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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" | |
ba45d8c1 | 42 | #include "tt.h" |
477251f8 | 43 | |
5dd7507c CQ |
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" | |
b8ec7bdf | 53 | #define _PATH_PROC_SYSINFO "/proc/sysinfo" |
5dd7507c | 54 | |
c8b64f6d KZ |
55 | /* virtualization types */ |
56 | enum { | |
57 | VIRT_NONE = 0, | |
58 | VIRT_PARA, | |
59 | VIRT_FULL | |
60 | }; | |
61 | const char *virt_types[] = { | |
62 | [VIRT_NONE] = N_("none"), | |
63 | [VIRT_PARA] = N_("para"), | |
64 | [VIRT_FULL] = N_("full") | |
65 | }; | |
66 | ||
67 | /* hypervisor vendors */ | |
68 | enum { | |
69 | HYPER_NONE = 0, | |
70 | HYPER_XEN, | |
71 | HYPER_KVM, | |
99fbc877 | 72 | HYPER_MSHV, |
b8ec7bdf HC |
73 | HYPER_VMWARE, |
74 | HYPER_IBM | |
c8b64f6d KZ |
75 | }; |
76 | const char *hv_vendors[] = { | |
77 | [HYPER_NONE] = NULL, | |
78 | [HYPER_XEN] = "Xen", | |
79 | [HYPER_KVM] = "KVM", | |
99fbc877 | 80 | [HYPER_MSHV] = "Microsoft", |
b8ec7bdf HC |
81 | [HYPER_VMWARE] = "VMware", |
82 | [HYPER_IBM] = "IBM" | |
c8b64f6d KZ |
83 | }; |
84 | ||
f633ad4e | 85 | /* CPU modes */ |
79e8b41a | 86 | enum { |
f633ad4e KZ |
87 | MODE_32BIT = (1 << 1), |
88 | MODE_64BIT = (1 << 2) | |
79e8b41a | 89 | }; |
c8b64f6d | 90 | |
e8aa16ee KZ |
91 | /* cache(s) description */ |
92 | struct cpu_cache { | |
7e03f383 KZ |
93 | char *name; |
94 | char *size; | |
95 | ||
96 | int nsharedmaps; | |
97 | cpu_set_t **sharedmaps; | |
e8aa16ee KZ |
98 | }; |
99 | ||
a0fff77e HC |
100 | /* dispatching modes */ |
101 | enum { | |
102 | DISP_HORIZONTAL = 0, | |
103 | DISP_VERTICAL = 1 | |
104 | }; | |
105 | ||
106 | const char *disp_modes[] = { | |
107 | [DISP_HORIZONTAL] = N_("horizontal"), | |
108 | [DISP_VERTICAL] = N_("vertical") | |
109 | }; | |
110 | ||
2b8fcb81 HC |
111 | /* cpu polarization */ |
112 | enum { | |
113 | POLAR_UNKNOWN = 0, | |
114 | POLAR_VLOW, | |
115 | POLAR_VMEDIUM, | |
116 | POLAR_VHIGH, | |
117 | POLAR_HORIZONTAL | |
118 | }; | |
119 | ||
8005924a KZ |
120 | struct polarization_modes { |
121 | char *parsable; | |
122 | char *readable; | |
123 | }; | |
124 | ||
125 | struct polarization_modes polar_modes[] = { | |
126 | [POLAR_UNKNOWN] = {"U", "-"}, | |
127 | [POLAR_VLOW] = {"VL", "vert-low"}, | |
128 | [POLAR_VMEDIUM] = {"VM", "vert-medium"}, | |
129 | [POLAR_VHIGH] = {"VH", "vert-high"}, | |
130 | [POLAR_HORIZONTAL] = {"H", "horizontal"}, | |
2b8fcb81 HC |
131 | }; |
132 | ||
e8aa16ee KZ |
133 | /* global description */ |
134 | struct lscpu_desc { | |
5dd7507c CQ |
135 | char *arch; |
136 | char *vendor; | |
137 | char *family; | |
138 | char *model; | |
c8b64f6d KZ |
139 | char *virtflag; /* virtualization flag (vmx, svm) */ |
140 | int hyper; /* hypervisor vendor ID */ | |
141 | int virtype; /* VIRT_PARA|FULL|NONE ? */ | |
5dd7507c CQ |
142 | char *mhz; |
143 | char *stepping; | |
9b8d4d5f | 144 | char *bogomips; |
5dd7507c | 145 | char *flags; |
a0fff77e | 146 | int dispatching; /* none, horizontal or vertical */ |
79e8b41a KZ |
147 | int mode; /* rm, lm or/and tm */ |
148 | ||
7e03f383 | 149 | int ncpus; /* number of CPUs */ |
aac1e59e | 150 | cpu_set_t *online; /* mask with online CPUs */ |
7e03f383 KZ |
151 | |
152 | int nnodes; /* number of NUMA modes */ | |
153 | cpu_set_t **nodemaps; /* array with NUMA nodes */ | |
154 | ||
56baaa4e HC |
155 | /* books -- based on book_siblings (internal kernel map of cpuX's |
156 | * hardware threads within the same book */ | |
157 | int nbooks; /* number of all online books */ | |
158 | cpu_set_t **bookmaps; /* unique book_siblings */ | |
159 | ||
7e03f383 KZ |
160 | /* sockets -- based on core_siblings (internal kernel map of cpuX's |
161 | * hardware threads within the same physical_package_id (socket)) */ | |
e282eec2 | 162 | int nsockets; /* number of all online sockets */ |
7e03f383 KZ |
163 | cpu_set_t **socketmaps; /* unique core_siblings */ |
164 | ||
165 | /* cores -- based on thread_siblings (internel kernel map of cpuX's | |
166 | * hardware threads within the same core as cpuX) */ | |
e282eec2 | 167 | int ncores; /* number of all online cores */ |
7e03f383 KZ |
168 | cpu_set_t **coremaps; /* unique thread_siblings */ |
169 | ||
e282eec2 | 170 | int nthreads; /* number of online threads */ |
7e03f383 KZ |
171 | |
172 | int ncaches; | |
173 | struct cpu_cache *caches; | |
2b8fcb81 HC |
174 | |
175 | int *polarization; /* cpu polarization */ | |
596b8845 | 176 | int *addresses; /* physical cpu addresses */ |
d231eea1 | 177 | int *configured; /* cpu configured */ |
5dd7507c CQ |
178 | }; |
179 | ||
8005924a KZ |
180 | enum { |
181 | OUTPUT_SUMMARY = 0, /* default */ | |
182 | OUTPUT_PARSABLE, /* -p */ | |
ba45d8c1 | 183 | OUTPUT_READABLE, /* -e */ |
8005924a KZ |
184 | }; |
185 | ||
186 | struct lscpu_modifier { | |
a7e5300c HC |
187 | int mode; /* OUTPUT_* */ |
188 | unsigned int hex:1, /* print CPU masks rather than CPU lists */ | |
189 | compat:1, /* use backwardly compatible format */ | |
190 | allcpus:1; /* print all CPUs */ | |
8005924a KZ |
191 | }; |
192 | ||
d50363cd KZ |
193 | static size_t sysrootlen; |
194 | static char pathbuf[PATH_MAX]; | |
7e03f383 | 195 | static int maxcpus; /* size in bits of kernel cpu mask */ |
5dd7507c | 196 | |
aac1e59e KZ |
197 | #define is_cpu_online(_d, _cpu) \ |
198 | ((_d) && (_d)->online ? \ | |
199 | CPU_ISSET_S((_cpu), CPU_ALLOC_SIZE(maxcpus), (_d)->online) : 0) | |
200 | ||
d50363cd KZ |
201 | static FILE *path_fopen(const char *mode, int exit_on_err, const char *path, ...) |
202 | __attribute__ ((__format__ (__printf__, 3, 4))); | |
ef173bde KZ |
203 | static void path_getstr(char *result, size_t len, const char *path, ...) |
204 | __attribute__ ((__format__ (__printf__, 3, 4))); | |
205 | static int path_getnum(const char *path, ...) | |
206 | __attribute__ ((__format__ (__printf__, 1, 2))); | |
5dd7507c CQ |
207 | static int path_exist(const char *path, ...) |
208 | __attribute__ ((__format__ (__printf__, 1, 2))); | |
7e03f383 | 209 | static cpu_set_t *path_cpuset(const char *path, ...) |
5dd7507c CQ |
210 | __attribute__ ((__format__ (__printf__, 1, 2))); |
211 | ||
477251f8 KZ |
212 | /* |
213 | * Parsable output | |
214 | */ | |
215 | enum { | |
216 | COL_CPU, | |
217 | COL_CORE, | |
218 | COL_SOCKET, | |
219 | COL_NODE, | |
220 | COL_BOOK, | |
2b8fcb81 | 221 | COL_CACHE, |
596b8845 | 222 | COL_POLARIZATION, |
d231eea1 HC |
223 | COL_ADDRESS, |
224 | COL_CONFIGURED, | |
a7e5300c | 225 | COL_ONLINE, |
477251f8 KZ |
226 | }; |
227 | ||
228 | static const char *colnames[] = | |
229 | { | |
230 | [COL_CPU] = "CPU", | |
231 | [COL_CORE] = "Core", | |
232 | [COL_SOCKET] = "Socket", | |
233 | [COL_NODE] = "Node", | |
234 | [COL_BOOK] = "Book", | |
2b8fcb81 | 235 | [COL_CACHE] = "Cache", |
596b8845 | 236 | [COL_POLARIZATION] = "Polarization", |
d231eea1 HC |
237 | [COL_ADDRESS] = "Address", |
238 | [COL_CONFIGURED] = "Configured", | |
a7e5300c | 239 | [COL_ONLINE] = "Online", |
477251f8 KZ |
240 | }; |
241 | ||
242 | ||
243 | static int column_name_to_id(const char *name, size_t namesz) | |
244 | { | |
329fd1c3 | 245 | size_t i; |
477251f8 KZ |
246 | |
247 | for (i = 0; i < ARRAY_SIZE(colnames); i++) { | |
248 | const char *cn = colnames[i]; | |
249 | ||
250 | if (!strncasecmp(name, cn, namesz) && !*(cn + namesz)) | |
251 | return i; | |
252 | } | |
253 | warnx(_("unknown column: %s"), name); | |
254 | return -1; | |
255 | } | |
256 | ||
d50363cd KZ |
257 | static const char * |
258 | path_vcreate(const char *path, va_list ap) | |
259 | { | |
260 | if (sysrootlen) | |
261 | vsnprintf(pathbuf + sysrootlen, | |
262 | sizeof(pathbuf) - sysrootlen, path, ap); | |
263 | else | |
264 | vsnprintf(pathbuf, sizeof(pathbuf), path, ap); | |
265 | return pathbuf; | |
266 | } | |
267 | ||
5dd7507c | 268 | static FILE * |
d50363cd | 269 | path_vfopen(const char *mode, int exit_on_error, const char *path, va_list ap) |
5dd7507c | 270 | { |
d50363cd KZ |
271 | FILE *f; |
272 | const char *p = path_vcreate(path, ap); | |
273 | ||
274 | f = fopen(p, mode); | |
275 | if (!f && exit_on_error) | |
276 | err(EXIT_FAILURE, _("error: cannot open %s"), p); | |
277 | return f; | |
5dd7507c CQ |
278 | } |
279 | ||
280 | static FILE * | |
d50363cd | 281 | path_fopen(const char *mode, int exit_on_error, const char *path, ...) |
5dd7507c | 282 | { |
d50363cd KZ |
283 | FILE *fd; |
284 | va_list ap; | |
285 | ||
286 | va_start(ap, path); | |
fe81c7d1 | 287 | fd = path_vfopen(mode, exit_on_error, path, ap); |
d50363cd KZ |
288 | va_end(ap); |
289 | ||
290 | return fd; | |
5dd7507c CQ |
291 | } |
292 | ||
293 | static void | |
ef173bde KZ |
294 | path_getstr(char *result, size_t len, const char *path, ...) |
295 | { | |
296 | FILE *fd; | |
297 | va_list ap; | |
298 | ||
299 | va_start(ap, path); | |
d50363cd | 300 | fd = path_vfopen("r", 1, path, ap); |
ef173bde KZ |
301 | va_end(ap); |
302 | ||
303 | if (!fgets(result, len, fd)) | |
304 | err(EXIT_FAILURE, _("failed to read: %s"), pathbuf); | |
305 | fclose(fd); | |
306 | ||
307 | len = strlen(result); | |
308 | if (result[len - 1] == '\n') | |
309 | result[len - 1] = '\0'; | |
310 | } | |
311 | ||
312 | static int | |
313 | path_getnum(const char *path, ...) | |
5dd7507c CQ |
314 | { |
315 | FILE *fd; | |
316 | va_list ap; | |
ef173bde | 317 | int result; |
5dd7507c CQ |
318 | |
319 | va_start(ap, path); | |
d50363cd | 320 | fd = path_vfopen("r", 1, path, ap); |
5dd7507c CQ |
321 | va_end(ap); |
322 | ||
ef173bde | 323 | if (fscanf(fd, "%d", &result) != 1) { |
5dd7507c | 324 | if (ferror(fd)) |
d50363cd | 325 | err(EXIT_FAILURE, _("failed to read: %s"), pathbuf); |
5dd7507c | 326 | else |
d50363cd | 327 | errx(EXIT_FAILURE, _("parse error: %s"), pathbuf); |
5dd7507c CQ |
328 | } |
329 | fclose(fd); | |
ef173bde | 330 | return result; |
5dd7507c CQ |
331 | } |
332 | ||
333 | static int | |
334 | path_exist(const char *path, ...) | |
335 | { | |
336 | va_list ap; | |
d50363cd | 337 | const char *p; |
5dd7507c CQ |
338 | |
339 | va_start(ap, path); | |
d50363cd | 340 | p = path_vcreate(path, ap); |
5dd7507c CQ |
341 | va_end(ap); |
342 | ||
d50363cd | 343 | return access(p, F_OK) == 0; |
5dd7507c CQ |
344 | } |
345 | ||
7e03f383 | 346 | static cpu_set_t * |
aac1e59e | 347 | path_cpuparse(int islist, const char *path, va_list ap) |
5dd7507c | 348 | { |
7e03f383 | 349 | FILE *fd; |
7e03f383 KZ |
350 | cpu_set_t *set; |
351 | size_t setsize, len = maxcpus * 7; | |
352 | char buf[len]; | |
5dd7507c | 353 | |
7e03f383 | 354 | fd = path_vfopen("r", 1, path, ap); |
5dd7507c | 355 | |
7e03f383 KZ |
356 | if (!fgets(buf, len, fd)) |
357 | err(EXIT_FAILURE, _("failed to read: %s"), pathbuf); | |
358 | fclose(fd); | |
5dd7507c | 359 | |
7e03f383 KZ |
360 | len = strlen(buf); |
361 | if (buf[len - 1] == '\n') | |
362 | buf[len - 1] = '\0'; | |
363 | ||
364 | set = cpuset_alloc(maxcpus, &setsize, NULL); | |
365 | if (!set) | |
366 | err(EXIT_FAILURE, _("failed to callocate cpu set")); | |
367 | ||
aac1e59e | 368 | if (islist) { |
b16f615a | 369 | if (cpulist_parse(buf, set, setsize, 0)) |
aac1e59e KZ |
370 | errx(EXIT_FAILURE, _("failed to parse CPU list %s"), buf); |
371 | } else { | |
372 | if (cpumask_parse(buf, set, setsize)) | |
373 | errx(EXIT_FAILURE, _("failed to parse CPU mask %s"), buf); | |
374 | } | |
375 | return set; | |
376 | } | |
377 | ||
378 | static cpu_set_t * | |
379 | path_cpuset(const char *path, ...) | |
380 | { | |
381 | va_list ap; | |
382 | cpu_set_t *set; | |
383 | ||
384 | va_start(ap, path); | |
385 | set = path_cpuparse(0, path, ap); | |
386 | va_end(ap); | |
387 | ||
388 | return set; | |
389 | } | |
390 | ||
391 | static cpu_set_t * | |
392 | path_cpulist(const char *path, ...) | |
393 | { | |
394 | va_list ap; | |
395 | cpu_set_t *set; | |
396 | ||
397 | va_start(ap, path); | |
398 | set = path_cpuparse(1, path, ap); | |
399 | va_end(ap); | |
7e03f383 KZ |
400 | |
401 | return set; | |
5dd7507c CQ |
402 | } |
403 | ||
404 | /* Lookup a pattern and get the value from cpuinfo. | |
405 | * Format is: | |
406 | * | |
407 | * "<pattern> : <key>" | |
408 | */ | |
409 | int lookup(char *line, char *pattern, char **value) | |
410 | { | |
411 | char *p, *v; | |
412 | int len = strlen(pattern); | |
413 | ||
414 | if (!*line) | |
415 | return 0; | |
416 | ||
417 | /* pattern */ | |
418 | if (strncmp(line, pattern, len)) | |
419 | return 0; | |
420 | ||
421 | /* white spaces */ | |
422 | for (p = line + len; isspace(*p); p++); | |
423 | ||
424 | /* separator */ | |
425 | if (*p != ':') | |
426 | return 0; | |
427 | ||
428 | /* white spaces */ | |
429 | for (++p; isspace(*p); p++); | |
430 | ||
431 | /* value */ | |
432 | if (!*p) | |
433 | return 0; | |
434 | v = p; | |
435 | ||
436 | /* end of value */ | |
437 | len = strlen(line) - 1; | |
438 | for (p = line + len; isspace(*(p-1)); p--); | |
439 | *p = '\0'; | |
440 | ||
441 | *value = xstrdup(v); | |
442 | return 1; | |
443 | } | |
444 | ||
f633ad4e KZ |
445 | /* Don't init the mode for platforms where we are not able to |
446 | * detect that CPU supports 64-bit mode. | |
447 | */ | |
448 | static int | |
449 | init_mode(void) | |
450 | { | |
451 | int m = 0; | |
452 | ||
4e740fd8 KZ |
453 | if (sysrootlen) |
454 | /* reading info from any /{sys,proc} dump, don't mix it with | |
455 | * information about our real CPU */ | |
456 | return 0; | |
457 | ||
f633ad4e KZ |
458 | #if defined(__alpha__) || defined(__ia64__) |
459 | m |= MODE_64BIT; /* 64bit platforms only */ | |
460 | #endif | |
461 | /* platforms with 64bit flag in /proc/cpuinfo, define | |
462 | * 32bit default here */ | |
463 | #if defined(__i386__) || defined(__x86_64__) || \ | |
c487c90c | 464 | defined(__s390x__) || defined(__s390__) || defined(__sparc_v9__) |
f633ad4e KZ |
465 | m |= MODE_32BIT; |
466 | #endif | |
467 | return m; | |
468 | } | |
469 | ||
5dd7507c | 470 | static void |
e8aa16ee | 471 | read_basicinfo(struct lscpu_desc *desc) |
5dd7507c | 472 | { |
d50363cd | 473 | FILE *fp = path_fopen("r", 1, _PATH_PROC_CPUINFO); |
5dd7507c CQ |
474 | char buf[BUFSIZ]; |
475 | struct utsname utsbuf; | |
476 | ||
477 | /* architecture */ | |
478 | if (uname(&utsbuf) == -1) | |
479 | err(EXIT_FAILURE, _("error: uname failed")); | |
e8aa16ee | 480 | desc->arch = xstrdup(utsbuf.machine); |
5dd7507c CQ |
481 | |
482 | /* count CPU(s) */ | |
7e03f383 KZ |
483 | while(path_exist(_PATH_SYS_SYSTEM "/cpu/cpu%d", desc->ncpus)) |
484 | desc->ncpus++; | |
5dd7507c CQ |
485 | |
486 | /* details */ | |
487 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
e8aa16ee KZ |
488 | if (lookup(buf, "vendor", &desc->vendor)) ; |
489 | else if (lookup(buf, "vendor_id", &desc->vendor)) ; | |
e8aa16ee KZ |
490 | else if (lookup(buf, "family", &desc->family)) ; |
491 | else if (lookup(buf, "cpu family", &desc->family)) ; | |
492 | else if (lookup(buf, "model", &desc->model)) ; | |
493 | else if (lookup(buf, "stepping", &desc->stepping)) ; | |
494 | else if (lookup(buf, "cpu MHz", &desc->mhz)) ; | |
f633ad4e KZ |
495 | else if (lookup(buf, "flags", &desc->flags)) ; /* x86 */ |
496 | else if (lookup(buf, "features", &desc->flags)) ; /* s390 */ | |
c487c90c | 497 | else if (lookup(buf, "type", &desc->flags)) ; /* sparc64 */ |
9b8d4d5f | 498 | else if (lookup(buf, "bogomips", &desc->bogomips)) ; |
abcd6368 | 499 | else if (lookup(buf, "bogomips per cpu", &desc->bogomips)) ; /* s390 */ |
5dd7507c CQ |
500 | else |
501 | continue; | |
502 | } | |
c8b64f6d | 503 | |
f633ad4e KZ |
504 | desc->mode = init_mode(); |
505 | ||
e8aa16ee KZ |
506 | if (desc->flags) { |
507 | snprintf(buf, sizeof(buf), " %s ", desc->flags); | |
c8b64f6d | 508 | if (strstr(buf, " svm ")) |
e8aa16ee | 509 | desc->virtflag = strdup("svm"); |
c8b64f6d | 510 | else if (strstr(buf, " vmx ")) |
e8aa16ee | 511 | desc->virtflag = strdup("vmx"); |
79e8b41a | 512 | if (strstr(buf, " lm ")) |
f633ad4e KZ |
513 | desc->mode |= MODE_32BIT | MODE_64BIT; /* x86_64 */ |
514 | if (strstr(buf, " zarch ")) | |
515 | desc->mode |= MODE_32BIT | MODE_64BIT; /* s390x */ | |
c487c90c KZ |
516 | if (strstr(buf, " sun4v ") || strstr(buf, " sun4u ")) |
517 | desc->mode |= MODE_32BIT | MODE_64BIT; /* sparc64 */ | |
c8b64f6d KZ |
518 | } |
519 | ||
5dd7507c | 520 | fclose(fp); |
7e03f383 KZ |
521 | |
522 | if (path_exist(_PATH_SYS_SYSTEM "/cpu/kernel_max")) | |
3d6e5c35 GR |
523 | /* note that kernel_max is maximum index [NR_CPUS-1] */ |
524 | maxcpus = path_getnum(_PATH_SYS_SYSTEM "/cpu/kernel_max") + 1; | |
7e03f383 KZ |
525 | |
526 | else if (!sysrootlen) | |
527 | /* the root is '/' so we are working with data from the current kernel */ | |
528 | maxcpus = get_max_number_of_cpus(); | |
529 | else | |
d0bb6987 | 530 | /* we are reading some /sys snapshot instead of the real /sys, |
7e03f383 KZ |
531 | * let's use any crazy number... */ |
532 | maxcpus = desc->ncpus > 2048 ? desc->ncpus : 2048; | |
aac1e59e KZ |
533 | |
534 | /* get mask for online CPUs */ | |
e282eec2 KZ |
535 | if (path_exist(_PATH_SYS_SYSTEM "/cpu/online")) { |
536 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); | |
5d4ba40d | 537 | desc->online = path_cpulist(_PATH_SYS_SYSTEM "/cpu/online"); |
e282eec2 KZ |
538 | desc->nthreads = CPU_COUNT_S(setsize, desc->online); |
539 | } | |
a0fff77e HC |
540 | |
541 | /* get dispatching mode */ | |
542 | if (path_exist(_PATH_SYS_SYSTEM "/cpu/dispatching")) | |
543 | desc->dispatching = path_getnum(_PATH_SYS_SYSTEM "/cpu/dispatching"); | |
544 | else | |
545 | desc->dispatching = -1; | |
5dd7507c CQ |
546 | } |
547 | ||
c8b64f6d KZ |
548 | static int |
549 | has_pci_device(int vendor, int device) | |
550 | { | |
551 | FILE *f; | |
552 | int num, fn, ven, dev; | |
553 | int res = 1; | |
554 | ||
d50363cd | 555 | f = path_fopen("r", 0, _PATH_PROC_PCIDEVS); |
c8b64f6d KZ |
556 | if (!f) |
557 | return 0; | |
558 | ||
559 | /* for more details about bus/pci/devices format see | |
560 | * drivers/pci/proc.c in linux kernel | |
561 | */ | |
562 | while(fscanf(f, "%02x%02x\t%04x%04x\t%*[^\n]", | |
563 | &num, &fn, &ven, &dev) == 4) { | |
564 | ||
565 | if (ven == vendor && dev == device) | |
566 | goto found; | |
567 | } | |
568 | ||
569 | res = 0; | |
570 | found: | |
571 | fclose(f); | |
572 | return res; | |
573 | } | |
574 | ||
575 | #if defined(__x86_64__) || defined(__i386__) | |
576 | ||
577 | /* | |
578 | * This CPUID leaf returns the information about the hypervisor. | |
579 | * EAX : maximum input value for CPUID supported by the hypervisor. | |
580 | * EBX, ECX, EDX : Hypervisor vendor ID signature. E.g. VMwareVMware. | |
581 | */ | |
582 | #define HYPERVISOR_INFO_LEAF 0x40000000 | |
583 | ||
584 | static inline void | |
585 | cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, | |
586 | unsigned int *ecx, unsigned int *edx) | |
587 | { | |
c9239f23 MF |
588 | __asm__( |
589 | #if defined(__PIC__) && defined(__i386__) | |
590 | /* x86 PIC cannot clobber ebx -- gcc bitches */ | |
591 | "pushl %%ebx;" | |
592 | "cpuid;" | |
593 | "movl %%ebx, %%esi;" | |
594 | "popl %%ebx;" | |
595 | : "=S" (*ebx), | |
596 | #else | |
597 | "cpuid;" | |
598 | : "=b" (*ebx), | |
599 | #endif | |
600 | "=a" (*eax), | |
c8b64f6d KZ |
601 | "=c" (*ecx), |
602 | "=d" (*edx) | |
bc54770d | 603 | : "1" (op), "c"(0)); |
c8b64f6d KZ |
604 | } |
605 | ||
606 | static void | |
e8aa16ee | 607 | read_hypervisor_cpuid(struct lscpu_desc *desc) |
c8b64f6d KZ |
608 | { |
609 | unsigned int eax = 0, ebx = 0, ecx = 0, edx = 0; | |
610 | char hyper_vendor_id[13]; | |
611 | ||
612 | memset(hyper_vendor_id, 0, sizeof(hyper_vendor_id)); | |
613 | ||
614 | cpuid(HYPERVISOR_INFO_LEAF, &eax, &ebx, &ecx, &edx); | |
615 | memcpy(hyper_vendor_id + 0, &ebx, 4); | |
616 | memcpy(hyper_vendor_id + 4, &ecx, 4); | |
617 | memcpy(hyper_vendor_id + 8, &edx, 4); | |
618 | hyper_vendor_id[12] = '\0'; | |
619 | ||
620 | if (!hyper_vendor_id[0]) | |
621 | return; | |
622 | ||
623 | if (!strncmp("XenVMMXenVMM", hyper_vendor_id, 12)) | |
e8aa16ee | 624 | desc->hyper = HYPER_XEN; |
c8b64f6d | 625 | else if (!strncmp("KVMKVMKVM", hyper_vendor_id, 9)) |
e8aa16ee | 626 | desc->hyper = HYPER_KVM; |
c8b64f6d | 627 | else if (!strncmp("Microsoft Hv", hyper_vendor_id, 12)) |
e8aa16ee | 628 | desc->hyper = HYPER_MSHV; |
99fbc877 SH |
629 | else if (!strncmp("VMwareVMware", hyper_vendor_id, 12)) |
630 | desc->hyper = HYPER_VMWARE; | |
c8b64f6d KZ |
631 | } |
632 | ||
633 | #else /* ! __x86_64__ */ | |
634 | static void | |
e8aa16ee | 635 | read_hypervisor_cpuid(struct lscpu_desc *desc) |
c8b64f6d KZ |
636 | { |
637 | } | |
638 | #endif | |
639 | ||
640 | static void | |
e8aa16ee | 641 | read_hypervisor(struct lscpu_desc *desc) |
c8b64f6d | 642 | { |
e8aa16ee | 643 | read_hypervisor_cpuid(desc); |
c8b64f6d | 644 | |
e8aa16ee | 645 | if (desc->hyper) |
c8b64f6d | 646 | /* hvm */ |
e8aa16ee | 647 | desc->virtype = VIRT_FULL; |
c8b64f6d | 648 | |
d50363cd | 649 | else if (path_exist(_PATH_PROC_XEN)) { |
c8b64f6d | 650 | /* Xen para-virt or dom0 */ |
d50363cd | 651 | FILE *fd = path_fopen("r", 0, _PATH_PROC_XENCAP); |
c8b64f6d KZ |
652 | int dom0 = 0; |
653 | ||
654 | if (fd) { | |
655 | char buf[256]; | |
656 | ||
657 | if (fscanf(fd, "%s", buf) == 1 && | |
658 | !strcmp(buf, "control_d")) | |
659 | dom0 = 1; | |
660 | fclose(fd); | |
661 | } | |
e8aa16ee KZ |
662 | desc->virtype = dom0 ? VIRT_NONE : VIRT_PARA; |
663 | desc->hyper = HYPER_XEN; | |
c8b64f6d KZ |
664 | |
665 | } else if (has_pci_device(0x5853, 0x0001)) { | |
666 | /* Xen full-virt on non-x86_64 */ | |
e8aa16ee KZ |
667 | desc->hyper = HYPER_XEN; |
668 | desc->virtype = VIRT_FULL; | |
b8ec7bdf HC |
669 | } else if (path_exist(_PATH_PROC_SYSINFO)) { |
670 | FILE *fd = path_fopen("r", 0, _PATH_PROC_SYSINFO); | |
671 | char buf[BUFSIZ]; | |
672 | ||
673 | desc->hyper = HYPER_IBM; | |
674 | desc->virtype = VIRT_FULL; | |
675 | while (fgets(buf, sizeof(buf), fd) != NULL) { | |
676 | if (!strstr(buf, "Control Program:")) | |
677 | continue; | |
678 | if (!strstr(buf, "KVM")) | |
679 | desc->hyper = HYPER_IBM; | |
680 | else | |
681 | desc->hyper = HYPER_KVM; | |
682 | } | |
683 | fclose(fd); | |
c8b64f6d KZ |
684 | } |
685 | } | |
686 | ||
7e03f383 KZ |
687 | /* add @set to the @ary, unnecesary set is deallocated. */ |
688 | static int add_cpuset_to_array(cpu_set_t **ary, int *items, cpu_set_t *set) | |
689 | { | |
690 | int i; | |
691 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); | |
692 | ||
693 | if (!ary) | |
694 | return -1; | |
695 | ||
696 | for (i = 0; i < *items; i++) { | |
697 | if (CPU_EQUAL_S(setsize, set, ary[i])) | |
698 | break; | |
699 | } | |
700 | if (i == *items) { | |
701 | ary[*items] = set; | |
702 | ++*items; | |
703 | return 0; | |
704 | } | |
705 | CPU_FREE(set); | |
706 | return 1; | |
707 | } | |
708 | ||
5dd7507c | 709 | static void |
7e03f383 | 710 | read_topology(struct lscpu_desc *desc, int num) |
5dd7507c | 711 | { |
56baaa4e | 712 | cpu_set_t *thread_siblings, *core_siblings, *book_siblings; |
7e03f383 KZ |
713 | |
714 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/topology/thread_siblings", num)) | |
715 | return; | |
5dd7507c | 716 | |
7e03f383 KZ |
717 | thread_siblings = path_cpuset(_PATH_SYS_CPU |
718 | "/cpu%d/topology/thread_siblings", num); | |
719 | core_siblings = path_cpuset(_PATH_SYS_CPU | |
720 | "/cpu%d/topology/core_siblings", num); | |
56baaa4e HC |
721 | book_siblings = NULL; |
722 | if (path_exist(_PATH_SYS_CPU "/cpu%d/topology/book_siblings", num)) { | |
723 | book_siblings = path_cpuset(_PATH_SYS_CPU | |
724 | "/cpu%d/topology/book_siblings", num); | |
725 | } | |
aac1e59e KZ |
726 | |
727 | if (!desc->coremaps) { | |
56baaa4e | 728 | int nbooks, nsockets, ncores, nthreads; |
7e03f383 KZ |
729 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); |
730 | ||
731 | /* threads within one core */ | |
732 | nthreads = CPU_COUNT_S(setsize, thread_siblings); | |
733 | /* cores within one socket */ | |
734 | ncores = CPU_COUNT_S(setsize, core_siblings) / nthreads; | |
32a46618 HC |
735 | /* number of sockets within one book. |
736 | * Because of odd / non-present cpu maps and to keep | |
737 | * calculation easy we make sure that nsockets and | |
738 | * nbooks is at least 1. | |
739 | */ | |
740 | nsockets = desc->ncpus / nthreads / ncores ?: 1; | |
56baaa4e | 741 | /* number of books */ |
32a46618 | 742 | nbooks = desc->ncpus / nthreads / ncores / nsockets ?: 1; |
e282eec2 KZ |
743 | |
744 | /* all threads, see also read_basicinfo() | |
32a46618 | 745 | * -- fallback for kernels without |
e282eec2 KZ |
746 | * /sys/devices/system/cpu/online. |
747 | */ | |
748 | if (!desc->nthreads) | |
32a46618 | 749 | desc->nthreads = nbooks * nsockets * ncores * nthreads; |
9d1a3a18 HC |
750 | /* For each map we make sure that it can have up to ncpus |
751 | * entries. This is because we cannot reliably calculate the | |
752 | * number of cores, sockets and books on all architectures. | |
753 | * E.g. completely virtualized architectures like s390 may | |
754 | * have multiple sockets of different sizes. | |
755 | */ | |
756 | desc->coremaps = xcalloc(desc->ncpus, sizeof(cpu_set_t *)); | |
757 | desc->socketmaps = xcalloc(desc->ncpus, sizeof(cpu_set_t *)); | |
08de16d0 | 758 | if (book_siblings) |
9d1a3a18 | 759 | desc->bookmaps = xcalloc(desc->ncpus, sizeof(cpu_set_t *)); |
7e03f383 | 760 | } |
5dd7507c | 761 | |
7e03f383 KZ |
762 | add_cpuset_to_array(desc->socketmaps, &desc->nsockets, core_siblings); |
763 | add_cpuset_to_array(desc->coremaps, &desc->ncores, thread_siblings); | |
56baaa4e HC |
764 | if (book_siblings) |
765 | add_cpuset_to_array(desc->bookmaps, &desc->nbooks, book_siblings); | |
7e03f383 | 766 | } |
2b8fcb81 HC |
767 | static void |
768 | read_polarization(struct lscpu_desc *desc, int num) | |
769 | { | |
770 | char mode[64]; | |
771 | ||
772 | if (desc->dispatching < 0) | |
773 | return; | |
774 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/polarization", num)) | |
775 | return; | |
776 | if (!desc->polarization) | |
777 | desc->polarization = xcalloc(desc->ncpus, sizeof(int)); | |
778 | path_getstr(mode, sizeof(mode), _PATH_SYS_CPU "/cpu%d/polarization", num); | |
779 | if (strncmp(mode, "vertical:low", sizeof(mode)) == 0) | |
780 | desc->polarization[num] = POLAR_VLOW; | |
781 | else if (strncmp(mode, "vertical:medium", sizeof(mode)) == 0) | |
782 | desc->polarization[num] = POLAR_VMEDIUM; | |
783 | else if (strncmp(mode, "vertical:high", sizeof(mode)) == 0) | |
784 | desc->polarization[num] = POLAR_VHIGH; | |
785 | else if (strncmp(mode, "horizontal", sizeof(mode)) == 0) | |
786 | desc->polarization[num] = POLAR_HORIZONTAL; | |
787 | else | |
788 | desc->polarization[num] = POLAR_UNKNOWN; | |
789 | } | |
7e03f383 | 790 | |
596b8845 HC |
791 | static void |
792 | read_address(struct lscpu_desc *desc, int num) | |
793 | { | |
794 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/address", num)) | |
795 | return; | |
796 | if (!desc->addresses) | |
797 | desc->addresses = xcalloc(desc->ncpus, sizeof(int)); | |
798 | desc->addresses[num] = path_getnum(_PATH_SYS_CPU "/cpu%d/address", num); | |
799 | } | |
7e03f383 | 800 | |
d231eea1 HC |
801 | static void |
802 | read_configured(struct lscpu_desc *desc, int num) | |
803 | { | |
804 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/configure", num)) | |
805 | return; | |
806 | if (!desc->configured) | |
807 | desc->configured = xcalloc(desc->ncpus, sizeof(int)); | |
808 | desc->configured[num] = path_getnum(_PATH_SYS_CPU "/cpu%d/configure", num); | |
809 | } | |
810 | ||
7e03f383 KZ |
811 | static int |
812 | cachecmp(const void *a, const void *b) | |
813 | { | |
814 | struct cpu_cache *c1 = (struct cpu_cache *) a; | |
815 | struct cpu_cache *c2 = (struct cpu_cache *) b; | |
816 | ||
817 | return strcmp(c2->name, c1->name); | |
5dd7507c CQ |
818 | } |
819 | ||
820 | static void | |
7e03f383 | 821 | read_cache(struct lscpu_desc *desc, int num) |
5dd7507c CQ |
822 | { |
823 | char buf[256]; | |
7e03f383 | 824 | int i; |
5dd7507c | 825 | |
aac1e59e | 826 | if (!desc->ncaches) { |
7e03f383 KZ |
827 | while(path_exist(_PATH_SYS_SYSTEM "/cpu/cpu%d/cache/index%d", |
828 | num, desc->ncaches)) | |
829 | desc->ncaches++; | |
5dd7507c | 830 | |
7e03f383 KZ |
831 | if (!desc->ncaches) |
832 | return; | |
5dd7507c | 833 | |
08de16d0 | 834 | desc->caches = xcalloc(desc->ncaches, sizeof(*desc->caches)); |
7e03f383 KZ |
835 | } |
836 | for (i = 0; i < desc->ncaches; i++) { | |
837 | struct cpu_cache *ca = &desc->caches[i]; | |
838 | cpu_set_t *map; | |
839 | ||
dcdead42 HC |
840 | if (!path_exist(_PATH_SYS_SYSTEM "/cpu/cpu%d/cache/index%d", |
841 | num, i)) | |
842 | continue; | |
7e03f383 KZ |
843 | if (!ca->name) { |
844 | int type, level; | |
845 | ||
846 | /* cache type */ | |
847 | path_getstr(buf, sizeof(buf), | |
848 | _PATH_SYS_CPU "/cpu%d/cache/index%d/type", | |
849 | num, i); | |
850 | if (!strcmp(buf, "Data")) | |
851 | type = 'd'; | |
852 | else if (!strcmp(buf, "Instruction")) | |
853 | type = 'i'; | |
854 | else | |
855 | type = 0; | |
856 | ||
857 | /* cache level */ | |
858 | level = path_getnum(_PATH_SYS_CPU "/cpu%d/cache/index%d/level", | |
859 | num, i); | |
860 | if (type) | |
861 | snprintf(buf, sizeof(buf), "L%d%c", level, type); | |
862 | else | |
863 | snprintf(buf, sizeof(buf), "L%d", level); | |
864 | ||
865 | ca->name = xstrdup(buf); | |
866 | ||
867 | /* cache size */ | |
868 | path_getstr(buf, sizeof(buf), | |
869 | _PATH_SYS_CPU "/cpu%d/cache/index%d/size", | |
870 | num, i); | |
871 | ca->size = xstrdup(buf); | |
872 | } | |
5dd7507c | 873 | |
7e03f383 KZ |
874 | /* information about how CPUs share different caches */ |
875 | map = path_cpuset(_PATH_SYS_CPU "/cpu%d/cache/index%d/shared_cpu_map", | |
876 | num, i); | |
5dd7507c | 877 | |
08de16d0 DB |
878 | if (!ca->sharedmaps) |
879 | ca->sharedmaps = xcalloc(desc->ncpus, sizeof(cpu_set_t *)); | |
7e03f383 | 880 | add_cpuset_to_array(ca->sharedmaps, &ca->nsharedmaps, map); |
5dd7507c CQ |
881 | } |
882 | } | |
883 | ||
884 | static void | |
e8aa16ee | 885 | read_nodes(struct lscpu_desc *desc) |
5dd7507c CQ |
886 | { |
887 | int i; | |
888 | ||
889 | /* number of NUMA node */ | |
7e03f383 KZ |
890 | while (path_exist(_PATH_SYS_SYSTEM "/node/node%d", desc->nnodes)) |
891 | desc->nnodes++; | |
892 | ||
893 | if (!desc->nnodes) | |
894 | return; | |
5dd7507c | 895 | |
08de16d0 | 896 | desc->nodemaps = xcalloc(desc->nnodes, sizeof(cpu_set_t *)); |
5dd7507c CQ |
897 | |
898 | /* information about how nodes share different CPUs */ | |
7e03f383 KZ |
899 | for (i = 0; i < desc->nnodes; i++) |
900 | desc->nodemaps[i] = path_cpuset( | |
5dd7507c CQ |
901 | _PATH_SYS_SYSTEM "/node/node%d/cpumap", |
902 | i); | |
903 | } | |
904 | ||
e3b3a2f3 KZ |
905 | static char * |
906 | get_cell_data(struct lscpu_desc *desc, int cpu, int col, | |
907 | struct lscpu_modifier *mod, | |
908 | char *buf, size_t bufsz) | |
5dd7507c | 909 | { |
7e03f383 | 910 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); |
e9d659ea | 911 | size_t idx; |
e3b3a2f3 KZ |
912 | |
913 | *buf = '\0'; | |
5dd7507c | 914 | |
477251f8 KZ |
915 | switch (col) { |
916 | case COL_CPU: | |
e3b3a2f3 | 917 | snprintf(buf, bufsz, "%d", cpu); |
477251f8 KZ |
918 | break; |
919 | case COL_CORE: | |
e9d659ea KZ |
920 | if (cpuset_ary_isset(cpu, desc->coremaps, |
921 | desc->ncores, setsize, &idx) == 0) | |
e3b3a2f3 | 922 | snprintf(buf, bufsz, "%zd", idx); |
477251f8 KZ |
923 | break; |
924 | case COL_SOCKET: | |
e9d659ea KZ |
925 | if (cpuset_ary_isset(cpu, desc->socketmaps, |
926 | desc->nsockets, setsize, &idx) == 0) | |
e3b3a2f3 | 927 | snprintf(buf, bufsz, "%zd", idx); |
477251f8 KZ |
928 | break; |
929 | case COL_NODE: | |
e9d659ea KZ |
930 | if (cpuset_ary_isset(cpu, desc->nodemaps, |
931 | desc->nnodes, setsize, &idx) == 0) | |
e3b3a2f3 | 932 | snprintf(buf, bufsz, "%zd", idx); |
477251f8 KZ |
933 | break; |
934 | case COL_BOOK: | |
e9d659ea KZ |
935 | if (cpuset_ary_isset(cpu, desc->bookmaps, |
936 | desc->nbooks, setsize, &idx) == 0) | |
e3b3a2f3 | 937 | snprintf(buf, bufsz, "%zd", idx); |
477251f8 KZ |
938 | break; |
939 | case COL_CACHE: | |
e3b3a2f3 KZ |
940 | { |
941 | char *p = buf; | |
942 | size_t sz = bufsz; | |
943 | int j; | |
944 | ||
7e03f383 KZ |
945 | for (j = desc->ncaches - 1; j >= 0; j--) { |
946 | struct cpu_cache *ca = &desc->caches[j]; | |
e9d659ea KZ |
947 | |
948 | if (cpuset_ary_isset(cpu, ca->sharedmaps, | |
e3b3a2f3 KZ |
949 | ca->nsharedmaps, setsize, &idx) == 0) { |
950 | int x = snprintf(p, sz, "%zd", idx); | |
951 | if (x <= 0 || (size_t) x + 2 >= sz) | |
952 | return NULL; | |
953 | p += x; | |
954 | sz -= x; | |
955 | } | |
956 | if (j != 0) { | |
957 | *p++ = mod->compat ? ',' : ':'; | |
958 | *p = '\0'; | |
959 | sz++; | |
960 | } | |
5dd7507c | 961 | } |
477251f8 | 962 | break; |
e3b3a2f3 | 963 | } |
2b8fcb81 | 964 | case COL_POLARIZATION: |
ba45d8c1 KZ |
965 | if (desc->polarization) { |
966 | int x = desc->polarization[cpu]; | |
967 | ||
e3b3a2f3 | 968 | snprintf(buf, bufsz, "%s", |
ba45d8c1 KZ |
969 | mod->mode == OUTPUT_PARSABLE ? |
970 | polar_modes[x].parsable : | |
971 | polar_modes[x].readable); | |
972 | } | |
2b8fcb81 | 973 | break; |
596b8845 HC |
974 | case COL_ADDRESS: |
975 | if (desc->addresses) | |
e3b3a2f3 | 976 | snprintf(buf, bufsz, "%d", desc->addresses[cpu]); |
596b8845 | 977 | break; |
d231eea1 HC |
978 | case COL_CONFIGURED: |
979 | if (desc->configured) | |
980 | snprintf(buf, bufsz, | |
981 | desc->configured[cpu] ? _("Y") : _("N")); | |
982 | break; | |
a7e5300c HC |
983 | case COL_ONLINE: |
984 | if (desc->online) | |
985 | snprintf(buf, bufsz, is_cpu_online(desc, cpu) ? _("Y") : _("N")); | |
986 | break; | |
477251f8 | 987 | } |
e3b3a2f3 KZ |
988 | return buf; |
989 | } | |
990 | ||
991 | static char * | |
992 | get_cell_header(struct lscpu_desc *desc, int col, | |
993 | struct lscpu_modifier *mod, | |
994 | char *buf, size_t bufsz) | |
995 | { | |
996 | *buf = '\0'; | |
997 | ||
998 | if (col == COL_CACHE) { | |
999 | char *p = buf; | |
1000 | size_t sz = bufsz; | |
1001 | int i; | |
1002 | ||
1003 | for (i = desc->ncaches - 1; i >= 0; i--) { | |
1004 | int x = snprintf(p, sz, "%s", desc->caches[i].name); | |
1005 | if (x <= 0 || (size_t) x + 2 > sz) | |
1006 | return NULL; | |
1007 | sz -= x; | |
1008 | p += x; | |
1009 | if (i > 0) { | |
1010 | *p++ = mod->compat ? ',' : ':'; | |
1011 | *p = '\0'; | |
1012 | sz++; | |
1013 | } | |
1014 | } | |
1015 | if (desc->ncaches) | |
1016 | return buf; | |
1017 | } | |
1018 | snprintf(buf, bufsz, colnames[col]); | |
1019 | return buf; | |
477251f8 KZ |
1020 | } |
1021 | ||
1022 | /* | |
ba45d8c1 | 1023 | * [-p] backend, we support two parsable formats: |
477251f8 KZ |
1024 | * |
1025 | * 1) "compatible" -- this format is compatible with the original lscpu(1) | |
1026 | * output and it contains fixed set of the columns. The CACHE columns are at | |
1027 | * the end of the line and the CACHE is not printed if the number of the caches | |
1028 | * is zero. The CACHE columns are separated by two commas, for example: | |
1029 | * | |
1030 | * $ lscpu --parse | |
1031 | * # CPU,Core,Socket,Node,,L1d,L1i,L2 | |
1032 | * 0,0,0,0,,0,0,0 | |
1033 | * 1,1,0,0,,1,1,0 | |
1034 | * | |
1035 | * 2) "user defined output" -- this format prints always all columns without | |
1036 | * special prefix for CACHE column. If there are not CACHEs then the column is | |
1037 | * empty and the header "Cache" is printed rather than a real name of the cache. | |
1038 | * The CACHE columns are separated by ':'. | |
1039 | * | |
1040 | * $ lscpu --parse=CPU,CORE,SOCKET,NODE,CACHE | |
1041 | * # CPU,Core,Socket,Node,L1d:L1i:L2 | |
1042 | * 0,0,0,0,0:0:0 | |
1043 | * 1,1,0,0,1:1:0 | |
1044 | */ | |
1045 | static void | |
8005924a KZ |
1046 | print_parsable(struct lscpu_desc *desc, int cols[], int ncols, |
1047 | struct lscpu_modifier *mod) | |
477251f8 | 1048 | { |
e3b3a2f3 KZ |
1049 | char buf[BUFSIZ], *data; |
1050 | int i; | |
477251f8 | 1051 | |
e3b3a2f3 KZ |
1052 | /* |
1053 | * Header | |
1054 | */ | |
477251f8 KZ |
1055 | printf(_( |
1056 | "# The following is the parsable format, which can be fed to other\n" | |
1057 | "# programs. Each different item in every column has an unique ID\n" | |
1058 | "# starting from zero.\n")); | |
1059 | ||
1060 | fputs("# ", stdout); | |
1061 | for (i = 0; i < ncols; i++) { | |
1062 | if (cols[i] == COL_CACHE) { | |
8005924a | 1063 | if (mod->compat && !desc->ncaches) |
477251f8 | 1064 | continue; |
8005924a | 1065 | if (mod->compat && i != 0) |
477251f8 | 1066 | putchar(','); |
477251f8 | 1067 | } |
e3b3a2f3 KZ |
1068 | if (i > 0) |
1069 | putchar(','); | |
1070 | ||
1071 | data = get_cell_header(desc, cols[i], mod, buf, sizeof(buf)); | |
1072 | fputs(data && *data ? data : "", stdout); | |
477251f8 KZ |
1073 | } |
1074 | putchar('\n'); | |
1075 | ||
e3b3a2f3 KZ |
1076 | /* |
1077 | * Data | |
1078 | */ | |
477251f8 | 1079 | for (i = 0; i < desc->ncpus; i++) { |
e3b3a2f3 KZ |
1080 | int c; |
1081 | ||
a7e5300c | 1082 | if (!mod->allcpus && desc->online && !is_cpu_online(desc, i)) |
477251f8 KZ |
1083 | continue; |
1084 | for (c = 0; c < ncols; c++) { | |
8005924a | 1085 | if (mod->compat && cols[c] == COL_CACHE) { |
477251f8 KZ |
1086 | if (!desc->ncaches) |
1087 | continue; | |
1088 | if (c > 0) | |
1089 | putchar(','); | |
1090 | } | |
1091 | if (c > 0) | |
1092 | putchar(','); | |
e3b3a2f3 KZ |
1093 | |
1094 | data = get_cell_data(desc, i, cols[c], mod, | |
1095 | buf, sizeof(buf)); | |
1096 | fputs(data && *data ? data : "", stdout); | |
477251f8 | 1097 | } |
5dd7507c CQ |
1098 | putchar('\n'); |
1099 | } | |
1100 | } | |
1101 | ||
ba45d8c1 KZ |
1102 | /* |
1103 | * [-e] backend | |
1104 | */ | |
1105 | static void | |
1106 | print_readable(struct lscpu_desc *desc, int cols[], int ncols, | |
1107 | struct lscpu_modifier *mod) | |
1108 | { | |
1109 | int i; | |
1110 | char buf[BUFSIZ], *data; | |
1111 | struct tt *tt = tt_new_table(0); | |
1112 | ||
1113 | if (!tt) | |
1114 | err(EXIT_FAILURE, _("failed to initialize output table")); | |
1115 | ||
1116 | for (i = 0; i < ncols; i++) { | |
1117 | char *p = data = get_cell_header(desc, cols[i], | |
1118 | mod, buf, sizeof(buf)); | |
1119 | while (p && *p != '\0') | |
1120 | *p++ = toupper((unsigned int) *p); | |
1121 | tt_define_column(tt, xstrdup(data), 0, 0); | |
1122 | } | |
1123 | ||
1124 | for (i = 0; i < desc->ncpus; i++) { | |
1125 | int c; | |
1126 | struct tt_line *line; | |
1127 | ||
a7e5300c | 1128 | if (!mod->allcpus && desc->online && !is_cpu_online(desc, i)) |
ba45d8c1 KZ |
1129 | continue; |
1130 | ||
1131 | line = tt_add_line(tt, NULL); | |
1132 | ||
1133 | for (c = 0; c < ncols; c++) { | |
1134 | data = get_cell_data(desc, i, cols[c], mod, | |
1135 | buf, sizeof(buf)); | |
a7e5300c | 1136 | tt_line_set_data(line, c, data && *data ? xstrdup(data) : "-"); |
ba45d8c1 KZ |
1137 | } |
1138 | } | |
1139 | ||
1140 | tt_print_table(tt); | |
1141 | } | |
5dd7507c CQ |
1142 | |
1143 | /* output formats "<key> <value>"*/ | |
1144 | #define print_s(_key, _val) printf("%-23s%s\n", _key, _val) | |
1145 | #define print_n(_key, _val) printf("%-23s%d\n", _key, _val) | |
1146 | ||
1147 | static void | |
4f912c6a KZ |
1148 | print_cpuset(const char *key, cpu_set_t *set, int hex) |
1149 | { | |
1150 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); | |
1151 | size_t setbuflen = 7 * maxcpus; | |
1152 | char setbuf[setbuflen], *p; | |
1153 | ||
1154 | if (hex) { | |
1155 | p = cpumask_create(setbuf, setbuflen, set, setsize); | |
1156 | printf("%-23s0x%s\n", key, p); | |
1157 | } else { | |
1158 | p = cpulist_create(setbuf, setbuflen, set, setsize); | |
1159 | print_s(key, p); | |
1160 | } | |
1161 | ||
1162 | } | |
1163 | ||
ba45d8c1 KZ |
1164 | /* |
1165 | * default output | |
1166 | */ | |
4f912c6a | 1167 | static void |
8005924a | 1168 | print_summary(struct lscpu_desc *desc, struct lscpu_modifier *mod) |
5dd7507c | 1169 | { |
7e03f383 KZ |
1170 | char buf[512]; |
1171 | int i; | |
aac1e59e | 1172 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); |
7e03f383 | 1173 | |
e6b0611b | 1174 | print_s(_("Architecture:"), desc->arch); |
79e8b41a | 1175 | |
f633ad4e | 1176 | if (desc->mode) { |
79e8b41a KZ |
1177 | char buf[64], *p = buf; |
1178 | ||
f633ad4e | 1179 | if (desc->mode & MODE_32BIT) { |
79e8b41a KZ |
1180 | strcpy(p, "32-bit, "); |
1181 | p += 8; | |
1182 | } | |
f633ad4e | 1183 | if (desc->mode & MODE_64BIT) { |
79e8b41a KZ |
1184 | strcpy(p, "64-bit, "); |
1185 | p += 8; | |
1186 | } | |
1187 | *(p - 2) = '\0'; | |
1188 | print_s(_("CPU op-mode(s):"), buf); | |
1189 | } | |
aabe2441 | 1190 | #if !defined(WORDS_BIGENDIAN) |
9b8d4d5f DB |
1191 | print_s(_("Byte Order:"), "Little Endian"); |
1192 | #else | |
1193 | print_s(_("Byte Order:"), "Big Endian"); | |
9b8d4d5f | 1194 | #endif |
4a939e04 | 1195 | print_n(_("CPU(s):"), desc->ncpus); |
4f912c6a | 1196 | |
5d4ba40d | 1197 | if (desc->online) |
8005924a KZ |
1198 | print_cpuset(mod->hex ? _("On-line CPU(s) mask:") : |
1199 | _("On-line CPU(s) list:"), | |
1200 | desc->online, mod->hex); | |
4f912c6a | 1201 | |
5d4ba40d | 1202 | if (desc->online && CPU_COUNT_S(setsize, desc->online) != desc->ncpus) { |
4f912c6a KZ |
1203 | cpu_set_t *set; |
1204 | ||
1205 | /* Linux kernel provides cpuset of off-line CPUs that contains | |
1206 | * all configured CPUs (see /sys/devices/system/cpu/offline), | |
1207 | * but want to print real (present in system) off-line CPUs only. | |
1208 | */ | |
1209 | set = cpuset_alloc(maxcpus, NULL, NULL); | |
1210 | if (!set) | |
1211 | err(EXIT_FAILURE, _("failed to callocate cpu set")); | |
1212 | CPU_ZERO_S(setsize, set); | |
1213 | for (i = 0; i < desc->ncpus; i++) { | |
1214 | if (!is_cpu_online(desc, i)) | |
1215 | CPU_SET_S(i, setsize, set); | |
1216 | } | |
8005924a KZ |
1217 | print_cpuset(mod->hex ? _("Off-line CPU(s) mask:") : |
1218 | _("Off-line CPU(s) list:"), | |
1219 | set, mod->hex); | |
4f912c6a KZ |
1220 | cpuset_free(set); |
1221 | } | |
5dd7507c | 1222 | |
7e03f383 | 1223 | if (desc->nsockets) { |
8648ca96 HC |
1224 | int cores_per_socket, sockets_per_book, books; |
1225 | ||
1226 | cores_per_socket = sockets_per_book = books = 0; | |
1227 | /* s390 detects its cpu topology via /proc/sysinfo, if present. | |
1228 | * Using simply the cpu topology masks in sysfs will not give | |
1229 | * usable results since everything is virtualized. E.g. | |
1230 | * virtual core 0 may have only 1 cpu, but virtual core 2 may | |
1231 | * five cpus. | |
1232 | * If the cpu topology is not exported (e.g. 2nd level guest) | |
1233 | * fall back to old calculation scheme. | |
1234 | */ | |
1235 | if (path_exist(_PATH_PROC_SYSINFO)) { | |
1236 | FILE *fd = path_fopen("r", 0, _PATH_PROC_SYSINFO); | |
1237 | char buf[BUFSIZ]; | |
1238 | int t0, t1, t2; | |
1239 | ||
1240 | while (fgets(buf, sizeof(buf), fd) != NULL) { | |
1241 | if (sscanf(buf, "CPU Topology SW:%d%d%d%d%d%d", | |
1242 | &t0, &t1, &t2, &books, &sockets_per_book, | |
1243 | &cores_per_socket) == 6) | |
1244 | break; | |
1245 | } | |
1246 | } | |
7e03f383 | 1247 | print_n(_("Thread(s) per core:"), desc->nthreads / desc->ncores); |
8648ca96 HC |
1248 | print_n(_("Core(s) per socket:"), |
1249 | cores_per_socket ?: desc->ncores / desc->nsockets); | |
56baaa4e | 1250 | if (desc->nbooks) { |
8648ca96 HC |
1251 | print_n(_("Socket(s) per book:"), |
1252 | sockets_per_book ?: desc->nsockets / desc->nbooks); | |
1253 | print_n(_("Book(s):"), books ?: desc->nbooks); | |
56baaa4e | 1254 | } else { |
8648ca96 | 1255 | print_n(_("Socket(s):"), sockets_per_book ?: desc->nsockets); |
56baaa4e | 1256 | } |
5dd7507c | 1257 | } |
7e03f383 KZ |
1258 | if (desc->nnodes) |
1259 | print_n(_("NUMA node(s):"), desc->nnodes); | |
e8aa16ee KZ |
1260 | if (desc->vendor) |
1261 | print_s(_("Vendor ID:"), desc->vendor); | |
1262 | if (desc->family) | |
1263 | print_s(_("CPU family:"), desc->family); | |
1264 | if (desc->model) | |
1265 | print_s(_("Model:"), desc->model); | |
1266 | if (desc->stepping) | |
1267 | print_s(_("Stepping:"), desc->stepping); | |
1268 | if (desc->mhz) | |
1269 | print_s(_("CPU MHz:"), desc->mhz); | |
9b8d4d5f DB |
1270 | if (desc->bogomips) |
1271 | print_s(_("BogoMIPS:"), desc->bogomips); | |
e8aa16ee KZ |
1272 | if (desc->virtflag) { |
1273 | if (!strcmp(desc->virtflag, "svm")) | |
5dd7507c | 1274 | print_s(_("Virtualization:"), "AMD-V"); |
e8aa16ee | 1275 | else if (!strcmp(desc->virtflag, "vmx")) |
5dd7507c CQ |
1276 | print_s(_("Virtualization:"), "VT-x"); |
1277 | } | |
e8aa16ee KZ |
1278 | if (desc->hyper) { |
1279 | print_s(_("Hypervisor vendor:"), hv_vendors[desc->hyper]); | |
1280 | print_s(_("Virtualization type:"), virt_types[desc->virtype]); | |
c8b64f6d | 1281 | } |
a0fff77e HC |
1282 | if (desc->dispatching >= 0) |
1283 | print_s(_("Dispatching mode:"), disp_modes[desc->dispatching]); | |
7e03f383 | 1284 | if (desc->ncaches) { |
c8b64f6d | 1285 | char buf[512]; |
5dd7507c CQ |
1286 | int i; |
1287 | ||
7e03f383 | 1288 | for (i = desc->ncaches - 1; i >= 0; i--) { |
5dd7507c | 1289 | snprintf(buf, sizeof(buf), |
7e03f383 KZ |
1290 | _("%s cache:"), desc->caches[i].name); |
1291 | print_s(buf, desc->caches[i].size); | |
1292 | } | |
1293 | } | |
1294 | ||
4f912c6a KZ |
1295 | for (i = 0; i < desc->nnodes; i++) { |
1296 | snprintf(buf, sizeof(buf), _("NUMA node%d CPU(s):"), i); | |
8005924a | 1297 | print_cpuset(buf, desc->nodemaps[i], mod->hex); |
5dd7507c CQ |
1298 | } |
1299 | } | |
1300 | ||
39561c70 | 1301 | static void __attribute__((__noreturn__)) usage(FILE *out) |
5dd7507c | 1302 | { |
7f1ec5e8 KZ |
1303 | fputs(_("\nUsage:\n"), out); |
1304 | fprintf(out, | |
1305 | _(" %s [options]\n"), program_invocation_short_name); | |
1306 | ||
1307 | fputs(_("\nOptions:\n"), out); | |
8005924a KZ |
1308 | fputs(_(" -h, --help print this help\n" |
1309 | " -p, --parse[=<list>] print out a parsable format\n" | |
ba45d8c1 | 1310 | " -e, --extended[=<list>] print out a extended readable format\n" |
8005924a KZ |
1311 | " -s, --sysroot <dir> use directory DIR as system root\n" |
1312 | " -x, --hex print hexadecimal masks rather than lists of CPUs\n" | |
1313 | " -V, --version print version information and exit\n\n"), out); | |
4f912c6a | 1314 | |
39561c70 | 1315 | exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); |
5dd7507c CQ |
1316 | } |
1317 | ||
1318 | int main(int argc, char *argv[]) | |
1319 | { | |
8005924a KZ |
1320 | struct lscpu_modifier _mod = { .mode = OUTPUT_SUMMARY }, *mod = &_mod; |
1321 | struct lscpu_desc _desc = { .flags = 0 }, *desc = &_desc; | |
1322 | int c, i; | |
477251f8 | 1323 | int columns[ARRAY_SIZE(colnames)], ncolumns = 0; |
5dd7507c | 1324 | |
6c7d5ae9 | 1325 | static const struct option longopts[] = { |
47b6e8b6 | 1326 | { "help", no_argument, 0, 'h' }, |
ba45d8c1 | 1327 | { "extended", optional_argument, 0, 'e' }, |
477251f8 | 1328 | { "parse", optional_argument, 0, 'p' }, |
47b6e8b6 | 1329 | { "sysroot", required_argument, 0, 's' }, |
4f912c6a | 1330 | { "hex", no_argument, 0, 'x' }, |
44de912c | 1331 | { "version", no_argument, 0, 'V' }, |
5dd7507c CQ |
1332 | { NULL, 0, 0, 0 } |
1333 | }; | |
1334 | ||
2f8f1388 | 1335 | setlocale(LC_ALL, ""); |
5dd7507c CQ |
1336 | bindtextdomain(PACKAGE, LOCALEDIR); |
1337 | textdomain(PACKAGE); | |
1338 | ||
ba45d8c1 KZ |
1339 | while ((c = getopt_long(argc, argv, "e::hp::s:xV", longopts, NULL)) != -1) { |
1340 | ||
1341 | if (mod->mode != OUTPUT_SUMMARY && strchr("ep", c)) | |
1342 | errx(EXIT_FAILURE, | |
1343 | _("extended and parsable are mutually exclusive")); | |
1344 | ||
5dd7507c CQ |
1345 | switch (c) { |
1346 | case 'h': | |
39561c70 | 1347 | usage(stdout); |
5dd7507c | 1348 | case 'p': |
ba45d8c1 | 1349 | case 'e': |
477251f8 KZ |
1350 | if (optarg) { |
1351 | if (*optarg == '=') | |
1352 | optarg++; | |
1353 | ncolumns = string_to_idarray(optarg, | |
1354 | columns, ARRAY_SIZE(columns), | |
1355 | column_name_to_id); | |
1356 | if (ncolumns < 0) | |
1357 | return EXIT_FAILURE; | |
477251f8 | 1358 | } |
ba45d8c1 | 1359 | mod->mode = c == 'p' ? OUTPUT_PARSABLE : OUTPUT_READABLE; |
5dd7507c | 1360 | break; |
47b6e8b6 | 1361 | case 's': |
d50363cd | 1362 | sysrootlen = strlen(optarg); |
47b6e8b6 | 1363 | strncpy(pathbuf, optarg, sizeof(pathbuf)); |
d50363cd | 1364 | pathbuf[sizeof(pathbuf) - 1] = '\0'; |
47b6e8b6 | 1365 | break; |
4f912c6a | 1366 | case 'x': |
8005924a | 1367 | mod->hex = 1; |
4f912c6a | 1368 | break; |
44de912c HC |
1369 | case 'V': |
1370 | printf(_("%s from %s\n"), program_invocation_short_name, | |
1371 | PACKAGE_STRING); | |
1372 | return EXIT_SUCCESS; | |
5dd7507c | 1373 | default: |
39561c70 | 1374 | usage(stderr); |
5dd7507c CQ |
1375 | } |
1376 | } | |
1377 | ||
e8aa16ee | 1378 | read_basicinfo(desc); |
5dd7507c | 1379 | |
7e03f383 | 1380 | for (i = 0; i < desc->ncpus; i++) { |
5d4ba40d | 1381 | if (desc->online && !is_cpu_online(desc, i)) |
aac1e59e | 1382 | continue; |
7e03f383 KZ |
1383 | read_topology(desc, i); |
1384 | read_cache(desc, i); | |
2b8fcb81 | 1385 | read_polarization(desc, i); |
596b8845 | 1386 | read_address(desc, i); |
d231eea1 | 1387 | read_configured(desc, i); |
47b6e8b6 | 1388 | } |
7e03f383 KZ |
1389 | |
1390 | qsort(desc->caches, desc->ncaches, sizeof(struct cpu_cache), cachecmp); | |
1391 | ||
1392 | read_nodes(desc); | |
e8aa16ee | 1393 | read_hypervisor(desc); |
c8b64f6d | 1394 | |
8005924a | 1395 | switch(mod->mode) { |
ba45d8c1 KZ |
1396 | case OUTPUT_SUMMARY: |
1397 | print_summary(desc, mod); | |
1398 | break; | |
1399 | case OUTPUT_PARSABLE: | |
1400 | if (!ncolumns) { | |
1401 | columns[ncolumns++] = COL_CPU; | |
1402 | columns[ncolumns++] = COL_CORE; | |
1403 | columns[ncolumns++] = COL_SOCKET; | |
1404 | columns[ncolumns++] = COL_NODE; | |
1405 | columns[ncolumns++] = COL_CACHE; | |
1406 | mod->compat = 1; | |
1407 | } | |
1408 | print_parsable(desc, columns, ncolumns, mod); | |
1409 | break; | |
1410 | case OUTPUT_READABLE: | |
a7e5300c | 1411 | mod->allcpus = 1; |
ba45d8c1 KZ |
1412 | if (!ncolumns) { |
1413 | /* No list was given. Just print whatever is there. */ | |
1414 | columns[ncolumns++] = COL_CPU; | |
1415 | if (desc->nodemaps) | |
8005924a | 1416 | columns[ncolumns++] = COL_NODE; |
ba45d8c1 KZ |
1417 | if (desc->bookmaps) |
1418 | columns[ncolumns++] = COL_BOOK; | |
1419 | if (desc->socketmaps) | |
1420 | columns[ncolumns++] = COL_SOCKET; | |
1421 | if (desc->coremaps) | |
1422 | columns[ncolumns++] = COL_CORE; | |
1423 | if (desc->caches) | |
8005924a | 1424 | columns[ncolumns++] = COL_CACHE; |
a7e5300c HC |
1425 | if (desc->online) |
1426 | columns[ncolumns++] = COL_ONLINE; | |
d231eea1 HC |
1427 | if (desc->configured) |
1428 | columns[ncolumns++] = COL_CONFIGURED; | |
ba45d8c1 KZ |
1429 | if (desc->polarization) |
1430 | columns[ncolumns++] = COL_POLARIZATION; | |
1431 | if (desc->addresses) | |
1432 | columns[ncolumns++] = COL_ADDRESS; | |
1433 | } | |
1434 | print_readable(desc, columns, ncolumns, mod); | |
1435 | break; | |
8005924a | 1436 | } |
5dd7507c | 1437 | |
cf474aac | 1438 | return EXIT_SUCCESS; |
5dd7507c | 1439 | } |