kernel - use new td_ucred in numerous places
[dragonfly.git] / sys / kern / init_main.c
CommitLineData
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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 $
7bd34050 43 * $DragonFly: src/sys/kern/init_main.c,v 1.87 2008/06/07 11:37:23 mneumann Exp $
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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>
0b692e79 65#include <sys/machintr.h>
dadab5e9 66#include <sys/file2.h>
f8c3996b 67#include <sys/thread2.h>
e3161323 68#include <sys/sysref2.h>
8f1f6170 69#include <sys/spinlock2.h>
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70
71#include <machine/cpu.h>
72
73#include <vm/vm.h>
74#include <vm/vm_param.h>
75#include <sys/lock.h>
76#include <vm/pmap.h>
77#include <vm/vm_map.h>
ba39e2e0 78#include <vm/vm_extern.h>
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79#include <sys/user.h>
80#include <sys/copyright.h>
81
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82int vfs_mountroot_devfs(void);
83
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84/* Components of the first process -- never freed. */
85static struct session session0;
86static struct pgrp pgrp0;
b1b4e5a6 87static struct sigacts sigacts0;
0679adc4 88static struct filedesc filedesc0;
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89static struct plimit limit0;
90static struct vmspace vmspace0;
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91struct proc *initproc;
92struct proc proc0;
08f2f1bb 93struct lwp lwp0;
b7c628e4 94struct thread thread0;
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95
96int cmask = CMASK;
97extern struct user *proc0paddr;
98extern int fallback_elf_brand;
99
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100int boothowto = 0; /* initialized so that it can be patched */
101SYSCTL_INT(_debug, OID_AUTO, boothowto, CTLFLAG_RD, &boothowto, 0, "");
102
103/*
104 * This ensures that there is at least one entry so that the sysinit_set
7bd34050 105 * symbol is not undefined. A subsystem ID of SI_SPECIAL_DUMMY is never
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106 * executed.
107 */
ba39e2e0 108SYSINIT(placeholder, SI_SPECIAL_DUMMY, SI_ORDER_ANY, NULL, NULL)
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109
110/*
111 * The sysinit table itself. Items are checked off as the are run.
112 * If we want to register new sysinit types, add them to newsysinit.
113 */
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114SET_DECLARE(sysinit_set, struct sysinit);
115struct sysinit **sysinit, **sysinit_end;
116struct sysinit **newsysinit, **newsysinit_end;
117
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118
119/*
120 * Merge a new sysinit set into the current set, reallocating it if
121 * necessary. This can only be called after malloc is running.
122 */
123void
dc62b251 124sysinit_add(struct sysinit **set, struct sysinit **set_end)
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125{
126 struct sysinit **newset;
127 struct sysinit **sipp;
128 struct sysinit **xipp;
dc62b251 129 int count;
984263bc 130
dc62b251 131 count = set_end - set;
984263bc 132 if (newsysinit)
dc62b251 133 count += newsysinit_end - newsysinit;
984263bc 134 else
dc62b251 135 count += sysinit_end - sysinit;
efda3bd0 136 newset = kmalloc(count * sizeof(*sipp), M_TEMP, M_WAITOK);
984263bc 137 xipp = newset;
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138 if (newsysinit) {
139 for (sipp = newsysinit; sipp < newsysinit_end; sipp++)
984263bc 140 *xipp++ = *sipp;
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141 } else {
142 for (sipp = sysinit; sipp < sysinit_end; sipp++)
984263bc 143 *xipp++ = *sipp;
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144 }
145 for (sipp = set; sipp < set_end; sipp++)
984263bc 146 *xipp++ = *sipp;
984263bc 147 if (newsysinit)
efda3bd0 148 kfree(newsysinit, M_TEMP);
984263bc 149 newsysinit = newset;
dc62b251 150 newsysinit_end = newset + count;
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151}
152
153/*
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154 * Callbacks from machine-dependant startup code (e.g. init386) to set
155 * up low level entities related to cpu #0's globaldata.
156 *
157 * Called from very low level boot code.
158 */
159void
160mi_proc0init(struct globaldata *gd, struct user *proc0paddr)
161{
162 lwkt_init_thread(&thread0, proc0paddr, LWKT_THREAD_STACK, 0, gd);
163 lwkt_set_comm(&thread0, "thread0");
3e291793 164 RB_INIT(&proc0.p_lwp_tree);
8f1f6170 165 spin_init(&proc0.p_spin);
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166 proc0.p_lasttid = 0; /* +1 = next TID */
167 lwp_rb_tree_RB_INSERT(&proc0.p_lwp_tree, &lwp0);
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168 lwp0.lwp_thread = &thread0;
169 lwp0.lwp_proc = &proc0;
6bf59cd2 170 proc0.p_usched = usched_init();
08f2f1bb 171 lwp0.lwp_cpumask = 0xFFFFFFFF;
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172 varsymset_init(&proc0.p_varsymset, NULL);
173 thread0.td_flags |= TDF_RUNNING;
174 thread0.td_proc = &proc0;
08f2f1bb 175 thread0.td_lwp = &lwp0;
6179d4f3 176 thread0.td_switch = cpu_lwkt_switch;
6b7dca13 177 lwkt_schedule_self(curthread);
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178}
179
180/*
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181 * System startup; initialize the world, create process 0, mount root
182 * filesystem, and fork to create init and pagedaemon. Most of the
183 * hard work is done in the lower-level initialization routines including
184 * startup(), which does memory initialization and autoconfiguration.
185 *
186 * This allows simple addition of new kernel subsystems that require
187 * boot time initialization. It also allows substitution of subsystem
188 * (for instance, a scheduler, kernel profiler, or VM system) by object
189 * module. Finally, it allows for optional "kernel threads".
190 */
191void
192mi_startup(void)
193{
8a8d5d85 194 struct sysinit *sip; /* system initialization*/
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195 struct sysinit **sipp; /* system initialization*/
196 struct sysinit **xipp; /* interior loop of sort*/
197 struct sysinit *save; /* bubble*/
984263bc 198
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199 if (sysinit == NULL) {
200 sysinit = SET_BEGIN(sysinit_set);
201 sysinit_end = SET_LIMIT(sysinit_set);
202 }
203
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204restart:
205 /*
206 * Perform a bubble sort of the system initialization objects by
207 * their subsystem (primary key) and order (secondary key).
208 */
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209 for (sipp = sysinit; sipp < sysinit_end; sipp++) {
210 for (xipp = sipp + 1; xipp < sysinit_end; xipp++) {
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211 if ((*sipp)->subsystem < (*xipp)->subsystem ||
212 ((*sipp)->subsystem == (*xipp)->subsystem &&
213 (*sipp)->order <= (*xipp)->order))
214 continue; /* skip*/
215 save = *sipp;
216 *sipp = *xipp;
217 *xipp = save;
218 }
219 }
220
221 /*
222 * Traverse the (now) ordered list of system initialization tasks.
223 * Perform each task, and continue on to the next task.
224 *
225 * The last item on the list is expected to be the scheduler,
226 * which will not return.
227 */
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228 for (sipp = sysinit; sipp < sysinit_end; sipp++) {
229 sip = *sipp;
ba39e2e0 230 if (sip->subsystem == SI_SPECIAL_DUMMY)
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231 continue; /* skip dummy task(s)*/
232
ba39e2e0 233 if (sip->subsystem == SI_SPECIAL_DONE)
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234 continue;
235
236 /* Call function */
8a8d5d85 237 (*(sip->func))(sip->udata);
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238
239 /* Check off the one we're just done */
ba39e2e0 240 sip->subsystem = SI_SPECIAL_DONE;
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241
242 /* Check if we've installed more sysinit items via KLD */
243 if (newsysinit != NULL) {
dc62b251 244 if (sysinit != SET_BEGIN(sysinit_set))
efda3bd0 245 kfree(sysinit, M_TEMP);
984263bc 246 sysinit = newsysinit;
dc62b251 247 sysinit_end = newsysinit_end;
984263bc 248 newsysinit = NULL;
dc62b251 249 newsysinit_end = NULL;
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250 goto restart;
251 }
252 }
253
254 panic("Shouldn't get here!");
255 /* NOTREACHED*/
256}
257
258
259/*
260 ***************************************************************************
261 ****
262 **** The following SYSINIT's belong elsewhere, but have not yet
263 **** been moved.
264 ****
265 ***************************************************************************
266 */
267static void
268print_caddr_t(void *data __unused)
269{
6ea70f76 270 kprintf("%s", (char *)data);
984263bc 271}
ba39e2e0 272SYSINIT(announce, SI_BOOT1_COPYRIGHT, SI_ORDER_FIRST, print_caddr_t, copyright)
984263bc 273
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274/*
275 * Leave the critical section that protected us from spurious interrupts
276 * so device probes work.
277 */
278static void
279leavecrit(void *dummy __unused)
280{
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281 MachIntrABI.finalize();
282 cpu_enable_intr();
283 MachIntrABI.cleanup();
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284 crit_exit();
285 KKASSERT(!IN_CRITICAL_SECT(curthread));
dbcd0c9b 286
f8c3996b 287 if (bootverbose)
6ea70f76 288 kprintf("Leaving critical section, allowing interrupts\n");
f8c3996b 289}
ba39e2e0 290SYSINIT(leavecrit, SI_BOOT2_LEAVE_CRIT, SI_ORDER_ANY, leavecrit, NULL)
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291
292/*
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293 * This is called after the threading system is up and running,
294 * including the softclock, clock interrupts, and SMP.
295 */
296static void
297tsleepworks(void *dummy __unused)
298{
299 tsleep_now_works = 1;
300}
301SYSINIT(tsleepworks, SI_BOOT2_FINISH_SMP, SI_ORDER_SECOND, tsleepworks, NULL)
302
303/*
304 * This is called after devices have configured. Tell the kernel we are
305 * no longer in cold boot.
306 */
307static void
308endofcoldboot(void *dummy __unused)
309{
310 cold = 0;
311}
312SYSINIT(endofcoldboot, SI_SUB_ISWARM, SI_ORDER_ANY, endofcoldboot, NULL)
313
314/*
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315 ***************************************************************************
316 ****
317 **** The two following SYSINT's are proc0 specific glue code. I am not
318 **** convinced that they can not be safely combined, but their order of
319 **** operation has been maintained as the same as the original init_main.c
320 **** for right now.
321 ****
322 **** These probably belong in init_proc.c or kern_proc.c, since they
323 **** deal with proc0 (the fork template process).
324 ****
325 ***************************************************************************
326 */
327/* ARGSUSED*/
328static void
329proc0_init(void *dummy __unused)
330{
0679adc4 331 struct proc *p;
81eea9f4 332 struct lwp *lp;
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333
334 p = &proc0;
08f2f1bb 335 lp = &lwp0;
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336
337 /*
338 * Initialize process and pgrp structures.
339 */
340 procinit();
341
342 /*
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343 * additional VM structures
344 */
345 vm_init2();
346
347 /*
348 * Create process 0 (the swapper).
349 */
350 LIST_INSERT_HEAD(&allproc, p, p_list);
351 p->p_pgrp = &pgrp0;
352 LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
353 LIST_INIT(&pgrp0.pg_members);
354 LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist);
355
356 pgrp0.pg_session = &session0;
357 session0.s_count = 1;
358 session0.s_leader = p;
359
360 p->p_sysent = &aout_sysvec;
361
344ad853 362 p->p_flag = P_SYSTEM;
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363 p->p_stat = SACTIVE;
364 lp->lwp_stat = LSRUN;
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365 p->p_nice = NZERO;
366 p->p_rtprio.type = RTP_PRIO_NORMAL;
367 p->p_rtprio.prio = 0;
08f2f1bb 368 lp->lwp_rtprio = p->p_rtprio;
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369
370 p->p_peers = 0;
371 p->p_leader = p;
372
373 bcopy("swapper", p->p_comm, sizeof ("swapper"));
81eea9f4 374 bcopy("swapper", thread0.td_comm, sizeof ("swapper"));
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375
376 /* Create credentials. */
984263bc 377 p->p_ucred = crget();
41c20dac 378 p->p_ucred->cr_ruidinfo = uifind(0);
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379 p->p_ucred->cr_ngroups = 1; /* group 0 */
380 p->p_ucred->cr_uidinfo = uifind(0);
9910d07b 381 thread0.td_ucred = crhold(p->p_ucred); /* bootstrap fork1() */
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382
383 /* Don't jail it */
41c20dac 384 p->p_ucred->cr_prison = NULL;
984263bc 385
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386 /* Create sigacts. */
387 p->p_sigacts = &sigacts0;
388 p->p_sigacts->ps_refcnt = 1;
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389
390 /* Initialize signal state for process 0. */
c0b8a06d 391 siginit(p);
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392
393 /* Create the file descriptor table. */
228b401d 394 fdinit_bootstrap(p, &filedesc0, cmask);
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395
396 /* Create the limits structures. */
c0b8a06d 397 plimit_init0(&limit0);
984263bc 398 p->p_limit = &limit0;
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399
400 /* Allocate a prototype map so we have something to fork. */
401 pmap_pinit0(vmspace_pmap(&vmspace0));
402 p->p_vmspace = &vmspace0;
287ebb09 403 lp->lwp_vmspace = p->p_vmspace;
e3161323 404 sysref_init(&vmspace0.vm_sysref, &vmspace_sysref_class);
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405 vm_map_init(&vmspace0.vm_map,
406 round_page(VM_MIN_USER_ADDRESS),
407 trunc_page(VM_MAX_USER_ADDRESS),
408 vmspace_pmap(&vmspace0));
e3161323 409 sysref_activate(&vmspace0.vm_sysref);
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410
411 /*
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412 * Charge root for one process.
413 */
41c20dac 414 (void)chgproccnt(p->p_ucred->cr_uidinfo, 1, 0);
ba39e2e0 415 vm_init_limits(p);
984263bc 416}
ba39e2e0 417SYSINIT(p0init, SI_BOOT2_PROC0, SI_ORDER_FIRST, proc0_init, NULL)
984263bc 418
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419static int proc0_post_callback(struct proc *p, void *data __unused);
420
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421/* ARGSUSED*/
422static void
423proc0_post(void *dummy __unused)
424{
425 struct timespec ts;
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426
427 /*
428 * Now we can look at the time, having had a chance to verify the
429 * time from the file system. Pretend that proc0 started now.
430 */
8fa76237 431 allproc_scan(proc0_post_callback, NULL);
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432
433 /*
434 * Give the ``random'' number generator a thump.
435 * XXX: Does read_random() contain enough bits to be used here ?
436 */
437 nanotime(&ts);
cddfb7bb 438 skrandom(ts.tv_sec ^ ts.tv_nsec);
984263bc 439}
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440
441static int
442proc0_post_callback(struct proc *p, void *data __unused)
443{
444 microtime(&p->p_start);
445 return(0);
446}
447
ba39e2e0 448SYSINIT(p0post, SI_SUB_PROC0_POST, SI_ORDER_FIRST, proc0_post, NULL)
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449
450/*
451 ***************************************************************************
452 ****
453 **** The following SYSINIT's and glue code should be moved to the
454 **** respective files on a per subsystem basis.
455 ****
456 ***************************************************************************
457 */
458
459
460/*
461 ***************************************************************************
462 ****
463 **** The following code probably belongs in another file, like
464 **** kern/init_init.c.
465 ****
466 ***************************************************************************
467 */
468
469/*
470 * List of paths to try when searching for "init".
471 */
472static char init_path[MAXPATHLEN] =
473#ifdef INIT_PATH
474 __XSTRING(INIT_PATH);
475#else
22628b14 476 "/sbin/init:/sbin/oinit:/sbin/init.bak";
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477#endif
478SYSCTL_STRING(_kern, OID_AUTO, init_path, CTLFLAG_RD, init_path, 0, "");
479
480/*
481 * Start the initial user process; try exec'ing each pathname in init_path.
482 * The program is invoked with one argument containing the boot flags.
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483 *
484 * The MP lock is held on entry.
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485 */
486static void
91bd9c1e 487start_init(void *dummy, struct trapframe *frame)
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488{
489 vm_offset_t addr;
490 struct execve_args args;
491 int options, error;
492 char *var, *path, *next, *s;
493 char *ucp, **uap, *arg0, *arg1;
494 struct proc *p;
553ea3c8 495 struct lwp *lp;
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496 struct mount *mp;
497 struct vnode *vp;
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498
499 p = curproc;
500
08f2f1bb 501 lp = ONLY_LWP_IN_PROC(p);
553ea3c8 502
984263bc 503 /* Get the vnode for '/'. Set p->p_fd->fd_cdir to reference it. */
861905fb 504 mp = mountlist_boot_getfirst();
21739618 505 if (VFS_ROOT(mp, &vp))
984263bc 506 panic("cannot find root vnode");
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507 if (mp->mnt_ncmountpt.ncp == NULL) {
508 cache_allocroot(&mp->mnt_ncmountpt, mp, vp);
509 cache_unlock(&mp->mnt_ncmountpt); /* leave ref intact */
8c361dda 510 }
21739618 511 p->p_fd->fd_cdir = vp;
597aea93 512 vref(p->p_fd->fd_cdir);
21739618 513 p->p_fd->fd_rdir = vp;
597aea93 514 vref(p->p_fd->fd_rdir);
28623bf9 515 vfs_cache_setroot(vp, cache_hold(&mp->mnt_ncmountpt));
a11aaa81 516 vn_unlock(vp); /* leave ref intact */
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517 cache_copy(&mp->mnt_ncmountpt, &p->p_fd->fd_ncdir);
518 cache_copy(&mp->mnt_ncmountpt, &p->p_fd->fd_nrdir);
984263bc 519
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520 kprintf("Mounting devfs\n");
521 vfs_mountroot_devfs();
522
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523 /*
524 * Need just enough stack to hold the faked-up "execve()" arguments.
525 */
526 addr = trunc_page(USRSTACK - PAGE_SIZE);
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527 error = vm_map_find(&p->p_vmspace->vm_map, NULL, 0, &addr, PAGE_SIZE,
528 FALSE,
529 VM_MAPTYPE_NORMAL,
530 VM_PROT_ALL, VM_PROT_ALL,
531 0);
532 if (error)
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533 panic("init: couldn't allocate argument space");
534 p->p_vmspace->vm_maxsaddr = (caddr_t)addr;
535 p->p_vmspace->vm_ssize = 1;
536
bc01a404 537 if ((var = kgetenv("init_path")) != NULL) {
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538 strncpy(init_path, var, sizeof init_path);
539 init_path[sizeof init_path - 1] = 0;
540 }
bc01a404 541 if ((var = kgetenv("kern.fallback_elf_brand")) != NULL)
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542 fallback_elf_brand = strtol(var, NULL, 0);
543
544 for (path = init_path; *path != '\0'; path = next) {
545 while (*path == ':')
546 path++;
547 if (*path == '\0')
548 break;
549 for (next = path; *next != '\0' && *next != ':'; next++)
550 /* nothing */ ;
551 if (bootverbose)
6ea70f76 552 kprintf("start_init: trying %.*s\n", (int)(next - path),
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553 path);
554
555 /*
556 * Move out the boot flag argument.
557 */
558 options = 0;
559 ucp = (char *)USRSTACK;
560 (void)subyte(--ucp, 0); /* trailing zero */
561 if (boothowto & RB_SINGLE) {
562 (void)subyte(--ucp, 's');
563 options = 1;
564 }
565#ifdef notyet
566 if (boothowto & RB_FASTBOOT) {
567 (void)subyte(--ucp, 'f');
568 options = 1;
569 }
570#endif
571
572#ifdef BOOTCDROM
573 (void)subyte(--ucp, 'C');
574 options = 1;
575#endif
576 if (options == 0)
577 (void)subyte(--ucp, '-');
578 (void)subyte(--ucp, '-'); /* leading hyphen */
579 arg1 = ucp;
580
581 /*
582 * Move out the file name (also arg 0).
583 */
584 (void)subyte(--ucp, 0);
585 for (s = next - 1; s >= path; s--)
586 (void)subyte(--ucp, *s);
587 arg0 = ucp;
588
589 /*
590 * Move out the arg pointers.
591 */
592 uap = (char **)((intptr_t)ucp & ~(sizeof(intptr_t)-1));
593 (void)suword((caddr_t)--uap, (long)0); /* terminator */
594 (void)suword((caddr_t)--uap, (long)(intptr_t)arg1);
595 (void)suword((caddr_t)--uap, (long)(intptr_t)arg0);
596
597 /*
598 * Point at the arguments.
599 */
600 args.fname = arg0;
601 args.argv = uap;
602 args.envv = NULL;
603
604 /*
605 * Now try to exec the program. If can't for any reason
606 * other than it doesn't exist, complain.
607 *
608 * Otherwise, return via fork_trampoline() all the way
609 * to user mode as init!
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610 *
611 * WARNING! We may have been moved to another cpu after
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612 * acquiring the current user process designation. The
613 * MP lock will migrate with us though so we still have to
614 * release it.
984263bc 615 */
753fd850 616 if ((error = sys_execve(&args)) == 0) {
8a8d5d85 617 rel_mplock();
52eedfb5 618 lp->lwp_proc->p_usched->acquire_curproc(lp);
984263bc 619 return;
8a8d5d85 620 }
984263bc 621 if (error != ENOENT)
6ea70f76 622 kprintf("exec %.*s: error %d\n", (int)(next - path),
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623 path, error);
624 }
6ea70f76 625 kprintf("init: not found in path %s\n", init_path);
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626 panic("no init");
627}
628
629/*
630 * Like kthread_create(), but runs in it's own address space.
631 * We do this early to reserve pid 1.
632 *
633 * Note special case - do not make it runnable yet. Other work
634 * in progress will change this more.
635 */
636static void
637create_init(const void *udata __unused)
638{
639 int error;
bb3cd951 640 struct lwp *lp;
984263bc 641
e43a034f 642 crit_enter();
08f2f1bb 643 error = fork1(&lwp0, RFFDG | RFPROC, &initproc);
984263bc 644 if (error)
fc92d4aa 645 panic("cannot fork init: %d", error);
344ad853 646 initproc->p_flag |= P_SYSTEM;
08f2f1bb 647 lp = ONLY_LWP_IN_PROC(initproc);
bb3cd951 648 cpu_set_fork_handler(lp, start_init, NULL);
e43a034f 649 crit_exit();
984263bc 650}
ba39e2e0 651SYSINIT(init, SI_SUB_CREATE_INIT, SI_ORDER_FIRST, create_init, NULL)
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652
653/*
654 * Make it runnable now.
655 */
656static void
657kick_init(const void *udata __unused)
658{
08f2f1bb 659 start_forked_proc(&lwp0, initproc);
984263bc 660}
ba39e2e0 661SYSINIT(kickinit, SI_SUB_KTHREAD_INIT, SI_ORDER_FIRST, kick_init, NULL)
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662
663/*
664 * Machine independant globaldata initialization
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665 *
666 * WARNING! Called from early boot, 'mycpu' may not work yet.
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667 */
668void
d0e06f83 669mi_gdinit(struct globaldata *gd, int cpuid)
8ad65e08 670{
88c4d2f6 671 TAILQ_INIT(&gd->gd_systimerq);
e3161323 672 gd->gd_sysid_alloc = cpuid; /* prime low bits for cpu lookup */
d0e06f83 673 gd->gd_cpuid = cpuid;
fda1ad89 674 gd->gd_cpumask = (cpumask_t)1 << cpuid;
8ad65e08 675 lwkt_gdinit(gd);
41a01a4d 676 vm_map_entry_reserve_cpu_init(gd);
fc17ad60 677 sleep_gdinit(gd);
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678}
679