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libcpuid/cpuid_tool/cpuid_tool.c
The Tumultuous Unicorn Of Darkness b7940c7029
Fix a regression in cpuid_tool when ident_required=0 for arg 
In 2b8023f733, I had to update the behavior of cpuid_tool to loop over all data.cpu_types items.
I did not realize since this change, it was not entering the loop for args with ident_required=0, because data.num_cpu_types was always 0, so print_info() was never called for such args.

In other words, args like --rdmsr or --cpuid did nothing due to this regression. This commit fix this regression.
2024-07-31 16:33:40 +02:00

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/*
* Copyright 2008 Veselin Georgiev,
* anrieffNOSPAM @ mgail_DOT.com (convert to gmail)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @page cpuid_tool
* @date 2008-11-19
* @author Veselin Georgiev
* @brief Command line interface to libcpuid
*
* @details
* This file is provides a direct interface to libcpuid. See the usage()
* function (or just run the program with the `--help' switch) for a short
* command line options reference.
*
* This file has several purposes:
*
* 1. When started with no arguments, the program outputs the RAW and decoded
* CPU data to files (`raw.txt' and `report.txt', respectively) - this is
* intended to be a dumb, doubleclicky tool for non-developer
* users, that can provide debug info about unrecognized processors to
* libcpuid developers.
* 2. When operated from the terminal with the `--report' option, it is a
* generic CPU-info utility.
* 3. Can be used in shell scripts, e.g. to get the name of the CPU, cache
* sizes, features, with query options like `--cache', `--brandstr', etc.
* 4. Finally, it serves to self-document libcpiud itself :)
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "libcpuid.h"
/* Globals: */
char raw_data_file[256] = "";
char out_file[256] = "";
typedef enum {
NEED_CPUID_PRESENT,
NEED_ARCHITECTURE,
NEED_FEATURE_LEVEL,
NEED_PURPOSE,
NEED_VENDOR_STR,
NEED_VENDOR_ID,
NEED_BRAND_STRING,
NEED_FAMILY,
NEED_MODEL,
NEED_STEPPING,
NEED_EXT_FAMILY,
NEED_EXT_MODEL,
NEED_IMPLEMENTER,
NEED_VARIANT,
NEED_PART_NUM,
NEED_REVISION,
NEED_NUM_CORES,
NEED_NUM_LOGICAL,
NEED_TOTAL_CPUS,
NEED_AFFI_MASK,
NEED_L1D_SIZE,
NEED_L1I_SIZE,
NEED_L2_SIZE,
NEED_L3_SIZE,
NEED_L4_SIZE,
NEED_L1D_ASSOC,
NEED_L1I_ASSOC,
NEED_L2_ASSOC,
NEED_L3_ASSOC,
NEED_L4_ASSOC,
NEED_L1D_CACHELINE,
NEED_L1I_CACHELINE,
NEED_L2_CACHELINE,
NEED_L3_CACHELINE,
NEED_L4_CACHELINE,
NEED_L1D_INSTANCES,
NEED_L1I_INSTANCES,
NEED_L2_INSTANCES,
NEED_L3_INSTANCES,
NEED_L4_INSTANCES,
NEED_CODENAME,
NEED_FEATURES,
NEED_CLOCK,
NEED_CLOCK_OS,
NEED_CLOCK_RDTSC,
NEED_CLOCK_IC,
NEED_RDMSR,
NEED_RDMSR_RAW,
NEED_SSE_UNIT_SIZE,
} output_data_switch;
int need_input = 0,
need_output = 0,
need_quiet = 0,
need_report = 0,
need_clockreport = 0,
need_timed_clockreport = 0,
verbose_level = 0,
need_version = 0,
need_cpulist = 0,
need_sgx = 0,
need_hypervisor = 0,
need_identify = 0;
#define MAX_REQUESTS 64
int num_requests = 0;
output_data_switch requests[MAX_REQUESTS];
FILE *fout;
const struct { output_data_switch sw; const char* synopsis; int ident_required; }
matchtable[] = {
{ NEED_CPUID_PRESENT, "--cpuid" , 0},
{ NEED_ARCHITECTURE , "--architecture" , 1},
{ NEED_FEATURE_LEVEL, "--feature-level", 1},
{ NEED_PURPOSE , "--purpose" , 1},
{ NEED_VENDOR_STR , "--vendorstr" , 1},
{ NEED_VENDOR_ID , "--vendorid" , 1},
{ NEED_BRAND_STRING , "--brandstr" , 1},
{ NEED_FAMILY , "--family" , 1},
{ NEED_MODEL , "--model" , 1},
{ NEED_STEPPING , "--stepping" , 1},
{ NEED_EXT_FAMILY , "--extfamily" , 1},
{ NEED_EXT_MODEL , "--extmodel" , 1},
{ NEED_IMPLEMENTER , "--implementer" , 1},
{ NEED_VARIANT , "--variant" , 1},
{ NEED_PART_NUM , "--part-num" , 1},
{ NEED_REVISION , "--revision" , 1},
{ NEED_NUM_CORES , "--cores" , 1},
{ NEED_NUM_LOGICAL , "--logical" , 1},
{ NEED_TOTAL_CPUS , "--total-cpus" , 1},
{ NEED_AFFI_MASK , "--affi-mask" , 1},
{ NEED_L1D_SIZE , "--l1d-cache" , 1},
{ NEED_L1I_SIZE , "--l1i-cache" , 1},
{ NEED_L2_SIZE , "--cache" , 1},
{ NEED_L2_SIZE , "--l2-cache" , 1},
{ NEED_L3_SIZE , "--l3-cache" , 1},
{ NEED_L4_SIZE , "--l4-cache" , 1},
{ NEED_L1D_ASSOC , "--l1d-assoc" , 1},
{ NEED_L1I_ASSOC , "--l1i-assoc" , 1},
{ NEED_L2_ASSOC , "--l2-assoc" , 1},
{ NEED_L3_ASSOC , "--l3-assoc" , 1},
{ NEED_L4_ASSOC , "--l4-assoc" , 1},
{ NEED_L1D_CACHELINE, "--l1d-cacheline", 1},
{ NEED_L1I_CACHELINE, "--l1i-cacheline", 1},
{ NEED_L2_CACHELINE , "--l2-cacheline" , 1},
{ NEED_L3_CACHELINE , "--l3-cacheline" , 1},
{ NEED_L4_CACHELINE , "--l4-cacheline" , 1},
{ NEED_L1D_INSTANCES, "--l1d-instances", 1},
{ NEED_L1I_INSTANCES, "--l1i-instances", 1},
{ NEED_L2_INSTANCES , "--l2-instances" , 1},
{ NEED_L3_INSTANCES , "--l3-instances" , 1},
{ NEED_L4_INSTANCES , "--l4-instances" , 1},
{ NEED_CODENAME , "--codename" , 1},
{ NEED_FEATURES , "--flags" , 1},
{ NEED_CLOCK , "--clock" , 0},
{ NEED_CLOCK_OS , "--clock-os" , 0},
{ NEED_CLOCK_RDTSC , "--clock-rdtsc" , 1},
{ NEED_CLOCK_IC , "--clock-ic" , 1},
{ NEED_RDMSR , "--rdmsr" , 0},
{ NEED_RDMSR_RAW , "--rdmsr-raw" , 0},
{ NEED_SSE_UNIT_SIZE, "--sse-size" , 1},
};
const int sz_match = (sizeof(matchtable) / sizeof(matchtable[0]));
/* functions */
static void usage(void)
{
int line_fill, l, i;
printf("Usage: cpuid_tool [options]\n\n");
printf("Options:\n");
printf(" -h, --help - Show this help\n");
printf(" --load=<file> - Load raw CPUID data from file\n");
printf(" --save=<file> - Acquire raw CPUID data and write it to file\n");
printf(" --report, --all - Report all decoded CPU info (w/o clock)\n");
printf(" --clock - in conjunction to --report: print CPU clock as well\n");
printf(" --clock-rdtsc - same as --clock, but use RDTSC for clock detection\n");
printf(" --cpulist - list all known CPUs\n");
printf(" --sgx - list SGX leaf data, if SGX is supported.\n");
printf(" --hypervisor - print hypervisor vendor if detected.\n");
printf(" --quiet - disable warnings\n");
printf(" --outfile=<file> - redirect all output to this file, instead of stdout\n");
printf(" --verbose, -v - be extra verbose (more keys increase verbosiness level)\n");
printf(" --version - print library version\n");
printf("\n");
printf("Query switches (generate 1 line of output per switch; in order of appearance):");
line_fill = 80;
for (i = 0; i < sz_match; i++) {
l = (int) strlen(matchtable[i].synopsis);
if (line_fill + l > 76) {
line_fill = 2;
printf("\n ");
}
printf("%s", matchtable[i].synopsis);
if (i < sz_match - 1) {
line_fill += l + 2;
printf(", ");
}
}
printf("\n\n");
printf("If `-' is used for <file>, then stdin/stdout will be used instead of files.\n");
printf("When no options are present, the program behaves as if it was invoked with\n");
printf(" cpuid_tool \"--save=raw.txt --outfile=report.txt --report --verbose\"\n");
}
static int parse_cmdline(int argc, char** argv)
{
#define xerror(msg)\
fprintf(stderr, "Error: %s\n\n", msg); \
fprintf(stderr, "Use -h to get a list of supported options\n"); \
return -1;
int i, j, recog, num_vs;
if (argc == 1) {
/* Default command line options */
need_output = 1;
strcpy(raw_data_file, "raw.txt");
strcpy(out_file, "report.txt");
need_report = 1;
verbose_level = 1;
return 1;
}
for (i = 1; i < argc; i++) {
char *arg = argv[i];
recog = 0;
if (!strcmp(arg, "-h") || !strcmp(arg, "--help")) {
usage();
return 0;
}
if (!strncmp(arg, "--load=", 7)) {
if (need_input) {
xerror("Too many `--load' options!");
}
if (need_output) {
xerror("Cannot have both `--load' and `--save' options!");
}
if (strlen(arg) <= 7) {
xerror("--load: bad file specification!");
}
need_input = 1;
strcpy(raw_data_file, arg + 7);
recog = 1;
}
if (!strncmp(arg, "--save=", 7)) {
if (need_output) {
xerror("Too many `--save' options!");
}
if (need_input) {
xerror("Cannot have both `--load' and `--save' options!");
}
if (strlen(arg) <= 7) {
xerror("--save: bad file specification!");
}
need_output = 1;
strcpy(raw_data_file, arg + 7);
recog = 1;
}
if (!strncmp(arg, "--outfile=", 10)) {
if (strlen(arg) <= 10) {
xerror("--output: bad file specification!");
}
strcpy(out_file, arg + 10);
recog = 1;
}
if (!strcmp(arg, "--report") || !strcmp(arg, "--all")) {
need_report = 1;
recog = 1;
}
if (!strcmp(arg, "--clock")) {
need_clockreport = 1;
recog = 1;
}
if (!strcmp(arg, "--clock-rdtsc")) {
need_clockreport = 1;
need_timed_clockreport = 1;
recog = 1;
}
if (!strcmp(arg, "--quiet")) {
need_quiet = 1;
recog = 1;
}
if (!strcmp(arg, "--verbose")) {
verbose_level++;
recog = 1;
}
if (!strcmp(arg, "--version")) {
need_version = 1;
recog = 1;
}
if (!strcmp(arg, "--cpulist")) {
need_cpulist = 1;
recog = 1;
}
if (!strcmp(arg, "--sgx")) {
need_sgx = 1;
need_identify = 1;
recog = 1;
}
if (!strcmp(arg, "--hypervisor")) {
need_hypervisor = 1;
need_identify = 1;
recog = 1;
}
if (arg[0] == '-' && arg[1] == 'v') {
num_vs = 1;
while (arg[num_vs] == 'v')
num_vs++;
if (arg[num_vs] == '\0') {
verbose_level += num_vs-1;
recog = 1;
}
}
for (j = 0; j < sz_match; j++)
if (!strcmp(arg, matchtable[j].synopsis)) {
if (num_requests >= MAX_REQUESTS) {
xerror("Too many requests!");
}
requests[num_requests++] = matchtable[j].sw;
recog = 1;
break;
}
if (!recog) {
fprintf(stderr, "Unrecognized option: `%s'\n\n", arg);
fprintf(stderr, "Use -h to get a list of supported options\n");
return -1;
}
}
return 1;
}
static void close_out(void)
{
fclose(fout);
}
static int check_need_raw_data(void)
{
int i, j;
if (need_output || need_report || need_identify) return 1;
for (i = 0; i < num_requests; i++) {
for (j = 0; j < sz_match; j++)
if (requests[i] == matchtable[j].sw &&
matchtable[j].ident_required) return 1;
}
return 0;
}
static void print_info(output_data_switch query, struct cpu_id_t* data)
{
int i, value;
struct msr_driver_t* handle;
/* Check if function is properly called */
if ((data == NULL) && check_need_raw_data()) {
fprintf(stderr, "print_info: raw data is required but not provided.\n");
return;
}
switch (query) {
case NEED_CPUID_PRESENT:
fprintf(fout, "%d\n", cpuid_present());
break;
case NEED_ARCHITECTURE:
fprintf(fout, "%s\n", cpu_architecture_str(data->architecture));
break;
case NEED_FEATURE_LEVEL:
fprintf(fout, "%s\n", cpu_feature_level_str(data->feature_level));
break;
case NEED_PURPOSE:
fprintf(fout, "%s\n", cpu_purpose_str(data->purpose));
break;
case NEED_VENDOR_STR:
fprintf(fout, "%s\n", data->vendor_str);
break;
case NEED_VENDOR_ID:
fprintf(fout, "%d\n", data->vendor);
break;
case NEED_BRAND_STRING:
fprintf(fout, "%s\n", data->brand_str);
break;
case NEED_FAMILY:
fprintf(fout, "%d\n", data->x86.family);
break;
case NEED_MODEL:
fprintf(fout, "%d\n", data->x86.model);
break;
case NEED_STEPPING:
fprintf(fout, "%d\n", data->x86.stepping);
break;
case NEED_EXT_FAMILY:
fprintf(fout, "%d\n", data->x86.ext_family);
break;
case NEED_EXT_MODEL:
fprintf(fout, "%d\n", data->x86.ext_model);
break;
case NEED_IMPLEMENTER:
fprintf(fout, "%d\n", data->arm.implementer);
break;
case NEED_VARIANT:
fprintf(fout, "%d\n", data->arm.variant);
break;
case NEED_PART_NUM:
fprintf(fout, "%d\n", data->arm.part_num);
break;
case NEED_REVISION:
fprintf(fout, "%d\n", data->arm.revision);
break;
case NEED_NUM_CORES:
fprintf(fout, "%d\n", data->num_cores);
break;
case NEED_NUM_LOGICAL:
fprintf(fout, "%d\n", data->num_logical_cpus);
break;
case NEED_TOTAL_CPUS:
fprintf(fout, "%d\n", cpuid_get_total_cpus());
break;
case NEED_AFFI_MASK:
fprintf(fout, "0x%s\n", affinity_mask_str(&data->affinity_mask));
break;
case NEED_L1D_SIZE:
fprintf(fout, "%d\n", data->l1_data_cache);
break;
case NEED_L1I_SIZE:
fprintf(fout, "%d\n", data->l1_instruction_cache);
break;
case NEED_L2_SIZE:
fprintf(fout, "%d\n", data->l2_cache);
break;
case NEED_L3_SIZE:
fprintf(fout, "%d\n", data->l3_cache);
break;
case NEED_L4_SIZE:
fprintf(fout, "%d\n", data->l4_cache);
break;
case NEED_L1D_ASSOC:
fprintf(fout, "%d\n", data->l1_data_assoc);
break;
case NEED_L1I_ASSOC:
fprintf(fout, "%d\n", data->l1_instruction_assoc);
break;
case NEED_L2_ASSOC:
fprintf(fout, "%d\n", data->l2_assoc);
break;
case NEED_L3_ASSOC:
fprintf(fout, "%d\n", data->l3_assoc);
break;
case NEED_L4_ASSOC:
fprintf(fout, "%d\n", data->l4_assoc);
break;
case NEED_L1D_CACHELINE:
fprintf(fout, "%d\n", data->l1_data_cacheline);
break;
case NEED_L1I_CACHELINE:
fprintf(fout, "%d\n", data->l1_instruction_cacheline);
break;
case NEED_L2_CACHELINE:
fprintf(fout, "%d\n", data->l2_cacheline);
break;
case NEED_L3_CACHELINE:
fprintf(fout, "%d\n", data->l3_cacheline);
break;
case NEED_L4_CACHELINE:
fprintf(fout, "%d\n", data->l4_cacheline);
break;
case NEED_L1D_INSTANCES:
fprintf(fout, "%d\n", data->l1_data_instances);
break;
case NEED_L1I_INSTANCES:
fprintf(fout, "%d\n", data->l1_instruction_instances);
break;
case NEED_L2_INSTANCES:
fprintf(fout, "%d\n", data->l2_instances);
break;
case NEED_L3_INSTANCES:
fprintf(fout, "%d\n", data->l3_instances);
break;
case NEED_L4_INSTANCES:
fprintf(fout, "%d\n", data->l4_instances);
break;
case NEED_CODENAME:
fprintf(fout, "%s\n", data->cpu_codename);
break;
case NEED_FEATURES:
{
for (i = 0; i < NUM_CPU_FEATURES; i++)
if (data->flags[i])
fprintf(fout, " %s", cpu_feature_str(i));
fprintf(fout, "\n");
break;
}
case NEED_CLOCK:
fprintf(fout, "%d\n", cpu_clock());
break;
case NEED_CLOCK_OS:
fprintf(fout, "%d\n", cpu_clock_by_os());
break;
case NEED_CLOCK_RDTSC:
fprintf(fout, "%d\n", cpu_clock_measure(400, 1));
break;
case NEED_CLOCK_IC:
fprintf(fout, "%d\n", cpu_clock_by_ic(25, 16));
break;
case NEED_RDMSR:
{
if ((handle = cpu_msr_driver_open()) == NULL) {
fprintf(fout, "Cannot open MSR driver: %s\n", cpuid_error());
} else {
if ((value = cpu_msrinfo(handle, INFO_MPERF)) != CPU_INVALID_VALUE)
fprintf(fout, " MSR.mperf : %d MHz\n", value);
if ((value = cpu_msrinfo(handle, INFO_APERF)) != CPU_INVALID_VALUE)
fprintf(fout, " MSR.aperf : %d MHz\n", value);
if ((value = cpu_msrinfo(handle, INFO_MIN_MULTIPLIER)) != CPU_INVALID_VALUE)
fprintf(fout, " min. multi.: %.2lf\n", value / 100.0);
if ((value = cpu_msrinfo(handle, INFO_CUR_MULTIPLIER)) != CPU_INVALID_VALUE)
fprintf(fout, " cur. multi.: %.2lf\n", value / 100.0);
if ((value = cpu_msrinfo(handle, INFO_MAX_MULTIPLIER)) != CPU_INVALID_VALUE)
fprintf(fout, " max. multi.: %.2lf\n", value / 100.0);
if ((value = cpu_msrinfo(handle, INFO_TEMPERATURE)) != CPU_INVALID_VALUE)
fprintf(fout, " temperature: %d degrees Celsius\n", value);
if ((value = cpu_msrinfo(handle, INFO_THROTTLING)) != CPU_INVALID_VALUE)
fprintf(fout, " throttling : %s\n", value ? "yes" : "no");
if ((value = cpu_msrinfo(handle, INFO_VOLTAGE)) != CPU_INVALID_VALUE)
fprintf(fout, " core volt. : %.2lf Volts\n", value / 100.0);
if ((value = cpu_msrinfo(handle, INFO_BUS_CLOCK)) != CPU_INVALID_VALUE)
fprintf(fout, " bus clock : %.2lf MHz\n", value / 100.0);
cpu_msr_driver_close(handle);
}
break;
}
case NEED_RDMSR_RAW:
{
if ((handle = cpu_msr_driver_open()) == NULL) {
fprintf(fout, "Cannot open MSR driver: %s\n", cpuid_error());
} else {
msr_serialize_raw_data(handle, "");
cpu_msr_driver_close(handle);
}
break;
}
case NEED_SSE_UNIT_SIZE:
{
fprintf(fout, "%d (%s)\n", data->x86.sse_size,
data->detection_hints[CPU_HINT_SSE_SIZE_AUTH] ? "authoritative" : "non-authoritative");
break;
}
default:
fprintf(fout, "How did you get here?!?\n");
break;
}
}
static void print_cpulist(void)
{
int i, j;
struct cpu_list_t list;
const struct { const char *name; cpu_vendor_t vendor; } cpu_vendors[] = {
{ "Intel", VENDOR_INTEL },
{ "AMD/Hygon", VENDOR_AMD },
{ "Cyrix", VENDOR_CYRIX },
{ "NexGen", VENDOR_NEXGEN },
{ "Transmeta", VENDOR_TRANSMETA },
{ "UMC", VENDOR_UMC },
{ "Centaur/VIA", VENDOR_CENTAUR },
{ "Rise", VENDOR_RISE },
{ "SiS", VENDOR_SIS },
{ "NSC", VENDOR_NSC },
{ "ARM", VENDOR_ARM },
{ "Broadcom", VENDOR_BROADCOM },
{ "Cavium", VENDOR_CAVIUM },
{ "DEC", VENDOR_DEC },
{ "FUJITSU", VENDOR_FUJITSU },
{ "HiSilicon", VENDOR_HISILICON },
{ "Infineon", VENDOR_INFINEON },
{ "Motorola/Freescale", VENDOR_FREESCALE },
{ "NVIDIA" , VENDOR_NVIDIA },
{ "APM", VENDOR_APM },
{ "Qualcomm", VENDOR_QUALCOMM },
{ "Samsung", VENDOR_SAMSUNG },
{ "Marvell" , VENDOR_MARVELL },
{ "Apple", VENDOR_APPLE },
{ "Faraday", VENDOR_FARADAY },
{ "Microsoft" , VENDOR_MICROSOFT },
{ "Phytium", VENDOR_PHYTIUM },
{ "Ampere" , VENDOR_AMPERE },
};
for (i = 0; i < sizeof(cpu_vendors)/sizeof(cpu_vendors[0]); i++) {
fprintf(fout, "-----%s-----\n", cpu_vendors[i].name);
cpuid_get_cpu_list(cpu_vendors[i].vendor, &list);
for (j = 0; j < list.num_entries; j++)
fprintf(fout, "%s\n", list.names[j]);
cpuid_free_cpu_list(&list);
}
}
static void print_sgx_data(const struct cpu_raw_data_t* raw, const struct cpu_id_t* data)
{
int i;
fprintf(fout, "SGX: %d (%s)\n", data->x86.sgx.present, data->x86.sgx.present ? "present" : "absent");
if (data->x86.sgx.present) {
fprintf(fout, "SGX max enclave size (32-bit): 2^%d\n", data->x86.sgx.max_enclave_32bit);
fprintf(fout, "SGX max enclave size (64-bit): 2^%d\n", data->x86.sgx.max_enclave_64bit);
fprintf(fout, "SGX1 extensions : %d (%s)\n", data->x86.sgx.flags[INTEL_SGX1], data->x86.sgx.flags[INTEL_SGX1] ? "present" : "absent");
fprintf(fout, "SGX2 extensions : %d (%s)\n", data->x86.sgx.flags[INTEL_SGX2], data->x86.sgx.flags[INTEL_SGX2] ? "present" : "absent");
fprintf(fout, "SGX MISCSELECT : %08x\n", data->x86.sgx.misc_select);
fprintf(fout, "SGX SECS.ATTRIBUTES mask : %016llx\n", (unsigned long long) data->x86.sgx.secs_attributes);
fprintf(fout, "SGX SECS.XSAVE feature mask : %016llx\n", (unsigned long long) data->x86.sgx.secs_xfrm);
fprintf(fout, "SGX EPC sections count : %d\n", data->x86.sgx.num_epc_sections);
for (i = 0; i < data->x86.sgx.num_epc_sections; i++) {
struct cpu_epc_t epc = cpuid_get_epc(i, raw);
fprintf(fout, " SGX EPC section #%-8d: start = %llx, size = %llu\n", i,
(unsigned long long) epc.start_addr, (unsigned long long) epc.length);
}
}
}
static void print_hypervisor(struct cpu_raw_data_t* raw, struct cpu_id_t* data)
{
int i;
const char *hypervisor_str = NULL;
const hypervisor_vendor_t hypervisor = cpuid_get_hypervisor(raw, data);
const struct { const char *name; hypervisor_vendor_t hypervisor; } hypervisors_vendors[NUM_HYPERVISOR_VENDORS] = {
{ "none", HYPERVISOR_NONE },
{ "FreeBSD bhyve", HYPERVISOR_BHYVE },
{ "Microsoft Hyper-V ", HYPERVISOR_HYPERV },
{ "KVM", HYPERVISOR_KVM },
{ "Parallels", HYPERVISOR_PARALLELS },
{ "QEMU", HYPERVISOR_QEMU },
{ "VirtualBox", HYPERVISOR_VIRTUALBOX },
{ "VMware", HYPERVISOR_VMWARE },
{ "Xen", HYPERVISOR_XEN },
};
for (i = 0; i < NUM_HYPERVISOR_VENDORS; i++)
if (hypervisors_vendors[i].hypervisor == hypervisor) {
hypervisor_str = hypervisors_vendors[i].name;
break;
}
fprintf(fout, "Hypervisor vendor: %s\n", (hypervisor_str == NULL) ? "unknown" : hypervisor_str);
if (hypervisor == HYPERVISOR_NONE)
fprintf(fout, "Caution: no hypervisor detected from CPUID bits, but a hypervisor may be hidden.\n"
"Refer to https://github.com/anrieff/libcpuid/issues/90#issuecomment-296568713\n");
}
int main(int argc, char** argv)
{
int parseres = parse_cmdline(argc, argv);
int i, readres, writeres;
int only_clock_queries;
uint8_t cpu_type_index;
struct cpu_raw_data_array_t raw_array = {
.with_affinity = false,
.num_raw = 0,
.raw = NULL
};
struct system_id_t data = {
.num_cpu_types = 0
};
if (parseres != 1)
return parseres;
/* In quiet mode, disable libcpuid warning messages: */
if (need_quiet)
cpuid_set_warn_function(NULL);
cpuid_set_verbosiness_level(verbose_level);
/* Redirect output, if necessary: */
if (strcmp(out_file, "") && strcmp(out_file, "-")) {
fout = fopen(out_file, "wt");
if (!fout) {
if (!need_quiet)
fprintf(stderr, "Cannot open `%s' for writing!\n", out_file);
return -1;
}
atexit(close_out);
} else {
fout = stdout;
}
/* If requested, print library version: */
if (need_version)
fprintf(fout, "%s\n", cpuid_lib_version());
if (need_input) {
/* We have a request to input raw CPUID data from file: */
if (!strcmp(raw_data_file, "-"))
/* Input from stdin */
readres = cpuid_deserialize_all_raw_data(&raw_array, "");
else
/* Input from file */
readres = cpuid_deserialize_all_raw_data(&raw_array, raw_data_file);
if (readres < 0) {
if (!need_quiet) {
fprintf(stderr, "Cannot deserialize raw data from ");
if (!strcmp(raw_data_file, "-"))
fprintf(stderr, "stdin\n");
else
fprintf(stderr, "file `%s'\n", raw_data_file);
/* Print the error message */
fprintf(stderr, "Error: %s\n", cpuid_error());
}
return -1;
}
} else {
if (check_need_raw_data()) {
/* Try to obtain raw CPUID data from the CPU: */
readres = cpuid_get_all_raw_data(&raw_array);
if (readres < 0) {
if (!need_quiet) {
fprintf(stderr, "Cannot obtain raw CPU data!\n");
fprintf(stderr, "Error: %s\n", cpuid_error());
}
return -1;
}
}
}
/* Need to dump raw CPUID data to file: */
if (need_output) {
if (!strcmp(raw_data_file, "-"))
/* Serialize to stdout */
writeres = cpuid_serialize_all_raw_data(&raw_array, "");
else
/* Serialize to file */
writeres = cpuid_serialize_all_raw_data(&raw_array, raw_data_file);
if (writeres < 0) {
if (!need_quiet) {
fprintf(stderr, "Cannot serialize raw data to ");
if (!strcmp(raw_data_file, "-"))
fprintf(stderr, "stdout\n");
else
fprintf(stderr, "file `%s'\n", raw_data_file);
/* Print the error message */
fprintf(stderr, "Error: %s\n", cpuid_error());
}
return -1;
}
}
if (need_report) {
if (verbose_level >= 1) {
printf("Writing decoded CPU report to `%s'\n", out_file);
}
/*
* Try CPU identification
* (this fill the `data' structure with decoded CPU features)
*/
if (cpu_identify_all(&raw_array, &data) < 0)
fprintf(fout, "Error identifying the CPU: %s\n", cpuid_error());
else if (data.num_cpu_types == 0)
fprintf(fout, "The cpu_types array is empty: there is nothing to report\n");
else {
/* Write a thorough report of cpu_id_t structure to output (usually stdout) */
fprintf(fout, "CPUID is present\n");
/* OK, now write what we have in `data'...: */
for (cpu_type_index = 0; cpu_type_index < data.num_cpu_types; cpu_type_index++) {
fprintf(fout, "CPU Info for type #%d:\n------------------\n", cpu_type_index);
fprintf(fout, " arch : %s\n", cpu_architecture_str(data.cpu_types[cpu_type_index].architecture));
fprintf(fout, " feat_level : %s\n", cpu_feature_level_str(data.cpu_types[cpu_type_index].feature_level));
fprintf(fout, " purpose : %s\n", cpu_purpose_str(data.cpu_types[cpu_type_index].purpose));
fprintf(fout, " vendor_str : `%s'\n", data.cpu_types[cpu_type_index].vendor_str);
fprintf(fout, " vendor id : %d\n", (int) data.cpu_types[cpu_type_index].vendor);
fprintf(fout, " brand_str : `%s'\n", data.cpu_types[cpu_type_index].brand_str);
if (data.cpu_types[cpu_type_index].architecture == ARCHITECTURE_X86) {
fprintf(fout, " family : %d (%02Xh)\n", data.cpu_types[cpu_type_index].x86.family, data.cpu_types[cpu_type_index].x86.family);
fprintf(fout, " model : %d (%02Xh)\n", data.cpu_types[cpu_type_index].x86.model, data.cpu_types[cpu_type_index].x86.model);
fprintf(fout, " stepping : %d (%02Xh)\n", data.cpu_types[cpu_type_index].x86.stepping, data.cpu_types[cpu_type_index].x86.stepping);
fprintf(fout, " ext_family : %d (%02Xh)\n", data.cpu_types[cpu_type_index].x86.ext_family, data.cpu_types[cpu_type_index].x86.ext_family);
fprintf(fout, " ext_model : %d (%02Xh)\n", data.cpu_types[cpu_type_index].x86.ext_model, data.cpu_types[cpu_type_index].x86.ext_model);
}
else if (data.cpu_types[cpu_type_index].architecture == ARCHITECTURE_ARM) {
fprintf(fout, " implementer: %d (%02Xh)\n", data.cpu_types[cpu_type_index].arm.implementer, data.cpu_types[cpu_type_index].arm.implementer);
fprintf(fout, " variant : %d (%02Xh)\n", data.cpu_types[cpu_type_index].arm.variant, data.cpu_types[cpu_type_index].arm.variant);
fprintf(fout, " part_num : %d (%02Xh)\n", data.cpu_types[cpu_type_index].arm.part_num, data.cpu_types[cpu_type_index].arm.part_num);
fprintf(fout, " revision : %d (%02Xh)\n", data.cpu_types[cpu_type_index].arm.revision, data.cpu_types[cpu_type_index].arm.revision);
}
fprintf(fout, " num_cores : %d\n", data.cpu_types[cpu_type_index].num_cores);
fprintf(fout, " num_logical: %d\n", data.cpu_types[cpu_type_index].num_logical_cpus);
fprintf(fout, " tot_logical: %d\n", data.cpu_types[cpu_type_index].total_logical_cpus);
fprintf(fout, " affi_mask : 0x%s\n", affinity_mask_str(&data.cpu_types[cpu_type_index].affinity_mask));
if (data.cpu_types[cpu_type_index].architecture == ARCHITECTURE_X86) {
fprintf(fout, " L1 D cache : %d KB\n", data.cpu_types[cpu_type_index].l1_data_cache);
fprintf(fout, " L1 I cache : %d KB\n", data.cpu_types[cpu_type_index].l1_instruction_cache);
fprintf(fout, " L2 cache : %d KB\n", data.cpu_types[cpu_type_index].l2_cache);
fprintf(fout, " L3 cache : %d KB\n", data.cpu_types[cpu_type_index].l3_cache);
fprintf(fout, " L4 cache : %d KB\n", data.cpu_types[cpu_type_index].l4_cache);
fprintf(fout, " L1D assoc. : %d-way\n", data.cpu_types[cpu_type_index].l1_data_assoc);
fprintf(fout, " L1I assoc. : %d-way\n", data.cpu_types[cpu_type_index].l1_instruction_assoc);
fprintf(fout, " L2 assoc. : %d-way\n", data.cpu_types[cpu_type_index].l2_assoc);
fprintf(fout, " L3 assoc. : %d-way\n", data.cpu_types[cpu_type_index].l3_assoc);
fprintf(fout, " L4 assoc. : %d-way\n", data.cpu_types[cpu_type_index].l4_assoc);
fprintf(fout, " L1D line sz: %d bytes\n", data.cpu_types[cpu_type_index].l1_data_cacheline);
fprintf(fout, " L1I line sz: %d bytes\n", data.cpu_types[cpu_type_index].l1_instruction_cacheline);
fprintf(fout, " L2 line sz : %d bytes\n", data.cpu_types[cpu_type_index].l2_cacheline);
fprintf(fout, " L3 line sz : %d bytes\n", data.cpu_types[cpu_type_index].l3_cacheline);
fprintf(fout, " L4 line sz : %d bytes\n", data.cpu_types[cpu_type_index].l4_cacheline);
fprintf(fout, " L1D inst. : %d\n", data.cpu_types[cpu_type_index].l1_data_instances);
fprintf(fout, " L1I inst. : %d\n", data.cpu_types[cpu_type_index].l1_instruction_instances);
fprintf(fout, " L2 inst. : %d\n", data.cpu_types[cpu_type_index].l2_instances);
fprintf(fout, " L3 inst. : %d\n", data.cpu_types[cpu_type_index].l3_instances);
fprintf(fout, " L4 inst. : %d\n", data.cpu_types[cpu_type_index].l4_instances);
fprintf(fout, " SSE units : %d bits (%s)\n", data.cpu_types[cpu_type_index].x86.sse_size, data.cpu_types[cpu_type_index].detection_hints[CPU_HINT_SSE_SIZE_AUTH] ? "authoritative" : "non-authoritative");
}
fprintf(fout, " code name : `%s'\n", data.cpu_types[cpu_type_index].cpu_codename);
fprintf(fout, " features :");
/*
* Here we enumerate all CPU feature bits, and when a feature
* is present output its name:
*/
for (i = 0; i < NUM_CPU_FEATURES; i++)
if (data.cpu_types[cpu_type_index].flags[i])
fprintf(fout, " %s", cpu_feature_str(i));
fprintf(fout, "\n");
}
}
/* Is CPU clock info requested? */
if (need_clockreport) {
if (need_timed_clockreport) {
/* Here we use the RDTSC-based routine */
fprintf(fout, " cpu clock : %d MHz\n",
cpu_clock_measure(400, 1));
} else {
/* Here we use the OS-provided info */
fprintf(fout, " cpu clock : %d MHz\n",
cpu_clock());
}
}
}
/*
* Check if we have any queries to process.
* We have to handle the case when `--clock' or `--clock-rdtsc' options
* are present.
* If in report mode, this will generate spurious output after the
* report, if not handled explicitly.
*/
only_clock_queries = 1;
for (i = 0; i < num_requests; i++)
if (requests[i] != NEED_CLOCK && requests[i] != NEED_CLOCK_RDTSC) {
only_clock_queries = 0;
break;
}
/* OK, process all queries. */
if (((!need_report || !only_clock_queries) && num_requests > 0) || need_identify) {
if (check_need_raw_data()) {
/* Identify the CPU. Make it do cpuid_get_all_raw_data() itself */
if (cpu_identify_all(&raw_array, &data) < 0) {
if (!need_quiet)
fprintf(stderr,
"Error identifying the CPU: %s\n",
cpuid_error());
return -1;
}
for (cpu_type_index = 0; cpu_type_index < data.num_cpu_types; cpu_type_index++) {
if (raw_array.with_affinity && (cpu_type_index > 0))
fprintf(fout, "--------------------------------------------------------------------------------\n");
for (i = 0; i < num_requests; i++)
print_info(requests[i], &data.cpu_types[cpu_type_index]);
}
}
else
for (i = 0; i < num_requests; i++)
print_info(requests[i], NULL);
}
if (need_cpulist) {
print_cpulist();
}
if (need_sgx) {
print_sgx_data(&raw_array.raw[0], &data.cpu_types[0]);
}
if (need_hypervisor) {
print_hypervisor(&raw_array.raw[0], &data.cpu_types[0]);
}
cpuid_free_raw_data_array(&raw_array);
cpuid_free_system_id(&data);
return 0;
}
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