Annotation of src/sys/kern/init_main.c, Revision 1.482.2.3
1.482.2.3! pgoyette 1: /* $NetBSD: init_main.c,v 1.489 2017/01/05 03:22:20 pgoyette Exp $ */
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>
1.482.2.3! pgoyette 100: __KERNEL_RCSID(0, "$NetBSD: init_main.c,v 1.489 2017/01/05 03:22:20 pgoyette Exp $");
1.115 mrg 101:
1.370 tsutsui 102: #include "opt_ddb.h"
1.475 ozaki-r 103: #include "opt_inet.h"
1.223 jonathan 104: #include "opt_ipsec.h"
1.382 apb 105: #include "opt_modular.h"
1.267 kardel 106: #include "opt_ntp.h"
1.198 jdolecek 107: #include "opt_pipe.h"
1.172 soren 108: #include "opt_syscall_debug.h"
1.267 kardel 109: #include "opt_sysv.h"
1.292 ad 110: #include "opt_fileassoc.h"
111: #include "opt_ktrace.h"
1.281 elad 112: #include "opt_pax.h"
1.380 christos 113: #include "opt_compat_netbsd.h"
1.361 simonb 114: #include "opt_wapbl.h"
1.404 elad 115: #include "opt_ptrace.h"
1.458 tls 116: #include "opt_rnd_printf.h"
1.465 nat 117: #include "opt_splash.h"
1.482.2.3! pgoyette 118: #include "opt_kernhist.h"
1.465 nat 119:
1.470 uebayasi 120: #if defined(SPLASHSCREEN) && defined(makeoptions_SPLASHSCREEN_IMAGE)
1.465 nat 121: extern void *_binary_splash_image_start;
122: extern void *_binary_splash_image_end;
123: #endif
1.61 mycroft 124:
1.377 he 125: #include "ksyms.h"
1.441 tls 126:
1.276 dogcow 127: #include "veriexec.h"
1.106 explorer 128:
1.61 mycroft 129: #include <sys/param.h>
1.164 enami 130: #include <sys/acct.h>
1.61 mycroft 131: #include <sys/filedesc.h>
1.131 thorpej 132: #include <sys/file.h>
1.61 mycroft 133: #include <sys/errno.h>
1.162 thorpej 134: #include <sys/callout.h>
1.302 yamt 135: #include <sys/cpu.h>
1.436 jruoho 136: #include <sys/cpufreq.h>
1.408 dyoung 137: #include <sys/spldebug.h>
1.61 mycroft 138: #include <sys/kernel.h>
139: #include <sys/mount.h>
140: #include <sys/proc.h>
1.136 thorpej 141: #include <sys/kthread.h>
1.61 mycroft 142: #include <sys/resourcevar.h>
143: #include <sys/signalvar.h>
144: #include <sys/systm.h>
145: #include <sys/vnode.h>
1.288 hannken 146: #include <sys/fstrans.h>
1.87 thorpej 147: #include <sys/tty.h>
1.61 mycroft 148: #include <sys/conf.h>
1.95 thorpej 149: #include <sys/disklabel.h>
1.61 mycroft 150: #include <sys/buf.h>
151: #include <sys/device.h>
1.186 jdolecek 152: #include <sys/exec.h>
1.128 thorpej 153: #include <sys/socketvar.h>
1.61 mycroft 154: #include <sys/protosw.h>
1.338 yamt 155: #include <sys/percpu.h>
1.434 christos 156: #include <sys/pserialize.h>
1.342 rmind 157: #include <sys/pset.h>
1.338 yamt 158: #include <sys/sysctl.h>
1.61 mycroft 159: #include <sys/reboot.h>
1.209 jdolecek 160: #include <sys/event.h>
1.227 jonathan 161: #include <sys/mbuf.h>
1.302 yamt 162: #include <sys/sched.h>
1.292 ad 163: #include <sys/sleepq.h>
1.455 rmind 164: #include <sys/ipi.h>
1.284 ad 165: #include <sys/iostat.h>
1.304 yamt 166: #include <sys/vmem.h>
1.307 ad 167: #include <sys/uuid.h>
168: #include <sys/extent.h>
1.309 ad 169: #include <sys/disk.h>
1.325 ad 170: #include <sys/msgbuf.h>
1.340 ad 171: #include <sys/module.h>
1.343 ad 172: #include <sys/event.h>
1.357 ad 173: #include <sys/lockf.h>
1.364 pooka 174: #include <sys/once.h>
1.435 rmind 175: #include <sys/kcpuset.h>
1.367 ad 176: #include <sys/ksyms.h>
1.365 pooka 177: #include <sys/uidinfo.h>
1.379 pooka 178: #include <sys/kprintf.h>
1.482.2.3! pgoyette 179: #include <sys/bufq.h>
1.449 christos 180: #ifdef IPSEC
1.223 jonathan 181: #include <netipsec/ipsec.h>
182: #endif
1.82 christos 183: #include <sys/domain.h>
1.94 mouse 184: #include <sys/namei.h>
1.103 explorer 185: #include <sys/rnd.h>
1.192 jdolecek 186: #include <sys/pipe.h>
1.273 elad 187: #if NVERIEXEC > 0
1.245 blymn 188: #include <sys/verified_exec.h>
1.273 elad 189: #endif /* NVERIEXEC > 0 */
1.292 ad 190: #ifdef KTRACE
191: #include <sys/ktrace.h>
192: #endif
1.266 elad 193: #include <sys/kauth.h>
1.252 skrll 194: #include <net80211/ieee80211_netbsd.h>
1.437 tls 195: #include <sys/cprng.h>
1.61 mycroft 196:
1.77 christos 197: #include <sys/syscall.h>
1.68 cgd 198: #include <sys/syscallargs.h>
199:
1.281 elad 200: #include <sys/pax.h>
1.334 elad 201:
1.438 jym 202: #include <secmodel/secmodel.h>
203:
1.61 mycroft 204: #include <ufs/ufs/quota.h>
205:
1.159 fvdl 206: #include <miscfs/genfs/genfs.h>
1.410 elad 207: #include <miscfs/specfs/specdev.h>
1.159 fvdl 208:
1.323 ad 209: #include <sys/cpu.h>
1.61 mycroft 210:
1.425 uebayasi 211: #include <uvm/uvm.h> /* extern struct uvm uvm */
1.114 mrg 212:
1.202 lukem 213: #include <dev/cons.h>
1.465 nat 214: #include <dev/splash/splash.h>
1.310 xtraeme 215:
1.414 pooka 216: #include <net/bpf.h>
1.81 christos 217: #include <net/if.h>
218: #include <net/raw_cb.h>
1.468 ozaki-r 219: #include <net/if_llatbl.h>
1.61 mycroft 220:
1.399 pooka 221: #include <prop/proplib.h>
222:
1.398 pooka 223: #include <sys/userconf.h>
224:
1.251 junyoung 225: extern struct lwp lwp0;
1.311 pooka 226: extern time_t rootfstime;
1.251 junyoung 227:
1.216 thorpej 228: #ifndef curlwp
229: struct lwp *curlwp = &lwp0;
1.133 pk 230: #endif
1.105 mycroft 231: struct proc *initproc;
1.61 mycroft 232:
233: struct vnode *rootvp, *swapdev_vp;
234: int boothowto;
1.156 thorpej 235: int cold = 1; /* still working on startup */
1.380 christos 236: struct timespec boottime; /* time at system startup - will only follow settime deltas */
1.61 mycroft 237:
1.356 ad 238: int start_init_exec; /* semaphore for start_init() */
1.163 thorpej 239:
1.437 tls 240: cprng_strong_t *kern_cprng;
241:
1.260 christos 242: static void check_console(struct lwp *l);
1.176 thorpej 243: static void start_init(void *);
1.398 pooka 244: static void configure(void);
245: static void configure2(void);
1.421 tsutsui 246: static void configure3(void);
1.176 thorpej 247: void main(void);
1.280 christos 248:
1.61 mycroft 249: /*
250: * System startup; initialize the world, create process 0, mount root
251: * filesystem, and fork to create init and pagedaemon. Most of the
252: * hard work is done in the lower-level initialization routines including
253: * startup(), which does memory initialization and autoconfiguration.
254: */
1.81 christos 255: void
1.176 thorpej 256: main(void)
1.61 mycroft 257: {
1.380 christos 258: struct timespec time;
1.216 thorpej 259: struct lwp *l;
1.144 thorpej 260: struct proc *p;
1.204 thorpej 261: int s, error;
1.175 jdolecek 262: #ifdef NVNODE_IMPLICIT
263: int usevnodes;
264: #endif
1.312 ad 265: CPU_INFO_ITERATOR cii;
266: struct cpu_info *ci;
1.61 mycroft 267:
1.216 thorpej 268: l = &lwp0;
1.327 matt 269: #ifndef LWP0_CPU_INFO
1.216 thorpej 270: l->l_cpu = curcpu();
1.327 matt 271: #endif
1.394 yamt 272: l->l_pflag |= LP_RUNNING;
1.233 junyoung 273:
1.317 ad 274: /*
1.61 mycroft 275: * Attempt to find console and initialize
276: * in case of early panic or other messages.
277: */
278: consinit();
279:
1.321 ad 280: kernel_lock_init();
1.364 pooka 281: once_init();
1.434 christos 282:
1.440 rmind 283: mi_cpu_init();
1.423 pgoyette 284: kernconfig_lock_init();
1.429 rmind 285: kthread_sysinit();
1.179 thorpej 286:
1.397 pooka 287: /* Initialize the device switch tables. */
288: devsw_init();
289:
1.432 rmind 290: /* Initialize event counters. */
291: evcnt_init();
292:
1.114 mrg 293: uvm_init();
1.457 riastrad 294: ubchist_init();
1.435 rmind 295: kcpuset_sysinit();
1.127 thorpej 296:
1.399 pooka 297: prop_kern_init();
298:
1.377 he 299: #if ((NKSYMS > 0) || (NDDB > 0) || (NMODULAR > 0))
1.376 martin 300: ksyms_init();
1.377 he 301: #endif
1.379 pooka 302: kprintf_init();
1.376 martin 303:
1.338 yamt 304: percpu_init();
305:
1.347 ad 306: /* Initialize lock caches. */
307: mutex_obj_init();
1.389 ad 308: rw_obj_init();
1.347 ad 309:
1.434 christos 310: /* Passive serialization. */
311: pserialize_init();
312:
1.482.2.1 pgoyette 313: /* Init the detach capability in devsw */
314: devsw_detach_init();
315:
1.307 ad 316: /* Initialize the extent manager. */
317: extent_init();
318:
1.145 thorpej 319: /* Do machine-dependent initialization. */
320: cpu_startup();
1.162 thorpej 321:
1.378 pooka 322: /* Initialize the sysctl subsystem. */
323: sysctl_init();
324:
1.307 ad 325: /* Initialize callouts, part 1. */
1.166 enami 326: callout_startup();
1.145 thorpej 327:
1.409 elad 328: /* Initialize the kernel authorization subsystem. */
329: kauth_init();
330:
1.438 jym 331: secmodel_init();
332:
1.409 elad 333: spec_init();
334:
1.414 pooka 335: /*
336: * Set BPF op vector. Can't do this in bpf attach, since
337: * network drivers attach before bpf.
338: */
339: bpf_setops();
340:
1.403 elad 341: /* Start module system. */
1.417 pooka 342: module_init();
1.403 elad 343:
1.291 elad 344: /*
345: * Initialize the kernel authorization subsystem and start the
346: * default security model, if any. We need to do this early
347: * enough so that subsystems relying on any of the aforementioned
348: * can work properly. Since the security model may dictate the
349: * credential inheritance policy, it is needed at least before
350: * any process is created, specifically proc0.
351: */
1.403 elad 352: module_init_class(MODULE_CLASS_SECMODEL);
1.290 elad 353:
1.228 pk 354: /* Initialize the buffer cache */
355: bufinit();
1.482.2.3! pgoyette 356: biohist_init();
! 357:
! 358: #ifdef KERNHIST
! 359: sysctl_kernhist_init();
! 360: #endif
1.228 pk 361:
1.465 nat 362:
363: #if defined(SPLASHSCREEN) && defined(SPLASHSCREEN_IMAGE)
364: size_t splash_size = (&_binary_splash_image_end -
365: &_binary_splash_image_start) * sizeof(void *);
366: splash_setimage(&_binary_splash_image_start, splash_size);
367: #endif
368:
1.128 thorpej 369: /* Initialize sockets. */
370: soinit();
1.127 thorpej 371:
1.156 thorpej 372: /*
1.212 thorpej 373: * The following things must be done before autoconfiguration.
1.156 thorpej 374: */
1.437 tls 375: rnd_init(); /* initialize entropy pool */
376:
377: cprng_init(); /* initialize cryptographic PRNG */
1.176 thorpej 378:
1.236 simonb 379: /* Initialize process and pgrp structures. */
1.63 mycroft 380: procinit();
1.279 thorpej 381: lwpinit();
1.210 thorpej 382:
1.251 junyoung 383: /* Initialize signal-related data structures. */
384: signal_init();
1.61 mycroft 385:
1.333 ad 386: /* Initialize resource management. */
387: resource_init();
388:
1.407 rmind 389: /* Create process 0. */
1.251 junyoung 390: proc0_init();
1.420 pooka 391: lwp0_init();
1.61 mycroft 392:
1.383 yamt 393: /* Disable preemption during boot. */
394: kpreempt_disable();
395:
1.307 ad 396: /* Initialize the UID hash table. */
397: uid_init();
398:
399: /* Charge root for one process. */
1.61 mycroft 400: (void)chgproccnt(0, 1);
401:
1.330 ad 402: /* Initialize timekeeping. */
403: time_init();
404:
1.292 ad 405: /* Initialize the run queues, turnstiles and sleep queues. */
1.302 yamt 406: sched_rqinit();
1.292 ad 407: turnstile_init();
408: sleeptab_init(&sleeptab);
409:
1.405 elad 410: sched_init();
411:
1.339 rmind 412: /* Initialize processor-sets */
413: psets_init();
414:
1.436 jruoho 415: /* Initialize cpufreq(9) */
416: cpufreq_init();
417:
1.302 yamt 418: /* MI initialization of the boot cpu */
419: error = mi_cpu_attach(curcpu());
420: KASSERT(error == 0);
421:
1.350 ad 422: /* Initialize timekeeping, part 2. */
423: time_init2();
424:
1.338 yamt 425: /*
426: * Initialize mbuf's. Do this now because we might attempt to
427: * allocate mbufs or mbuf clusters during autoconfiguration.
428: */
429: mbinit();
430:
1.284 ad 431: /* Initialize I/O statistics. */
432: iostat_init();
433:
1.325 ad 434: /* Initialize the log device. */
435: loginit();
436:
1.403 elad 437: /* Second part of module system initialization. */
1.422 pgoyette 438: module_start_unload_thread();
1.355 ad 439:
1.61 mycroft 440: /* Initialize the file systems. */
1.194 matt 441: #ifdef NVNODE_IMPLICIT
442: /*
443: * If maximum number of vnodes in namei vnode cache is not explicitly
444: * defined in kernel config, adjust the number such as we use roughly
1.359 ad 445: * 10% of memory for vnodes and associated data structures in the
446: * assumed worst case. Do not provide fewer than NVNODE vnodes.
1.194 matt 447: */
1.448 para 448: usevnodes = calc_cache_size(vmem_size(kmem_arena, VMEM_FREE|VMEM_ALLOC),
449: 10, VNODE_KMEM_MAXPCT) / VNODE_COST;
1.205 sommerfe 450: if (usevnodes > desiredvnodes)
1.194 matt 451: desiredvnodes = usevnodes;
452: #endif
1.61 mycroft 453: vfsinit();
1.357 ad 454: lf_init();
1.61 mycroft 455:
1.288 hannken 456: /* Initialize fstrans. */
457: fstrans_init();
1.267 kardel 458:
1.319 ad 459: /* Initialize the file descriptor system. */
1.343 ad 460: fd_sys_init();
1.319 ad 461:
1.375 pooka 462: /* Initialize cwd structures */
463: cwd_sys_init();
464:
1.344 ad 465: /* Initialize kqueue. */
1.343 ad 466: kqueue_init();
1.307 ad 467:
1.268 kardel 468: inittimecounter();
1.267 kardel 469: ntp_init();
470:
1.326 ad 471: /* Initialize tty subsystem. */
472: tty_init();
473: ttyldisc_init();
474:
1.336 ad 475: /* Initialize the buffer cache, part 2. */
476: bufinit2();
477:
1.309 ad 478: /* Initialize the disk wedge subsystem. */
479: dkwedge_init();
480:
1.437 tls 481: /* Initialize the kernel strong PRNG. */
482: kern_cprng = cprng_strong_create("kernel", IPL_VM,
483: CPRNG_INIT_ANY|CPRNG_REKEY_ANY);
1.458 tls 484:
1.360 yamt 485: /* Initialize interfaces. */
486: ifinit1();
487:
1.408 dyoung 488: spldebug_start();
489:
1.433 bouyer 490: /* Initialize sockets thread(s) */
491: soinit1();
492:
1.482.2.3! pgoyette 493: /*
! 494: * Initialize the bufq strategy sub-system and any built-in
! 495: * strategy modules - they may be needed by some devices during
! 496: * auto-configuration
! 497: */
! 498: bufq_init();
! 499: module_init_class(MODULE_CLASS_BUFQ);
! 500:
1.156 thorpej 501: /* Configure the system hardware. This will enable interrupts. */
502: configure();
1.61 mycroft 503:
1.459 riastrad 504: /* Once all CPUs are detected, initialize the per-CPU cprng_fast. */
505: cprng_fast_init();
506:
1.381 christos 507: ssp_init();
508:
1.424 eeh 509: ubc_init(); /* must be after autoconfig */
510:
1.432 rmind 511: mm_init();
512:
1.381 christos 513: configure2();
1.456 rmind 514:
515: ipi_sysinit();
516:
1.383 yamt 517: /* Now timer is working. Enable preemption. */
518: kpreempt_enable();
519:
1.461 uebayasi 520: /* Get the threads going and into any sleeps before continuing. */
521: yield();
522:
1.453 riastrad 523: /* Enable deferred processing of RNG samples */
524: rnd_init_softint();
525:
1.458 tls 526: #ifdef RND_PRINTF
527: /* Enable periodic injection of console output into entropy pool */
528: kprintf_init_callout();
529: #endif
530:
1.418 cegger 531: vmem_rehash_start(); /* must be before exec_init */
532:
533: /* Initialize exec structures */
534: exec_init(1); /* seminit calls exithook_establish() */
535:
1.273 elad 536: #if NVERIEXEC > 0
1.283 elad 537: /*
538: * Initialise the Veriexec subsystem.
539: */
540: veriexec_init();
1.273 elad 541: #endif /* NVERIEXEC > 0 */
1.251 junyoung 542:
1.281 elad 543: pax_init();
544:
1.449 christos 545: #ifdef IPSEC
1.223 jonathan 546: /* Attach network crypto subsystem */
547: ipsec_attach();
548: #endif
1.61 mycroft 549:
550: /*
551: * Initialize protocols. Block reception of incoming packets
552: * until everything is ready.
553: */
1.190 thorpej 554: s = splnet();
1.61 mycroft 555: ifinit();
1.475 ozaki-r 556: #if defined(INET) || defined(INET6)
1.468 ozaki-r 557: lltableinit();
1.469 ozaki-r 558: #endif
1.390 pooka 559: domaininit(true);
1.200 itojun 560: if_attachdomain();
1.61 mycroft 561: splx(s);
562:
563: #ifdef GPROF
564: /* Initialize kernel profiling. */
565: kmstartup();
566: #endif
1.164 enami 567:
1.351 sborrill 568: /* Initialize system accounting. */
1.164 enami 569: acct_init();
1.61 mycroft 570:
1.301 ad 571: #ifndef PIPE_SOCKETPAIR
1.300 ad 572: /* Initialize pipes. */
573: pipe_init();
1.301 ad 574: #endif
1.300 ad 575:
1.292 ad 576: #ifdef KTRACE
577: /* Initialize ktrace. */
578: ktrinit();
579: #endif
580:
1.406 elad 581: machdep_init();
582:
1.427 pooka 583: procinit_sysctl();
584:
1.472 mrg 585: scdebug_init();
586:
1.163 thorpej 587: /*
588: * Create process 1 (init(8)). We do this now, as Unix has
589: * historically had init be process 1, and changing this would
590: * probably upset a lot of people.
591: *
592: * Note that process 1 won't immediately exec init(8), but will
593: * wait for us to inform it that the root file system has been
594: * mounted.
595: */
1.216 thorpej 596: if (fork1(l, 0, SIGCHLD, NULL, 0, start_init, NULL, NULL, &initproc))
1.163 thorpej 597: panic("fork init");
598:
599: /*
1.340 ad 600: * Load any remaining builtin modules, and hand back temporary
1.422 pgoyette 601: * storage to the VM system. Then require force when loading any
602: * remaining un-init'ed built-in modules to avoid later surprises.
1.340 ad 603: */
604: module_init_class(MODULE_CLASS_ANY);
1.422 pgoyette 605: module_builtin_require_force();
1.340 ad 606:
607: /*
1.208 thorpej 608: * Finalize configuration now that all real devices have been
609: * found. This needs to be done before the root device is
610: * selected, since finalization may create the root device.
611: */
612: config_finalize();
1.163 thorpej 613:
1.400 pooka 614: sysctl_finalize();
615:
1.163 thorpej 616: /*
617: * Now that autoconfiguration has completed, we can determine
618: * the root and dump devices.
619: */
1.445 mlelstv 620: cpu_rootconf();
1.101 thorpej 621: cpu_dumpconf();
1.61 mycroft 622:
623: /* Mount the root file system. */
1.95 thorpej 624: do {
1.416 pooka 625: domountroothook(root_device);
1.95 thorpej 626: if ((error = vfs_mountroot())) {
1.97 thorpej 627: printf("cannot mount root, error = %d\n", error);
1.95 thorpej 628: boothowto |= RB_ASKNAME;
629: setroot(root_device,
1.152 thorpej 630: (rootdev != NODEV) ? DISKPART(rootdev) : 0);
1.95 thorpej 631: }
632: } while (error != 0);
633: mountroothook_destroy();
634:
1.421 tsutsui 635: configure3();
636:
1.239 pk 637: /*
638: * Initialise the time-of-day clock, passing the time recorded
639: * in the root filesystem (if any) for use by systems that
640: * don't have a non-volatile time-of-day device.
641: */
642: inittodr(rootfstime);
643:
1.61 mycroft 644: /*
645: * Now can look at time, having had a chance to verify the time
1.292 ad 646: * from the file system. Reset l->l_rtime as it may have been
1.61 mycroft 647: * munched in mi_switch() after the time got set.
648: */
1.380 christos 649: getnanotime(&time);
1.267 kardel 650: boottime = time;
1.447 pgoyette 651:
1.352 ad 652: mutex_enter(proc_lock);
1.225 jdolecek 653: LIST_FOREACH(p, &allproc, p_list) {
1.295 pavel 654: KASSERT((p->p_flag & PK_MARKER) == 0);
1.353 ad 655: mutex_enter(p->p_lock);
1.380 christos 656: TIMESPEC_TO_TIMEVAL(&p->p_stats->p_start, &time);
1.225 jdolecek 657: LIST_FOREACH(l, &p->p_lwps, l_sibling) {
1.292 ad 658: lwp_lock(l);
1.332 yamt 659: memset(&l->l_rtime, 0, sizeof(l->l_rtime));
1.292 ad 660: lwp_unlock(l);
1.225 jdolecek 661: }
1.353 ad 662: mutex_exit(p->p_lock);
1.163 thorpej 663: }
1.352 ad 664: mutex_exit(proc_lock);
1.332 yamt 665: binuptime(&curlwp->l_stime);
1.61 mycroft 666:
1.312 ad 667: for (CPU_INFO_FOREACH(cii, ci)) {
668: ci->ci_schedstate.spc_lastmod = time_second;
669: }
670:
1.163 thorpej 671: /* Create the pageout daemon kernel thread. */
672: uvm_swap_init();
1.336 ad 673: if (kthread_create(PRI_PGDAEMON, KTHREAD_MPSAFE, NULL, uvm_pageout,
1.307 ad 674: NULL, NULL, "pgdaemon"))
1.135 thorpej 675: panic("fork pagedaemon");
1.61 mycroft 676:
1.163 thorpej 677: /* Create the filesystem syncer kernel thread. */
1.336 ad 678: if (kthread_create(PRI_IOFLUSH, KTHREAD_MPSAFE, NULL, sched_sync,
679: NULL, NULL, "ioflush"))
1.159 fvdl 680: panic("fork syncer");
1.185 chs 681:
682: /* Create the aiodone daemon kernel thread. */
1.286 yamt 683: if (workqueue_create(&uvm.aiodone_queue, "aiodoned",
1.336 ad 684: uvm_aiodone_worker, NULL, PRI_VM, IPL_NONE, WQ_MPSAFE))
1.185 chs 685: panic("fork aiodoned");
1.137 thorpej 686:
1.462 mrg 687: /* Wait for final configure threads to complete. */
688: config_finalize_mountroot();
689:
1.163 thorpej 690: /*
691: * Okay, now we can let init(8) exec! It's off to userland!
692: */
1.356 ad 693: mutex_enter(proc_lock);
1.163 thorpej 694: start_init_exec = 1;
1.356 ad 695: cv_broadcast(&lbolt);
696: mutex_exit(proc_lock);
1.163 thorpej 697:
1.61 mycroft 698: /* The scheduler is an infinite loop. */
1.114 mrg 699: uvm_scheduler();
1.61 mycroft 700: /* NOTREACHED */
701: }
702:
1.398 pooka 703: /*
704: * Configure the system's hardware.
705: */
706: static void
707: configure(void)
708: {
709:
710: /* Initialize autoconf data structures. */
1.401 pooka 711: config_init_mi();
1.398 pooka 712: /*
713: * XXX
714: * callout_setfunc() requires mutex(9) so it can't be in config_init()
715: * on amiga and atari which use config_init() and autoconf(9) fucntions
716: * to initialize console devices.
717: */
718: config_twiddle_init();
719:
720: pmf_init();
721:
1.471 jmcneill 722: /* Initialize driver modules */
723: module_init_class(MODULE_CLASS_DRIVER);
724:
1.430 uebayasi 725: userconf_init();
1.398 pooka 726: if (boothowto & RB_USERCONF)
1.430 uebayasi 727: userconf_prompt();
1.398 pooka 728:
729: if ((boothowto & (AB_SILENT|AB_VERBOSE)) == AB_SILENT) {
730: printf_nolog("Detecting hardware...");
731: }
732:
733: /*
734: * Do the machine-dependent portion of autoconfiguration. This
735: * sets the configuration machinery here in motion by "finding"
736: * the root bus. When this function returns, we expect interrupts
737: * to be enabled.
738: */
739: cpu_configure();
740: }
741:
742: static void
743: configure2(void)
744: {
745: CPU_INFO_ITERATOR cii;
746: struct cpu_info *ci;
747: int s;
748:
749: /*
750: * Now that we've found all the hardware, start the real time
751: * and statistics clocks.
752: */
753: initclocks();
754:
755: cold = 0; /* clocks are running, we're warm now! */
756: s = splsched();
757: curcpu()->ci_schedstate.spc_flags |= SPCF_RUNNING;
758: splx(s);
759:
760: /* Boot the secondary processors. */
761: for (CPU_INFO_FOREACH(cii, ci)) {
762: uvm_cpu_attach(ci);
763: }
764: mp_online = true;
765: #if defined(MULTIPROCESSOR)
766: cpu_boot_secondary_processors();
767: #endif
768:
769: /* Setup the runqueues and scheduler. */
770: runq_init();
1.405 elad 771: synch_init();
1.398 pooka 772:
773: /*
774: * Bus scans can make it appear as if the system has paused, so
775: * twiddle constantly while config_interrupts() jobs are running.
776: */
777: config_twiddle_fn(NULL);
778:
779: /*
780: * Create threads to call back and finish configuration for
781: * devices that want interrupts enabled.
782: */
783: config_create_interruptthreads();
784: }
785:
1.93 mouse 786: static void
1.421 tsutsui 787: configure3(void)
788: {
789:
790: /*
791: * Create threads to call back and finish configuration for
792: * devices that want the mounted root file system.
793: */
794: config_create_mountrootthreads();
795:
796: /* Get the threads going and into any sleeps before continuing. */
797: yield();
798: }
799:
800: static void
1.443 mlelstv 801: rootconf_handle_wedges(void)
802: {
1.477 christos 803: struct disklabel label;
1.443 mlelstv 804: struct partition *p;
805: struct vnode *vp;
806: daddr_t startblk;
807: uint64_t nblks;
1.482 msaitoh 808: device_t dev;
1.443 mlelstv 809: int error;
810:
811: if (booted_nblks) {
812: /*
813: * bootloader passed geometry
814: */
815: dev = booted_device;
816: startblk = booted_startblk;
817: nblks = booted_nblks;
818:
819: /*
820: * keep booted_device and booted_partition
821: * in case the kernel doesn't identify a wedge
822: */
823: } else {
824: /*
825: * bootloader passed partition number
826: *
827: * We cannot ask the partition device directly when it is
828: * covered by a wedge. Instead we look up the geometry in
829: * the disklabel.
830: */
831: vp = opendisk(booted_device);
1.444 martin 832:
833: if (vp == NULL)
834: return;
835:
1.477 christos 836: error = VOP_IOCTL(vp, DIOCGDINFO, &label, FREAD, NOCRED);
1.443 mlelstv 837: VOP_CLOSE(vp, FREAD, NOCRED);
838: vput(vp);
839: if (error)
840: return;
841:
842: KASSERT(booted_partition >= 0
843: && booted_partition < MAXPARTITIONS);
844:
1.477 christos 845: p = &label.d_partitions[booted_partition];
1.443 mlelstv 846:
847: dev = booted_device;
848: startblk = p->p_offset;
849: nblks = p->p_size;
850: }
851:
852: dev = dkwedge_find_partition(dev, startblk, nblks);
853: if (dev != NULL) {
854: booted_device = dev;
855: booted_partition = 0;
856: }
857: }
858:
1.445 mlelstv 859: void
1.443 mlelstv 860: rootconf(void)
861: {
1.445 mlelstv 862: if (booted_device != NULL)
863: rootconf_handle_wedges();
1.443 mlelstv 864:
865: setroot(booted_device, booted_partition);
866: }
867:
868: static void
1.260 christos 869: check_console(struct lwp *l)
1.93 mouse 870: {
1.391 dholland 871: struct vnode *vp;
1.93 mouse 872: int error;
873:
1.391 dholland 874: error = namei_simple_kernel("/dev/console",
875: NSM_FOLLOW_NOEMULROOT, &vp);
1.96 cgd 876: if (error == 0)
1.391 dholland 877: vrele(vp);
1.96 cgd 878: else if (error == ENOENT)
879: printf("warning: no /dev/console\n");
1.93 mouse 880: else
1.96 cgd 881: printf("warning: lookup /dev/console: error %d\n", error);
1.93 mouse 882: }
883:
1.61 mycroft 884: /*
885: * List of paths to try when searching for "init".
886: */
1.327 matt 887: static const char * const initpaths[] = {
1.61 mycroft 888: "/sbin/init",
889: "/sbin/oinit",
890: "/sbin/init.bak",
1.454 apb 891: "/rescue/init",
1.61 mycroft 892: NULL,
893: };
894:
895: /*
896: * Start the initial user process; try exec'ing each pathname in "initpaths".
897: * The program is invoked with one argument containing the boot flags.
898: */
899: static void
1.176 thorpej 900: start_init(void *arg)
1.61 mycroft 901: {
1.216 thorpej 902: struct lwp *l = arg;
903: struct proc *p = l->l_proc;
1.130 eeh 904: vaddr_t addr;
1.78 mycroft 905: struct sys_execve_args /* {
1.108 mycroft 906: syscallarg(const char *) path;
1.92 cgd 907: syscallarg(char * const *) argp;
908: syscallarg(char * const *) envp;
1.68 cgd 909: } */ args;
910: int options, i, error;
911: register_t retval[2];
1.66 mycroft 912: char flags[4], *flagsp;
1.202 lukem 913: const char *path, *slash;
1.474 christos 914: char *ucp, **uap, *arg0, *arg1, *argv[3];
1.202 lukem 915: char ipath[129];
916: int ipx, len;
1.61 mycroft 917:
1.76 cgd 918: /*
919: * Now in process 1.
920: */
1.146 gwr 921: strncpy(p->p_comm, "init", MAXCOMLEN);
1.163 thorpej 922:
923: /*
924: * Wait for main() to tell us that it's safe to exec.
925: */
1.356 ad 926: mutex_enter(proc_lock);
1.163 thorpej 927: while (start_init_exec == 0)
1.356 ad 928: cv_wait(&lbolt, proc_lock);
929: mutex_exit(proc_lock);
1.93 mouse 930:
931: /*
932: * This is not the right way to do this. We really should
933: * hand-craft a descriptor onto /dev/console to hand to init,
934: * but that's a _lot_ more work, and the benefit from this easy
935: * hack makes up for the "good is the enemy of the best" effect.
936: */
1.260 christos 937: check_console(l);
1.61 mycroft 938:
939: /*
940: * Need just enough stack to hold the faked-up "execve()" arguments.
941: */
1.211 chs 942: addr = (vaddr_t)STACK_ALLOC(USRSTACK, PAGE_SIZE);
1.205 sommerfe 943: if (uvm_map(&p->p_vmspace->vm_map, &addr, PAGE_SIZE,
1.482.2.2 pgoyette 944: NULL, UVM_UNKNOWN_OFFSET, 0,
945: UVM_MAPFLAG(UVM_PROT_RW, UVM_PROT_RW, UVM_INH_COPY,
946: UVM_ADV_NORMAL,
947: UVM_FLAG_FIXED|UVM_FLAG_OVERLAY|UVM_FLAG_COPYONW)) != 0)
1.114 mrg 948: panic("init: couldn't allocate argument space");
1.297 christos 949: p->p_vmspace->vm_maxsaddr = (void *)STACK_MAX(addr, PAGE_SIZE);
1.61 mycroft 950:
1.202 lukem 951: ipx = 0;
952: while (1) {
953: if (boothowto & RB_ASKNAME) {
954: printf("init path");
955: if (initpaths[ipx])
956: printf(" (default %s)", initpaths[ipx]);
957: printf(": ");
958: len = cngetsn(ipath, sizeof(ipath)-1);
1.371 tsutsui 959: if (len == 4 && strcmp(ipath, "halt") == 0) {
1.370 tsutsui 960: cpu_reboot(RB_HALT, NULL);
961: } else if (len == 6 && strcmp(ipath, "reboot") == 0) {
962: cpu_reboot(0, NULL);
963: #if defined(DDB)
964: } else if (len == 3 && strcmp(ipath, "ddb") == 0) {
965: console_debugger();
966: continue;
967: #endif
1.371 tsutsui 968: } else if (len > 0 && ipath[0] == '/') {
1.202 lukem 969: ipath[len] = '\0';
970: path = ipath;
1.371 tsutsui 971: } else if (len == 0 && initpaths[ipx] != NULL) {
972: path = initpaths[ipx++];
973: } else {
974: printf("use absolute path, ");
975: #if defined(DDB)
976: printf("\"ddb\", ");
977: #endif
978: printf("\"halt\", or \"reboot\"\n");
979: continue;
1.202 lukem 980: }
981: } else {
1.370 tsutsui 982: if ((path = initpaths[ipx++]) == NULL) {
983: ipx = 0;
984: boothowto |= RB_ASKNAME;
985: continue;
986: }
1.202 lukem 987: }
988:
1.211 chs 989: ucp = (char *)USRSTACK;
1.64 mycroft 990:
1.61 mycroft 991: /*
1.64 mycroft 992: * Construct the boot flag argument.
1.61 mycroft 993: */
1.66 mycroft 994: flagsp = flags;
995: *flagsp++ = '-';
1.61 mycroft 996: options = 0;
1.66 mycroft 997:
1.61 mycroft 998: if (boothowto & RB_SINGLE) {
1.64 mycroft 999: *flagsp++ = 's';
1.61 mycroft 1000: options = 1;
1001: }
1002: #ifdef notyet
1003: if (boothowto & RB_FASTBOOT) {
1.64 mycroft 1004: *flagsp++ = 'f';
1.61 mycroft 1005: options = 1;
1006: }
1007: #endif
1.64 mycroft 1008:
1009: /*
1010: * Move out the flags (arg 1), if necessary.
1011: */
1012: if (options != 0) {
1013: *flagsp++ = '\0';
1014: i = flagsp - flags;
1015: #ifdef DEBUG
1.415 hubertf 1016: aprint_normal("init: copying out flags `%s' %d\n", flags, i);
1.64 mycroft 1017: #endif
1.211 chs 1018: arg1 = STACK_ALLOC(ucp, i);
1019: ucp = STACK_MAX(arg1, i);
1.474 christos 1020: if ((error = copyout((void *)flags, arg1, i)) != 0)
1021: goto copyerr;
1022: } else
1023: arg1 = NULL;
1.61 mycroft 1024:
1025: /*
1026: * Move out the file name (also arg 0).
1027: */
1.64 mycroft 1028: i = strlen(path) + 1;
1029: #ifdef DEBUG
1.415 hubertf 1030: aprint_normal("init: copying out path `%s' %d\n", path, i);
1.202 lukem 1031: #else
1.203 lukem 1032: if (boothowto & RB_ASKNAME || path != initpaths[0])
1.202 lukem 1033: printf("init: trying %s\n", path);
1.64 mycroft 1034: #endif
1.211 chs 1035: arg0 = STACK_ALLOC(ucp, i);
1036: ucp = STACK_MAX(arg0, i);
1.474 christos 1037: if ((error = copyout(path, arg0, i)) != 0)
1038: goto copyerr;
1.61 mycroft 1039:
1040: /*
1041: * Move out the arg pointers.
1042: */
1.439 christos 1043: ucp = (void *)STACK_ALIGN(ucp, STACK_ALIGNBYTES);
1.479 macallan 1044: uap = (char **)STACK_ALLOC(ucp, sizeof(argv));
1.211 chs 1045: SCARG(&args, path) = arg0;
1046: SCARG(&args, argp) = uap;
1047: SCARG(&args, envp) = NULL;
1.142 mycroft 1048: slash = strrchr(path, '/');
1.474 christos 1049:
1050: argv[0] = slash ? arg0 + (slash + 1 - path) : arg0;
1051: argv[1] = arg1;
1052: argv[2] = NULL;
1.479 macallan 1053: if ((error = copyout(argv, uap, sizeof(argv))) != 0)
1.474 christos 1054: goto copyerr;
1.61 mycroft 1055:
1056: /*
1.481 palle 1057: * Now try to exec the program. If it can't for any reason
1.61 mycroft 1058: * other than it doesn't exist, complain.
1059: */
1.260 christos 1060: error = sys_execve(l, &args, retval);
1.179 thorpej 1061: if (error == 0 || error == EJUSTRETURN) {
1.292 ad 1062: KERNEL_UNLOCK_LAST(l);
1.61 mycroft 1063: return;
1.179 thorpej 1064: }
1.202 lukem 1065: printf("exec %s: error %d\n", path, error);
1.61 mycroft 1066: }
1.90 christos 1067: printf("init: not found\n");
1.61 mycroft 1068: panic("no init");
1.474 christos 1069: copyerr:
1070: panic("copyout %d", error);
1.61 mycroft 1071: }
1.345 yamt 1072:
1073: /*
1.448 para 1074: * calculate cache size (in bytes) from physmem and vsize.
1.345 yamt 1075: */
1076: vaddr_t
1.448 para 1077: calc_cache_size(vsize_t vsize, int pct, int va_pct)
1.345 yamt 1078: {
1079: paddr_t t;
1080:
1081: /* XXX should consider competing cache if any */
1082: /* XXX should consider submaps */
1.346 yamt 1083: t = (uintmax_t)physmem * pct / 100 * PAGE_SIZE;
1.448 para 1084: if (vsize != 0) {
1.346 yamt 1085: vsize = (uintmax_t)vsize * va_pct / 100;
1086: if (t > vsize) {
1087: t = vsize;
1088: }
1.345 yamt 1089: }
1090: return t;
1091: }
1.385 ad 1092:
1093: /*
1094: * Print the system start up banner.
1095: *
1096: * - Print a limited banner if AB_SILENT.
1097: * - Always send normal banner to the log.
1098: */
1.388 tsutsui 1099: #define MEM_PBUFSIZE sizeof("99999 MB")
1100:
1.385 ad 1101: void
1102: banner(void)
1103: {
1104: static char notice[] = " Notice: this software is "
1105: "protected by copyright";
1.386 ad 1106: char pbuf[81];
1.446 christos 1107: void (*pr)(const char *, ...) __printflike(1, 2);
1.385 ad 1108: int i;
1109:
1110: if ((boothowto & AB_SILENT) != 0) {
1111: snprintf(pbuf, sizeof(pbuf), "%s %s (%s)",
1112: ostype, osrelease, kernel_ident);
1.392 ad 1113: printf_nolog("%s", pbuf);
1.387 ad 1114: for (i = 80 - strlen(pbuf) - sizeof(notice); i > 0; i--)
1.385 ad 1115: printf(" ");
1.392 ad 1116: printf_nolog("%s\n", notice);
1.385 ad 1117: pr = aprint_normal;
1118: } else {
1119: pr = printf;
1120: }
1121:
1122: memset(pbuf, 0, sizeof(pbuf));
1123: (*pr)("%s%s", copyright, version);
1.388 tsutsui 1124: format_bytes(pbuf, MEM_PBUFSIZE, ctob((uint64_t)physmem));
1.385 ad 1125: (*pr)("total memory = %s\n", pbuf);
1.388 tsutsui 1126: format_bytes(pbuf, MEM_PBUFSIZE, ctob((uint64_t)uvmexp.free));
1.385 ad 1127: (*pr)("avail memory = %s\n", pbuf);
1128: }
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