+
+
+/*
+ * Max number of concurrent aio requests
+ */
+STATIC int
+sysctl_aiomax
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, aio_max_requests, sizeof(int), &new_value, &changed);
+ if (changed) {
+ /* make sure the system-wide limit is greater than the per process limit */
+ if (new_value >= aio_max_requests_per_process && new_value <= AIO_MAX_REQUESTS)
+ aio_max_requests = new_value;
+ else
+ error = EINVAL;
+ }
+ return(error);
+}
+
+
+/*
+ * Max number of concurrent aio requests per process
+ */
+STATIC int
+sysctl_aioprocmax
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, aio_max_requests_per_process, sizeof(int), &new_value, &changed);
+ if (changed) {
+ /* make sure per process limit is less than the system-wide limit */
+ if (new_value <= aio_max_requests && new_value >= AIO_LISTIO_MAX)
+ aio_max_requests_per_process = new_value;
+ else
+ error = EINVAL;
+ }
+ return(error);
+}
+
+
+/*
+ * Max number of async IO worker threads
+ */
+STATIC int
+sysctl_aiothreads
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, aio_worker_threads, sizeof(int), &new_value, &changed);
+ if (changed) {
+ /* we only allow an increase in the number of worker threads */
+ if (new_value > aio_worker_threads ) {
+ _aio_create_worker_threads((new_value - aio_worker_threads));
+ aio_worker_threads = new_value;
+ }
+ else
+ error = EINVAL;
+ }
+ return(error);
+}
+
+
+/*
+ * System-wide limit on the max number of processes
+ */
+STATIC int
+sysctl_maxproc
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, maxproc, sizeof(int), &new_value, &changed);
+ if (changed) {
+ AUDIT_ARG(value32, new_value);
+ /* make sure the system-wide limit is less than the configured hard
+ limit set at kernel compilation */
+ if (new_value <= hard_maxproc && new_value > 0)
+ maxproc = new_value;
+ else
+ error = EINVAL;
+ }
+ return(error);
+}
+
+SYSCTL_STRING(_kern, KERN_OSTYPE, ostype,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ ostype, 0, "");
+SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ osrelease, 0, "");
+SYSCTL_INT(_kern, KERN_OSREV, osrevision,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, BSD, "");
+SYSCTL_STRING(_kern, KERN_VERSION, version,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ version, 0, "");
+SYSCTL_STRING(_kern, OID_AUTO, uuid,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &kernel_uuid_string[0], 0, "");
+
+#if DEBUG
+int debug_kprint_syscall = 0;
+char debug_kprint_syscall_process[MAXCOMLEN+1];
+
+/* Thread safe: bits and string value are not used to reclaim state */
+SYSCTL_INT (_debug, OID_AUTO, kprint_syscall,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &debug_kprint_syscall, 0, "kprintf syscall tracing");
+SYSCTL_STRING(_debug, OID_AUTO, kprint_syscall_process,
+ CTLFLAG_RW | CTLFLAG_LOCKED, debug_kprint_syscall_process, sizeof(debug_kprint_syscall_process),
+ "name of process for kprintf syscall tracing");
+
+int debug_kprint_current_process(const char **namep)
+{
+ struct proc *p = current_proc();
+
+ if (p == NULL) {
+ return 0;
+ }
+
+ if (debug_kprint_syscall_process[0]) {
+ /* user asked to scope tracing to a particular process name */
+ if(0 == strncmp(debug_kprint_syscall_process,
+ p->p_comm, sizeof(debug_kprint_syscall_process))) {
+ /* no value in telling the user that we traced what they asked */
+ if(namep) *namep = NULL;
+
+ return 1;
+ } else {
+ return 0;
+ }
+ }
+
+ /* trace all processes. Tell user what we traced */
+ if (namep) {
+ *namep = p->p_comm;
+ }
+
+ return 1;
+}
+#endif
+
+/* PR-5293665: need to use a callback function for kern.osversion to set
+ * osversion in IORegistry */
+
+STATIC int
+sysctl_osversion(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+{
+ int rval = 0;
+
+ rval = sysctl_handle_string(oidp, arg1, arg2, req);
+
+ if (req->newptr) {
+ IORegistrySetOSBuildVersion((char *)arg1);
+ }
+
+ return rval;
+}
+
+SYSCTL_PROC(_kern, KERN_OSVERSION, osversion,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED,
+ osversion, 256 /* OSVERSIZE*/,
+ sysctl_osversion, "A", "");
+
+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];
+
+ strlcpy(buf, PE_boot_args(), 256);
+ error = sysctl_io_string(req, buf, 256, 0, NULL);
+ return(error);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, bootargs,
+ CTLFLAG_LOCKED | CTLFLAG_RD | CTLFLAG_KERN | CTLTYPE_STRING,
+ NULL, 0,
+ sysctl_sysctl_bootargs, "A", "bootargs");
+
+SYSCTL_INT(_kern, KERN_MAXFILES, maxfiles,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &maxfiles, 0, "");
+SYSCTL_INT(_kern, KERN_ARGMAX, argmax,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, ARG_MAX, "");
+SYSCTL_INT(_kern, KERN_POSIX1, posix1version,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, _POSIX_VERSION, "");
+SYSCTL_INT(_kern, KERN_NGROUPS, ngroups,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, NGROUPS_MAX, "");
+SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, 1, "");
+#if 1 /* _POSIX_SAVED_IDS from <unistd.h> */
+SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, 1, "");
+#else
+SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ NULL, 0, "");
+#endif
+SYSCTL_INT(_kern, OID_AUTO, num_files,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &nfiles, 0, "");
+SYSCTL_COMPAT_INT(_kern, OID_AUTO, num_vnodes,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &numvnodes, 0, "");
+SYSCTL_INT(_kern, OID_AUTO, num_tasks,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &task_max, 0, "");
+SYSCTL_INT(_kern, OID_AUTO, num_threads,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &thread_max, 0, "");
+SYSCTL_INT(_kern, OID_AUTO, num_taskthreads,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &task_threadmax, 0, "");
+
+STATIC int
+sysctl_maxvnodes (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int oldval = desiredvnodes;
+ int error = sysctl_io_number(req, desiredvnodes, sizeof(int), &desiredvnodes, NULL);
+
+ if (oldval != desiredvnodes) {
+ reset_vmobjectcache(oldval, desiredvnodes);
+ resize_namecache(desiredvnodes);
+ }
+
+ return(error);
+}
+
+SYSCTL_INT(_kern, OID_AUTO, namecache_disabled,
+ CTLFLAG_RW | CTLFLAG_LOCKED,
+ &nc_disabled, 0, "");
+
+SYSCTL_PROC(_kern, KERN_MAXVNODES, maxvnodes,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_maxvnodes, "I", "");
+
+SYSCTL_PROC(_kern, KERN_MAXPROC, maxproc,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_maxproc, "I", "");
+
+SYSCTL_PROC(_kern, KERN_AIOMAX, aiomax,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_aiomax, "I", "");
+
+SYSCTL_PROC(_kern, KERN_AIOPROCMAX, aioprocmax,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_aioprocmax, "I", "");
+
+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, "");
+#endif
+
+STATIC int
+sysctl_securelvl
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, securelevel, sizeof(int), &new_value, &changed);
+ if (changed) {
+ if (!(new_value < securelevel && req->p->p_pid != 1)) {
+ proc_list_lock();
+ securelevel = new_value;
+ proc_list_unlock();
+ } else {
+ error = EPERM;
+ }
+ }
+ return(error);
+}
+
+SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_securelvl, "I", "");
+
+
+STATIC int
+sysctl_domainname
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int error, changed;
+ error = sysctl_io_string(req, domainname, sizeof(domainname), 0, &changed);
+ if (changed) {
+ domainnamelen = strlen(domainname);
+ }
+ return(error);
+}
+
+SYSCTL_PROC(_kern, KERN_DOMAINNAME, nisdomainname,
+ CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_domainname, "A", "");
+
+SYSCTL_COMPAT_INT(_kern, KERN_HOSTID, hostid,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &hostid, 0, "");
+
+STATIC int
+sysctl_hostname
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int error, changed;
+ error = sysctl_io_string(req, hostname, sizeof(hostname), 1, &changed);
+ if (changed) {
+ hostnamelen = req->newlen;
+ }
+ return(error);
+}
+
+
+SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname,
+ CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_hostname, "A", "");
+
+STATIC int
+sysctl_procname
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ /* Original code allowed writing, I'm copying this, although this all makes
+ no sense to me. Besides, this sysctl is never used. */
+ return sysctl_io_string(req, &req->p->p_name[0], (2*MAXCOMLEN+1), 1, NULL);
+}
+
+SYSCTL_PROC(_kern, KERN_PROCNAME, procname,
+ CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
+ 0, 0, sysctl_procname, "A", "");
+
+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,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &ignore_is_ssd, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, preheat_max_bytes,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &preheat_max_bytes, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, preheat_min_bytes,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &preheat_min_bytes, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, speculative_prefetch_max,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &speculative_prefetch_max, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, speculative_prefetch_max_iosize,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &speculative_prefetch_max_iosize, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_target,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_page_free_target, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_min,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_page_free_min, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_reserved,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_page_free_reserved, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_speculative_percentage,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_page_speculative_percentage, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_speculative_q_age_ms,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_page_speculative_q_age_ms, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_max_delayed_work_limit,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_max_delayed_work_limit, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_max_batch,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_max_batch, 0, "");
+
+SYSCTL_STRING(_kern, OID_AUTO, bootsessionuuid,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &bootsessionuuid_string, sizeof(bootsessionuuid_string) , "");
+
+STATIC int
+sysctl_boottime
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ struct timeval tv;
+ boottime_timeval(&tv);
+ struct proc *p = req->p;
+
+ if (proc_is64bit(p)) {
+ 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.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_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_boottime, "S,timeval", "");
+
+STATIC int
+sysctl_symfile
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ char *str;
+ int error = get_kernel_symfile(req->p, &str);
+ if (error)
+ return (error);
+ return sysctl_io_string(req, str, 0, 0, NULL);
+}
+
+
+SYSCTL_PROC(_kern, KERN_SYMFILE, symfile,
+ CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_symfile, "A", "");
+
+#if NFSCLIENT
+STATIC int
+sysctl_netboot
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ return sysctl_io_number(req, netboot_root(), sizeof(int), NULL, NULL);
+}
+
+SYSCTL_PROC(_kern, KERN_NETBOOT, netboot,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_netboot, "I", "");
+#endif
+
+#ifdef CONFIG_IMGSRC_ACCESS
+/*
+ * Legacy--act as if only one layer of nesting is possible.
+ */
+STATIC int
+sysctl_imgsrcdev
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ vfs_context_t ctx = vfs_context_current();
+ vnode_t devvp;
+ int result;
+
+ if (!vfs_context_issuser(ctx)) {
+ return EPERM;
+ }
+
+ if (imgsrc_rootvnodes[0] == NULL) {
+ return ENOENT;
+ }
+
+ result = vnode_getwithref(imgsrc_rootvnodes[0]);
+ if (result != 0) {
+ return result;
+ }
+
+ devvp = vnode_mount(imgsrc_rootvnodes[0])->mnt_devvp;
+ result = vnode_getwithref(devvp);
+ if (result != 0) {
+ goto out;
+ }
+
+ result = sysctl_io_number(req, vnode_specrdev(devvp), sizeof(dev_t), NULL, NULL);
+
+ vnode_put(devvp);
+out:
+ vnode_put(imgsrc_rootvnodes[0]);
+ return result;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, imgsrcdev,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_imgsrcdev, "I", "");
+
+STATIC int
+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 */
+ uint32_t i;
+ vnode_t rvp, devvp;
+
+ if (imgsrc_rootvnodes[0] == NULLVP) {
+ return ENXIO;
+ }
+
+ for (i = 0; i < MAX_IMAGEBOOT_NESTING; i++) {
+ /*
+ * Go get the root vnode.
+ */
+ rvp = imgsrc_rootvnodes[i];
+ if (rvp == NULLVP) {
+ break;
+ }
+
+ error = vnode_get(rvp);
+ if (error != 0) {
+ return error;
+ }
+
+ /*
+ * For now, no getting at a non-local volume.
+ */
+ devvp = vnode_mount(rvp)->mnt_devvp;
+ if (devvp == NULL) {
+ vnode_put(rvp);
+ return EINVAL;
+ }
+
+ error = vnode_getwithref(devvp);
+ if (error != 0) {
+ vnode_put(rvp);
+ return error;
+ }
+
+ /*
+ * Fill in info.
+ */
+ info[i].ii_dev = vnode_specrdev(devvp);
+ info[i].ii_flags = 0;
+ info[i].ii_height = i;
+ bzero(info[i].ii_reserved, sizeof(info[i].ii_reserved));
+
+ vnode_put(devvp);
+ vnode_put(rvp);
+ }
+
+ return sysctl_io_opaque(req, info, i * sizeof(info[0]), NULL);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, imgsrcinfo,
+ CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_imgsrcinfo, "I", "");
+
+#endif /* CONFIG_IMGSRC_ACCESS */
+
+
+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, "");
+
+SYSCTL_QUAD(_kern_timer, OID_AUTO, deadline_tracking_bin_1,
+ CTLFLAG_RW | CTLFLAG_LOCKED,
+ &timer_deadline_tracking_bin_1, "");
+SYSCTL_QUAD(_kern_timer, OID_AUTO, deadline_tracking_bin_2,
+ CTLFLAG_RW | CTLFLAG_LOCKED,
+ &timer_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
+};
+extern uint64_t timer_sysctl_get(int);
+extern int timer_sysctl_set(int, uint64_t);
+
+STATIC int
+sysctl_timer
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int oid = (int)arg1;
+ uint64_t value = timer_sysctl_get(oid);
+ uint64_t new_value;
+ int error;
+ int changed;
+
+ error = sysctl_io_number(req, value, sizeof(value), &new_value, &changed);
+ if (changed)
+ error = timer_sysctl_set(oid, new_value);
+
+ return error;
+}
+
+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, qlen,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) QCOUNT, 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", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, dequeues,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) DEQUEUES, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, escalates,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) ESCALATES, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scans,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) SCANS, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, preempts,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) PREEMPTS, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) LATENCY, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency_min,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) LATENCY_MIN, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency_max,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) LATENCY_MAX, 0, sysctl_timer, "Q", "");
+#endif /* DEBUG */
+
+STATIC int
+sysctl_usrstack
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ return sysctl_io_number(req, (int)req->p->user_stack, sizeof(int), NULL, NULL);
+}
+
+SYSCTL_PROC(_kern, KERN_USRSTACK32, usrstack,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_usrstack, "I", "");
+
+STATIC int
+sysctl_usrstack64
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ return sysctl_io_number(req, req->p->user_stack, sizeof(req->p->user_stack), NULL, NULL);
+}
+
+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), "");
+
+STATIC int
+sysctl_coredump
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+#ifdef SECURE_KERNEL
+ (void)req;
+ return (ENOTSUP);
+#else
+ int new_value, changed;
+ int error = sysctl_io_number(req, do_coredump, sizeof(int), &new_value, &changed);
+ if (changed) {
+ if ((new_value == 0) || (new_value == 1))
+ do_coredump = new_value;
+ else
+ error = EINVAL;
+ }
+ return(error);
+#endif
+}
+
+SYSCTL_PROC(_kern, KERN_COREDUMP, coredump,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_coredump, "I", "");
+
+STATIC int
+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);
+#else
+ int new_value, changed;
+ int error = sysctl_io_number(req, sugid_coredump, sizeof(int), &new_value, &changed);
+ if (changed) {
+ if ((new_value == 0) || (new_value == 1))
+ sugid_coredump = new_value;
+ else
+ 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)
+{
+ struct proc *p = req->p;
+ int new_value, changed;
+ int error = sysctl_io_number(req, (req->p->p_lflag & P_LDELAYTERM)? 1: 0, sizeof(int), &new_value, &changed);
+ if (changed) {
+ proc_lock(p);
+ if (new_value)
+ req->p->p_lflag |= P_LDELAYTERM;
+ else
+ req->p->p_lflag &= ~P_LDELAYTERM;
+ proc_unlock(p);
+ }
+ return(error);
+}
+
+SYSCTL_PROC(_kern, KERN_PROCDELAYTERM, delayterm,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_delayterm, "I", "");
+
+
+STATIC int
+sysctl_rage_vnode
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ struct proc *p = req->p;
+ struct uthread *ut;
+ int new_value, old_value, changed;
+ int error;
+
+ ut = get_bsdthread_info(current_thread());
+
+ if (ut->uu_flag & UT_RAGE_VNODES)
+ old_value = KERN_RAGE_THREAD;
+ else if (p->p_lflag & P_LRAGE_VNODES)
+ old_value = KERN_RAGE_PROC;
+ else
+ old_value = 0;
+
+ error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
+
+ if (error == 0) {
+ switch (new_value) {
+ case KERN_RAGE_PROC:
+ proc_lock(p);
+ p->p_lflag |= P_LRAGE_VNODES;
+ proc_unlock(p);
+ break;
+ case KERN_UNRAGE_PROC:
+ proc_lock(p);
+ p->p_lflag &= ~P_LRAGE_VNODES;
+ proc_unlock(p);
+ break;
+
+ case KERN_RAGE_THREAD:
+ ut->uu_flag |= UT_RAGE_VNODES;
+ break;
+ case KERN_UNRAGE_THREAD:
+ ut = get_bsdthread_info(current_thread());
+ ut->uu_flag &= ~UT_RAGE_VNODES;
+ break;
+ }
+ }
+ return(error);
+}
+
+SYSCTL_PROC(_kern, KERN_RAGEVNODE, rage_vnode,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
+ 0, 0, sysctl_rage_vnode, "I", "");
+
+/* XXX move this interface into libproc and remove this sysctl */
+STATIC int
+sysctl_setthread_cpupercent
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, old_value;
+ int error = 0;
+ kern_return_t kret = KERN_SUCCESS;
+ uint8_t percent = 0;
+ int ms_refill = 0;
+
+ if (!req->newptr)
+ return (0);
+
+ old_value = 0;
+
+ if ((error = sysctl_io_number(req, old_value, sizeof(old_value), &new_value, NULL)) != 0)
+ return (error);
+
+ percent = new_value & 0xff; /* low 8 bytes for perent */
+ ms_refill = (new_value >> 8) & 0xffffff; /* upper 24bytes represent ms refill value */
+ if (percent > 100)
+ return (EINVAL);
+
+ /*
+ * If the caller is specifying a percentage of 0, this will unset the CPU limit, if present.
+ */
+ if ((kret = thread_set_cpulimit(THREAD_CPULIMIT_BLOCK, percent, ms_refill * (int)NSEC_PER_MSEC)) != 0)
+ return (EIO);
+
+ return (0);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, setthread_cpupercent,
+ CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_ANYBODY,
+ 0, 0, sysctl_setthread_cpupercent, "I", "set thread cpu percentage limit");
+
+
+STATIC int
+sysctl_kern_check_openevt
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ struct proc *p = req->p;
+ int new_value, old_value, changed;
+ int error;
+
+ if (p->p_flag & P_CHECKOPENEVT) {
+ old_value = KERN_OPENEVT_PROC;
+ } else {
+ old_value = 0;
+ }
+
+ error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
+
+ if (error == 0) {
+ switch (new_value) {
+ case KERN_OPENEVT_PROC:
+ OSBitOrAtomic(P_CHECKOPENEVT, &p->p_flag);
+ break;
+
+ case KERN_UNOPENEVT_PROC:
+ OSBitAndAtomic(~((uint32_t)P_CHECKOPENEVT), &p->p_flag);
+ break;
+
+ default:
+ error = EINVAL;
+ }
+ }
+ return(error);
+}
+
+SYSCTL_PROC(_kern, KERN_CHECKOPENEVT, check_openevt, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
+ 0, 0, sysctl_kern_check_openevt, "I", "set the per-process check-open-evt flag");
+
+
+
+STATIC int
+sysctl_nx
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+#ifdef SECURE_KERNEL
+ (void)req;
+ return ENOTSUP;
+#else
+ int new_value, changed;
+ int error;
+
+ error = sysctl_io_number(req, nx_enabled, sizeof(nx_enabled), &new_value, &changed);
+ if (error)
+ return error;
+
+ if (changed) {
+#if defined(__i386__) || defined(__x86_64__)
+ /*
+ * Only allow setting if NX is supported on the chip
+ */
+ if (!(cpuid_extfeatures() & CPUID_EXTFEATURE_XD))
+ return ENOTSUP;
+#endif
+ nx_enabled = new_value;
+ }
+ return(error);
+#endif /* SECURE_KERNEL */
+}
+
+
+
+SYSCTL_PROC(_kern, KERN_NX_PROTECTION, nx,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_nx, "I", "");
+
+STATIC int
+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;
+ fill_loadavg64(&averunnable, &loadinfo64);
+ return sysctl_io_opaque(req, &loadinfo64, sizeof(loadinfo64), NULL);
+ } else {
+ struct user32_loadavg loadinfo32;
+ fill_loadavg32(&averunnable, &loadinfo32);
+ return sysctl_io_opaque(req, &loadinfo32, sizeof(loadinfo32), NULL);
+ }
+}
+
+SYSCTL_PROC(_vm, VM_LOADAVG, loadavg,
+ CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_loadavg, "S,loadavg", "");
+
+/*
+ * Note: Thread safe; vm_map_lock protects in vm_toggle_entry_reuse()
+ */
+STATIC int
+sysctl_vm_toggle_address_reuse(__unused struct sysctl_oid *oidp, __unused void *arg1,
+ __unused int arg2, struct sysctl_req *req)
+{
+ int old_value=0, new_value=0, error=0;
+
+ if(vm_toggle_entry_reuse( VM_TOGGLE_GETVALUE, &old_value ))
+ return(error);
+ error = sysctl_io_number(req, old_value, sizeof(int), &new_value, NULL);
+ if (!error) {
+ return (vm_toggle_entry_reuse(new_value, NULL));
+ }
+ return(error);
+}
+
+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)
+{
+ int error;
+ uint64_t swap_total;
+ uint64_t swap_avail;
+ vm_size_t swap_pagesize;
+ boolean_t swap_encrypted;
+ struct xsw_usage xsu;
+
+ error = macx_swapinfo(&swap_total,
+ &swap_avail,
+ &swap_pagesize,
+ &swap_encrypted);
+ if (error)
+ return error;
+
+ xsu.xsu_total = swap_total;
+ xsu.xsu_avail = swap_avail;
+ xsu.xsu_used = swap_total - swap_avail;
+ xsu.xsu_pagesize = swap_pagesize;
+ xsu.xsu_encrypted = swap_encrypted;
+ return sysctl_io_opaque(req, &xsu, sizeof(xsu), NULL);
+}
+
+
+
+SYSCTL_PROC(_vm, VM_SWAPUSAGE, swapusage,
+ CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_swapusage, "S,xsw_usage", "");
+
+#if CONFIG_FREEZE
+extern void vm_page_reactivate_all_throttled(void);
+
+static int
+sysctl_freeze_enabled SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error, val = memorystatus_freeze_enabled ? 1 : 0;
+ boolean_t disabled;
+
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || !req->newptr)
+ return (error);
+
+ if (VM_CONFIG_COMPRESSOR_IS_ACTIVE) {
+ //assert(req->newptr);
+ printf("Failed attempt to set vm.freeze_enabled sysctl\n");
+ return EINVAL;
+ }
+
+ /*
+ * If freeze is being disabled, we need to move dirty pages out from the throttle to the active queue.
+ */
+ disabled = (!val && memorystatus_freeze_enabled);
+
+ memorystatus_freeze_enabled = val ? TRUE : FALSE;
+
+ if (disabled) {
+ vm_page_reactivate_all_throttled();
+ }
+
+ return (0);
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, freeze_enabled, CTLTYPE_INT|CTLFLAG_RW, &memorystatus_freeze_enabled, 0, sysctl_freeze_enabled, "I", "");
+#endif /* CONFIG_FREEZE */
+
+/* this kernel does NOT implement shared_region_make_private_np() */
+SYSCTL_INT(_kern, KERN_SHREG_PRIVATIZABLE, shreg_private,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ (int *)NULL, 0, "");
+
+STATIC int
+fetch_process_cputype(
+ proc_t cur_proc,
+ int *name,
+ u_int namelen,
+ cpu_type_t *cputype)
+{
+ proc_t p = PROC_NULL;
+ int refheld = 0;
+ cpu_type_t ret = 0;
+ int error = 0;
+
+ if (namelen == 0)
+ p = cur_proc;
+ else if (namelen == 1) {
+ p = proc_find(name[0]);
+ if (p == NULL)
+ return (EINVAL);
+ refheld = 1;
+ } else {
+ error = EINVAL;
+ goto out;
+ }
+
+ ret = cpu_type() & ~CPU_ARCH_MASK;
+ if (IS_64BIT_PROCESS(p))
+ ret |= CPU_ARCH_ABI64;
+
+ *cputype = ret;
+
+ if (refheld != 0)
+ proc_rele(p);
+out:
+ return (error);
+}
+
+STATIC int
+sysctl_sysctl_native(__unused struct sysctl_oid *oidp, void *arg1, int arg2,
+ struct sysctl_req *req)
+{
+ int error;
+ cpu_type_t proc_cputype = 0;
+ if ((error = fetch_process_cputype(req->p, (int *)arg1, arg2, &proc_cputype)) != 0)
+ return error;
+ int res = 1;
+ if ((proc_cputype & ~CPU_ARCH_MASK) != (cpu_type() & ~CPU_ARCH_MASK))
+ res = 0;
+ return SYSCTL_OUT(req, &res, sizeof(res));
+}
+SYSCTL_PROC(_sysctl, OID_AUTO, proc_native, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_sysctl_native ,"I","proc_native");
+
+STATIC int
+sysctl_sysctl_cputype(__unused struct sysctl_oid *oidp, void *arg1, int arg2,
+ struct sysctl_req *req)
+{
+ int error;
+ cpu_type_t proc_cputype = 0;
+ if ((error = fetch_process_cputype(req->p, (int *)arg1, arg2, &proc_cputype)) != 0)
+ return error;
+ return SYSCTL_OUT(req, &proc_cputype, sizeof(proc_cputype));
+}
+SYSCTL_PROC(_sysctl, OID_AUTO, proc_cputype, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_sysctl_cputype ,"I","proc_cputype");
+
+STATIC int
+sysctl_safeboot
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ return sysctl_io_number(req, boothowto & RB_SAFEBOOT ? 1 : 0, sizeof(int), NULL, NULL);
+}
+
+SYSCTL_PROC(_kern, KERN_SAFEBOOT, safeboot,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_safeboot, "I", "");
+
+STATIC int
+sysctl_singleuser
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ return sysctl_io_number(req, boothowto & RB_SINGLE ? 1 : 0, sizeof(int), NULL, NULL);
+}
+
+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
+ */
+extern boolean_t affinity_sets_enabled;
+extern int affinity_sets_mapping;
+
+SYSCTL_INT (_kern, OID_AUTO, affinity_sets_enabled,
+ CTLFLAG_RW | CTLFLAG_LOCKED, (int *) &affinity_sets_enabled, 0, "hinting enabled");
+SYSCTL_INT (_kern, OID_AUTO, affinity_sets_mapping,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &affinity_sets_mapping, 0, "mapping policy");
+
+/*
+ * Boolean indicating if KASLR is active.
+ */
+STATIC int
+sysctl_slide
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ uint32_t slide;
+
+ slide = vm_kernel_slide ? 1 : 0;
+
+ return sysctl_io_number( req, slide, sizeof(int), NULL, NULL);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, slide,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_slide, "I", "");
+
+/*
+ * Limit on total memory users can wire.
+ *
+ * vm_global_user_wire_limit - system wide limit on wired memory from all processes combined.
+ *
+ * vm_user_wire_limit - per address space limit on wired memory. This puts a cap on the process's rlimit value.
+ *
+ * These values are initialized to reasonable defaults at boot time based on the available physical memory in
+ * kmem_init().
+ *
+ * All values are in bytes.
+ */
+
+vm_map_size_t vm_global_no_user_wire_amount;
+vm_map_size_t vm_global_user_wire_limit;
+vm_map_size_t vm_user_wire_limit;
+
+/*
+ * There needs to be a more automatic/elegant way to do this
+ */
+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, "");
+
+extern int vm_map_copy_overwrite_aligned_src_not_internal;
+extern int vm_map_copy_overwrite_aligned_src_not_symmetric;
+extern int vm_map_copy_overwrite_aligned_src_large;
+SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_not_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_not_internal, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_not_symmetric, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_not_symmetric, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_large, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_large, 0, "");
+
+
+extern uint32_t vm_page_external_count;
+extern uint32_t vm_page_filecache_min;
+
+SYSCTL_INT(_vm, OID_AUTO, vm_page_external_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_external_count, 0, "");
+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;
+extern uint32_t compressor_thrashing_threshold_per_10msecs;
+extern uint32_t compressor_thrashing_min_per_10msecs;
+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;
+extern uint64_t vm_compressor_thread_runtime;
+
+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, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_sample_max_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_sample_max_in_msecs, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_thrashing_threshold_per_10msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_thrashing_threshold_per_10msecs, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_thrashing_min_per_10msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_thrashing_min_per_10msecs, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_minorcompact_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_minorcompact_threshold_divisor, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_majorcompact_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_majorcompact_threshold_divisor, 0, "");
+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, "");
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_runtime, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_thread_runtime, "");
+
+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_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, wk_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_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 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_limit;
+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_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_limit, 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 tracing of voucher contents
+ */
+extern uint32_t ipc_voucher_trace_contents;
+
+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
+ */
+SYSCTL_INT (_kern, OID_AUTO, stack_size,
+ CTLFLAG_RD | CTLFLAG_LOCKED, (int *) &kernel_stack_size, 0, "Kernel 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");
+
+/*
+ * enable back trace for port allocations
+ */
+extern int ipc_portbt;
+
+SYSCTL_INT(_kern, OID_AUTO, ipc_portbt,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &ipc_portbt, 0, "");
+
+/*
+ * Scheduler sysctls
+ */
+
+SYSCTL_STRING(_kern, OID_AUTO, sched,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ sched_string, sizeof(sched_string),
+ "Timeshare scheduler implementation");
+
+/*
+ * Only support runtime modification on embedded platforms
+ * with development config enabled
+ */
+
+
+/* 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
+
+
+/*
+ * This is set by core audio to tell tailspin (ie background tracing) how long
+ * its smallest buffer is. Background tracing can then try to make a reasonable
+ * decisions to try to avoid introducing so much latency that the buffers will
+ * underflow.
+ */
+
+int min_audio_buffer_usec;
+
+STATIC int
+sysctl_audio_buffer SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ int err = 0, value = 0, changed = 0;
+ err = sysctl_io_number(req, min_audio_buffer_usec, sizeof(int), &value, &changed);
+ if (err) goto exit;
+
+ if (changed) {
+ /* writing is protected by an entitlement */
+ if (priv_check_cred(kauth_cred_get(), PRIV_AUDIO_LATENCY, 0) != 0) {
+ err = EPERM;
+ goto exit;
+ }
+ min_audio_buffer_usec = value;
+ }
+exit:
+ return err;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, min_audio_buffer_usec, CTLFLAG_RW | CTLFLAG_ANYBODY, 0, 0, sysctl_audio_buffer, "I", "Minimum audio buffer size, in microseconds");
+
+#if DEVELOPMENT || DEBUG
+#include <sys/sysent.h>
+/* 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
projects / apple / xnu.git / blobdiff