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5dd7507c CQ |
1 | /* |
2 | * lscpu - CPU architecture information helper | |
3 | * | |
4 | * Copyright (C) 2008 Cai Qian <qcai@redhat.com> | |
5 | * Copyright (C) 2008 Karel Zak <kzak@redhat.com> | |
6 | * | |
80dde62f | 7 | * This program is free software; you can redistribute it and/or modify |
5dd7507c | 8 | * it under the terms of the GNU General Public License as published by |
80dde62f | 9 | * the Free Software Foundation; either version 2 of the License, or |
5dd7507c CQ |
10 | * (at your option) any later version. |
11 | * | |
80dde62f | 12 | * This program is distributed in the hope that it would be useful, |
5dd7507c CQ |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
80dde62f KZ |
18 | * along with this program; if not, write to the Free Software Foundation, |
19 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
5dd7507c CQ |
20 | */ |
21 | ||
22 | #include <ctype.h> | |
23 | #include <dirent.h> | |
5dd7507c CQ |
24 | #include <errno.h> |
25 | #include <fcntl.h> | |
26 | #include <getopt.h> | |
27 | #include <stdio.h> | |
28 | #include <stdlib.h> | |
29 | #include <string.h> | |
30 | #include <sys/utsname.h> | |
31 | #include <unistd.h> | |
32 | #include <stdarg.h> | |
39561c70 KZ |
33 | #include <sys/types.h> |
34 | #include <sys/stat.h> | |
5dd7507c | 35 | |
7e03f383 | 36 | #include "cpuset.h" |
5dd7507c | 37 | #include "nls.h" |
4581647a | 38 | #include "xalloc.h" |
eb76ca98 | 39 | #include "c.h" |
477251f8 KZ |
40 | #include "strutils.h" |
41 | #include "bitops.h" | |
42 | ||
5dd7507c CQ |
43 | |
44 | #define CACHE_MAX 100 | |
45 | ||
46 | /* /sys paths */ | |
d50363cd | 47 | #define _PATH_SYS_SYSTEM "/sys/devices/system" |
7e03f383 | 48 | #define _PATH_SYS_CPU _PATH_SYS_SYSTEM "/cpu" |
d50363cd | 49 | #define _PATH_PROC_XEN "/proc/xen" |
c8b64f6d | 50 | #define _PATH_PROC_XENCAP _PATH_PROC_XEN "/capabilities" |
d50363cd KZ |
51 | #define _PATH_PROC_CPUINFO "/proc/cpuinfo" |
52 | #define _PATH_PROC_PCIDEVS "/proc/bus/pci/devices" | |
5dd7507c | 53 | |
c8b64f6d KZ |
54 | /* virtualization types */ |
55 | enum { | |
56 | VIRT_NONE = 0, | |
57 | VIRT_PARA, | |
58 | VIRT_FULL | |
59 | }; | |
60 | const char *virt_types[] = { | |
61 | [VIRT_NONE] = N_("none"), | |
62 | [VIRT_PARA] = N_("para"), | |
63 | [VIRT_FULL] = N_("full") | |
64 | }; | |
65 | ||
66 | /* hypervisor vendors */ | |
67 | enum { | |
68 | HYPER_NONE = 0, | |
69 | HYPER_XEN, | |
70 | HYPER_KVM, | |
99fbc877 SH |
71 | HYPER_MSHV, |
72 | HYPER_VMWARE | |
c8b64f6d KZ |
73 | }; |
74 | const char *hv_vendors[] = { | |
75 | [HYPER_NONE] = NULL, | |
76 | [HYPER_XEN] = "Xen", | |
77 | [HYPER_KVM] = "KVM", | |
99fbc877 SH |
78 | [HYPER_MSHV] = "Microsoft", |
79 | [HYPER_VMWARE] = "VMware" | |
c8b64f6d KZ |
80 | }; |
81 | ||
f633ad4e | 82 | /* CPU modes */ |
79e8b41a | 83 | enum { |
f633ad4e KZ |
84 | MODE_32BIT = (1 << 1), |
85 | MODE_64BIT = (1 << 2) | |
79e8b41a | 86 | }; |
c8b64f6d | 87 | |
e8aa16ee KZ |
88 | /* cache(s) description */ |
89 | struct cpu_cache { | |
7e03f383 KZ |
90 | char *name; |
91 | char *size; | |
92 | ||
93 | int nsharedmaps; | |
94 | cpu_set_t **sharedmaps; | |
e8aa16ee KZ |
95 | }; |
96 | ||
97 | /* global description */ | |
98 | struct lscpu_desc { | |
5dd7507c CQ |
99 | char *arch; |
100 | char *vendor; | |
101 | char *family; | |
102 | char *model; | |
c8b64f6d KZ |
103 | char *virtflag; /* virtualization flag (vmx, svm) */ |
104 | int hyper; /* hypervisor vendor ID */ | |
105 | int virtype; /* VIRT_PARA|FULL|NONE ? */ | |
5dd7507c CQ |
106 | char *mhz; |
107 | char *stepping; | |
9b8d4d5f | 108 | char *bogomips; |
5dd7507c | 109 | char *flags; |
79e8b41a KZ |
110 | int mode; /* rm, lm or/and tm */ |
111 | ||
7e03f383 | 112 | int ncpus; /* number of CPUs */ |
aac1e59e | 113 | cpu_set_t *online; /* mask with online CPUs */ |
7e03f383 KZ |
114 | |
115 | int nnodes; /* number of NUMA modes */ | |
116 | cpu_set_t **nodemaps; /* array with NUMA nodes */ | |
117 | ||
56baaa4e HC |
118 | /* books -- based on book_siblings (internal kernel map of cpuX's |
119 | * hardware threads within the same book */ | |
120 | int nbooks; /* number of all online books */ | |
121 | cpu_set_t **bookmaps; /* unique book_siblings */ | |
122 | ||
7e03f383 KZ |
123 | /* sockets -- based on core_siblings (internal kernel map of cpuX's |
124 | * hardware threads within the same physical_package_id (socket)) */ | |
e282eec2 | 125 | int nsockets; /* number of all online sockets */ |
7e03f383 KZ |
126 | cpu_set_t **socketmaps; /* unique core_siblings */ |
127 | ||
128 | /* cores -- based on thread_siblings (internel kernel map of cpuX's | |
129 | * hardware threads within the same core as cpuX) */ | |
e282eec2 | 130 | int ncores; /* number of all online cores */ |
7e03f383 KZ |
131 | cpu_set_t **coremaps; /* unique thread_siblings */ |
132 | ||
e282eec2 | 133 | int nthreads; /* number of online threads */ |
7e03f383 KZ |
134 | |
135 | int ncaches; | |
136 | struct cpu_cache *caches; | |
5dd7507c CQ |
137 | }; |
138 | ||
d50363cd KZ |
139 | static size_t sysrootlen; |
140 | static char pathbuf[PATH_MAX]; | |
7e03f383 | 141 | static int maxcpus; /* size in bits of kernel cpu mask */ |
5dd7507c | 142 | |
aac1e59e KZ |
143 | #define is_cpu_online(_d, _cpu) \ |
144 | ((_d) && (_d)->online ? \ | |
145 | CPU_ISSET_S((_cpu), CPU_ALLOC_SIZE(maxcpus), (_d)->online) : 0) | |
146 | ||
d50363cd KZ |
147 | static FILE *path_fopen(const char *mode, int exit_on_err, const char *path, ...) |
148 | __attribute__ ((__format__ (__printf__, 3, 4))); | |
ef173bde KZ |
149 | static void path_getstr(char *result, size_t len, const char *path, ...) |
150 | __attribute__ ((__format__ (__printf__, 3, 4))); | |
151 | static int path_getnum(const char *path, ...) | |
152 | __attribute__ ((__format__ (__printf__, 1, 2))); | |
5dd7507c CQ |
153 | static int path_exist(const char *path, ...) |
154 | __attribute__ ((__format__ (__printf__, 1, 2))); | |
7e03f383 | 155 | static cpu_set_t *path_cpuset(const char *path, ...) |
5dd7507c CQ |
156 | __attribute__ ((__format__ (__printf__, 1, 2))); |
157 | ||
477251f8 KZ |
158 | /* |
159 | * Parsable output | |
160 | */ | |
161 | enum { | |
162 | COL_CPU, | |
163 | COL_CORE, | |
164 | COL_SOCKET, | |
165 | COL_NODE, | |
166 | COL_BOOK, | |
167 | COL_CACHE | |
168 | }; | |
169 | ||
170 | static const char *colnames[] = | |
171 | { | |
172 | [COL_CPU] = "CPU", | |
173 | [COL_CORE] = "Core", | |
174 | [COL_SOCKET] = "Socket", | |
175 | [COL_NODE] = "Node", | |
176 | [COL_BOOK] = "Book", | |
177 | [COL_CACHE] = "Cache" | |
178 | }; | |
179 | ||
180 | ||
181 | static int column_name_to_id(const char *name, size_t namesz) | |
182 | { | |
329fd1c3 | 183 | size_t i; |
477251f8 KZ |
184 | |
185 | for (i = 0; i < ARRAY_SIZE(colnames); i++) { | |
186 | const char *cn = colnames[i]; | |
187 | ||
188 | if (!strncasecmp(name, cn, namesz) && !*(cn + namesz)) | |
189 | return i; | |
190 | } | |
191 | warnx(_("unknown column: %s"), name); | |
192 | return -1; | |
193 | } | |
194 | ||
d50363cd KZ |
195 | static const char * |
196 | path_vcreate(const char *path, va_list ap) | |
197 | { | |
198 | if (sysrootlen) | |
199 | vsnprintf(pathbuf + sysrootlen, | |
200 | sizeof(pathbuf) - sysrootlen, path, ap); | |
201 | else | |
202 | vsnprintf(pathbuf, sizeof(pathbuf), path, ap); | |
203 | return pathbuf; | |
204 | } | |
205 | ||
5dd7507c | 206 | static FILE * |
d50363cd | 207 | path_vfopen(const char *mode, int exit_on_error, const char *path, va_list ap) |
5dd7507c | 208 | { |
d50363cd KZ |
209 | FILE *f; |
210 | const char *p = path_vcreate(path, ap); | |
211 | ||
212 | f = fopen(p, mode); | |
213 | if (!f && exit_on_error) | |
214 | err(EXIT_FAILURE, _("error: cannot open %s"), p); | |
215 | return f; | |
5dd7507c CQ |
216 | } |
217 | ||
218 | static FILE * | |
d50363cd | 219 | path_fopen(const char *mode, int exit_on_error, const char *path, ...) |
5dd7507c | 220 | { |
d50363cd KZ |
221 | FILE *fd; |
222 | va_list ap; | |
223 | ||
224 | va_start(ap, path); | |
fe81c7d1 | 225 | fd = path_vfopen(mode, exit_on_error, path, ap); |
d50363cd KZ |
226 | va_end(ap); |
227 | ||
228 | return fd; | |
5dd7507c CQ |
229 | } |
230 | ||
231 | static void | |
ef173bde KZ |
232 | path_getstr(char *result, size_t len, const char *path, ...) |
233 | { | |
234 | FILE *fd; | |
235 | va_list ap; | |
236 | ||
237 | va_start(ap, path); | |
d50363cd | 238 | fd = path_vfopen("r", 1, path, ap); |
ef173bde KZ |
239 | va_end(ap); |
240 | ||
241 | if (!fgets(result, len, fd)) | |
242 | err(EXIT_FAILURE, _("failed to read: %s"), pathbuf); | |
243 | fclose(fd); | |
244 | ||
245 | len = strlen(result); | |
246 | if (result[len - 1] == '\n') | |
247 | result[len - 1] = '\0'; | |
248 | } | |
249 | ||
250 | static int | |
251 | path_getnum(const char *path, ...) | |
5dd7507c CQ |
252 | { |
253 | FILE *fd; | |
254 | va_list ap; | |
ef173bde | 255 | int result; |
5dd7507c CQ |
256 | |
257 | va_start(ap, path); | |
d50363cd | 258 | fd = path_vfopen("r", 1, path, ap); |
5dd7507c CQ |
259 | va_end(ap); |
260 | ||
ef173bde | 261 | if (fscanf(fd, "%d", &result) != 1) { |
5dd7507c | 262 | if (ferror(fd)) |
d50363cd | 263 | err(EXIT_FAILURE, _("failed to read: %s"), pathbuf); |
5dd7507c | 264 | else |
d50363cd | 265 | errx(EXIT_FAILURE, _("parse error: %s"), pathbuf); |
5dd7507c CQ |
266 | } |
267 | fclose(fd); | |
ef173bde | 268 | return result; |
5dd7507c CQ |
269 | } |
270 | ||
271 | static int | |
272 | path_exist(const char *path, ...) | |
273 | { | |
274 | va_list ap; | |
d50363cd | 275 | const char *p; |
5dd7507c CQ |
276 | |
277 | va_start(ap, path); | |
d50363cd | 278 | p = path_vcreate(path, ap); |
5dd7507c CQ |
279 | va_end(ap); |
280 | ||
d50363cd | 281 | return access(p, F_OK) == 0; |
5dd7507c CQ |
282 | } |
283 | ||
7e03f383 | 284 | static cpu_set_t * |
aac1e59e | 285 | path_cpuparse(int islist, const char *path, va_list ap) |
5dd7507c | 286 | { |
7e03f383 | 287 | FILE *fd; |
7e03f383 KZ |
288 | cpu_set_t *set; |
289 | size_t setsize, len = maxcpus * 7; | |
290 | char buf[len]; | |
5dd7507c | 291 | |
7e03f383 | 292 | fd = path_vfopen("r", 1, path, ap); |
5dd7507c | 293 | |
7e03f383 KZ |
294 | if (!fgets(buf, len, fd)) |
295 | err(EXIT_FAILURE, _("failed to read: %s"), pathbuf); | |
296 | fclose(fd); | |
5dd7507c | 297 | |
7e03f383 KZ |
298 | len = strlen(buf); |
299 | if (buf[len - 1] == '\n') | |
300 | buf[len - 1] = '\0'; | |
301 | ||
302 | set = cpuset_alloc(maxcpus, &setsize, NULL); | |
303 | if (!set) | |
304 | err(EXIT_FAILURE, _("failed to callocate cpu set")); | |
305 | ||
aac1e59e KZ |
306 | if (islist) { |
307 | if (cpulist_parse(buf, set, setsize)) | |
308 | errx(EXIT_FAILURE, _("failed to parse CPU list %s"), buf); | |
309 | } else { | |
310 | if (cpumask_parse(buf, set, setsize)) | |
311 | errx(EXIT_FAILURE, _("failed to parse CPU mask %s"), buf); | |
312 | } | |
313 | return set; | |
314 | } | |
315 | ||
316 | static cpu_set_t * | |
317 | path_cpuset(const char *path, ...) | |
318 | { | |
319 | va_list ap; | |
320 | cpu_set_t *set; | |
321 | ||
322 | va_start(ap, path); | |
323 | set = path_cpuparse(0, path, ap); | |
324 | va_end(ap); | |
325 | ||
326 | return set; | |
327 | } | |
328 | ||
329 | static cpu_set_t * | |
330 | path_cpulist(const char *path, ...) | |
331 | { | |
332 | va_list ap; | |
333 | cpu_set_t *set; | |
334 | ||
335 | va_start(ap, path); | |
336 | set = path_cpuparse(1, path, ap); | |
337 | va_end(ap); | |
7e03f383 KZ |
338 | |
339 | return set; | |
5dd7507c CQ |
340 | } |
341 | ||
342 | /* Lookup a pattern and get the value from cpuinfo. | |
343 | * Format is: | |
344 | * | |
345 | * "<pattern> : <key>" | |
346 | */ | |
347 | int lookup(char *line, char *pattern, char **value) | |
348 | { | |
349 | char *p, *v; | |
350 | int len = strlen(pattern); | |
351 | ||
352 | if (!*line) | |
353 | return 0; | |
354 | ||
355 | /* pattern */ | |
356 | if (strncmp(line, pattern, len)) | |
357 | return 0; | |
358 | ||
359 | /* white spaces */ | |
360 | for (p = line + len; isspace(*p); p++); | |
361 | ||
362 | /* separator */ | |
363 | if (*p != ':') | |
364 | return 0; | |
365 | ||
366 | /* white spaces */ | |
367 | for (++p; isspace(*p); p++); | |
368 | ||
369 | /* value */ | |
370 | if (!*p) | |
371 | return 0; | |
372 | v = p; | |
373 | ||
374 | /* end of value */ | |
375 | len = strlen(line) - 1; | |
376 | for (p = line + len; isspace(*(p-1)); p--); | |
377 | *p = '\0'; | |
378 | ||
379 | *value = xstrdup(v); | |
380 | return 1; | |
381 | } | |
382 | ||
f633ad4e KZ |
383 | /* Don't init the mode for platforms where we are not able to |
384 | * detect that CPU supports 64-bit mode. | |
385 | */ | |
386 | static int | |
387 | init_mode(void) | |
388 | { | |
389 | int m = 0; | |
390 | ||
4e740fd8 KZ |
391 | if (sysrootlen) |
392 | /* reading info from any /{sys,proc} dump, don't mix it with | |
393 | * information about our real CPU */ | |
394 | return 0; | |
395 | ||
f633ad4e KZ |
396 | #if defined(__alpha__) || defined(__ia64__) |
397 | m |= MODE_64BIT; /* 64bit platforms only */ | |
398 | #endif | |
399 | /* platforms with 64bit flag in /proc/cpuinfo, define | |
400 | * 32bit default here */ | |
401 | #if defined(__i386__) || defined(__x86_64__) || \ | |
c487c90c | 402 | defined(__s390x__) || defined(__s390__) || defined(__sparc_v9__) |
f633ad4e KZ |
403 | m |= MODE_32BIT; |
404 | #endif | |
405 | return m; | |
406 | } | |
407 | ||
5dd7507c | 408 | static void |
e8aa16ee | 409 | read_basicinfo(struct lscpu_desc *desc) |
5dd7507c | 410 | { |
d50363cd | 411 | FILE *fp = path_fopen("r", 1, _PATH_PROC_CPUINFO); |
5dd7507c CQ |
412 | char buf[BUFSIZ]; |
413 | struct utsname utsbuf; | |
414 | ||
415 | /* architecture */ | |
416 | if (uname(&utsbuf) == -1) | |
417 | err(EXIT_FAILURE, _("error: uname failed")); | |
e8aa16ee | 418 | desc->arch = xstrdup(utsbuf.machine); |
5dd7507c CQ |
419 | |
420 | /* count CPU(s) */ | |
7e03f383 KZ |
421 | while(path_exist(_PATH_SYS_SYSTEM "/cpu/cpu%d", desc->ncpus)) |
422 | desc->ncpus++; | |
5dd7507c CQ |
423 | |
424 | /* details */ | |
425 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
e8aa16ee KZ |
426 | if (lookup(buf, "vendor", &desc->vendor)) ; |
427 | else if (lookup(buf, "vendor_id", &desc->vendor)) ; | |
e8aa16ee KZ |
428 | else if (lookup(buf, "family", &desc->family)) ; |
429 | else if (lookup(buf, "cpu family", &desc->family)) ; | |
430 | else if (lookup(buf, "model", &desc->model)) ; | |
431 | else if (lookup(buf, "stepping", &desc->stepping)) ; | |
432 | else if (lookup(buf, "cpu MHz", &desc->mhz)) ; | |
f633ad4e KZ |
433 | else if (lookup(buf, "flags", &desc->flags)) ; /* x86 */ |
434 | else if (lookup(buf, "features", &desc->flags)) ; /* s390 */ | |
c487c90c | 435 | else if (lookup(buf, "type", &desc->flags)) ; /* sparc64 */ |
9b8d4d5f | 436 | else if (lookup(buf, "bogomips", &desc->bogomips)) ; |
1f5b7d4b HC |
437 | /* S390 */ |
438 | else if (lookup(buf, "bogomips per cpu", &desc->bogomips)) ; | |
5dd7507c CQ |
439 | else |
440 | continue; | |
441 | } | |
c8b64f6d | 442 | |
f633ad4e KZ |
443 | desc->mode = init_mode(); |
444 | ||
e8aa16ee KZ |
445 | if (desc->flags) { |
446 | snprintf(buf, sizeof(buf), " %s ", desc->flags); | |
c8b64f6d | 447 | if (strstr(buf, " svm ")) |
e8aa16ee | 448 | desc->virtflag = strdup("svm"); |
c8b64f6d | 449 | else if (strstr(buf, " vmx ")) |
e8aa16ee | 450 | desc->virtflag = strdup("vmx"); |
79e8b41a | 451 | if (strstr(buf, " lm ")) |
f633ad4e KZ |
452 | desc->mode |= MODE_32BIT | MODE_64BIT; /* x86_64 */ |
453 | if (strstr(buf, " zarch ")) | |
454 | desc->mode |= MODE_32BIT | MODE_64BIT; /* s390x */ | |
c487c90c KZ |
455 | if (strstr(buf, " sun4v ") || strstr(buf, " sun4u ")) |
456 | desc->mode |= MODE_32BIT | MODE_64BIT; /* sparc64 */ | |
c8b64f6d KZ |
457 | } |
458 | ||
5dd7507c | 459 | fclose(fp); |
7e03f383 KZ |
460 | |
461 | if (path_exist(_PATH_SYS_SYSTEM "/cpu/kernel_max")) | |
3d6e5c35 GR |
462 | /* note that kernel_max is maximum index [NR_CPUS-1] */ |
463 | maxcpus = path_getnum(_PATH_SYS_SYSTEM "/cpu/kernel_max") + 1; | |
7e03f383 KZ |
464 | |
465 | else if (!sysrootlen) | |
466 | /* the root is '/' so we are working with data from the current kernel */ | |
467 | maxcpus = get_max_number_of_cpus(); | |
468 | else | |
d0bb6987 | 469 | /* we are reading some /sys snapshot instead of the real /sys, |
7e03f383 KZ |
470 | * let's use any crazy number... */ |
471 | maxcpus = desc->ncpus > 2048 ? desc->ncpus : 2048; | |
aac1e59e KZ |
472 | |
473 | /* get mask for online CPUs */ | |
e282eec2 KZ |
474 | if (path_exist(_PATH_SYS_SYSTEM "/cpu/online")) { |
475 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); | |
5d4ba40d | 476 | desc->online = path_cpulist(_PATH_SYS_SYSTEM "/cpu/online"); |
e282eec2 KZ |
477 | desc->nthreads = CPU_COUNT_S(setsize, desc->online); |
478 | } | |
5dd7507c CQ |
479 | } |
480 | ||
c8b64f6d KZ |
481 | static int |
482 | has_pci_device(int vendor, int device) | |
483 | { | |
484 | FILE *f; | |
485 | int num, fn, ven, dev; | |
486 | int res = 1; | |
487 | ||
d50363cd | 488 | f = path_fopen("r", 0, _PATH_PROC_PCIDEVS); |
c8b64f6d KZ |
489 | if (!f) |
490 | return 0; | |
491 | ||
492 | /* for more details about bus/pci/devices format see | |
493 | * drivers/pci/proc.c in linux kernel | |
494 | */ | |
495 | while(fscanf(f, "%02x%02x\t%04x%04x\t%*[^\n]", | |
496 | &num, &fn, &ven, &dev) == 4) { | |
497 | ||
498 | if (ven == vendor && dev == device) | |
499 | goto found; | |
500 | } | |
501 | ||
502 | res = 0; | |
503 | found: | |
504 | fclose(f); | |
505 | return res; | |
506 | } | |
507 | ||
508 | #if defined(__x86_64__) || defined(__i386__) | |
509 | ||
510 | /* | |
511 | * This CPUID leaf returns the information about the hypervisor. | |
512 | * EAX : maximum input value for CPUID supported by the hypervisor. | |
513 | * EBX, ECX, EDX : Hypervisor vendor ID signature. E.g. VMwareVMware. | |
514 | */ | |
515 | #define HYPERVISOR_INFO_LEAF 0x40000000 | |
516 | ||
517 | static inline void | |
518 | cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, | |
519 | unsigned int *ecx, unsigned int *edx) | |
520 | { | |
c9239f23 MF |
521 | __asm__( |
522 | #if defined(__PIC__) && defined(__i386__) | |
523 | /* x86 PIC cannot clobber ebx -- gcc bitches */ | |
524 | "pushl %%ebx;" | |
525 | "cpuid;" | |
526 | "movl %%ebx, %%esi;" | |
527 | "popl %%ebx;" | |
528 | : "=S" (*ebx), | |
529 | #else | |
530 | "cpuid;" | |
531 | : "=b" (*ebx), | |
532 | #endif | |
533 | "=a" (*eax), | |
c8b64f6d KZ |
534 | "=c" (*ecx), |
535 | "=d" (*edx) | |
bc54770d | 536 | : "1" (op), "c"(0)); |
c8b64f6d KZ |
537 | } |
538 | ||
539 | static void | |
e8aa16ee | 540 | read_hypervisor_cpuid(struct lscpu_desc *desc) |
c8b64f6d KZ |
541 | { |
542 | unsigned int eax = 0, ebx = 0, ecx = 0, edx = 0; | |
543 | char hyper_vendor_id[13]; | |
544 | ||
545 | memset(hyper_vendor_id, 0, sizeof(hyper_vendor_id)); | |
546 | ||
547 | cpuid(HYPERVISOR_INFO_LEAF, &eax, &ebx, &ecx, &edx); | |
548 | memcpy(hyper_vendor_id + 0, &ebx, 4); | |
549 | memcpy(hyper_vendor_id + 4, &ecx, 4); | |
550 | memcpy(hyper_vendor_id + 8, &edx, 4); | |
551 | hyper_vendor_id[12] = '\0'; | |
552 | ||
553 | if (!hyper_vendor_id[0]) | |
554 | return; | |
555 | ||
556 | if (!strncmp("XenVMMXenVMM", hyper_vendor_id, 12)) | |
e8aa16ee | 557 | desc->hyper = HYPER_XEN; |
c8b64f6d | 558 | else if (!strncmp("KVMKVMKVM", hyper_vendor_id, 9)) |
e8aa16ee | 559 | desc->hyper = HYPER_KVM; |
c8b64f6d | 560 | else if (!strncmp("Microsoft Hv", hyper_vendor_id, 12)) |
e8aa16ee | 561 | desc->hyper = HYPER_MSHV; |
99fbc877 SH |
562 | else if (!strncmp("VMwareVMware", hyper_vendor_id, 12)) |
563 | desc->hyper = HYPER_VMWARE; | |
c8b64f6d KZ |
564 | } |
565 | ||
566 | #else /* ! __x86_64__ */ | |
567 | static void | |
e8aa16ee | 568 | read_hypervisor_cpuid(struct lscpu_desc *desc) |
c8b64f6d KZ |
569 | { |
570 | } | |
571 | #endif | |
572 | ||
573 | static void | |
e8aa16ee | 574 | read_hypervisor(struct lscpu_desc *desc) |
c8b64f6d | 575 | { |
e8aa16ee | 576 | read_hypervisor_cpuid(desc); |
c8b64f6d | 577 | |
e8aa16ee | 578 | if (desc->hyper) |
c8b64f6d | 579 | /* hvm */ |
e8aa16ee | 580 | desc->virtype = VIRT_FULL; |
c8b64f6d | 581 | |
d50363cd | 582 | else if (path_exist(_PATH_PROC_XEN)) { |
c8b64f6d | 583 | /* Xen para-virt or dom0 */ |
d50363cd | 584 | FILE *fd = path_fopen("r", 0, _PATH_PROC_XENCAP); |
c8b64f6d KZ |
585 | int dom0 = 0; |
586 | ||
587 | if (fd) { | |
588 | char buf[256]; | |
589 | ||
590 | if (fscanf(fd, "%s", buf) == 1 && | |
591 | !strcmp(buf, "control_d")) | |
592 | dom0 = 1; | |
593 | fclose(fd); | |
594 | } | |
e8aa16ee KZ |
595 | desc->virtype = dom0 ? VIRT_NONE : VIRT_PARA; |
596 | desc->hyper = HYPER_XEN; | |
c8b64f6d KZ |
597 | |
598 | } else if (has_pci_device(0x5853, 0x0001)) { | |
599 | /* Xen full-virt on non-x86_64 */ | |
e8aa16ee KZ |
600 | desc->hyper = HYPER_XEN; |
601 | desc->virtype = VIRT_FULL; | |
c8b64f6d KZ |
602 | } |
603 | } | |
604 | ||
7e03f383 KZ |
605 | /* add @set to the @ary, unnecesary set is deallocated. */ |
606 | static int add_cpuset_to_array(cpu_set_t **ary, int *items, cpu_set_t *set) | |
607 | { | |
608 | int i; | |
609 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); | |
610 | ||
611 | if (!ary) | |
612 | return -1; | |
613 | ||
614 | for (i = 0; i < *items; i++) { | |
615 | if (CPU_EQUAL_S(setsize, set, ary[i])) | |
616 | break; | |
617 | } | |
618 | if (i == *items) { | |
619 | ary[*items] = set; | |
620 | ++*items; | |
621 | return 0; | |
622 | } | |
623 | CPU_FREE(set); | |
624 | return 1; | |
625 | } | |
626 | ||
5dd7507c | 627 | static void |
7e03f383 | 628 | read_topology(struct lscpu_desc *desc, int num) |
5dd7507c | 629 | { |
56baaa4e | 630 | cpu_set_t *thread_siblings, *core_siblings, *book_siblings; |
7e03f383 KZ |
631 | |
632 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/topology/thread_siblings", num)) | |
633 | return; | |
5dd7507c | 634 | |
7e03f383 KZ |
635 | thread_siblings = path_cpuset(_PATH_SYS_CPU |
636 | "/cpu%d/topology/thread_siblings", num); | |
637 | core_siblings = path_cpuset(_PATH_SYS_CPU | |
638 | "/cpu%d/topology/core_siblings", num); | |
56baaa4e HC |
639 | book_siblings = NULL; |
640 | if (path_exist(_PATH_SYS_CPU "/cpu%d/topology/book_siblings", num)) { | |
641 | book_siblings = path_cpuset(_PATH_SYS_CPU | |
642 | "/cpu%d/topology/book_siblings", num); | |
643 | } | |
aac1e59e KZ |
644 | |
645 | if (!desc->coremaps) { | |
56baaa4e | 646 | int nbooks, nsockets, ncores, nthreads; |
7e03f383 KZ |
647 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); |
648 | ||
649 | /* threads within one core */ | |
650 | nthreads = CPU_COUNT_S(setsize, thread_siblings); | |
651 | /* cores within one socket */ | |
652 | ncores = CPU_COUNT_S(setsize, core_siblings) / nthreads; | |
56baaa4e | 653 | /* number of sockets within one book */ |
7e03f383 | 654 | nsockets = desc->ncpus / nthreads / ncores; |
56baaa4e HC |
655 | /* number of books */ |
656 | nbooks = desc->ncpus / nthreads / ncores / nsockets; | |
e282eec2 KZ |
657 | |
658 | /* all threads, see also read_basicinfo() | |
659 | * -- this is fallback for kernels where is not | |
660 | * /sys/devices/system/cpu/online. | |
661 | */ | |
662 | if (!desc->nthreads) | |
663 | desc->nthreads = nsockets * ncores * nthreads; | |
08de16d0 DB |
664 | if (book_siblings) |
665 | desc->bookmaps = xcalloc(nbooks, sizeof(cpu_set_t *)); | |
666 | ||
667 | desc->socketmaps = xcalloc(nsockets, sizeof(cpu_set_t *)); | |
668 | desc->coremaps = xcalloc(ncores * nsockets, sizeof(cpu_set_t *)); | |
7e03f383 | 669 | } |
5dd7507c | 670 | |
7e03f383 KZ |
671 | add_cpuset_to_array(desc->socketmaps, &desc->nsockets, core_siblings); |
672 | add_cpuset_to_array(desc->coremaps, &desc->ncores, thread_siblings); | |
56baaa4e HC |
673 | if (book_siblings) |
674 | add_cpuset_to_array(desc->bookmaps, &desc->nbooks, book_siblings); | |
7e03f383 KZ |
675 | } |
676 | ||
677 | static int | |
678 | cachecmp(const void *a, const void *b) | |
679 | { | |
680 | struct cpu_cache *c1 = (struct cpu_cache *) a; | |
681 | struct cpu_cache *c2 = (struct cpu_cache *) b; | |
682 | ||
683 | return strcmp(c2->name, c1->name); | |
5dd7507c CQ |
684 | } |
685 | ||
686 | static void | |
7e03f383 | 687 | read_cache(struct lscpu_desc *desc, int num) |
5dd7507c CQ |
688 | { |
689 | char buf[256]; | |
7e03f383 | 690 | int i; |
5dd7507c | 691 | |
aac1e59e | 692 | if (!desc->ncaches) { |
7e03f383 KZ |
693 | while(path_exist(_PATH_SYS_SYSTEM "/cpu/cpu%d/cache/index%d", |
694 | num, desc->ncaches)) | |
695 | desc->ncaches++; | |
5dd7507c | 696 | |
7e03f383 KZ |
697 | if (!desc->ncaches) |
698 | return; | |
5dd7507c | 699 | |
08de16d0 | 700 | desc->caches = xcalloc(desc->ncaches, sizeof(*desc->caches)); |
7e03f383 KZ |
701 | } |
702 | for (i = 0; i < desc->ncaches; i++) { | |
703 | struct cpu_cache *ca = &desc->caches[i]; | |
704 | cpu_set_t *map; | |
705 | ||
706 | if (!ca->name) { | |
707 | int type, level; | |
708 | ||
709 | /* cache type */ | |
710 | path_getstr(buf, sizeof(buf), | |
711 | _PATH_SYS_CPU "/cpu%d/cache/index%d/type", | |
712 | num, i); | |
713 | if (!strcmp(buf, "Data")) | |
714 | type = 'd'; | |
715 | else if (!strcmp(buf, "Instruction")) | |
716 | type = 'i'; | |
717 | else | |
718 | type = 0; | |
719 | ||
720 | /* cache level */ | |
721 | level = path_getnum(_PATH_SYS_CPU "/cpu%d/cache/index%d/level", | |
722 | num, i); | |
723 | if (type) | |
724 | snprintf(buf, sizeof(buf), "L%d%c", level, type); | |
725 | else | |
726 | snprintf(buf, sizeof(buf), "L%d", level); | |
727 | ||
728 | ca->name = xstrdup(buf); | |
729 | ||
730 | /* cache size */ | |
731 | path_getstr(buf, sizeof(buf), | |
732 | _PATH_SYS_CPU "/cpu%d/cache/index%d/size", | |
733 | num, i); | |
734 | ca->size = xstrdup(buf); | |
735 | } | |
5dd7507c | 736 | |
7e03f383 KZ |
737 | /* information about how CPUs share different caches */ |
738 | map = path_cpuset(_PATH_SYS_CPU "/cpu%d/cache/index%d/shared_cpu_map", | |
739 | num, i); | |
5dd7507c | 740 | |
08de16d0 DB |
741 | if (!ca->sharedmaps) |
742 | ca->sharedmaps = xcalloc(desc->ncpus, sizeof(cpu_set_t *)); | |
7e03f383 | 743 | add_cpuset_to_array(ca->sharedmaps, &ca->nsharedmaps, map); |
5dd7507c CQ |
744 | } |
745 | } | |
746 | ||
747 | static void | |
e8aa16ee | 748 | read_nodes(struct lscpu_desc *desc) |
5dd7507c CQ |
749 | { |
750 | int i; | |
751 | ||
752 | /* number of NUMA node */ | |
7e03f383 KZ |
753 | while (path_exist(_PATH_SYS_SYSTEM "/node/node%d", desc->nnodes)) |
754 | desc->nnodes++; | |
755 | ||
756 | if (!desc->nnodes) | |
757 | return; | |
5dd7507c | 758 | |
08de16d0 | 759 | desc->nodemaps = xcalloc(desc->nnodes, sizeof(cpu_set_t *)); |
5dd7507c CQ |
760 | |
761 | /* information about how nodes share different CPUs */ | |
7e03f383 KZ |
762 | for (i = 0; i < desc->nnodes; i++) |
763 | desc->nodemaps[i] = path_cpuset( | |
5dd7507c CQ |
764 | _PATH_SYS_SYSTEM "/node/node%d/cpumap", |
765 | i); | |
766 | } | |
767 | ||
5dd7507c | 768 | static void |
477251f8 | 769 | print_parsable_cell(struct lscpu_desc *desc, int i, int col, int compatible) |
5dd7507c | 770 | { |
477251f8 | 771 | int j; |
7e03f383 | 772 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); |
5dd7507c | 773 | |
477251f8 KZ |
774 | switch (col) { |
775 | case COL_CPU: | |
5dd7507c | 776 | printf("%d", i); |
477251f8 KZ |
777 | break; |
778 | case COL_CORE: | |
7e03f383 KZ |
779 | for (j = 0; j < desc->ncores; j++) { |
780 | if (CPU_ISSET_S(i, setsize, desc->coremaps[j])) { | |
477251f8 | 781 | printf("%d", j); |
7e03f383 KZ |
782 | break; |
783 | } | |
784 | } | |
477251f8 KZ |
785 | break; |
786 | case COL_SOCKET: | |
7e03f383 KZ |
787 | for (j = 0; j < desc->nsockets; j++) { |
788 | if (CPU_ISSET_S(i, setsize, desc->socketmaps[j])) { | |
477251f8 | 789 | printf("%d", j); |
7e03f383 KZ |
790 | break; |
791 | } | |
792 | } | |
477251f8 KZ |
793 | break; |
794 | case COL_NODE: | |
7e03f383 KZ |
795 | for (j = 0; j < desc->nnodes; j++) { |
796 | if (CPU_ISSET_S(i, setsize, desc->nodemaps[j])) { | |
477251f8 | 797 | printf("%d", j); |
7e03f383 | 798 | break; |
5dd7507c | 799 | } |
7e03f383 | 800 | } |
477251f8 KZ |
801 | break; |
802 | case COL_BOOK: | |
56baaa4e HC |
803 | for (j = 0; j < desc->nbooks; j++) { |
804 | if (CPU_ISSET_S(i, setsize, desc->bookmaps[j])) { | |
477251f8 | 805 | printf("%d", j); |
56baaa4e HC |
806 | break; |
807 | } | |
808 | } | |
477251f8 KZ |
809 | break; |
810 | case COL_CACHE: | |
7e03f383 KZ |
811 | for (j = desc->ncaches - 1; j >= 0; j--) { |
812 | struct cpu_cache *ca = &desc->caches[j]; | |
813 | int x; | |
5dd7507c | 814 | |
7e03f383 KZ |
815 | for (x = 0; x < ca->nsharedmaps; x++) { |
816 | if (CPU_ISSET_S(i, setsize, ca->sharedmaps[x])) { | |
477251f8 KZ |
817 | if (j != desc->ncaches - 1) |
818 | putchar(compatible ? ',' : ':'); | |
819 | printf("%d", x); | |
7e03f383 KZ |
820 | break; |
821 | } | |
5dd7507c | 822 | } |
7e03f383 KZ |
823 | if (x == ca->nsharedmaps) |
824 | putchar(','); | |
5dd7507c | 825 | } |
477251f8 KZ |
826 | break; |
827 | } | |
828 | } | |
829 | ||
830 | /* | |
831 | * We support two formats: | |
832 | * | |
833 | * 1) "compatible" -- this format is compatible with the original lscpu(1) | |
834 | * output and it contains fixed set of the columns. The CACHE columns are at | |
835 | * the end of the line and the CACHE is not printed if the number of the caches | |
836 | * is zero. The CACHE columns are separated by two commas, for example: | |
837 | * | |
838 | * $ lscpu --parse | |
839 | * # CPU,Core,Socket,Node,,L1d,L1i,L2 | |
840 | * 0,0,0,0,,0,0,0 | |
841 | * 1,1,0,0,,1,1,0 | |
842 | * | |
843 | * 2) "user defined output" -- this format prints always all columns without | |
844 | * special prefix for CACHE column. If there are not CACHEs then the column is | |
845 | * empty and the header "Cache" is printed rather than a real name of the cache. | |
846 | * The CACHE columns are separated by ':'. | |
847 | * | |
848 | * $ lscpu --parse=CPU,CORE,SOCKET,NODE,CACHE | |
849 | * # CPU,Core,Socket,Node,L1d:L1i:L2 | |
850 | * 0,0,0,0,0:0:0 | |
851 | * 1,1,0,0,1:1:0 | |
852 | */ | |
853 | static void | |
854 | print_parsable(struct lscpu_desc *desc, int cols[], int ncols, int compatible) | |
855 | { | |
856 | int i, c; | |
857 | ||
858 | printf(_( | |
859 | "# The following is the parsable format, which can be fed to other\n" | |
860 | "# programs. Each different item in every column has an unique ID\n" | |
861 | "# starting from zero.\n")); | |
862 | ||
863 | fputs("# ", stdout); | |
864 | for (i = 0; i < ncols; i++) { | |
865 | if (cols[i] == COL_CACHE) { | |
866 | if (compatible && !desc->ncaches) | |
867 | continue; | |
868 | if (i > 0) | |
869 | putchar(','); | |
870 | if (compatible && i != 0) | |
871 | putchar(','); | |
872 | for (c = desc->ncaches - 1; c >= 0; c--) { | |
873 | printf("%s", desc->caches[c].name); | |
874 | if (c > 0) | |
875 | putchar(compatible ? ',' : ':'); | |
876 | } | |
877 | if (!desc->ncaches) | |
878 | fputs(colnames[cols[i]], stdout); | |
879 | } else { | |
880 | if (i > 0) | |
881 | putchar(','); | |
882 | fputs(colnames[cols[i]], stdout); | |
883 | } | |
884 | } | |
885 | putchar('\n'); | |
886 | ||
887 | for (i = 0; i < desc->ncpus; i++) { | |
888 | if (desc->online && !is_cpu_online(desc, i)) | |
889 | continue; | |
890 | for (c = 0; c < ncols; c++) { | |
891 | if (compatible && cols[c] == COL_CACHE) { | |
892 | if (!desc->ncaches) | |
893 | continue; | |
894 | if (c > 0) | |
895 | putchar(','); | |
896 | } | |
897 | if (c > 0) | |
898 | putchar(','); | |
899 | print_parsable_cell(desc, i, cols[c], compatible); | |
900 | } | |
5dd7507c CQ |
901 | putchar('\n'); |
902 | } | |
903 | } | |
904 | ||
905 | ||
906 | /* output formats "<key> <value>"*/ | |
907 | #define print_s(_key, _val) printf("%-23s%s\n", _key, _val) | |
908 | #define print_n(_key, _val) printf("%-23s%d\n", _key, _val) | |
909 | ||
910 | static void | |
4f912c6a KZ |
911 | print_cpuset(const char *key, cpu_set_t *set, int hex) |
912 | { | |
913 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); | |
914 | size_t setbuflen = 7 * maxcpus; | |
915 | char setbuf[setbuflen], *p; | |
916 | ||
917 | if (hex) { | |
918 | p = cpumask_create(setbuf, setbuflen, set, setsize); | |
919 | printf("%-23s0x%s\n", key, p); | |
920 | } else { | |
921 | p = cpulist_create(setbuf, setbuflen, set, setsize); | |
922 | print_s(key, p); | |
923 | } | |
924 | ||
925 | } | |
926 | ||
927 | static void | |
928 | print_readable(struct lscpu_desc *desc, int hex) | |
5dd7507c | 929 | { |
7e03f383 KZ |
930 | char buf[512]; |
931 | int i; | |
aac1e59e | 932 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); |
7e03f383 | 933 | |
e6b0611b | 934 | print_s(_("Architecture:"), desc->arch); |
79e8b41a | 935 | |
f633ad4e | 936 | if (desc->mode) { |
79e8b41a KZ |
937 | char buf[64], *p = buf; |
938 | ||
f633ad4e | 939 | if (desc->mode & MODE_32BIT) { |
79e8b41a KZ |
940 | strcpy(p, "32-bit, "); |
941 | p += 8; | |
942 | } | |
f633ad4e | 943 | if (desc->mode & MODE_64BIT) { |
79e8b41a KZ |
944 | strcpy(p, "64-bit, "); |
945 | p += 8; | |
946 | } | |
947 | *(p - 2) = '\0'; | |
948 | print_s(_("CPU op-mode(s):"), buf); | |
949 | } | |
aabe2441 | 950 | #if !defined(WORDS_BIGENDIAN) |
9b8d4d5f DB |
951 | print_s(_("Byte Order:"), "Little Endian"); |
952 | #else | |
953 | print_s(_("Byte Order:"), "Big Endian"); | |
9b8d4d5f | 954 | #endif |
4a939e04 | 955 | print_n(_("CPU(s):"), desc->ncpus); |
4f912c6a | 956 | |
5d4ba40d KZ |
957 | if (desc->online) |
958 | print_cpuset(hex ? _("On-line CPU(s) mask:") : | |
959 | _("On-line CPU(s) list:"), | |
960 | desc->online, hex); | |
4f912c6a | 961 | |
5d4ba40d | 962 | if (desc->online && CPU_COUNT_S(setsize, desc->online) != desc->ncpus) { |
4f912c6a KZ |
963 | cpu_set_t *set; |
964 | ||
965 | /* Linux kernel provides cpuset of off-line CPUs that contains | |
966 | * all configured CPUs (see /sys/devices/system/cpu/offline), | |
967 | * but want to print real (present in system) off-line CPUs only. | |
968 | */ | |
969 | set = cpuset_alloc(maxcpus, NULL, NULL); | |
970 | if (!set) | |
971 | err(EXIT_FAILURE, _("failed to callocate cpu set")); | |
972 | CPU_ZERO_S(setsize, set); | |
973 | for (i = 0; i < desc->ncpus; i++) { | |
974 | if (!is_cpu_online(desc, i)) | |
975 | CPU_SET_S(i, setsize, set); | |
976 | } | |
977 | print_cpuset(hex ? _("Off-line CPU(s) mask:") : | |
978 | _("Off-line CPU(s) list:"), | |
979 | set, hex); | |
980 | cpuset_free(set); | |
981 | } | |
5dd7507c | 982 | |
7e03f383 KZ |
983 | if (desc->nsockets) { |
984 | print_n(_("Thread(s) per core:"), desc->nthreads / desc->ncores); | |
985 | print_n(_("Core(s) per socket:"), desc->ncores / desc->nsockets); | |
56baaa4e HC |
986 | if (desc->nbooks) { |
987 | print_n(_("Socket(s) per book:"), desc->nsockets / desc->nbooks); | |
988 | print_n(_("Book(s):"), desc->nbooks); | |
989 | } else { | |
990 | print_n(_("Socket(s):"), desc->nsockets); | |
991 | } | |
5dd7507c | 992 | } |
7e03f383 KZ |
993 | if (desc->nnodes) |
994 | print_n(_("NUMA node(s):"), desc->nnodes); | |
e8aa16ee KZ |
995 | if (desc->vendor) |
996 | print_s(_("Vendor ID:"), desc->vendor); | |
997 | if (desc->family) | |
998 | print_s(_("CPU family:"), desc->family); | |
999 | if (desc->model) | |
1000 | print_s(_("Model:"), desc->model); | |
1001 | if (desc->stepping) | |
1002 | print_s(_("Stepping:"), desc->stepping); | |
1003 | if (desc->mhz) | |
1004 | print_s(_("CPU MHz:"), desc->mhz); | |
9b8d4d5f DB |
1005 | if (desc->bogomips) |
1006 | print_s(_("BogoMIPS:"), desc->bogomips); | |
e8aa16ee KZ |
1007 | if (desc->virtflag) { |
1008 | if (!strcmp(desc->virtflag, "svm")) | |
5dd7507c | 1009 | print_s(_("Virtualization:"), "AMD-V"); |
e8aa16ee | 1010 | else if (!strcmp(desc->virtflag, "vmx")) |
5dd7507c CQ |
1011 | print_s(_("Virtualization:"), "VT-x"); |
1012 | } | |
e8aa16ee KZ |
1013 | if (desc->hyper) { |
1014 | print_s(_("Hypervisor vendor:"), hv_vendors[desc->hyper]); | |
1015 | print_s(_("Virtualization type:"), virt_types[desc->virtype]); | |
c8b64f6d | 1016 | } |
7e03f383 | 1017 | if (desc->ncaches) { |
c8b64f6d | 1018 | char buf[512]; |
5dd7507c CQ |
1019 | int i; |
1020 | ||
7e03f383 | 1021 | for (i = desc->ncaches - 1; i >= 0; i--) { |
5dd7507c | 1022 | snprintf(buf, sizeof(buf), |
7e03f383 KZ |
1023 | _("%s cache:"), desc->caches[i].name); |
1024 | print_s(buf, desc->caches[i].size); | |
1025 | } | |
1026 | } | |
1027 | ||
4f912c6a KZ |
1028 | for (i = 0; i < desc->nnodes; i++) { |
1029 | snprintf(buf, sizeof(buf), _("NUMA node%d CPU(s):"), i); | |
1030 | print_cpuset(buf, desc->nodemaps[i], hex); | |
5dd7507c CQ |
1031 | } |
1032 | } | |
1033 | ||
39561c70 | 1034 | static void __attribute__((__noreturn__)) usage(FILE *out) |
5dd7507c | 1035 | { |
e8ab5ce3 BS |
1036 | fprintf(out, _( |
1037 | "\nUsage:\n" | |
1038 | " %s [options]\n"), program_invocation_short_name); | |
1039 | ||
1040 | puts(_( "\nOptions:\n" | |
1041 | " -h, --help print this help\n" | |
477251f8 | 1042 | " -p, --parse[=LIST] print out a parsable instead of a readable format\n" |
e8ab5ce3 BS |
1043 | " -s, --sysroot DIR use directory DIR as system root\n" |
1044 | " -x, --hex print hexadecimal masks rather than lists of CPUs\n")); | |
4f912c6a | 1045 | |
39561c70 | 1046 | exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); |
5dd7507c CQ |
1047 | } |
1048 | ||
1049 | int main(int argc, char *argv[]) | |
1050 | { | |
e8aa16ee | 1051 | struct lscpu_desc _desc, *desc = &_desc; |
4f912c6a | 1052 | int parsable = 0, c, i, hex = 0; |
477251f8 KZ |
1053 | int columns[ARRAY_SIZE(colnames)], ncolumns = 0; |
1054 | int compatible = 0; | |
5dd7507c | 1055 | |
6c7d5ae9 | 1056 | static const struct option longopts[] = { |
47b6e8b6 | 1057 | { "help", no_argument, 0, 'h' }, |
477251f8 | 1058 | { "parse", optional_argument, 0, 'p' }, |
47b6e8b6 | 1059 | { "sysroot", required_argument, 0, 's' }, |
4f912c6a | 1060 | { "hex", no_argument, 0, 'x' }, |
5dd7507c CQ |
1061 | { NULL, 0, 0, 0 } |
1062 | }; | |
1063 | ||
2f8f1388 | 1064 | setlocale(LC_ALL, ""); |
5dd7507c CQ |
1065 | bindtextdomain(PACKAGE, LOCALEDIR); |
1066 | textdomain(PACKAGE); | |
1067 | ||
477251f8 | 1068 | while ((c = getopt_long(argc, argv, "hp::s:x", longopts, NULL)) != -1) { |
5dd7507c CQ |
1069 | switch (c) { |
1070 | case 'h': | |
39561c70 | 1071 | usage(stdout); |
5dd7507c CQ |
1072 | case 'p': |
1073 | parsable = 1; | |
477251f8 KZ |
1074 | if (optarg) { |
1075 | if (*optarg == '=') | |
1076 | optarg++; | |
1077 | ncolumns = string_to_idarray(optarg, | |
1078 | columns, ARRAY_SIZE(columns), | |
1079 | column_name_to_id); | |
1080 | if (ncolumns < 0) | |
1081 | return EXIT_FAILURE; | |
1082 | } else { | |
1083 | columns[ncolumns++] = COL_CPU; | |
1084 | columns[ncolumns++] = COL_CORE; | |
1085 | columns[ncolumns++] = COL_SOCKET, | |
1086 | columns[ncolumns++] = COL_NODE, | |
1087 | columns[ncolumns++] = COL_CACHE; | |
1088 | compatible = 1; | |
1089 | } | |
5dd7507c | 1090 | break; |
47b6e8b6 | 1091 | case 's': |
d50363cd | 1092 | sysrootlen = strlen(optarg); |
47b6e8b6 | 1093 | strncpy(pathbuf, optarg, sizeof(pathbuf)); |
d50363cd | 1094 | pathbuf[sizeof(pathbuf) - 1] = '\0'; |
47b6e8b6 | 1095 | break; |
4f912c6a KZ |
1096 | case 'x': |
1097 | hex = 1; | |
1098 | break; | |
5dd7507c | 1099 | default: |
39561c70 | 1100 | usage(stderr); |
5dd7507c CQ |
1101 | } |
1102 | } | |
1103 | ||
e8aa16ee | 1104 | memset(desc, 0, sizeof(*desc)); |
5dd7507c | 1105 | |
e8aa16ee | 1106 | read_basicinfo(desc); |
5dd7507c | 1107 | |
7e03f383 | 1108 | for (i = 0; i < desc->ncpus; i++) { |
5d4ba40d | 1109 | if (desc->online && !is_cpu_online(desc, i)) |
aac1e59e | 1110 | continue; |
7e03f383 KZ |
1111 | read_topology(desc, i); |
1112 | read_cache(desc, i); | |
47b6e8b6 | 1113 | } |
7e03f383 KZ |
1114 | |
1115 | qsort(desc->caches, desc->ncaches, sizeof(struct cpu_cache), cachecmp); | |
1116 | ||
1117 | read_nodes(desc); | |
5dd7507c | 1118 | |
e8aa16ee | 1119 | read_hypervisor(desc); |
c8b64f6d | 1120 | |
5dd7507c CQ |
1121 | /* Show time! */ |
1122 | if (parsable) | |
477251f8 | 1123 | print_parsable(desc, columns, ncolumns, compatible); |
5dd7507c | 1124 | else |
4f912c6a | 1125 | print_readable(desc, hex); |
5dd7507c | 1126 | |
cf474aac | 1127 | return EXIT_SUCCESS; |
5dd7507c | 1128 | } |