X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/39236c6e673c41db228275375ab7fdb0f837b292..d26ffc64f583ab2d29df48f13518685602bc8832:/bsd/kern/kern_sysctl.c diff --git a/bsd/kern/kern_sysctl.c b/bsd/kern/kern_sysctl.c index c97123066..f6ed41035 100644 --- a/bsd/kern/kern_sysctl.c +++ b/bsd/kern/kern_sysctl.c @@ -102,27 +102,34 @@ #include #include #include +#include +#include +#include #include #include +#include #include #include #include +#include #include +#include #include #include #include -#include +#include #include +#include #include +#include #include #include #include #include #include -#include #include #include @@ -132,7 +139,9 @@ #include #include +#include #include +#include #if defined(__i386__) || defined(__x86_64__) #include @@ -146,14 +155,16 @@ #include #endif +#if HYPERVISOR +#include +#endif + /* * deliberately setting max requests to really high number * so that runaway settings do not cause MALLOC overflows */ #define AIO_MAX_REQUESTS (128 * CONFIG_AIO_MAX) -extern sysctlfn net_sysctl; -extern sysctlfn cpu_sysctl; extern int aio_max_requests; extern int aio_max_requests_per_process; extern int aio_worker_threads; @@ -161,11 +172,10 @@ extern int lowpri_IO_window_msecs; extern int lowpri_IO_delay_msecs; extern int nx_enabled; extern int speculative_reads_disabled; -extern int ignore_is_ssd; extern unsigned int speculative_prefetch_max; extern unsigned int speculative_prefetch_max_iosize; -extern unsigned int preheat_pages_max; -extern unsigned int preheat_pages_min; +extern unsigned int preheat_max_bytes; +extern unsigned int preheat_min_bytes; extern long numvnodes; extern uuid_string_t bootsessionuuid_string; @@ -179,6 +189,11 @@ extern unsigned int vm_page_free_reserved; extern unsigned int vm_page_speculative_percentage; extern unsigned int vm_page_speculative_q_age_ms; +#if (DEVELOPMENT || DEBUG) +extern uint32_t vm_page_creation_throttled_hard; +extern uint32_t vm_page_creation_throttled_soft; +#endif /* DEVELOPMENT || DEBUG */ + /* * Conditionally allow dtrace to see these functions for debugging purposes. */ @@ -217,8 +232,6 @@ netboot_root(void); int pcsamples_ops(int *name, u_int namelen, user_addr_t where, size_t *sizep, proc_t p); -__private_extern__ kern_return_t -reset_vmobjectcache(unsigned int val1, unsigned int val2); int sysctl_procargs(int *name, u_int namelen, user_addr_t where, size_t *sizep, proc_t cur_proc); @@ -234,9 +247,6 @@ STATIC int sysdoproc_filt_KERN_PROC_PGRP(proc_t p, void * arg); STATIC int sysdoproc_filt_KERN_PROC_TTY(proc_t p, void * arg); STATIC int sysdoproc_filt_KERN_PROC_UID(proc_t p, void * arg); STATIC int sysdoproc_filt_KERN_PROC_RUID(proc_t p, void * arg); -#if CONFIG_LCTX -STATIC int sysdoproc_filt_KERN_PROC_LCID(proc_t p, void * arg); -#endif int sysdoproc_callback(proc_t p, void *arg); @@ -247,17 +257,14 @@ STATIC int sysctl_handle_kern_threadname(struct sysctl_oid *oidp, void *arg1, in STATIC int sysctl_sched_stats(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_sched_stats_enable(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_kdebug_ops SYSCTL_HANDLER_ARGS; -STATIC int sysctl_dotranslate SYSCTL_HANDLER_ARGS; -STATIC int sysctl_doaffinity SYSCTL_HANDLER_ARGS; #if COUNT_SYSCALLS STATIC int sysctl_docountsyscalls SYSCTL_HANDLER_ARGS; #endif /* COUNT_SYSCALLS */ +#if !CONFIG_EMBEDDED STATIC int sysctl_doprocargs SYSCTL_HANDLER_ARGS; +#endif /* !CONFIG_EMBEDDED */ STATIC int sysctl_doprocargs2 SYSCTL_HANDLER_ARGS; STATIC int sysctl_prochandle SYSCTL_HANDLER_ARGS; -#if DEBUG -STATIC int sysctl_dodebug SYSCTL_HANDLER_ARGS; -#endif STATIC int sysctl_aiomax(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_aioprocmax(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_aiothreads(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); @@ -279,8 +286,10 @@ STATIC int sysctl_imgsrcdev(struct sysctl_oid *oidp, void *arg1, int arg2, struc #endif STATIC int sysctl_usrstack(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_usrstack64(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); +#if CONFIG_COREDUMP STATIC int sysctl_coredump(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_suid_coredump(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); +#endif STATIC int sysctl_delayterm(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_rage_vnode(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_kern_check_openevt(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); @@ -288,14 +297,12 @@ STATIC int sysctl_nx(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysct STATIC int sysctl_loadavg(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_vm_toggle_address_reuse(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_swapusage(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); -#if defined(__i386__) || defined(__x86_64__) -STATIC int sysctl_sysctl_exec_affinity(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); -#endif STATIC int fetch_process_cputype( proc_t cur_proc, int *name, u_int namelen, cpu_type_t *cputype); STATIC int sysctl_sysctl_native(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_sysctl_cputype(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_safeboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_singleuser(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); +STATIC int sysctl_minimalboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); STATIC int sysctl_slide(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); @@ -319,249 +326,14 @@ fill_loadavg32(struct loadavg *la, struct user32_loadavg *la32) la32->fscale = (user32_long_t)la->fscale; } -/* - * sysctl_mem_hold - * - * Description: Wire down the callers address map on behalf of sysctl's - * that perform their own copy operations while holding - * locks e.g. in the paging path, which could lead to a - * deadlock, or while holding a spinlock. - * - * Parameters: addr User buffer address - * len User buffer length - * - * Returns: 0 Success - * vslock:ENOMEM Insufficient physical pages to wire - * vslock:EACCES Bad protection mode - * vslock:EINVAL Invalid parameters - * - * Notes: This code is invoked for the first OID element where the - * CTLFLAG_LOCKED is not specified for a given OID node - * element durng OID traversal, and is held for all - * subsequent node traversals, and only released after the - * leaf node handler invocation is complete. - * - * Legacy: For legacy scyctl's provided by third party code which - * expect funnel protection for calls into their code, this - * routine will also take the funnel, which will also only - * be released after the leaf node handler is complete. - * - * This is to support legacy 32 bit BSD KEXTs and legacy 32 - * bit single threaded filesystem KEXTs and similar code - * which relies on funnel protection, e.g. for things like - * FSID based sysctl's. - * - * NEW CODE SHOULD NOT RELY ON THIS BEHAVIOUR! IT WILL BE - * REMOVED IN A FUTURE RELASE OF Mac OS X! - * - * Bugs: This routine does nothing with the new_addr and new_len - * at present, but it should, since read from the user space - * process adddress space which could potentially trigger - * paging may also be occurring deep down. This is due to - * a current limitation of the vslock() routine, which will - * always request a wired mapping be read/write, due to not - * taking an access mode parameter. Note that this could - * also cause problems for output on architectures where - * write access does not require read acccess if the current - * mapping lacks read access. - * - * XXX: To be moved to kern_newsysctl.c to avoid __private_extern__ - */ -int sysctl_mem_lock(user_addr_t old_addr, user_size_t old_len, user_addr_t new_addr, user_size_t new_len); -int -sysctl_mem_lock(__unused user_addr_t old_addr, __unused user_size_t old_len, __unused user_addr_t new_addr, __unused user_size_t new_len) -{ - return 0; -} - -/* - * Locking and stats - */ - -/* sysctl() syscall */ -int -__sysctl(proc_t p, struct __sysctl_args *uap, __unused int32_t *retval) -{ - boolean_t funnel_state = FALSE; /* not held if unknown */ - int error; - size_t savelen = 0, oldlen = 0, newlen; - int name[CTL_MAXNAME]; - int error1; - boolean_t vslock_taken = FALSE; - boolean_t funnel_taken = FALSE; -#if CONFIG_MACF - kauth_cred_t my_cred; -#endif - - /* - * all top-level sysctl names are non-terminal - */ - if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) - return (EINVAL); - error = copyin(uap->name, &name[0], uap->namelen * sizeof(int)); - if (error) - return (error); - - AUDIT_ARG(ctlname, name, uap->namelen); - - if (proc_is64bit(p)) { - /* uap->newlen is a size_t value which grows to 64 bits - * when coming from a 64-bit process. since it's doubtful we'll - * have a sysctl newp buffer greater than 4GB we shrink it to size_t - */ - newlen = CAST_DOWN(size_t, uap->newlen); - } - else { - newlen = uap->newlen; - } - -/* - * XXX TODO: push down rights check for CTL_HW OIDs; most duplicate - * XXX it anyway, which is a performance sink, and requires use - * XXX of SUID root programs (see ). - * - * Note: Opt out of non-leaf node enforcement by removing this - * check for the top level OID value, and then adding - * CTLFLAG_ANYBODY to the leaf nodes in question. Enforce as - * suser for writed in leaf nodes by omitting this flag. - * Enforce with a higher granularity by making the leaf node - * of type SYSCTL_PROC() in order to provide a procedural - * enforcement call site. - * - * NOTE: This function is called prior to any subfunctions being - * called with a fallback to userland_sysctl(); as such, this - * permissions check here will veto the fallback operation. - */ - /* CTL_UNSPEC is used to get oid to AUTO_OID */ - if (uap->new != USER_ADDR_NULL - && ((name[0] == CTL_HW) - || (name[0] == CTL_VM)) - && (error = suser(kauth_cred_get(), &p->p_acflag))) - return (error); - -// XXX need to relocate into each terminal instead of leaving this here... -// XXX macf preemptory check. -#if CONFIG_MACF - my_cred = kauth_cred_proc_ref(p); - error = mac_system_check_sysctl( - my_cred, - (int *) name, - uap->namelen, - uap->old, - uap->oldlenp, - 0, /* XXX 1 for CTL_KERN checks */ - uap->new, - newlen - ); - kauth_cred_unref(&my_cred); - if (error) - return (error); -#endif - - if (uap->oldlenp != USER_ADDR_NULL) { - uint64_t oldlen64 = fuulong(uap->oldlenp); - - oldlen = CAST_DOWN(size_t, oldlen64); - /* - * If more than 4G, clamp to 4G - useracc() below will catch - * with an EFAULT, if it's actually necessary. - */ - if (oldlen64 > 0x00000000ffffffffULL) - oldlen = 0xffffffffUL; - } - - if ((name[0] == CTL_VFS || name[0] == CTL_VM)) { - /* - * Always take the funnel for CTL_VFS and CTL_VM - * - * XXX We should also take it for any OID without the - * XXX CTLFLAG_LOCKED set on it; fix this later! - */ - funnel_state = thread_funnel_set(kernel_flock, TRUE); - funnel_taken = TRUE; - - /* - * XXX Take the vslock() only when we are copying out; this - * XXX erroneously assumes that the copy in will not cause - * XXX a fault if caled from the paging path due to the - * XXX having been recently touched in order to establish - * XXX the input data. This is a bad assumption. - * - * Note: This is overkill, but third parties might - * already call sysctl internally in KEXTs that - * implement mass storage drivers. If you are - * writing a new KEXT, don't do that. - */ - if(uap->old != USER_ADDR_NULL) { - if (!useracc(uap->old, (user_size_t)oldlen, B_WRITE)) { - thread_funnel_set(kernel_flock, funnel_state); - return (EFAULT); - } - - if (oldlen) { - if ((error = vslock(uap->old, (user_size_t)oldlen))) { - thread_funnel_set(kernel_flock, funnel_state); - return(error); - } - savelen = oldlen; - vslock_taken = TRUE; - } - } - } - - /* - * XXX convert vfs_sysctl subelements to newsysctl; this is hard - * XXX because of VFS_NUMMNTOPS being top level. - */ - error = ENOTSUP; - if (name[0] == CTL_VFS) { - error = vfs_sysctl(name + 1, uap->namelen - 1, uap->old, - &oldlen, uap->new, newlen, p); - } - - if (vslock_taken == TRUE) { - error1 = vsunlock(uap->old, (user_size_t)savelen, B_WRITE); - if (!error) - error = error1; - } - - if ( (name[0] != CTL_VFS) && (error == ENOTSUP) ) { - size_t tmp = oldlen; - error = userland_sysctl(p, name, uap->namelen, uap->old, &tmp, - uap->new, newlen, &oldlen); - } - - /* - * If we took the funnel, which we only do for CTL_VFS and CTL_VM on - * 32 bit architectures, then drop it. - * - * XXX the grabbing and dropping need to move into the leaf nodes, - * XXX for sysctl's that are not marked CTLFLAG_LOCKED, but this is - * XXX true for the vslock, as well. We have a start at a routine - * to wrapper this (above), but it's not turned on. The current code - * removed the funnel and the vslock() from all but these two top - * level OIDs. Note that VFS only needs to take the funnel if the FS - * against which it's operating is not thread safe (but since an FS - * can be in the paging path, it still needs to take the vslock()). - */ - if (funnel_taken) - thread_funnel_set(kernel_flock, funnel_state); - - if ((error) && (error != ENOMEM)) - return (error); - - if (uap->oldlenp != USER_ADDR_NULL) - error = suulong(uap->oldlenp, oldlen); - - return (error); -} - +#if CONFIG_COREDUMP /* * Attributes stored in the kernel. */ extern char corefilename[MAXPATHLEN+1]; extern int do_coredump; extern int sugid_coredump; +#endif #if COUNT_SYSCALLS extern int do_count_syscalls; @@ -573,105 +345,6 @@ int securelevel = -1; int securelevel; #endif -STATIC int -sysctl_doaffinity SYSCTL_HANDLER_ARGS -{ - __unused int cmd = oidp->oid_arg2; /* subcommand*/ - int *name = arg1; /* oid element argument vector */ - int namelen = arg2; /* number of oid element arguments */ - user_addr_t oldp = req->oldptr; /* user buffer copy out address */ - size_t *oldlenp = &req->oldlen; /* user buffer copy out size */ - user_addr_t newp = req->newptr; /* user buffer copy in address */ -// size_t newlen = req->newlen; /* user buffer copy in size */ - - int error = ENOTSUP; /* Default to failure */ - - proc_t cur_proc = current_proc(); - - if (namelen < 1) - return (ENOTSUP); - - if (name[0] == 0 && 1 == namelen) { - error = sysctl_rdint(oldp, oldlenp, newp, - (cur_proc->p_flag & P_AFFINITY) ? 1 : 0); - } else if (name[0] == 1 && 2 == namelen) { - if (name[1] == 0) { - OSBitAndAtomic(~((uint32_t)P_AFFINITY), &cur_proc->p_flag); - } else { - OSBitOrAtomic(P_AFFINITY, &cur_proc->p_flag); - } - error = 0; - } - - /* adjust index so we return the right required/consumed amount */ - if (!error) - req->oldidx += req->oldlen; - - return (error); -} -SYSCTL_PROC(_kern, KERN_AFFINITY, affinity, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED, - 0, /* Pointer argument (arg1) */ - 0, /* Integer argument (arg2) */ - sysctl_doaffinity, /* Handler function */ - NULL, /* Data pointer */ - ""); - -STATIC int -sysctl_dotranslate SYSCTL_HANDLER_ARGS -{ - __unused int cmd = oidp->oid_arg2; /* subcommand*/ - int *name = arg1; /* oid element argument vector */ - int namelen = arg2; /* number of oid element arguments */ - user_addr_t oldp = req->oldptr; /* user buffer copy out address */ - size_t *oldlenp = &req->oldlen; /* user buffer copy out size */ - user_addr_t newp = req->newptr; /* user buffer copy in address */ -// size_t newlen = req->newlen; /* user buffer copy in size */ - int error; - - proc_t cur_proc = current_proc(); - proc_t p; - int istranslated = 0; - kauth_cred_t my_cred; - uid_t uid; - - if (namelen != 1) - return (ENOTSUP); - - p = proc_find(name[0]); - if (p == NULL) - return (EINVAL); - - my_cred = kauth_cred_proc_ref(p); - uid = kauth_cred_getuid(my_cred); - kauth_cred_unref(&my_cred); - if ((uid != kauth_cred_getuid(kauth_cred_get())) - && suser(kauth_cred_get(), &cur_proc->p_acflag)) { - proc_rele(p); - return (EPERM); - } - - istranslated = (p->p_flag & P_TRANSLATED); - proc_rele(p); - error = sysctl_rdint(oldp, oldlenp, newp, - (istranslated != 0) ? 1 : 0); - - /* adjust index so we return the right required/consumed amount */ - if (!error) - req->oldidx += req->oldlen; - - return (error); -} -/* - * XXX make CTLFLAG_RW so sysctl_rdint() will EPERM on attempts to write; - * XXX this may not be necessary. - */ -SYSCTL_PROC(_kern, KERN_TRANSLATE, translate, CTLTYPE_NODE|CTLFLAG_RW | CTLFLAG_LOCKED, - 0, /* Pointer argument (arg1) */ - 0, /* Integer argument (arg2) */ - sysctl_dotranslate, /* Handler function */ - NULL, /* Data pointer */ - ""); - STATIC int sysctl_handle_kern_threadname( __unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) @@ -719,11 +392,16 @@ sysctl_handle_kern_threadname( __unused struct sysctl_oid *oidp, __unused void * ut->pth_name = (char*)kalloc( MAXTHREADNAMESIZE ); if(!ut->pth_name) return ENOMEM; + } else { + kernel_debug_string_simple(TRACE_STRING_THREADNAME_PREV, ut->pth_name); } bzero(ut->pth_name, MAXTHREADNAMESIZE); error = copyin(newp, ut->pth_name, newlen); - if(error) + if (error) { return error; + } + + kernel_debug_string_simple(TRACE_STRING_THREADNAME, ut->pth_name); } return 0; @@ -797,12 +475,20 @@ sysctl_sched_stats_enable(__unused struct sysctl_oid *oidp, __unused void *arg1, SYSCTL_PROC(_kern, OID_AUTO, sched_stats_enable, CTLFLAG_LOCKED | CTLFLAG_WR, 0, 0, sysctl_sched_stats_enable, "-", ""); +extern uint32_t sched_debug_flags; +SYSCTL_INT(_debug, OID_AUTO, sched, CTLFLAG_RW | CTLFLAG_LOCKED, &sched_debug_flags, 0, "scheduler debug"); + +#if (DEBUG || DEVELOPMENT) +extern boolean_t doprnt_hide_pointers; +SYSCTL_INT(_debug, OID_AUTO, hide_kernel_pointers, CTLFLAG_RW | CTLFLAG_LOCKED, &doprnt_hide_pointers, 0, "hide kernel pointers from log"); +#endif + extern int get_kernel_symfile(proc_t, char **); #if COUNT_SYSCALLS #define KERN_COUNT_SYSCALLS (KERN_OSTYPE + 1000) -extern int nsysent; +extern unsigned int nsysent; extern int syscalls_log[]; extern const char *syscallnames[]; @@ -867,82 +553,6 @@ SYSCTL_PROC(_kern, KERN_COUNT_SYSCALLS, count_syscalls, CTLTYPE_NODE|CTLFLAG_RD ""); #endif /* COUNT_SYSCALLS */ -#if DEBUG -/* - * Debugging related system variables. - */ -#if DIAGNOSTIC -extern -#endif /* DIAGNOSTIC */ -struct ctldebug debug0, debug1; -struct ctldebug debug2, debug3, debug4; -struct ctldebug debug5, debug6, debug7, debug8, debug9; -struct ctldebug debug10, debug11, debug12, debug13, debug14; -struct ctldebug debug15, debug16, debug17, debug18, debug19; -STATIC struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { - &debug0, &debug1, &debug2, &debug3, &debug4, - &debug5, &debug6, &debug7, &debug8, &debug9, - &debug10, &debug11, &debug12, &debug13, &debug14, - &debug15, &debug16, &debug17, &debug18, &debug19, -}; -STATIC int -sysctl_dodebug SYSCTL_HANDLER_ARGS -{ - int cmd = oidp->oid_arg2; /* subcommand*/ - int *name = arg1; /* oid element argument vector */ - int namelen = arg2; /* number of oid element arguments */ - user_addr_t oldp = req->oldptr; /* user buffer copy out address */ - size_t *oldlenp = &req->oldlen; /* user buffer copy out size */ - user_addr_t newp = req->newptr; /* user buffer copy in address */ - size_t newlen = req->newlen; /* user buffer copy in size */ - int error; - - struct ctldebug *cdp; - - /* all sysctl names at this level are name and field */ - if (namelen != 1) - return (ENOTSUP); /* overloaded */ - if (cmd < 0 || cmd >= CTL_DEBUG_MAXID) - return (ENOTSUP); - cdp = debugvars[cmd]; - if (cdp->debugname == 0) - return (ENOTSUP); - switch (name[0]) { - case CTL_DEBUG_NAME: - error = sysctl_rdstring(oldp, oldlenp, newp, cdp->debugname); - break; - case CTL_DEBUG_VALUE: - error = sysctl_int(oldp, oldlenp, newp, newlen, cdp->debugvar); - break; - default: - error = ENOTSUP; - break; - } - - /* adjust index so we return the right required/consumed amount */ - if (!error) - req->oldidx += req->oldlen; - - return (error); -} -/* - * XXX We mark this RW instead of RD to let sysctl_rdstring() return the - * XXX historical error. - */ -SYSCTL_PROC(_debug, CTL_DEBUG_NAME, name, CTLTYPE_NODE|CTLFLAG_RW | CTLFLAG_LOCKED, - 0, /* Pointer argument (arg1) */ - CTL_DEBUG_NAME, /* Integer argument (arg2) */ - sysctl_dodebug, /* Handler function */ - NULL, /* Data pointer */ - "Debugging"); -SYSCTL_PROC(_debug, CTL_DEBUG_VALUE, value, CTLTYPE_NODE|CTLFLAG_RW | CTLFLAG_LOCKED, - 0, /* Pointer argument (arg1) */ - CTL_DEBUG_VALUE, /* Integer argument (arg2) */ - sysctl_dodebug, /* Handler function */ - NULL, /* Data pointer */ - "Debugging"); -#endif /* DEBUG */ - /* * The following sysctl_* functions should not be used * any more, as they can only cope with callers in @@ -979,26 +589,6 @@ sysctl_int(user_addr_t oldp, size_t *oldlenp, return (error); } -/* - * As above, but read-only. - */ -int -sysctl_rdint(user_addr_t oldp, size_t *oldlenp, user_addr_t newp, int val) -{ - int error = 0; - - if (oldp != USER_ADDR_NULL && oldlenp == NULL) - return (EFAULT); - if (oldp && *oldlenp < sizeof(int)) - return (ENOMEM); - if (newp) - return (EPERM); - *oldlenp = sizeof(int); - if (oldp) - error = copyout((caddr_t)&val, oldp, sizeof(int)); - return (error); -} - /* * Validate parameters and get old / set new parameters * for an quad(64bit)-valued sysctl function. @@ -1023,167 +613,6 @@ sysctl_quad(user_addr_t oldp, size_t *oldlenp, return (error); } -/* - * As above, but read-only. - */ -int -sysctl_rdquad(user_addr_t oldp, size_t *oldlenp, user_addr_t newp, quad_t val) -{ - int error = 0; - - if (oldp != USER_ADDR_NULL && oldlenp == NULL) - return (EFAULT); - if (oldp && *oldlenp < sizeof(quad_t)) - return (ENOMEM); - if (newp) - return (EPERM); - *oldlenp = sizeof(quad_t); - if (oldp) - error = copyout((caddr_t)&val, oldp, sizeof(quad_t)); - return (error); -} - -/* - * Validate parameters and get old / set new parameters - * for a string-valued sysctl function. Unlike sysctl_string, if you - * give it a too small (but larger than 0 bytes) buffer, instead of - * returning ENOMEM, it truncates the returned string to the buffer - * size. This preserves the semantics of some library routines - * implemented via sysctl, which truncate their returned data, rather - * than simply returning an error. The returned string is always NUL - * terminated. - */ -int -sysctl_trstring(user_addr_t oldp, size_t *oldlenp, - user_addr_t newp, size_t newlen, char *str, int maxlen) -{ - int len, copylen, error = 0; - - if (oldp != USER_ADDR_NULL && oldlenp == NULL) - return (EFAULT); - copylen = len = strlen(str) + 1; - if (oldp && (len < 0 || *oldlenp < 1)) - return (ENOMEM); - if (oldp && (*oldlenp < (size_t)len)) - copylen = *oldlenp + 1; - if (newp && (maxlen < 0 || newlen >= (size_t)maxlen)) - return (EINVAL); - *oldlenp = copylen - 1; /* deal with NULL strings correctly */ - if (oldp) { - error = copyout(str, oldp, copylen); - if (!error) { - unsigned char c = 0; - /* NUL terminate */ - oldp += *oldlenp; - error = copyout((void *)&c, oldp, sizeof(char)); - } - } - if (error == 0 && newp) { - error = copyin(newp, str, newlen); - str[newlen] = 0; - AUDIT_ARG(text, (char *)str); - } - return (error); -} - -/* - * Validate parameters and get old / set new parameters - * for a string-valued sysctl function. - */ -int -sysctl_string(user_addr_t oldp, size_t *oldlenp, - user_addr_t newp, size_t newlen, char *str, int maxlen) -{ - int len, error = 0; - - if (oldp != USER_ADDR_NULL && oldlenp == NULL) - return (EFAULT); - len = strlen(str) + 1; - if (oldp && (len < 0 || *oldlenp < (size_t)len)) - return (ENOMEM); - if (newp && (maxlen < 0 || newlen >= (size_t)maxlen)) - return (EINVAL); - *oldlenp = len -1; /* deal with NULL strings correctly */ - if (oldp) { - error = copyout(str, oldp, len); - } - if (error == 0 && newp) { - error = copyin(newp, str, newlen); - str[newlen] = 0; - AUDIT_ARG(text, (char *)str); - } - return (error); -} - -/* - * As above, but read-only. - */ -int -sysctl_rdstring(user_addr_t oldp, size_t *oldlenp, - user_addr_t newp, char *str) -{ - int len, error = 0; - - if (oldp != USER_ADDR_NULL && oldlenp == NULL) - return (EFAULT); - len = strlen(str) + 1; - if (oldp && *oldlenp < (size_t)len) - return (ENOMEM); - if (newp) - return (EPERM); - *oldlenp = len; - if (oldp) - error = copyout(str, oldp, len); - return (error); -} - -/* - * Validate parameters and get old / set new parameters - * for a structure oriented sysctl function. - */ -int -sysctl_struct(user_addr_t oldp, size_t *oldlenp, - user_addr_t newp, size_t newlen, void *sp, int len) -{ - int error = 0; - - if (oldp != USER_ADDR_NULL && oldlenp == NULL) - return (EFAULT); - if (oldp && (len < 0 || *oldlenp < (size_t)len)) - return (ENOMEM); - if (newp && (len < 0 || newlen > (size_t)len)) - return (EINVAL); - if (oldp) { - *oldlenp = len; - error = copyout(sp, oldp, len); - } - if (error == 0 && newp) - error = copyin(newp, sp, len); - return (error); -} - -/* - * Validate parameters and get old parameters - * for a structure oriented sysctl function. - */ -int -sysctl_rdstruct(user_addr_t oldp, size_t *oldlenp, - user_addr_t newp, void *sp, int len) -{ - int error = 0; - - if (oldp != USER_ADDR_NULL && oldlenp == NULL) - return (EFAULT); - if (oldp && (len < 0 || *oldlenp < (size_t)len)) - return (ENOMEM); - if (newp) - return (EPERM); - *oldlenp = len; - if (oldp) - error = copyout(sp, oldp, len); - return (error); -} - STATIC int sysdoproc_filt_KERN_PROC_PID(proc_t p, void * arg) { @@ -1205,12 +634,9 @@ sysdoproc_filt_KERN_PROC_PGRP(proc_t p, void * arg) STATIC int sysdoproc_filt_KERN_PROC_TTY(proc_t p, void * arg) { - boolean_t funnel_state; int retval; struct tty *tp; - - funnel_state = thread_funnel_set(kernel_flock, TRUE); /* This is very racy but list lock is held.. Hmmm. */ if ((p->p_flag & P_CONTROLT) == 0 || (p->p_pgrp == NULL) || (p->p_pgrp->pg_session == NULL) || @@ -1220,8 +646,6 @@ sysdoproc_filt_KERN_PROC_TTY(proc_t p, void * arg) else retval = 1; - thread_funnel_set(kernel_flock, funnel_state); - return(retval); } @@ -1262,18 +686,6 @@ sysdoproc_filt_KERN_PROC_RUID(proc_t p, void * arg) return(1); } -#if CONFIG_LCTX -STATIC int -sysdoproc_filt_KERN_PROC_LCID(proc_t p, void * arg) -{ - if ((p->p_lctx == NULL) || - (p->p_lctx->lc_id != (pid_t)*(int*)arg)) - return(0); - else - return(1); -} -#endif - /* * try over estimating by 5 procs */ @@ -1345,6 +757,7 @@ sysctl_prochandle SYSCTL_HANDLER_ARGS int uidcheck = 0; int ruidcheck = 0; int ttycheck = 0; + int success = 0; if (namelen != 1 && !(namelen == 0 && cmd == KERN_PROC_ALL)) return (EINVAL); @@ -1379,11 +792,6 @@ sysctl_prochandle SYSCTL_HANDLER_ARGS ruidcheck = 1; break; -#if CONFIG_LCTX - case KERN_PROC_LCID: - filterfn = sysdoproc_filt_KERN_PROC_LCID; - break; -#endif case KERN_PROC_ALL: break; @@ -1406,8 +814,16 @@ sysctl_prochandle SYSCTL_HANDLER_ARGS if (namelen) args.uidval = name[0]; - proc_iterate((PROC_ALLPROCLIST | PROC_ZOMBPROCLIST), - sysdoproc_callback, &args, filterfn, name); + success = proc_iterate((PROC_ALLPROCLIST | PROC_ZOMBPROCLIST), + sysdoproc_callback, &args, filterfn, name); + + /* + * rdar://problem/28433391: if we can't iterate over the processes, + * make sure to return an error. + */ + + if (success != 0) + return (ENOMEM); if (error) return (error); @@ -1514,10 +930,6 @@ fill_user32_eproc(proc_t p, struct user32_eproc *__restrict ep) if (sessp != SESSION_NULL && sessp->s_ttyvp) ep->e_flag = EPROC_CTTY; } -#if CONFIG_LCTX - if (p->p_lctx) - ep->e_lcid = p->p_lctx->lc_id; -#endif ep->e_ppid = p->p_ppid; if (p->p_ucred) { my_cred = kauth_cred_proc_ref(p); @@ -1574,10 +986,6 @@ fill_user64_eproc(proc_t p, struct user64_eproc *__restrict ep) if (sessp != SESSION_NULL && sessp->s_ttyvp) ep->e_flag = EPROC_CTTY; } -#if CONFIG_LCTX - if (p->p_lctx) - ep->e_lcid = p->p_lctx->lc_id; -#endif ep->e_ppid = p->p_ppid; if (p->p_ucred) { my_cred = kauth_cred_proc_ref(p); @@ -1737,23 +1145,11 @@ sysctl_kdebug_ops SYSCTL_HANDLER_ARGS // user_addr_t newp = req->newptr; /* user buffer copy in address */ // size_t newlen = req->newlen; /* user buffer copy in size */ - proc_t p = current_proc(); int ret=0; if (namelen == 0) return(ENOTSUP); - - ret = suser(kauth_cred_get(), &p->p_acflag); -#if KPERF - /* Non-root processes may be blessed by kperf to access data - * logged into trace. - */ - if (ret) - ret = kperf_access_check(); -#endif /* KPERF */ - if (ret) - return(ret); - + switch(name[0]) { case KERN_KDEFLAGS: case KERN_KDDFLAGS: @@ -1764,23 +1160,21 @@ sysctl_kdebug_ops SYSCTL_HANDLER_ARGS case KERN_KDSETREG: case KERN_KDGETREG: case KERN_KDREADTR: - case KERN_KDWRITETR: - case KERN_KDWRITEMAP: + case KERN_KDWRITETR: + case KERN_KDWRITEMAP: + case KERN_KDTEST: case KERN_KDPIDTR: case KERN_KDTHRMAP: case KERN_KDPIDEX: - case KERN_KDSETRTCDEC: case KERN_KDSETBUF: - case KERN_KDGETENTROPY: - case KERN_KDENABLE_BG_TRACE: - case KERN_KDDISABLE_BG_TRACE: case KERN_KDREADCURTHRMAP: case KERN_KDSET_TYPEFILTER: - case KERN_KDBUFWAIT: + case KERN_KDBUFWAIT: case KERN_KDCPUMAP: - - ret = kdbg_control(name, namelen, oldp, oldlenp); - break; + case KERN_KDWRITEMAP_V3: + case KERN_KDWRITETR_V3: + ret = kdbg_control(name, namelen, oldp, oldlenp); + break; default: ret= ENOTSUP; break; @@ -1800,6 +1194,7 @@ SYSCTL_PROC(_kern, KERN_KDEBUG, kdebug, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED ""); +#if !CONFIG_EMBEDDED /* * Return the top *sizep bytes of the user stack, or the entire area of the * user stack down through the saved exec_path, whichever is smaller. @@ -1830,6 +1225,7 @@ SYSCTL_PROC(_kern, KERN_PROCARGS, procargs, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LO sysctl_doprocargs, /* Handler function */ NULL, /* Data pointer */ ""); +#endif /* !CONFIG_EMBEDDED */ STATIC int sysctl_doprocargs2 SYSCTL_HANDLER_ARGS @@ -1878,6 +1274,7 @@ sysctl_procargsx(int *name, u_int namelen, user_addr_t where, int pid; kauth_cred_t my_cred; uid_t uid; + int argc = -1; if ( namelen < 1 ) return(EINVAL); @@ -1924,24 +1321,23 @@ sysctl_procargsx(int *name, u_int namelen, user_addr_t where, proc_rele(p); return(EFAULT); } - - size = p->p_argslen; + + size = p->p_argslen; proc_rele(p); - if (argc_yes) { - size += sizeof(int); - } - else { + if (argc_yes) { + size += sizeof(int); + } else { /* * old PROCARGS will return the executable's path and plus some * extra space for work alignment and data tags */ - size += PATH_MAX + (6 * sizeof(int)); - } + size += PATH_MAX + (6 * sizeof(int)); + } size += (size & (sizeof(int) - 1)) ? (sizeof(int) - (size & (sizeof(int) - 1))) : 0; *sizep = size; return (0); } - + my_cred = kauth_cred_proc_ref(p); uid = kauth_cred_getuid(my_cred); kauth_cred_unref(&my_cred); @@ -1957,7 +1353,6 @@ sysctl_procargsx(int *name, u_int namelen, user_addr_t where, arg_addr = p->user_stack - arg_size; - /* * Before we can block (any VM code), make another * reference to the map to keep it alive. We do @@ -1968,7 +1363,10 @@ sysctl_procargsx(int *name, u_int namelen, user_addr_t where, proc_rele(p); return(EINVAL); } - + + /* save off argc before releasing the proc */ + argc = p->p_argc; + argslen = p->p_argslen; /* * Once we have a task reference we can convert that into a @@ -1986,7 +1384,7 @@ sysctl_procargsx(int *name, u_int namelen, user_addr_t where, return(EINVAL); - ret = kmem_alloc(kernel_map, ©_start, round_page(arg_size)); + ret = kmem_alloc(kernel_map, ©_start, round_page(arg_size), VM_KERN_MEMORY_BSD); if (ret != KERN_SUCCESS) { vm_map_deallocate(proc_map); return(ENOMEM); @@ -2013,6 +1411,7 @@ sysctl_procargsx(int *name, u_int namelen, user_addr_t where, tmp, FALSE) != KERN_SUCCESS) { kmem_free(kernel_map, copy_start, round_page(arg_size)); + vm_map_copy_discard(tmp); return (EIO); } @@ -2024,9 +1423,23 @@ sysctl_procargsx(int *name, u_int namelen, user_addr_t where, size = arg_size; } + /* + * When these sysctls were introduced, the first string in the strings + * section was just the bare path of the executable. However, for security + * reasons we now prefix this string with executable_path= so it can be + * parsed getenv style. To avoid binary compatability issues with exising + * callers of this sysctl, we strip it off here if present. + * (rdar://problem/13746466) + */ +#define EXECUTABLE_KEY "executable_path=" + if (strncmp(EXECUTABLE_KEY, data, strlen(EXECUTABLE_KEY)) == 0){ + data += strlen(EXECUTABLE_KEY); + size -= strlen(EXECUTABLE_KEY); + } + if (argc_yes) { /* Put processes argc as the first word in the copyout buffer */ - suword(where, p->p_argc); + suword(where, argc); error = copyout(data, (where + sizeof(int)), size); size += sizeof(int); } else { @@ -2209,8 +1622,13 @@ SYSCTL_STRING(_kern, KERN_VERSION, version, SYSCTL_STRING(_kern, OID_AUTO, uuid, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &kernel_uuid_string[0], 0, ""); - #if DEBUG +#ifndef DKPR +#define DKPR 1 +#endif +#endif + +#if DKPR int debug_kprint_syscall = 0; char debug_kprint_syscall_process[MAXCOMLEN+1]; @@ -2273,15 +1691,65 @@ SYSCTL_PROC(_kern, KERN_OSVERSION, osversion, osversion, 256 /* OSVERSIZE*/, sysctl_osversion, "A", ""); +static uint64_t osproductversion_string[48]; + +STATIC int +sysctl_osproductversion(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req) +{ + if (req->newptr != 0) { + /* + * Can only ever be set by launchd, and only once at boot. + */ + if (req->p->p_pid != 1 || osproductversion_string[0] != '\0') { + return EPERM; + } + } + + return sysctl_handle_string(oidp, arg1, arg2, req); +} + +SYSCTL_PROC(_kern, OID_AUTO, osproductversion, + CTLFLAG_RW | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED, + osproductversion_string, sizeof(osproductversion_string), + sysctl_osproductversion, "A", "The ProductVersion from SystemVersion.plist"); + +static uint64_t osvariant_status = 0; + +STATIC int +sysctl_osvariant_status(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req) +{ + if (req->newptr != 0) { + /* + * Can only ever be set by launchd, and only once at boot. + */ + if (req->p->p_pid != 1 || osvariant_status != 0) { + return EPERM; + } + } + + return sysctl_handle_quad(oidp, arg1, arg2, req); +} + +SYSCTL_PROC(_kern, OID_AUTO, osvariant_status, + CTLFLAG_RW | CTLTYPE_QUAD | CTLFLAG_LOCKED | CTLFLAG_MASKED, + &osvariant_status, sizeof(osvariant_status), + sysctl_osvariant_status, "Q", "Opaque flags used to cache OS variant information"); + STATIC int sysctl_sysctl_bootargs (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) { int error; - char buf[256]; + /* BOOT_LINE_LENGTH */ +#if CONFIG_EMBEDDED + size_t boot_args_len = 256; +#else + size_t boot_args_len = 1024; +#endif + char buf[boot_args_len]; - strlcpy(buf, PE_boot_args(), 256); - error = sysctl_io_string(req, buf, 256, 0, NULL); + strlcpy(buf, PE_boot_args(), boot_args_len); + error = sysctl_io_string(req, buf, boot_args_len, 0, NULL); return(error); } @@ -2337,7 +1805,6 @@ sysctl_maxvnodes (__unused struct sysctl_oid *oidp, __unused void *arg1, __unuse int error = sysctl_io_number(req, desiredvnodes, sizeof(int), &desiredvnodes, NULL); if (oldval != desiredvnodes) { - reset_vmobjectcache(oldval, desiredvnodes); resize_namecache(desiredvnodes); } @@ -2368,6 +1835,81 @@ SYSCTL_PROC(_kern, KERN_AIOTHREADS, aiothreads, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_aiothreads, "I", ""); +#if (DEVELOPMENT || DEBUG) +extern int sched_smt_balance; +SYSCTL_INT(_kern, OID_AUTO, sched_smt_balance, + CTLFLAG_KERN| CTLFLAG_RW| CTLFLAG_LOCKED, + &sched_smt_balance, 0, ""); +extern int sched_allow_rt_smt; +SYSCTL_INT(_kern, OID_AUTO, sched_allow_rt_smt, + CTLFLAG_KERN| CTLFLAG_RW| CTLFLAG_LOCKED, + &sched_allow_rt_smt, 0, ""); +#if __arm__ || __arm64__ +extern uint32_t perfcontrol_requested_recommended_cores; +SYSCTL_UINT(_kern, OID_AUTO, sched_recommended_cores, + CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED, + &perfcontrol_requested_recommended_cores, 0, ""); + +/* Scheduler perfcontrol callouts sysctls */ +SYSCTL_DECL(_kern_perfcontrol_callout); +SYSCTL_NODE(_kern, OID_AUTO, perfcontrol_callout, CTLFLAG_RW | CTLFLAG_LOCKED, 0, + "scheduler perfcontrol callouts"); + +extern int perfcontrol_callout_stats_enabled; +SYSCTL_INT(_kern_perfcontrol_callout, OID_AUTO, stats_enabled, + CTLFLAG_KERN| CTLFLAG_RW| CTLFLAG_LOCKED, + &perfcontrol_callout_stats_enabled, 0, ""); + +extern uint64_t perfcontrol_callout_stat_avg(perfcontrol_callout_type_t type, + perfcontrol_callout_stat_t stat); + +/* On-Core Callout */ +STATIC int +sysctl_perfcontrol_callout_stat +(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req) +{ + perfcontrol_callout_stat_t stat = (perfcontrol_callout_stat_t)arg1; + perfcontrol_callout_type_t type = (perfcontrol_callout_type_t)arg2; + return sysctl_io_number(req, (int)perfcontrol_callout_stat_avg(type, stat), + sizeof(int), NULL, NULL); +} + +SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, oncore_instr, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, + (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_ON_CORE, + sysctl_perfcontrol_callout_stat, "I", ""); +SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, oncore_cycles, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, + (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_ON_CORE, + sysctl_perfcontrol_callout_stat, "I", ""); +SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, offcore_instr, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, + (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_OFF_CORE, + sysctl_perfcontrol_callout_stat, "I", ""); +SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, offcore_cycles, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, + (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_OFF_CORE, + sysctl_perfcontrol_callout_stat, "I", ""); +SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, context_instr, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, + (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_CONTEXT, + sysctl_perfcontrol_callout_stat, "I", ""); +SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, context_cycles, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, + (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_CONTEXT, + sysctl_perfcontrol_callout_stat, "I", ""); +SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, update_instr, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, + (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_STATE_UPDATE, + sysctl_perfcontrol_callout_stat, "I", ""); +SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, update_cycles, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, + (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_STATE_UPDATE, + sysctl_perfcontrol_callout_stat, "I", ""); + +#endif /* __arm__ || __arm64__ */ +#endif /* (DEVELOPMENT || DEBUG) */ + STATIC int sysctl_securelvl (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) @@ -2445,17 +1987,13 @@ SYSCTL_INT(_kern, KERN_SPECULATIVE_READS, speculative_reads_disabled, CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED, &speculative_reads_disabled, 0, ""); -SYSCTL_INT(_kern, OID_AUTO, ignore_is_ssd, +SYSCTL_UINT(_kern, OID_AUTO, preheat_max_bytes, CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED, - &ignore_is_ssd, 0, ""); + &preheat_max_bytes, 0, ""); -SYSCTL_UINT(_kern, OID_AUTO, preheat_pages_max, +SYSCTL_UINT(_kern, OID_AUTO, preheat_min_bytes, CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED, - &preheat_pages_max, 0, ""); - -SYSCTL_UINT(_kern, OID_AUTO, preheat_pages_min, - CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED, - &preheat_pages_min, 0, ""); + &preheat_min_bytes, 0, ""); SYSCTL_UINT(_kern, OID_AUTO, speculative_prefetch_max, CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED, @@ -2501,24 +2039,25 @@ STATIC int sysctl_boottime (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) { - time_t tv_sec = boottime_sec(); + struct timeval tv; + boottime_timeval(&tv); struct proc *p = req->p; if (proc_is64bit(p)) { - struct user64_timeval t; - t.tv_sec = tv_sec; - t.tv_usec = 0; + struct user64_timeval t = {}; + t.tv_sec = tv.tv_sec; + t.tv_usec = tv.tv_usec; return sysctl_io_opaque(req, &t, sizeof(t), NULL); } else { - struct user32_timeval t; - t.tv_sec = tv_sec; - t.tv_usec = 0; + struct user32_timeval t = {}; + t.tv_sec = tv.tv_sec; + t.tv_usec = tv.tv_usec; return sysctl_io_opaque(req, &t, sizeof(t), NULL); } } SYSCTL_PROC(_kern, KERN_BOOTTIME, boottime, - CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED, + CTLTYPE_STRUCT | CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_boottime, "S,timeval", ""); STATIC int @@ -2598,7 +2137,7 @@ sysctl_imgsrcinfo (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) { int error; - struct imgsrc_info info[MAX_IMAGEBOOT_NESTING]; /* 2 for now, no problem */ + struct imgsrc_info info[MAX_IMAGEBOOT_NESTING] = {}; /* 2 for now, no problem */ uint32_t i; vnode_t rvp, devvp; @@ -2660,6 +2199,7 @@ SYSCTL_PROC(_kern, OID_AUTO, imgsrcinfo, SYSCTL_DECL(_kern_timer); SYSCTL_NODE(_kern, OID_AUTO, timer, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "timer"); + SYSCTL_INT(_kern_timer, OID_AUTO, coalescing_enabled, CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, &mach_timer_coalescing_enabled, 0, ""); @@ -2674,11 +2214,12 @@ SYSCTL_QUAD(_kern_timer, OID_AUTO, deadline_tracking_bin_2, SYSCTL_DECL(_kern_timer_longterm); SYSCTL_NODE(_kern_timer, OID_AUTO, longterm, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "longterm"); + /* Must match definition in osfmk/kern/timer_call.c */ enum { THRESHOLD, QCOUNT, ENQUEUES, DEQUEUES, ESCALATES, SCANS, PREEMPTS, - LATENCY, LATENCY_MIN, LATENCY_MAX + LATENCY, LATENCY_MIN, LATENCY_MAX, SCAN_LIMIT, SCAN_INTERVAL, PAUSES }; extern uint64_t timer_sysctl_get(int); extern int timer_sysctl_set(int, uint64_t); @@ -2703,10 +2244,21 @@ sysctl_timer SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, threshold, CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, (void *) THRESHOLD, 0, sysctl_timer, "Q", ""); +SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scan_limit, + CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, + (void *) SCAN_LIMIT, 0, sysctl_timer, "Q", ""); +SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scan_interval, + CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, + (void *) SCAN_INTERVAL, 0, sysctl_timer, "Q", ""); + SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, qlen, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED, (void *) QCOUNT, 0, sysctl_timer, "Q", ""); -#if DEBUG +SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scan_pauses, + CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED, + (void *) PAUSES, 0, sysctl_timer, "Q", ""); + +#if DEBUG SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, enqueues, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED, (void *) ENQUEUES, 0, sysctl_timer, "Q", ""); @@ -2755,6 +2307,8 @@ SYSCTL_PROC(_kern, KERN_USRSTACK64, usrstack64, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_usrstack64, "Q", ""); +#if CONFIG_COREDUMP + SYSCTL_STRING(_kern, KERN_COREFILE, corefile, CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED, corefilename, sizeof(corefilename), ""); @@ -2764,8 +2318,9 @@ sysctl_coredump (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) { #ifdef SECURE_KERNEL + (void)req; return (ENOTSUP); -#endif +#else int new_value, changed; int error = sysctl_io_number(req, do_coredump, sizeof(int), &new_value, &changed); if (changed) { @@ -2775,6 +2330,7 @@ sysctl_coredump error = EINVAL; } return(error); +#endif } SYSCTL_PROC(_kern, KERN_COREDUMP, coredump, @@ -2786,8 +2342,9 @@ sysctl_suid_coredump (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) { #ifdef SECURE_KERNEL + (void)req; return (ENOTSUP); -#endif +#else int new_value, changed; int error = sysctl_io_number(req, sugid_coredump, sizeof(int), &new_value, &changed); if (changed) { @@ -2797,12 +2354,15 @@ sysctl_suid_coredump error = EINVAL; } return(error); +#endif } SYSCTL_PROC(_kern, KERN_SUGID_COREDUMP, sugid_coredump, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_suid_coredump, "I", ""); +#endif /* CONFIG_COREDUMP */ + STATIC int sysctl_delayterm (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) @@ -2956,8 +2516,9 @@ sysctl_nx (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) { #ifdef SECURE_KERNEL + (void)req; return ENOTSUP; -#endif +#else int new_value, changed; int error; @@ -2976,6 +2537,7 @@ sysctl_nx nx_enabled = new_value; } return(error); +#endif /* SECURE_KERNEL */ } @@ -2989,11 +2551,11 @@ sysctl_loadavg (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) { if (proc_is64bit(req->p)) { - struct user64_loadavg loadinfo64; + struct user64_loadavg loadinfo64 = {}; fill_loadavg64(&averunnable, &loadinfo64); return sysctl_io_opaque(req, &loadinfo64, sizeof(loadinfo64), NULL); } else { - struct user32_loadavg loadinfo32; + struct user32_loadavg loadinfo32 = {}; fill_loadavg32(&averunnable, &loadinfo32); return sysctl_io_opaque(req, &loadinfo32, sizeof(loadinfo32), NULL); } @@ -3023,6 +2585,7 @@ sysctl_vm_toggle_address_reuse(__unused struct sysctl_oid *oidp, __unused void * SYSCTL_PROC(_debug, OID_AUTO, toggle_address_reuse, CTLFLAG_ANYBODY | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_vm_toggle_address_reuse,"I",""); + STATIC int sysctl_swapusage (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) @@ -3032,7 +2595,7 @@ sysctl_swapusage uint64_t swap_avail; vm_size_t swap_pagesize; boolean_t swap_encrypted; - struct xsw_usage xsu; + struct xsw_usage xsu = {}; error = macx_swapinfo(&swap_total, &swap_avail, @@ -3068,10 +2631,10 @@ sysctl_freeze_enabled SYSCTL_HANDLER_ARGS error = sysctl_handle_int(oidp, &val, 0, req); if (error || !req->newptr) return (error); - - if (COMPRESSED_PAGER_IS_ACTIVE || DEFAULT_FREEZER_COMPRESSED_PAGER_IS_ACTIVE) { + + if (VM_CONFIG_COMPRESSOR_IS_ACTIVE) { //assert(req->newptr); - printf("Failed this request to set the sysctl\n"); + printf("Failed attempt to set vm.freeze_enabled sysctl\n"); return EINVAL; } @@ -3097,38 +2660,6 @@ SYSCTL_INT(_kern, KERN_SHREG_PRIVATIZABLE, shreg_private, CTLFLAG_RD | CTLFLAG_LOCKED, (int *)NULL, 0, ""); -#if defined(__i386__) || defined(__x86_64__) -STATIC int -sysctl_sysctl_exec_affinity(__unused struct sysctl_oid *oidp, - __unused void *arg1, __unused int arg2, - struct sysctl_req *req) -{ - proc_t cur_proc = req->p; - int error; - - if (req->oldptr != USER_ADDR_NULL) { - cpu_type_t oldcputype = (cur_proc->p_flag & P_AFFINITY) ? CPU_TYPE_POWERPC : CPU_TYPE_I386; - if ((error = SYSCTL_OUT(req, &oldcputype, sizeof(oldcputype)))) - return error; - } - - if (req->newptr != USER_ADDR_NULL) { - cpu_type_t newcputype; - if ((error = SYSCTL_IN(req, &newcputype, sizeof(newcputype)))) - return error; - if (newcputype == CPU_TYPE_I386) - OSBitAndAtomic(~((uint32_t)P_AFFINITY), &cur_proc->p_flag); - else if (newcputype == CPU_TYPE_POWERPC) - OSBitOrAtomic(P_AFFINITY, &cur_proc->p_flag); - else - return (EINVAL); - } - - return 0; -} -SYSCTL_PROC(_sysctl, OID_AUTO, proc_exec_affinity, CTLTYPE_INT|CTLFLAG_RW|CTLFLAG_ANYBODY | CTLFLAG_LOCKED, 0, 0, sysctl_sysctl_exec_affinity ,"I","proc_exec_affinity"); -#endif - STATIC int fetch_process_cputype( proc_t cur_proc, @@ -3153,17 +2684,10 @@ fetch_process_cputype( goto out; } -#if defined(__i386__) || defined(__x86_64__) - if (p->p_flag & P_TRANSLATED) { - ret = CPU_TYPE_POWERPC; - } - else -#endif - { - ret = cpu_type() & ~CPU_ARCH_MASK; - if (IS_64BIT_PROCESS(p)) - ret |= CPU_ARCH_ABI64; - } + ret = cpu_type() & ~CPU_ARCH_MASK; + if (IS_64BIT_PROCESS(p)) + ret |= CPU_ARCH_ABI64; + *cputype = ret; if (refheld != 0) @@ -3221,6 +2745,16 @@ SYSCTL_PROC(_kern, OID_AUTO, singleuser, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_singleuser, "I", ""); +STATIC int sysctl_minimalboot +(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) +{ + return sysctl_io_number(req, minimalboot, sizeof(int), NULL, NULL); +} + +SYSCTL_PROC(_kern, OID_AUTO, minimalboot, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, + 0, 0, sysctl_minimalboot, "I", ""); + /* * Controls for debugging affinity sets - see osfmk/kern/affinity.c */ @@ -3270,9 +2804,15 @@ vm_map_size_t vm_user_wire_limit; /* * There needs to be a more automatic/elegant way to do this */ +#if defined(__ARM__) +SYSCTL_INT(_vm, OID_AUTO, global_no_user_wire_amount, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_no_user_wire_amount, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, global_user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_user_wire_limit, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_user_wire_limit, 0, ""); +#else SYSCTL_QUAD(_vm, OID_AUTO, global_no_user_wire_amount, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_no_user_wire_amount, ""); SYSCTL_QUAD(_vm, OID_AUTO, global_user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_user_wire_limit, ""); SYSCTL_QUAD(_vm, OID_AUTO, user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_user_wire_limit, ""); +#endif extern int vm_map_copy_overwrite_aligned_src_not_internal; extern int vm_map_copy_overwrite_aligned_src_not_symmetric; @@ -3289,8 +2829,13 @@ SYSCTL_INT(_vm, OID_AUTO, vm_page_external_count, CTLFLAG_RD | CTLFLAG_LOCKED, & SYSCTL_INT(_vm, OID_AUTO, vm_page_filecache_min, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_filecache_min, 0, ""); extern int vm_compressor_mode; +extern int vm_compressor_is_active; +extern int vm_compressor_available; +extern uint32_t vm_ripe_target_age; extern uint32_t swapout_target_age; extern int64_t compressor_bytes_used; +extern int64_t c_segment_input_bytes; +extern int64_t c_segment_compressed_bytes; extern uint32_t compressor_eval_period_in_msecs; extern uint32_t compressor_sample_min_in_msecs; extern uint32_t compressor_sample_max_in_msecs; @@ -3300,10 +2845,21 @@ extern uint32_t vm_compressor_minorcompact_threshold_divisor; extern uint32_t vm_compressor_majorcompact_threshold_divisor; extern uint32_t vm_compressor_unthrottle_threshold_divisor; extern uint32_t vm_compressor_catchup_threshold_divisor; +extern uint32_t vm_compressor_time_thread; +#if DEVELOPMENT || DEBUG +extern vmct_stats_t vmct_stats; +#endif -SYSCTL_INT(_vm, OID_AUTO, compressor_mode, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_mode, 0, ""); +SYSCTL_QUAD(_vm, OID_AUTO, compressor_input_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &c_segment_input_bytes, ""); +SYSCTL_QUAD(_vm, OID_AUTO, compressor_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &c_segment_compressed_bytes, ""); SYSCTL_QUAD(_vm, OID_AUTO, compressor_bytes_used, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_bytes_used, ""); + +SYSCTL_INT(_vm, OID_AUTO, compressor_mode, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_mode, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, compressor_is_active, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_is_active, 0, ""); SYSCTL_INT(_vm, OID_AUTO, compressor_swapout_target_age, CTLFLAG_RD | CTLFLAG_LOCKED, &swapout_target_age, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, compressor_available, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_available, 0, ""); + +SYSCTL_INT(_vm, OID_AUTO, vm_ripe_target_age_in_secs, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_ripe_target_age, 0, ""); SYSCTL_INT(_vm, OID_AUTO, compressor_eval_period_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_eval_period_in_msecs, 0, ""); SYSCTL_INT(_vm, OID_AUTO, compressor_sample_min_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_sample_min_in_msecs, 0, ""); @@ -3315,14 +2871,201 @@ SYSCTL_INT(_vm, OID_AUTO, compressor_majorcompact_threshold_divisor, CTLFLAG_RW SYSCTL_INT(_vm, OID_AUTO, compressor_unthrottle_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_unthrottle_threshold_divisor, 0, ""); SYSCTL_INT(_vm, OID_AUTO, compressor_catchup_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_catchup_threshold_divisor, 0, ""); +SYSCTL_STRING(_vm, OID_AUTO, swapfileprefix, CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED, swapfilename, sizeof(swapfilename) - SWAPFILENAME_INDEX_LEN, ""); + +SYSCTL_INT(_vm, OID_AUTO, compressor_timing_enabled, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_time_thread, 0, ""); + +#if DEVELOPMENT || DEBUG +SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_runtime0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_runtimes[0], ""); +SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_runtime1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_runtimes[1], ""); + +SYSCTL_QUAD(_vm, OID_AUTO, compressor_threads_total, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_cthreads_total, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_pages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_pages[0], ""); +SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_pages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_pages[1], ""); + +SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_iterations0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_iterations[0], ""); +SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_iterations1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_iterations[1], ""); + +SYSCTL_INT(_vm, OID_AUTO, compressor_thread_minpages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_minpages[0], 0, ""); +SYSCTL_INT(_vm, OID_AUTO, compressor_thread_minpages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_minpages[1], 0, ""); + +SYSCTL_INT(_vm, OID_AUTO, compressor_thread_maxpages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_maxpages[0], 0, ""); +SYSCTL_INT(_vm, OID_AUTO, compressor_thread_maxpages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_maxpages[1], 0, ""); + +#endif + +SYSCTL_QUAD(_vm, OID_AUTO, lz4_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compressions, ""); +SYSCTL_QUAD(_vm, OID_AUTO, lz4_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compression_failures, ""); +SYSCTL_QUAD(_vm, OID_AUTO, lz4_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compressed_bytes, ""); +SYSCTL_QUAD(_vm, OID_AUTO, lz4_wk_compression_delta, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_wk_compression_delta, ""); +SYSCTL_QUAD(_vm, OID_AUTO, lz4_wk_compression_negative_delta, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_wk_compression_negative_delta, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, lz4_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_decompressions, ""); +SYSCTL_QUAD(_vm, OID_AUTO, lz4_decompressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_decompressed_bytes, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, uc_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.uc_decompressions, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, wk_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressions, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, wk_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_cabstime, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, wkh_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_cabstime, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wkh_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_compressions, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, wks_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_cabstime, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wks_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compressions, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, wk_compressions_exclusive, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressions_exclusive, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wk_sv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_sv_compressions, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wk_mzv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_mzv_compressions, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wk_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compression_failures, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wk_compressed_bytes_exclusive, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressed_bytes_exclusive, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wk_compressed_bytes_total, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressed_bytes_total, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, wks_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compressed_bytes, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wks_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compression_failures, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wks_sv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_sv_compressions, ""); + + +SYSCTL_QUAD(_vm, OID_AUTO, wk_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_decompressions, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, wk_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_dabstime, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, wkh_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_dabstime, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wkh_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_decompressions, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, wks_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_dabstime, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wks_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_decompressions, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, wk_decompressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_decompressed_bytes, ""); +SYSCTL_QUAD(_vm, OID_AUTO, wk_sv_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_sv_decompressions, ""); + +SYSCTL_INT(_vm, OID_AUTO, lz4_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_threshold, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, wkdm_reeval_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.wkdm_reeval_threshold, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, lz4_max_failure_skips, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_failure_skips, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, lz4_max_failure_run_length, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_failure_run_length, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, lz4_max_preselects, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_preselects, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, lz4_run_preselection_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_run_preselection_threshold, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, lz4_run_continue_bytes, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_run_continue_bytes, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, lz4_profitable_bytes, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_profitable_bytes, 0, ""); +#if DEVELOPMENT || DEBUG +extern int vm_compressor_current_codec; +extern int vm_compressor_test_seg_wp; +extern boolean_t vm_compressor_force_sw_wkdm; +SYSCTL_INT(_vm, OID_AUTO, compressor_codec, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_current_codec, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, compressor_test_wp, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_test_seg_wp, 0, ""); + +SYSCTL_INT(_vm, OID_AUTO, wksw_force, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_force_sw_wkdm, 0, ""); +extern int precompy, wkswhw; + +SYSCTL_INT(_vm, OID_AUTO, precompy, CTLFLAG_RW | CTLFLAG_LOCKED, &precompy, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, wkswhw, CTLFLAG_RW | CTLFLAG_LOCKED, &wkswhw, 0, ""); +extern unsigned int vm_ktrace_enabled; +SYSCTL_INT(_vm, OID_AUTO, vm_ktrace, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_ktrace_enabled, 0, ""); +#endif + +#if CONFIG_PHANTOM_CACHE +extern uint32_t phantom_cache_thrashing_threshold; +extern uint32_t phantom_cache_eval_period_in_msecs; +extern uint32_t phantom_cache_thrashing_threshold_ssd; + + +SYSCTL_INT(_vm, OID_AUTO, phantom_cache_eval_period_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_eval_period_in_msecs, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, phantom_cache_thrashing_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_thrashing_threshold, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, phantom_cache_thrashing_threshold_ssd, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_thrashing_threshold_ssd, 0, ""); +#endif + +#if CONFIG_BACKGROUND_QUEUE + +extern uint32_t vm_page_background_count; +extern uint32_t vm_page_background_target; +extern uint32_t vm_page_background_internal_count; +extern uint32_t vm_page_background_external_count; +extern uint32_t vm_page_background_mode; +extern uint32_t vm_page_background_exclude_external; +extern uint64_t vm_page_background_promoted_count; +extern uint64_t vm_pageout_considered_bq_internal; +extern uint64_t vm_pageout_considered_bq_external; +extern uint64_t vm_pageout_rejected_bq_internal; +extern uint64_t vm_pageout_rejected_bq_external; + +SYSCTL_INT(_vm, OID_AUTO, vm_page_background_mode, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_mode, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, vm_page_background_exclude_external, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_exclude_external, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, vm_page_background_target, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_target, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, vm_page_background_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_count, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, vm_page_background_internal_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_internal_count, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, vm_page_background_external_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_external_count, 0, ""); + +SYSCTL_QUAD(_vm, OID_AUTO, vm_page_background_promoted_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_promoted_count, ""); +SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_considered_bq_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_considered_bq_internal, ""); +SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_considered_bq_external, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_considered_bq_external, ""); +SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_rejected_bq_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_rejected_bq_internal, ""); +SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_rejected_bq_external, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_rejected_bq_external, ""); + +#endif + +#if (DEVELOPMENT || DEBUG) + +SYSCTL_UINT(_vm, OID_AUTO, vm_page_creation_throttled_hard, + CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, + &vm_page_creation_throttled_hard, 0, ""); + +SYSCTL_UINT(_vm, OID_AUTO, vm_page_creation_throttled_soft, + CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, + &vm_page_creation_throttled_soft, 0, ""); + +extern uint32_t vm_pageout_memorystatus_fb_factor_nr; +extern uint32_t vm_pageout_memorystatus_fb_factor_dr; +SYSCTL_INT(_vm, OID_AUTO, vm_pageout_memorystatus_fb_factor_nr, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_memorystatus_fb_factor_nr, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, vm_pageout_memorystatus_fb_factor_dr, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_memorystatus_fb_factor_dr, 0, ""); + +extern uint32_t vm_grab_anon_overrides; +extern uint32_t vm_grab_anon_nops; + +SYSCTL_INT(_vm, OID_AUTO, vm_grab_anon_overrides, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_grab_anon_overrides, 0, ""); +SYSCTL_INT(_vm, OID_AUTO, vm_grab_anon_nops, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_grab_anon_nops, 0, ""); + +/* log message counters for persistence mode */ +extern uint32_t oslog_p_total_msgcount; +extern uint32_t oslog_p_metadata_saved_msgcount; +extern uint32_t oslog_p_metadata_dropped_msgcount; +extern uint32_t oslog_p_error_count; +extern uint32_t oslog_p_saved_msgcount; +extern uint32_t oslog_p_dropped_msgcount; +extern uint32_t oslog_p_boot_dropped_msgcount; + +/* log message counters for streaming mode */ +extern uint32_t oslog_s_total_msgcount; +extern uint32_t oslog_s_metadata_msgcount; +extern uint32_t oslog_s_error_count; +extern uint32_t oslog_s_streamed_msgcount; +extern uint32_t oslog_s_dropped_msgcount; + +SYSCTL_UINT(_debug, OID_AUTO, oslog_p_total_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_total_msgcount, 0, ""); +SYSCTL_UINT(_debug, OID_AUTO, oslog_p_metadata_saved_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_metadata_saved_msgcount, 0, ""); +SYSCTL_UINT(_debug, OID_AUTO, oslog_p_metadata_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_metadata_dropped_msgcount, 0, ""); +SYSCTL_UINT(_debug, OID_AUTO, oslog_p_error_count, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_error_count, 0, ""); +SYSCTL_UINT(_debug, OID_AUTO, oslog_p_saved_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_saved_msgcount, 0, ""); +SYSCTL_UINT(_debug, OID_AUTO, oslog_p_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_dropped_msgcount, 0, ""); +SYSCTL_UINT(_debug, OID_AUTO, oslog_p_boot_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_boot_dropped_msgcount, 0, ""); + +SYSCTL_UINT(_debug, OID_AUTO, oslog_s_total_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_total_msgcount, 0, ""); +SYSCTL_UINT(_debug, OID_AUTO, oslog_s_metadata_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_metadata_msgcount, 0, ""); +SYSCTL_UINT(_debug, OID_AUTO, oslog_s_error_count, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_error_count, 0, ""); +SYSCTL_UINT(_debug, OID_AUTO, oslog_s_streamed_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_streamed_msgcount, 0, ""); +SYSCTL_UINT(_debug, OID_AUTO, oslog_s_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_dropped_msgcount, 0, ""); + + +#endif /* DEVELOPMENT || DEBUG */ + /* - * enable back trace events for thread blocks + * Enable tracing of voucher contents */ +extern uint32_t ipc_voucher_trace_contents; -extern uint32_t kdebug_thread_block; - -SYSCTL_INT (_kern, OID_AUTO, kdebug_thread_block, - CTLFLAG_RW | CTLFLAG_LOCKED, &kdebug_thread_block, 0, "kdebug thread_block"); +SYSCTL_INT (_kern, OID_AUTO, ipc_voucher_trace_contents, + CTLFLAG_RW | CTLFLAG_LOCKED, &ipc_voucher_trace_contents, 0, "Enable tracing voucher contents"); /* * Kernel stack size and depth @@ -3332,6 +3075,10 @@ SYSCTL_INT (_kern, OID_AUTO, stack_size, SYSCTL_INT (_kern, OID_AUTO, stack_depth_max, CTLFLAG_RD | CTLFLAG_LOCKED, (int *) &kernel_stack_depth_max, 0, "Max kernel stack depth at interrupt or context switch"); +extern unsigned int kern_feature_overrides; +SYSCTL_INT (_kern, OID_AUTO, kern_feature_overrides, + CTLFLAG_RD | CTLFLAG_LOCKED, &kern_feature_overrides, 0, "Kernel feature override mask"); + /* * enable back trace for port allocations */ @@ -3345,13 +3092,6 @@ SYSCTL_INT(_kern, OID_AUTO, ipc_portbt, * Scheduler sysctls */ -/* - * See osfmk/kern/sched_prim.c for the corresponding definition - * in osfmk/. If either version changes, update the other. - */ -#define SCHED_STRING_MAX_LENGTH (48) - -extern char sched_string[SCHED_STRING_MAX_LENGTH]; SYSCTL_STRING(_kern, OID_AUTO, sched, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, sched_string, sizeof(sched_string), @@ -3361,3 +3101,477 @@ SYSCTL_STRING(_kern, OID_AUTO, sched, * Only support runtime modification on embedded platforms * with development config enabled */ +#if CONFIG_EMBEDDED +#if !SECURE_KERNEL +extern int precise_user_kernel_time; +SYSCTL_INT(_kern, OID_AUTO, precise_user_kernel_time, + CTLFLAG_RW | CTLFLAG_LOCKED, + &precise_user_kernel_time, 0, "Precise accounting of kernel vs. user time"); +#endif +#endif + + +/* Parameters related to timer coalescing tuning, to be replaced + * with a dedicated systemcall in the future. + */ +/* Enable processing pending timers in the context of any other interrupt + * Coalescing tuning parameters for various thread/task attributes */ +STATIC int +sysctl_timer_user_us_kernel_abstime SYSCTL_HANDLER_ARGS +{ +#pragma unused(oidp) + int size = arg2; /* subcommand*/ + int error; + int changed = 0; + uint64_t old_value_ns; + uint64_t new_value_ns; + uint64_t value_abstime; + if (size == sizeof(uint32_t)) + value_abstime = *((uint32_t *)arg1); + else if (size == sizeof(uint64_t)) + value_abstime = *((uint64_t *)arg1); + else return ENOTSUP; + + absolutetime_to_nanoseconds(value_abstime, &old_value_ns); + error = sysctl_io_number(req, old_value_ns, sizeof(old_value_ns), &new_value_ns, &changed); + if ((error) || (!changed)) + return error; + + nanoseconds_to_absolutetime(new_value_ns, &value_abstime); + if (size == sizeof(uint32_t)) + *((uint32_t *)arg1) = (uint32_t)value_abstime; + else + *((uint64_t *)arg1) = value_abstime; + return error; +} + +SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_bg_scale, + CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.timer_coalesce_bg_shift, 0, ""); +SYSCTL_PROC(_kern, OID_AUTO, timer_resort_threshold_ns, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.timer_resort_threshold_abstime, + sizeof(tcoal_prio_params.timer_resort_threshold_abstime), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); +SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_bg_ns_max, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.timer_coalesce_bg_abstime_max, + sizeof(tcoal_prio_params.timer_coalesce_bg_abstime_max), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); + +SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_kt_scale, + CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.timer_coalesce_kt_shift, 0, ""); + +SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_kt_ns_max, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.timer_coalesce_kt_abstime_max, + sizeof(tcoal_prio_params.timer_coalesce_kt_abstime_max), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); + +SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_fp_scale, + CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.timer_coalesce_fp_shift, 0, ""); + +SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_fp_ns_max, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.timer_coalesce_fp_abstime_max, + sizeof(tcoal_prio_params.timer_coalesce_fp_abstime_max), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); + +SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_ts_scale, + CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.timer_coalesce_ts_shift, 0, ""); + +SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_ts_ns_max, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.timer_coalesce_ts_abstime_max, + sizeof(tcoal_prio_params.timer_coalesce_ts_abstime_max), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); + +SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier0_scale, + CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_scale[0], 0, ""); + +SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier0_ns_max, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_abstime_max[0], + sizeof(tcoal_prio_params.latency_qos_abstime_max[0]), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); + +SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier1_scale, + CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_scale[1], 0, ""); + +SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier1_ns_max, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_abstime_max[1], + sizeof(tcoal_prio_params.latency_qos_abstime_max[1]), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); + +SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier2_scale, + CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_scale[2], 0, ""); + +SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier2_ns_max, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_abstime_max[2], + sizeof(tcoal_prio_params.latency_qos_abstime_max[2]), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); + +SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier3_scale, + CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_scale[3], 0, ""); + +SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier3_ns_max, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_abstime_max[3], + sizeof(tcoal_prio_params.latency_qos_abstime_max[3]), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); + +SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier4_scale, + CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_scale[4], 0, ""); + +SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier4_ns_max, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_abstime_max[4], + sizeof(tcoal_prio_params.latency_qos_abstime_max[4]), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); + +SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier5_scale, + CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_scale[5], 0, ""); + +SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier5_ns_max, + CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, + &tcoal_prio_params.latency_qos_abstime_max[5], + sizeof(tcoal_prio_params.latency_qos_abstime_max[5]), + sysctl_timer_user_us_kernel_abstime, + "Q", ""); + +/* Communicate the "user idle level" heuristic to the timer layer, and + * potentially other layers in the future. + */ + +static int +timer_user_idle_level(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) { + int new_value = 0, old_value = 0, changed = 0, error; + + old_value = timer_get_user_idle_level(); + + error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed); + + if (error == 0 && changed) { + if (timer_set_user_idle_level(new_value) != KERN_SUCCESS) + error = ERANGE; + } + + return error; +} + +SYSCTL_PROC(_machdep, OID_AUTO, user_idle_level, + CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, + 0, 0, + timer_user_idle_level, "I", "User idle level heuristic, 0-128"); + +#if HYPERVISOR +SYSCTL_INT(_kern, OID_AUTO, hv_support, + CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED, + &hv_support_available, 0, ""); +#endif + +#if CONFIG_EMBEDDED +STATIC int +sysctl_darkboot SYSCTL_HANDLER_ARGS +{ + int err = 0, value = 0; +#pragma unused(oidp, arg1, arg2, err, value, req) + + /* + * Handle the sysctl request. + * + * If this is a read, the function will set the value to the current darkboot value. Otherwise, + * we'll get the request identifier into "value" and then we can honor it. + */ + if ((err = sysctl_io_number(req, darkboot, sizeof(int), &value, NULL)) != 0) { + goto exit; + } + + /* writing requested, let's process the request */ + if (req->newptr) { + /* writing is protected by an entitlement */ + if (priv_check_cred(kauth_cred_get(), PRIV_DARKBOOT, 0) != 0) { + err = EPERM; + goto exit; + } + + switch (value) { + case MEMORY_MAINTENANCE_DARK_BOOT_UNSET: + /* + * If the darkboot sysctl is unset, the NVRAM variable + * must be unset too. If that's not the case, it means + * someone is doing something crazy and not supported. + */ + if (darkboot != 0) { + int ret = PERemoveNVRAMProperty(MEMORY_MAINTENANCE_DARK_BOOT_NVRAM_NAME); + if (ret) { + darkboot = 0; + } else { + err = EINVAL; + } + } + break; + case MEMORY_MAINTENANCE_DARK_BOOT_SET: + darkboot = 1; + break; + case MEMORY_MAINTENANCE_DARK_BOOT_SET_PERSISTENT: { + /* + * Set the NVRAM and update 'darkboot' in case + * of success. Otherwise, do not update + * 'darkboot' and report the failure. + */ + if (PEWriteNVRAMBooleanProperty(MEMORY_MAINTENANCE_DARK_BOOT_NVRAM_NAME, TRUE)) { + darkboot = 1; + } else { + err = EINVAL; + } + + break; + } + default: + err = EINVAL; + } + } + +exit: + return err; +} + +SYSCTL_PROC(_kern, OID_AUTO, darkboot, + CTLFLAG_KERN | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_ANYBODY, + 0, 0, sysctl_darkboot, "I", ""); +#endif + +#if DEVELOPMENT || DEBUG +#include +/* This should result in a fatal exception, verifying that "sysent" is + * write-protected. + */ +static int +kern_sysent_write(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) { + uint64_t new_value = 0, old_value = 0; + int changed = 0, error; + + error = sysctl_io_number(req, old_value, sizeof(uint64_t), &new_value, &changed); + if ((error == 0) && changed) { + volatile uint32_t *wraddr = (uint32_t *) &sysent[0]; + *wraddr = 0; + printf("sysent[0] write succeeded\n"); + } + return error; +} + +SYSCTL_PROC(_kern, OID_AUTO, sysent_const_check, + CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, + 0, 0, + kern_sysent_write, "I", "Attempt sysent[0] write"); + +#endif + +#if DEVELOPMENT || DEBUG +SYSCTL_COMPAT_INT(_kern, OID_AUTO, development, CTLFLAG_RD | CTLFLAG_MASKED, NULL, 1, ""); +#else +SYSCTL_COMPAT_INT(_kern, OID_AUTO, development, CTLFLAG_RD | CTLFLAG_MASKED, NULL, 0, ""); +#endif + + +#if DEVELOPMENT || DEBUG + +static int +sysctl_panic_test SYSCTL_HANDLER_ARGS +{ +#pragma unused(arg1, arg2) + int rval = 0; + char str[32] = "entry prelog postlog postcore"; + + rval = sysctl_handle_string(oidp, str, sizeof(str), req); + + if (rval == 0 && req->newptr) { + if (strncmp("entry", str, strlen("entry")) == 0) { + panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_ENTRY, "test recursive panic at entry"); + } else if (strncmp("prelog", str, strlen("prelog")) == 0) { + panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_PRELOG, "test recursive panic prior to writing a paniclog"); + } else if (strncmp("postlog", str, strlen("postlog")) == 0) { + panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_POSTLOG, "test recursive panic subsequent to paniclog"); + } else if (strncmp("postcore", str, strlen("postcore")) == 0) { + panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_POSTCORE, "test recursive panic subsequent to on-device core"); + } + } + + return rval; +} + +static int +sysctl_debugger_test SYSCTL_HANDLER_ARGS +{ +#pragma unused(arg1, arg2) + int rval = 0; + char str[32] = "entry prelog postlog postcore"; + + rval = sysctl_handle_string(oidp, str, sizeof(str), req); + + if (rval == 0 && req->newptr) { + if (strncmp("entry", str, strlen("entry")) == 0) { + DebuggerWithContext(0, NULL, "test recursive panic via debugger at entry", DEBUGGER_OPTION_RECURPANIC_ENTRY); + } else if (strncmp("prelog", str, strlen("prelog")) == 0) { + DebuggerWithContext(0, NULL, "test recursive panic via debugger prior to writing a paniclog", DEBUGGER_OPTION_RECURPANIC_PRELOG); + } else if (strncmp("postlog", str, strlen("postlog")) == 0) { + DebuggerWithContext(0, NULL, "test recursive panic via debugger subsequent to paniclog", DEBUGGER_OPTION_RECURPANIC_POSTLOG); + } else if (strncmp("postcore", str, strlen("postcore")) == 0) { + DebuggerWithContext(0, NULL, "test recursive panic via debugger subsequent to on-device core", DEBUGGER_OPTION_RECURPANIC_POSTCORE); + } + } + + return rval; +} + +decl_lck_spin_data(, spinlock_panic_test_lock) + +__attribute__((noreturn)) +static void +spinlock_panic_test_acquire_spinlock(void * arg __unused, wait_result_t wres __unused) +{ + lck_spin_lock(&spinlock_panic_test_lock); + while (1) { ; } +} + +static int +sysctl_spinlock_panic_test SYSCTL_HANDLER_ARGS +{ +#pragma unused(oidp, arg1, arg2) + if (req->newlen == 0) + return EINVAL; + + thread_t panic_spinlock_thread; + /* Initialize panic spinlock */ + lck_grp_t * panic_spinlock_grp; + lck_grp_attr_t * panic_spinlock_grp_attr; + lck_attr_t * panic_spinlock_attr; + + panic_spinlock_grp_attr = lck_grp_attr_alloc_init(); + panic_spinlock_grp = lck_grp_alloc_init("panic_spinlock", panic_spinlock_grp_attr); + panic_spinlock_attr = lck_attr_alloc_init(); + + lck_spin_init(&spinlock_panic_test_lock, panic_spinlock_grp, panic_spinlock_attr); + + + /* Create thread to acquire spinlock */ + if (kernel_thread_start(spinlock_panic_test_acquire_spinlock, NULL, &panic_spinlock_thread) != KERN_SUCCESS) { + return EBUSY; + } + + /* Try to acquire spinlock -- should panic eventually */ + lck_spin_lock(&spinlock_panic_test_lock); + while(1) { ; } +} + +__attribute__((noreturn)) +static void +simultaneous_panic_worker +(void * arg, wait_result_t wres __unused) +{ + atomic_int *start_panic = (atomic_int *)arg; + + while (!atomic_load(start_panic)) { ; } + panic("SIMULTANEOUS PANIC TEST: INITIATING PANIC FROM CPU %d", cpu_number()); + __builtin_unreachable(); +} + +static int +sysctl_simultaneous_panic_test SYSCTL_HANDLER_ARGS +{ +#pragma unused(oidp, arg1, arg2) + if (req->newlen == 0) + return EINVAL; + + int i = 0, threads_to_create = 2 * processor_count; + atomic_int start_panic = 0; + unsigned int threads_created = 0; + thread_t new_panic_thread; + + for (i = threads_to_create; i > 0; i--) { + if (kernel_thread_start(simultaneous_panic_worker, (void *) &start_panic, &new_panic_thread) == KERN_SUCCESS) { + threads_created++; + } + } + + /* FAIL if we couldn't create at least processor_count threads */ + if (threads_created < processor_count) { + panic("SIMULTANEOUS PANIC TEST: FAILED TO CREATE ENOUGH THREADS, ONLY CREATED %d (of %d)", + threads_created, threads_to_create); + } + + atomic_exchange(&start_panic, 1); + while (1) { ; } +} + +SYSCTL_PROC(_debug, OID_AUTO, panic_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_panic_test, "A", "panic test"); +SYSCTL_PROC(_debug, OID_AUTO, debugger_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_debugger_test, "A", "debugger test"); +SYSCTL_PROC(_debug, OID_AUTO, spinlock_panic_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_spinlock_panic_test, "A", "spinlock panic test"); +SYSCTL_PROC(_debug, OID_AUTO, simultaneous_panic_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_simultaneous_panic_test, "A", "simultaneous panic test"); + + +#endif /* DEVELOPMENT || DEBUG */ + +const uint32_t thread_groups_supported = 0; + +STATIC int +sysctl_thread_groups_supported (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) +{ + int value = thread_groups_supported; + return sysctl_io_number(req, value, sizeof(value), NULL, NULL); +} + +SYSCTL_PROC(_kern, OID_AUTO, thread_groups_supported, CTLFLAG_RD | CTLFLAG_LOCKED | CTLFLAG_KERN, + 0, 0, &sysctl_thread_groups_supported, "I", "thread groups supported"); + +static int +sysctl_grade_cputype SYSCTL_HANDLER_ARGS +{ +#pragma unused(arg1, arg2, oidp) + int error = 0; + int type_tuple[2] = {}; + int return_value = 0; + + error = SYSCTL_IN(req, &type_tuple, sizeof(type_tuple)); + + if (error) { + return error; + } + + return_value = grade_binary(type_tuple[0], type_tuple[1]); + + error = SYSCTL_OUT(req, &return_value, sizeof(return_value)); + + if (error) { + return error; + } + + return error; +} + +SYSCTL_PROC(_kern, OID_AUTO, grade_cputype, + CTLFLAG_RW|CTLFLAG_ANYBODY|CTLFLAG_MASKED|CTLFLAG_LOCKED|CTLTYPE_OPAQUE, + 0, 0, &sysctl_grade_cputype, "S", + "grade value of cpu_type_t+cpu_sub_type_t");