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 sysinit_end = SET_LIMIT(sysinit_set); 204 } 205 206 restart: 207 /* 208 * Perform a bubble sort of the system initialization objects by 209 * their subsystem (primary key) and order (secondary key). 210 */ 211 for (sipp = sysinit; sipp < sysinit_end; sipp++) { 212 for (xipp = sipp + 1; xipp < sysinit_end; xipp++) { 213 if ((*sipp)->subsystem < (*xipp)->subsystem || 214 ((*sipp)->subsystem == (*xipp)->subsystem && 215 (*sipp)->order <= (*xipp)->order)) 216 continue; /* skip*/ 217 save = *sipp; 218 *sipp = *xipp; 219 *xipp = save; 220 } 221 } 222 223 /* 224 * Traverse the (now) ordered list of system initialization tasks. 225 * Perform each task, and continue on to the next task. 226 * 227 * The last item on the list is expected to be the scheduler, 228 * which will not return. 229 */ 230 for (sipp = sysinit; sipp < sysinit_end; sipp++) { 231 sip = *sipp; 232 if (sip->subsystem == SI_SPECIAL_DUMMY) 233 continue; /* skip dummy task(s)*/ 234 235 if (sip->subsystem == SI_SPECIAL_DONE) 236 continue; 237 238 /* Call function */ 239 (*(sip->func))(sip->udata); 240 241 /* Check off the one we're just done */ 242 sip->subsystem = SI_SPECIAL_DONE; 243 244 /* Check if we've installed more sysinit items via KLD */ 245 if (newsysinit != NULL) { 246 if (sysinit != SET_BEGIN(sysinit_set)) 247 kfree(sysinit, M_TEMP); 248 sysinit = newsysinit; 249 sysinit_end = newsysinit_end; 250 newsysinit = NULL; 251 newsysinit_end = NULL; 252 goto restart; 253 } 254 } 255 256 panic("Shouldn't get here!"); 257 /* NOTREACHED*/ 258 } 259 260 261 /* 262 *************************************************************************** 263 **** 264 **** The following SYSINIT's belong elsewhere, but have not yet 265 **** been moved. 266 **** 267 *************************************************************************** 268 */ 269 static void 270 print_caddr_t(void *data __unused) 271 { 272 kprintf("%s", (char *)data); 273 } 274 SYSINIT(announce, SI_BOOT1_COPYRIGHT, SI_ORDER_FIRST, print_caddr_t, copyright) 275 276 /* 277 * Leave the critical section that protected us from spurious interrupts 278 * so device probes work. 279 */ 280 static void 281 leavecrit(void *dummy __unused) 282 { 283 MachIntrABI.finalize(); 284 cpu_enable_intr(); 285 MachIntrABI.cleanup(); 286 crit_exit(); 287 KKASSERT(!IN_CRITICAL_SECT(curthread)); 288 289 if (bootverbose) 290 kprintf("Leaving critical section, allowing interrupts\n"); 291 } 292 SYSINIT(leavecrit, SI_BOOT2_LEAVE_CRIT, SI_ORDER_ANY, leavecrit, NULL) 293 294 /* 295 * This is called after the threading system is up and running, 296 * including the softclock, clock interrupts, and SMP. 297 */ 298 static void 299 tsleepworks(void *dummy __unused) 300 { 301 tsleep_now_works = 1; 302 } 303 SYSINIT(tsleepworks, SI_BOOT2_FINISH_SMP, SI_ORDER_SECOND, tsleepworks, NULL) 304 305 /* 306 * This is called after devices have configured. Tell the kernel we are 307 * no longer in cold boot. 308 */ 309 static void 310 endofcoldboot(void *dummy __unused) 311 { 312 cold = 0; 313 } 314 SYSINIT(endofcoldboot, SI_SUB_ISWARM, SI_ORDER_ANY, endofcoldboot, NULL) 315 316 /* 317 *************************************************************************** 318 **** 319 **** The two following SYSINT's are proc0 specific glue code. I am not 320 **** convinced that they can not be safely combined, but their order of 321 **** operation has been maintained as the same as the original init_main.c 322 **** for right now. 323 **** 324 **** These probably belong in init_proc.c or kern_proc.c, since they 325 **** deal with proc0 (the fork template process). 326 **** 327 *************************************************************************** 328 */ 329 /* ARGSUSED*/ 330 static void 331 proc0_init(void *dummy __unused) 332 { 333 struct proc *p; 334 struct lwp *lp; 335 336 p = &proc0; 337 lp = &lwp0; 338 339 /* 340 * Initialize process and pgrp structures. 341 */ 342 procinit(); 343 344 /* 345 * additional VM structures 346 */ 347 vm_init2(); 348 349 /* 350 * Create process 0 (the swapper). 351 */ 352 LIST_INSERT_HEAD(&allproc, p, p_list); 353 p->p_pgrp = &pgrp0; 354 LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash); 355 LIST_INIT(&pgrp0.pg_members); 356 LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist); 357 358 pgrp0.pg_session = &session0; 359 session0.s_count = 1; 360 session0.s_leader = p; 361 362 p->p_sysent = &aout_sysvec; 363 364 p->p_flag = P_SYSTEM; 365 p->p_stat = SACTIVE; 366 lp->lwp_stat = LSRUN; 367 p->p_nice = NZERO; 368 p->p_rtprio.type = RTP_PRIO_NORMAL; 369 p->p_rtprio.prio = 0; 370 lp->lwp_rtprio = p->p_rtprio; 371 372 p->p_peers = 0; 373 p->p_leader = p; 374 375 bcopy("swapper", p->p_comm, sizeof ("swapper")); 376 bcopy("swapper", thread0.td_comm, sizeof ("swapper")); 377 378 /* Create credentials. */ 379 p->p_ucred = crget(); 380 p->p_ucred->cr_ruidinfo = uifind(0); 381 p->p_ucred->cr_ngroups = 1; /* group 0 */ 382 p->p_ucred->cr_uidinfo = uifind(0); 383 thread0.td_ucred = crhold(p->p_ucred); /* bootstrap fork1() */ 384 385 /* Don't jail it */ 386 p->p_ucred->cr_prison = NULL; 387 388 /* Create sigacts. */ 389 p->p_sigacts = &sigacts0; 390 p->p_sigacts->ps_refcnt = 1; 391 392 /* Initialize signal state for process 0. */ 393 siginit(p); 394 395 /* Create the file descriptor table. */ 396 fdinit_bootstrap(p, &filedesc0, cmask); 397 398 /* Create the limits structures. */ 399 plimit_init0(&limit0); 400 p->p_limit = &limit0; 401 402 /* Allocate a prototype map so we have something to fork. */ 403 pmap_pinit0(vmspace_pmap(&vmspace0)); 404 p->p_vmspace = &vmspace0; 405 lp->lwp_vmspace = p->p_vmspace; 406 sysref_init(&vmspace0.vm_sysref, &vmspace_sysref_class); 407 vm_map_init(&vmspace0.vm_map, 408 round_page(VM_MIN_USER_ADDRESS), 409 trunc_page(VM_MAX_USER_ADDRESS), 410 vmspace_pmap(&vmspace0)); 411 sysref_activate(&vmspace0.vm_sysref); 412 413 /* 414 * Charge root for one process. 415 */ 416 (void)chgproccnt(p->p_ucred->cr_uidinfo, 1, 0); 417 vm_init_limits(p); 418 } 419 SYSINIT(p0init, SI_BOOT2_PROC0, SI_ORDER_FIRST, proc0_init, NULL) 420 421 static int proc0_post_callback(struct proc *p, void *data __unused); 422 423 /* ARGSUSED*/ 424 static void 425 proc0_post(void *dummy __unused) 426 { 427 struct timespec ts; 428 429 /* 430 * Now we can look at the time, having had a chance to verify the 431 * time from the file system. Pretend that proc0 started now. 432 */ 433 allproc_scan(proc0_post_callback, NULL); 434 435 /* 436 * Give the ``random'' number generator a thump. 437 * XXX: Does read_random() contain enough bits to be used here ? 438 */ 439 nanotime(&ts); 440 skrandom(ts.tv_sec ^ ts.tv_nsec); 441 } 442 443 static int 444 proc0_post_callback(struct proc *p, void *data __unused) 445 { 446 microtime(&p->p_start); 447 return(0); 448 } 449 450 SYSINIT(p0post, SI_SUB_PROC0_POST, SI_ORDER_FIRST, proc0_post, NULL) 451 452 /* 453 *************************************************************************** 454 **** 455 **** The following SYSINIT's and glue code should be moved to the 456 **** respective files on a per subsystem basis. 457 **** 458 *************************************************************************** 459 */ 460 461 462 /* 463 *************************************************************************** 464 **** 465 **** The following code probably belongs in another file, like 466 **** kern/init_init.c. 467 **** 468 *************************************************************************** 469 */ 470 471 /* 472 * List of paths to try when searching for "init". 473 */ 474 static char init_path[MAXPATHLEN] = 475 #ifdef INIT_PATH 476 __XSTRING(INIT_PATH); 477 #else 478 "/sbin/init:/sbin/oinit:/sbin/init.bak"; 479 #endif 480 SYSCTL_STRING(_kern, OID_AUTO, init_path, CTLFLAG_RD, init_path, 0, ""); 481 482 /* 483 * Start the initial user process; try exec'ing each pathname in init_path. 484 * The program is invoked with one argument containing the boot flags. 485 * 486 * The MP lock is held on entry. 487 */ 488 static void 489 start_init(void *dummy, struct trapframe *frame) 490 { 491 vm_offset_t addr; 492 struct execve_args args; 493 int options, error; 494 char *var, *path, *next, *s; 495 char *ucp, **uap, *arg0, *arg1; 496 struct proc *p; 497 struct lwp *lp; 498 struct mount *mp; 499 struct vnode *vp; 500 501 p = curproc; 502 503 lp = ONLY_LWP_IN_PROC(p); 504 505 /* Get the vnode for '/'. Set p->p_fd->fd_cdir to reference it. */ 506 mp = mountlist_boot_getfirst(); 507 if (VFS_ROOT(mp, &vp)) 508 panic("cannot find root vnode"); 509 if (mp->mnt_ncmountpt.ncp == NULL) { 510 cache_allocroot(&mp->mnt_ncmountpt, mp, vp); 511 cache_unlock(&mp->mnt_ncmountpt); /* leave ref intact */ 512 } 513 p->p_fd->fd_cdir = vp; 514 vref(p->p_fd->fd_cdir); 515 p->p_fd->fd_rdir = vp; 516 vref(p->p_fd->fd_rdir); 517 vfs_cache_setroot(vp, cache_hold(&mp->mnt_ncmountpt)); 518 vn_unlock(vp); /* leave ref intact */ 519 cache_copy(&mp->mnt_ncmountpt, &p->p_fd->fd_ncdir); 520 cache_copy(&mp->mnt_ncmountpt, &p->p_fd->fd_nrdir); 521 522 kprintf("Mounting devfs\n"); 523 vfs_mountroot_devfs(); 524 525 /* 526 * Need just enough stack to hold the faked-up "execve()" arguments. 527 */ 528 addr = trunc_page(USRSTACK - PAGE_SIZE); 529 error = vm_map_find(&p->p_vmspace->vm_map, NULL, 0, &addr, PAGE_SIZE, 530 FALSE, 531 VM_MAPTYPE_NORMAL, 532 VM_PROT_ALL, VM_PROT_ALL, 533 0); 534 if (error) 535 panic("init: couldn't allocate argument space"); 536 p->p_vmspace->vm_maxsaddr = (caddr_t)addr; 537 p->p_vmspace->vm_ssize = 1; 538 539 if ((var = kgetenv("init_path")) != NULL) { 540 strncpy(init_path, var, sizeof init_path); 541 init_path[sizeof init_path - 1] = 0; 542 } 543 if ((var = kgetenv("kern.fallback_elf_brand")) != NULL) 544 fallback_elf_brand = strtol(var, NULL, 0); 545 546 for (path = init_path; *path != '\0'; path = next) { 547 while (*path == ':') 548 path++; 549 if (*path == '\0') 550 break; 551 for (next = path; *next != '\0' && *next != ':'; next++) 552 /* nothing */ ; 553 if (bootverbose) 554 kprintf("start_init: trying %.*s\n", (int)(next - path), 555 path); 556 557 /* 558 * Move out the boot flag argument. 559 */ 560 options = 0; 561 ucp = (char *)USRSTACK; 562 (void)subyte(--ucp, 0); /* trailing zero */ 563 if (boothowto & RB_SINGLE) { 564 (void)subyte(--ucp, 's'); 565 options = 1; 566 } 567 #ifdef notyet 568 if (boothowto & RB_FASTBOOT) { 569 (void)subyte(--ucp, 'f'); 570 options = 1; 571 } 572 #endif 573 574 #ifdef BOOTCDROM 575 (void)subyte(--ucp, 'C'); 576 options = 1; 577 #endif 578 if (options == 0) 579 (void)subyte(--ucp, '-'); 580 (void)subyte(--ucp, '-'); /* leading hyphen */ 581 arg1 = ucp; 582 583 /* 584 * Move out the file name (also arg 0). 585 */ 586 (void)subyte(--ucp, 0); 587 for (s = next - 1; s >= path; s--) 588 (void)subyte(--ucp, *s); 589 arg0 = ucp; 590 591 /* 592 * Move out the arg pointers. 593 */ 594 uap = (char **)((intptr_t)ucp & ~(sizeof(intptr_t)-1)); 595 (void)suword((caddr_t)--uap, (long)0); /* terminator */ 596 (void)suword((caddr_t)--uap, (long)(intptr_t)arg1); 597 (void)suword((caddr_t)--uap, (long)(intptr_t)arg0); 598 599 /* 600 * Point at the arguments. 601 */ 602 args.fname = arg0; 603 args.argv = uap; 604 args.envv = NULL; 605 606 /* 607 * Now try to exec the program. If can't for any reason 608 * other than it doesn't exist, complain. 609 * 610 * Otherwise, return via fork_trampoline() all the way 611 * to user mode as init! 612 * 613 * WARNING! We may have been moved to another cpu after 614 * acquiring the current user process designation. The 615 * MP lock will migrate with us though so we still have to 616 * release it. 617 */ 618 if ((error = sys_execve(&args)) == 0) { 619 rel_mplock(); 620 lp->lwp_proc->p_usched->acquire_curproc(lp); 621 return; 622 } 623 if (error != ENOENT) 624 kprintf("exec %.*s: error %d\n", (int)(next - path), 625 path, error); 626 } 627 kprintf("init: not found in path %s\n", init_path); 628 panic("no init"); 629 } 630 631 /* 632 * Like kthread_create(), but runs in it's own address space. 633 * We do this early to reserve pid 1. 634 * 635 * Note special case - do not make it runnable yet. Other work 636 * in progress will change this more. 637 */ 638 static void 639 create_init(const void *udata __unused) 640 { 641 int error; 642 struct lwp *lp; 643 644 crit_enter(); 645 error = fork1(&lwp0, RFFDG | RFPROC, &initproc); 646 if (error) 647 panic("cannot fork init: %d", error); 648 initproc->p_flag |= P_SYSTEM; 649 lp = ONLY_LWP_IN_PROC(initproc); 650 cpu_set_fork_handler(lp, start_init, NULL); 651 crit_exit(); 652 } 653 SYSINIT(init, SI_SUB_CREATE_INIT, SI_ORDER_FIRST, create_init, NULL) 654 655 /* 656 * Make it runnable now. 657 */ 658 static void 659 kick_init(const void *udata __unused) 660 { 661 start_forked_proc(&lwp0, initproc); 662 } 663 SYSINIT(kickinit, SI_SUB_KTHREAD_INIT, SI_ORDER_FIRST, kick_init, NULL) 664 665 /* 666 * Machine independant globaldata initialization 667 * 668 * WARNING! Called from early boot, 'mycpu' may not work yet. 669 */ 670 void 671 mi_gdinit(struct globaldata *gd, int cpuid) 672 { 673 TAILQ_INIT(&gd->gd_systimerq); 674 gd->gd_sysid_alloc = cpuid; /* prime low bits for cpu lookup */ 675 gd->gd_cpuid = cpuid; 676 gd->gd_cpumask = (cpumask_t)1 << cpuid; 677 lwkt_gdinit(gd); 678 vm_map_entry_reserve_cpu_init(gd); 679 sleep_gdinit(gd); 680 } 681 682