1 /* 2 * Copyright (c) 1995 Terrence R. Lambert 3 * All rights reserved. 4 * 5 * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * (c) UNIX System Laboratories, Inc. 8 * All or some portions of this file are derived from material licensed 9 * to the University of California by American Telephone and Telegraph 10 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 11 * the permission of UNIX System Laboratories, Inc. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * @(#)init_main.c 8.9 (Berkeley) 1/21/94 42 * $FreeBSD: src/sys/kern/init_main.c,v 1.134.2.8 2003/06/06 20:21:32 tegge Exp $ 43 * $DragonFly: src/sys/kern/init_main.c,v 1.87 2008/06/07 11:37:23 mneumann Exp $ 44 */ 45 46 #include "opt_init_path.h" 47 48 #include <sys/param.h> 49 #include <sys/file.h> 50 #include <sys/filedesc.h> 51 #include <sys/kernel.h> 52 #include <sys/mount.h> 53 #include <sys/sysctl.h> 54 #include <sys/proc.h> 55 #include <sys/resourcevar.h> 56 #include <sys/signalvar.h> 57 #include <sys/systm.h> 58 #include <sys/vnode.h> 59 #include <sys/sysent.h> 60 #include <sys/reboot.h> 61 #include <sys/sysproto.h> 62 #include <sys/vmmeter.h> 63 #include <sys/unistd.h> 64 #include <sys/malloc.h> 65 #include <sys/machintr.h> 66 67 #include <sys/file2.h> 68 #include <sys/thread2.h> 69 #include <sys/sysref2.h> 70 #include <sys/spinlock2.h> 71 #include <sys/mplock2.h> 72 73 #include <machine/cpu.h> 74 75 #include <vm/vm.h> 76 #include <vm/vm_param.h> 77 #include <sys/lock.h> 78 #include <vm/pmap.h> 79 #include <vm/vm_map.h> 80 #include <vm/vm_extern.h> 81 #include <sys/user.h> 82 #include <sys/copyright.h> 83 84 int vfs_mountroot_devfs(void); 85 86 /* Components of the first process -- never freed. */ 87 static struct session session0; 88 static struct pgrp pgrp0; 89 static struct sigacts sigacts0; 90 static struct filedesc filedesc0; 91 static struct plimit limit0; 92 static struct vmspace vmspace0; 93 struct proc *initproc; 94 struct proc proc0; 95 struct lwp lwp0; 96 struct thread thread0; 97 98 int cmask = CMASK; 99 extern struct user *proc0paddr; 100 extern int fallback_elf_brand; 101 102 int boothowto = 0; /* initialized so that it can be patched */ 103 SYSCTL_INT(_debug, OID_AUTO, boothowto, CTLFLAG_RD, &boothowto, 0, ""); 104 105 /* 106 * This ensures that there is at least one entry so that the sysinit_set 107 * symbol is not undefined. A subsystem ID of SI_SPECIAL_DUMMY is never 108 * executed. 109 */ 110 SYSINIT(placeholder, SI_SPECIAL_DUMMY, SI_ORDER_ANY, NULL, NULL) 111 112 /* 113 * The sysinit table itself. Items are checked off as the are run. 114 * If we want to register new sysinit types, add them to newsysinit. 115 */ 116 SET_DECLARE(sysinit_set, struct sysinit); 117 struct sysinit **sysinit, **sysinit_end; 118 struct sysinit **newsysinit, **newsysinit_end; 119 120 121 /* 122 * Merge a new sysinit set into the current set, reallocating it if 123 * necessary. This can only be called after malloc is running. 124 */ 125 void 126 sysinit_add(struct sysinit **set, struct sysinit **set_end) 127 { 128 struct sysinit **newset; 129 struct sysinit **sipp; 130 struct sysinit **xipp; 131 int count; 132 133 count = set_end - set; 134 if (newsysinit) 135 count += newsysinit_end - newsysinit; 136 else 137 count += sysinit_end - sysinit; 138 newset = kmalloc(count * sizeof(*sipp), M_TEMP, M_WAITOK); 139 xipp = newset; 140 if (newsysinit) { 141 for (sipp = newsysinit; sipp < newsysinit_end; sipp++) 142 *xipp++ = *sipp; 143 } else { 144 for (sipp = sysinit; sipp < sysinit_end; sipp++) 145 *xipp++ = *sipp; 146 } 147 for (sipp = set; sipp < set_end; sipp++) 148 *xipp++ = *sipp; 149 if (newsysinit) 150 kfree(newsysinit, M_TEMP); 151 newsysinit = newset; 152 newsysinit_end = newset + count; 153 } 154 155 /* 156 * Callbacks from machine-dependant startup code (e.g. init386) to set 157 * up low level entities related to cpu #0's globaldata. 158 * 159 * Called from very low level boot code. 160 */ 161 void 162 mi_proc0init(struct globaldata *gd, struct user *proc0paddr) 163 { 164 lwkt_init_thread(&thread0, proc0paddr, LWKT_THREAD_STACK, 0, gd); 165 lwkt_set_comm(&thread0, "thread0"); 166 RB_INIT(&proc0.p_lwp_tree); 167 spin_init(&proc0.p_spin); 168 proc0.p_lasttid = 0; /* +1 = next TID */ 169 lwp_rb_tree_RB_INSERT(&proc0.p_lwp_tree, &lwp0); 170 lwp0.lwp_thread = &thread0; 171 lwp0.lwp_proc = &proc0; 172 proc0.p_usched = usched_init(); 173 lwp0.lwp_cpumask = 0xFFFFFFFF; 174 varsymset_init(&proc0.p_varsymset, NULL); 175 thread0.td_flags |= TDF_RUNNING; 176 thread0.td_proc = &proc0; 177 thread0.td_lwp = &lwp0; 178 thread0.td_switch = cpu_lwkt_switch; 179 lwkt_schedule_self(curthread); 180 } 181 182 /* 183 * System startup; initialize the world, create process 0, mount root 184 * filesystem, and fork to create init and pagedaemon. Most of the 185 * hard work is done in the lower-level initialization routines including 186 * startup(), which does memory initialization and autoconfiguration. 187 * 188 * This allows simple addition of new kernel subsystems that require 189 * boot time initialization. It also allows substitution of subsystem 190 * (for instance, a scheduler, kernel profiler, or VM system) by object 191 * module. Finally, it allows for optional "kernel threads". 192 */ 193 void 194 mi_startup(void) 195 { 196 struct sysinit *sip; /* system initialization*/ 197 struct sysinit **sipp; /* system initialization*/ 198 struct sysinit **xipp; /* interior loop of sort*/ 199 struct sysinit *save; /* bubble*/ 200 201 if (sysinit == NULL) { 202 sysinit = SET_BEGIN(sysinit_set); 203 #if defined(__amd64__) && defined(_KERNEL_VIRTUAL) 204 /* 205 * XXX For whatever reason, on 64-bit vkernels 206 * the value of sysinit obtained from the 207 * linker set is wrong. 208 */ 209 if ((long)sysinit % 8 != 0) { 210 kprintf("Fixing sysinit value...\n"); 211 sysinit = (long)sysinit + 4; 212 } 213 #endif 214 sysinit_end = SET_LIMIT(sysinit_set); 215 } 216 #if defined(__amd64__) && defined(_KERNEL_VIRTUAL) 217 KKASSERT((long)sysinit % 8 == 0); 218 #endif 219 220 restart: 221 /* 222 * Perform a bubble sort of the system initialization objects by 223 * their subsystem (primary key) and order (secondary key). 224 */ 225 for (sipp = sysinit; sipp < sysinit_end; sipp++) { 226 for (xipp = sipp + 1; xipp < sysinit_end; xipp++) { 227 if ((*sipp)->subsystem < (*xipp)->subsystem || 228 ((*sipp)->subsystem == (*xipp)->subsystem && 229 (*sipp)->order <= (*xipp)->order)) 230 continue; /* skip*/ 231 save = *sipp; 232 *sipp = *xipp; 233 *xipp = save; 234 } 235 } 236 237 /* 238 * Traverse the (now) ordered list of system initialization tasks. 239 * Perform each task, and continue on to the next task. 240 * 241 * The last item on the list is expected to be the scheduler, 242 * which will not return. 243 */ 244 for (sipp = sysinit; sipp < sysinit_end; sipp++) { 245 sip = *sipp; 246 if (sip->subsystem == SI_SPECIAL_DUMMY) 247 continue; /* skip dummy task(s)*/ 248 249 if (sip->subsystem == SI_SPECIAL_DONE) 250 continue; 251 252 /* Call function */ 253 (*(sip->func))(sip->udata); 254 255 /* Check off the one we're just done */ 256 sip->subsystem = SI_SPECIAL_DONE; 257 258 /* Check if we've installed more sysinit items via KLD */ 259 if (newsysinit != NULL) { 260 if (sysinit != SET_BEGIN(sysinit_set)) 261 kfree(sysinit, M_TEMP); 262 sysinit = newsysinit; 263 sysinit_end = newsysinit_end; 264 newsysinit = NULL; 265 newsysinit_end = NULL; 266 goto restart; 267 } 268 } 269 270 panic("Shouldn't get here!"); 271 /* NOTREACHED*/ 272 } 273 274 275 /* 276 *************************************************************************** 277 **** 278 **** The following SYSINIT's belong elsewhere, but have not yet 279 **** been moved. 280 **** 281 *************************************************************************** 282 */ 283 static void 284 print_caddr_t(void *data __unused) 285 { 286 kprintf("%s", (char *)data); 287 } 288 SYSINIT(announce, SI_BOOT1_COPYRIGHT, SI_ORDER_FIRST, print_caddr_t, copyright) 289 290 /* 291 * Leave the critical section that protected us from spurious interrupts 292 * so device probes work. 293 */ 294 static void 295 leavecrit(void *dummy __unused) 296 { 297 MachIntrABI.finalize(); 298 cpu_enable_intr(); 299 MachIntrABI.cleanup(); 300 crit_exit(); 301 KKASSERT(!IN_CRITICAL_SECT(curthread)); 302 303 if (bootverbose) 304 kprintf("Leaving critical section, allowing interrupts\n"); 305 } 306 SYSINIT(leavecrit, SI_BOOT2_LEAVE_CRIT, SI_ORDER_ANY, leavecrit, NULL) 307 308 /* 309 * This is called after the threading system is up and running, 310 * including the softclock, clock interrupts, and SMP. 311 */ 312 static void 313 tsleepworks(void *dummy __unused) 314 { 315 tsleep_now_works = 1; 316 } 317 SYSINIT(tsleepworks, SI_BOOT2_FINISH_SMP, SI_ORDER_SECOND, tsleepworks, NULL) 318 319 /* 320 * This is called after devices have configured. Tell the kernel we are 321 * no longer in cold boot. 322 */ 323 static void 324 endofcoldboot(void *dummy __unused) 325 { 326 cold = 0; 327 } 328 SYSINIT(endofcoldboot, SI_SUB_ISWARM, SI_ORDER_ANY, endofcoldboot, NULL) 329 330 /* 331 *************************************************************************** 332 **** 333 **** The two following SYSINT's are proc0 specific glue code. I am not 334 **** convinced that they can not be safely combined, but their order of 335 **** operation has been maintained as the same as the original init_main.c 336 **** for right now. 337 **** 338 **** These probably belong in init_proc.c or kern_proc.c, since they 339 **** deal with proc0 (the fork template process). 340 **** 341 *************************************************************************** 342 */ 343 /* ARGSUSED*/ 344 static void 345 proc0_init(void *dummy __unused) 346 { 347 struct proc *p; 348 struct lwp *lp; 349 350 p = &proc0; 351 lp = &lwp0; 352 353 /* 354 * Initialize process and pgrp structures. 355 */ 356 procinit(); 357 358 /* 359 * additional VM structures 360 */ 361 vm_init2(); 362 363 /* 364 * Create process 0 (the swapper). 365 */ 366 LIST_INSERT_HEAD(&allproc, p, p_list); 367 p->p_pgrp = &pgrp0; 368 LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash); 369 LIST_INIT(&pgrp0.pg_members); 370 LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist); 371 372 pgrp0.pg_session = &session0; 373 session0.s_count = 1; 374 session0.s_leader = p; 375 376 p->p_sysent = &aout_sysvec; 377 378 p->p_flag = P_SYSTEM; 379 p->p_stat = SACTIVE; 380 lp->lwp_stat = LSRUN; 381 p->p_nice = NZERO; 382 p->p_rtprio.type = RTP_PRIO_NORMAL; 383 p->p_rtprio.prio = 0; 384 lp->lwp_rtprio = p->p_rtprio; 385 386 p->p_peers = 0; 387 p->p_leader = p; 388 389 bcopy("swapper", p->p_comm, sizeof ("swapper")); 390 bcopy("swapper", thread0.td_comm, sizeof ("swapper")); 391 392 /* Create credentials. */ 393 p->p_ucred = crget(); 394 p->p_ucred->cr_ruidinfo = uifind(0); 395 p->p_ucred->cr_ngroups = 1; /* group 0 */ 396 p->p_ucred->cr_uidinfo = uifind(0); 397 thread0.td_ucred = crhold(p->p_ucred); /* bootstrap fork1() */ 398 399 /* Don't jail it */ 400 p->p_ucred->cr_prison = NULL; 401 402 /* Create sigacts. */ 403 p->p_sigacts = &sigacts0; 404 p->p_sigacts->ps_refcnt = 1; 405 406 /* Initialize signal state for process 0. */ 407 siginit(p); 408 409 /* Create the file descriptor table. */ 410 fdinit_bootstrap(p, &filedesc0, cmask); 411 412 /* Create the limits structures. */ 413 plimit_init0(&limit0); 414 p->p_limit = &limit0; 415 416 /* Allocate a prototype map so we have something to fork. */ 417 pmap_pinit0(vmspace_pmap(&vmspace0)); 418 p->p_vmspace = &vmspace0; 419 lp->lwp_vmspace = p->p_vmspace; 420 sysref_init(&vmspace0.vm_sysref, &vmspace_sysref_class); 421 vm_map_init(&vmspace0.vm_map, 422 round_page(VM_MIN_USER_ADDRESS), 423 trunc_page(VM_MAX_USER_ADDRESS), 424 vmspace_pmap(&vmspace0)); 425 sysref_activate(&vmspace0.vm_sysref); 426 427 kqueue_init(&lwp0.lwp_kqueue, &filedesc0); 428 429 /* 430 * Charge root for one process. 431 */ 432 (void)chgproccnt(p->p_ucred->cr_uidinfo, 1, 0); 433 vm_init_limits(p); 434 } 435 SYSINIT(p0init, SI_BOOT2_PROC0, SI_ORDER_FIRST, proc0_init, NULL) 436 437 static int proc0_post_callback(struct proc *p, void *data __unused); 438 439 /* ARGSUSED*/ 440 static void 441 proc0_post(void *dummy __unused) 442 { 443 struct timespec ts; 444 445 /* 446 * Now we can look at the time, having had a chance to verify the 447 * time from the file system. Pretend that proc0 started now. 448 */ 449 allproc_scan(proc0_post_callback, NULL); 450 451 /* 452 * Give the ``random'' number generator a thump. 453 * XXX: Does read_random() contain enough bits to be used here ? 454 */ 455 nanotime(&ts); 456 skrandom(ts.tv_sec ^ ts.tv_nsec); 457 } 458 459 static int 460 proc0_post_callback(struct proc *p, void *data __unused) 461 { 462 microtime(&p->p_start); 463 return(0); 464 } 465 466 SYSINIT(p0post, SI_SUB_PROC0_POST, SI_ORDER_FIRST, proc0_post, NULL) 467 468 /* 469 *************************************************************************** 470 **** 471 **** The following SYSINIT's and glue code should be moved to the 472 **** respective files on a per subsystem basis. 473 **** 474 *************************************************************************** 475 */ 476 477 478 /* 479 *************************************************************************** 480 **** 481 **** The following code probably belongs in another file, like 482 **** kern/init_init.c. 483 **** 484 *************************************************************************** 485 */ 486 487 /* 488 * List of paths to try when searching for "init". 489 */ 490 static char init_path[MAXPATHLEN] = 491 #ifdef INIT_PATH 492 __XSTRING(INIT_PATH); 493 #else 494 "/sbin/init:/sbin/oinit:/sbin/init.bak"; 495 #endif 496 SYSCTL_STRING(_kern, OID_AUTO, init_path, CTLFLAG_RD, init_path, 0, ""); 497 498 /* 499 * Start the initial user process; try exec'ing each pathname in init_path. 500 * The program is invoked with one argument containing the boot flags. 501 * 502 * The MP lock is held on entry. 503 */ 504 static void 505 start_init(void *dummy, struct trapframe *frame) 506 { 507 vm_offset_t addr; 508 struct execve_args args; 509 int options, error; 510 char *var, *path, *next, *s; 511 char *ucp, **uap, *arg0, *arg1; 512 struct proc *p; 513 struct lwp *lp; 514 struct mount *mp; 515 struct vnode *vp; 516 517 p = curproc; 518 519 lp = ONLY_LWP_IN_PROC(p); 520 521 /* Get the vnode for '/'. Set p->p_fd->fd_cdir to reference it. */ 522 mp = mountlist_boot_getfirst(); 523 if (VFS_ROOT(mp, &vp)) 524 panic("cannot find root vnode"); 525 if (mp->mnt_ncmountpt.ncp == NULL) { 526 cache_allocroot(&mp->mnt_ncmountpt, mp, vp); 527 cache_unlock(&mp->mnt_ncmountpt); /* leave ref intact */ 528 } 529 p->p_fd->fd_cdir = vp; 530 vref(p->p_fd->fd_cdir); 531 p->p_fd->fd_rdir = vp; 532 vref(p->p_fd->fd_rdir); 533 vfs_cache_setroot(vp, cache_hold(&mp->mnt_ncmountpt)); 534 vn_unlock(vp); /* leave ref intact */ 535 cache_copy(&mp->mnt_ncmountpt, &p->p_fd->fd_ncdir); 536 cache_copy(&mp->mnt_ncmountpt, &p->p_fd->fd_nrdir); 537 538 kprintf("Mounting devfs\n"); 539 vfs_mountroot_devfs(); 540 541 /* 542 * Need just enough stack to hold the faked-up "execve()" arguments. 543 */ 544 addr = trunc_page(USRSTACK - PAGE_SIZE); 545 error = vm_map_find(&p->p_vmspace->vm_map, NULL, 0, &addr, 546 PAGE_SIZE, PAGE_SIZE, 547 FALSE, VM_MAPTYPE_NORMAL, 548 VM_PROT_ALL, VM_PROT_ALL, 549 0); 550 if (error) 551 panic("init: couldn't allocate argument space"); 552 p->p_vmspace->vm_maxsaddr = (caddr_t)addr; 553 p->p_vmspace->vm_ssize = 1; 554 555 if ((var = kgetenv("init_path")) != NULL) { 556 strncpy(init_path, var, sizeof init_path); 557 init_path[sizeof init_path - 1] = 0; 558 } 559 if ((var = kgetenv("kern.fallback_elf_brand")) != NULL) 560 fallback_elf_brand = strtol(var, NULL, 0); 561 562 for (path = init_path; *path != '\0'; path = next) { 563 while (*path == ':') 564 path++; 565 if (*path == '\0') 566 break; 567 for (next = path; *next != '\0' && *next != ':'; next++) 568 /* nothing */ ; 569 if (bootverbose) 570 kprintf("start_init: trying %.*s\n", (int)(next - path), 571 path); 572 573 /* 574 * Move out the boot flag argument. 575 */ 576 options = 0; 577 ucp = (char *)USRSTACK; 578 (void)subyte(--ucp, 0); /* trailing zero */ 579 if (boothowto & RB_SINGLE) { 580 (void)subyte(--ucp, 's'); 581 options = 1; 582 } 583 #ifdef notyet 584 if (boothowto & RB_FASTBOOT) { 585 (void)subyte(--ucp, 'f'); 586 options = 1; 587 } 588 #endif 589 590 #ifdef BOOTCDROM 591 (void)subyte(--ucp, 'C'); 592 options = 1; 593 #endif 594 if (options == 0) 595 (void)subyte(--ucp, '-'); 596 (void)subyte(--ucp, '-'); /* leading hyphen */ 597 arg1 = ucp; 598 599 /* 600 * Move out the file name (also arg 0). 601 */ 602 (void)subyte(--ucp, 0); 603 for (s = next - 1; s >= path; s--) 604 (void)subyte(--ucp, *s); 605 arg0 = ucp; 606 607 /* 608 * Move out the arg pointers. 609 */ 610 uap = (char **)((intptr_t)ucp & ~(sizeof(intptr_t)-1)); 611 (void)suword((caddr_t)--uap, (long)0); /* terminator */ 612 (void)suword((caddr_t)--uap, (long)(intptr_t)arg1); 613 (void)suword((caddr_t)--uap, (long)(intptr_t)arg0); 614 615 /* 616 * Point at the arguments. 617 */ 618 args.fname = arg0; 619 args.argv = uap; 620 args.envv = NULL; 621 622 /* 623 * Now try to exec the program. If can't for any reason 624 * other than it doesn't exist, complain. 625 * 626 * Otherwise, return via fork_trampoline() all the way 627 * to user mode as init! 628 * 629 * WARNING! We may have been moved to another cpu after 630 * acquiring the current user process designation. The 631 * MP lock will migrate with us though so we still have to 632 * release it. 633 */ 634 if ((error = sys_execve(&args)) == 0) { 635 rel_mplock(); 636 lp->lwp_proc->p_usched->acquire_curproc(lp); 637 return; 638 } 639 if (error != ENOENT) 640 kprintf("exec %.*s: error %d\n", (int)(next - path), 641 path, error); 642 } 643 kprintf("init: not found in path %s\n", init_path); 644 panic("no init"); 645 } 646 647 /* 648 * Like kthread_create(), but runs in it's own address space. 649 * We do this early to reserve pid 1. 650 * 651 * Note special case - do not make it runnable yet. Other work 652 * in progress will change this more. 653 */ 654 static void 655 create_init(const void *udata __unused) 656 { 657 int error; 658 struct lwp *lp; 659 660 crit_enter(); 661 error = fork1(&lwp0, RFFDG | RFPROC, &initproc); 662 if (error) 663 panic("cannot fork init: %d", error); 664 initproc->p_flag |= P_SYSTEM; 665 lp = ONLY_LWP_IN_PROC(initproc); 666 cpu_set_fork_handler(lp, start_init, NULL); 667 crit_exit(); 668 } 669 SYSINIT(init, SI_SUB_CREATE_INIT, SI_ORDER_FIRST, create_init, NULL) 670 671 /* 672 * Make it runnable now. 673 */ 674 static void 675 kick_init(const void *udata __unused) 676 { 677 start_forked_proc(&lwp0, initproc); 678 } 679 SYSINIT(kickinit, SI_SUB_KTHREAD_INIT, SI_ORDER_FIRST, kick_init, NULL) 680 681 /* 682 * Machine independant globaldata initialization 683 * 684 * WARNING! Called from early boot, 'mycpu' may not work yet. 685 */ 686 void 687 mi_gdinit(struct globaldata *gd, int cpuid) 688 { 689 TAILQ_INIT(&gd->gd_systimerq); 690 gd->gd_sysid_alloc = cpuid; /* prime low bits for cpu lookup */ 691 gd->gd_cpuid = cpuid; 692 gd->gd_cpumask = (cpumask_t)1 << cpuid; 693 lwkt_gdinit(gd); 694 vm_map_entry_reserve_cpu_init(gd); 695 sleep_gdinit(gd); 696 } 697 698