+
+SYSCTL_PROC(_kern, OID_AUTO, osproductversion,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED,
+ osproductversion, sizeof(osproductversion),
+ sysctl_osproductversion, "A", "The ProductVersion from SystemVersion.plist");
+
+static uint64_t iossupportversion_string[48];
+
+STATIC int
+sysctl_iossupportversion(__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 || iossupportversion_string[0] != '\0') {
+ return EPERM;
+ }
+ }
+
+ return sysctl_handle_string(oidp, arg1, arg2, req);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, iossupportversion,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED,
+ iossupportversion_string, sizeof(iossupportversion_string),
+ sysctl_iossupportversion, "A", "The iOSSupportVersion 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");
+
+extern void commpage_update_dyld_flags(uint64_t);
+static uint64_t dyld_system_flags = 0;
+
+STATIC int
+sysctl_dyld_system_flags(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+{
+ /*
+ * Can only ever be set by launchd, possibly several times
+ * as dyld may change its mind after a userspace reboot.
+ */
+ if (req->newptr != 0 && req->p->p_pid != 1) {
+ return EPERM;
+ }
+
+ int res = sysctl_handle_quad(oidp, arg1, arg2, req);
+ if (req->newptr && res == 0) {
+ commpage_update_dyld_flags(osvariant_status);
+ }
+ return res;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, dyld_system_flags,
+ CTLFLAG_RW | CTLTYPE_QUAD | CTLFLAG_LOCKED | CTLFLAG_MASKED,
+ &dyld_system_flags, sizeof(dyld_system_flags),
+ sysctl_dyld_system_flags, "Q", "Opaque flags used to cache dyld system-wide configuration");
+
+#if defined(XNU_TARGET_OS_BRIDGE)
+char macosproductversion[MACOS_VERS_LEN] = { '\0' };
+
+SYSCTL_STRING(_kern, OID_AUTO, macosproductversion,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &macosproductversion[0], MACOS_VERS_LEN, "The currently running macOS ProductVersion (from SystemVersion.plist on macOS)");
+
+char macosversion[MACOS_VERS_LEN] = { '\0' };
+
+SYSCTL_STRING(_kern, OID_AUTO, macosversion,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &macosversion[0], MACOS_VERS_LEN, "The currently running macOS build version");
+#endif
+
+STATIC int
+sysctl_sysctl_bootargs
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int error;
+ char buf[BOOT_LINE_LENGTH];
+
+ strlcpy(buf, PE_boot_args(), BOOT_LINE_LENGTH);
+ error = sysctl_io_string(req, buf, BOOT_LINE_LENGTH, 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");
+
+STATIC int
+sysctl_kernelcacheuuid(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+{
+ int rval = ENOENT;
+ if (kernelcache_uuid_valid) {
+ rval = sysctl_handle_string(oidp, arg1, arg2, req);
+ }
+ return rval;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, kernelcacheuuid,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED,
+ kernelcache_uuid_string, sizeof(kernelcache_uuid_string),
+ sysctl_kernelcacheuuid, "A", "");
+
+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, "");
+SYSCTL_LONG(_kern, OID_AUTO, num_recycledvnodes,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &num_recycledvnodes, "");
+
+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) {
+ 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", "");
+
+SYSCTL_PROC(_kern, OID_AUTO, sched_enable_smt,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_KERN,
+ 0, 0, sysctl_sched_enable_smt, "I", "");
+
+extern int sched_allow_NO_SMT_threads;
+SYSCTL_INT(_kern, OID_AUTO, sched_allow_NO_SMT_threads,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_allow_NO_SMT_threads, 0, "");
+
+#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, "");
+extern int sched_avoid_cpu0;
+SYSCTL_INT(_kern, OID_AUTO, sched_avoid_cpu0,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_avoid_cpu0, 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", "");
+
+#if __AMP__
+extern int sched_amp_idle_steal;
+SYSCTL_INT(_kern, OID_AUTO, sched_amp_idle_steal,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_amp_idle_steal, 0, "");
+extern int sched_amp_spill_steal;
+SYSCTL_INT(_kern, OID_AUTO, sched_amp_spill_steal,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_amp_spill_steal, 0, "");
+extern int sched_amp_spill_count;
+SYSCTL_INT(_kern, OID_AUTO, sched_amp_spill_count,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_amp_spill_count, 0, "");
+extern int sched_amp_spill_deferred_ipi;
+SYSCTL_INT(_kern, OID_AUTO, sched_amp_spill_deferred_ipi,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_amp_spill_deferred_ipi, 0, "");
+extern int sched_amp_pcores_preempt_immediate_ipi;
+SYSCTL_INT(_kern, OID_AUTO, sched_amp_pcores_preempt_immediate_ipi,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_amp_pcores_preempt_immediate_ipi, 0, "");
+#endif /* __AMP__ */
+#endif /* __arm__ || __arm64__ */
+
+#if __arm64__
+extern int legacy_footprint_entitlement_mode;
+SYSCTL_INT(_kern, OID_AUTO, legacy_footprint_entitlement_mode,
+ CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
+ &legacy_footprint_entitlement_mode, 0, "");
+#endif /* __arm64__ */
+
+#endif /* (DEVELOPMENT || DEBUG) */
+
+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;
+ char tmpname[MAXHOSTNAMELEN] = {};
+
+ lck_mtx_lock(&domainname_lock);
+ strlcpy(tmpname, domainname, sizeof(tmpname));
+ lck_mtx_unlock(&domainname_lock);
+
+ error = sysctl_io_string(req, tmpname, sizeof(tmpname), 0, &changed);
+ if (!error && changed) {
+ lck_mtx_lock(&hostname_lock);
+ strlcpy(domainname, tmpname, sizeof(domainname));
+ lck_mtx_unlock(&hostname_lock);
+ }
+ 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;
+ char tmpname[MAXHOSTNAMELEN] = {};
+
+ lck_mtx_lock(&hostname_lock);
+ strlcpy(tmpname, hostname, sizeof(tmpname));
+ lck_mtx_unlock(&hostname_lock);
+
+ error = sysctl_io_string(req, tmpname, sizeof(tmpname), 1, &changed);
+ if (!error && changed) {
+ lck_mtx_lock(&hostname_lock);
+ strlcpy(hostname, tmpname, sizeof(hostname));
+ lck_mtx_unlock(&hostname_lock);
+ }
+ 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_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_pageout_state.vm_page_speculative_percentage, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_speculative_q_age_ms,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_pageout_state.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 CONFIG_NFS_CLIENT
+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, SCAN_LIMIT, SCAN_INTERVAL, PAUSES
+};
+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, 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", "");
+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", "");
+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) && (changed != 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 until filecoordinationd fixes a bit of inverted logic. */
+STATIC int
+sysctl_vfsnspace
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int old_value = 0, new_value, changed;
+
+ return sysctl_io_number(req, old_value, sizeof(int), &new_value,
+ &changed);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, vfsnspace,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
+ 0, 0, sysctl_vfsnspace, "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) && (changed != 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");
+
+
+#if DEVELOPMENT || DEBUG
+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(__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 */
+}
+#endif
+
+#if DEVELOPMENT || DEBUG
+SYSCTL_PROC(_kern, KERN_NX_PROTECTION, nx,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_nx, "I", "");
+#endif
+
+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", "");
+
+#ifdef CONFIG_XNUPOST
+
+extern int xnupost_export_testdata(void *outp, uint32_t size, uint32_t *lenp);
+extern uint32_t xnupost_get_estimated_testdata_size(void);
+
+extern int xnupost_reset_all_tests(void);
+
+STATIC int
+sysctl_handle_xnupost_get_tests SYSCTL_HANDLER_ARGS
+{
+ /* fixup unused arguments warnings */
+ __unused int _oa2 = arg2;
+ __unused void * _oa1 = arg1;
+ __unused struct sysctl_oid * _oidp = oidp;
+
+ int error = 0;
+ user_addr_t oldp = 0;
+ user_addr_t newp = 0;
+ uint32_t usedbytes = 0;
+
+ oldp = req->oldptr;
+ newp = req->newptr;
+
+ if (newp) {
+ return ENOTSUP;
+ }
+
+ if ((void *)oldp == NULL) {
+ /* return estimated size for second call where info can be placed */
+ req->oldidx = xnupost_get_estimated_testdata_size();
+ } else {
+ error = xnupost_export_testdata((void *)oldp, req->oldlen, &usedbytes);
+ req->oldidx = usedbytes;
+ }
+
+ return error;
+}
+
+SYSCTL_PROC(_debug,
+ OID_AUTO,
+ xnupost_get_tests,
+ CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0,
+ 0,
+ sysctl_handle_xnupost_get_tests,
+ "-",
+ "read xnupost test data in kernel");
+
+STATIC int
+sysctl_debug_xnupost_ctl SYSCTL_HANDLER_ARGS
+{
+ /* fixup unused arguments warnings */
+ __unused int _oa2 = arg2;
+ __unused void * _oa1 = arg1;
+ __unused struct sysctl_oid * _oidp = oidp;
+
+#define ARRCOUNT 4
+ /*
+ * INPUT: ACTION, PARAM1, PARAM2, PARAM3
+ * OUTPUT: RESULTCODE, ADDITIONAL DATA
+ */
+ int32_t outval[ARRCOUNT] = {0};
+ int32_t input[ARRCOUNT] = {0};
+ int32_t out_size = sizeof(outval);
+ int32_t in_size = sizeof(input);
+ int error = 0;
+
+ /* if this is NULL call to find out size, send out size info */
+ if (!req->newptr) {
+ goto out;
+ }
+
+ /* pull in provided value from userspace */
+ error = SYSCTL_IN(req, &input[0], in_size);
+ if (error) {
+ return error;
+ }
+
+ if (input[0] == XTCTL_RESET_TESTDATA) {
+ outval[0] = xnupost_reset_all_tests();
+ goto out;
+ }
+
+out:
+ error = SYSCTL_OUT(req, &outval[0], out_size);
+ return error;
+}
+
+SYSCTL_PROC(_debug,
+ OID_AUTO,
+ xnupost_testctl,
+ CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0,
+ 0,
+ sysctl_debug_xnupost_ctl,
+ "I",
+ "xnupost control for kernel testing");
+
+extern void test_oslog_handleOSLogCtl(int32_t * in, int32_t * out, int32_t arraycount);
+
+STATIC int
+sysctl_debug_test_oslog_ctl(__unused struct sysctl_oid * oidp, __unused void * arg1, __unused int arg2, struct sysctl_req * req)
+{
+#define ARRCOUNT 4
+ int32_t outval[ARRCOUNT] = {0};
+ int32_t input[ARRCOUNT] = {0};
+ int32_t size_outval = sizeof(outval);
+ int32_t size_inval = sizeof(input);
+ int32_t error;
+
+ /* if this is NULL call to find out size, send out size info */
+ if (!req->newptr) {
+ error = SYSCTL_OUT(req, &outval[0], size_outval);
+ return error;
+ }
+
+ /* pull in provided value from userspace */
+ error = SYSCTL_IN(req, &input[0], size_inval);
+ if (error) {
+ return error;
+ }
+
+ test_oslog_handleOSLogCtl(input, outval, ARRCOUNT);
+
+ error = SYSCTL_OUT(req, &outval[0], size_outval);
+
+ return error;
+}
+
+SYSCTL_PROC(_debug,
+ OID_AUTO,
+ test_OSLogCtl,
+ CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0,
+ 0,
+ sysctl_debug_test_oslog_ctl,
+ "I",
+ "testing oslog in kernel");
+
+#include <mach/task.h>
+#include <mach/semaphore.h>
+
+extern lck_grp_t * sysctl_debug_test_stackshot_owner_grp; /* used for both mutexes and rwlocks */
+extern lck_mtx_t * sysctl_debug_test_stackshot_owner_init_mtx; /* used to protect lck_*_init */
+
+/* This is a sysctl for testing collection of owner info on a lock in kernel space. A multi-threaded
+ * test from userland sets this sysctl in such a way that a thread blocks in kernel mode, and a
+ * stackshot is taken to see if the owner of the lock can be identified.
+ *
+ * We can't return to userland with a kernel lock held, so be sure to unlock before we leave.
+ * the semaphores allow us to artificially create cases where the lock is being held and the
+ * thread is hanging / taking a long time to do something. */
+
+volatile char sysctl_debug_test_stackshot_mtx_inited = 0;
+semaphore_t sysctl_debug_test_stackshot_mutex_sem;
+lck_mtx_t sysctl_debug_test_stackshot_owner_lck;
+
+#define SYSCTL_DEBUG_MTX_ACQUIRE_WAIT 1
+#define SYSCTL_DEBUG_MTX_ACQUIRE_NOWAIT 2
+#define SYSCTL_DEBUG_MTX_SIGNAL 3
+#define SYSCTL_DEBUG_MTX_TEARDOWN 4
+
+STATIC int
+sysctl_debug_test_stackshot_mutex_owner(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ long long option = -1;
+ /* if the user tries to read the sysctl, we tell them what the address of the lock is (to test against stackshot's output) */
+ long long mtx_unslid_addr = (long long)VM_KERNEL_UNSLIDE_OR_PERM(&sysctl_debug_test_stackshot_owner_lck);
+ int error = sysctl_io_number(req, mtx_unslid_addr, sizeof(long long), (void*)&option, NULL);
+
+ lck_mtx_lock(sysctl_debug_test_stackshot_owner_init_mtx);
+ if (!sysctl_debug_test_stackshot_mtx_inited) {
+ lck_mtx_init(&sysctl_debug_test_stackshot_owner_lck,
+ sysctl_debug_test_stackshot_owner_grp,
+ LCK_ATTR_NULL);
+ semaphore_create(kernel_task,
+ &sysctl_debug_test_stackshot_mutex_sem,
+ SYNC_POLICY_FIFO, 0);
+ sysctl_debug_test_stackshot_mtx_inited = 1;
+ }
+ lck_mtx_unlock(sysctl_debug_test_stackshot_owner_init_mtx);
+
+ if (!error) {
+ switch (option) {
+ case SYSCTL_DEBUG_MTX_ACQUIRE_NOWAIT:
+ lck_mtx_lock(&sysctl_debug_test_stackshot_owner_lck);
+ lck_mtx_unlock(&sysctl_debug_test_stackshot_owner_lck);
+ break;
+ case SYSCTL_DEBUG_MTX_ACQUIRE_WAIT:
+ lck_mtx_lock(&sysctl_debug_test_stackshot_owner_lck);
+ semaphore_wait(sysctl_debug_test_stackshot_mutex_sem);
+ lck_mtx_unlock(&sysctl_debug_test_stackshot_owner_lck);
+ break;
+ case SYSCTL_DEBUG_MTX_SIGNAL:
+ semaphore_signal(sysctl_debug_test_stackshot_mutex_sem);
+ break;
+ case SYSCTL_DEBUG_MTX_TEARDOWN:
+ lck_mtx_lock(sysctl_debug_test_stackshot_owner_init_mtx);
+
+ lck_mtx_destroy(&sysctl_debug_test_stackshot_owner_lck,
+ sysctl_debug_test_stackshot_owner_grp);
+ semaphore_destroy(kernel_task,
+ sysctl_debug_test_stackshot_mutex_sem);
+ sysctl_debug_test_stackshot_mtx_inited = 0;
+
+ lck_mtx_unlock(sysctl_debug_test_stackshot_owner_init_mtx);
+ break;
+ case -1: /* user just wanted to read the value, so do nothing */
+ break;
+ default:
+ error = EINVAL;
+ break;
+ }
+ }
+ return error;
+}
+
+/* we can't return to userland with a kernel rwlock held, so be sure to unlock before we leave.
+ * the semaphores allow us to artificially create cases where the lock is being held and the
+ * thread is hanging / taking a long time to do something. */
+
+SYSCTL_PROC(_debug,
+ OID_AUTO,
+ test_MutexOwnerCtl,
+ CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0,
+ 0,
+ sysctl_debug_test_stackshot_mutex_owner,
+ "-",
+ "Testing mutex owner in kernel");
+
+volatile char sysctl_debug_test_stackshot_rwlck_inited = 0;
+lck_rw_t sysctl_debug_test_stackshot_owner_rwlck;
+semaphore_t sysctl_debug_test_stackshot_rwlck_sem;
+
+#define SYSCTL_DEBUG_KRWLCK_RACQUIRE_NOWAIT 1
+#define SYSCTL_DEBUG_KRWLCK_RACQUIRE_WAIT 2
+#define SYSCTL_DEBUG_KRWLCK_WACQUIRE_NOWAIT 3
+#define SYSCTL_DEBUG_KRWLCK_WACQUIRE_WAIT 4
+#define SYSCTL_DEBUG_KRWLCK_SIGNAL 5
+#define SYSCTL_DEBUG_KRWLCK_TEARDOWN 6
+
+STATIC int
+sysctl_debug_test_stackshot_rwlck_owner(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ long long option = -1;
+ /* if the user tries to read the sysctl, we tell them what the address of the lock is
+ * (to test against stackshot's output) */
+ long long rwlck_unslid_addr = (long long)VM_KERNEL_UNSLIDE_OR_PERM(&sysctl_debug_test_stackshot_owner_rwlck);
+ int error = sysctl_io_number(req, rwlck_unslid_addr, sizeof(long long), (void*)&option, NULL);
+
+ lck_mtx_lock(sysctl_debug_test_stackshot_owner_init_mtx);
+ if (!sysctl_debug_test_stackshot_rwlck_inited) {
+ lck_rw_init(&sysctl_debug_test_stackshot_owner_rwlck,
+ sysctl_debug_test_stackshot_owner_grp,
+ LCK_ATTR_NULL);
+ semaphore_create(kernel_task,
+ &sysctl_debug_test_stackshot_rwlck_sem,
+ SYNC_POLICY_FIFO,
+ 0);
+ sysctl_debug_test_stackshot_rwlck_inited = 1;
+ }
+ lck_mtx_unlock(sysctl_debug_test_stackshot_owner_init_mtx);
+
+ if (!error) {
+ switch (option) {
+ case SYSCTL_DEBUG_KRWLCK_RACQUIRE_NOWAIT:
+ lck_rw_lock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_SHARED);
+ lck_rw_unlock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_SHARED);
+ break;
+ case SYSCTL_DEBUG_KRWLCK_RACQUIRE_WAIT:
+ lck_rw_lock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_SHARED);
+ semaphore_wait(sysctl_debug_test_stackshot_rwlck_sem);
+ lck_rw_unlock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_SHARED);
+ break;
+ case SYSCTL_DEBUG_KRWLCK_WACQUIRE_NOWAIT:
+ lck_rw_lock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_EXCLUSIVE);
+ lck_rw_unlock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_EXCLUSIVE);
+ break;
+ case SYSCTL_DEBUG_KRWLCK_WACQUIRE_WAIT:
+ lck_rw_lock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_EXCLUSIVE);
+ semaphore_wait(sysctl_debug_test_stackshot_rwlck_sem);
+ lck_rw_unlock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_EXCLUSIVE);
+ break;
+ case SYSCTL_DEBUG_KRWLCK_SIGNAL:
+ semaphore_signal(sysctl_debug_test_stackshot_rwlck_sem);
+ break;
+ case SYSCTL_DEBUG_KRWLCK_TEARDOWN:
+ lck_mtx_lock(sysctl_debug_test_stackshot_owner_init_mtx);
+
+ lck_rw_destroy(&sysctl_debug_test_stackshot_owner_rwlck,
+ sysctl_debug_test_stackshot_owner_grp);
+ semaphore_destroy(kernel_task,
+ sysctl_debug_test_stackshot_rwlck_sem);
+ sysctl_debug_test_stackshot_rwlck_inited = 0;
+
+ lck_mtx_unlock(sysctl_debug_test_stackshot_owner_init_mtx);
+ break;
+ case -1: /* user just wanted to read the value, so do nothing */
+ break;
+ default:
+ error = EINVAL;
+ break;
+ }
+ }
+ return error;
+}
+
+
+SYSCTL_PROC(_debug,
+ OID_AUTO,
+ test_RWLockOwnerCtl,
+ CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0,
+ 0,
+ sysctl_debug_test_stackshot_rwlck_owner,
+ "-",
+ "Testing rwlock owner in kernel");
+#endif /* !CONFIG_XNUPOST */
+
+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);
+extern void memorystatus_disable_freeze(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_FREEZER_SWAP_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();
+ memorystatus_disable_freeze();
+ }
+
+ return 0;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, freeze_enabled, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY, &memorystatus_freeze_enabled, 0, sysctl_freeze_enabled, "I", "");
+#endif /* CONFIG_FREEZE */
+
+#if DEVELOPMENT || DEBUG
+extern int vm_num_swap_files_config;
+extern int vm_num_swap_files;
+extern lck_mtx_t vm_swap_data_lock;
+#define VM_MAX_SWAP_FILE_NUM 100
+
+static int
+sysctl_vm_config_num_swap_files SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error = 0, val = vm_num_swap_files_config;
+
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || !req->newptr) {
+ goto out;
+ }
+
+ if (!VM_CONFIG_SWAP_IS_ACTIVE && !VM_CONFIG_FREEZER_SWAP_IS_ACTIVE) {
+ printf("Swap is disabled\n");
+ error = EINVAL;
+ goto out;
+ }
+
+ lck_mtx_lock(&vm_swap_data_lock);
+
+ if (val < vm_num_swap_files) {
+ printf("Cannot configure fewer swap files than already exist.\n");
+ error = EINVAL;
+ lck_mtx_unlock(&vm_swap_data_lock);
+ goto out;
+ }
+
+ if (val > VM_MAX_SWAP_FILE_NUM) {
+ printf("Capping number of swap files to upper bound.\n");
+ val = VM_MAX_SWAP_FILE_NUM;
+ }
+
+ vm_num_swap_files_config = val;
+ lck_mtx_unlock(&vm_swap_data_lock);
+out:
+
+ return 0;
+}
+
+SYSCTL_PROC(_debug, OID_AUTO, num_swap_files_configured, CTLFLAG_ANYBODY | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_vm_config_num_swap_files, "I", "");
+#endif /* DEVELOPMENT || DEBUG */
+
+/* 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_per_task_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_user_wire_limit;
+vm_map_size_t vm_per_task_user_wire_limit;
+extern uint64_t max_mem;
+
+/*
+ * We used to have a global in the kernel called vm_global_no_user_wire_limit which was the inverse
+ * of vm_global_user_wire_limit. But maintaining both of those is silly, and vm_global_user_wire_limit is the
+ * real limit.
+ * This function is for backwards compatibility with userspace
+ * since we exposed the old global via a sysctl.
+ */
+STATIC int
+sysctl_global_no_user_wire_amount(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ vm_map_size_t old_value;
+ vm_map_size_t new_value;
+ int changed;
+ int error;
+
+ old_value = max_mem - vm_global_user_wire_limit;
+ error = sysctl_io_number(req, old_value, sizeof(vm_map_size_t), &new_value, &changed);
+ if (changed) {
+ if ((uint64_t)new_value > max_mem) {
+ error = EINVAL;
+ } else {
+ vm_global_user_wire_limit = max_mem - new_value;
+ }
+ }
+ return error;
+}
+/*
+ * There needs to be a more automatic/elegant way to do this
+ */
+#if defined(__ARM__)
+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_per_task_user_wire_limit, 0, "");
+SYSCTL_PROC(_vm, OID_AUTO, global_no_user_wire_amount, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, &sysctl_global_no_user_wire_amount, "I", "");
+#else
+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_per_task_user_wire_limit, "");
+SYSCTL_PROC(_vm, OID_AUTO, global_no_user_wire_amount, CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, &sysctl_global_no_user_wire_amount, "Q", "");
+#endif
+
+#if DEVELOPMENT || DEBUG
+/* These sysyctls are used to test the wired limit. */
+extern unsigned int vm_page_wire_count;
+extern uint32_t vm_lopage_free_count;
+SYSCTL_INT(_vm, OID_AUTO, page_wire_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_wire_count, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, lopage_free_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_lopage_free_count, 0, "");
+#endif /* DEVELOPMENT */
+
+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;
+
+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_RD | CTLFLAG_LOCKED, &vm_pageout_state.vm_page_filecache_min, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_page_xpmapped_min, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_state.vm_page_xpmapped_min, 0, "");
+
+#if DEVELOPMENT || DEBUG
+SYSCTL_INT(_vm, OID_AUTO, vm_page_filecache_min_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_state.vm_page_filecache_min_divisor, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_page_xpmapped_min_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_state.vm_page_xpmapped_min_divisor, 0, "");
+#endif
+
+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_time_thread;
+
+#if DEVELOPMENT || DEBUG
+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_minorcompact_threshold_divisor_overridden;
+extern uint32_t vm_compressor_majorcompact_threshold_divisor_overridden;
+extern uint32_t vm_compressor_unthrottle_threshold_divisor_overridden;
+extern uint32_t vm_compressor_catchup_threshold_divisor_overridden;
+
+extern vmct_stats_t vmct_stats;
+
+
+STATIC int
+sysctl_minorcompact_threshold_divisor(__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, vm_compressor_minorcompact_threshold_divisor, sizeof(int), &new_value, &changed);
+
+ if (changed) {
+ vm_compressor_minorcompact_threshold_divisor = new_value;
+ vm_compressor_minorcompact_threshold_divisor_overridden = 1;
+ }
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, compressor_minorcompact_threshold_divisor,
+ CTLTYPE_INT | CTLFLAG_LOCKED | CTLFLAG_RW,
+ 0, 0, sysctl_minorcompact_threshold_divisor, "I", "");
+
+
+STATIC int
+sysctl_majorcompact_threshold_divisor(__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, vm_compressor_majorcompact_threshold_divisor, sizeof(int), &new_value, &changed);
+
+ if (changed) {
+ vm_compressor_majorcompact_threshold_divisor = new_value;
+ vm_compressor_majorcompact_threshold_divisor_overridden = 1;
+ }
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, compressor_majorcompact_threshold_divisor,
+ CTLTYPE_INT | CTLFLAG_LOCKED | CTLFLAG_RW,
+ 0, 0, sysctl_majorcompact_threshold_divisor, "I", "");
+
+
+STATIC int
+sysctl_unthrottle_threshold_divisor(__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, vm_compressor_unthrottle_threshold_divisor, sizeof(int), &new_value, &changed);
+
+ if (changed) {
+ vm_compressor_unthrottle_threshold_divisor = new_value;
+ vm_compressor_unthrottle_threshold_divisor_overridden = 1;
+ }
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, compressor_unthrottle_threshold_divisor,
+ CTLTYPE_INT | CTLFLAG_LOCKED | CTLFLAG_RW,
+ 0, 0, sysctl_unthrottle_threshold_divisor, "I", "");
+
+
+STATIC int
+sysctl_catchup_threshold_divisor(__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, vm_compressor_catchup_threshold_divisor, sizeof(int), &new_value, &changed);
+
+ if (changed) {
+ vm_compressor_catchup_threshold_divisor = new_value;
+ vm_compressor_catchup_threshold_divisor_overridden = 1;
+ }
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, compressor_catchup_threshold_divisor,
+ CTLTYPE_INT | CTLFLAG_LOCKED | CTLFLAG_RW,
+ 0, 0, sysctl_catchup_threshold_divisor, "I", "");
+#endif
+
+
+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, "");
+
+extern int min_csegs_per_major_compaction;
+SYSCTL_INT(_vm, OID_AUTO, compressor_min_csegs_per_major_compaction, CTLFLAG_RW | CTLFLAG_LOCKED, &min_csegs_per_major_compaction, 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_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_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_vminfo.vm_pageout_considered_bq_internal, "");
+SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_considered_bq_external, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_vminfo.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 /* CONFIG_BACKGROUND_QUEUE */
+
+extern void vm_update_darkwake_mode(boolean_t);
+extern boolean_t vm_darkwake_mode;
+
+STATIC int
+sysctl_toggle_darkwake_mode(__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, vm_darkwake_mode, sizeof(int), &new_value, &changed);
+
+ if (!error && changed) {
+ if (new_value != 0 && new_value != 1) {
+ printf("Error: Invalid value passed to darkwake sysctl. Acceptable: 0 or 1.\n");
+ error = EINVAL;
+ } else {
+ vm_update_darkwake_mode((boolean_t) new_value);
+ }
+ }
+
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, darkwake_mode,
+ CTLTYPE_INT | CTLFLAG_LOCKED | CTLFLAG_RW,
+ 0, 0, sysctl_toggle_darkwake_mode, "I", "");
+
+#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_nops;
+
+SYSCTL_INT(_vm, OID_AUTO, vm_grab_anon_overrides, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_debug.vm_grab_anon_overrides, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_grab_anon_nops, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_debug.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");
+
+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
+ */
+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");
+
+#if CONFIG_QUIESCE_COUNTER
+static int
+sysctl_cpu_quiescent_counter_interval SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+
+ uint32_t local_min_interval_us = cpu_quiescent_counter_get_min_interval_us();
+
+ int error = sysctl_handle_int(oidp, &local_min_interval_us, 0, req);
+ if (error || !req->newptr) {
+ return error;
+ }
+
+ cpu_quiescent_counter_set_min_interval_us(local_min_interval_us);
+
+ return 0;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, cpu_checkin_interval,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0,
+ sysctl_cpu_quiescent_counter_interval, "I",
+ "Quiescent CPU checkin interval (microseconds)");
+#endif /* CONFIG_QUIESCE_COUNTER */
+
+
+/*
+ * 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 <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
+
+
+#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");
+
+extern int exc_resource_threads_enabled;
+
+SYSCTL_INT(_kern, OID_AUTO, exc_resource_threads_enabled, CTLFLAG_RD | CTLFLAG_LOCKED, &exc_resource_threads_enabled, 0, "exc_resource thread limit enabled");
+
+
+#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], FALSE);
+
+ 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");
+
+
+#if DEVELOPMENT || DEBUG
+
+extern void do_cseg_wedge_thread(void);
+extern void do_cseg_unwedge_thread(void);
+
+static int
+cseg_wedge_thread SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+
+ do_cseg_wedge_thread();
+ return 0;
+}
+SYSCTL_PROC(_kern, OID_AUTO, cseg_wedge_thread, CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_MASKED, 0, 0, cseg_wedge_thread, "I", "wedge c_seg thread");
+
+static int
+cseg_unwedge_thread SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+
+ do_cseg_unwedge_thread();
+ return 0;
+}
+SYSCTL_PROC(_kern, OID_AUTO, cseg_unwedge_thread, CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_MASKED, 0, 0, cseg_unwedge_thread, "I", "unstuck c_seg thread");
+
+static atomic_int wedge_thread_should_wake = 0;
+
+static int
+unwedge_thread SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+
+ atomic_store(&wedge_thread_should_wake, 1);
+ return 0;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, unwedge_thread, CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED, 0, 0, unwedge_thread, "I", "unwedge the thread wedged by kern.wedge_thread");
+
+SYSCTL_LONG(_kern, OID_AUTO, phys_carveout_pa, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &phys_carveout_pa,
+ "base physical address of the phys_carveout_mb boot-arg region");
+SYSCTL_LONG(_kern, OID_AUTO, phys_carveout_size, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &phys_carveout_size,
+ "size in bytes of the phys_carveout_mb boot-arg region");
+
+static int
+wedge_thread SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+
+ uint64_t interval = 1;
+ nanoseconds_to_absolutetime(1000 * 1000 * 50, &interval);
+
+ atomic_store(&wedge_thread_should_wake, 0);
+ while (!atomic_load(&wedge_thread_should_wake)) {
+ tsleep1(NULL, 0, "wedge_thread", mach_absolute_time() + interval, NULL);
+ }
+
+ return 0;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, wedge_thread, CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED, 0, 0, wedge_thread, "I", "wedge this thread so it cannot be cleaned up");
+
+extern unsigned long
+total_corpses_count(void);
+
+static int
+sysctl_total_corpses_count SYSCTL_HANDLER_ARGS;
+
+static int
+sysctl_total_corpses_count SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ int corpse_count = total_corpses_count();
+ return sysctl_io_opaque(req, &corpse_count, sizeof(int), NULL);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, total_corpses_count, CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_LOCKED, 0, 0, sysctl_total_corpses_count, "I", "total corpses on the system");
+
+static int
+sysctl_turnstile_test_prim_lock SYSCTL_HANDLER_ARGS;
+static int
+sysctl_turnstile_test_prim_unlock SYSCTL_HANDLER_ARGS;
+int
+tstile_test_prim_lock(boolean_t use_hashtable);
+int
+tstile_test_prim_unlock(boolean_t use_hashtable);
+
+static int
+sysctl_turnstile_test_prim_lock SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+ switch (val) {
+ case SYSCTL_TURNSTILE_TEST_USER_DEFAULT:
+ case SYSCTL_TURNSTILE_TEST_USER_HASHTABLE:
+ case SYSCTL_TURNSTILE_TEST_KERNEL_DEFAULT:
+ case SYSCTL_TURNSTILE_TEST_KERNEL_HASHTABLE:
+ return tstile_test_prim_lock(val);
+ default:
+ return error;
+ }
+}
+
+static int
+sysctl_turnstile_test_prim_unlock SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+ switch (val) {
+ case SYSCTL_TURNSTILE_TEST_USER_DEFAULT:
+ case SYSCTL_TURNSTILE_TEST_USER_HASHTABLE:
+ case SYSCTL_TURNSTILE_TEST_KERNEL_DEFAULT:
+ case SYSCTL_TURNSTILE_TEST_KERNEL_HASHTABLE:
+ return tstile_test_prim_unlock(val);
+ default:
+ return error;
+ }
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, turnstiles_test_lock, CTLFLAG_WR | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_turnstile_test_prim_lock, "I", "turnstiles test lock");
+
+SYSCTL_PROC(_kern, OID_AUTO, turnstiles_test_unlock, CTLFLAG_WR | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_turnstile_test_prim_unlock, "I", "turnstiles test unlock");
+
+int
+turnstile_get_boost_stats_sysctl(void *req);
+int
+turnstile_get_unboost_stats_sysctl(void *req);
+static int
+sysctl_turnstile_boost_stats SYSCTL_HANDLER_ARGS;
+static int
+sysctl_turnstile_unboost_stats SYSCTL_HANDLER_ARGS;
+extern uint64_t thread_block_on_turnstile_count;
+extern uint64_t thread_block_on_regular_waitq_count;
+
+static int
+sysctl_turnstile_boost_stats SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2, oidp)
+ return turnstile_get_boost_stats_sysctl(req);
+}
+
+static int
+sysctl_turnstile_unboost_stats SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2, oidp)
+ return turnstile_get_unboost_stats_sysctl(req);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, turnstile_boost_stats, CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED | CTLTYPE_STRUCT,
+ 0, 0, sysctl_turnstile_boost_stats, "S", "turnstiles boost stats");
+SYSCTL_PROC(_kern, OID_AUTO, turnstile_unboost_stats, CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED | CTLTYPE_STRUCT,
+ 0, 0, sysctl_turnstile_unboost_stats, "S", "turnstiles unboost stats");
+SYSCTL_QUAD(_kern, OID_AUTO, thread_block_count_on_turnstile,
+ CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &thread_block_on_turnstile_count, "thread blocked on turnstile count");
+SYSCTL_QUAD(_kern, OID_AUTO, thread_block_count_on_reg_waitq,
+ CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &thread_block_on_regular_waitq_count, "thread blocked on regular waitq count");
+
+static int
+sysctl_erase_all_test_mtx_stats SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+
+ if (val == 1) {
+ lck_mtx_test_init();
+ erase_all_test_mtx_stats();
+ }
+
+ return 0;
+}
+
+static int
+sysctl_get_test_mtx_stats SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ char* buffer;
+ int size, buffer_size, error;
+
+ buffer_size = 1000;
+ buffer = kalloc(buffer_size);
+ if (!buffer) {
+ panic("Impossible to allocate memory for %s\n", __func__);
+ }
+
+ lck_mtx_test_init();
+
+ size = get_test_mtx_stats_string(buffer, buffer_size);
+
+ error = sysctl_io_string(req, buffer, size, 0, NULL);
+
+ kfree(buffer, buffer_size);
+
+ return error;
+}
+
+static int
+sysctl_test_mtx_uncontended SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ char* buffer;
+ int buffer_size, offset, error, iter;
+ char input_val[40];
+
+ if (!req->newptr) {
+ return 0;
+ }
+
+ if (!req->oldptr) {
+ return EINVAL;
+ }
+
+ if (req->newlen >= sizeof(input_val)) {
+ return EINVAL;
+ }
+
+ error = SYSCTL_IN(req, input_val, req->newlen);
+ if (error) {
+ return error;
+ }
+ input_val[req->newlen] = '\0';
+
+ iter = 0;
+ error = sscanf(input_val, "%d", &iter);
+ if (error != 1) {
+ printf("%s invalid input\n", __func__);
+ return EINVAL;
+ }
+
+ if (iter <= 0) {
+ printf("%s requested %d iterations, not starting the test\n", __func__, iter);
+ return EINVAL;
+ }
+
+ lck_mtx_test_init();
+
+ buffer_size = 2000;
+ offset = 0;
+ buffer = kalloc(buffer_size);
+ if (!buffer) {
+ panic("Impossible to allocate memory for %s\n", __func__);
+ }
+ memset(buffer, 0, buffer_size);
+
+ printf("%s starting uncontended mutex test with %d iterations\n", __func__, iter);
+
+ offset = scnprintf(buffer, buffer_size, "STATS INNER LOOP");
+ offset += lck_mtx_test_mtx_uncontended(iter, &buffer[offset], buffer_size - offset);
+
+ offset += scnprintf(&buffer[offset], buffer_size - offset, "\nSTATS OUTER LOOP");
+ offset += lck_mtx_test_mtx_uncontended_loop_time(iter, &buffer[offset], buffer_size - offset);
+
+ error = SYSCTL_OUT(req, buffer, offset);
+
+ kfree(buffer, buffer_size);
+ return error;
+}
+
+static int
+sysctl_test_mtx_contended SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ char* buffer;
+ int buffer_size, offset, error, iter;
+ char input_val[40];
+
+ if (!req->newptr) {
+ return 0;
+ }
+
+ if (!req->oldptr) {
+ return EINVAL;
+ }
+
+ if (req->newlen >= sizeof(input_val)) {
+ return EINVAL;
+ }
+
+ error = SYSCTL_IN(req, input_val, req->newlen);
+ if (error) {
+ return error;
+ }
+ input_val[req->newlen] = '\0';
+
+ iter = 0;
+ error = sscanf(input_val, "%d", &iter);
+ if (error != 1) {
+ printf("%s invalid input\n", __func__);
+ return EINVAL;
+ }
+
+ if (iter <= 0) {
+ printf("%s requested %d iterations, not starting the test\n", __func__, iter);
+ return EINVAL;
+ }
+
+ lck_mtx_test_init();
+
+ erase_all_test_mtx_stats();
+
+ buffer_size = 2000;
+ offset = 0;
+ buffer = kalloc(buffer_size);
+ if (!buffer) {
+ panic("Impossible to allocate memory for %s\n", __func__);
+ }
+ memset(buffer, 0, buffer_size);
+
+ printf("%s starting contended mutex test with %d iterations FULL_CONTENDED\n", __func__, iter);
+
+ offset = scnprintf(buffer, buffer_size, "STATS INNER LOOP");
+ offset += lck_mtx_test_mtx_contended(iter, &buffer[offset], buffer_size - offset, FULL_CONTENDED);
+
+ printf("%s starting contended mutex loop test with %d iterations FULL_CONTENDED\n", __func__, iter);
+
+ offset += scnprintf(&buffer[offset], buffer_size - offset, "\nSTATS OUTER LOOP");
+ offset += lck_mtx_test_mtx_contended_loop_time(iter, &buffer[offset], buffer_size - offset, FULL_CONTENDED);
+
+ printf("%s starting contended mutex test with %d iterations HALF_CONTENDED\n", __func__, iter);
+
+ offset += scnprintf(&buffer[offset], buffer_size - offset, "STATS INNER LOOP");
+ offset += lck_mtx_test_mtx_contended(iter, &buffer[offset], buffer_size - offset, HALF_CONTENDED);
+
+ printf("%s starting contended mutex loop test with %d iterations HALF_CONTENDED\n", __func__, iter);
+
+ offset += scnprintf(&buffer[offset], buffer_size - offset, "\nSTATS OUTER LOOP");
+ offset += lck_mtx_test_mtx_contended_loop_time(iter, &buffer[offset], buffer_size - offset, HALF_CONTENDED);
+
+ error = SYSCTL_OUT(req, buffer, offset);
+
+ printf("\n%s\n", buffer);
+ kfree(buffer, buffer_size);
+
+ return error;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, erase_all_test_mtx_stats, CTLFLAG_WR | CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_erase_all_test_mtx_stats, "I", "erase test_mtx statistics");
+
+SYSCTL_PROC(_kern, OID_AUTO, get_test_mtx_stats, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_get_test_mtx_stats, "A", "get test_mtx statistics");
+
+SYSCTL_PROC(_kern, OID_AUTO, test_mtx_contended, CTLTYPE_STRING | CTLFLAG_MASKED | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_test_mtx_contended, "A", "get statistics for contended mtx test");
+
+SYSCTL_PROC(_kern, OID_AUTO, test_mtx_uncontended, CTLTYPE_STRING | CTLFLAG_MASKED | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_test_mtx_uncontended, "A", "get statistics for uncontended mtx test");
+
+extern uint64_t MutexSpin;
+
+SYSCTL_QUAD(_kern, OID_AUTO, mutex_spin_abs, CTLFLAG_RW, &MutexSpin,
+ "Spin time in abs for acquiring a kernel mutex");
+
+extern uint64_t low_MutexSpin;
+extern int64_t high_MutexSpin;
+extern unsigned int real_ncpus;
+
+SYSCTL_QUAD(_kern, OID_AUTO, low_mutex_spin_abs, CTLFLAG_RW, &low_MutexSpin,
+ "Low spin threshold in abs for acquiring a kernel mutex");
+
+static int
+sysctl_high_mutex_spin_ns SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ int error;
+ int64_t val = 0;
+ int64_t res;
+
+ /* Check if the user is writing to high_MutexSpin, or just reading it */
+ if (req->newptr) {
+ error = SYSCTL_IN(req, &val, sizeof(val));
+ if (error || (val < 0 && val != -1)) {
+ return error;
+ }
+ high_MutexSpin = val;
+ }
+
+ if (high_MutexSpin >= 0) {
+ res = high_MutexSpin;
+ } else {
+ res = low_MutexSpin * real_ncpus;
+ }
+ return SYSCTL_OUT(req, &res, sizeof(res));
+}
+SYSCTL_PROC(_kern, OID_AUTO, high_mutex_spin_abs, CTLFLAG_RW | CTLTYPE_QUAD, 0, 0, sysctl_high_mutex_spin_ns, "I",
+ "High spin threshold in abs for acquiring a kernel mutex");
+
+#if defined (__x86_64__)
+
+semaphore_t sysctl_test_panic_with_thread_sem;
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Winfinite-recursion" /* rdar://38801963 */
+__attribute__((noreturn))
+static void
+panic_thread_test_child_spin(void * arg, wait_result_t wres)
+{
+ static int panic_thread_recurse_count = 5;
+
+ if (panic_thread_recurse_count > 0) {
+ panic_thread_recurse_count--;
+ panic_thread_test_child_spin(arg, wres);
+ }
+
+ semaphore_signal(sysctl_test_panic_with_thread_sem);
+ while (1) {
+ ;
+ }
+}
+#pragma clang diagnostic pop
+
+static void
+panic_thread_test_child_park(void * arg __unused, wait_result_t wres __unused)
+{
+ int event;
+
+ assert_wait(&event, THREAD_UNINT);
+ semaphore_signal(sysctl_test_panic_with_thread_sem);
+ thread_block(panic_thread_test_child_park);
+}
+
+static int
+sysctl_test_panic_with_thread SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int rval = 0;
+ char str[16] = { '\0' };
+ thread_t child_thread = THREAD_NULL;
+
+ rval = sysctl_handle_string(oidp, str, sizeof(str), req);
+ if (rval != 0 || !req->newptr) {
+ return EINVAL;
+ }
+
+ semaphore_create(kernel_task, &sysctl_test_panic_with_thread_sem, SYNC_POLICY_FIFO, 0);
+
+ /* Create thread to spin or park in continuation */
+ if (strncmp("spin", str, strlen("spin")) == 0) {
+ if (kernel_thread_start(panic_thread_test_child_spin, NULL, &child_thread) != KERN_SUCCESS) {
+ semaphore_destroy(kernel_task, sysctl_test_panic_with_thread_sem);
+ return EBUSY;
+ }
+ } else if (strncmp("continuation", str, strlen("continuation")) == 0) {
+ if (kernel_thread_start(panic_thread_test_child_park, NULL, &child_thread) != KERN_SUCCESS) {
+ semaphore_destroy(kernel_task, sysctl_test_panic_with_thread_sem);
+ return EBUSY;
+ }
+ } else {
+ semaphore_destroy(kernel_task, sysctl_test_panic_with_thread_sem);
+ return EINVAL;
+ }
+
+ semaphore_wait(sysctl_test_panic_with_thread_sem);
+
+ panic_with_thread_context(0, NULL, 0, child_thread, "testing panic_with_thread_context for thread %p", child_thread);
+
+ /* Not reached */
+ return EINVAL;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, test_panic_with_thread, CTLFLAG_MASKED | CTLFLAG_KERN | CTLFLAG_LOCKED | CTLFLAG_WR | CTLTYPE_STRING,
+ 0, 0, sysctl_test_panic_with_thread, "A", "test panic flow for backtracing a different thread");
+#endif /* defined (__x86_64__) */
+
+#endif /* DEVELOPMENT || DEBUG */
+
+static int
+sysctl_get_owned_vmobjects SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+
+ /* validate */
+ if (req->newlen != sizeof(mach_port_name_t) || req->newptr == USER_ADDR_NULL ||
+ req->oldidx != 0 || req->newidx != 0 || req->p == NULL) {
+ return EINVAL;
+ }
+
+ int error;
+ mach_port_name_t task_port_name;
+ task_t task;
+ size_t buffer_size = (req->oldptr != USER_ADDR_NULL) ? req->oldlen : 0;
+ vmobject_list_output_t buffer;
+ size_t output_size;
+
+ if (buffer_size) {
+ const size_t min_size = sizeof(vm_object_query_data_t) + sizeof(int64_t);
+
+ if (buffer_size < min_size || buffer_size > INT_MAX) {
+ return EINVAL;
+ }
+
+ buffer = kalloc(buffer_size);
+
+ if (!buffer) {
+ error = ENOMEM;
+ goto sysctl_get_vmobject_list_exit;
+ }
+ } else {
+ buffer = NULL;
+ }
+
+ /* we have a "newptr" (for write) we get a task port name from the caller. */
+ error = SYSCTL_IN(req, &task_port_name, sizeof(mach_port_name_t));
+
+ if (error != 0) {
+ goto sysctl_get_vmobject_list_exit;
+ }
+
+ task = port_name_to_task(task_port_name);
+ if (task == TASK_NULL) {
+ error = ESRCH;
+ goto sysctl_get_vmobject_list_exit;
+ }
+
+ /* copy the vmobjects and vmobject data out of the task */
+ if (buffer_size == 0) {
+ int64_t __size;
+ task_copy_vmobjects(task, NULL, 0, &__size);
+ output_size = (__size > 0) ? __size * sizeof(vm_object_query_data_t) + sizeof(int64_t) : 0;
+ } else {
+ task_copy_vmobjects(task, &buffer->data[0], buffer_size - sizeof(int64_t), &buffer->entries);
+ output_size = buffer->entries * sizeof(vm_object_query_data_t) + sizeof(int64_t);
+ }
+
+ task_deallocate(task);
+
+ error = SYSCTL_OUT(req, (char*) buffer, output_size);
+
+sysctl_get_vmobject_list_exit:
+ if (buffer) {
+ kfree(buffer, buffer_size);
+ }
+
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, get_owned_vmobjects, CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_WR | CTLFLAG_MASKED | CTLFLAG_KERN | CTLFLAG_LOCKED | CTLFLAG_ANYBODY,
+ 0, 0, sysctl_get_owned_vmobjects, "A", "get owned vmobjects in task");
projects / apple / xnu.git / blobdiff