X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..9bccf70c0258c7cac2dcb80011b2a964d884c552:/bsd/kern/bsd_init.c?ds=sidebyside diff --git a/bsd/kern/bsd_init.c b/bsd/kern/bsd_init.c index e6e41c402..1b81ced7b 100644 --- a/bsd/kern/bsd_init.c +++ b/bsd/kern/bsd_init.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2001 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * @@ -107,7 +107,18 @@ #include #include +#include +#include +#include +#include +#include +#include + +#include +#include + extern shared_region_mapping_t system_shared_region; +extern int app_profile; /* on/off switch for pre-heat cache */ char copyright[] = "Copyright (c) 1982, 1986, 1989, 1991, 1993\n\tThe Regents of the University of California. All rights reserved.\n\n"; @@ -125,18 +136,6 @@ struct pstats pstats0; struct sigacts sigacts0; struct proc *kernproc, *initproc; - -long cp_time[CPUSTATES]; -long dk_seek[DK_NDRIVE]; -long dk_time[DK_NDRIVE]; -long dk_wds[DK_NDRIVE]; -long dk_wpms[DK_NDRIVE]; -long dk_xfer[DK_NDRIVE]; -long dk_bps[DK_NDRIVE]; - -int dk_busy; -int dk_ndrive; - long tk_cancc; long tk_nin; long tk_nout; @@ -159,9 +158,6 @@ int domainnamelen; char rootdevice[16]; /* hfs device names have at least 9 chars */ struct timeval boottime; /* GRODY! This has to go... */ -#if FIXME /* [ */ -struct timeval time; -#endif /* FIXME ] */ #ifdef KMEMSTATS struct kmemstats kmemstats[M_LAST]; @@ -171,15 +167,18 @@ int lbolt; /* awoken once a second */ struct vnode *rootvp; int boothowto = RB_DEBUG; +#define BSD_PAGABLE_MAP_SIZE (4 * 512 * 1024) vm_map_t bsd_pageable_map; vm_map_t mb_map; +semaphore_t execve_semaphore; int cmask = CMASK; int parse_bsd_args(void); extern int bsd_hardclockinit; -extern vm_address_t bsd_init_task; +extern task_t bsd_init_task; extern char init_task_failure_data[]; +extern void time_zone_slock_init(void); funnel_t * kernel_flock; funnel_t * network_flock; @@ -204,7 +203,8 @@ int enable_funnel = 0; /* disables split funnel */ /* * Sets the name for the given task. */ -void proc_name(s, p) +void +proc_name(s, p) char *s; struct proc *p; { @@ -215,7 +215,6 @@ void proc_name(s, p) length + 1); } - /* To allow these values to be patched, they're globals here */ #include struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ }; @@ -223,15 +222,13 @@ struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ }; struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ }; extern thread_t first_thread; +extern thread_act_t cloneproc(struct proc *, int); +extern int (*mountroot) __P((void)); +extern int netboot_mountroot(); /* netboot.c */ +extern int netboot_setup(struct proc * p); -#define SPL_DEBUG 0 -#if SPL_DEBUG -#define dprintf(x) printf x -#else SPL_DEBUG -#define dprintf(x) -#endif /* SPL_DEBUG */ - -extern thread_t cloneproc(struct proc *, int); +/* hook called after root is mounted XXX temporary hack */ +void (*mountroot_post_hook)(void); void bsd_init() @@ -241,13 +238,11 @@ bsd_init() register int i; int s; thread_t th; - extern void bsdinit_task(); void lightning_bolt(void ); kern_return_t ret; boolean_t funnel_state; extern void uthread_zone_init(); - extern int (*mountroot) __P((void)); #if 1 @@ -265,22 +260,20 @@ bsd_init() kernel_flock = funnel_alloc(KERNEL_FUNNEL); if (kernel_flock == (funnel_t *)0 ) { - panic("fail to allocate kernel mutex lock\n"); + panic("bsd_init: Failed to allocate kernel funnel"); } - funnel_state = thread_funnel_set(kernel_flock, TRUE); if (!disable_funnel) { network_flock = funnel_alloc(NETWORK_FUNNEL); if (network_flock == (funnel_t *)0 ) { - panic("fail to allocate network mutex lock\n"); + panic("bsd_init: Failed to allocate network funnel"); } } else { network_flock = kernel_flock; } - printf(copyright); kmeminit(); @@ -302,14 +295,15 @@ bsd_init() p = kernproc; /* kernel_task->proc = kernproc; */ - set_bsdtask_info(kernel_task,(void *)kernproc); + set_bsdtask_info(kernel_task,(void *)p); p->p_pid = 0; /* give kernproc a name */ proc_name("kernel_task", p); if (current_task() != kernel_task) - printf("We are in for problem, current task in not kernel task\n"); + printf("bsd_init: We have a problem, " + "current task is not kernel task\n"); /* * Create process 0. @@ -331,6 +325,7 @@ bsd_init() p->p_nice = NZERO; p->p_pptr = p; lockinit(&p->signal_lock, PVM, "signal", 0, 0); + TAILQ_INIT(&p->p_uthlist); p->sigwait = FALSE; p->sigwait_thread = THREAD_NULL; p->exit_thread = THREAD_NULL; @@ -367,28 +362,32 @@ bsd_init() */ (void)chgproccnt(0, 1); - /* * Allocate a kernel submap for pageable memory - * for temporary copying (table(), execve()). + * for temporary copying (execve()). */ { vm_offset_t min; ret = kmem_suballoc(kernel_map, &min, - (vm_size_t)512*1024, + (vm_size_t)BSD_PAGABLE_MAP_SIZE, TRUE, TRUE, &bsd_pageable_map); - if (ret != KERN_SUCCESS) - panic("Failed to allocare bsd pageable map\n"); + if (ret != KERN_SUCCESS) + panic("bsd_init: Failed to allocate bsd pageable map"); } + /* Initialize the execve() semaphore */ + ret = semaphore_create(kernel_task, &execve_semaphore, + SYNC_POLICY_FIFO, (BSD_PAGABLE_MAP_SIZE / NCARGS)); + if (ret != KERN_SUCCESS) + panic("bsd_init: Failed to create execve semaphore"); + /* - * Initialize the calendar by - * reading the BBC, if not already set. - */ + * Initialize the calendar. + */ IOKitResetTime(); ubc_init(); @@ -402,13 +401,11 @@ bsd_init() /* Initialize syslog */ log_init(); - /* Initialize SysV shm */ - shminit(); + /* POSIX Shm and Sem */ + pshm_cache_init(); + psem_cache_init(); + time_zone_slock_init(); - /* POSIX Shm and Sem */ - pshm_cache_init(); - psem_cache_init(); - /* * Initialize protocols. Block reception of incoming packets * until everything is ready. @@ -420,15 +417,9 @@ bsd_init() domaininit(); splx(s); - /* - * Create kernel idle cpu processes. This must be done - * before a context switch can occur (and hence I/O can - * happen in the binit() call). - */ p->p_fd->fd_cdir = NULL; p->p_fd->fd_rdir = NULL; - #ifdef GPROF /* Initialize kernel profiling. */ kmstartup(); @@ -449,6 +440,9 @@ bsd_init() #if NLOOP > 0 loopattach(); /* XXX */ #endif + + /* Register the built-in dlil ethernet interface family */ + ether_family_init(); vnode_pager_bootstrap(); @@ -463,8 +457,16 @@ bsd_init() */ microtime(&time); + bsd_hardclockinit = -1; /* start ticking */ + if (0 == (err = vfs_mountroot())) break; + if (mountroot == netboot_mountroot) { + printf("cannot mount network root, errno = %d\n", err); + mountroot = NULL; + if (0 == (err = vfs_mountroot())) + break; + } printf("cannot mount root, errno = %d\n", err); boothowto |= RB_ASKNAME; } @@ -473,10 +475,18 @@ bsd_init() /* Get the vnode for '/'. Set fdp->fd_fd.fd_cdir to reference it. */ if (VFS_ROOT(mountlist.cqh_first, &rootvnode)) - panic("cannot find root vnode"); - filedesc0.fd_cdir = rootvnode; + panic("bsd_init: cannot find root vnode"); VREF(rootvnode); + filedesc0.fd_cdir = rootvnode; VOP_UNLOCK(rootvnode, 0, p); + + if (mountroot == netboot_mountroot) { + int err; + /* post mount setup */ + if (err = netboot_setup(p)) { + panic("bsd_init: NetBoot could not find root, %d", err); + } + } /* @@ -487,7 +497,7 @@ bsd_init() p->p_stats->p_start = boottime = time; p->p_rtime.tv_sec = p->p_rtime.tv_usec = 0; -#ifdef DEVFS +#if DEVFS { extern void devfs_kernel_mount(char * str); @@ -502,48 +512,25 @@ bsd_init() bsd_utaskbootstrap(); - (void) thread_funnel_set(kernel_flock, FALSE); + /* invoke post-root-mount hook */ + if (mountroot_post_hook != NULL) + mountroot_post_hook(); + + (void) thread_funnel_set(kernel_flock, funnel_state); } +/* Called with kernel funnel held */ void -bsdinit_task() +bsdinit_task(void) { struct proc *p = current_proc(); struct uthread *ut; kern_return_t kr; thread_act_t th_act; - boolean_t funnel_state; - - funnel_state = thread_funnel_set(kernel_flock, TRUE); - -#if FIXME /* [ */ - - ipc_port_t master_bootstrap_port; - task_t bootstrap_task; - thread_act_t bootstrap_thr_act; - ipc_port_t root_device_port; - master_bootstrap_port = ipc_port_alloc_kernel(); - if (master_bootstrap_port == IP_NULL) - panic("can't allocate master bootstrap port"); - printf("setting bootstrap port \n"); - task_set_special_port(bootstrap_task, - TASK_BOOTSTRAP_PORT, - ipc_port_make_send(master_bootstrap_port)); - - printf("Setting exception port for the init task\n"); - (void) task_set_exception_ports(get_threadtask(th), - EXC_MASK_ALL & - ~(EXC_MASK_SYSCALL | - EXC_MASK_MACH_SYSCALL | EXC_MASK_RPC_ALERT), - ux_exception_port, - EXCEPTION_DEFAULT, 0); - -#endif /* FIXME ] */ proc_name("init", p); ux_handler_init(); - /* port_reference(ux_exception_port);*/ th_act = current_act(); (void) host_set_exception_ports(host_priv_self(), @@ -569,11 +556,11 @@ bsdinit_task() bsd_hardclockinit = 1; /* Start bsd hardclock */ bsd_init_task = get_threadtask(th_act); init_task_failure_data[0] = 0; + shared_region_mapping_ref(system_shared_region); vm_set_shared_region(get_threadtask(th_act), system_shared_region); load_init_program(p); - - (void) thread_funnel_set(kernel_flock, FALSE); - + /* turn on app-profiling i.e. pre-heating */ + app_profile = 1; } void @@ -591,8 +578,9 @@ lightning_bolt() (void) thread_funnel_set(kernel_flock, FALSE); } -bsd_autoconf(){ - extern kern_return_t IOKitBSDInit( void ); +bsd_autoconf() +{ + extern kern_return_t IOKitBSDInit( void ); kminit(); @@ -606,7 +594,7 @@ bsd_autoconf(){ (*pi->ps_func) (pi->ps_count); } - return( IOKitBSDInit()); + return( IOKitBSDInit()); } @@ -616,10 +604,6 @@ setconf() { extern kern_return_t IOFindBSDRoot( char * rootName, dev_t * root, u_int32_t * flags ); - - extern int (*mountroot) __P((void)); - extern int nfs_mountroot(); /* nfs_vfsops.c */ - u_int32_t flags; kern_return_t err; @@ -639,10 +623,9 @@ setconf() flags = 0; } - /* if network device then force nfs root */ if( flags & 1 ) { - printf("mounting nfs root\n"); - mountroot = nfs_mountroot; + /* network device */ + mountroot = netboot_mountroot; } else { /* otherwise have vfs determine root filesystem */ mountroot = NULL; @@ -653,12 +636,18 @@ setconf() bsd_utaskbootstrap() { thread_act_t th_act; + struct uthread *ut; - th_act = (thread_act_t)cloneproc(kernproc, 0); + th_act = cloneproc(kernproc, 0); initproc = pfind(1); + /* Set the launch time for init */ + initproc->p_stats->p_start = time; + + ut = (struct uthread *)get_bsdthread_info(th_act); + ut->uu_sigmask = 0; thread_hold(th_act); - (void) thread_stop_wait(getshuttle_thread(th_act)); - thread_ast_set(th_act,AST_BSD_INIT); + (void)thread_stop(getshuttle_thread(th_act)); + act_set_astbsd(th_act); thread_release(th_act); thread_unstop(getshuttle_thread(th_act)); (void) thread_resume(th_act); @@ -744,13 +733,11 @@ thread_funnel_switch( panic("thread_funnel_switch: can't switch to same funnel"); } - if ((oldfnl != NETWORK_FUNNEL) && (oldfnl != KERNEL_FUNNEL)) - { + if ((oldfnl != NETWORK_FUNNEL) && (oldfnl != KERNEL_FUNNEL)) { panic("thread_funnel_switch: invalid oldfunnel"); } - if ((newfnl != NETWORK_FUNNEL) && (newfnl != KERNEL_FUNNEL)) - { - panic("thread_funnel_switch: invalid oldfunnel"); + if ((newfnl != NETWORK_FUNNEL) && (newfnl != KERNEL_FUNNEL)) { + panic("thread_funnel_switch: invalid newfunnel"); } if((curflock = thread_funnel_get()) == THR_FUNNEL_NULL) { @@ -763,7 +750,7 @@ thread_funnel_switch( panic("thread_funnel_switch: network funnel not held"); if ((oldfnl == KERNEL_FUNNEL) && (curflock != kernel_flock)) - panic("thread_funnel_switch: network funnel not held"); + panic("thread_funnel_switch: kernel funnel not held"); if(oldfnl == NETWORK_FUNNEL) { oldflock = network_flock;