| /* |
| * inteltool - dump all registers on an Intel CPU + chipset based system. |
| * |
| * Copyright (C) 2008 by coresystems GmbH |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| #include "inteltool.h" |
| |
| int fd_msr; |
| |
| unsigned int cpuid(unsigned int op) |
| { |
| unsigned int ret; |
| unsigned int dummy2, dummy3, dummy4; |
| #if DARWIN |
| asm volatile ( |
| "pushl %%ebx \n" |
| "cpuid \n" |
| "movl %%ebx, %1 \n" |
| "popl %%ebx \n" |
| : "=a" (ret), "=r" (dummy2), "=c" (dummy3), "=d" (dummy4) |
| : "a" (op) |
| : "cc" |
| ); |
| #else |
| asm volatile ( |
| "cpuid" |
| : "=a" (ret), "=b" (dummy2), "=c" (dummy3), "=d" (dummy4) |
| : "a" (op) |
| : "cc" |
| ); |
| #endif |
| return ret; |
| } |
| |
| #ifndef DARWIN |
| int msr_readerror = 0; |
| |
| msr_t rdmsr(int addr) |
| { |
| uint8_t buf[8]; |
| msr_t msr = { 0xffffffff, 0xffffffff }; |
| |
| if (lseek(fd_msr, (off_t) addr, SEEK_SET) == -1) { |
| perror("Could not lseek() to MSR"); |
| close(fd_msr); |
| exit(1); |
| } |
| |
| if (read(fd_msr, buf, 8) == 8) { |
| msr.lo = *(uint32_t *)buf; |
| msr.hi = *(uint32_t *)(buf + 4); |
| |
| return msr; |
| } |
| |
| if (errno == 5) { |
| printf(" (*)"); // Not all bits of the MSR could be read |
| msr_readerror = 1; |
| } else { |
| // A severe error. |
| perror("Could not read() MSR"); |
| close(fd_msr); |
| exit(1); |
| } |
| |
| return msr; |
| } |
| #endif |
| |
| int print_intel_core_msrs(void) |
| { |
| unsigned int i, core, id; |
| msr_t msr; |
| |
| #define IA32_PLATFORM_ID 0x0017 |
| #define EBL_CR_POWERON 0x002a |
| #define FSB_CLK_STS 0x00cd |
| #define IA32_TIME_STAMP_COUNTER 0x0010 |
| #define IA32_APIC_BASE 0x001b |
| |
| typedef struct { |
| int number; |
| char *name; |
| } msr_entry_t; |
| |
| static const msr_entry_t model6ex_global_msrs[] = { |
| { 0x0017, "IA32_PLATFORM_ID" }, |
| { 0x002a, "EBL_CR_POWERON" }, |
| { 0x00cd, "FSB_CLOCK_STS" }, |
| { 0x00ce, "FSB_CLOCK_VCC" }, |
| { 0x00e2, "CLOCK_CST_CONFIG_CONTROL" }, |
| { 0x00e3, "PMG_IO_BASE_ADDR" }, |
| { 0x00e4, "PMG_IO_CAPTURE_ADDR" }, |
| { 0x00ee, "EXT_CONFIG" }, |
| { 0x011e, "BBL_CR_CTL3" }, |
| { 0x0194, "CLOCK_FLEX_MAX" }, |
| { 0x0198, "IA32_PERF_STATUS" }, |
| { 0x01a0, "IA32_MISC_ENABLES" }, |
| { 0x01aa, "PIC_SENS_CFG" }, |
| { 0x0400, "IA32_MC0_CTL" }, |
| { 0x0401, "IA32_MC0_STATUS" }, |
| { 0x0402, "IA32_MC0_ADDR" }, |
| //{ 0x0403, "IA32_MC0_MISC" }, // Seems to be RO |
| { 0x040c, "IA32_MC4_CTL" }, |
| { 0x040d, "IA32_MC4_STATUS" }, |
| { 0x040e, "IA32_MC4_ADDR" }, |
| //{ 0x040f, "IA32_MC4_MISC" } // Seems to be RO |
| }; |
| |
| static const msr_entry_t model6ex_per_core_msrs[] = { |
| { 0x0010, "IA32_TIME_STAMP_COUNTER" }, |
| { 0x001b, "IA32_APIC_BASE" }, |
| { 0x003a, "IA32_FEATURE_CONTROL" }, |
| { 0x003f, "IA32_TEMPERATURE_OFFSET" }, |
| //{ 0x0079, "IA32_BIOS_UPDT_TRIG" }, // Seems to be RO |
| { 0x008b, "IA32_BIOS_SIGN_ID" }, |
| { 0x00e7, "IA32_MPERF" }, |
| { 0x00e8, "IA32_APERF" }, |
| { 0x00fe, "IA32_MTRRCAP" }, |
| { 0x015f, "DTS_CAL_CTRL" }, |
| { 0x0179, "IA32_MCG_CAP" }, |
| { 0x017a, "IA32_MCG_STATUS" }, |
| { 0x0199, "IA32_PERF_CONTROL" }, |
| { 0x019a, "IA32_CLOCK_MODULATION" }, |
| { 0x019b, "IA32_THERM_INTERRUPT" }, |
| { 0x019c, "IA32_THERM_STATUS" }, |
| { 0x019d, "GV_THERM" }, |
| { 0x01d9, "IA32_DEBUGCTL" }, |
| { 0x0200, "IA32_MTRR_PHYSBASE0" }, |
| { 0x0201, "IA32_MTRR_PHYSMASK0" }, |
| { 0x0202, "IA32_MTRR_PHYSBASE1" }, |
| { 0x0203, "IA32_MTRR_PHYSMASK1" }, |
| { 0x0204, "IA32_MTRR_PHYSBASE2" }, |
| { 0x0205, "IA32_MTRR_PHYSMASK2" }, |
| { 0x0206, "IA32_MTRR_PHYSBASE3" }, |
| { 0x0207, "IA32_MTRR_PHYSMASK3" }, |
| { 0x0208, "IA32_MTRR_PHYSBASE4" }, |
| { 0x0209, "IA32_MTRR_PHYSMASK4" }, |
| { 0x020a, "IA32_MTRR_PHYSBASE5" }, |
| { 0x020b, "IA32_MTRR_PHYSMASK5" }, |
| { 0x020c, "IA32_MTRR_PHYSBASE6" }, |
| { 0x020d, "IA32_MTRR_PHYSMASK6" }, |
| { 0x020e, "IA32_MTRR_PHYSBASE7" }, |
| { 0x020f, "IA32_MTRR_PHYSMASK7" }, |
| { 0x0250, "IA32_MTRR_FIX64K_00000" }, |
| { 0x0258, "IA32_MTRR_FIX16K_80000" }, |
| { 0x0259, "IA32_MTRR_FIX16K_A0000" }, |
| { 0x0268, "IA32_MTRR_FIX4K_C0000" }, |
| { 0x0269, "IA32_MTRR_FIX4K_C8000" }, |
| { 0x026a, "IA32_MTRR_FIX4K_D0000" }, |
| { 0x026b, "IA32_MTRR_FIX4K_D8000" }, |
| { 0x026c, "IA32_MTRR_FIX4K_E0000" }, |
| { 0x026d, "IA32_MTRR_FIX4K_E8000" }, |
| { 0x026e, "IA32_MTRR_FIX4K_F0000" }, |
| { 0x026f, "IA32_MTRR_FIX4K_F8000" }, |
| { 0x02ff, "IA32_MTRR_DEF_TYPE" }, |
| //{ 0x00c000080, "IA32_CR_EFER" }, // Seems to be RO |
| }; |
| |
| static const msr_entry_t model6fx_global_msrs[] = { |
| { 0x0017, "IA32_PLATFORM_ID" }, |
| { 0x002a, "EBL_CR_POWERON" }, |
| { 0x003f, "IA32_TEMPERATURE_OFFSET" }, |
| { 0x00a8, "EMTTM_CR_TABLE0" }, |
| { 0x00a9, "EMTTM_CR_TABLE1" }, |
| { 0x00aa, "EMTTM_CR_TABLE2" }, |
| { 0x00ab, "EMTTM_CR_TABLE3" }, |
| { 0x00ac, "EMTTM_CR_TABLE4" }, |
| { 0x00ad, "EMTTM_CR_TABLE5" }, |
| { 0x00cd, "FSB_CLOCK_STS" }, |
| { 0x00e2, "PMG_CST_CONFIG_CONTROL" }, |
| { 0x00e3, "PMG_IO_BASE_ADDR" }, |
| { 0x00e4, "PMG_IO_CAPTURE_ADDR" }, |
| { 0x00ee, "EXT_CONFIG" }, |
| { 0x011e, "BBL_CR_CTL3" }, |
| { 0x0194, "CLOCK_FLEX_MAX" }, |
| { 0x0198, "IA32_PERF_STATUS" }, |
| { 0x01a0, "IA32_MISC_ENABLES" }, |
| { 0x01aa, "PIC_SENS_CFG" }, |
| { 0x0400, "IA32_MC0_CTL" }, |
| { 0x0401, "IA32_MC0_STATUS" }, |
| { 0x0402, "IA32_MC0_ADDR" }, |
| //{ 0x0403, "IA32_MC0_MISC" }, // Seems to be RO |
| { 0x040c, "IA32_MC4_CTL" }, |
| { 0x040d, "IA32_MC4_STATUS" }, |
| { 0x040e, "IA32_MC4_ADDR" }, |
| //{ 0x040f, "IA32_MC4_MISC" } // Seems to be RO |
| }; |
| |
| static const msr_entry_t model6fx_per_core_msrs[] = { |
| { 0x0010, "IA32_TIME_STAMP_COUNTER" }, |
| { 0x001b, "IA32_APIC_BASE" }, |
| { 0x003a, "IA32_FEATURE_CONTROL" }, |
| //{ 0x0079, "IA32_BIOS_UPDT_TRIG" }, // Seems to be RO |
| { 0x008b, "IA32_BIOS_SIGN_ID" }, |
| { 0x00e1, "SMM_CST_MISC_INFO" }, |
| { 0x00e7, "IA32_MPERF" }, |
| { 0x00e8, "IA32_APERF" }, |
| { 0x00fe, "IA32_MTRRCAP" }, |
| { 0x0179, "IA32_MCG_CAP" }, |
| { 0x017a, "IA32_MCG_STATUS" }, |
| { 0x0199, "IA32_PERF_CONTROL" }, |
| { 0x019a, "IA32_THERM_CTL" }, |
| { 0x019b, "IA32_THERM_INTERRUPT" }, |
| { 0x019c, "IA32_THERM_STATUS" }, |
| { 0x019d, "MSR_THERM2_CTL" }, |
| { 0x01d9, "IA32_DEBUGCTL" }, |
| { 0x0200, "IA32_MTRR_PHYSBASE0" }, |
| { 0x0201, "IA32_MTRR_PHYSMASK0" }, |
| { 0x0202, "IA32_MTRR_PHYSBASE1" }, |
| { 0x0203, "IA32_MTRR_PHYSMASK1" }, |
| { 0x0204, "IA32_MTRR_PHYSBASE2" }, |
| { 0x0205, "IA32_MTRR_PHYSMASK2" }, |
| { 0x0206, "IA32_MTRR_PHYSBASE3" }, |
| { 0x0207, "IA32_MTRR_PHYSMASK3" }, |
| { 0x0208, "IA32_MTRR_PHYSBASE4" }, |
| { 0x0209, "IA32_MTRR_PHYSMASK4" }, |
| { 0x020a, "IA32_MTRR_PHYSBASE5" }, |
| { 0x020b, "IA32_MTRR_PHYSMASK5" }, |
| { 0x020c, "IA32_MTRR_PHYSBASE6" }, |
| { 0x020d, "IA32_MTRR_PHYSMASK6" }, |
| { 0x020e, "IA32_MTRR_PHYSBASE7" }, |
| { 0x020f, "IA32_MTRR_PHYSMASK7" }, |
| { 0x0250, "IA32_MTRR_FIX64K_00000" }, |
| { 0x0258, "IA32_MTRR_FIX16K_80000" }, |
| { 0x0259, "IA32_MTRR_FIX16K_A0000" }, |
| { 0x0268, "IA32_MTRR_FIX4K_C0000" }, |
| { 0x0269, "IA32_MTRR_FIX4K_C8000" }, |
| { 0x026a, "IA32_MTRR_FIX4K_D0000" }, |
| { 0x026b, "IA32_MTRR_FIX4K_D8000" }, |
| { 0x026c, "IA32_MTRR_FIX4K_E0000" }, |
| { 0x026d, "IA32_MTRR_FIX4K_E8000" }, |
| { 0x026e, "IA32_MTRR_FIX4K_F0000" }, |
| { 0x026f, "IA32_MTRR_FIX4K_F8000" }, |
| { 0x02ff, "IA32_MTRR_DEF_TYPE" }, |
| //{ 0x00c000080, "IA32_CR_EFER" }, // Seems to be RO |
| }; |
| |
| typedef struct { |
| unsigned int model; |
| const msr_entry_t *global_msrs; |
| unsigned int num_global_msrs; |
| const msr_entry_t *per_core_msrs; |
| unsigned int num_per_core_msrs; |
| } cpu_t; |
| |
| cpu_t cpulist[] = { |
| { 0x006e0, model6ex_global_msrs, ARRAY_SIZE(model6ex_global_msrs), model6ex_per_core_msrs, ARRAY_SIZE(model6ex_per_core_msrs) }, |
| { 0x006f0, model6fx_global_msrs, ARRAY_SIZE(model6fx_global_msrs), model6fx_per_core_msrs, ARRAY_SIZE(model6fx_per_core_msrs) }, |
| }; |
| |
| cpu_t *cpu = NULL; |
| |
| /* Get CPU family and model, not the stepping |
| * (TODO: extended family/model) |
| */ |
| id = cpuid(1) & 0xff0; |
| for (i = 0; i < ARRAY_SIZE(cpulist); i++) { |
| if(cpulist[i].model == id) { |
| cpu = &cpulist[i]; |
| break; |
| } |
| } |
| |
| if (!cpu) { |
| printf("Error: Dumping MSRs on this CPU (0x%06x) is not (yet) supported.\n", id); |
| return -1; |
| } |
| |
| #ifndef DARWIN |
| fd_msr = open("/dev/cpu/0/msr", O_RDWR); |
| if (fd_msr < 0) { |
| perror("Error while opening /dev/cpu/0/msr"); |
| printf("Did you run 'modprobe msr'?\n"); |
| return -1; |
| } |
| #endif |
| |
| printf("\n===================== SHARED MSRs (All Cores) =====================\n"); |
| |
| for (i = 0; i < cpu->num_global_msrs; i++) { |
| msr = rdmsr(cpu->global_msrs[i].number); |
| printf(" MSR 0x%08X = 0x%08X:0x%08X (%s)\n", |
| cpu->global_msrs[i].number, msr.hi, msr.lo, |
| cpu->global_msrs[i].name); |
| } |
| |
| close(fd_msr); |
| |
| for (core = 0; core < 8; core++) { |
| #ifndef DARWIN |
| char msrfilename[64]; |
| memset(msrfilename, 0, 64); |
| sprintf(msrfilename, "/dev/cpu/%d/msr", core); |
| |
| fd_msr = open(msrfilename, O_RDWR); |
| |
| /* If the file is not there, we're probably through. No error, |
| * since we successfully opened /dev/cpu/0/msr before. |
| */ |
| if (fd_msr < 0) |
| break; |
| #endif |
| printf("\n====================== UNIQUE MSRs (core %d) ======================\n", core); |
| |
| for (i = 0; i < cpu->num_per_core_msrs; i++) { |
| msr = rdmsr(cpu->per_core_msrs[i].number); |
| printf(" MSR 0x%08X = 0x%08X:0x%08X (%s)\n", |
| cpu->per_core_msrs[i].number, msr.hi, msr.lo, |
| cpu->per_core_msrs[i].name); |
| } |
| #ifndef DARWIN |
| close(fd_msr); |
| #endif |
| } |
| |
| #ifndef DARWIN |
| if (msr_readerror) |
| printf("\n(*) Some MSRs could not be read. The marked values are unreliable.\n"); |
| #endif |
| return 0; |
| } |
| |
| |