA32_MISC_ENABLE" },
 621                 { 0x01a1, "MSR_PLATFORM_BRV" },
 622                 { 0x0200, "IA32_MTRR_PHYSBASE0" },
 623                 { 0x0201, "IA32_MTRR_PHYSMASK0" },
 624                 { 0x0202, "IA32_MTRR_PHYSBASE1" },
 625                 { 0x0203, "IA32_MTRR_PHYSMASK1" },
 626                 { 0x0204, "IA32_MTRR_PHYSBASE2" },
 627                 { 0x0205, "IA32_MTRR_PHYSMASK2" },
 628                 { 0x0206, "IA32_MTRR_PHYSBASE3" },
 629                 { 0x0207, "IA32_MTRR_PHYSMASK3" },
 630                 { 0x0208, "IA32_MTRR_PHYSBASE4" },
 631                 { 0x0209, "IA32_MTRR_PHYSMASK4" },
 632                 { 0x020a, "IA32_MTRR_PHYSBASE5" },
 633                 { 0x020b, "IA32_MTRR_PHYSMASK5" },
 634                 { 0x020c, "IA32_MTRR_PHYSBASE6" },
 635                 { 0x020d, "IA32_MTRR_PHYSMASK6" },
 636                 { 0x020e, "IA32_MTRR_PHYSBASE7" },
 637                 { 0x020f, "IA32_MTRR_PHYSMASK7" },
 638                 { 0x0250, "IA32_MTRR_FIX64K_00000" },
 639                 { 0x0258, "IA32_MTRR_FIX16K_80000" },
 640                 { 0x0259, "IA32_MTRR_FIX16K_A0000" },
 641                 { 0x0268, "IA32_MTRR_FIX4K_C0000" },
 642                 { 0x0269, "IA32_MTRR_FIX4K_C8000" },
 643                 { 0x026a, "IA32_MTRR_FIX4K_D0000" },
 644                 { 0x026b, "IA32_MTRR_FIX4K_D8000" },
 645                 { 0x026c, "IA32_MTRR_FIX4K_E0000" },
 646                 { 0x026d, "IA32_MTRR_FIX4K_E8000" },
 647                 { 0x026e, "IA32_MTRR_FIX4K_F0000" },
 648                 { 0x026f, "IA32_MTRR_FIX4K_F8000" },
 649                 { 0x02ff, "IA32_MTRR_DEF_TYPE" },
 650                 { 0x0300, "MSR_BPU_COUNTER0" },
 651                 { 0x0301, "MSR_BPU_COUNTER1" },
 652                 { 0x0302, "MSR_BPU_COUNTER2" },
 653                 { 0x0303, "MSR_BPU_COUNTER3" },
 654                 /* Skipped through 0x3ff  for now*/
 655
 656         /* All MCX_ADDR AND MCX_MISC MSRs depend on a bit being
 657          * set in MCX_STATUS */
 658                 { 0x400, "IA32_MC0_CTL" },
 659                 { 0x401, "IA32_MC0_STATUS" },
 660                 { 0x402, "IA32_MC0_ADDR" },
 661                 { 0x403, "IA32_MC0_MISC" },
 662                 { 0x404, "IA32_MC1_CTL" },
 663                 { 0x405, "IA32_MC1_STATUS" },
 664                 { 0x406, "IA32_MC1_ADDR" },
 665                 { 0x407, "IA32_MC1_MISC" },
 666                 { 0x408, "IA32_MC2_CTL" },
 667                 { 0x409, "IA32_MC2_STATUS" },
 668                 { 0x40a, "IA32_MC2_ADDR" },
 669                 { 0x40b, "IA32_MC2_MISC" },
 670                 { 0x40c, "IA32_MC3_CTL" },
 671                 { 0x40d, "IA32_MC3_STATUS" },
 672                 { 0x40e, "IA32_MC3_ADDR" },
 673                 { 0x40f, "IA32_MC3_MISC" },
 674                 { 0x410, "IA32_MC4_CTL" },
 675                 { 0x411, "IA32_MC4_STATUS" },
 676                 { 0x412, "IA32_MC4_ADDR" },
 677                 { 0x413, "IA32_MC4_MISC" },
 678         };
 679
 680         static const msr_entry_t modelf4x_per_core_msrs[] = {
 681                 { 0x0010, "IA32_TIME_STAMP_COUNTER" },
 682                 { 0x001b, "IA32_APIC_BASE" },
 683                 { 0x003a, "IA32_FEATURE_CONTROL" },
 684                 { 0x008b, "IA32_BIOS_SIGN_ID" },
 685                 { 0x009b, "IA32_SMM_MONITOR_CTL" },
 686                 { 0x00fe, "IA32_MTRRCAP" },
 687                 { 0x0174, "IA32_SYSENTER_CS" },
 688                 { 0x0175, "IA32_SYSENTER_ESP" },
 689                 { 0x0176, "IA32_SYSENTER_EIP" },
 690                 { 0x0179, "IA32_MCG_CAP" },
 691                 { 0x017a, "IA32_MCG_STATUS" },
 692                 { 0x0180, "MSR_MCG_RAX" },
 693                 { 0x0181, "MSR_MCG_RBX" },
 694                 { 0x0182, "MSR_MCG_RCX" },
 695                 { 0x0183, "MSR_MCG_RDX" },
 696                 { 0x0184, "MSR_MCG_RSI" },
 697                 { 0x0185, "MSR_MCG_RDI" },
 698                 { 0x0186, "MSR_MCG_RBP" },
 699                 { 0x0187, "MSR_MCG_RSP" },
 700                 { 0x0188, "MSR_MCG_RFLAGS" },
 701                 { 0x0189, "MSR_MCG_RIP" },
 702                 { 0x018a, "MSR_MCG_MISC" },
 703                 // 0x18b-f Reserved
 704                 { 0x0190, "MSR_MCG_R8" },
 705                 { 0x0191, "MSR_MCG_R9" },
 706                 { 0x0192, "MSR_MCG_R10" },
 707                 { 0x0193, "MSR_MCG_R11" },
 708                 { 0x0194, "MSR_MCG_R12" },
 709                 { 0x0195, "MSR_MCG_R13" },
 710                 { 0x0196, "MSR_MCG_R14" },
 711                 { 0x0197, "MSR_MCG_R15" },
 712                 { 0x0198, "IA32_PERF_STATUS" },
 713                 { 0x0199, "IA32_PERF_CTL" },
 714                 { 0x019a, "IA32_CLOCK_MODULATION" },
 715                 { 0x019b, "IA32_THERM_INTERRUPT" },
 716                 { 0x01a0, "IA32_MISC_ENABLE" }, // Bit 34 is Core Specific
 717                 { 0x01d7, "MSR_LER_FROM_LIP" },
 718                 { 0x01d8, "MSR_LER_TO_LIP" },
 719                 { 0x01d9, "MSR_DEBUGCTLA" },
 720                 { 0x01da, "MSR_LASTBRANCH_TOS" },
 721                 { 0x0277, "IA32_PAT" },
 722                 /** Virtualization
 723                 { 0x480, "IA32_VMX_BASIC" },
 724                   through
 725                 { 0x48b, "IA32_VMX_PROCBASED_CTLS2" },
 726                   Not implemented in my CPU
 727                 */
 728                 { 0x0600, "IA32_DS_AREA" },
 729                 /* 0x0680 - 0x06cf Branch Records Skipped */
 730
 731         };
 732
 733         typedef struct {
 734                 unsigned int model;
 735                 const msr_entry_t *global_msrs;
 736                 unsigned int num_global_msrs;
 737                 const msr_entry_t *per_core_msrs;
 738                 unsigned int num_per_core_msrs;
 739         } cpu_t;
 740
 741         cpu_t cpulist[] = {
 742                 { 0x00670, model67x_global_msrs, ARRAY_SIZE(model67x_global_msrs), NULL, 0 },
 743                 { 0x006b0, model6bx_global_msrs, ARRAY_SIZE(model6bx_global_msrs), NULL, 0 },
 744                 { 0x006e0, model6ex_global_msrs, ARRAY_SIZE(model6ex_global_msrs), model6ex_per_core_msrs, ARRAY_SIZE(model6ex_per_core_msrs) },
 745                 { 0x006f0, model6fx_global_msrs, ARRAY_SIZE(model6fx_global_msrs), model6fx_per_core_msrs, ARRAY_SIZE(model6fx_per_core_msrs) },
 746                 { 0x00f20, modelf2x_global_msrs, ARRAY_SIZE(modelf2x_global_msrs), modelf2x_per_core_msrs, ARRAY_SIZE(modelf2x_per_core_msrs) },
 747                 { 0x00f40, modelf4x_global_msrs, ARRAY_SIZE(modelf4x_global_msrs), modelf4x_per_core_msrs, ARRAY_SIZE(modelf4x_per_core_msrs) },
 748         };
 749
 750         cpu_t *cpu = NULL;
 751
 752         /* Get CPU family and model, not the stepping
 753          * (TODO: extended family/model)
 754          */
 755         id = cpuid(1) & 0xfffff0;
 756         for (i = 0; i < ARRAY_SIZE(cpulist); i++) {
 757                 if(cpulist[i].model == id) {
 758                         cpu = &cpulist[i];
 759                         break;
 760                 }
 761         }
 762
 763         if (!cpu) {
 764                 printf("Error: Dumping MSRs on this CPU (0x%06x) is not (yet) supported.\n", id);
 765                 return -1;
 766         }
 767
 768 #ifndef __DARWIN__
 769         fd_msr = open("/dev/cpu/0/msr", O_RDWR);
 770         if (fd_msr < 0) {
 771                 perror("Error while opening /dev/cpu/0/msr");
 772                 printf("Did you run 'modprobe msr'?\n");
 773                 return -1;
 774         }
 775 #endif
 776
 777         printf("\n===================== SHARED MSRs (All Cores) =====================\n");
 778
 779         for (i = 0; i < cpu->num_global_msrs; i++) {
 780                 msr = rdmsr(cpu->global_msrs[i].number);
 781                 printf(" MSR 0x%08X = 0x%08X:0x%08X (%s)\n",
 782                        cpu->global_msrs[i].number, msr.hi, msr.lo,
 783                        cpu->global_msrs[i].name);
 784         }
 785
 786         close(fd_msr);
 787
 788         for (core = 0; core < 8; core++) {
 789 #ifndef __DARWIN__
 790                 char msrfilename[64];
 791                 memset(msrfilename, 0, 64);
 792                 sprintf(msrfilename, "/dev/cpu/%d/msr", core);
 793
 794                 fd_msr = open(msrfilename, O_RDWR);
 795
 796                 /* If the file is not there, we're probably through. No error,
 797                  * since we successfully opened /dev/cpu/0/msr before.
 798                  */
 799                 if (fd_msr < 0)
 800                         break;
 801 #endif
 802                 if (cpu->num_per_core_msrs)
 803                         printf("\n====================== UNIQUE MSRs  (core %d) ======================\n", core);
 804
 805                 for (i = 0; i < cpu->num_per_core_msrs; i++) {
 806                         msr = rdmsr(cpu->per_core_msrs[i].number);
 807                         printf(" MSR 0x%08X = 0x%08X:0x%08X (%s)\n",
 808                                cpu->per_core_msrs[i].number, msr.hi, msr.lo,
 809                                cpu->per_core_msrs[i].name);
 810                 }
 811 #ifndef __DARWIN__
 812                 close(fd_msr);
 813 #endif
 814         }
 815
 816 #ifndef __DARWIN__
 817         if (msr_readerror)
 818                 printf("\n(*) Some MSRs could not be read. The marked values are unreliable.\n");
 819 #endif
 820         return 0;
 821 }