Annotation of src/sys/kern/init_main.c, Revision 1.437.2.2
1.437.2.2! mrg 1: /* $NetBSD$ */
1.347 ad 2:
3: /*-
1.384 ad 4: * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
1.347 ad 5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26: * POSSIBILITY OF SUCH DAMAGE.
27: */
1.61 mycroft 28:
29: /*
30: * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
31: * The Regents of the University of California. All rights reserved.
32: * (c) UNIX System Laboratories, Inc.
33: * All or some portions of this file are derived from material licensed
34: * to the University of California by American Telephone and Telegraph
35: * Co. or Unix System Laboratories, Inc. and are reproduced herein with
36: * the permission of UNIX System Laboratories, Inc.
37: *
38: * Redistribution and use in source and binary forms, with or without
39: * modification, are permitted provided that the following conditions
40: * are met:
41: * 1. Redistributions of source code must retain the above copyright
42: * notice, this list of conditions and the following disclaimer.
43: * 2. Redistributions in binary form must reproduce the above copyright
44: * notice, this list of conditions and the following disclaimer in the
45: * documentation and/or other materials provided with the distribution.
1.224 agc 46: * 3. Neither the name of the University nor the names of its contributors
47: * may be used to endorse or promote products derived from this software
48: * without specific prior written permission.
49: *
50: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60: * SUCH DAMAGE.
61: *
62: * @(#)init_main.c 8.16 (Berkeley) 5/14/95
63: */
64:
65: /*
66: * Copyright (c) 1995 Christopher G. Demetriou. All rights reserved.
67: *
68: * Redistribution and use in source and binary forms, with or without
69: * modification, are permitted provided that the following conditions
70: * are met:
71: * 1. Redistributions of source code must retain the above copyright
72: * notice, this list of conditions and the following disclaimer.
73: * 2. Redistributions in binary form must reproduce the above copyright
74: * notice, this list of conditions and the following disclaimer in the
75: * documentation and/or other materials provided with the distribution.
1.61 mycroft 76: * 3. All advertising materials mentioning features or use of this software
77: * must display the following acknowledgement:
78: * This product includes software developed by the University of
79: * California, Berkeley and its contributors.
80: * 4. Neither the name of the University nor the names of its contributors
81: * may be used to endorse or promote products derived from this software
82: * without specific prior written permission.
83: *
84: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
85: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
86: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
87: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
88: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
89: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
90: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
91: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
92: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
93: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
94: * SUCH DAMAGE.
95: *
1.118 fvdl 96: * @(#)init_main.c 8.16 (Berkeley) 5/14/95
1.61 mycroft 97: */
1.196 lukem 98:
99: #include <sys/cdefs.h>
1.437.2.2! mrg 100: __KERNEL_RCSID(0, "$NetBSD$");
1.115 mrg 101:
1.370 tsutsui 102: #include "opt_ddb.h"
1.223 jonathan 103: #include "opt_ipsec.h"
1.382 apb 104: #include "opt_modular.h"
1.267 kardel 105: #include "opt_ntp.h"
1.198 jdolecek 106: #include "opt_pipe.h"
1.172 soren 107: #include "opt_syscall_debug.h"
1.267 kardel 108: #include "opt_sysv.h"
1.292 ad 109: #include "opt_fileassoc.h"
110: #include "opt_ktrace.h"
1.281 elad 111: #include "opt_pax.h"
1.380 christos 112: #include "opt_compat_netbsd.h"
1.361 simonb 113: #include "opt_wapbl.h"
1.404 elad 114: #include "opt_ptrace.h"
1.61 mycroft 115:
1.402 dyoung 116: #include "drvctl.h"
1.377 he 117: #include "ksyms.h"
1.437.2.1 mrg 118:
1.305 xtraeme 119: #include "sysmon_envsys.h"
120: #include "sysmon_power.h"
1.313 xtraeme 121: #include "sysmon_taskq.h"
122: #include "sysmon_wdog.h"
1.276 dogcow 123: #include "veriexec.h"
1.106 explorer 124:
1.61 mycroft 125: #include <sys/param.h>
1.164 enami 126: #include <sys/acct.h>
1.61 mycroft 127: #include <sys/filedesc.h>
1.131 thorpej 128: #include <sys/file.h>
1.61 mycroft 129: #include <sys/errno.h>
1.162 thorpej 130: #include <sys/callout.h>
1.302 yamt 131: #include <sys/cpu.h>
1.436 jruoho 132: #include <sys/cpufreq.h>
1.408 dyoung 133: #include <sys/spldebug.h>
1.61 mycroft 134: #include <sys/kernel.h>
135: #include <sys/mount.h>
136: #include <sys/proc.h>
1.136 thorpej 137: #include <sys/kthread.h>
1.61 mycroft 138: #include <sys/resourcevar.h>
139: #include <sys/signalvar.h>
140: #include <sys/systm.h>
141: #include <sys/vnode.h>
1.288 hannken 142: #include <sys/fstrans.h>
1.87 thorpej 143: #include <sys/tty.h>
1.61 mycroft 144: #include <sys/conf.h>
1.95 thorpej 145: #include <sys/disklabel.h>
1.61 mycroft 146: #include <sys/buf.h>
147: #include <sys/device.h>
1.186 jdolecek 148: #include <sys/exec.h>
1.128 thorpej 149: #include <sys/socketvar.h>
1.61 mycroft 150: #include <sys/protosw.h>
1.338 yamt 151: #include <sys/percpu.h>
1.434 christos 152: #include <sys/pserialize.h>
1.342 rmind 153: #include <sys/pset.h>
1.338 yamt 154: #include <sys/sysctl.h>
1.61 mycroft 155: #include <sys/reboot.h>
1.209 jdolecek 156: #include <sys/event.h>
1.227 jonathan 157: #include <sys/mbuf.h>
1.302 yamt 158: #include <sys/sched.h>
1.292 ad 159: #include <sys/sleepq.h>
1.284 ad 160: #include <sys/iostat.h>
1.304 yamt 161: #include <sys/vmem.h>
1.307 ad 162: #include <sys/uuid.h>
163: #include <sys/extent.h>
1.309 ad 164: #include <sys/disk.h>
1.325 ad 165: #include <sys/msgbuf.h>
1.340 ad 166: #include <sys/module.h>
1.343 ad 167: #include <sys/event.h>
1.357 ad 168: #include <sys/lockf.h>
1.364 pooka 169: #include <sys/once.h>
1.435 rmind 170: #include <sys/kcpuset.h>
1.367 ad 171: #include <sys/ksyms.h>
1.365 pooka 172: #include <sys/uidinfo.h>
1.379 pooka 173: #include <sys/kprintf.h>
1.233 junyoung 174: #ifdef FAST_IPSEC
1.223 jonathan 175: #include <netipsec/ipsec.h>
176: #endif
1.82 christos 177: #ifdef SYSVSHM
178: #include <sys/shm.h>
179: #endif
1.233 junyoung 180: #ifdef SYSVSEM
1.82 christos 181: #include <sys/sem.h>
182: #endif
183: #ifdef SYSVMSG
184: #include <sys/msg.h>
185: #endif
186: #include <sys/domain.h>
1.94 mouse 187: #include <sys/namei.h>
1.103 explorer 188: #include <sys/rnd.h>
1.192 jdolecek 189: #include <sys/pipe.h>
1.273 elad 190: #if NVERIEXEC > 0
1.245 blymn 191: #include <sys/verified_exec.h>
1.273 elad 192: #endif /* NVERIEXEC > 0 */
1.292 ad 193: #ifdef KTRACE
194: #include <sys/ktrace.h>
195: #endif
1.266 elad 196: #include <sys/kauth.h>
1.252 skrll 197: #include <net80211/ieee80211_netbsd.h>
1.404 elad 198: #ifdef PTRACE
199: #include <sys/ptrace.h>
200: #endif /* PTRACE */
1.437 tls 201: #include <sys/cprng.h>
1.61 mycroft 202:
1.77 christos 203: #include <sys/syscall.h>
1.68 cgd 204: #include <sys/syscallargs.h>
205:
1.334 elad 206: #if defined(PAX_MPROTECT) || defined(PAX_SEGVGUARD) || defined(PAX_ASLR)
1.281 elad 207: #include <sys/pax.h>
1.334 elad 208: #endif /* PAX_MPROTECT || PAX_SEGVGUARD || PAX_ASLR */
209:
1.437.2.1 mrg 210: #include <secmodel/secmodel.h>
211:
1.61 mycroft 212: #include <ufs/ufs/quota.h>
213:
1.159 fvdl 214: #include <miscfs/genfs/genfs.h>
215: #include <miscfs/syncfs/syncfs.h>
1.410 elad 216: #include <miscfs/specfs/specdev.h>
1.159 fvdl 217:
1.323 ad 218: #include <sys/cpu.h>
1.61 mycroft 219:
1.425 uebayasi 220: #include <uvm/uvm.h> /* extern struct uvm uvm */
1.114 mrg 221:
1.310 xtraeme 222: #if NSYSMON_TASKQ > 0
223: #include <dev/sysmon/sysmon_taskq.h>
224: #endif
225:
1.202 lukem 226: #include <dev/cons.h>
1.310 xtraeme 227:
1.313 xtraeme 228: #if NSYSMON_ENVSYS > 0 || NSYSMON_POWER > 0 || NSYSMON_WDOG > 0
1.305 xtraeme 229: #include <dev/sysmon/sysmonvar.h>
230: #endif
1.202 lukem 231:
1.414 pooka 232: #include <net/bpf.h>
1.81 christos 233: #include <net/if.h>
234: #include <net/raw_cb.h>
1.61 mycroft 235:
1.399 pooka 236: #include <prop/proplib.h>
237:
1.380 christos 238: #ifdef COMPAT_50
239: #include <compat/sys/time.h>
240: struct timeval50 boottime50;
241: #endif
242:
1.398 pooka 243: #include <sys/userconf.h>
244:
1.251 junyoung 245: extern struct lwp lwp0;
1.311 pooka 246: extern time_t rootfstime;
1.251 junyoung 247:
1.216 thorpej 248: #ifndef curlwp
249: struct lwp *curlwp = &lwp0;
1.133 pk 250: #endif
1.105 mycroft 251: struct proc *initproc;
1.61 mycroft 252:
253: struct vnode *rootvp, *swapdev_vp;
254: int boothowto;
1.156 thorpej 255: int cold = 1; /* still working on startup */
1.380 christos 256: struct timespec boottime; /* time at system startup - will only follow settime deltas */
1.61 mycroft 257:
1.356 ad 258: int start_init_exec; /* semaphore for start_init() */
1.163 thorpej 259:
1.437 tls 260: cprng_strong_t *kern_cprng;
261:
1.260 christos 262: static void check_console(struct lwp *l);
1.176 thorpej 263: static void start_init(void *);
1.398 pooka 264: static void configure(void);
265: static void configure2(void);
1.421 tsutsui 266: static void configure3(void);
1.176 thorpej 267: void main(void);
1.280 christos 268:
1.61 mycroft 269: /*
270: * System startup; initialize the world, create process 0, mount root
271: * filesystem, and fork to create init and pagedaemon. Most of the
272: * hard work is done in the lower-level initialization routines including
273: * startup(), which does memory initialization and autoconfiguration.
274: */
1.81 christos 275: void
1.176 thorpej 276: main(void)
1.61 mycroft 277: {
1.380 christos 278: struct timespec time;
1.216 thorpej 279: struct lwp *l;
1.144 thorpej 280: struct proc *p;
1.204 thorpej 281: int s, error;
1.175 jdolecek 282: #ifdef NVNODE_IMPLICIT
283: int usevnodes;
284: #endif
1.312 ad 285: CPU_INFO_ITERATOR cii;
286: struct cpu_info *ci;
1.61 mycroft 287:
1.216 thorpej 288: l = &lwp0;
1.327 matt 289: #ifndef LWP0_CPU_INFO
1.216 thorpej 290: l->l_cpu = curcpu();
1.327 matt 291: #endif
1.394 yamt 292: l->l_pflag |= LP_RUNNING;
1.233 junyoung 293:
1.317 ad 294: /*
1.61 mycroft 295: * Attempt to find console and initialize
296: * in case of early panic or other messages.
297: */
298: consinit();
299:
1.321 ad 300: kernel_lock_init();
1.364 pooka 301: once_init();
1.434 christos 302:
1.437.2.1 mrg 303: mi_cpu_init();
1.423 pgoyette 304: kernconfig_lock_init();
1.429 rmind 305: kthread_sysinit();
1.179 thorpej 306:
1.397 pooka 307: /* Initialize the device switch tables. */
308: devsw_init();
309:
1.432 rmind 310: /* Initialize event counters. */
311: evcnt_init();
312:
1.114 mrg 313: uvm_init();
1.435 rmind 314: kcpuset_sysinit();
1.127 thorpej 315:
1.399 pooka 316: prop_kern_init();
317:
1.377 he 318: #if ((NKSYMS > 0) || (NDDB > 0) || (NMODULAR > 0))
1.376 martin 319: ksyms_init();
1.377 he 320: #endif
1.379 pooka 321: kprintf_init();
1.376 martin 322:
1.338 yamt 323: percpu_init();
324:
1.347 ad 325: /* Initialize lock caches. */
326: mutex_obj_init();
1.389 ad 327: rw_obj_init();
1.347 ad 328:
1.434 christos 329: /* Passive serialization. */
330: pserialize_init();
331:
1.307 ad 332: /* Initialize the extent manager. */
333: extent_init();
334:
1.145 thorpej 335: /* Do machine-dependent initialization. */
336: cpu_startup();
1.162 thorpej 337:
1.378 pooka 338: /* Initialize the sysctl subsystem. */
339: sysctl_init();
340:
1.307 ad 341: /* Initialize callouts, part 1. */
1.166 enami 342: callout_startup();
1.145 thorpej 343:
1.409 elad 344: /* Initialize the kernel authorization subsystem. */
345: kauth_init();
346:
1.437.2.1 mrg 347: secmodel_init();
348:
1.409 elad 349: spec_init();
350:
1.414 pooka 351: /*
352: * Set BPF op vector. Can't do this in bpf attach, since
353: * network drivers attach before bpf.
354: */
355: bpf_setops();
356:
1.403 elad 357: /* Start module system. */
1.417 pooka 358: module_init();
1.403 elad 359:
1.291 elad 360: /*
361: * Initialize the kernel authorization subsystem and start the
362: * default security model, if any. We need to do this early
363: * enough so that subsystems relying on any of the aforementioned
364: * can work properly. Since the security model may dictate the
365: * credential inheritance policy, it is needed at least before
366: * any process is created, specifically proc0.
367: */
1.403 elad 368: module_init_class(MODULE_CLASS_SECMODEL);
1.290 elad 369:
1.228 pk 370: /* Initialize the buffer cache */
371: bufinit();
372:
1.128 thorpej 373: /* Initialize sockets. */
374: soinit();
1.127 thorpej 375:
1.156 thorpej 376: /*
1.212 thorpej 377: * The following things must be done before autoconfiguration.
1.156 thorpej 378: */
1.437 tls 379: rnd_init(); /* initialize entropy pool */
380:
381: cprng_init(); /* initialize cryptographic PRNG */
1.176 thorpej 382:
1.236 simonb 383: /* Initialize process and pgrp structures. */
1.63 mycroft 384: procinit();
1.279 thorpej 385: lwpinit();
1.210 thorpej 386:
1.251 junyoung 387: /* Initialize signal-related data structures. */
388: signal_init();
1.61 mycroft 389:
1.333 ad 390: /* Initialize resource management. */
391: resource_init();
392:
1.407 rmind 393: /* Create process 0. */
1.251 junyoung 394: proc0_init();
1.420 pooka 395: lwp0_init();
1.61 mycroft 396:
1.383 yamt 397: /* Disable preemption during boot. */
398: kpreempt_disable();
399:
1.307 ad 400: /* Initialize the UID hash table. */
401: uid_init();
402:
403: /* Charge root for one process. */
1.61 mycroft 404: (void)chgproccnt(0, 1);
405:
1.330 ad 406: /* Initialize timekeeping. */
407: time_init();
408:
1.292 ad 409: /* Initialize the run queues, turnstiles and sleep queues. */
1.302 yamt 410: sched_rqinit();
1.292 ad 411: turnstile_init();
412: sleeptab_init(&sleeptab);
413:
1.405 elad 414: sched_init();
415:
1.339 rmind 416: /* Initialize processor-sets */
417: psets_init();
418:
1.436 jruoho 419: /* Initialize cpufreq(9) */
420: cpufreq_init();
421:
1.302 yamt 422: /* MI initialization of the boot cpu */
423: error = mi_cpu_attach(curcpu());
424: KASSERT(error == 0);
425:
1.350 ad 426: /* Initialize timekeeping, part 2. */
427: time_init2();
428:
1.338 yamt 429: /*
430: * Initialize mbuf's. Do this now because we might attempt to
431: * allocate mbufs or mbuf clusters during autoconfiguration.
432: */
433: mbinit();
434:
1.284 ad 435: /* Initialize I/O statistics. */
436: iostat_init();
437:
1.325 ad 438: /* Initialize the log device. */
439: loginit();
440:
1.403 elad 441: /* Second part of module system initialization. */
1.422 pgoyette 442: module_start_unload_thread();
1.355 ad 443:
1.61 mycroft 444: /* Initialize the file systems. */
1.194 matt 445: #ifdef NVNODE_IMPLICIT
446: /*
447: * If maximum number of vnodes in namei vnode cache is not explicitly
448: * defined in kernel config, adjust the number such as we use roughly
1.359 ad 449: * 10% of memory for vnodes and associated data structures in the
450: * assumed worst case. Do not provide fewer than NVNODE vnodes.
1.194 matt 451: */
1.346 yamt 452: usevnodes =
1.359 ad 453: calc_cache_size(kernel_map, 10, VNODE_VA_MAXPCT) / VNODE_COST;
1.205 sommerfe 454: if (usevnodes > desiredvnodes)
1.194 matt 455: desiredvnodes = usevnodes;
456: #endif
1.61 mycroft 457: vfsinit();
1.357 ad 458: lf_init();
1.61 mycroft 459:
1.288 hannken 460: /* Initialize fstrans. */
461: fstrans_init();
1.267 kardel 462:
1.319 ad 463: /* Initialize the file descriptor system. */
1.343 ad 464: fd_sys_init();
1.319 ad 465:
1.375 pooka 466: /* Initialize cwd structures */
467: cwd_sys_init();
468:
1.344 ad 469: /* Initialize kqueue. */
1.343 ad 470: kqueue_init();
1.307 ad 471:
1.313 xtraeme 472: /* Initialize the system monitor subsystems. */
1.310 xtraeme 473: #if NSYSMON_TASKQ > 0
474: sysmon_task_queue_preinit();
475: #endif
476:
1.305 xtraeme 477: #if NSYSMON_ENVSYS > 0
478: sysmon_envsys_init();
479: #endif
1.310 xtraeme 480:
1.305 xtraeme 481: #if NSYSMON_POWER > 0
482: sysmon_power_init();
483: #endif
1.313 xtraeme 484:
485: #if NSYSMON_WDOG > 0
486: sysmon_wdog_init();
487: #endif
488:
1.268 kardel 489: inittimecounter();
1.267 kardel 490: ntp_init();
491:
1.326 ad 492: /* Initialize tty subsystem. */
493: tty_init();
494: ttyldisc_init();
495:
1.336 ad 496: /* Initialize the buffer cache, part 2. */
497: bufinit2();
498:
1.309 ad 499: /* Initialize the disk wedge subsystem. */
500: dkwedge_init();
501:
1.437 tls 502: /* Initialize the kernel strong PRNG. */
503: kern_cprng = cprng_strong_create("kernel", IPL_VM,
504: CPRNG_INIT_ANY|CPRNG_REKEY_ANY);
505:
1.360 yamt 506: /* Initialize interfaces. */
507: ifinit1();
508:
1.408 dyoung 509: spldebug_start();
510:
1.433 bouyer 511: /* Initialize sockets thread(s) */
512: soinit1();
513:
1.156 thorpej 514: /* Configure the system hardware. This will enable interrupts. */
515: configure();
1.61 mycroft 516:
1.381 christos 517: ssp_init();
518:
1.424 eeh 519: ubc_init(); /* must be after autoconfig */
520:
1.432 rmind 521: mm_init();
522:
1.381 christos 523: configure2();
1.383 yamt 524: /* Now timer is working. Enable preemption. */
525: kpreempt_enable();
526:
1.61 mycroft 527: #ifdef SYSVSHM
528: /* Initialize System V style shared memory. */
529: shminit();
530: #endif
531:
1.418 cegger 532: vmem_rehash_start(); /* must be before exec_init */
533:
534: /* Initialize exec structures */
535: exec_init(1); /* seminit calls exithook_establish() */
536:
1.61 mycroft 537: #ifdef SYSVSEM
538: /* Initialize System V style semaphores. */
539: seminit();
540: #endif
541:
542: #ifdef SYSVMSG
543: /* Initialize System V style message queues. */
544: msginit();
545: #endif
546:
1.273 elad 547: #if NVERIEXEC > 0
1.283 elad 548: /*
549: * Initialise the Veriexec subsystem.
550: */
551: veriexec_init();
1.273 elad 552: #endif /* NVERIEXEC > 0 */
1.251 junyoung 553:
1.334 elad 554: #if defined(PAX_MPROTECT) || defined(PAX_SEGVGUARD) || defined(PAX_ASLR)
1.281 elad 555: pax_init();
1.334 elad 556: #endif /* PAX_MPROTECT || PAX_SEGVGUARD || PAX_ASLR */
1.281 elad 557:
1.223 jonathan 558: #ifdef FAST_IPSEC
559: /* Attach network crypto subsystem */
560: ipsec_attach();
561: #endif
1.61 mycroft 562:
563: /*
564: * Initialize protocols. Block reception of incoming packets
565: * until everything is ready.
566: */
1.190 thorpej 567: s = splnet();
1.61 mycroft 568: ifinit();
1.390 pooka 569: domaininit(true);
1.200 itojun 570: if_attachdomain();
1.61 mycroft 571: splx(s);
572:
573: #ifdef GPROF
574: /* Initialize kernel profiling. */
575: kmstartup();
576: #endif
1.164 enami 577:
1.351 sborrill 578: /* Initialize system accounting. */
1.164 enami 579: acct_init();
1.61 mycroft 580:
1.301 ad 581: #ifndef PIPE_SOCKETPAIR
1.300 ad 582: /* Initialize pipes. */
583: pipe_init();
1.301 ad 584: #endif
1.300 ad 585:
1.292 ad 586: #ifdef KTRACE
587: /* Initialize ktrace. */
588: ktrinit();
589: #endif
590:
1.404 elad 591: #ifdef PTRACE
592: /* Initialize ptrace. */
593: ptrace_init();
594: #endif /* PTRACE */
595:
1.307 ad 596: /* Initialize the UUID system calls. */
597: uuid_init();
598:
1.406 elad 599: machdep_init();
600:
1.427 pooka 601: procinit_sysctl();
602:
1.163 thorpej 603: /*
604: * Create process 1 (init(8)). We do this now, as Unix has
605: * historically had init be process 1, and changing this would
606: * probably upset a lot of people.
607: *
608: * Note that process 1 won't immediately exec init(8), but will
609: * wait for us to inform it that the root file system has been
610: * mounted.
611: */
1.216 thorpej 612: if (fork1(l, 0, SIGCHLD, NULL, 0, start_init, NULL, NULL, &initproc))
1.163 thorpej 613: panic("fork init");
614:
615: /*
1.340 ad 616: * Load any remaining builtin modules, and hand back temporary
1.422 pgoyette 617: * storage to the VM system. Then require force when loading any
618: * remaining un-init'ed built-in modules to avoid later surprises.
1.340 ad 619: */
620: module_init_class(MODULE_CLASS_ANY);
1.422 pgoyette 621: module_builtin_require_force();
1.340 ad 622:
623: /*
1.208 thorpej 624: * Finalize configuration now that all real devices have been
625: * found. This needs to be done before the root device is
626: * selected, since finalization may create the root device.
627: */
628: config_finalize();
1.163 thorpej 629:
1.400 pooka 630: sysctl_finalize();
631:
1.163 thorpej 632: /*
633: * Now that autoconfiguration has completed, we can determine
634: * the root and dump devices.
635: */
1.98 gwr 636: cpu_rootconf();
1.101 thorpej 637: cpu_dumpconf();
1.61 mycroft 638:
639: /* Mount the root file system. */
1.95 thorpej 640: do {
1.416 pooka 641: domountroothook(root_device);
1.95 thorpej 642: if ((error = vfs_mountroot())) {
1.97 thorpej 643: printf("cannot mount root, error = %d\n", error);
1.95 thorpej 644: boothowto |= RB_ASKNAME;
645: setroot(root_device,
1.152 thorpej 646: (rootdev != NODEV) ? DISKPART(rootdev) : 0);
1.95 thorpej 647: }
648: } while (error != 0);
649: mountroothook_destroy();
650:
1.421 tsutsui 651: configure3();
652:
1.239 pk 653: /*
654: * Initialise the time-of-day clock, passing the time recorded
655: * in the root filesystem (if any) for use by systems that
656: * don't have a non-volatile time-of-day device.
657: */
658: inittodr(rootfstime);
659:
1.61 mycroft 660: /*
661: * Now can look at time, having had a chance to verify the time
1.292 ad 662: * from the file system. Reset l->l_rtime as it may have been
1.61 mycroft 663: * munched in mi_switch() after the time got set.
664: */
1.380 christos 665: getnanotime(&time);
1.267 kardel 666: boottime = time;
1.380 christos 667: #ifdef COMPAT_50
668: {
669: struct timeval tv;
670: TIMESPEC_TO_TIMEVAL(&tv, &time);
671: timeval_to_timeval50(&tv, &boottime50);
672: }
673: #endif
1.352 ad 674: mutex_enter(proc_lock);
1.225 jdolecek 675: LIST_FOREACH(p, &allproc, p_list) {
1.295 pavel 676: KASSERT((p->p_flag & PK_MARKER) == 0);
1.353 ad 677: mutex_enter(p->p_lock);
1.380 christos 678: TIMESPEC_TO_TIMEVAL(&p->p_stats->p_start, &time);
1.225 jdolecek 679: LIST_FOREACH(l, &p->p_lwps, l_sibling) {
1.292 ad 680: lwp_lock(l);
1.332 yamt 681: memset(&l->l_rtime, 0, sizeof(l->l_rtime));
1.292 ad 682: lwp_unlock(l);
1.225 jdolecek 683: }
1.353 ad 684: mutex_exit(p->p_lock);
1.163 thorpej 685: }
1.352 ad 686: mutex_exit(proc_lock);
1.332 yamt 687: binuptime(&curlwp->l_stime);
1.61 mycroft 688:
1.312 ad 689: for (CPU_INFO_FOREACH(cii, ci)) {
690: ci->ci_schedstate.spc_lastmod = time_second;
691: }
692:
1.163 thorpej 693: /* Create the pageout daemon kernel thread. */
694: uvm_swap_init();
1.336 ad 695: if (kthread_create(PRI_PGDAEMON, KTHREAD_MPSAFE, NULL, uvm_pageout,
1.307 ad 696: NULL, NULL, "pgdaemon"))
1.135 thorpej 697: panic("fork pagedaemon");
1.61 mycroft 698:
1.163 thorpej 699: /* Create the filesystem syncer kernel thread. */
1.336 ad 700: if (kthread_create(PRI_IOFLUSH, KTHREAD_MPSAFE, NULL, sched_sync,
701: NULL, NULL, "ioflush"))
1.159 fvdl 702: panic("fork syncer");
1.185 chs 703:
704: /* Create the aiodone daemon kernel thread. */
1.286 yamt 705: if (workqueue_create(&uvm.aiodone_queue, "aiodoned",
1.336 ad 706: uvm_aiodone_worker, NULL, PRI_VM, IPL_NONE, WQ_MPSAFE))
1.185 chs 707: panic("fork aiodoned");
1.137 thorpej 708:
1.163 thorpej 709: /*
710: * Okay, now we can let init(8) exec! It's off to userland!
711: */
1.356 ad 712: mutex_enter(proc_lock);
1.163 thorpej 713: start_init_exec = 1;
1.356 ad 714: cv_broadcast(&lbolt);
715: mutex_exit(proc_lock);
1.163 thorpej 716:
1.61 mycroft 717: /* The scheduler is an infinite loop. */
1.114 mrg 718: uvm_scheduler();
1.61 mycroft 719: /* NOTREACHED */
720: }
721:
1.398 pooka 722: /*
723: * Configure the system's hardware.
724: */
725: static void
726: configure(void)
727: {
728:
729: /* Initialize autoconf data structures. */
1.401 pooka 730: config_init_mi();
1.398 pooka 731: /*
732: * XXX
733: * callout_setfunc() requires mutex(9) so it can't be in config_init()
734: * on amiga and atari which use config_init() and autoconf(9) fucntions
735: * to initialize console devices.
736: */
737: config_twiddle_init();
738:
739: pmf_init();
740: #if NDRVCTL > 0
741: drvctl_init();
742: #endif
743:
1.430 uebayasi 744: userconf_init();
1.398 pooka 745: if (boothowto & RB_USERCONF)
1.430 uebayasi 746: userconf_prompt();
1.398 pooka 747:
748: if ((boothowto & (AB_SILENT|AB_VERBOSE)) == AB_SILENT) {
749: printf_nolog("Detecting hardware...");
750: }
751:
752: /*
753: * Do the machine-dependent portion of autoconfiguration. This
754: * sets the configuration machinery here in motion by "finding"
755: * the root bus. When this function returns, we expect interrupts
756: * to be enabled.
757: */
758: cpu_configure();
759: }
760:
761: static void
762: configure2(void)
763: {
764: CPU_INFO_ITERATOR cii;
765: struct cpu_info *ci;
766: int s;
767:
768: /*
769: * Now that we've found all the hardware, start the real time
770: * and statistics clocks.
771: */
772: initclocks();
773:
774: cold = 0; /* clocks are running, we're warm now! */
775: s = splsched();
776: curcpu()->ci_schedstate.spc_flags |= SPCF_RUNNING;
777: splx(s);
778:
779: /* Boot the secondary processors. */
780: for (CPU_INFO_FOREACH(cii, ci)) {
781: uvm_cpu_attach(ci);
782: }
783: mp_online = true;
784: #if defined(MULTIPROCESSOR)
785: cpu_boot_secondary_processors();
786: #endif
787:
788: /* Setup the runqueues and scheduler. */
789: runq_init();
1.405 elad 790: synch_init();
1.398 pooka 791:
792: /*
793: * Bus scans can make it appear as if the system has paused, so
794: * twiddle constantly while config_interrupts() jobs are running.
795: */
796: config_twiddle_fn(NULL);
797:
798: /*
799: * Create threads to call back and finish configuration for
800: * devices that want interrupts enabled.
801: */
802: config_create_interruptthreads();
803:
804: /* Get the threads going and into any sleeps before continuing. */
805: yield();
806: }
807:
1.93 mouse 808: static void
1.421 tsutsui 809: configure3(void)
810: {
811:
812: /*
813: * Create threads to call back and finish configuration for
814: * devices that want the mounted root file system.
815: */
816: config_create_mountrootthreads();
817:
818: /* Get the threads going and into any sleeps before continuing. */
819: yield();
820: }
821:
822: static void
1.260 christos 823: check_console(struct lwp *l)
1.93 mouse 824: {
1.391 dholland 825: struct vnode *vp;
1.93 mouse 826: int error;
827:
1.391 dholland 828: error = namei_simple_kernel("/dev/console",
829: NSM_FOLLOW_NOEMULROOT, &vp);
1.96 cgd 830: if (error == 0)
1.391 dholland 831: vrele(vp);
1.96 cgd 832: else if (error == ENOENT)
833: printf("warning: no /dev/console\n");
1.93 mouse 834: else
1.96 cgd 835: printf("warning: lookup /dev/console: error %d\n", error);
1.93 mouse 836: }
837:
1.61 mycroft 838: /*
839: * List of paths to try when searching for "init".
840: */
1.327 matt 841: static const char * const initpaths[] = {
1.61 mycroft 842: "/sbin/init",
843: "/sbin/oinit",
844: "/sbin/init.bak",
845: NULL,
846: };
847:
848: /*
849: * Start the initial user process; try exec'ing each pathname in "initpaths".
850: * The program is invoked with one argument containing the boot flags.
851: */
852: static void
1.176 thorpej 853: start_init(void *arg)
1.61 mycroft 854: {
1.216 thorpej 855: struct lwp *l = arg;
856: struct proc *p = l->l_proc;
1.130 eeh 857: vaddr_t addr;
1.78 mycroft 858: struct sys_execve_args /* {
1.108 mycroft 859: syscallarg(const char *) path;
1.92 cgd 860: syscallarg(char * const *) argp;
861: syscallarg(char * const *) envp;
1.68 cgd 862: } */ args;
863: int options, i, error;
864: register_t retval[2];
1.66 mycroft 865: char flags[4], *flagsp;
1.202 lukem 866: const char *path, *slash;
1.176 thorpej 867: char *ucp, **uap, *arg0, *arg1 = NULL;
1.202 lukem 868: char ipath[129];
869: int ipx, len;
1.61 mycroft 870:
1.76 cgd 871: /*
872: * Now in process 1.
873: */
1.146 gwr 874: strncpy(p->p_comm, "init", MAXCOMLEN);
1.163 thorpej 875:
876: /*
877: * Wait for main() to tell us that it's safe to exec.
878: */
1.356 ad 879: mutex_enter(proc_lock);
1.163 thorpej 880: while (start_init_exec == 0)
1.356 ad 881: cv_wait(&lbolt, proc_lock);
882: mutex_exit(proc_lock);
1.93 mouse 883:
884: /*
885: * This is not the right way to do this. We really should
886: * hand-craft a descriptor onto /dev/console to hand to init,
887: * but that's a _lot_ more work, and the benefit from this easy
888: * hack makes up for the "good is the enemy of the best" effect.
889: */
1.260 christos 890: check_console(l);
1.61 mycroft 891:
892: /*
893: * Need just enough stack to hold the faked-up "execve()" arguments.
894: */
1.211 chs 895: addr = (vaddr_t)STACK_ALLOC(USRSTACK, PAGE_SIZE);
1.205 sommerfe 896: if (uvm_map(&p->p_vmspace->vm_map, &addr, PAGE_SIZE,
1.181 thorpej 897: NULL, UVM_UNKNOWN_OFFSET, 0,
1.114 mrg 898: UVM_MAPFLAG(UVM_PROT_ALL, UVM_PROT_ALL, UVM_INH_COPY,
899: UVM_ADV_NORMAL,
1.189 chs 900: UVM_FLAG_FIXED|UVM_FLAG_OVERLAY|UVM_FLAG_COPYONW)) != 0)
1.114 mrg 901: panic("init: couldn't allocate argument space");
1.297 christos 902: p->p_vmspace->vm_maxsaddr = (void *)STACK_MAX(addr, PAGE_SIZE);
1.61 mycroft 903:
1.202 lukem 904: ipx = 0;
905: while (1) {
906: if (boothowto & RB_ASKNAME) {
907: printf("init path");
908: if (initpaths[ipx])
909: printf(" (default %s)", initpaths[ipx]);
910: printf(": ");
911: len = cngetsn(ipath, sizeof(ipath)-1);
1.371 tsutsui 912: if (len == 4 && strcmp(ipath, "halt") == 0) {
1.370 tsutsui 913: cpu_reboot(RB_HALT, NULL);
914: } else if (len == 6 && strcmp(ipath, "reboot") == 0) {
915: cpu_reboot(0, NULL);
916: #if defined(DDB)
917: } else if (len == 3 && strcmp(ipath, "ddb") == 0) {
918: console_debugger();
919: continue;
920: #endif
1.371 tsutsui 921: } else if (len > 0 && ipath[0] == '/') {
1.202 lukem 922: ipath[len] = '\0';
923: path = ipath;
1.371 tsutsui 924: } else if (len == 0 && initpaths[ipx] != NULL) {
925: path = initpaths[ipx++];
926: } else {
927: printf("use absolute path, ");
928: #if defined(DDB)
929: printf("\"ddb\", ");
930: #endif
931: printf("\"halt\", or \"reboot\"\n");
932: continue;
1.202 lukem 933: }
934: } else {
1.370 tsutsui 935: if ((path = initpaths[ipx++]) == NULL) {
936: ipx = 0;
937: boothowto |= RB_ASKNAME;
938: continue;
939: }
1.202 lukem 940: }
941:
1.211 chs 942: ucp = (char *)USRSTACK;
1.64 mycroft 943:
1.61 mycroft 944: /*
1.64 mycroft 945: * Construct the boot flag argument.
1.61 mycroft 946: */
1.66 mycroft 947: flagsp = flags;
948: *flagsp++ = '-';
1.61 mycroft 949: options = 0;
1.66 mycroft 950:
1.61 mycroft 951: if (boothowto & RB_SINGLE) {
1.64 mycroft 952: *flagsp++ = 's';
1.61 mycroft 953: options = 1;
954: }
955: #ifdef notyet
956: if (boothowto & RB_FASTBOOT) {
1.64 mycroft 957: *flagsp++ = 'f';
1.61 mycroft 958: options = 1;
959: }
960: #endif
1.64 mycroft 961:
962: /*
963: * Move out the flags (arg 1), if necessary.
964: */
965: if (options != 0) {
966: *flagsp++ = '\0';
967: i = flagsp - flags;
968: #ifdef DEBUG
1.415 hubertf 969: aprint_normal("init: copying out flags `%s' %d\n", flags, i);
1.64 mycroft 970: #endif
1.211 chs 971: arg1 = STACK_ALLOC(ucp, i);
972: ucp = STACK_MAX(arg1, i);
1.297 christos 973: (void)copyout((void *)flags, arg1, i);
1.64 mycroft 974: }
1.61 mycroft 975:
976: /*
977: * Move out the file name (also arg 0).
978: */
1.64 mycroft 979: i = strlen(path) + 1;
980: #ifdef DEBUG
1.415 hubertf 981: aprint_normal("init: copying out path `%s' %d\n", path, i);
1.202 lukem 982: #else
1.203 lukem 983: if (boothowto & RB_ASKNAME || path != initpaths[0])
1.202 lukem 984: printf("init: trying %s\n", path);
1.64 mycroft 985: #endif
1.211 chs 986: arg0 = STACK_ALLOC(ucp, i);
987: ucp = STACK_MAX(arg0, i);
1.247 christos 988: (void)copyout(path, arg0, i);
1.61 mycroft 989:
990: /*
991: * Move out the arg pointers.
992: */
1.437.2.1 mrg 993: ucp = (void *)STACK_ALIGN(ucp, STACK_ALIGNBYTES);
1.211 chs 994: uap = (char **)STACK_ALLOC(ucp, sizeof(char *) * 3);
995: SCARG(&args, path) = arg0;
996: SCARG(&args, argp) = uap;
997: SCARG(&args, envp) = NULL;
1.142 mycroft 998: slash = strrchr(path, '/');
999: if (slash)
1.297 christos 1000: (void)suword((void *)uap++,
1.142 mycroft 1001: (long)arg0 + (slash + 1 - path));
1002: else
1.297 christos 1003: (void)suword((void *)uap++, (long)arg0);
1.211 chs 1004: if (options != 0)
1.297 christos 1005: (void)suword((void *)uap++, (long)arg1);
1006: (void)suword((void *)uap++, 0); /* terminator */
1.61 mycroft 1007:
1008: /*
1009: * Now try to exec the program. If can't for any reason
1010: * other than it doesn't exist, complain.
1011: */
1.260 christos 1012: error = sys_execve(l, &args, retval);
1.179 thorpej 1013: if (error == 0 || error == EJUSTRETURN) {
1.292 ad 1014: KERNEL_UNLOCK_LAST(l);
1.61 mycroft 1015: return;
1.179 thorpej 1016: }
1.202 lukem 1017: printf("exec %s: error %d\n", path, error);
1.61 mycroft 1018: }
1.90 christos 1019: printf("init: not found\n");
1.61 mycroft 1020: panic("no init");
1021: }
1.345 yamt 1022:
1023: /*
1.428 yamt 1024: * calculate cache size (in bytes) from physmem and vm_map size.
1.345 yamt 1025: */
1026: vaddr_t
1.346 yamt 1027: calc_cache_size(struct vm_map *map, int pct, int va_pct)
1.345 yamt 1028: {
1029: paddr_t t;
1030:
1031: /* XXX should consider competing cache if any */
1032: /* XXX should consider submaps */
1.346 yamt 1033: t = (uintmax_t)physmem * pct / 100 * PAGE_SIZE;
1034: if (map != NULL) {
1035: vsize_t vsize;
1036:
1037: vsize = vm_map_max(map) - vm_map_min(map);
1038: vsize = (uintmax_t)vsize * va_pct / 100;
1039: if (t > vsize) {
1040: t = vsize;
1041: }
1.345 yamt 1042: }
1043: return t;
1044: }
1.385 ad 1045:
1046: /*
1047: * Print the system start up banner.
1048: *
1049: * - Print a limited banner if AB_SILENT.
1050: * - Always send normal banner to the log.
1051: */
1.388 tsutsui 1052: #define MEM_PBUFSIZE sizeof("99999 MB")
1053:
1.385 ad 1054: void
1055: banner(void)
1056: {
1057: static char notice[] = " Notice: this software is "
1058: "protected by copyright";
1.386 ad 1059: char pbuf[81];
1.385 ad 1060: void (*pr)(const char *, ...);
1061: int i;
1062:
1063: if ((boothowto & AB_SILENT) != 0) {
1064: snprintf(pbuf, sizeof(pbuf), "%s %s (%s)",
1065: ostype, osrelease, kernel_ident);
1.392 ad 1066: printf_nolog("%s", pbuf);
1.387 ad 1067: for (i = 80 - strlen(pbuf) - sizeof(notice); i > 0; i--)
1.385 ad 1068: printf(" ");
1.392 ad 1069: printf_nolog("%s\n", notice);
1.385 ad 1070: pr = aprint_normal;
1071: } else {
1072: pr = printf;
1073: }
1074:
1075: memset(pbuf, 0, sizeof(pbuf));
1076: (*pr)("%s%s", copyright, version);
1.388 tsutsui 1077: format_bytes(pbuf, MEM_PBUFSIZE, ctob((uint64_t)physmem));
1.385 ad 1078: (*pr)("total memory = %s\n", pbuf);
1.388 tsutsui 1079: format_bytes(pbuf, MEM_PBUFSIZE, ctob((uint64_t)uvmexp.free));
1.385 ad 1080: (*pr)("avail memory = %s\n", pbuf);
1081: }
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