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[apple/xnu.git] / bsd / kern / bsd_init.c
diff --git a/bsd/kern/bsd_init.c b/bsd/kern/bsd_init.c
index cf4ee656a3d627a42f21d518c8109b343dd08b62..23e115db01ae29a388f9897dcbd1dfdeb9ae401c 100644 (file)
--- a/bsd/kern/bsd_init.c
+++ b/bsd/kern/bsd_init.c
@@ -1,5 +1,5 @@
 /*
 /*
- * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2015 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -24,8 +24,8 @@
  * limitations under the License.
  * 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  * limitations under the License.
  * 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-/*
+ * 
+ *
  * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
  *     The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
  * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
  *     The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
@@ -94,8 +94,9 @@
 #include <sys/time.h>
 #include <sys/systm.h>
 #include <sys/mman.h>
 #include <sys/time.h>
 #include <sys/systm.h>
 #include <sys/mman.h>
+#include <sys/kasl.h>
 
 
-#include <bsm/audit_kernel.h>
+#include <security/audit/audit.h>
 
 #include <sys/malloc.h>
 #include <sys/dkstat.h>
 
 #include <sys/malloc.h>
 #include <sys/dkstat.h>
@@ -105,18 +106,19 @@
 #include <kern/thread.h>
 #include <kern/task.h>
 #include <kern/ast.h>
 #include <kern/thread.h>
 #include <kern/task.h>
 #include <kern/ast.h>
+#include <kern/kalloc.h>
+#include <kern/ux_handler.h>            /* for ux_handler_setup() */
 
 #include <mach/vm_param.h>
 
 #include <vm/vm_map.h>
 #include <vm/vm_kern.h>
 
 
 #include <mach/vm_param.h>
 
 #include <vm/vm_map.h>
 #include <vm/vm_kern.h>
 
-#include <sys/ux_exception.h>  /* for ux_exception_port */
-
 #include <sys/reboot.h>
 #include <sys/reboot.h>
-#include <mach/exception_types.h>
 #include <dev/busvar.h>                        /* for pseudo_inits */
 #include <sys/kdebug.h>
 #include <dev/busvar.h>                        /* for pseudo_inits */
 #include <sys/kdebug.h>
+#include <sys/monotonic.h>
+#include <sys/reason.h>
 
 #include <mach/mach_types.h>
 #include <mach/vm_prot.h>
 
 #include <mach/mach_types.h>
 #include <mach/vm_prot.h>
@@ -125,28 +127,45 @@
 #include <kern/clock.h>
 #include <mach/kern_return.h>
 #include <mach/thread_act.h>           /* for thread_resume() */
 #include <kern/clock.h>
 #include <mach/kern_return.h>
 #include <mach/thread_act.h>           /* for thread_resume() */
-#include <mach/task.h>                 /* for task_set_exception_ports() */
-#include <sys/ux_exception.h>          /* for ux_handler() */
 #include <sys/ubc_internal.h>          /* for ubc_init() */
 #include <sys/mcache.h>                        /* for mcache_init() */
 #include <sys/mbuf.h>                  /* for mbinit() */
 #include <sys/event.h>                 /* for knote_init() */
 #include <sys/ubc_internal.h>          /* for ubc_init() */
 #include <sys/mcache.h>                        /* for mcache_init() */
 #include <sys/mbuf.h>                  /* for mbinit() */
 #include <sys/event.h>                 /* for knote_init() */
+#include <sys/eventhandler.h>          /* for eventhandler_init() */
+#include <sys/kern_memorystatus.h>     /* for memorystatus_init() */
 #include <sys/aio_kern.h>              /* for aio_init() */
 #include <sys/semaphore.h>             /* for psem_cache_init() */
 #include <net/dlil.h>                  /* for dlil_init() */
 #include <net/kpi_protocol.h>          /* for proto_kpi_init() */
 #include <sys/aio_kern.h>              /* for aio_init() */
 #include <sys/semaphore.h>             /* for psem_cache_init() */
 #include <net/dlil.h>                  /* for dlil_init() */
 #include <net/kpi_protocol.h>          /* for proto_kpi_init() */
+#include <net/iptap.h>                 /* for iptap_init() */
 #include <sys/pipe.h>                  /* for pipeinit() */
 #include <sys/socketvar.h>             /* for socketinit() */
 #include <sys/protosw.h>               /* for domaininit() */
 #include <kern/sched_prim.h>           /* for thread_wakeup() */
 #include <net/if_ether.h>              /* for ether_family_init() */
 #include <sys/pipe.h>                  /* for pipeinit() */
 #include <sys/socketvar.h>             /* for socketinit() */
 #include <sys/protosw.h>               /* for domaininit() */
 #include <kern/sched_prim.h>           /* for thread_wakeup() */
 #include <net/if_ether.h>              /* for ether_family_init() */
+#include <net/if_gif.h>                        /* for gif_init() */
 #include <vm/vm_protos.h>              /* for vnode_pager_bootstrap() */
 #include <miscfs/devfs/devfsdefs.h>    /* for devfs_kernel_mount() */
 #include <vm/vm_protos.h>              /* for vnode_pager_bootstrap() */
 #include <miscfs/devfs/devfsdefs.h>    /* for devfs_kernel_mount() */
-#include <mach/host_priv.h>            /* for host_set_exception_ports() */
-#include <kern/host.h>                 /* for host_priv_self() */
 #include <vm/vm_kern.h>                        /* for kmem_suballoc() */
 #include <sys/semaphore.h>             /* for psem_lock_init() */
 #include <sys/msgbuf.h>                        /* for log_setsize() */
 #include <vm/vm_kern.h>                        /* for kmem_suballoc() */
 #include <sys/semaphore.h>             /* for psem_lock_init() */
 #include <sys/msgbuf.h>                        /* for log_setsize() */
+#include <sys/tty.h>                   /* for tty_init() */
+#include <sys/proc_uuid_policy.h>      /* proc_uuid_policy_init() */
+#include <netinet/flow_divert.h>       /* flow_divert_init() */
+#include <net/content_filter.h>                /* for cfil_init() */
+#include <net/necp.h>                  /* for necp_init() */
+#include <net/network_agent.h>         /* for netagent_init() */
+#include <net/packet_mangler.h>                /* for pkt_mnglr_init() */
+#include <net/if_utun.h>               /* for utun_register_control() */
+#include <net/if_ipsec.h>              /* for ipsec_register_control() */
+#include <net/net_str_id.h>            /* for net_str_id_init() */
+#include <net/netsrc.h>                        /* for netsrc_init() */
+#include <net/ntstat.h>                        /* for nstat_init() */
+#include <netinet/tcp_cc.h>                    /* for tcp_cc_init() */
+#include <netinet/mptcp_var.h>         /* for mptcp_control_register() */
+#include <net/nwk_wq.h>                        /* for nwk_wq_init */
+#include <kern/assert.h>               /* for assert() */
+#include <sys/kern_overrides.h>                /* for init_system_override() */
 
 #include <net/init.h>
 
 
 #include <net/init.h>
 
@@ -158,17 +177,33 @@
 
 #include <machine/exec.h>
 
 
 #include <machine/exec.h>
 
+#if NFSCLIENT
+#include <sys/netboot.h>
+#endif
+
 #if CONFIG_IMAGEBOOT
 #include <sys/imageboot.h>
 #endif
 
 #if CONFIG_IMAGEBOOT
 #include <sys/imageboot.h>
 #endif
 
+#if PFLOG
+#include <net/if_pflog.h>
+#endif
+
+
 #include <pexpert/pexpert.h>
 #include <pexpert/pexpert.h>
+#include <machine/pal_routines.h>
+#include <console/video_console.h>
+
+#if CONFIG_XNUPOST
+#include <tests/xnupost.h>
+#endif
 
 void * get_user_regs(thread_t);                /* XXX kludge for <machine/thread.h> */
 void IOKitInitializeTime(void);                /* XXX */
 
 void * get_user_regs(thread_t);                /* XXX kludge for <machine/thread.h> */
 void IOKitInitializeTime(void);                /* XXX */
+void IOSleep(unsigned int);            /* XXX */
 void loopattach(void);                 /* XXX */
 
 void loopattach(void);                 /* XXX */
 
-char    copyright[] =
+const char    copyright[] =
 "Copyright (c) 1982, 1986, 1989, 1991, 1993\n\t"
 "The Regents of the University of California. "
 "All rights reserved.\n\n";
 "Copyright (c) 1982, 1986, 1989, 1991, 1993\n\t"
 "The Regents of the University of California. "
 "All rights reserved.\n\n";
@@ -204,62 +239,97 @@ char      hostname[MAXHOSTNAMELEN];
 int            hostnamelen;
 char   domainname[MAXDOMNAMELEN];
 int            domainnamelen;
 int            hostnamelen;
 char   domainname[MAXDOMNAMELEN];
 int            domainnamelen;
-#if __i386__
-struct exec_archhandler exec_archhandler_ppc = {
-       .path = "/usr/libexec/oah/translate",
-};
-#else /* __i386__ */
-struct exec_archhandler exec_archhandler_ppc;
-#endif /* __i386__ */
 
 
-char rootdevice[16];   /* hfs device names have at least 9 chars */
+char rootdevice[DEVMAXNAMESIZE];
 
 #if  KMEMSTATS
 struct kmemstats kmemstats[M_LAST];
 #endif
 
 
 #if  KMEMSTATS
 struct kmemstats kmemstats[M_LAST];
 #endif
 
-int    lbolt;                          /* awoken once a second */
 struct vnode *rootvp;
 int boothowto = RB_DEBUG;
 struct vnode *rootvp;
 int boothowto = RB_DEBUG;
+int minimalboot = 0;
+#if CONFIG_EMBEDDED
+int darkboot = 0;
+#endif
+
+#if PROC_REF_DEBUG
+__private_extern__ int proc_ref_tracking_disabled = 0; /* disable panics on leaked proc refs across syscall boundary */
+#endif
+
+#if OS_REASON_DEBUG
+__private_extern__ int os_reason_debug_disabled = 0; /* disable asserts for when we fail to allocate OS reasons */
+#endif
 
 
-void lightning_bolt(void *);
 extern kern_return_t IOFindBSDRoot(char *, unsigned int, dev_t *, u_int32_t *);
 extern void IOSecureBSDRoot(const char * rootName);
 extern kern_return_t IOKitBSDInit(void );
 extern void kminit(void);
 extern kern_return_t IOFindBSDRoot(char *, unsigned int, dev_t *, u_int32_t *);
 extern void IOSecureBSDRoot(const char * rootName);
 extern kern_return_t IOKitBSDInit(void );
 extern void kminit(void);
-extern void klogwakeup(void);
 extern void file_lock_init(void);
 extern void kmeminit(void);
 extern void bsd_bufferinit(void);
 extern void file_lock_init(void);
 extern void kmeminit(void);
 extern void bsd_bufferinit(void);
+extern void oslog_setsize(int size);
+extern void throttle_init(void);
+extern void acct_init(void);
 
 
-extern int srv;
+extern int serverperfmode;
 extern int ncl;
 
 extern int ncl;
 
-#define BSD_SIMUL_EXECS       33 /* 32 , allow for rounding */
-#define        BSD_PAGABLE_MAP_SIZE    (BSD_SIMUL_EXECS * (NCARGS + PAGE_SIZE))
 vm_map_t       bsd_pageable_map;
 vm_map_t       mb_map;
 vm_map_t       bsd_pageable_map;
 vm_map_t       mb_map;
-semaphore_t execve_semaphore;
+
+static  int bsd_simul_execs;
+static int bsd_pageable_map_size;
+__private_extern__ int execargs_cache_size = 0;
+__private_extern__ int execargs_free_count = 0;
+__private_extern__ vm_offset_t * execargs_cache = NULL;
+
+void bsd_exec_setup(int);
+
+#if __arm64__
+__private_extern__ int bootarg_no64exec = 0;
+#endif
+#if __x86_64__
+__private_extern__ int bootarg_no32exec = 0;
+#endif
+__private_extern__ int bootarg_vnode_cache_defeat = 0;
+
+#if CONFIG_JETSAM && (DEVELOPMENT || DEBUG)
+__private_extern__ int bootarg_no_vnode_jetsam = 0;
+#endif /* CONFIG_JETSAM && (DEVELOPMENT || DEBUG) */
+
+/*
+ * Prevent kernel-based ASLR from being used, for testing.
+ */
+#if DEVELOPMENT || DEBUG
+__private_extern__ int bootarg_disable_aslr = 0;
+#endif
+
+/*
+ * Allow an alternate dyld to be used for testing.
+ */
+
+#if DEVELOPMENT || DEBUG
+char dyld_alt_path[MAXPATHLEN];
+int use_alt_dyld = 0;
+#endif
 
 int    cmask = CMASK;
 extern int customnbuf;
 
 
 int    cmask = CMASK;
 extern int customnbuf;
 
-void bsd_init(void) __attribute__((section("__TEXT, initcode")));
-__private_extern__ void ubc_init(void )  __attribute__((section("__TEXT, initcode")));
-void vfsinit(void) __attribute__((section("__TEXT, initcode")));
-kern_return_t bsd_autoconf(void) __attribute__((section("__TEXT, initcode")));
-void bsd_utaskbootstrap(void) __attribute__((section("__TEXT, initcode")));
+kern_return_t bsd_autoconf(void);
+void bsd_utaskbootstrap(void);
 
 static void parse_bsd_args(void);
 
 static void parse_bsd_args(void);
-extern task_t bsd_init_task;
-extern char    init_task_failure_data[];
+#if CONFIG_DEV_KMEM
+extern void dev_kmem_init(void);
+#endif
 extern void time_zone_slock_init(void);
 extern void time_zone_slock_init(void);
+extern void select_waitq_init(void);
 static void process_name(const char *, proc_t);
 
 static void setconf(void);
 
 static void process_name(const char *, proc_t);
 
 static void setconf(void);
 
-funnel_t *kernel_flock;
-
 #if SYSV_SHM
 extern void sysv_shm_lock_init(void);
 #endif
 #if SYSV_SHM
 extern void sysv_shm_lock_init(void);
 #endif
@@ -269,19 +339,22 @@ extern void sysv_sem_lock_init(void);
 #if SYSV_MSG
 extern void sysv_msg_lock_init(void);
 #endif
 #if SYSV_MSG
 extern void sysv_msg_lock_init(void);
 #endif
-extern void pthread_init(void);
 
 
-/* kmem access not enabled by default; can be changed with boot-args */
-int setup_kmem = 0;
+extern void ulock_initialize(void);
 
 
-/* size of kernel trace buffer, disabled by default */
-unsigned int new_nkdbufs = 0;
+#if CONFIG_MACF
+#if defined (__i386__) || defined (__x86_64__)
+/* MACF policy_check configuration flags; see policy_check.c for details */
+int policy_check_flags = 0;
 
 
-/* mach leak logging */
-int log_leaks = 0;
-int turn_on_log_leaks = 0;
+extern int check_policy_init(int);
+#endif
+#endif /* CONFIG_MACF */
 
 
-extern void stackshot_lock_init(void);
+/* If we are using CONFIG_DTRACE */
+#if CONFIG_DTRACE
+       extern void dtrace_postinit(void);
+#endif
 
 /*
  * Initialization code.
 
 /*
  * Initialization code.
@@ -301,32 +374,52 @@ extern void stackshot_lock_init(void);
 static void
 process_name(const char *s, proc_t p)
 {
 static void
 process_name(const char *s, proc_t p)
 {
-       size_t length = strlen(s);
-
-       bcopy(s, p->p_comm,
-               length >= sizeof(p->p_comm) ? sizeof(p->p_comm) :
-                       length + 1);
+       strlcpy(p->p_comm, s, sizeof(p->p_comm));
+       strlcpy(p->p_name, s, sizeof(p->p_name));
 }
 
 /* To allow these values to be patched, they're globals here */
 #include <machine/vmparam.h>
 }
 
 /* To allow these values to be patched, they're globals here */
 #include <machine/vmparam.h>
-struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ - PAGE_SIZE };
+struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ - PAGE_MAX_SIZE };
 struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ };
 struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ };
 
 struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ };
 struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ };
 
-extern thread_t        cloneproc(proc_t, int);
+extern thread_t        cloneproc(task_t, coalition_t, proc_t, int, int);
 extern int     (*mountroot)(void);
 extern int     (*mountroot)(void);
-extern int     netboot_mountroot(void);        /* netboot.c */
-extern int     netboot_setup(void);
 
 lck_grp_t * proc_lck_grp;
 
 lck_grp_t * proc_lck_grp;
+lck_grp_t * proc_slock_grp;
+lck_grp_t * proc_fdmlock_grp;
+lck_grp_t * proc_kqhashlock_grp;
+lck_grp_t * proc_knhashlock_grp;
+lck_grp_t * proc_ucred_mlock_grp;
+lck_grp_t * proc_mlock_grp;
 lck_grp_attr_t * proc_lck_grp_attr;
 lck_attr_t * proc_lck_attr;
 lck_mtx_t * proc_list_mlock;
 lck_mtx_t * proc_klist_mlock;
 
 lck_grp_attr_t * proc_lck_grp_attr;
 lck_attr_t * proc_lck_attr;
 lck_mtx_t * proc_list_mlock;
 lck_mtx_t * proc_klist_mlock;
 
+#if CONFIG_XNUPOST
+lck_grp_t * sysctl_debug_test_stackshot_owner_grp;
+lck_mtx_t * sysctl_debug_test_stackshot_owner_init_mtx;
+#endif /* !CONFIG_XNUPOST */
+
+extern lck_mtx_t * execargs_cache_lock;
+
 /* hook called after root is mounted XXX temporary hack */
 void (*mountroot_post_hook)(void);
 /* hook called after root is mounted XXX temporary hack */
 void (*mountroot_post_hook)(void);
+void (*unmountroot_pre_hook)(void);
+
+/*
+ * This function is called before IOKit initialization, so that globals
+ * like the sysctl tree are initialized before kernel extensions
+ * are started (since they may want to register sysctls
+ */
+void
+bsd_early_init(void)
+{
+       sysctl_early_init();
+}
 
 /*
  * This function is called very early on in the Mach startup, from the
 
 /*
  * This function is called very early on in the Mach startup, from the
@@ -342,26 +435,24 @@ void (*mountroot_post_hook)(void);
  * of the uu_context.vc_ucred field so that the uthread structure can be
  * used like any other.
  */
  * of the uu_context.vc_ucred field so that the uthread structure can be
  * used like any other.
  */
+
 void
 bsd_init(void)
 {
 void
 bsd_init(void)
 {
-       proc_t p;
        struct uthread *ut;
        unsigned int i;
        struct uthread *ut;
        unsigned int i;
-#if __i386__
-       int error;
-#endif 
        struct vfs_context context;
        kern_return_t   ret;
        struct ucred temp_cred;
        struct vfs_context context;
        kern_return_t   ret;
        struct ucred temp_cred;
+       struct posix_cred temp_pcred;
+#if NFSCLIENT || CONFIG_IMAGEBOOT
+       boolean_t       netboot = FALSE;
+#endif
 
 #define bsd_init_kprintf(x...) /* kprintf("bsd_init: " x) */
 
 
 #define bsd_init_kprintf(x...) /* kprintf("bsd_init: " x) */
 
-       kernel_flock = funnel_alloc(KERNEL_FUNNEL);
-       if (kernel_flock == (funnel_t *)0 ) {
-               panic("bsd_init: Failed to allocate kernel funnel");
-       }
-        
+       throttle_init();
+
        printf(copyright);
        
        bsd_init_kprintf("calling kmeminit\n");
        printf(copyright);
        
        bsd_init_kprintf("calling kmeminit\n");
@@ -370,6 +461,11 @@ bsd_init(void)
        bsd_init_kprintf("calling parse_bsd_args\n");
        parse_bsd_args();
 
        bsd_init_kprintf("calling parse_bsd_args\n");
        parse_bsd_args();
 
+#if CONFIG_DEV_KMEM
+       bsd_init_kprintf("calling dev_kmem_init\n");
+       dev_kmem_init();
+#endif
+
        /* Initialize kauth subsystem before instancing the first credential */
        bsd_init_kprintf("calling kauth_init\n");
        kauth_init();
        /* Initialize kauth subsystem before instancing the first credential */
        bsd_init_kprintf("calling kauth_init\n");
        kauth_init();
@@ -378,25 +474,38 @@ bsd_init(void)
        bsd_init_kprintf("calling procinit\n");
        procinit();
 
        bsd_init_kprintf("calling procinit\n");
        procinit();
 
-       kernproc = &proc0;
+       /* Initialize the ttys (MUST be before kminit()/bsd_autoconf()!)*/
+       tty_init();
 
 
-       p = kernproc;
+       kernproc = &proc0;      /* implicitly bzero'ed */
 
        /* kernel_task->proc = kernproc; */
 
        /* kernel_task->proc = kernproc; */
-       set_bsdtask_info(kernel_task,(void *)p);
-       p->p_pid = 0;
-       p->p_ppid = 0;
+       set_bsdtask_info(kernel_task,(void *)kernproc);
 
        /* give kernproc a name */
        bsd_init_kprintf("calling process_name\n");
 
        /* give kernproc a name */
        bsd_init_kprintf("calling process_name\n");
-       process_name("kernel_task", p);
+       process_name("kernel_task", kernproc);
 
        /* allocate proc lock group attribute and group */
        bsd_init_kprintf("calling lck_grp_attr_alloc_init\n");
        proc_lck_grp_attr= lck_grp_attr_alloc_init();
 
        /* allocate proc lock group attribute and group */
        bsd_init_kprintf("calling lck_grp_attr_alloc_init\n");
        proc_lck_grp_attr= lck_grp_attr_alloc_init();
-       
+
        proc_lck_grp = lck_grp_alloc_init("proc",  proc_lck_grp_attr);
 
        proc_lck_grp = lck_grp_alloc_init("proc",  proc_lck_grp_attr);
 
+#if CONFIG_FINE_LOCK_GROUPS
+       proc_slock_grp = lck_grp_alloc_init("proc-slock",  proc_lck_grp_attr);
+       proc_ucred_mlock_grp = lck_grp_alloc_init("proc-ucred-mlock",  proc_lck_grp_attr);
+       proc_mlock_grp = lck_grp_alloc_init("proc-mlock",  proc_lck_grp_attr);
+       proc_fdmlock_grp = lck_grp_alloc_init("proc-fdmlock",  proc_lck_grp_attr);
+#endif
+       proc_kqhashlock_grp = lck_grp_alloc_init("proc-kqhashlock",  proc_lck_grp_attr);
+       proc_knhashlock_grp = lck_grp_alloc_init("proc-knhashlock",  proc_lck_grp_attr);
+#if CONFIG_XNUPOST
+       sysctl_debug_test_stackshot_owner_grp = lck_grp_alloc_init("test-stackshot-owner-grp", LCK_GRP_ATTR_NULL);
+       sysctl_debug_test_stackshot_owner_init_mtx = lck_mtx_alloc_init(
+                                                       sysctl_debug_test_stackshot_owner_grp, 
+                                                       LCK_ATTR_NULL);
+#endif /* !CONFIG_XNUPOST */
        /* Allocate proc lock attribute */
        proc_lck_attr = lck_attr_alloc_init();
 #if 0
        /* Allocate proc lock attribute */
        proc_lck_attr = lck_attr_alloc_init();
 #if 0
@@ -405,12 +514,29 @@ bsd_init(void)
 #endif
 #endif
 
 #endif
 #endif
 
+#if CONFIG_FINE_LOCK_GROUPS
+       proc_list_mlock = lck_mtx_alloc_init(proc_mlock_grp, proc_lck_attr);
+       proc_klist_mlock = lck_mtx_alloc_init(proc_mlock_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_mlock, proc_mlock_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_fdmlock, proc_fdmlock_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_ucred_mlock, proc_ucred_mlock_grp, proc_lck_attr);
+       lck_spin_init(&kernproc->p_slock, proc_slock_grp, proc_lck_attr);
+#else
        proc_list_mlock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
        proc_klist_mlock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
        proc_list_mlock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
        proc_klist_mlock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
-       lck_mtx_init(&p->p_mlock, proc_lck_grp, proc_lck_attr);
-       lck_mtx_init(&p->p_fdmlock, proc_lck_grp, proc_lck_attr);
-       lck_spin_init(&p->p_slock, proc_lck_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_mlock, proc_lck_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_fdmlock, proc_lck_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_ucred_mlock, proc_lck_grp, proc_lck_attr);
+       lck_spin_init(&kernproc->p_slock, proc_lck_grp, proc_lck_attr);
+#endif
 
 
+       assert(bsd_simul_execs != 0);
+       execargs_cache_lock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
+       execargs_cache_size = bsd_simul_execs;
+       execargs_free_count = bsd_simul_execs;
+       execargs_cache = (vm_offset_t *)kalloc(bsd_simul_execs * sizeof(vm_offset_t));
+       bzero(execargs_cache, bsd_simul_execs * sizeof(vm_offset_t));
+       
        if (current_task() != kernel_task)
                printf("bsd_init: We have a problem, "
                                "current task is not kernel task\n");
        if (current_task() != kernel_task)
                printf("bsd_init: We have a problem, "
                                "current task is not kernel task\n");
@@ -423,95 +549,135 @@ bsd_init(void)
         * Initialize the MAC Framework
         */
        mac_policy_initbsd();
         * Initialize the MAC Framework
         */
        mac_policy_initbsd();
-       p->p_mac_enforce = 0;
+
+#if defined (__i386__) || defined (__x86_64__)
+       /*
+        * We currently only support this on i386/x86_64, as that is the
+        * only lock code we have instrumented so far.
+        */
+       check_policy_init(policy_check_flags);
+#endif
 #endif /* MAC */
 
 #endif /* MAC */
 
+       ulock_initialize();
+
        /*
         * Create process 0.
         */
        proc_list_lock();
        /*
         * Create process 0.
         */
        proc_list_lock();
-       LIST_INSERT_HEAD(&allproc, p, p_list);
-       p->p_pgrp = &pgrp0;
+       LIST_INSERT_HEAD(&allproc, kernproc, p_list);
+       kernproc->p_pgrp = &pgrp0;
        LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
        LIST_INIT(&pgrp0.pg_members);
        LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
        LIST_INIT(&pgrp0.pg_members);
+#ifdef CONFIG_FINE_LOCK_GROUPS
+       lck_mtx_init(&pgrp0.pg_mlock, proc_mlock_grp, proc_lck_attr);
+#else
        lck_mtx_init(&pgrp0.pg_mlock, proc_lck_grp, proc_lck_attr);
        lck_mtx_init(&pgrp0.pg_mlock, proc_lck_grp, proc_lck_attr);
+#endif
        /* There is no other bsd thread this point and is safe without pgrp lock */
        /* There is no other bsd thread this point and is safe without pgrp lock */
-       LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist);
-       p->p_listflag |= P_LIST_INPGRP;
-       p->p_pgrpid = 0;
+       LIST_INSERT_HEAD(&pgrp0.pg_members, kernproc, p_pglist);
+       kernproc->p_listflag |= P_LIST_INPGRP;
+       kernproc->p_pgrpid = 0;
+       kernproc->p_uniqueid = 0;
 
        pgrp0.pg_session = &session0;
        pgrp0.pg_membercnt = 1;
 
        session0.s_count = 1;
 
        pgrp0.pg_session = &session0;
        pgrp0.pg_membercnt = 1;
 
        session0.s_count = 1;
-       session0.s_leader = p;
+       session0.s_leader = kernproc;
        session0.s_listflags = 0;
        session0.s_listflags = 0;
+#ifdef CONFIG_FINE_LOCK_GROUPS
+       lck_mtx_init(&session0.s_mlock, proc_mlock_grp, proc_lck_attr);
+#else
        lck_mtx_init(&session0.s_mlock, proc_lck_grp, proc_lck_attr);
        lck_mtx_init(&session0.s_mlock, proc_lck_grp, proc_lck_attr);
+#endif
        LIST_INSERT_HEAD(SESSHASH(0), &session0, s_hash);
        proc_list_unlock();
 
        LIST_INSERT_HEAD(SESSHASH(0), &session0, s_hash);
        proc_list_unlock();
 
-#if CONFIG_LCTX
-       p->p_lctx = NULL;
+#if CONFIG_PERSONAS
+       kernproc->p_persona = NULL;
 #endif
 
 #endif
 
-       p->task = kernel_task;
+       kernproc->task = kernel_task;
        
        
-       p->p_stat = SRUN;
-       p->p_flag = P_SYSTEM;
-       p->p_nice = NZERO;
-       p->p_pptr = p;
+       kernproc->p_stat = SRUN;
+       kernproc->p_flag = P_SYSTEM;
+       kernproc->p_lflag = 0;
+       kernproc->p_ladvflag = 0;
 
 
-       TAILQ_INIT(&p->p_uthlist);
-       TAILQ_INSERT_TAIL(&p->p_uthlist, ut, uu_list);
+#if defined(__LP64__)
+       kernproc->p_flag |= P_LP64;
+#endif
+
+#if DEVELOPMENT || DEBUG
+       if (bootarg_disable_aslr)
+               kernproc->p_flag |= P_DISABLE_ASLR;
+#endif
+
+       kernproc->p_nice = NZERO;
+       kernproc->p_pptr = kernproc;
+
+       TAILQ_INIT(&kernproc->p_uthlist);
+       TAILQ_INSERT_TAIL(&kernproc->p_uthlist, ut, uu_list);
        
        
-       p->sigwait = FALSE;
-       p->sigwait_thread = THREAD_NULL;
-       p->exit_thread = THREAD_NULL;
-       p->p_csflags = CS_VALID;
+       kernproc->sigwait = FALSE;
+       kernproc->sigwait_thread = THREAD_NULL;
+       kernproc->exit_thread = THREAD_NULL;
+       kernproc->p_csflags = CS_VALID;
 
        /*
         * Create credential.  This also Initializes the audit information.
 
        /*
         * Create credential.  This also Initializes the audit information.
-        * XXX It is not clear what the initial values should be for audit ID,
-        * XXX session ID, etc..
         */
        bsd_init_kprintf("calling bzero\n");
        bzero(&temp_cred, sizeof(temp_cred));
         */
        bsd_init_kprintf("calling bzero\n");
        bzero(&temp_cred, sizeof(temp_cred));
-       temp_cred.cr_ngroups = 1;
-
+       bzero(&temp_pcred, sizeof(temp_pcred));
+       temp_pcred.cr_ngroups = 1;
+       /* kern_proc, shouldn't call up to DS for group membership */
+       temp_pcred.cr_flags = CRF_NOMEMBERD;
+       temp_cred.cr_audit.as_aia_p = audit_default_aia_p;
+       
        bsd_init_kprintf("calling kauth_cred_create\n");
        bsd_init_kprintf("calling kauth_cred_create\n");
-       p->p_ucred = kauth_cred_create(&temp_cred); 
+       /*
+        * We have to label the temp cred before we create from it to
+        * properly set cr_ngroups, or the create will fail.
+        */
+       posix_cred_label(&temp_cred, &temp_pcred);
+       kernproc->p_ucred = kauth_cred_create(&temp_cred); 
+
+       /* update cred on proc */
+       PROC_UPDATE_CREDS_ONPROC(kernproc);
 
        /* give the (already exisiting) initial thread a reference on it */
        bsd_init_kprintf("calling kauth_cred_ref\n");
 
        /* give the (already exisiting) initial thread a reference on it */
        bsd_init_kprintf("calling kauth_cred_ref\n");
-       kauth_cred_ref(p->p_ucred);
-       ut->uu_context.vc_ucred = p->p_ucred;
+       kauth_cred_ref(kernproc->p_ucred);
+       ut->uu_context.vc_ucred = kernproc->p_ucred;
        ut->uu_context.vc_thread = current_thread();
 
        ut->uu_context.vc_thread = current_thread();
 
-       TAILQ_INIT(&p->aio_activeq);
-       TAILQ_INIT(&p->aio_doneq);
-       p->aio_active_count = 0;
-       p->aio_done_count = 0;
+       TAILQ_INIT(&kernproc->p_aio_activeq);
+       TAILQ_INIT(&kernproc->p_aio_doneq);
+       kernproc->p_aio_total_count = 0;
+       kernproc->p_aio_active_count = 0;
 
        bsd_init_kprintf("calling file_lock_init\n");
        file_lock_init();
 
 #if CONFIG_MACF
 
        bsd_init_kprintf("calling file_lock_init\n");
        file_lock_init();
 
 #if CONFIG_MACF
-       mac_cred_label_associate_kernel(p->p_ucred);
-       mac_task_label_update_cred (p->p_ucred, (struct task *) p->task);
+       mac_cred_label_associate_kernel(kernproc->p_ucred);
 #endif
 
        /* Create the file descriptor table. */
 #endif
 
        /* Create the file descriptor table. */
-       filedesc0.fd_refcnt = 1+1;      /* +1 so shutdown will not _FREE_ZONE */
-       p->p_fd = &filedesc0;
+       kernproc->p_fd = &filedesc0;
        filedesc0.fd_cmask = cmask;
        filedesc0.fd_knlistsize = -1;
        filedesc0.fd_knlist = NULL;
        filedesc0.fd_knhash = NULL;
        filedesc0.fd_knhashmask = 0;
        filedesc0.fd_cmask = cmask;
        filedesc0.fd_knlistsize = -1;
        filedesc0.fd_knlist = NULL;
        filedesc0.fd_knhash = NULL;
        filedesc0.fd_knhashmask = 0;
+       lck_mtx_init(&filedesc0.fd_kqhashlock, proc_kqhashlock_grp, proc_lck_attr);
+       lck_mtx_init(&filedesc0.fd_knhashlock, proc_knhashlock_grp, proc_lck_attr);
 
        /* Create the limits structures. */
 
        /* Create the limits structures. */
-       p->p_limit = &limit0;
-       for (i = 0; i < sizeof(p->p_rlimit)/sizeof(p->p_rlimit[0]); i++)
+       kernproc->p_limit = &limit0;
+       for (i = 0; i < sizeof(kernproc->p_rlimit)/sizeof(kernproc->p_rlimit[0]); i++)
                limit0.pl_rlimit[i].rlim_cur = 
                        limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY;
        limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE;
                limit0.pl_rlimit[i].rlim_cur = 
                        limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY;
        limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE;
@@ -522,11 +688,11 @@ bsd_init(void)
        limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core;
        limit0.pl_refcnt = 1;
 
        limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core;
        limit0.pl_refcnt = 1;
 
-       p->p_stats = &pstats0;
-       p->p_sigacts = &sigacts0;
+       kernproc->p_stats = &pstats0;
+       kernproc->p_sigacts = &sigacts0;
 
        /*
 
        /*
-        * Charge root for two  processes: init and mach_init.
+        * Charge root for one process: launchd.
         */
        bsd_init_kprintf("calling chgproccnt\n");
        (void)chgproccnt(0, 1);
         */
        bsd_init_kprintf("calling chgproccnt\n");
        (void)chgproccnt(0, 1);
@@ -539,16 +705,22 @@ bsd_init(void)
                vm_offset_t     minimum;
 
                bsd_init_kprintf("calling kmem_suballoc\n");
                vm_offset_t     minimum;
 
                bsd_init_kprintf("calling kmem_suballoc\n");
+               assert(bsd_pageable_map_size != 0);
                ret = kmem_suballoc(kernel_map,
                                &minimum,
                ret = kmem_suballoc(kernel_map,
                                &minimum,
-                               (vm_size_t)BSD_PAGABLE_MAP_SIZE,
+                               (vm_size_t)bsd_pageable_map_size,
                                TRUE,
                                VM_FLAGS_ANYWHERE,
                                TRUE,
                                VM_FLAGS_ANYWHERE,
+                               VM_MAP_KERNEL_FLAGS_NONE,
+                               VM_KERN_MEMORY_BSD,
                                &bsd_pageable_map);
                if (ret != KERN_SUCCESS) 
                        panic("bsd_init: Failed to allocate bsd pageable map");
        }
 
                                &bsd_pageable_map);
                if (ret != KERN_SUCCESS) 
                        panic("bsd_init: Failed to allocate bsd pageable map");
        }
 
+       bsd_init_kprintf("calling fpxlog_init\n");
+       fpxlog_init();
+
        /*
         * Initialize buffers and hash links for buffers
         *
        /*
         * Initialize buffers and hash links for buffers
         *
@@ -559,25 +731,12 @@ bsd_init(void)
        bsd_init_kprintf("calling bsd_bufferinit\n");
        bsd_bufferinit();
 
        bsd_init_kprintf("calling bsd_bufferinit\n");
        bsd_bufferinit();
 
-       /* Initialize the execve() semaphore */
-       bsd_init_kprintf("calling semaphore_create\n");
-       ret = semaphore_create(kernel_task, &execve_semaphore,
-                              SYNC_POLICY_FIFO, BSD_SIMUL_EXECS -1);
-       if (ret != KERN_SUCCESS)
-               panic("bsd_init: Failed to create execve semaphore");
-
        /*
         * Initialize the calendar.
         */
        bsd_init_kprintf("calling IOKitInitializeTime\n");
        IOKitInitializeTime();
 
        /*
         * Initialize the calendar.
         */
        bsd_init_kprintf("calling IOKitInitializeTime\n");
        IOKitInitializeTime();
 
-       if (turn_on_log_leaks && !new_nkdbufs)
-               new_nkdbufs = 200000;
-       start_kern_tracing(new_nkdbufs);
-       if (turn_on_log_leaks)
-               log_leaks = 1;
-
        bsd_init_kprintf("calling ubc_init\n");
        ubc_init();
 
        bsd_init_kprintf("calling ubc_init\n");
        ubc_init();
 
@@ -585,6 +744,12 @@ bsd_init(void)
        bsd_init_kprintf("calling vfsinit\n");
        vfsinit();
 
        bsd_init_kprintf("calling vfsinit\n");
        vfsinit();
 
+#if CONFIG_PROC_UUID_POLICY
+       /* Initial proc_uuid_policy subsystem */
+       bsd_init_kprintf("calling proc_uuid_policy_init()\n");
+       proc_uuid_policy_init();
+#endif
+
 #if SOCKETS
        /* Initialize per-CPU cache allocator */
        mcache_init();
 #if SOCKETS
        /* Initialize per-CPU cache allocator */
        mcache_init();
@@ -592,13 +757,14 @@ bsd_init(void)
        /* Initialize mbuf's. */
        bsd_init_kprintf("calling mbinit\n");
        mbinit();
        /* Initialize mbuf's. */
        bsd_init_kprintf("calling mbinit\n");
        mbinit();
+       net_str_id_init(); /* for mbuf tags */
 #endif /* SOCKETS */
 
        /*
         * Initializes security event auditing.
         * XXX: Should/could this occur later?
         */
 #endif /* SOCKETS */
 
        /*
         * Initializes security event auditing.
         * XXX: Should/could this occur later?
         */
-#if AUDIT
+#if CONFIG_AUDIT
        bsd_init_kprintf("calling audit_init\n");
        audit_init();  
 #endif
        bsd_init_kprintf("calling audit_init\n");
        audit_init();  
 #endif
@@ -607,11 +773,9 @@ bsd_init(void)
        bsd_init_kprintf("calling knote_init\n");
        knote_init();
 
        bsd_init_kprintf("calling knote_init\n");
        knote_init();
 
-#if CONFIG_EMBEDDED
-       /* Initialize kernel memory status notifications */
-       bsd_init_kprintf("calling kern_memorystatus_init\n");
-       kern_memorystatus_init();
-#endif
+       /* Initialize event handler */
+       bsd_init_kprintf("calling eventhandler_init\n");
+       eventhandler_init();
 
        /* Initialize for async IO */
        bsd_init_kprintf("calling aio_init\n");
 
        /* Initialize for async IO */
        bsd_init_kprintf("calling aio_init\n");
@@ -649,18 +813,16 @@ bsd_init(void)
        psem_cache_init();
        bsd_init_kprintf("calling time_zone_slock_init\n");
        time_zone_slock_init();
        psem_cache_init();
        bsd_init_kprintf("calling time_zone_slock_init\n");
        time_zone_slock_init();
+       bsd_init_kprintf("calling select_waitq_init\n");
+       select_waitq_init();
 
 
-       /* Stack snapshot facility lock */
-       stackshot_lock_init();
        /*
         * Initialize protocols.  Block reception of incoming packets
         * until everything is ready.
         */
        /*
         * Initialize protocols.  Block reception of incoming packets
         * until everything is ready.
         */
-       bsd_init_kprintf("calling sysctl_register_fixed\n");
-       sysctl_register_fixed(); 
-       bsd_init_kprintf("calling sysctl_mib_init\n");
-       sysctl_mib_init();
 #if NETWORKING
 #if NETWORKING
+       bsd_init_kprintf("calling nwk_wq_init\n");
+       nwk_wq_init();
        bsd_init_kprintf("calling dlil_init\n");
        dlil_init();
        bsd_init_kprintf("calling proto_kpi_init\n");
        bsd_init_kprintf("calling dlil_init\n");
        dlil_init();
        bsd_init_kprintf("calling proto_kpi_init\n");
@@ -671,25 +833,47 @@ bsd_init(void)
        socketinit();
        bsd_init_kprintf("calling domaininit\n");
        domaininit();
        socketinit();
        bsd_init_kprintf("calling domaininit\n");
        domaininit();
+       iptap_init();
+#if FLOW_DIVERT
+       flow_divert_init();
+#endif /* FLOW_DIVERT */
 #endif /* SOCKETS */
 #endif /* SOCKETS */
+       kernproc->p_fd->fd_cdir = NULL;
+       kernproc->p_fd->fd_rdir = NULL;
 
 
-       p->p_fd->fd_cdir = NULL;
-       p->p_fd->fd_rdir = NULL;
+#if CONFIG_FREEZE
+#ifndef CONFIG_MEMORYSTATUS
+    #error "CONFIG_FREEZE defined without matching CONFIG_MEMORYSTATUS"
+#endif
+       /* Initialise background freezing */
+       bsd_init_kprintf("calling memorystatus_freeze_init\n");
+       memorystatus_freeze_init();
+#endif
+
+#if CONFIG_MEMORYSTATUS
+       /* Initialize kernel memory status notifications */
+       bsd_init_kprintf("calling memorystatus_init\n");
+       memorystatus_init();
+#endif /* CONFIG_MEMORYSTATUS */
+
+       bsd_init_kprintf("calling acct_init\n");
+       acct_init();
 
 #ifdef GPROF
        /* Initialize kernel profiling. */
        kmstartup();
 #endif
 
 
 #ifdef GPROF
        /* Initialize kernel profiling. */
        kmstartup();
 #endif
 
-       /* kick off timeout driven events by calling first time */
-       thread_wakeup(&lbolt);
-       timeout(lightning_bolt, 0, hz);
+       bsd_init_kprintf("calling sysctl_mib_init\n");
+       sysctl_mib_init()
 
        bsd_init_kprintf("calling bsd_autoconf\n");
        bsd_autoconf();
 
 
        bsd_init_kprintf("calling bsd_autoconf\n");
        bsd_autoconf();
 
+       bsd_init_kprintf("calling os_reason_init\n");
+       os_reason_init();
+
 #if CONFIG_DTRACE
 #if CONFIG_DTRACE
-       extern void dtrace_postinit(void);
        dtrace_postinit();
 #endif
 
        dtrace_postinit();
 #endif
 
@@ -703,7 +887,16 @@ bsd_init(void)
        bsd_init_kprintf("calling loopattach\n");
        loopattach();                   /* XXX */
 #endif
        bsd_init_kprintf("calling loopattach\n");
        loopattach();                   /* XXX */
 #endif
-        
+#if NGIF
+       /* Initialize gif interface (after lo0) */
+       gif_init();
+#endif
+
+#if PFLOG
+       /* Initialize packet filter log interface */
+       pfloginit();
+#endif /* PFLOG */
+
 #if NETHER > 0
        /* Register the built-in dlil ethernet interface family */
        bsd_init_kprintf("calling ether_family_init\n");
 #if NETHER > 0
        /* Register the built-in dlil ethernet interface family */
        bsd_init_kprintf("calling ether_family_init\n");
@@ -714,78 +907,66 @@ bsd_init(void)
        /* Call any kext code that wants to run just after network init */
        bsd_init_kprintf("calling net_init_run\n");
        net_init_run();
        /* Call any kext code that wants to run just after network init */
        bsd_init_kprintf("calling net_init_run\n");
        net_init_run();
+       
+#if CONTENT_FILTER
+       cfil_init();
+#endif
+
+#if PACKET_MANGLER
+       pkt_mnglr_init();
+#endif 
+
+#if NECP
+       /* Initialize Network Extension Control Policies */
+       necp_init();
+#endif
+
+       netagent_init();
+
+       /* register user tunnel kernel control handler */
+       utun_register_control();
+#if IPSEC
+       ipsec_register_control();
+#endif /* IPSEC */
+       netsrc_init();
+       nstat_init();
+       tcp_cc_init();
+#if MPTCP
+       mptcp_control_register();
+#endif /* MPTCP */
 #endif /* NETWORKING */
 
        bsd_init_kprintf("calling vnode_pager_bootstrap\n");
        vnode_pager_bootstrap();
 #endif /* NETWORKING */
 
        bsd_init_kprintf("calling vnode_pager_bootstrap\n");
        vnode_pager_bootstrap();
-#if 0
-       /* XXX Hack for early debug stop */
-       printf("\nabout to sleep for 10 seconds\n");
-       IOSleep( 10 * 1000 );
-       /* Debugger("hello"); */
-#endif
 
        bsd_init_kprintf("calling inittodr\n");
        inittodr(0);
 
 
        bsd_init_kprintf("calling inittodr\n");
        inittodr(0);
 
-#if CONFIG_EMBEDDED
-       {
-               /* print out early VM statistics */
-               kern_return_t kr1;
-               vm_statistics_data_t stat;
-               mach_msg_type_number_t count;
-
-               count = HOST_VM_INFO_COUNT;
-               kr1 = host_statistics(host_self(),
-                                     HOST_VM_INFO,
-                                     (host_info_t)&stat,
-                                     &count);
-               kprintf("Mach Virtual Memory Statistics (page size of 4096) bytes\n"
-                       "Pages free:\t\t\t%u.\n"
-                       "Pages active:\t\t\t%u.\n"
-                       "Pages inactive:\t\t\t%u.\n"
-                       "Pages wired down:\t\t%u.\n"
-                       "\"Translation faults\":\t\t%u.\n"
-                       "Pages copy-on-write:\t\t%u.\n"
-                       "Pages zero filled:\t\t%u.\n"
-                       "Pages reactivated:\t\t%u.\n"
-                       "Pageins:\t\t\t%u.\n"
-                       "Pageouts:\t\t\t\%u.\n"
-                       "Object cache: %u hits of %u lookups (%d%% hit rate)\n",
-
-                       stat.free_count,
-                       stat.active_count,
-                       stat.inactive_count,
-                       stat.wire_count,
-                       stat.faults,
-                       stat.cow_faults,
-                       stat.zero_fill_count,
-                       stat.reactivations,
-                       stat.pageins,
-                       stat.pageouts,
-                       stat.hits,
-                       stat.lookups,
-                       (stat.hits == 0) ? 100 :
-                                          ((stat.lookups * 100) / stat.hits));
-       }
-#endif /* CONFIG_EMBEDDED */
-       
        /* Mount the root file system. */
        while( TRUE) {
                int err;
 
                bsd_init_kprintf("calling setconf\n");
                setconf();
        /* Mount the root file system. */
        while( TRUE) {
                int err;
 
                bsd_init_kprintf("calling setconf\n");
                setconf();
+#if NFSCLIENT
+               netboot = (mountroot == netboot_mountroot);
+#endif
 
                bsd_init_kprintf("vfs_mountroot\n");
                if (0 == (err = vfs_mountroot()))
                        break;
                rootdevice[0] = '\0';
 #if NFSCLIENT
 
                bsd_init_kprintf("vfs_mountroot\n");
                if (0 == (err = vfs_mountroot()))
                        break;
                rootdevice[0] = '\0';
 #if NFSCLIENT
-               if (mountroot == netboot_mountroot) {
-                       printf("bsd_init: netboot_mountroot failed,"
-                              " errno = %d\n", err);
-                       panic("bsd_init: failed to mount network root: %s", PE_boot_args());
+               if (netboot) {
+                       PE_display_icon( 0, "noroot");  /* XXX a netboot-specific icon would be nicer */
+                       vc_progress_set(FALSE, 0);
+                       for (i=1; 1; i*=2) {
+                               printf("bsd_init: failed to mount network root, error %d, %s\n",
+                                       err, PE_boot_args());
+                               printf("We are hanging here...\n");
+                               IOSleep(i*60*1000);
+                       }
+                       /*NOTREACHED*/
                }
 #endif
                printf("cannot mount root, errno = %d\n", err);
                }
 #endif
                printf("cannot mount root, errno = %d\n", err);
@@ -795,7 +976,7 @@ bsd_init(void)
        IOSecureBSDRoot(rootdevice);
 
        context.vc_thread = current_thread();
        IOSecureBSDRoot(rootdevice);
 
        context.vc_thread = current_thread();
-       context.vc_ucred = p->p_ucred;
+       context.vc_ucred = kernproc->p_ucred;
        mountlist.tqh_first->mnt_flag |= MNT_ROOTFS;
 
        bsd_init_kprintf("calling VFS_ROOT\n");
        mountlist.tqh_first->mnt_flag |= MNT_ROOTFS;
 
        bsd_init_kprintf("calling VFS_ROOT\n");
@@ -808,11 +989,21 @@ bsd_init(void)
        filedesc0.fd_cdir = rootvnode;
 
 #if NFSCLIENT
        filedesc0.fd_cdir = rootvnode;
 
 #if NFSCLIENT
-       if (mountroot == netboot_mountroot) {
+       if (netboot) {
                int err;
                int err;
+
+               netboot = TRUE;
                /* post mount setup */
                if ((err = netboot_setup()) != 0) {
                /* post mount setup */
                if ((err = netboot_setup()) != 0) {
-                       panic("bsd_init: NetBoot could not find root, %d: %s", err, PE_boot_args());
+                       PE_display_icon( 0, "noroot");  /* XXX a netboot-specific icon would be nicer */
+                       vc_progress_set(FALSE, 0);
+                       for (i=1; 1; i*=2) {
+                               printf("bsd_init: NetBoot could not find root, error %d: %s\n",
+                                       err, PE_boot_args());
+                               printf("We are hanging here...\n");
+                               IOSleep(i*60*1000);
+                       }
+                       /*NOTREACHED*/
                }
        }
 #endif
                }
        }
 #endif
@@ -823,25 +1014,17 @@ bsd_init(void)
         * See if a system disk image is present. If so, mount it and
         * switch the root vnode to point to it
         */ 
         * See if a system disk image is present. If so, mount it and
         * switch the root vnode to point to it
         */ 
-  
-       if(imageboot_needed()) {
-               int err;
-
-               /* An image was found */
-               if((err = imageboot_setup())) {
-                       /*
-                        * this is not fatal. Keep trying to root
-                        * off the original media
-                        */
-                       printf("%s: imageboot could not find root, %d\n",
-                               __FUNCTION__, err);
-               }
+       if (netboot == FALSE && imageboot_needed()) {
+               /* 
+                * An image was found.  No turning back: we're booted
+                * with a kernel from the disk image.
+                */
+               imageboot_setup(); 
        }
 #endif /* CONFIG_IMAGEBOOT */
   
        }
 #endif /* CONFIG_IMAGEBOOT */
   
-       microtime(&p->p_stats->p_start);        /* for compat sake */
-       microtime(&p->p_start);
-       p->p_rtime.tv_sec = p->p_rtime.tv_usec = 0;
+       /* set initial time; all other resource data is  already zero'ed */
+       microtime_with_abstime(&kernproc->p_start, &kernproc->p_stats->ps_start);
 
 #if DEVFS
        {
 
 #if DEVFS
        {
@@ -851,20 +1034,15 @@ bsd_init(void)
            devfs_kernel_mount(mounthere);
        }
 #endif /* DEVFS */
            devfs_kernel_mount(mounthere);
        }
 #endif /* DEVFS */
-       
+
        /* Initialize signal state for process 0. */
        bsd_init_kprintf("calling siginit\n");
        /* Initialize signal state for process 0. */
        bsd_init_kprintf("calling siginit\n");
-       siginit(p);
+       siginit(kernproc);
 
        bsd_init_kprintf("calling bsd_utaskbootstrap\n");
        bsd_utaskbootstrap();
 
 
        bsd_init_kprintf("calling bsd_utaskbootstrap\n");
        bsd_utaskbootstrap();
 
-#if __i386__
-       /* this should be done after the root filesystem is mounted */
-       error = set_archhandler(p, CPU_TYPE_POWERPC);
-       if (error) /* XXX make more generic */
-               exec_archhandler_ppc.path[0] = 0;
-#endif 
+       pal_kernel_announce();
 
        bsd_init_kprintf("calling mountroot_post_hook\n");
 
 
        bsd_init_kprintf("calling mountroot_post_hook\n");
 
@@ -873,60 +1051,43 @@ bsd_init(void)
                mountroot_post_hook();
 
 #if 0 /* not yet */
                mountroot_post_hook();
 
 #if 0 /* not yet */
-       IOKitJettisonKLD();
-       consider_zone_gc();
+       consider_zone_gc(FALSE);
 #endif
 #endif
+
+       /* Initialize System Override call */
+       init_system_override();
        
        bsd_init_kprintf("done\n");
 }
 
        
        bsd_init_kprintf("done\n");
 }
 
-/* Called with kernel funnel held */
 void
 bsdinit_task(void)
 {
        proc_t p = current_proc();
 void
 bsdinit_task(void)
 {
        proc_t p = current_proc();
-       struct uthread *ut;
-       thread_t thread;
 
        process_name("init", p);
 
 
        process_name("init", p);
 
-       ux_handler_init();
-
-       thread = current_thread();
-       (void) host_set_exception_ports(host_priv_self(),
-                                       EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
-                                                        EXC_MASK_MACH_SYSCALL |
-                                                        EXC_MASK_RPC_ALERT |
-                                                        EXC_MASK_CRASH),
-                                       (mach_port_t)ux_exception_port,
-                                       EXCEPTION_DEFAULT| MACH_EXCEPTION_CODES,
-                                       0);
-
-       ut = (uthread_t)get_bsdthread_info(thread);
-
-       bsd_init_task = get_threadtask(thread);
-       init_task_failure_data[0] = 0;
+       /* Set up exception-to-signal reflection */
+       ux_handler_setup();
 
 #if CONFIG_MACF
        mac_cred_label_associate_user(p->p_ucred);
 
 #if CONFIG_MACF
        mac_cred_label_associate_user(p->p_ucred);
-       mac_task_label_update_cred (p->p_ucred, (struct task *) p->task);
 #endif
 #endif
-       load_init_program(p);
-       lock_trace = 1;
-}
 
 
-void
-lightning_bolt(__unused void *dummy)
-{                      
-       boolean_t       funnel_state;
+    vm_init_before_launchd();
 
 
-       funnel_state = thread_funnel_set(kernel_flock, TRUE);
+#if CONFIG_XNUPOST
+       int result = bsd_list_tests();
+       result = bsd_do_post();
+       if (result != 0) {
+               panic("bsd_do_post: Tests failed with result = 0x%08x\n", result);
+       }
+#endif
 
 
-       thread_wakeup(&lbolt);
-       timeout(lightning_bolt,0,hz);
-       klogwakeup();
+       bsd_init_kprintf("bsd_do_post - done");
 
 
-       (void) thread_funnel_set(kernel_flock, FALSE);
+       load_init_program(p);
+       lock_trace = 1;
 }
 
 kern_return_t
 }
 
 kern_return_t
@@ -957,11 +1118,6 @@ setconf(void)
        u_int32_t       flags;
        kern_return_t   err;
 
        u_int32_t       flags;
        kern_return_t   err;
 
-       /*
-        * calls into IOKit can generate networking registrations
-        * which needs to be under network funnel. Right thing to do
-        * here is to drop the funnel alltogether and regrab it afterwards
-        */
        err = IOFindBSDRoot(rootdevice, sizeof(rootdevice), &rootdev, &flags);
        if( err) {
                printf("setconf: IOFindBSDRoot returned an error (%d);"
        err = IOFindBSDRoot(rootdevice, sizeof(rootdevice), &rootdev, &flags);
        if( err) {
                printf("setconf: IOFindBSDRoot returned an error (%d);"
@@ -991,22 +1147,29 @@ bsd_utaskbootstrap(void)
        thread_t thread;
        struct uthread *ut;
 
        thread_t thread;
        struct uthread *ut;
 
-       thread = cloneproc(kernproc, 0);
+       /*
+        * Clone the bootstrap process from the kernel process, without
+        * inheriting either task characteristics or memory from the kernel;
+        */
+       thread = cloneproc(TASK_NULL, COALITION_NULL, kernproc, FALSE, TRUE);
+
        /* Hold the reference as it will be dropped during shutdown */
        initproc = proc_find(1);                                
 #if __PROC_INTERNAL_DEBUG
        if (initproc == PROC_NULL)
                panic("bsd_utaskbootstrap: initproc not set\n");
 #endif
        /* Hold the reference as it will be dropped during shutdown */
        initproc = proc_find(1);                                
 #if __PROC_INTERNAL_DEBUG
        if (initproc == PROC_NULL)
                panic("bsd_utaskbootstrap: initproc not set\n");
 #endif
-       /* Set the launch time for init */
-       microtime(&initproc->p_start);
-       microtime(&initproc->p_stats->p_start); /* for compat sake */
-       
+       /*
+        * Since we aren't going back out the normal way to our parent,
+        * we have to drop the transition locks explicitly.
+        */
+       proc_signalend(initproc, 0);
+       proc_transend(initproc, 0);
 
        ut = (struct uthread *)get_bsdthread_info(thread);
        ut->uu_sigmask = 0;
        act_set_astbsd(thread);
 
        ut = (struct uthread *)get_bsdthread_info(thread);
        ut->uu_sigmask = 0;
        act_set_astbsd(thread);
-       (void) thread_resume(thread);
+       task_clear_return_wait(get_threadtask(thread));
 }
 
 static void
 }
 
 static void
@@ -1015,7 +1178,7 @@ parse_bsd_args(void)
        char namep[16];
        int msgbuf;
 
        char namep[16];
        int msgbuf;
 
-       if (PE_parse_boot_argn("-s", namep, sizeof (namep)))
+       if ( PE_parse_boot_argn("-s", namep, sizeof (namep)))
                boothowto |= RB_SINGLE;
 
        if (PE_parse_boot_argn("-b", namep, sizeof (namep)))
                boothowto |= RB_SINGLE;
 
        if (PE_parse_boot_argn("-b", namep, sizeof (namep)))
@@ -1024,25 +1187,137 @@ parse_bsd_args(void)
        if (PE_parse_boot_argn("-x", namep, sizeof (namep))) /* safe boot */
                boothowto |= RB_SAFEBOOT;
 
        if (PE_parse_boot_argn("-x", namep, sizeof (namep))) /* safe boot */
                boothowto |= RB_SAFEBOOT;
 
-       if (PE_parse_boot_argn("-l", namep, sizeof (namep))) /* leaks logging */
-               turn_on_log_leaks = 1;
+       if (PE_parse_boot_argn("-minimalboot", namep, sizeof(namep))) {
+               /*
+                * -minimalboot indicates that we want userspace to be bootstrapped to a
+                * minimal environment.  What constitutes minimal is up to the bootstrap
+                * process.
+                */
+               minimalboot = 1;
+       }
+
+#if __arm64__
+       /* disable 64 bit grading */
+       if (PE_parse_boot_argn("-no64exec", namep, sizeof (namep)))
+               bootarg_no64exec = 1;
+#endif
+#if __x86_64__
+       /* disable 32 bit grading */
+       if (PE_parse_boot_argn("-no32exec", namep, sizeof (namep)))
+               bootarg_no32exec = 1;
+#endif
+
+       /* disable vnode_cache_is_authorized() by setting vnode_cache_defeat */
+       if (PE_parse_boot_argn("-vnode_cache_defeat", namep, sizeof (namep)))
+               bootarg_vnode_cache_defeat = 1;
+
+#if DEVELOPMENT || DEBUG
+       if (PE_parse_boot_argn("-disable_aslr", namep, sizeof (namep)))
+               bootarg_disable_aslr = 1;
+#endif
 
 
-       PE_parse_boot_argn("srv", &srv, sizeof (srv));
        PE_parse_boot_argn("ncl", &ncl, sizeof (ncl));
        PE_parse_boot_argn("ncl", &ncl, sizeof (ncl));
-       if (PE_parse_boot_argn("nbuf", &max_nbuf_headers, sizeof (max_nbuf_headers))) {
+       if (PE_parse_boot_argn("nbuf", &max_nbuf_headers,
+                               sizeof (max_nbuf_headers))) {
                customnbuf = 1;
        }
                customnbuf = 1;
        }
-#if !defined(SECURE_KERNEL)
-       PE_parse_boot_argn("kmem", &setup_kmem, sizeof (setup_kmem));
+
+#if CONFIG_MACF
+#if defined (__i386__) || defined (__x86_64__)
+       PE_parse_boot_argn("policy_check", &policy_check_flags, sizeof (policy_check_flags));
 #endif
 #endif
-       PE_parse_boot_argn("trace", &new_nkdbufs, sizeof (new_nkdbufs));
+#endif /* CONFIG_MACF */
 
        if (PE_parse_boot_argn("msgbuf", &msgbuf, sizeof (msgbuf))) {
                log_setsize(msgbuf);
 
        if (PE_parse_boot_argn("msgbuf", &msgbuf, sizeof (msgbuf))) {
                log_setsize(msgbuf);
+               oslog_setsize(msgbuf);
+       }
+
+       if (PE_parse_boot_argn("-novfscache", namep, sizeof(namep))) {
+               nc_disabled = 1;
        }
        }
+
+#if CONFIG_JETSAM && (DEVELOPMENT || DEBUG)
+       if (PE_parse_boot_argn("-no_vnode_jetsam", namep, sizeof(namep)))
+                bootarg_no_vnode_jetsam = 1;
+#endif /* CONFIG_JETSAM && (DEVELOPMENT || DEBUG) */
+
+
+#if CONFIG_EMBEDDED
+       /*
+        * The darkboot flag is specified by the bootloader and is stored in
+        * boot_args->bootFlags. This flag is available starting revision 2.
+        */
+       boot_args *args = (boot_args *) PE_state.bootArgs;
+       if ((args != NULL) && (args->Revision >= kBootArgsRevision2)) {
+               darkboot = (args->bootFlags & kBootFlagsDarkBoot) ? 1 : 0;
+       } else {
+               darkboot = 0;
+       }
+#endif
+
+#if PROC_REF_DEBUG
+       if (PE_parse_boot_argn("-disable_procref_tracking", namep, sizeof(namep))) {
+               proc_ref_tracking_disabled = 1;
+       }
+#endif
+
+#if OS_REASON_DEBUG
+       if (PE_parse_boot_argn("-disable_osreason_debug", namep, sizeof(namep))) {
+               os_reason_debug_disabled = 1;
+       }
+#endif
+
+       PE_parse_boot_argn("sigrestrict", &sigrestrict_arg, sizeof(sigrestrict_arg));
+
+#if DEVELOPMENT|| DEBUG
+       if (PE_parse_boot_argn("-no_sigsys", namep, sizeof(namep))) {
+               send_sigsys = false;
+       }
+#endif
+
+#if (DEVELOPMENT|| DEBUG)
+       if (PE_parse_boot_argn("alt-dyld", dyld_alt_path, sizeof(dyld_alt_path))) {
+        if (strlen(dyld_alt_path) > 0) {
+            use_alt_dyld = 1;
+        }
+       }
+#endif
+}
+
+void
+bsd_exec_setup(int scale)
+{
+
+       switch (scale) {
+               case 0:
+               case 1:
+                       bsd_simul_execs = BSD_SIMUL_EXECS;
+                       break;
+               case 2:
+               case 3:
+                       bsd_simul_execs = 65;
+                       break;
+               case 4:
+               case 5:
+                       bsd_simul_execs = 129;
+                       break;
+               case 6:
+               case 7:
+                       bsd_simul_execs = 257;
+                       break;
+               default:
+                       bsd_simul_execs = 513;
+                       break;
+                       
+       }
+       bsd_pageable_map_size = (bsd_simul_execs * BSD_PAGEABLE_SIZE_PER_EXEC);
 }
 
 #if !NFSCLIENT
 }
 
 #if !NFSCLIENT
+int 
+netboot_root(void);
+
 int 
 netboot_root(void)
 {
 int 
 netboot_root(void)
 {
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