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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 | * | |
7cebf0bb SK |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
5dd7507c CQ |
20 | */ |
21 | ||
5bd31c6d | 22 | #include <assert.h> |
5dd7507c CQ |
23 | #include <ctype.h> |
24 | #include <dirent.h> | |
5dd7507c CQ |
25 | #include <errno.h> |
26 | #include <fcntl.h> | |
27 | #include <getopt.h> | |
28 | #include <stdio.h> | |
29 | #include <stdlib.h> | |
30 | #include <string.h> | |
31 | #include <sys/utsname.h> | |
32 | #include <unistd.h> | |
33 | #include <stdarg.h> | |
39561c70 KZ |
34 | #include <sys/types.h> |
35 | #include <sys/stat.h> | |
5dd7507c | 36 | |
b7744730 RM |
37 | #if defined(__x86_64__) || defined(__i386__) |
38 | # define INCLUDE_VMWARE_BDOOR | |
39 | #endif | |
40 | ||
41 | #ifdef INCLUDE_VMWARE_BDOOR | |
42 | # include <stdint.h> | |
43 | # include <signal.h> | |
44 | # include <strings.h> | |
45 | # include <setjmp.h> | |
65322517 | 46 | # ifdef HAVE_SYS_IO_H |
b7744730 RM |
47 | # include <sys/io.h> |
48 | # endif | |
49 | #endif | |
50 | ||
83db4eb2 OO |
51 | #include <libsmartcols.h> |
52 | ||
7e03f383 | 53 | #include "cpuset.h" |
5dd7507c | 54 | #include "nls.h" |
4581647a | 55 | #include "xalloc.h" |
eb76ca98 | 56 | #include "c.h" |
477251f8 KZ |
57 | #include "strutils.h" |
58 | #include "bitops.h" | |
8148217b | 59 | #include "path.h" |
efb8854f | 60 | #include "closestream.h" |
41a8940d | 61 | #include "optutils.h" |
fb2627ce | 62 | #include "lscpu.h" |
477251f8 | 63 | |
5dd7507c CQ |
64 | #define CACHE_MAX 100 |
65 | ||
66 | /* /sys paths */ | |
d50363cd | 67 | #define _PATH_SYS_SYSTEM "/sys/devices/system" |
7e03f383 | 68 | #define _PATH_SYS_CPU _PATH_SYS_SYSTEM "/cpu" |
e9074a16 | 69 | #define _PATH_SYS_NODE _PATH_SYS_SYSTEM "/node" |
d50363cd | 70 | #define _PATH_PROC_XEN "/proc/xen" |
c8b64f6d | 71 | #define _PATH_PROC_XENCAP _PATH_PROC_XEN "/capabilities" |
d50363cd KZ |
72 | #define _PATH_PROC_CPUINFO "/proc/cpuinfo" |
73 | #define _PATH_PROC_PCIDEVS "/proc/bus/pci/devices" | |
b8ec7bdf | 74 | #define _PATH_PROC_SYSINFO "/proc/sysinfo" |
fb2627ce OO |
75 | #define _PATH_PROC_STATUS "/proc/self/status" |
76 | #define _PATH_PROC_VZ "/proc/vz" | |
77 | #define _PATH_PROC_BC "/proc/bc" | |
5bd31c6d | 78 | #define _PATH_PROC_DEVICETREE "/proc/device-tree" |
fb2627ce | 79 | #define _PATH_DEV_MEM "/dev/mem" |
5dd7507c | 80 | |
c8b64f6d KZ |
81 | /* virtualization types */ |
82 | enum { | |
83 | VIRT_NONE = 0, | |
84 | VIRT_PARA, | |
857d9cdf KZ |
85 | VIRT_FULL, |
86 | VIRT_CONT | |
c8b64f6d KZ |
87 | }; |
88 | const char *virt_types[] = { | |
89 | [VIRT_NONE] = N_("none"), | |
90 | [VIRT_PARA] = N_("para"), | |
857d9cdf KZ |
91 | [VIRT_FULL] = N_("full"), |
92 | [VIRT_CONT] = N_("container"), | |
c8b64f6d KZ |
93 | }; |
94 | ||
c8b64f6d KZ |
95 | const char *hv_vendors[] = { |
96 | [HYPER_NONE] = NULL, | |
97 | [HYPER_XEN] = "Xen", | |
98 | [HYPER_KVM] = "KVM", | |
99fbc877 | 99 | [HYPER_MSHV] = "Microsoft", |
b8ec7bdf | 100 | [HYPER_VMWARE] = "VMware", |
fb2627ce OO |
101 | [HYPER_IBM] = "IBM", |
102 | [HYPER_VSERVER] = "Linux-VServer", | |
103 | [HYPER_UML] = "User-mode Linux", | |
104 | [HYPER_INNOTEK] = "Innotek GmbH", | |
105 | [HYPER_HITACHI] = "Hitachi", | |
96ce475f RM |
106 | [HYPER_PARALLELS] = "Parallels", |
107 | [HYPER_VBOX] = "Oracle", | |
5bd31c6d RM |
108 | [HYPER_OS400] = "OS/400", |
109 | [HYPER_PHYP] = "pHyp", | |
96ce475f RM |
110 | }; |
111 | ||
112 | const int hv_vendor_pci[] = { | |
113 | [HYPER_NONE] = 0x0000, | |
114 | [HYPER_XEN] = 0x5853, | |
115 | [HYPER_KVM] = 0x0000, | |
116 | [HYPER_MSHV] = 0x1414, | |
117 | [HYPER_VMWARE] = 0x15ad, | |
118 | [HYPER_VBOX] = 0x80ee, | |
119 | }; | |
120 | ||
121 | const int hv_graphics_pci[] = { | |
122 | [HYPER_NONE] = 0x0000, | |
123 | [HYPER_XEN] = 0x0001, | |
124 | [HYPER_KVM] = 0x0000, | |
125 | [HYPER_MSHV] = 0x5353, | |
126 | [HYPER_VMWARE] = 0x0710, | |
127 | [HYPER_VBOX] = 0xbeef, | |
c8b64f6d KZ |
128 | }; |
129 | ||
f633ad4e | 130 | /* CPU modes */ |
79e8b41a | 131 | enum { |
f633ad4e KZ |
132 | MODE_32BIT = (1 << 1), |
133 | MODE_64BIT = (1 << 2) | |
79e8b41a | 134 | }; |
c8b64f6d | 135 | |
e8aa16ee KZ |
136 | /* cache(s) description */ |
137 | struct cpu_cache { | |
7e03f383 KZ |
138 | char *name; |
139 | char *size; | |
140 | ||
141 | int nsharedmaps; | |
142 | cpu_set_t **sharedmaps; | |
e8aa16ee KZ |
143 | }; |
144 | ||
a0fff77e HC |
145 | /* dispatching modes */ |
146 | enum { | |
147 | DISP_HORIZONTAL = 0, | |
148 | DISP_VERTICAL = 1 | |
149 | }; | |
150 | ||
151 | const char *disp_modes[] = { | |
152 | [DISP_HORIZONTAL] = N_("horizontal"), | |
153 | [DISP_VERTICAL] = N_("vertical") | |
154 | }; | |
155 | ||
2b8fcb81 HC |
156 | /* cpu polarization */ |
157 | enum { | |
158 | POLAR_UNKNOWN = 0, | |
159 | POLAR_VLOW, | |
160 | POLAR_VMEDIUM, | |
161 | POLAR_VHIGH, | |
162 | POLAR_HORIZONTAL | |
163 | }; | |
164 | ||
8005924a KZ |
165 | struct polarization_modes { |
166 | char *parsable; | |
167 | char *readable; | |
168 | }; | |
169 | ||
170 | struct polarization_modes polar_modes[] = { | |
171 | [POLAR_UNKNOWN] = {"U", "-"}, | |
172 | [POLAR_VLOW] = {"VL", "vert-low"}, | |
173 | [POLAR_VMEDIUM] = {"VM", "vert-medium"}, | |
174 | [POLAR_VHIGH] = {"VH", "vert-high"}, | |
175 | [POLAR_HORIZONTAL] = {"H", "horizontal"}, | |
2b8fcb81 HC |
176 | }; |
177 | ||
e8aa16ee KZ |
178 | /* global description */ |
179 | struct lscpu_desc { | |
5dd7507c CQ |
180 | char *arch; |
181 | char *vendor; | |
182 | char *family; | |
183 | char *model; | |
1461094c | 184 | char *modelname; |
c8b64f6d | 185 | char *virtflag; /* virtualization flag (vmx, svm) */ |
10829cd7 | 186 | char *hypervisor; /* hypervisor software */ |
c8b64f6d KZ |
187 | int hyper; /* hypervisor vendor ID */ |
188 | int virtype; /* VIRT_PARA|FULL|NONE ? */ | |
5dd7507c | 189 | char *mhz; |
e065a597 DB |
190 | char **maxmhz; /* maximum mega hertz */ |
191 | char **minmhz; /* minimum mega hertz */ | |
5dd7507c | 192 | char *stepping; |
9b8d4d5f | 193 | char *bogomips; |
5dd7507c | 194 | char *flags; |
a0fff77e | 195 | int dispatching; /* none, horizontal or vertical */ |
79e8b41a KZ |
196 | int mode; /* rm, lm or/and tm */ |
197 | ||
a5cfffff TK |
198 | int ncpuspos; /* maximal possible CPUs */ |
199 | int ncpus; /* number of present CPUs */ | |
200 | cpu_set_t *present; /* mask with present CPUs */ | |
aac1e59e | 201 | cpu_set_t *online; /* mask with online CPUs */ |
7e03f383 | 202 | |
4f642863 AT |
203 | int nthreads; /* number of online threads */ |
204 | ||
205 | int ncaches; | |
206 | struct cpu_cache *caches; | |
207 | ||
208 | /* | |
209 | * All maps are sequentially indexed (0..ncpuspos), the array index | |
210 | * does not have match with cpuX number as presented by kernel. You | |
211 | * have to use real_cpu_num() to get the real cpuX number. | |
212 | * | |
213 | * For example, the possible system CPUs are: 1,3,5, it means that | |
214 | * ncpuspos=3, so all arrays are in range 0..3. | |
215 | */ | |
216 | int *idx2cpunum; /* mapping index to CPU num */ | |
217 | ||
7e03f383 | 218 | int nnodes; /* number of NUMA modes */ |
e9074a16 | 219 | int *idx2nodenum; /* Support for discontinuous nodes */ |
7e03f383 KZ |
220 | cpu_set_t **nodemaps; /* array with NUMA nodes */ |
221 | ||
56baaa4e HC |
222 | /* books -- based on book_siblings (internal kernel map of cpuX's |
223 | * hardware threads within the same book */ | |
224 | int nbooks; /* number of all online books */ | |
225 | cpu_set_t **bookmaps; /* unique book_siblings */ | |
226 | ||
7e03f383 KZ |
227 | /* sockets -- based on core_siblings (internal kernel map of cpuX's |
228 | * hardware threads within the same physical_package_id (socket)) */ | |
e282eec2 | 229 | int nsockets; /* number of all online sockets */ |
7e03f383 KZ |
230 | cpu_set_t **socketmaps; /* unique core_siblings */ |
231 | ||
232 | /* cores -- based on thread_siblings (internel kernel map of cpuX's | |
233 | * hardware threads within the same core as cpuX) */ | |
e282eec2 | 234 | int ncores; /* number of all online cores */ |
7e03f383 KZ |
235 | cpu_set_t **coremaps; /* unique thread_siblings */ |
236 | ||
2b8fcb81 | 237 | int *polarization; /* cpu polarization */ |
596b8845 | 238 | int *addresses; /* physical cpu addresses */ |
d231eea1 | 239 | int *configured; /* cpu configured */ |
5dd7507c CQ |
240 | }; |
241 | ||
8005924a KZ |
242 | enum { |
243 | OUTPUT_SUMMARY = 0, /* default */ | |
244 | OUTPUT_PARSABLE, /* -p */ | |
ba45d8c1 | 245 | OUTPUT_READABLE, /* -e */ |
8005924a KZ |
246 | }; |
247 | ||
8148217b HC |
248 | enum { |
249 | SYSTEM_LIVE = 0, /* analyzing a live system */ | |
250 | SYSTEM_SNAPSHOT, /* analyzing a snapshot of a different system */ | |
251 | }; | |
252 | ||
8005924a | 253 | struct lscpu_modifier { |
a7e5300c | 254 | int mode; /* OUTPUT_* */ |
8148217b | 255 | int system; /* SYSTEM_* */ |
a7e5300c HC |
256 | unsigned int hex:1, /* print CPU masks rather than CPU lists */ |
257 | compat:1, /* use backwardly compatible format */ | |
7afc2387 HC |
258 | online:1, /* print online CPUs */ |
259 | offline:1; /* print offline CPUs */ | |
8005924a KZ |
260 | }; |
261 | ||
7e03f383 | 262 | static int maxcpus; /* size in bits of kernel cpu mask */ |
5dd7507c | 263 | |
aac1e59e | 264 | #define is_cpu_online(_d, _cpu) \ |
a5cfffff TK |
265 | ((_d) && (_d)->online ? \ |
266 | CPU_ISSET_S((_cpu), CPU_ALLOC_SIZE(maxcpus), (_d)->online) : 0) | |
267 | #define is_cpu_present(_d, _cpu) \ | |
268 | ((_d) && (_d)->present ? \ | |
269 | CPU_ISSET_S((_cpu), CPU_ALLOC_SIZE(maxcpus), (_d)->present) : 0) | |
aac1e59e | 270 | |
4f642863 AT |
271 | #define real_cpu_num(_d, _i) ((_d)->idx2cpunum[(_i)]) |
272 | ||
477251f8 | 273 | /* |
3d27b76a | 274 | * IDs |
477251f8 KZ |
275 | */ |
276 | enum { | |
277 | COL_CPU, | |
278 | COL_CORE, | |
279 | COL_SOCKET, | |
280 | COL_NODE, | |
281 | COL_BOOK, | |
2b8fcb81 | 282 | COL_CACHE, |
596b8845 | 283 | COL_POLARIZATION, |
d231eea1 HC |
284 | COL_ADDRESS, |
285 | COL_CONFIGURED, | |
a7e5300c | 286 | COL_ONLINE, |
e065a597 DB |
287 | COL_MAXMHZ, |
288 | COL_MINMHZ, | |
477251f8 KZ |
289 | }; |
290 | ||
3d27b76a KZ |
291 | /* column description |
292 | */ | |
293 | struct lscpu_coldesc { | |
294 | const char *name; | |
295 | const char *help; | |
296 | ||
297 | unsigned int is_abbr:1; /* name is abbreviation */ | |
477251f8 KZ |
298 | }; |
299 | ||
3d27b76a KZ |
300 | static struct lscpu_coldesc coldescs[] = |
301 | { | |
302 | [COL_CPU] = { "CPU", N_("logical CPU number"), 1 }, | |
303 | [COL_CORE] = { "CORE", N_("logical core number") }, | |
304 | [COL_SOCKET] = { "SOCKET", N_("logical socket number") }, | |
305 | [COL_NODE] = { "NODE", N_("logical NUMA node number") }, | |
306 | [COL_BOOK] = { "BOOK", N_("logical book number") }, | |
307 | [COL_CACHE] = { "CACHE", N_("shows how caches are shared between CPUs") }, | |
308 | [COL_POLARIZATION] = { "POLARIZATION", N_("CPU dispatching mode on virtual hardware") }, | |
309 | [COL_ADDRESS] = { "ADDRESS", N_("physical address of a CPU") }, | |
310 | [COL_CONFIGURED] = { "CONFIGURED", N_("shows if the hypervisor has allocated the CPU") }, | |
44320710 | 311 | [COL_ONLINE] = { "ONLINE", N_("shows if Linux currently makes use of the CPU") }, |
4df28845 BS |
312 | [COL_MAXMHZ] = { "MAXMHZ", N_("shows the maximum MHz of the CPU") }, |
313 | [COL_MINMHZ] = { "MINMHZ", N_("shows the minimum MHz of the CPU") } | |
3d27b76a | 314 | }; |
477251f8 | 315 | |
583f14cc KZ |
316 | static int |
317 | column_name_to_id(const char *name, size_t namesz) | |
477251f8 | 318 | { |
329fd1c3 | 319 | size_t i; |
477251f8 | 320 | |
3d27b76a KZ |
321 | for (i = 0; i < ARRAY_SIZE(coldescs); i++) { |
322 | const char *cn = coldescs[i].name; | |
477251f8 KZ |
323 | |
324 | if (!strncasecmp(name, cn, namesz) && !*(cn + namesz)) | |
325 | return i; | |
326 | } | |
327 | warnx(_("unknown column: %s"), name); | |
328 | return -1; | |
329 | } | |
330 | ||
5dd7507c CQ |
331 | /* Lookup a pattern and get the value from cpuinfo. |
332 | * Format is: | |
333 | * | |
334 | * "<pattern> : <key>" | |
335 | */ | |
583f14cc KZ |
336 | static int |
337 | lookup(char *line, char *pattern, char **value) | |
5dd7507c CQ |
338 | { |
339 | char *p, *v; | |
340 | int len = strlen(pattern); | |
341 | ||
342 | if (!*line) | |
343 | return 0; | |
344 | ||
345 | /* pattern */ | |
346 | if (strncmp(line, pattern, len)) | |
347 | return 0; | |
348 | ||
349 | /* white spaces */ | |
350 | for (p = line + len; isspace(*p); p++); | |
351 | ||
352 | /* separator */ | |
353 | if (*p != ':') | |
354 | return 0; | |
355 | ||
356 | /* white spaces */ | |
357 | for (++p; isspace(*p); p++); | |
358 | ||
359 | /* value */ | |
360 | if (!*p) | |
361 | return 0; | |
362 | v = p; | |
363 | ||
364 | /* end of value */ | |
365 | len = strlen(line) - 1; | |
366 | for (p = line + len; isspace(*(p-1)); p--); | |
367 | *p = '\0'; | |
368 | ||
369 | *value = xstrdup(v); | |
370 | return 1; | |
371 | } | |
372 | ||
f633ad4e KZ |
373 | /* Don't init the mode for platforms where we are not able to |
374 | * detect that CPU supports 64-bit mode. | |
375 | */ | |
376 | static int | |
8148217b | 377 | init_mode(struct lscpu_modifier *mod) |
f633ad4e KZ |
378 | { |
379 | int m = 0; | |
380 | ||
8148217b | 381 | if (mod->system == SYSTEM_SNAPSHOT) |
4e740fd8 KZ |
382 | /* reading info from any /{sys,proc} dump, don't mix it with |
383 | * information about our real CPU */ | |
384 | return 0; | |
385 | ||
f633ad4e KZ |
386 | #if defined(__alpha__) || defined(__ia64__) |
387 | m |= MODE_64BIT; /* 64bit platforms only */ | |
388 | #endif | |
389 | /* platforms with 64bit flag in /proc/cpuinfo, define | |
390 | * 32bit default here */ | |
391 | #if defined(__i386__) || defined(__x86_64__) || \ | |
c487c90c | 392 | defined(__s390x__) || defined(__s390__) || defined(__sparc_v9__) |
f633ad4e KZ |
393 | m |= MODE_32BIT; |
394 | #endif | |
395 | return m; | |
396 | } | |
397 | ||
5dd7507c | 398 | static void |
8148217b | 399 | read_basicinfo(struct lscpu_desc *desc, struct lscpu_modifier *mod) |
5dd7507c | 400 | { |
d50363cd | 401 | FILE *fp = path_fopen("r", 1, _PATH_PROC_CPUINFO); |
5dd7507c CQ |
402 | char buf[BUFSIZ]; |
403 | struct utsname utsbuf; | |
a5cfffff | 404 | size_t setsize; |
5dd7507c CQ |
405 | |
406 | /* architecture */ | |
407 | if (uname(&utsbuf) == -1) | |
408 | err(EXIT_FAILURE, _("error: uname failed")); | |
e8aa16ee | 409 | desc->arch = xstrdup(utsbuf.machine); |
5dd7507c | 410 | |
5dd7507c CQ |
411 | /* details */ |
412 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
e8aa16ee KZ |
413 | if (lookup(buf, "vendor", &desc->vendor)) ; |
414 | else if (lookup(buf, "vendor_id", &desc->vendor)) ; | |
e8aa16ee KZ |
415 | else if (lookup(buf, "family", &desc->family)) ; |
416 | else if (lookup(buf, "cpu family", &desc->family)) ; | |
417 | else if (lookup(buf, "model", &desc->model)) ; | |
1461094c | 418 | else if (lookup(buf, "model name", &desc->modelname)) ; |
e8aa16ee KZ |
419 | else if (lookup(buf, "stepping", &desc->stepping)) ; |
420 | else if (lookup(buf, "cpu MHz", &desc->mhz)) ; | |
f633ad4e KZ |
421 | else if (lookup(buf, "flags", &desc->flags)) ; /* x86 */ |
422 | else if (lookup(buf, "features", &desc->flags)) ; /* s390 */ | |
c487c90c | 423 | else if (lookup(buf, "type", &desc->flags)) ; /* sparc64 */ |
9b8d4d5f | 424 | else if (lookup(buf, "bogomips", &desc->bogomips)) ; |
abcd6368 | 425 | else if (lookup(buf, "bogomips per cpu", &desc->bogomips)) ; /* s390 */ |
5dd7507c CQ |
426 | else |
427 | continue; | |
428 | } | |
c8b64f6d | 429 | |
8148217b | 430 | desc->mode = init_mode(mod); |
f633ad4e | 431 | |
e8aa16ee KZ |
432 | if (desc->flags) { |
433 | snprintf(buf, sizeof(buf), " %s ", desc->flags); | |
c8b64f6d | 434 | if (strstr(buf, " svm ")) |
8290a249 | 435 | desc->virtflag = xstrdup("svm"); |
c8b64f6d | 436 | else if (strstr(buf, " vmx ")) |
8290a249 | 437 | desc->virtflag = xstrdup("vmx"); |
79e8b41a | 438 | if (strstr(buf, " lm ")) |
f633ad4e KZ |
439 | desc->mode |= MODE_32BIT | MODE_64BIT; /* x86_64 */ |
440 | if (strstr(buf, " zarch ")) | |
441 | desc->mode |= MODE_32BIT | MODE_64BIT; /* s390x */ | |
c487c90c KZ |
442 | if (strstr(buf, " sun4v ") || strstr(buf, " sun4u ")) |
443 | desc->mode |= MODE_32BIT | MODE_64BIT; /* sparc64 */ | |
c8b64f6d KZ |
444 | } |
445 | ||
4581b716 KZ |
446 | if (desc->arch && mod->system != SYSTEM_SNAPSHOT) { |
447 | if (strcmp(desc->arch, "ppc64") == 0) | |
448 | desc->mode |= MODE_32BIT | MODE_64BIT; | |
449 | else if (strcmp(desc->arch, "ppc") == 0) | |
450 | desc->mode |= MODE_32BIT; | |
451 | } | |
452 | ||
5dd7507c | 453 | fclose(fp); |
7e03f383 | 454 | |
1d56b55e | 455 | if (path_exist(_PATH_SYS_CPU "/kernel_max")) |
3d6e5c35 | 456 | /* note that kernel_max is maximum index [NR_CPUS-1] */ |
1d56b55e | 457 | maxcpus = path_read_s32(_PATH_SYS_CPU "/kernel_max") + 1; |
7e03f383 | 458 | |
8148217b | 459 | else if (mod->system == SYSTEM_LIVE) |
7e03f383 KZ |
460 | /* the root is '/' so we are working with data from the current kernel */ |
461 | maxcpus = get_max_number_of_cpus(); | |
701e2b8e KZ |
462 | |
463 | if (maxcpus <= 0) | |
464 | /* error or we are reading some /sys snapshot instead of the | |
465 | * real /sys, let's use any crazy number... */ | |
a5cfffff TK |
466 | maxcpus = 2048; |
467 | ||
468 | setsize = CPU_ALLOC_SIZE(maxcpus); | |
469 | ||
1d56b55e RM |
470 | if (path_exist(_PATH_SYS_CPU "/possible")) { |
471 | cpu_set_t *tmp = path_read_cpulist(maxcpus, _PATH_SYS_CPU "/possible"); | |
4f642863 AT |
472 | int num, idx; |
473 | ||
a5cfffff | 474 | desc->ncpuspos = CPU_COUNT_S(setsize, tmp); |
4f642863 AT |
475 | desc->idx2cpunum = xcalloc(desc->ncpuspos, sizeof(int)); |
476 | ||
477 | for (num = 0, idx = 0; num < maxcpus; num++) { | |
478 | if (CPU_ISSET(num, tmp)) | |
479 | desc->idx2cpunum[idx++] = num; | |
480 | } | |
a5cfffff TK |
481 | cpuset_free(tmp); |
482 | } else | |
483 | err(EXIT_FAILURE, _("failed to determine number of CPUs: %s"), | |
1d56b55e | 484 | _PATH_SYS_CPU "/possible"); |
a5cfffff TK |
485 | |
486 | ||
487 | /* get mask for present CPUs */ | |
1d56b55e RM |
488 | if (path_exist(_PATH_SYS_CPU "/present")) { |
489 | desc->present = path_read_cpulist(maxcpus, _PATH_SYS_CPU "/present"); | |
a5cfffff TK |
490 | desc->ncpus = CPU_COUNT_S(setsize, desc->present); |
491 | } | |
aac1e59e KZ |
492 | |
493 | /* get mask for online CPUs */ | |
1d56b55e RM |
494 | if (path_exist(_PATH_SYS_CPU "/online")) { |
495 | desc->online = path_read_cpulist(maxcpus, _PATH_SYS_CPU "/online"); | |
e282eec2 KZ |
496 | desc->nthreads = CPU_COUNT_S(setsize, desc->online); |
497 | } | |
a0fff77e HC |
498 | |
499 | /* get dispatching mode */ | |
1d56b55e RM |
500 | if (path_exist(_PATH_SYS_CPU "/dispatching")) |
501 | desc->dispatching = path_read_s32(_PATH_SYS_CPU "/dispatching"); | |
a0fff77e HC |
502 | else |
503 | desc->dispatching = -1; | |
5dd7507c CQ |
504 | } |
505 | ||
c8b64f6d | 506 | static int |
140014a4 | 507 | has_pci_device(unsigned int vendor, unsigned int device) |
c8b64f6d KZ |
508 | { |
509 | FILE *f; | |
13cf6fc8 | 510 | unsigned int num, fn, ven, dev; |
c8b64f6d KZ |
511 | int res = 1; |
512 | ||
d50363cd | 513 | f = path_fopen("r", 0, _PATH_PROC_PCIDEVS); |
c8b64f6d KZ |
514 | if (!f) |
515 | return 0; | |
516 | ||
517 | /* for more details about bus/pci/devices format see | |
518 | * drivers/pci/proc.c in linux kernel | |
519 | */ | |
520 | while(fscanf(f, "%02x%02x\t%04x%04x\t%*[^\n]", | |
521 | &num, &fn, &ven, &dev) == 4) { | |
522 | ||
523 | if (ven == vendor && dev == device) | |
524 | goto found; | |
525 | } | |
526 | ||
527 | res = 0; | |
528 | found: | |
529 | fclose(f); | |
530 | return res; | |
531 | } | |
532 | ||
533 | #if defined(__x86_64__) || defined(__i386__) | |
534 | ||
535 | /* | |
536 | * This CPUID leaf returns the information about the hypervisor. | |
537 | * EAX : maximum input value for CPUID supported by the hypervisor. | |
538 | * EBX, ECX, EDX : Hypervisor vendor ID signature. E.g. VMwareVMware. | |
539 | */ | |
540 | #define HYPERVISOR_INFO_LEAF 0x40000000 | |
541 | ||
542 | static inline void | |
543 | cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, | |
544 | unsigned int *ecx, unsigned int *edx) | |
545 | { | |
c9239f23 MF |
546 | __asm__( |
547 | #if defined(__PIC__) && defined(__i386__) | |
548 | /* x86 PIC cannot clobber ebx -- gcc bitches */ | |
7845b91d | 549 | "xchg %%ebx, %%esi;" |
c9239f23 | 550 | "cpuid;" |
7845b91d | 551 | "xchg %%esi, %%ebx;" |
c9239f23 MF |
552 | : "=S" (*ebx), |
553 | #else | |
554 | "cpuid;" | |
555 | : "=b" (*ebx), | |
556 | #endif | |
557 | "=a" (*eax), | |
c8b64f6d KZ |
558 | "=c" (*ecx), |
559 | "=d" (*edx) | |
bc54770d | 560 | : "1" (op), "c"(0)); |
c8b64f6d KZ |
561 | } |
562 | ||
563 | static void | |
e8aa16ee | 564 | read_hypervisor_cpuid(struct lscpu_desc *desc) |
c8b64f6d KZ |
565 | { |
566 | unsigned int eax = 0, ebx = 0, ecx = 0, edx = 0; | |
567 | char hyper_vendor_id[13]; | |
568 | ||
569 | memset(hyper_vendor_id, 0, sizeof(hyper_vendor_id)); | |
570 | ||
571 | cpuid(HYPERVISOR_INFO_LEAF, &eax, &ebx, &ecx, &edx); | |
572 | memcpy(hyper_vendor_id + 0, &ebx, 4); | |
573 | memcpy(hyper_vendor_id + 4, &ecx, 4); | |
574 | memcpy(hyper_vendor_id + 8, &edx, 4); | |
575 | hyper_vendor_id[12] = '\0'; | |
576 | ||
577 | if (!hyper_vendor_id[0]) | |
578 | return; | |
579 | ||
580 | if (!strncmp("XenVMMXenVMM", hyper_vendor_id, 12)) | |
e8aa16ee | 581 | desc->hyper = HYPER_XEN; |
c8b64f6d | 582 | else if (!strncmp("KVMKVMKVM", hyper_vendor_id, 9)) |
e8aa16ee | 583 | desc->hyper = HYPER_KVM; |
c8b64f6d | 584 | else if (!strncmp("Microsoft Hv", hyper_vendor_id, 12)) |
e8aa16ee | 585 | desc->hyper = HYPER_MSHV; |
99fbc877 SH |
586 | else if (!strncmp("VMwareVMware", hyper_vendor_id, 12)) |
587 | desc->hyper = HYPER_VMWARE; | |
c8b64f6d KZ |
588 | } |
589 | ||
b7744730 | 590 | #else /* ! (__x86_64__ || __i386__) */ |
c8b64f6d | 591 | static void |
6d791b4c | 592 | read_hypervisor_cpuid(struct lscpu_desc *desc __attribute__((__unused__))) |
c8b64f6d KZ |
593 | { |
594 | } | |
595 | #endif | |
596 | ||
5bd31c6d RM |
597 | static int |
598 | read_hypervisor_powerpc(struct lscpu_desc *desc) | |
599 | { | |
600 | assert(!desc->hyper); | |
601 | ||
602 | /* powerpc: | |
603 | * IBM iSeries: legacy, if /proc/iSeries exists, its para-virtualized on top of OS/400 | |
604 | * IBM pSeries: always has a hypervisor | |
605 | * if partition-name is "full", its kind of "bare-metal": full-system-partition | |
606 | * otherwise its some partition created by Hardware Management Console | |
607 | * in any case, its always some sort of HVM | |
608 | * Note that pSeries could also be emulated by qemu/KVM. | |
609 | * KVM: "linux,kvm" in /hypervisor/compatible indicates a KVM guest | |
610 | * Xen: not in use, not detected | |
611 | */ | |
612 | if (path_exist("/proc/iSeries")) { | |
613 | desc->hyper = HYPER_OS400; | |
614 | desc->virtype = VIRT_PARA; | |
615 | } else if (path_exist(_PATH_PROC_DEVICETREE "/ibm,partition-name") | |
616 | && path_exist(_PATH_PROC_DEVICETREE "/hmc-managed?") | |
617 | && !path_exist(_PATH_PROC_DEVICETREE "/chosen/qemu,graphic-width")) { | |
618 | FILE *fd; | |
619 | desc->hyper = HYPER_PHYP; | |
620 | desc->virtype = VIRT_PARA; | |
621 | fd = path_fopen("r", 0, _PATH_PROC_DEVICETREE "/ibm,partition-name"); | |
622 | if (fd) { | |
623 | char buf[256]; | |
6cbf75e5 | 624 | if (fscanf(fd, "%255s", buf) == 1 && !strcmp(buf, "full")) |
5bd31c6d RM |
625 | desc->virtype = VIRT_NONE; |
626 | fclose(fd); | |
627 | } | |
628 | } else if (path_exist(_PATH_PROC_DEVICETREE "/hypervisor/compatible")) { | |
629 | FILE *fd; | |
630 | fd = path_fopen("r", 0, _PATH_PROC_DEVICETREE "/hypervisor/compatible"); | |
631 | if (fd) { | |
632 | char buf[256]; | |
633 | size_t i, len; | |
634 | memset(buf, 0, sizeof(buf)); | |
635 | len = fread(buf, 1, sizeof(buf) - 1, fd); | |
636 | fclose(fd); | |
637 | for (i = 0; i < len;) { | |
638 | if (!strcmp(&buf[i], "linux,kvm")) { | |
639 | desc->hyper = HYPER_KVM; | |
640 | desc->virtype = VIRT_FULL; | |
641 | break; | |
642 | } | |
643 | i += strlen(&buf[i]); | |
644 | i++; | |
645 | } | |
646 | } | |
647 | } | |
648 | ||
649 | return desc->hyper; | |
650 | } | |
651 | ||
b7744730 RM |
652 | #ifdef INCLUDE_VMWARE_BDOOR |
653 | ||
654 | #define VMWARE_BDOOR_MAGIC 0x564D5868 | |
655 | #define VMWARE_BDOOR_PORT 0x5658 | |
656 | #define VMWARE_BDOOR_CMD_GETVERSION 10 | |
657 | ||
7845b91d MF |
658 | static inline |
659 | void vmware_bdoor(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx) | |
660 | { | |
661 | __asm__( | |
662 | #if defined(__PIC__) && defined(__i386__) | |
663 | /* x86 PIC cannot clobber ebx -- gcc bitches */ | |
664 | "xchg %%ebx, %%esi;" | |
665 | "inl (%%dx), %%eax;" | |
666 | "xchg %%esi, %%ebx;" | |
667 | : "=S" (*ebx), | |
668 | #else | |
669 | "inl (%%dx), %%eax;" | |
670 | : "=b" (*ebx), | |
671 | #endif | |
672 | "=a" (*eax), | |
673 | "=c" (*ecx), | |
674 | "=d" (*edx) | |
675 | : "0" (VMWARE_BDOOR_MAGIC), | |
676 | "1" (VMWARE_BDOOR_CMD_GETVERSION), | |
677 | "2" (VMWARE_BDOOR_PORT), | |
678 | "3" (0) | |
679 | : "memory"); | |
680 | } | |
b7744730 RM |
681 | |
682 | static jmp_buf segv_handler_env; | |
683 | ||
684 | static void | |
685 | segv_handler(__attribute__((__unused__)) int sig, | |
686 | __attribute__((__unused__)) siginfo_t *info, | |
687 | __attribute__((__unused__)) void *ignored) | |
688 | { | |
689 | siglongjmp(segv_handler_env, 1); | |
690 | } | |
691 | ||
692 | static int | |
693 | is_vmware_platform(void) | |
694 | { | |
695 | uint32_t eax, ebx, ecx, edx; | |
696 | struct sigaction act, oact; | |
697 | ||
698 | /* | |
699 | * The assembly routine for vmware detection works | |
700 | * fine under vmware, even if ran as regular user. But | |
701 | * on real HW or under other hypervisors, it segfaults (which is | |
702 | * expected). So we temporarily install SIGSEGV handler to catch | |
703 | * the signal. All this magic is needed because lscpu | |
704 | * isn't supposed to require root privileges. | |
705 | */ | |
706 | if (sigsetjmp(segv_handler_env, 1)) | |
707 | return 0; | |
708 | ||
9dd2d497 | 709 | memset(&act, 0, sizeof(act)); |
b7744730 RM |
710 | act.sa_sigaction = segv_handler; |
711 | act.sa_flags = SA_SIGINFO; | |
712 | ||
713 | if (sigaction(SIGSEGV, &act, &oact)) | |
714 | err(EXIT_FAILURE, _("error: can not set signal handler")); | |
715 | ||
7845b91d | 716 | vmware_bdoor(&eax, &ebx, &ecx, &edx); |
b7744730 RM |
717 | |
718 | if (sigaction(SIGSEGV, &oact, NULL)) | |
719 | err(EXIT_FAILURE, _("error: can not restore signal handler")); | |
720 | ||
721 | return eax != (uint32_t)-1 && ebx == VMWARE_BDOOR_MAGIC; | |
722 | } | |
723 | ||
724 | #else /* ! INCLUDE_VMWARE_BDOOR */ | |
725 | ||
726 | static int | |
727 | is_vmware_platform(void) | |
728 | { | |
729 | return 0; | |
730 | } | |
731 | ||
732 | #endif /* INCLUDE_VMWARE_BDOOR */ | |
733 | ||
c8b64f6d | 734 | static void |
eff79ceb | 735 | read_hypervisor(struct lscpu_desc *desc, struct lscpu_modifier *mod) |
c8b64f6d | 736 | { |
fb2627ce OO |
737 | FILE *fd; |
738 | ||
739 | if (mod->system != SYSTEM_SNAPSHOT) { | |
eff79ceb | 740 | read_hypervisor_cpuid(desc); |
fb2627ce OO |
741 | if (!desc->hyper) |
742 | desc->hyper = read_hypervisor_dmi(); | |
b7744730 RM |
743 | if (!desc->hyper && is_vmware_platform()) |
744 | desc->hyper = HYPER_VMWARE; | |
fb2627ce | 745 | } |
c8b64f6d | 746 | |
e8aa16ee | 747 | if (desc->hyper) |
e8aa16ee | 748 | desc->virtype = VIRT_FULL; |
c8b64f6d | 749 | |
5bd31c6d RM |
750 | else if (read_hypervisor_powerpc(desc) > 0) {} |
751 | ||
fb2627ce | 752 | /* Xen para-virt or dom0 */ |
d50363cd | 753 | else if (path_exist(_PATH_PROC_XEN)) { |
c8b64f6d | 754 | int dom0 = 0; |
fb2627ce | 755 | fd = path_fopen("r", 0, _PATH_PROC_XENCAP); |
c8b64f6d KZ |
756 | |
757 | if (fd) { | |
758 | char buf[256]; | |
759 | ||
6cbf75e5 | 760 | if (fscanf(fd, "%255s", buf) == 1 && |
c8b64f6d KZ |
761 | !strcmp(buf, "control_d")) |
762 | dom0 = 1; | |
763 | fclose(fd); | |
764 | } | |
e8aa16ee KZ |
765 | desc->virtype = dom0 ? VIRT_NONE : VIRT_PARA; |
766 | desc->hyper = HYPER_XEN; | |
c8b64f6d | 767 | |
fb2627ce | 768 | /* Xen full-virt on non-x86_64 */ |
96ce475f | 769 | } else if (has_pci_device( hv_vendor_pci[HYPER_XEN], hv_graphics_pci[HYPER_XEN])) { |
e8aa16ee KZ |
770 | desc->hyper = HYPER_XEN; |
771 | desc->virtype = VIRT_FULL; | |
96ce475f RM |
772 | } else if (has_pci_device( hv_vendor_pci[HYPER_VMWARE], hv_graphics_pci[HYPER_VMWARE])) { |
773 | desc->hyper = HYPER_VMWARE; | |
774 | desc->virtype = VIRT_FULL; | |
775 | } else if (has_pci_device( hv_vendor_pci[HYPER_VBOX], hv_graphics_pci[HYPER_VBOX])) { | |
776 | desc->hyper = HYPER_VBOX; | |
777 | desc->virtype = VIRT_FULL; | |
fb2627ce OO |
778 | |
779 | /* IBM PR/SM */ | |
b8ec7bdf | 780 | } else if (path_exist(_PATH_PROC_SYSINFO)) { |
145a3ca3 | 781 | FILE *sysinfo_fd = path_fopen("r", 0, _PATH_PROC_SYSINFO); |
b8ec7bdf HC |
782 | char buf[BUFSIZ]; |
783 | ||
145a3ca3 | 784 | if (!sysinfo_fd) |
b3eff5dd | 785 | return; |
b8ec7bdf | 786 | desc->hyper = HYPER_IBM; |
10829cd7 | 787 | desc->hypervisor = "PR/SM"; |
b8ec7bdf | 788 | desc->virtype = VIRT_FULL; |
145a3ca3 | 789 | while (fgets(buf, sizeof(buf), sysinfo_fd) != NULL) { |
10829cd7 HC |
790 | char *str; |
791 | ||
b8ec7bdf HC |
792 | if (!strstr(buf, "Control Program:")) |
793 | continue; | |
794 | if (!strstr(buf, "KVM")) | |
795 | desc->hyper = HYPER_IBM; | |
796 | else | |
797 | desc->hyper = HYPER_KVM; | |
10829cd7 HC |
798 | str = strchr(buf, ':'); |
799 | if (!str) | |
800 | continue; | |
9d8537ff KZ |
801 | xasprintf(&str, "%s", str + 1); |
802 | ||
10829cd7 HC |
803 | /* remove leading, trailing and repeating whitespace */ |
804 | while (*str == ' ') | |
805 | str++; | |
806 | desc->hypervisor = str; | |
807 | str += strlen(str) - 1; | |
808 | while ((*str == '\n') || (*str == ' ')) | |
809 | *(str--) = '\0'; | |
810 | while ((str = strstr(desc->hypervisor, " "))) | |
811 | memmove(str, str + 1, strlen(str)); | |
b8ec7bdf | 812 | } |
145a3ca3 | 813 | fclose(sysinfo_fd); |
c8b64f6d | 814 | } |
fb2627ce OO |
815 | |
816 | /* OpenVZ/Virtuozzo - /proc/vz dir should exist | |
817 | * /proc/bc should not */ | |
857d9cdf | 818 | else if (path_exist(_PATH_PROC_VZ) && !path_exist(_PATH_PROC_BC)) { |
fb2627ce | 819 | desc->hyper = HYPER_PARALLELS; |
857d9cdf | 820 | desc->virtype = VIRT_CONT; |
fb2627ce OO |
821 | |
822 | /* IBM */ | |
857d9cdf | 823 | } else if (desc->vendor && |
fb2627ce | 824 | (strcmp(desc->vendor, "PowerVM Lx86") == 0 || |
857d9cdf | 825 | strcmp(desc->vendor, "IBM/S390") == 0)) { |
fb2627ce | 826 | desc->hyper = HYPER_IBM; |
857d9cdf | 827 | desc->virtype = VIRT_FULL; |
fb2627ce OO |
828 | |
829 | /* User-mode-linux */ | |
857d9cdf | 830 | } else if (desc->modelname && strstr(desc->modelname, "UML")) { |
fb2627ce | 831 | desc->hyper = HYPER_UML; |
857d9cdf | 832 | desc->virtype = VIRT_PARA; |
fb2627ce OO |
833 | |
834 | /* Linux-VServer */ | |
857d9cdf | 835 | } else if (path_exist(_PATH_PROC_STATUS)) { |
fb2627ce OO |
836 | char buf[BUFSIZ]; |
837 | char *val = NULL; | |
838 | ||
dbbf8395 | 839 | fd = path_fopen("r", 1, _PATH_PROC_STATUS); |
fb2627ce OO |
840 | while (fgets(buf, sizeof(buf), fd) != NULL) { |
841 | if (lookup(buf, "VxID", &val)) | |
842 | break; | |
843 | } | |
844 | fclose(fd); | |
845 | ||
846 | if (val) { | |
847 | while (isdigit(*val)) | |
848 | ++val; | |
857d9cdf | 849 | if (!*val) { |
fb2627ce | 850 | desc->hyper = HYPER_VSERVER; |
857d9cdf KZ |
851 | desc->virtype = VIRT_CONT; |
852 | } | |
fb2627ce OO |
853 | } |
854 | } | |
c8b64f6d KZ |
855 | } |
856 | ||
455fe9a0 | 857 | /* add @set to the @ary, unnecessary set is deallocated. */ |
7e03f383 KZ |
858 | static int add_cpuset_to_array(cpu_set_t **ary, int *items, cpu_set_t *set) |
859 | { | |
860 | int i; | |
861 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); | |
862 | ||
863 | if (!ary) | |
864 | return -1; | |
865 | ||
866 | for (i = 0; i < *items; i++) { | |
867 | if (CPU_EQUAL_S(setsize, set, ary[i])) | |
868 | break; | |
869 | } | |
870 | if (i == *items) { | |
871 | ary[*items] = set; | |
872 | ++*items; | |
873 | return 0; | |
874 | } | |
875 | CPU_FREE(set); | |
876 | return 1; | |
877 | } | |
878 | ||
5dd7507c | 879 | static void |
4f642863 | 880 | read_topology(struct lscpu_desc *desc, int idx) |
5dd7507c | 881 | { |
56baaa4e | 882 | cpu_set_t *thread_siblings, *core_siblings, *book_siblings; |
4f642863 | 883 | int num = real_cpu_num(desc, idx); |
7e03f383 KZ |
884 | |
885 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/topology/thread_siblings", num)) | |
886 | return; | |
5dd7507c | 887 | |
ca01695b | 888 | thread_siblings = path_read_cpuset(maxcpus, _PATH_SYS_CPU |
7e03f383 | 889 | "/cpu%d/topology/thread_siblings", num); |
ca01695b | 890 | core_siblings = path_read_cpuset(maxcpus, _PATH_SYS_CPU |
7e03f383 | 891 | "/cpu%d/topology/core_siblings", num); |
56baaa4e | 892 | book_siblings = NULL; |
4f642863 | 893 | if (path_exist(_PATH_SYS_CPU "/cpu%d/topology/book_siblings", num)) |
ca01695b | 894 | book_siblings = path_read_cpuset(maxcpus, _PATH_SYS_CPU |
56baaa4e | 895 | "/cpu%d/topology/book_siblings", num); |
aac1e59e KZ |
896 | |
897 | if (!desc->coremaps) { | |
56baaa4e | 898 | int nbooks, nsockets, ncores, nthreads; |
7e03f383 KZ |
899 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); |
900 | ||
901 | /* threads within one core */ | |
902 | nthreads = CPU_COUNT_S(setsize, thread_siblings); | |
d4bfa64d KZ |
903 | if (!nthreads) |
904 | nthreads = 1; | |
905 | ||
7e03f383 KZ |
906 | /* cores within one socket */ |
907 | ncores = CPU_COUNT_S(setsize, core_siblings) / nthreads; | |
d4bfa64d KZ |
908 | if (!ncores) |
909 | ncores = 1; | |
910 | ||
911 | /* number of sockets within one book. Because of odd / | |
912 | * non-present cpu maps and to keep calculation easy we make | |
913 | * sure that nsockets and nbooks is at least 1. | |
32a46618 | 914 | */ |
d4bfa64d KZ |
915 | nsockets = desc->ncpus / nthreads / ncores; |
916 | if (!nsockets) | |
917 | nsockets = 1; | |
918 | ||
56baaa4e | 919 | /* number of books */ |
d4bfa64d KZ |
920 | nbooks = desc->ncpus / nthreads / ncores / nsockets; |
921 | if (!nbooks) | |
922 | nbooks = 1; | |
e282eec2 KZ |
923 | |
924 | /* all threads, see also read_basicinfo() | |
32a46618 | 925 | * -- fallback for kernels without |
e282eec2 KZ |
926 | * /sys/devices/system/cpu/online. |
927 | */ | |
928 | if (!desc->nthreads) | |
32a46618 | 929 | desc->nthreads = nbooks * nsockets * ncores * nthreads; |
d4bfa64d | 930 | |
a5cfffff | 931 | /* For each map we make sure that it can have up to ncpuspos |
9d1a3a18 HC |
932 | * entries. This is because we cannot reliably calculate the |
933 | * number of cores, sockets and books on all architectures. | |
934 | * E.g. completely virtualized architectures like s390 may | |
935 | * have multiple sockets of different sizes. | |
936 | */ | |
a5cfffff TK |
937 | desc->coremaps = xcalloc(desc->ncpuspos, sizeof(cpu_set_t *)); |
938 | desc->socketmaps = xcalloc(desc->ncpuspos, sizeof(cpu_set_t *)); | |
08de16d0 | 939 | if (book_siblings) |
a5cfffff | 940 | desc->bookmaps = xcalloc(desc->ncpuspos, sizeof(cpu_set_t *)); |
7e03f383 | 941 | } |
5dd7507c | 942 | |
7e03f383 KZ |
943 | add_cpuset_to_array(desc->socketmaps, &desc->nsockets, core_siblings); |
944 | add_cpuset_to_array(desc->coremaps, &desc->ncores, thread_siblings); | |
56baaa4e HC |
945 | if (book_siblings) |
946 | add_cpuset_to_array(desc->bookmaps, &desc->nbooks, book_siblings); | |
7e03f383 | 947 | } |
4f642863 | 948 | |
2b8fcb81 | 949 | static void |
4f642863 | 950 | read_polarization(struct lscpu_desc *desc, int idx) |
2b8fcb81 HC |
951 | { |
952 | char mode[64]; | |
4f642863 | 953 | int num = real_cpu_num(desc, idx); |
2b8fcb81 HC |
954 | |
955 | if (desc->dispatching < 0) | |
956 | return; | |
957 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/polarization", num)) | |
958 | return; | |
959 | if (!desc->polarization) | |
a5cfffff | 960 | desc->polarization = xcalloc(desc->ncpuspos, sizeof(int)); |
ca01695b | 961 | path_read_str(mode, sizeof(mode), _PATH_SYS_CPU "/cpu%d/polarization", num); |
2b8fcb81 | 962 | if (strncmp(mode, "vertical:low", sizeof(mode)) == 0) |
4f642863 | 963 | desc->polarization[idx] = POLAR_VLOW; |
2b8fcb81 | 964 | else if (strncmp(mode, "vertical:medium", sizeof(mode)) == 0) |
4f642863 | 965 | desc->polarization[idx] = POLAR_VMEDIUM; |
2b8fcb81 | 966 | else if (strncmp(mode, "vertical:high", sizeof(mode)) == 0) |
4f642863 | 967 | desc->polarization[idx] = POLAR_VHIGH; |
2b8fcb81 | 968 | else if (strncmp(mode, "horizontal", sizeof(mode)) == 0) |
4f642863 | 969 | desc->polarization[idx] = POLAR_HORIZONTAL; |
2b8fcb81 | 970 | else |
4f642863 | 971 | desc->polarization[idx] = POLAR_UNKNOWN; |
2b8fcb81 | 972 | } |
7e03f383 | 973 | |
596b8845 | 974 | static void |
4f642863 | 975 | read_address(struct lscpu_desc *desc, int idx) |
596b8845 | 976 | { |
4f642863 AT |
977 | int num = real_cpu_num(desc, idx); |
978 | ||
596b8845 HC |
979 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/address", num)) |
980 | return; | |
981 | if (!desc->addresses) | |
a5cfffff | 982 | desc->addresses = xcalloc(desc->ncpuspos, sizeof(int)); |
4f642863 | 983 | desc->addresses[idx] = path_read_s32(_PATH_SYS_CPU "/cpu%d/address", num); |
596b8845 | 984 | } |
7e03f383 | 985 | |
d231eea1 | 986 | static void |
4f642863 | 987 | read_configured(struct lscpu_desc *desc, int idx) |
d231eea1 | 988 | { |
4f642863 AT |
989 | int num = real_cpu_num(desc, idx); |
990 | ||
d231eea1 HC |
991 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/configure", num)) |
992 | return; | |
993 | if (!desc->configured) | |
a5cfffff | 994 | desc->configured = xcalloc(desc->ncpuspos, sizeof(int)); |
4f642863 | 995 | desc->configured[idx] = path_read_s32(_PATH_SYS_CPU "/cpu%d/configure", num); |
d231eea1 HC |
996 | } |
997 | ||
44320710 | 998 | static void |
4f642863 | 999 | read_max_mhz(struct lscpu_desc *desc, int idx) |
44320710 | 1000 | { |
4f642863 AT |
1001 | int num = real_cpu_num(desc, idx); |
1002 | ||
44320710 SK |
1003 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/cpufreq/cpuinfo_max_freq", num)) |
1004 | return; | |
e065a597 DB |
1005 | if (!desc->maxmhz) |
1006 | desc->maxmhz = xcalloc(desc->ncpuspos, sizeof(char *)); | |
4f642863 | 1007 | xasprintf(&(desc->maxmhz[idx]), "%.4f", |
44320710 SK |
1008 | (float)path_read_s32(_PATH_SYS_CPU |
1009 | "/cpu%d/cpufreq/cpuinfo_max_freq", num) / 1000); | |
1010 | } | |
1011 | ||
e065a597 | 1012 | static void |
4f642863 | 1013 | read_min_mhz(struct lscpu_desc *desc, int idx) |
e065a597 | 1014 | { |
4f642863 AT |
1015 | int num = real_cpu_num(desc, idx); |
1016 | ||
e065a597 DB |
1017 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/cpufreq/cpuinfo_min_freq", num)) |
1018 | return; | |
1019 | if (!desc->minmhz) | |
1020 | desc->minmhz = xcalloc(desc->ncpuspos, sizeof(char *)); | |
4f642863 | 1021 | xasprintf(&(desc->minmhz[idx]), "%.4f", |
e065a597 DB |
1022 | (float)path_read_s32(_PATH_SYS_CPU |
1023 | "/cpu%d/cpufreq/cpuinfo_min_freq", num) / 1000); | |
1024 | } | |
1025 | ||
7e03f383 KZ |
1026 | static int |
1027 | cachecmp(const void *a, const void *b) | |
1028 | { | |
1029 | struct cpu_cache *c1 = (struct cpu_cache *) a; | |
1030 | struct cpu_cache *c2 = (struct cpu_cache *) b; | |
1031 | ||
1032 | return strcmp(c2->name, c1->name); | |
5dd7507c CQ |
1033 | } |
1034 | ||
1035 | static void | |
4f642863 | 1036 | read_cache(struct lscpu_desc *desc, int idx) |
5dd7507c CQ |
1037 | { |
1038 | char buf[256]; | |
7e03f383 | 1039 | int i; |
4f642863 | 1040 | int num = real_cpu_num(desc, idx); |
5dd7507c | 1041 | |
aac1e59e | 1042 | if (!desc->ncaches) { |
1d56b55e | 1043 | while(path_exist(_PATH_SYS_CPU "/cpu%d/cache/index%d", |
7e03f383 KZ |
1044 | num, desc->ncaches)) |
1045 | desc->ncaches++; | |
5dd7507c | 1046 | |
7e03f383 KZ |
1047 | if (!desc->ncaches) |
1048 | return; | |
5dd7507c | 1049 | |
08de16d0 | 1050 | desc->caches = xcalloc(desc->ncaches, sizeof(*desc->caches)); |
7e03f383 KZ |
1051 | } |
1052 | for (i = 0; i < desc->ncaches; i++) { | |
1053 | struct cpu_cache *ca = &desc->caches[i]; | |
1054 | cpu_set_t *map; | |
1055 | ||
1d56b55e | 1056 | if (!path_exist(_PATH_SYS_CPU "/cpu%d/cache/index%d", |
dcdead42 HC |
1057 | num, i)) |
1058 | continue; | |
7e03f383 KZ |
1059 | if (!ca->name) { |
1060 | int type, level; | |
1061 | ||
1062 | /* cache type */ | |
ca01695b | 1063 | path_read_str(buf, sizeof(buf), |
7e03f383 KZ |
1064 | _PATH_SYS_CPU "/cpu%d/cache/index%d/type", |
1065 | num, i); | |
1066 | if (!strcmp(buf, "Data")) | |
1067 | type = 'd'; | |
1068 | else if (!strcmp(buf, "Instruction")) | |
1069 | type = 'i'; | |
1070 | else | |
1071 | type = 0; | |
1072 | ||
1073 | /* cache level */ | |
ca01695b | 1074 | level = path_read_s32(_PATH_SYS_CPU "/cpu%d/cache/index%d/level", |
7e03f383 KZ |
1075 | num, i); |
1076 | if (type) | |
1077 | snprintf(buf, sizeof(buf), "L%d%c", level, type); | |
1078 | else | |
1079 | snprintf(buf, sizeof(buf), "L%d", level); | |
1080 | ||
1081 | ca->name = xstrdup(buf); | |
1082 | ||
1083 | /* cache size */ | |
10d927ab RM |
1084 | if (path_exist(_PATH_SYS_CPU "/cpu%d/cache/index%d/size",num, i)) { |
1085 | path_read_str(buf, sizeof(buf), | |
1086 | _PATH_SYS_CPU "/cpu%d/cache/index%d/size", num, i); | |
1087 | ca->size = xstrdup(buf); | |
1088 | } else { | |
1089 | ca->size = xstrdup("unknown size"); | |
1090 | } | |
7e03f383 | 1091 | } |
5dd7507c | 1092 | |
7e03f383 | 1093 | /* information about how CPUs share different caches */ |
ca01695b | 1094 | map = path_read_cpuset(maxcpus, |
8148217b HC |
1095 | _PATH_SYS_CPU "/cpu%d/cache/index%d/shared_cpu_map", |
1096 | num, i); | |
5dd7507c | 1097 | |
08de16d0 | 1098 | if (!ca->sharedmaps) |
a5cfffff | 1099 | ca->sharedmaps = xcalloc(desc->ncpuspos, sizeof(cpu_set_t *)); |
7e03f383 | 1100 | add_cpuset_to_array(ca->sharedmaps, &ca->nsharedmaps, map); |
5dd7507c CQ |
1101 | } |
1102 | } | |
1103 | ||
e9074a16 KZ |
1104 | static inline int is_node_dirent(struct dirent *d) |
1105 | { | |
1106 | return | |
1107 | d && | |
1108 | #ifdef _DIRENT_HAVE_D_TYPE | |
c0cf4ae9 | 1109 | (d->d_type == DT_DIR || d->d_type == DT_UNKNOWN) && |
e9074a16 KZ |
1110 | #endif |
1111 | strncmp(d->d_name, "node", 4) == 0 && | |
1112 | isdigit_string(d->d_name + 4); | |
1113 | } | |
1114 | ||
39c758d1 KZ |
1115 | static int |
1116 | nodecmp(const void *ap, const void *bp) | |
1117 | { | |
1118 | int *a = (int *) ap, *b = (int *) bp; | |
1119 | return *a - *b; | |
1120 | } | |
1121 | ||
5dd7507c | 1122 | static void |
e8aa16ee | 1123 | read_nodes(struct lscpu_desc *desc) |
5dd7507c | 1124 | { |
e9074a16 KZ |
1125 | int i = 0; |
1126 | DIR *dir; | |
1127 | struct dirent *d; | |
1128 | char *path; | |
5dd7507c CQ |
1129 | |
1130 | /* number of NUMA node */ | |
e9074a16 KZ |
1131 | path = path_strdup(_PATH_SYS_NODE); |
1132 | dir = opendir(path); | |
1133 | free(path); | |
7e03f383 | 1134 | |
e9074a16 KZ |
1135 | while (dir && (d = readdir(dir))) { |
1136 | if (is_node_dirent(d)) | |
1137 | desc->nnodes++; | |
1138 | } | |
1139 | ||
1140 | if (!desc->nnodes) { | |
1141 | if (dir) | |
1142 | closedir(dir); | |
7e03f383 | 1143 | return; |
e9074a16 | 1144 | } |
5dd7507c | 1145 | |
08de16d0 | 1146 | desc->nodemaps = xcalloc(desc->nnodes, sizeof(cpu_set_t *)); |
e9074a16 KZ |
1147 | desc->idx2nodenum = xmalloc(desc->nnodes * sizeof(int)); |
1148 | ||
1149 | if (dir) { | |
1150 | rewinddir(dir); | |
1151 | while ((d = readdir(dir)) && i < desc->nnodes) { | |
1152 | if (is_node_dirent(d)) | |
1153 | desc->idx2nodenum[i++] = strtol_or_err(((d->d_name) + 4), | |
1154 | _("Failed to extract the node number")); | |
1155 | } | |
1156 | closedir(dir); | |
39c758d1 | 1157 | qsort(desc->idx2nodenum, desc->nnodes, sizeof(int), nodecmp); |
e9074a16 | 1158 | } |
5dd7507c CQ |
1159 | |
1160 | /* information about how nodes share different CPUs */ | |
7e03f383 | 1161 | for (i = 0; i < desc->nnodes; i++) |
ca01695b | 1162 | desc->nodemaps[i] = path_read_cpuset(maxcpus, |
1d56b55e | 1163 | _PATH_SYS_NODE "/node%d/cpumap", |
e9074a16 | 1164 | desc->idx2nodenum[i]); |
5dd7507c CQ |
1165 | } |
1166 | ||
e3b3a2f3 | 1167 | static char * |
4f642863 | 1168 | get_cell_data(struct lscpu_desc *desc, int idx, int col, |
e3b3a2f3 KZ |
1169 | struct lscpu_modifier *mod, |
1170 | char *buf, size_t bufsz) | |
5dd7507c | 1171 | { |
7e03f383 | 1172 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); |
4f642863 AT |
1173 | size_t i; |
1174 | int cpu = real_cpu_num(desc, idx); | |
e3b3a2f3 KZ |
1175 | |
1176 | *buf = '\0'; | |
5dd7507c | 1177 | |
477251f8 KZ |
1178 | switch (col) { |
1179 | case COL_CPU: | |
e3b3a2f3 | 1180 | snprintf(buf, bufsz, "%d", cpu); |
477251f8 KZ |
1181 | break; |
1182 | case COL_CORE: | |
e9d659ea | 1183 | if (cpuset_ary_isset(cpu, desc->coremaps, |
4f642863 | 1184 | desc->ncores, setsize, &i) == 0) |
73f2bec5 | 1185 | snprintf(buf, bufsz, "%zu", i); |
477251f8 KZ |
1186 | break; |
1187 | case COL_SOCKET: | |
e9d659ea | 1188 | if (cpuset_ary_isset(cpu, desc->socketmaps, |
4f642863 | 1189 | desc->nsockets, setsize, &i) == 0) |
73f2bec5 | 1190 | snprintf(buf, bufsz, "%zu", i); |
477251f8 KZ |
1191 | break; |
1192 | case COL_NODE: | |
e9d659ea | 1193 | if (cpuset_ary_isset(cpu, desc->nodemaps, |
4f642863 | 1194 | desc->nnodes, setsize, &i) == 0) |
e9074a16 | 1195 | snprintf(buf, bufsz, "%d", desc->idx2nodenum[i]); |
477251f8 KZ |
1196 | break; |
1197 | case COL_BOOK: | |
e9d659ea | 1198 | if (cpuset_ary_isset(cpu, desc->bookmaps, |
4f642863 | 1199 | desc->nbooks, setsize, &i) == 0) |
73f2bec5 | 1200 | snprintf(buf, bufsz, "%zu", i); |
477251f8 KZ |
1201 | break; |
1202 | case COL_CACHE: | |
e3b3a2f3 KZ |
1203 | { |
1204 | char *p = buf; | |
1205 | size_t sz = bufsz; | |
1206 | int j; | |
1207 | ||
7e03f383 KZ |
1208 | for (j = desc->ncaches - 1; j >= 0; j--) { |
1209 | struct cpu_cache *ca = &desc->caches[j]; | |
e9d659ea KZ |
1210 | |
1211 | if (cpuset_ary_isset(cpu, ca->sharedmaps, | |
4f642863 | 1212 | ca->nsharedmaps, setsize, &i) == 0) { |
73f2bec5 | 1213 | int x = snprintf(p, sz, "%zu", i); |
e3b3a2f3 KZ |
1214 | if (x <= 0 || (size_t) x + 2 >= sz) |
1215 | return NULL; | |
1216 | p += x; | |
1217 | sz -= x; | |
1218 | } | |
1219 | if (j != 0) { | |
1220 | *p++ = mod->compat ? ',' : ':'; | |
1221 | *p = '\0'; | |
1222 | sz++; | |
1223 | } | |
5dd7507c | 1224 | } |
477251f8 | 1225 | break; |
e3b3a2f3 | 1226 | } |
2b8fcb81 | 1227 | case COL_POLARIZATION: |
ba45d8c1 | 1228 | if (desc->polarization) { |
4f642863 | 1229 | int x = desc->polarization[idx]; |
ba45d8c1 | 1230 | |
e3b3a2f3 | 1231 | snprintf(buf, bufsz, "%s", |
ba45d8c1 KZ |
1232 | mod->mode == OUTPUT_PARSABLE ? |
1233 | polar_modes[x].parsable : | |
1234 | polar_modes[x].readable); | |
1235 | } | |
2b8fcb81 | 1236 | break; |
596b8845 HC |
1237 | case COL_ADDRESS: |
1238 | if (desc->addresses) | |
4f642863 | 1239 | snprintf(buf, bufsz, "%d", desc->addresses[idx]); |
596b8845 | 1240 | break; |
d231eea1 | 1241 | case COL_CONFIGURED: |
e43fc13e HC |
1242 | if (!desc->configured) |
1243 | break; | |
1244 | if (mod->mode == OUTPUT_PARSABLE) | |
d231eea1 | 1245 | snprintf(buf, bufsz, |
4f642863 | 1246 | desc->configured[idx] ? _("Y") : _("N")); |
e43fc13e HC |
1247 | else |
1248 | snprintf(buf, bufsz, | |
4f642863 | 1249 | desc->configured[idx] ? _("yes") : _("no")); |
d231eea1 | 1250 | break; |
a7e5300c | 1251 | case COL_ONLINE: |
e43fc13e HC |
1252 | if (!desc->online) |
1253 | break; | |
1254 | if (mod->mode == OUTPUT_PARSABLE) | |
1255 | snprintf(buf, bufsz, | |
1256 | is_cpu_online(desc, cpu) ? _("Y") : _("N")); | |
1257 | else | |
1258 | snprintf(buf, bufsz, | |
847b982e | 1259 | is_cpu_online(desc, cpu) ? _("yes") : _("no")); |
a7e5300c | 1260 | break; |
e065a597 DB |
1261 | case COL_MAXMHZ: |
1262 | if (desc->maxmhz) | |
4f642863 | 1263 | xstrncpy(buf, desc->maxmhz[idx], bufsz); |
e065a597 DB |
1264 | break; |
1265 | case COL_MINMHZ: | |
1266 | if (desc->minmhz) | |
4f642863 | 1267 | xstrncpy(buf, desc->minmhz[idx], bufsz); |
44320710 | 1268 | break; |
477251f8 | 1269 | } |
e3b3a2f3 KZ |
1270 | return buf; |
1271 | } | |
1272 | ||
1273 | static char * | |
1274 | get_cell_header(struct lscpu_desc *desc, int col, | |
1275 | struct lscpu_modifier *mod, | |
1276 | char *buf, size_t bufsz) | |
1277 | { | |
1278 | *buf = '\0'; | |
1279 | ||
1280 | if (col == COL_CACHE) { | |
1281 | char *p = buf; | |
1282 | size_t sz = bufsz; | |
1283 | int i; | |
1284 | ||
1285 | for (i = desc->ncaches - 1; i >= 0; i--) { | |
1286 | int x = snprintf(p, sz, "%s", desc->caches[i].name); | |
1287 | if (x <= 0 || (size_t) x + 2 > sz) | |
1288 | return NULL; | |
1289 | sz -= x; | |
1290 | p += x; | |
1291 | if (i > 0) { | |
1292 | *p++ = mod->compat ? ',' : ':'; | |
1293 | *p = '\0'; | |
1294 | sz++; | |
1295 | } | |
1296 | } | |
1297 | if (desc->ncaches) | |
1298 | return buf; | |
1299 | } | |
756d79cd | 1300 | snprintf(buf, bufsz, "%s", coldescs[col].name); |
e3b3a2f3 | 1301 | return buf; |
477251f8 KZ |
1302 | } |
1303 | ||
1304 | /* | |
ba45d8c1 | 1305 | * [-p] backend, we support two parsable formats: |
477251f8 KZ |
1306 | * |
1307 | * 1) "compatible" -- this format is compatible with the original lscpu(1) | |
1308 | * output and it contains fixed set of the columns. The CACHE columns are at | |
1309 | * the end of the line and the CACHE is not printed if the number of the caches | |
1310 | * is zero. The CACHE columns are separated by two commas, for example: | |
1311 | * | |
1312 | * $ lscpu --parse | |
1313 | * # CPU,Core,Socket,Node,,L1d,L1i,L2 | |
1314 | * 0,0,0,0,,0,0,0 | |
1315 | * 1,1,0,0,,1,1,0 | |
1316 | * | |
1317 | * 2) "user defined output" -- this format prints always all columns without | |
1318 | * special prefix for CACHE column. If there are not CACHEs then the column is | |
1319 | * empty and the header "Cache" is printed rather than a real name of the cache. | |
1320 | * The CACHE columns are separated by ':'. | |
1321 | * | |
1322 | * $ lscpu --parse=CPU,CORE,SOCKET,NODE,CACHE | |
1323 | * # CPU,Core,Socket,Node,L1d:L1i:L2 | |
1324 | * 0,0,0,0,0:0:0 | |
1325 | * 1,1,0,0,1:1:0 | |
1326 | */ | |
1327 | static void | |
8005924a KZ |
1328 | print_parsable(struct lscpu_desc *desc, int cols[], int ncols, |
1329 | struct lscpu_modifier *mod) | |
477251f8 | 1330 | { |
e3b3a2f3 KZ |
1331 | char buf[BUFSIZ], *data; |
1332 | int i; | |
477251f8 | 1333 | |
e3b3a2f3 KZ |
1334 | /* |
1335 | * Header | |
1336 | */ | |
477251f8 KZ |
1337 | printf(_( |
1338 | "# The following is the parsable format, which can be fed to other\n" | |
1339 | "# programs. Each different item in every column has an unique ID\n" | |
1340 | "# starting from zero.\n")); | |
1341 | ||
1342 | fputs("# ", stdout); | |
1343 | for (i = 0; i < ncols; i++) { | |
3d27b76a | 1344 | int col = cols[i]; |
b9d18bc3 | 1345 | |
3d27b76a | 1346 | if (col == COL_CACHE) { |
8005924a | 1347 | if (mod->compat && !desc->ncaches) |
477251f8 | 1348 | continue; |
8005924a | 1349 | if (mod->compat && i != 0) |
477251f8 | 1350 | putchar(','); |
477251f8 | 1351 | } |
e3b3a2f3 KZ |
1352 | if (i > 0) |
1353 | putchar(','); | |
1354 | ||
3d27b76a | 1355 | data = get_cell_header(desc, col, mod, buf, sizeof(buf)); |
b9d18bc3 | 1356 | |
3d27b76a KZ |
1357 | if (data && * data && col != COL_CACHE && |
1358 | !coldescs[col].is_abbr) { | |
1359 | /* | |
1360 | * For normal column names use mixed case (e.g. "Socket") | |
1361 | */ | |
1362 | char *p = data + 1; | |
1363 | ||
14e8be8a PU |
1364 | while (p && *p != '\0') { |
1365 | *p = tolower((unsigned int) *p); | |
1366 | p++; | |
1367 | } | |
3d27b76a | 1368 | } |
e3b3a2f3 | 1369 | fputs(data && *data ? data : "", stdout); |
477251f8 KZ |
1370 | } |
1371 | putchar('\n'); | |
1372 | ||
e3b3a2f3 KZ |
1373 | /* |
1374 | * Data | |
1375 | */ | |
a5cfffff | 1376 | for (i = 0; i < desc->ncpuspos; i++) { |
e3b3a2f3 | 1377 | int c; |
4f642863 | 1378 | int cpu = real_cpu_num(desc, i); |
e3b3a2f3 | 1379 | |
4f642863 | 1380 | if (!mod->offline && desc->online && !is_cpu_online(desc, cpu)) |
7afc2387 | 1381 | continue; |
4f642863 | 1382 | if (!mod->online && desc->online && is_cpu_online(desc, cpu)) |
477251f8 | 1383 | continue; |
4f642863 | 1384 | if (desc->present && !is_cpu_present(desc, cpu)) |
a5cfffff | 1385 | continue; |
477251f8 | 1386 | for (c = 0; c < ncols; c++) { |
8005924a | 1387 | if (mod->compat && cols[c] == COL_CACHE) { |
477251f8 KZ |
1388 | if (!desc->ncaches) |
1389 | continue; | |
1390 | if (c > 0) | |
1391 | putchar(','); | |
1392 | } | |
1393 | if (c > 0) | |
1394 | putchar(','); | |
e3b3a2f3 KZ |
1395 | |
1396 | data = get_cell_data(desc, i, cols[c], mod, | |
1397 | buf, sizeof(buf)); | |
1398 | fputs(data && *data ? data : "", stdout); | |
477251f8 | 1399 | } |
5dd7507c CQ |
1400 | putchar('\n'); |
1401 | } | |
1402 | } | |
1403 | ||
ba45d8c1 KZ |
1404 | /* |
1405 | * [-e] backend | |
1406 | */ | |
1407 | static void | |
1408 | print_readable(struct lscpu_desc *desc, int cols[], int ncols, | |
1409 | struct lscpu_modifier *mod) | |
1410 | { | |
1411 | int i; | |
e7213e34 KZ |
1412 | char buf[BUFSIZ]; |
1413 | const char *data; | |
710ed55d | 1414 | struct libscols_table *table; |
ba45d8c1 | 1415 | |
710ed55d KZ |
1416 | scols_init_debug(0); |
1417 | ||
1418 | table = scols_new_table(); | |
83db4eb2 | 1419 | if (!table) |
ba45d8c1 KZ |
1420 | err(EXIT_FAILURE, _("failed to initialize output table")); |
1421 | ||
1422 | for (i = 0; i < ncols; i++) { | |
b9d18bc3 | 1423 | data = get_cell_header(desc, cols[i], mod, buf, sizeof(buf)); |
83db4eb2 | 1424 | if (!scols_table_new_column(table, xstrdup(data), 0, 0)) |
e7213e34 | 1425 | err(EXIT_FAILURE, _("failed to initialize output column")); |
ba45d8c1 KZ |
1426 | } |
1427 | ||
a5cfffff | 1428 | for (i = 0; i < desc->ncpuspos; i++) { |
ba45d8c1 | 1429 | int c; |
83db4eb2 | 1430 | struct libscols_line *line; |
4f642863 | 1431 | int cpu = real_cpu_num(desc, i); |
ba45d8c1 | 1432 | |
4f642863 | 1433 | if (!mod->offline && desc->online && !is_cpu_online(desc, cpu)) |
7afc2387 | 1434 | continue; |
4f642863 | 1435 | if (!mod->online && desc->online && is_cpu_online(desc, cpu)) |
ba45d8c1 | 1436 | continue; |
4f642863 | 1437 | if (desc->present && !is_cpu_present(desc, cpu)) |
a5cfffff | 1438 | continue; |
ba45d8c1 | 1439 | |
83db4eb2 | 1440 | line = scols_table_new_line(table, NULL); |
e7213e34 KZ |
1441 | if (!line) |
1442 | err(EXIT_FAILURE, _("failed to initialize output line")); | |
ba45d8c1 KZ |
1443 | |
1444 | for (c = 0; c < ncols; c++) { | |
1445 | data = get_cell_data(desc, i, cols[c], mod, | |
1446 | buf, sizeof(buf)); | |
e7213e34 KZ |
1447 | if (!data || !*data) |
1448 | data = "-"; | |
1449 | scols_line_set_data(line, c, data); | |
ba45d8c1 KZ |
1450 | } |
1451 | } | |
1452 | ||
83db4eb2 OO |
1453 | scols_print_table(table); |
1454 | scols_unref_table(table); | |
ba45d8c1 | 1455 | } |
5dd7507c CQ |
1456 | |
1457 | /* output formats "<key> <value>"*/ | |
1458 | #define print_s(_key, _val) printf("%-23s%s\n", _key, _val) | |
1459 | #define print_n(_key, _val) printf("%-23s%d\n", _key, _val) | |
1460 | ||
1461 | static void | |
4f912c6a KZ |
1462 | print_cpuset(const char *key, cpu_set_t *set, int hex) |
1463 | { | |
1464 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); | |
1465 | size_t setbuflen = 7 * maxcpus; | |
1466 | char setbuf[setbuflen], *p; | |
1467 | ||
1468 | if (hex) { | |
1469 | p = cpumask_create(setbuf, setbuflen, set, setsize); | |
1470 | printf("%-23s0x%s\n", key, p); | |
1471 | } else { | |
1472 | p = cpulist_create(setbuf, setbuflen, set, setsize); | |
1473 | print_s(key, p); | |
1474 | } | |
1475 | ||
1476 | } | |
1477 | ||
ba45d8c1 KZ |
1478 | /* |
1479 | * default output | |
1480 | */ | |
4f912c6a | 1481 | static void |
8005924a | 1482 | print_summary(struct lscpu_desc *desc, struct lscpu_modifier *mod) |
5dd7507c | 1483 | { |
7e03f383 KZ |
1484 | char buf[512]; |
1485 | int i; | |
aac1e59e | 1486 | size_t setsize = CPU_ALLOC_SIZE(maxcpus); |
7e03f383 | 1487 | |
e6b0611b | 1488 | print_s(_("Architecture:"), desc->arch); |
79e8b41a | 1489 | |
f633ad4e | 1490 | if (desc->mode) { |
2d7bee25 | 1491 | char mbuf[64], *p = mbuf; |
79e8b41a | 1492 | |
f633ad4e | 1493 | if (desc->mode & MODE_32BIT) { |
79e8b41a KZ |
1494 | strcpy(p, "32-bit, "); |
1495 | p += 8; | |
1496 | } | |
f633ad4e | 1497 | if (desc->mode & MODE_64BIT) { |
79e8b41a KZ |
1498 | strcpy(p, "64-bit, "); |
1499 | p += 8; | |
1500 | } | |
1501 | *(p - 2) = '\0'; | |
2d7bee25 | 1502 | print_s(_("CPU op-mode(s):"), mbuf); |
79e8b41a | 1503 | } |
aabe2441 | 1504 | #if !defined(WORDS_BIGENDIAN) |
9b8d4d5f DB |
1505 | print_s(_("Byte Order:"), "Little Endian"); |
1506 | #else | |
1507 | print_s(_("Byte Order:"), "Big Endian"); | |
9b8d4d5f | 1508 | #endif |
4a939e04 | 1509 | print_n(_("CPU(s):"), desc->ncpus); |
4f912c6a | 1510 | |
5d4ba40d | 1511 | if (desc->online) |
8005924a KZ |
1512 | print_cpuset(mod->hex ? _("On-line CPU(s) mask:") : |
1513 | _("On-line CPU(s) list:"), | |
1514 | desc->online, mod->hex); | |
4f912c6a | 1515 | |
5d4ba40d | 1516 | if (desc->online && CPU_COUNT_S(setsize, desc->online) != desc->ncpus) { |
4f912c6a KZ |
1517 | cpu_set_t *set; |
1518 | ||
1519 | /* Linux kernel provides cpuset of off-line CPUs that contains | |
1520 | * all configured CPUs (see /sys/devices/system/cpu/offline), | |
1521 | * but want to print real (present in system) off-line CPUs only. | |
1522 | */ | |
1523 | set = cpuset_alloc(maxcpus, NULL, NULL); | |
1524 | if (!set) | |
1525 | err(EXIT_FAILURE, _("failed to callocate cpu set")); | |
1526 | CPU_ZERO_S(setsize, set); | |
a5cfffff | 1527 | for (i = 0; i < desc->ncpuspos; i++) { |
4f642863 AT |
1528 | int cpu = real_cpu_num(desc, i); |
1529 | if (!is_cpu_online(desc, cpu) && is_cpu_present(desc, cpu)) | |
1530 | CPU_SET_S(cpu, setsize, set); | |
4f912c6a | 1531 | } |
8005924a KZ |
1532 | print_cpuset(mod->hex ? _("Off-line CPU(s) mask:") : |
1533 | _("Off-line CPU(s) list:"), | |
1534 | set, mod->hex); | |
4f912c6a KZ |
1535 | cpuset_free(set); |
1536 | } | |
5dd7507c | 1537 | |
7e03f383 | 1538 | if (desc->nsockets) { |
8648ca96 HC |
1539 | int cores_per_socket, sockets_per_book, books; |
1540 | ||
1541 | cores_per_socket = sockets_per_book = books = 0; | |
1542 | /* s390 detects its cpu topology via /proc/sysinfo, if present. | |
1543 | * Using simply the cpu topology masks in sysfs will not give | |
1544 | * usable results since everything is virtualized. E.g. | |
1545 | * virtual core 0 may have only 1 cpu, but virtual core 2 may | |
1546 | * five cpus. | |
1547 | * If the cpu topology is not exported (e.g. 2nd level guest) | |
1548 | * fall back to old calculation scheme. | |
1549 | */ | |
1550 | if (path_exist(_PATH_PROC_SYSINFO)) { | |
1551 | FILE *fd = path_fopen("r", 0, _PATH_PROC_SYSINFO); | |
2d7bee25 | 1552 | char pbuf[BUFSIZ]; |
8648ca96 HC |
1553 | int t0, t1, t2; |
1554 | ||
2d7bee25 SK |
1555 | while (fd && fgets(pbuf, sizeof(pbuf), fd) != NULL) { |
1556 | if (sscanf(pbuf, "CPU Topology SW:%d%d%d%d%d%d", | |
8648ca96 HC |
1557 | &t0, &t1, &t2, &books, &sockets_per_book, |
1558 | &cores_per_socket) == 6) | |
1559 | break; | |
1560 | } | |
ad655c88 KZ |
1561 | if (fd) |
1562 | fclose(fd); | |
8648ca96 | 1563 | } |
7e03f383 | 1564 | print_n(_("Thread(s) per core:"), desc->nthreads / desc->ncores); |
8648ca96 HC |
1565 | print_n(_("Core(s) per socket:"), |
1566 | cores_per_socket ?: desc->ncores / desc->nsockets); | |
56baaa4e | 1567 | if (desc->nbooks) { |
8648ca96 HC |
1568 | print_n(_("Socket(s) per book:"), |
1569 | sockets_per_book ?: desc->nsockets / desc->nbooks); | |
1570 | print_n(_("Book(s):"), books ?: desc->nbooks); | |
56baaa4e | 1571 | } else { |
8648ca96 | 1572 | print_n(_("Socket(s):"), sockets_per_book ?: desc->nsockets); |
56baaa4e | 1573 | } |
5dd7507c | 1574 | } |
7e03f383 KZ |
1575 | if (desc->nnodes) |
1576 | print_n(_("NUMA node(s):"), desc->nnodes); | |
e8aa16ee KZ |
1577 | if (desc->vendor) |
1578 | print_s(_("Vendor ID:"), desc->vendor); | |
1579 | if (desc->family) | |
1580 | print_s(_("CPU family:"), desc->family); | |
1581 | if (desc->model) | |
1582 | print_s(_("Model:"), desc->model); | |
1461094c KZ |
1583 | if (desc->modelname) |
1584 | print_s(_("Model name:"), desc->modelname); | |
e8aa16ee KZ |
1585 | if (desc->stepping) |
1586 | print_s(_("Stepping:"), desc->stepping); | |
1587 | if (desc->mhz) | |
1588 | print_s(_("CPU MHz:"), desc->mhz); | |
e065a597 DB |
1589 | if (desc->maxmhz) |
1590 | print_s(_("CPU max MHz:"), desc->maxmhz[0]); | |
1591 | if (desc->minmhz) | |
1592 | print_s(_("CPU min MHz:"), desc->minmhz[0]); | |
9b8d4d5f DB |
1593 | if (desc->bogomips) |
1594 | print_s(_("BogoMIPS:"), desc->bogomips); | |
e8aa16ee KZ |
1595 | if (desc->virtflag) { |
1596 | if (!strcmp(desc->virtflag, "svm")) | |
5dd7507c | 1597 | print_s(_("Virtualization:"), "AMD-V"); |
e8aa16ee | 1598 | else if (!strcmp(desc->virtflag, "vmx")) |
5dd7507c CQ |
1599 | print_s(_("Virtualization:"), "VT-x"); |
1600 | } | |
10829cd7 HC |
1601 | if (desc->hypervisor) |
1602 | print_s(_("Hypervisor:"), desc->hypervisor); | |
e8aa16ee KZ |
1603 | if (desc->hyper) { |
1604 | print_s(_("Hypervisor vendor:"), hv_vendors[desc->hyper]); | |
50c6ee4c | 1605 | print_s(_("Virtualization type:"), _(virt_types[desc->virtype])); |
c8b64f6d | 1606 | } |
a0fff77e | 1607 | if (desc->dispatching >= 0) |
50c6ee4c | 1608 | print_s(_("Dispatching mode:"), _(disp_modes[desc->dispatching])); |
7e03f383 | 1609 | if (desc->ncaches) { |
2d7bee25 | 1610 | char cbuf[512]; |
5dd7507c | 1611 | |
7e03f383 | 1612 | for (i = desc->ncaches - 1; i >= 0; i--) { |
2d7bee25 | 1613 | snprintf(cbuf, sizeof(cbuf), |
7e03f383 | 1614 | _("%s cache:"), desc->caches[i].name); |
2d7bee25 | 1615 | print_s(cbuf, desc->caches[i].size); |
7e03f383 KZ |
1616 | } |
1617 | } | |
1618 | ||
4f912c6a | 1619 | for (i = 0; i < desc->nnodes; i++) { |
e9074a16 | 1620 | snprintf(buf, sizeof(buf), _("NUMA node%d CPU(s):"), desc->idx2nodenum[i]); |
8005924a | 1621 | print_cpuset(buf, desc->nodemaps[i], mod->hex); |
5dd7507c CQ |
1622 | } |
1623 | } | |
1624 | ||
39561c70 | 1625 | static void __attribute__((__noreturn__)) usage(FILE *out) |
5dd7507c | 1626 | { |
b9d18bc3 KZ |
1627 | size_t i; |
1628 | ||
1629 | fputs(USAGE_HEADER, out); | |
c6f095cf | 1630 | fprintf(out, _(" %s [options]\n"), program_invocation_short_name); |
7f1ec5e8 | 1631 | |
b9d18bc3 | 1632 | fputs(USAGE_OPTIONS, out); |
c6f095cf BS |
1633 | fputs(_(" -a, --all print both online and offline CPUs (default for -e)\n"), out); |
1634 | fputs(_(" -b, --online print online CPUs only (default for -p)\n"), out); | |
1635 | fputs(_(" -c, --offline print offline CPUs only\n"), out); | |
1636 | fputs(_(" -e, --extended[=<list>] print out an extended readable format\n"), out); | |
1637 | fputs(_(" -p, --parse[=<list>] print out a parsable format\n"), out); | |
1638 | fputs(_(" -s, --sysroot <dir> use specified directory as system root\n"), out); | |
1639 | fputs(_(" -x, --hex print hexadecimal masks rather than lists of CPUs\n"), out); | |
1640 | fputs(USAGE_SEPARATOR, out); | |
1641 | fputs(USAGE_HELP, out); | |
1642 | fputs(USAGE_VERSION, out); | |
b9d18bc3 KZ |
1643 | |
1644 | fprintf(out, _("\nAvailable columns:\n")); | |
1645 | ||
3d27b76a KZ |
1646 | for (i = 0; i < ARRAY_SIZE(coldescs); i++) |
1647 | fprintf(out, " %13s %s\n", coldescs[i].name, _(coldescs[i].help)); | |
1648 | ||
a587cc55 | 1649 | fprintf(out, USAGE_MAN_TAIL("lscpu(1)")); |
4f912c6a | 1650 | |
39561c70 | 1651 | exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); |
5dd7507c CQ |
1652 | } |
1653 | ||
1654 | int main(int argc, char *argv[]) | |
1655 | { | |
8005924a KZ |
1656 | struct lscpu_modifier _mod = { .mode = OUTPUT_SUMMARY }, *mod = &_mod; |
1657 | struct lscpu_desc _desc = { .flags = 0 }, *desc = &_desc; | |
1658 | int c, i; | |
3d27b76a | 1659 | int columns[ARRAY_SIZE(coldescs)], ncolumns = 0; |
7fc12cd2 | 1660 | int cpu_modifier_specified = 0; |
5dd7507c | 1661 | |
6c7d5ae9 | 1662 | static const struct option longopts[] = { |
0ad29ff6 | 1663 | { "all", no_argument, 0, 'a' }, |
23e9e95a | 1664 | { "online", no_argument, 0, 'b' }, |
7afc2387 | 1665 | { "offline", no_argument, 0, 'c' }, |
47b6e8b6 | 1666 | { "help", no_argument, 0, 'h' }, |
ba45d8c1 | 1667 | { "extended", optional_argument, 0, 'e' }, |
477251f8 | 1668 | { "parse", optional_argument, 0, 'p' }, |
47b6e8b6 | 1669 | { "sysroot", required_argument, 0, 's' }, |
4f912c6a | 1670 | { "hex", no_argument, 0, 'x' }, |
44de912c | 1671 | { "version", no_argument, 0, 'V' }, |
5dd7507c CQ |
1672 | { NULL, 0, 0, 0 } |
1673 | }; | |
1674 | ||
8e97eb4b KZ |
1675 | static const ul_excl_t excl[] = { /* rows and cols in ASCII order */ |
1676 | { 'a','b','c' }, | |
1677 | { 'e','p' }, | |
1678 | { 0 } | |
1679 | }; | |
1680 | int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT; | |
1681 | ||
2f8f1388 | 1682 | setlocale(LC_ALL, ""); |
5dd7507c CQ |
1683 | bindtextdomain(PACKAGE, LOCALEDIR); |
1684 | textdomain(PACKAGE); | |
efb8854f | 1685 | atexit(close_stdout); |
5dd7507c | 1686 | |
7afc2387 | 1687 | while ((c = getopt_long(argc, argv, "abce::hp::s:xV", longopts, NULL)) != -1) { |
8e97eb4b KZ |
1688 | |
1689 | err_exclusive_options(c, longopts, excl, excl_st); | |
1690 | ||
5dd7507c | 1691 | switch (c) { |
0ad29ff6 | 1692 | case 'a': |
7afc2387 | 1693 | mod->online = mod->offline = 1; |
7fc12cd2 | 1694 | cpu_modifier_specified = 1; |
0ad29ff6 | 1695 | break; |
23e9e95a KZ |
1696 | case 'b': |
1697 | mod->online = 1; | |
7fc12cd2 | 1698 | cpu_modifier_specified = 1; |
23e9e95a | 1699 | break; |
7afc2387 HC |
1700 | case 'c': |
1701 | mod->offline = 1; | |
7fc12cd2 | 1702 | cpu_modifier_specified = 1; |
7afc2387 | 1703 | break; |
5dd7507c | 1704 | case 'h': |
39561c70 | 1705 | usage(stdout); |
5dd7507c | 1706 | case 'p': |
ba45d8c1 | 1707 | case 'e': |
477251f8 KZ |
1708 | if (optarg) { |
1709 | if (*optarg == '=') | |
1710 | optarg++; | |
1711 | ncolumns = string_to_idarray(optarg, | |
1712 | columns, ARRAY_SIZE(columns), | |
1713 | column_name_to_id); | |
1714 | if (ncolumns < 0) | |
1715 | return EXIT_FAILURE; | |
477251f8 | 1716 | } |
ba45d8c1 | 1717 | mod->mode = c == 'p' ? OUTPUT_PARSABLE : OUTPUT_READABLE; |
5dd7507c | 1718 | break; |
47b6e8b6 | 1719 | case 's': |
ca01695b | 1720 | path_set_prefix(optarg); |
8148217b | 1721 | mod->system = SYSTEM_SNAPSHOT; |
47b6e8b6 | 1722 | break; |
4f912c6a | 1723 | case 'x': |
8005924a | 1724 | mod->hex = 1; |
4f912c6a | 1725 | break; |
44de912c | 1726 | case 'V': |
f6277500 | 1727 | printf(UTIL_LINUX_VERSION); |
44de912c | 1728 | return EXIT_SUCCESS; |
5dd7507c | 1729 | default: |
39561c70 | 1730 | usage(stderr); |
5dd7507c CQ |
1731 | } |
1732 | } | |
7bbb7829 | 1733 | |
7fc12cd2 HC |
1734 | if (cpu_modifier_specified && mod->mode == OUTPUT_SUMMARY) { |
1735 | fprintf(stderr, | |
1736 | _("%s: options --all, --online and --offline may only " | |
ac56e555 | 1737 | "be used with options --extended or --parse.\n"), |
7fc12cd2 HC |
1738 | program_invocation_short_name); |
1739 | return EXIT_FAILURE; | |
1740 | } | |
1741 | ||
7bbb7829 HC |
1742 | if (argc != optind) |
1743 | usage(stderr); | |
1744 | ||
7afc2387 HC |
1745 | /* set default cpu display mode if none was specified */ |
1746 | if (!mod->online && !mod->offline) { | |
1747 | mod->online = 1; | |
1748 | mod->offline = mod->mode == OUTPUT_READABLE ? 1 : 0; | |
1749 | } | |
5dd7507c | 1750 | |
8148217b | 1751 | read_basicinfo(desc, mod); |
5dd7507c | 1752 | |
a5cfffff | 1753 | for (i = 0; i < desc->ncpuspos; i++) { |
7e03f383 KZ |
1754 | read_topology(desc, i); |
1755 | read_cache(desc, i); | |
2b8fcb81 | 1756 | read_polarization(desc, i); |
596b8845 | 1757 | read_address(desc, i); |
d231eea1 | 1758 | read_configured(desc, i); |
44320710 | 1759 | read_max_mhz(desc, i); |
e065a597 | 1760 | read_min_mhz(desc, i); |
47b6e8b6 | 1761 | } |
7e03f383 | 1762 | |
960bf130 KZ |
1763 | if (desc->caches) |
1764 | qsort(desc->caches, desc->ncaches, | |
1765 | sizeof(struct cpu_cache), cachecmp); | |
7e03f383 KZ |
1766 | |
1767 | read_nodes(desc); | |
eff79ceb | 1768 | read_hypervisor(desc, mod); |
c8b64f6d | 1769 | |
8005924a | 1770 | switch(mod->mode) { |
ba45d8c1 KZ |
1771 | case OUTPUT_SUMMARY: |
1772 | print_summary(desc, mod); | |
1773 | break; | |
1774 | case OUTPUT_PARSABLE: | |
1775 | if (!ncolumns) { | |
1776 | columns[ncolumns++] = COL_CPU; | |
1777 | columns[ncolumns++] = COL_CORE; | |
1778 | columns[ncolumns++] = COL_SOCKET; | |
1779 | columns[ncolumns++] = COL_NODE; | |
1780 | columns[ncolumns++] = COL_CACHE; | |
1781 | mod->compat = 1; | |
1782 | } | |
1783 | print_parsable(desc, columns, ncolumns, mod); | |
1784 | break; | |
1785 | case OUTPUT_READABLE: | |
1786 | if (!ncolumns) { | |
1787 | /* No list was given. Just print whatever is there. */ | |
1788 | columns[ncolumns++] = COL_CPU; | |
1789 | if (desc->nodemaps) | |
8005924a | 1790 | columns[ncolumns++] = COL_NODE; |
ba45d8c1 KZ |
1791 | if (desc->bookmaps) |
1792 | columns[ncolumns++] = COL_BOOK; | |
1793 | if (desc->socketmaps) | |
1794 | columns[ncolumns++] = COL_SOCKET; | |
1795 | if (desc->coremaps) | |
1796 | columns[ncolumns++] = COL_CORE; | |
1797 | if (desc->caches) | |
8005924a | 1798 | columns[ncolumns++] = COL_CACHE; |
a7e5300c HC |
1799 | if (desc->online) |
1800 | columns[ncolumns++] = COL_ONLINE; | |
d231eea1 HC |
1801 | if (desc->configured) |
1802 | columns[ncolumns++] = COL_CONFIGURED; | |
ba45d8c1 KZ |
1803 | if (desc->polarization) |
1804 | columns[ncolumns++] = COL_POLARIZATION; | |
1805 | if (desc->addresses) | |
1806 | columns[ncolumns++] = COL_ADDRESS; | |
e065a597 DB |
1807 | if (desc->maxmhz) |
1808 | columns[ncolumns++] = COL_MAXMHZ; | |
1809 | if (desc->minmhz) | |
1810 | columns[ncolumns++] = COL_MINMHZ; | |
ba45d8c1 KZ |
1811 | } |
1812 | print_readable(desc, columns, ncolumns, mod); | |
1813 | break; | |
8005924a | 1814 | } |
5dd7507c | 1815 | |
cf474aac | 1816 | return EXIT_SUCCESS; |
5dd7507c | 1817 | } |