/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef MSRTOOL_H #define MSRTOOL_H #include #include #if (defined(__MACH__) && defined(__APPLE__)) /* DirectHW is available here: https://www.coreboot.org/DirectHW */ #define __DARWIN__ #include #endif #if defined(__FreeBSD__) #include #include #endif #include #define HEXCHARS "0123456789abcdefABCDEF" typedef enum { MSRTYPE_RDONLY, MSRTYPE_RDWR, MSRTYPE_WRONLY, MSRTYPE_EOT } MsrTypes; typedef enum { PRESENT_RSVD, PRESENT_DEC, PRESENT_BIN, PRESENT_OCT, PRESENT_HEX, PRESENT_HEXDEC, PRESENT_STR, } PresentTypes; struct msr { uint32_t hi; uint32_t lo; }; struct msrbitvalues { const struct msr value; const char *text; }; struct msrbits { const uint8_t start; const uint8_t size; const char *name; const char *desc; const uint8_t present; const struct msrbitvalues bitval[32]; }; struct msrdef { const uint32_t addr; const uint8_t type; const struct msr resetval; const char *symbol; const char *desc; const struct msrbits bits[65]; }; #define MSR1(lo) { 0, (lo) } #define MSR2(hi,lo) { (hi), (lo) } #define BITVAL_EOT .text = NULL #define BITVAL_ISEOT(bv) (NULL == (bv).text) #define BITS_EOT .size = 0 #define BITS_ISEOT(b) (0 == (b).size) #define MSR_EOT .type = MSRTYPE_EOT #define MSR_ISEOT(m) (MSRTYPE_EOT == (m).type) #define NOBITS {{ BITVAL_EOT }} #define RESERVED "RSVD", "Reserved", PRESENT_HEXDEC, NOBITS #define MAX_CORES 8 typedef enum { VENDOR_INTEL = 0x756e6547, VENDOR_AMD = 0x68747541, VENDOR_CENTAUR = 0x746e6543, } vendor_t; struct cpuid_t { uint8_t family; uint8_t model; uint8_t stepping; uint8_t ext_family; uint8_t ext_model; vendor_t vendor; }; struct targetdef { const char *name; const char *prettyname; int (*probe)(const struct targetdef *target, const struct cpuid_t *id); const struct msrdef *msrs; }; #define TARGET_EOT .name = NULL #define TARGET_ISEOT(t) (NULL == (t).name) enum SysModes { SYS_RDONLY = 0, SYS_WRONLY, SYS_RDWR }; struct sysdef { const char *name; const char *prettyname; int (*probe)(const struct sysdef *system); int (*open)(uint8_t cpu, enum SysModes mode); int (*close)(uint8_t cpu); int (*rdmsr)(uint8_t cpu, uint32_t addr, struct msr *val); }; #define SYSTEM_EOT .name = NULL #define SYSTEM_ISEOT(s) (NULL == (s).name) extern const struct sysdef *sys; extern uint8_t targets_found; extern const struct targetdef **targets; extern uint8_t reserved, verbose, quiet; extern struct pci_access *pacc; #define printf_quiet(x...) do { if (!quiet) fprintf(stderr,x); } while(0) #define printf_verbose(x...) do { if (verbose && !quiet) fprintf(stderr,x); } while(0) #define SYSERROR(call, addr) do { \ const struct msrdef *m = findmsrdef(addr); \ if (m) \ fprintf(stderr, "%s: " #call "(0x%08x) %s: %s\n", __func__, addr, m->symbol, strerror(errno)); \ else \ fprintf(stderr, "%s: " #call "(0x%08x): %s\n", __func__, addr, strerror(errno)); \ } while (0); /* sys.c */ struct cpuid_t *cpuid(void); struct pci_dev *pci_dev_find(uint16_t vendor, uint16_t device); /* msrutils.c */ void hexprint(FILE *f, const struct msr val, const uint8_t bits); void strprint(FILE *f, const struct msr val, const uint8_t bits); int msr_eq(const struct msr a, const struct msr b); struct msr msr_shl(const struct msr a, const uint8_t bits); struct msr msr_shr(const struct msr a, const uint8_t bits); void msr_and(struct msr *a, const struct msr b); const struct msrdef *findmsrdef(const uint32_t addr); uint32_t msraddrbyname(const char *name); void dumpmsrdefs(const struct targetdef *t); int dumpmsrdefsvals(FILE *f, const struct targetdef *t, const uint8_t cpu); uint8_t str2msr(char *str, struct msr *msr, char **endptr); void decodemsr(const uint8_t cpu, const uint32_t addr, const struct msr val); uint8_t diff_msr(FILE *fout, const uint32_t addr, const struct msr a, const struct msr b); /** system externs **/ /* linux.c */ extern int linux_probe(const struct sysdef *system); extern int linux_open(uint8_t cpu, enum SysModes mode); extern int linux_close(uint8_t cpu); extern int linux_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val); /* darwin.c */ extern int darwin_probe(const struct sysdef *system); extern int darwin_open(uint8_t cpu, enum SysModes mode); extern int darwin_close(uint8_t cpu); extern int darwin_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val); /* freebsd.c */ extern int freebsd_probe(const struct sysdef *system); extern int freebsd_open(uint8_t cpu, enum SysModes mode); extern int freebsd_close(uint8_t cpu); extern int freebsd_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val); /** target externs **/ /* geodegx2.c */ extern int geodegx2_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef geodegx2_msrs[]; /* geodelx.c */ extern int geodelx_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef geodelx_msrs[]; /* cs5536.c */ extern int cs5536_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef cs5536_msrs[]; /* k8.c */ extern int k8_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef k8_msrs[]; /* via_c7.c */ extern int via_c7_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef via_c7_msrs[]; /* intel_pentium3_early.c */ extern int intel_pentium3_early_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef intel_pentium3_early_msrs[]; /* intel_pentium3.c */ extern int intel_pentium3_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef intel_pentium3_msrs[]; /* intel_core1.c */ extern int intel_core1_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef intel_core1_msrs[]; /* intel_core2_early.c */ extern int intel_core2_early_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef intel_core2_early_msrs[]; /* intel_core2_later.c */ extern int intel_core2_later_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef intel_core2_later_msrs[]; /* intel_pentium4_early.c */ extern int intel_pentium4_early_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef intel_pentium4_early_msrs[]; /* intel_pentium4_later.c */ extern int intel_pentium4_later_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef intel_pentium4_later_msrs[]; /* intel_pentium_d.c */ extern int intel_pentium_d_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef intel_pentium_d_msrs[]; /* intel_nehalem.c */ extern int intel_nehalem_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef intel_nehalem_msrs[]; /* intel_atom.c */ extern int intel_atom_probe(const struct targetdef *t, const struct cpuid_t *id); extern const struct msrdef intel_atom_msrs[]; #endif /* MSRTOOL_H */