/*
- * Copyright (c) 2000-2010 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2020 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
-/*
+/*
* Mach Operating System
* Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
* All Rights Reserved.
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
- *
+ *
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
+ *
* Carnegie Mellon requests users of this software to return to
- *
+ *
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
- *
+ *
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
*/
#include <debug.h>
-#include <xpr_debug.h>
#include <mach_kdp.h>
#include <mach/boolean.h>
#include <kern/clock.h>
#include <kern/coalition.h>
#include <kern/cpu_number.h>
+#include <kern/cpu_quiesce.h>
#include <kern/ledger.h>
#include <kern/machine.h>
#include <kern/processor.h>
+#include <kern/restartable.h>
#include <kern/sched_prim.h>
+#include <kern/turnstile.h>
#if CONFIG_SCHED_SFI
#include <kern/sfi.h>
#endif
#if CONFIG_TELEMETRY
#include <kern/telemetry.h>
#endif
-#include <kern/xpr.h>
#include <kern/zalloc.h>
#include <kern/locks.h>
#include <kern/debug.h>
+#if KPERF
+#include <kperf/kperf.h>
+#endif /* KPERF */
#include <corpses/task_corpse.h>
#include <prng/random.h>
#include <console/serial_protos.h>
#include <vm/vm_shared_region.h>
#include <machine/pmap.h>
#include <machine/commpage.h>
+#include <machine/machine_routines.h>
#include <libkern/version.h>
#include <sys/codesign.h>
#include <sys/kdebug.h>
#include <sys/random.h>
#include <sys/ktrace.h>
+#include <libkern/section_keywords.h>
#include <kern/ltable.h>
#include <kern/waitq.h>
#include <ipc/ipc_voucher.h>
#include <voucher/ipc_pthread_priority_internal.h>
+#include <mach/host_info.h>
+#include <pthread/workqueue_internal.h>
+#if CONFIG_XNUPOST
+#include <tests/ktest.h>
+#include <tests/xnupost.h>
+#endif
#if CONFIG_ATM
#include <atm/atm_internal.h>
#include <sys/csr.h>
#endif
-#if CONFIG_BANK
#include <bank/bank_internal.h>
-#endif
#if ALTERNATE_DEBUGGER
#include <arm64/alternate_debugger.h>
#if CONFIG_MACF
#include <security/mac_mach_internal.h>
+#if CONFIG_VNGUARD
+extern void vnguard_policy_init(void);
+#endif
#endif
#if KPC
#include <kern/hv_support.h>
#endif
+#include <san/kasan.h>
#include <i386/pmCPU.h>
-static void kernel_bootstrap_thread(void);
+static void kernel_bootstrap_thread(void);
-static void load_context(
- thread_t thread);
-#if (defined(__i386__) || defined(__x86_64__)) && NCOPY_WINDOWS > 0
-extern void cpu_userwindow_init(int);
-extern void cpu_physwindow_init(int);
-#endif
+static void load_context(
+ thread_t thread);
#if CONFIG_ECC_LOGGING
#include <kern/ecc.h>
-#endif
+#endif
#if (defined(__i386__) || defined(__x86_64__)) && CONFIG_VMX
#include <i386/vmx/vmx_cpu.h>
#endif
+#if CONFIG_DTRACE
+extern void dtrace_early_init(void);
+extern void sdt_early_init(void);
+#endif
+
// libkern/OSKextLib.cpp
-extern void OSKextRemoveKextBootstrap(void);
+extern void OSKextRemoveKextBootstrap(void);
void scale_setup(void);
extern void bsd_scale_setup(int);
extern unsigned int semaphore_max;
extern void stackshot_init(void);
-extern void ktrace_init(void);
-extern void oslog_init(void);
/*
* Running in virtual memory, on the interrupt stack.
*/
+extern struct startup_entry startup_entries[]
+__SECTION_START_SYM(STARTUP_HOOK_SEGMENT, STARTUP_HOOK_SECTION);
+
+extern struct startup_entry startup_entries_end[]
+__SECTION_END_SYM(STARTUP_HOOK_SEGMENT, STARTUP_HOOK_SECTION);
+
+static struct startup_entry *__startup_data startup_entry_cur = startup_entries;
+
+SECURITY_READ_ONLY_LATE(startup_subsystem_id_t) startup_phase = STARTUP_SUB_NONE;
+
extern int serverperfmode;
+#if DEBUG || DEVELOPMENT
+TUNABLE(startup_debug_t, startup_debug, "startup_debug", 0);
+#endif
+
/* size of kernel trace buffer, disabled by default */
-unsigned int new_nkdbufs = 0;
-unsigned int wake_nkdbufs = 0;
-unsigned int write_trace_on_panic = 0;
-static char trace_typefilter[64] = { 0 };
-boolean_t trace_serial = FALSE;
-boolean_t oslog_early_boot_complete = FALSE;
+TUNABLE(unsigned int, new_nkdbufs, "trace", 0);
+TUNABLE(unsigned int, wake_nkdbufs, "trace_wake", 0);
+TUNABLE(unsigned int, write_trace_on_panic, "trace_panic", 0);
+TUNABLE(unsigned int, trace_wrap, "trace_wrap", 0);
/* mach leak logging */
-int log_leaks = 0;
+TUNABLE(int, log_leaks, "-l", 0);
static inline void
kernel_bootstrap_log(const char *message)
{
-// kprintf("kernel_bootstrap: %s\n", message);
+ if ((startup_debug & STARTUP_DEBUG_VERBOSE) &&
+ startup_phase >= STARTUP_SUB_KPRINTF) {
+ kprintf("kernel_bootstrap: %s\n", message);
+ }
kernel_debug_string_early(message);
}
static inline void
kernel_bootstrap_thread_log(const char *message)
{
-// kprintf("kernel_bootstrap_thread: %s\n", message);
+ if ((startup_debug & STARTUP_DEBUG_VERBOSE) &&
+ startup_phase >= STARTUP_SUB_KPRINTF) {
+ kprintf("kernel_bootstrap_thread: %s\n", message);
+ }
kernel_debug_string_early(message);
}
-void
-kernel_early_bootstrap(void)
-{
- /* serverperfmode is needed by timer setup */
- if (PE_parse_boot_argn("serverperfmode", &serverperfmode, sizeof (serverperfmode))) {
- serverperfmode = 1;
- }
+extern void
+qsort(void *a, size_t n, size_t es, int (*cmp)(const void *, const void *));
- lck_mod_init();
+__startup_func
+static int
+startup_entry_cmp(const void *e1, const void *e2)
+{
+ const struct startup_entry *a = e1;
+ const struct startup_entry *b = e2;
+ if (a->subsystem == b->subsystem) {
+ if (a->rank == b->rank) {
+ return 0;
+ }
+ return a->rank > b->rank ? 1 : -1;
+ }
+ return a->subsystem > b->subsystem ? 1 : -1;
+}
+__startup_func
+void
+kernel_startup_bootstrap(void)
+{
/*
- * Initialize the timer callout world
+ * Sort the various STARTUP() entries by subsystem/rank.
*/
- timer_call_init();
+ size_t n = startup_entries_end - startup_entries;
+
+ if (n == 0) {
+ panic("Section %s,%s missing",
+ STARTUP_HOOK_SEGMENT, STARTUP_HOOK_SECTION);
+ }
+ if (((uintptr_t)startup_entries_end - (uintptr_t)startup_entries) %
+ sizeof(struct startup_entry)) {
+ panic("Section %s,%s has invalid size",
+ STARTUP_HOOK_SEGMENT, STARTUP_HOOK_SECTION);
+ }
+
+ qsort(startup_entries, n, sizeof(struct startup_entry), startup_entry_cmp);
-#if CONFIG_SCHED_SFI
/*
- * Configure SFI classes
+ * Then initialize all tunables, and early locks
*/
- sfi_early_init();
-#endif
+ kernel_startup_initialize_upto(STARTUP_SUB_LOCKS_EARLY);
}
-extern boolean_t IORamDiskBSDRoot(void);
-extern kern_return_t cpm_preallocate_early(void);
+__startup_func
+extern void
+kernel_startup_tunable_init(const struct startup_tunable_spec *spec)
+{
+ if (PE_parse_boot_argn(spec->name, spec->var_addr, spec->var_len)) {
+ if (spec->var_is_bool) {
+ /* make sure bool's are valued in {0, 1} */
+ *(bool *)spec->var_addr = *(uint8_t *)spec->var_addr;
+ }
+ }
+}
+
+static void
+kernel_startup_log(startup_subsystem_id_t subsystem)
+{
+ static const char *names[] = {
+ [STARTUP_SUB_TUNABLES] = "tunables",
+ [STARTUP_SUB_LOCKS_EARLY] = "locks_early",
+ [STARTUP_SUB_KPRINTF] = "kprintf",
+
+ [STARTUP_SUB_PMAP_STEAL] = "pmap_steal",
+ [STARTUP_SUB_VM_KERNEL] = "vm_kernel",
+ [STARTUP_SUB_KMEM] = "kmem",
+ [STARTUP_SUB_KMEM_ALLOC] = "kmem_alloc",
+ [STARTUP_SUB_ZALLOC] = "zalloc",
+ [STARTUP_SUB_PERCPU] = "percpu",
+ [STARTUP_SUB_LOCKS] = "locks",
+
+ [STARTUP_SUB_CODESIGNING] = "codesigning",
+ [STARTUP_SUB_OSLOG] = "oslog",
+ [STARTUP_SUB_MACH_IPC] = "mach_ipc",
+ [STARTUP_SUB_SYSCTL] = "sysctl",
+ [STARTUP_SUB_EARLY_BOOT] = "early_boot",
+
+ /* LOCKDOWN is special and its value won't fit here. */
+ };
+ static startup_subsystem_id_t logged = STARTUP_SUB_NONE;
+
+ if (subsystem <= logged) {
+ return;
+ }
+
+ if (subsystem < sizeof(names) / sizeof(names[0]) && names[subsystem]) {
+ kernel_bootstrap_log(names[subsystem]);
+ }
+ logged = subsystem;
+}
+__startup_func
void
-kernel_bootstrap(void)
+kernel_startup_initialize_upto(startup_subsystem_id_t upto)
{
- kern_return_t result;
- thread_t thread;
- char namep[16];
+ struct startup_entry *cur = startup_entry_cur;
+
+ assert(startup_phase < upto);
+
+ while (cur < startup_entries_end && cur->subsystem <= upto) {
+ if ((startup_debug & STARTUP_DEBUG_VERBOSE) &&
+ startup_phase >= STARTUP_SUB_KPRINTF) {
+ kprintf("%s[%d, rank %d]: %p(%p)\n", __func__,
+ cur->subsystem, cur->rank, cur->func, cur->arg);
+ }
+ startup_phase = cur->subsystem - 1;
+ kernel_startup_log(cur->subsystem);
+ cur->func(cur->arg);
+ startup_entry_cur = ++cur;
+ }
+ kernel_startup_log(upto);
- printf("%s\n", version); /* log kernel version */
+ if ((startup_debug & STARTUP_DEBUG_VERBOSE) &&
+ upto >= STARTUP_SUB_KPRINTF) {
+ kprintf("%s: reached phase %d\n", __func__, upto);
+ }
+ startup_phase = upto;
+}
- if (PE_parse_boot_argn("-l", namep, sizeof (namep))) /* leaks logging */
- log_leaks = 1;
+void
+kernel_bootstrap(void)
+{
+ kern_return_t result;
+ thread_t thread;
+ char namep[16];
- PE_parse_boot_argn("trace", &new_nkdbufs, sizeof (new_nkdbufs));
- PE_parse_boot_argn("trace_wake", &wake_nkdbufs, sizeof (wake_nkdbufs));
- PE_parse_boot_argn("trace_panic", &write_trace_on_panic, sizeof(write_trace_on_panic));
- PE_parse_boot_arg_str("trace_typefilter", trace_typefilter, sizeof(trace_typefilter));
+ printf("%s\n", version); /* log kernel version */
scale_setup();
kernel_bootstrap_log("vm_mem_bootstrap");
vm_mem_bootstrap();
- kernel_bootstrap_log("cs_init");
- cs_init();
-
- kernel_bootstrap_log("vm_mem_init");
- vm_mem_init();
-
machine_info.memory_size = (uint32_t)mem_size;
+#if XNU_TARGET_OS_OSX
+ machine_info.max_mem = max_mem_actual;
+#else
machine_info.max_mem = max_mem;
+#endif /* XNU_TARGET_OS_OSX */
machine_info.major_version = version_major;
machine_info.minor_version = version_minor;
- oslog_init();
+ kernel_startup_initialize_upto(STARTUP_SUB_OSLOG);
+
+#if KASAN
+ kernel_bootstrap_log("kasan_late_init");
+ kasan_late_init();
+#endif
#if CONFIG_TELEMETRY
kernel_bootstrap_log("telemetry_init");
telemetry_init();
#endif
-#if CONFIG_CSR
- kernel_bootstrap_log("csr_init");
- csr_init();
-#endif
-
- if (PE_i_can_has_debugger(NULL) &&
- PE_parse_boot_argn("-show_pointers", &namep, sizeof (namep))) {
- doprnt_hide_pointers = FALSE;
+ if (PE_i_can_has_debugger(NULL)) {
+ if (PE_parse_boot_argn("-show_pointers", &namep, sizeof(namep))) {
+ doprnt_hide_pointers = FALSE;
+ }
+ if (PE_parse_boot_argn("-no_slto_panic", &namep, sizeof(namep))) {
+ extern boolean_t spinlock_timeout_panic;
+ spinlock_timeout_panic = FALSE;
+ }
}
kernel_bootstrap_log("console_init");
kernel_bootstrap_log("sched_init");
sched_init();
- kernel_bootstrap_log("ltable_bootstrap");
- ltable_bootstrap();
-
kernel_bootstrap_log("waitq_bootstrap");
waitq_bootstrap();
- kernel_bootstrap_log("ipc_bootstrap");
- ipc_bootstrap();
-
#if CONFIG_MACF
kernel_bootstrap_log("mac_policy_init");
mac_policy_init();
#endif
- kernel_bootstrap_log("ipc_init");
- ipc_init();
+ kernel_startup_initialize_upto(STARTUP_SUB_MACH_IPC);
/*
* As soon as the virtual memory system is up, we record
PMAP_ACTIVATE_KERNEL(master_cpu);
kernel_bootstrap_log("mapping_free_prime");
- mapping_free_prime(); /* Load up with temporary mapping blocks */
+ mapping_free_prime(); /* Load up with temporary mapping blocks */
kernel_bootstrap_log("machine_init");
machine_init();
+ kernel_bootstrap_log("thread_machine_init_template");
+ thread_machine_init_template();
+
kernel_bootstrap_log("clock_init");
clock_init();
- ledger_init();
-
/*
* Initialize the IPC, task, and thread subsystems.
*/
+#if CONFIG_THREAD_GROUPS
+ kernel_bootstrap_log("thread_group_init");
+ thread_group_init();
+#endif
+
#if CONFIG_COALITIONS
kernel_bootstrap_log("coalitions_init");
coalitions_init();
kernel_bootstrap_log("thread_init");
thread_init();
+ kernel_bootstrap_log("restartable_init");
+ restartable_init();
+
+ kernel_bootstrap_log("workq_init");
+ workq_init();
+
+ kernel_bootstrap_log("turnstiles_init");
+ turnstiles_init();
+
#if CONFIG_ATM
/* Initialize the Activity Trace Resource Manager. */
kernel_bootstrap_log("atm_init");
kernel_bootstrap_log("mach_init_activity_id");
mach_init_activity_id();
-#if CONFIG_BANK
/* Initialize the BANK Manager. */
kernel_bootstrap_log("bank_init");
bank_init();
-#endif
kernel_bootstrap_log("ipc_pthread_priority_init");
ipc_pthread_priority_init();
/* initialize the corpse config based on boot-args */
corpses_init();
+ /* initialize host_statistics */
+ host_statistics_init();
+
+ /* initialize exceptions */
+ kernel_bootstrap_log("exception_init");
+ exception_init();
+
+#if CONFIG_SCHED_SFI
+ kernel_bootstrap_log("sfi_init");
+ sfi_init();
+#endif
+
/*
* Create a kernel thread to execute the kernel bootstrap.
*/
+
kernel_bootstrap_log("kernel_thread_create");
result = kernel_thread_create((thread_continue_t)kernel_bootstrap_thread, NULL, MAXPRI_KERNEL, &thread);
- if (result != KERN_SUCCESS) panic("kernel_bootstrap: result = %08X\n", result);
+ if (result != KERN_SUCCESS) {
+ panic("kernel_bootstrap: result = %08X\n", result);
+ }
+
+ /* The static init_thread is re-used as the bootstrap thread */
+ assert(thread == current_thread());
+ /* TODO: do a proper thread_start() (without the thread_setrun()) */
thread->state = TH_RUN;
thread->last_made_runnable_time = mach_absolute_time();
+ thread_set_thread_name(thread, "kernel_bootstrap_thread");
+
thread_deallocate(thread);
kernel_bootstrap_log("load_context - done");
/*NOTREACHED*/
}
-int kth_started = 0;
-
-vm_offset_t vm_kernel_addrperm;
-vm_offset_t buf_kernel_addrperm;
-vm_offset_t vm_kernel_addrperm_ext;
+SECURITY_READ_ONLY_LATE(vm_offset_t) vm_kernel_addrperm;
+SECURITY_READ_ONLY_LATE(vm_offset_t) buf_kernel_addrperm;
+SECURITY_READ_ONLY_LATE(vm_offset_t) vm_kernel_addrperm_ext;
+SECURITY_READ_ONLY_LATE(uint64_t) vm_kernel_addrhash_salt;
+SECURITY_READ_ONLY_LATE(uint64_t) vm_kernel_addrhash_salt_ext;
/*
* Now running in a thread. Kick off other services,
static void
kernel_bootstrap_thread(void)
{
- processor_t processor = current_processor();
+ processor_t processor = current_processor();
-#define kernel_bootstrap_thread_kprintf(x...) /* kprintf("kernel_bootstrap_thread: " x) */
kernel_bootstrap_thread_log("idle_thread_create");
/*
* Create the idle processor thread.
kernel_bootstrap_thread_log("thread_call_initialize");
thread_call_initialize();
+ /*
+ * Work interval subsystem initialization.
+ * Needs to be done once thread calls have been initialized.
+ */
+ kernel_bootstrap_thread_log("work_interval_initialize");
+ work_interval_subsystem_init();
+
/*
* Remain on current processor as
* additional processors come online.
kernel_bootstrap_thread_log("thread_bind");
thread_bind(processor);
-
/*
* Initialize ipc thread call support.
*/
*/
device_service_create();
- kth_started = 1;
-
-#if (defined(__i386__) || defined(__x86_64__)) && NCOPY_WINDOWS > 0
- /*
- * Create and initialize the physical copy window for processor 0
- * This is required before starting kicking off IOKit.
- */
- cpu_physwindow_init(0);
-#endif
-
+ phys_carveout_init();
-
-#if MACH_KDP
+#if MACH_KDP
kernel_bootstrap_log("kdp_init");
kdp_init();
#endif
kpc_init();
#endif
-#if CONFIG_ECC_LOGGING
- ecc_log_init();
-#endif
-
#if HYPERVISOR
+ kernel_bootstrap_thread_log("hv_support_init");
hv_support_init();
#endif
bootprofile_init();
#endif
-#if (defined(__i386__) || defined(__x86_64__)) && CONFIG_VMX
- vmx_init();
-#endif
-
- kernel_bootstrap_thread_log("ktrace_init");
- ktrace_init();
-
- if (new_nkdbufs > 0 || kdebug_serial || log_leaks) {
- kdebug_boot_trace(new_nkdbufs, trace_typefilter);
- }
+ char trace_typefilter[256] = {};
+ PE_parse_boot_arg_str("trace_typefilter", trace_typefilter,
+ sizeof(trace_typefilter));
+#if KPERF
+ kperf_init();
+#endif /* KPERF */
+ kdebug_init(new_nkdbufs, trace_typefilter,
+ (trace_wrap ? KDOPT_WRAPPING : 0) | KDOPT_ATBOOT);
- kernel_bootstrap_log("prng_init");
- prng_cpu_init(master_cpu);
-
-#ifdef MACH_BSD
- kernel_bootstrap_log("bsd_early_init");
- bsd_early_init();
-#endif
+ kernel_startup_initialize_upto(STARTUP_SUB_SYSCTL);
-#ifdef IOKIT
+#ifdef IOKIT
kernel_bootstrap_log("PE_init_iokit");
PE_init_iokit();
#endif
assert(ml_get_interrupts_enabled() == FALSE);
- // Set this flag to indicate that it is now okay to start testing
- // for interrupts / preemeption disabled while logging
- oslog_early_boot_complete = TRUE;
+ /*
+ * Past this point, kernel subsystems that expect to operate with
+ * interrupts or preemption enabled may begin enforcement.
+ */
+ kernel_startup_initialize_upto(STARTUP_SUB_EARLY_BOOT);
- (void) spllo(); /* Allow interruptions */
+#if INTERRUPT_MASKED_DEBUG
+ // Reset interrupts masked timeout before we enable interrupts
+ ml_spin_debug_clear_self();
+#endif
+ (void) spllo(); /* Allow interruptions */
-#if (defined(__i386__) || defined(__x86_64__)) && NCOPY_WINDOWS > 0
/*
- * Create and initialize the copy window for processor 0
- * This also allocates window space for all other processors.
- * However, this is dependent on the number of processors - so this call
- * must be after IOKit has been started because IOKit performs processor
- * discovery.
+ * This will start displaying progress to the user, start as early as possible
*/
- cpu_userwindow_init(0);
-#endif
+ initialize_screen(NULL, kPEAcquireScreen);
/*
* Initialize the shared region module.
*/
- vm_shared_region_init();
vm_commpage_init();
vm_commpage_text_init();
#if CONFIG_MACF
kernel_bootstrap_log("mac_policy_initmach");
mac_policy_initmach();
+#if CONFIG_VNGUARD
+ kernel_bootstrap_log("vnguard_policy_init");
+ vnguard_policy_init();
+#endif
#endif
+#if CONFIG_DTRACE
+ kernel_bootstrap_log("dtrace_early_init");
+ dtrace_early_init();
+ sdt_early_init();
+#endif
-#if CONFIG_SCHED_SFI
- kernel_bootstrap_log("sfi_init");
- sfi_init();
+#ifndef BCM2837
+ kernel_bootstrap_log("trust_cache_init");
+ trust_cache_init();
#endif
+ kernel_startup_initialize_upto(STARTUP_SUB_LOCKDOWN);
+
+ /*
+ * Get rid of segments used to bootstrap kext loading. This removes
+ * the KLD, PRELINK symtab, LINKEDIT, and symtab segments/load commands.
+ * Must be done prior to lockdown so that we can free (and possibly relocate)
+ * the static KVA mappings used for the jettisoned bootstrap segments.
+ */
+ kernel_bootstrap_log("OSKextRemoveKextBootstrap");
+ OSKextRemoveKextBootstrap();
+
/*
* Initialize the globals used for permuting kernel
* addresses that may be exported to userland as tokens
buf_kernel_addrperm |= 1;
read_random(&vm_kernel_addrperm_ext, sizeof(vm_kernel_addrperm_ext));
vm_kernel_addrperm_ext |= 1;
+ read_random(&vm_kernel_addrhash_salt, sizeof(vm_kernel_addrhash_salt));
+ read_random(&vm_kernel_addrhash_salt_ext, sizeof(vm_kernel_addrhash_salt_ext));
- vm_set_restrictions();
+ /* No changes to kernel text and rodata beyond this point. */
+ kernel_bootstrap_log("machine_lockdown");
+ machine_lockdown();
+#ifdef IOKIT
+ kernel_bootstrap_log("PE_lockdown_iokit");
+ PE_lockdown_iokit();
+#endif
+ /*
+ * max_cpus must be nailed down by the time PE_lockdown_iokit() finishes,
+ * at the latest
+ */
+ vm_set_restrictions(machine_info.max_cpus);
+
+#ifdef CONFIG_XNUPOST
+ kern_return_t result = kernel_list_tests();
+ result = kernel_do_post();
+ if (result != KERN_SUCCESS) {
+ panic("kernel_do_post: Tests failed with result = 0x%08x\n", result);
+ }
+ kernel_bootstrap_log("kernel_do_post - done");
+#endif /* CONFIG_XNUPOST */
+#if KPERF
+ kperf_init_early();
+#endif
+
/*
* Start the user bootstrap.
*/
-#ifdef MACH_BSD
+#ifdef MACH_BSD
bsd_init();
#endif
- /*
- * Get rid of segments used to bootstrap kext loading. This removes
- * the KLD, PRELINK symtab, LINKEDIT, and symtab segments/load commands.
- */
- OSKextRemoveKextBootstrap();
- serial_keyboard_init(); /* Start serial keyboard if wanted */
+ /*
+ * Get rid of pages used for early boot tracing.
+ */
+ kdebug_free_early_buf();
- vm_page_init_local_q();
+ serial_keyboard_init(); /* Start serial keyboard if wanted */
+
+ vm_page_init_local_q(machine_info.max_cpus);
thread_bind(PROCESSOR_NULL);
+ /*
+ * Now that all CPUs are available to run threads, this is essentially
+ * a background thread. Take this opportunity to initialize and free
+ * any remaining vm_pages that were delayed earlier by pmap_startup().
+ */
+ vm_free_delayed_pages();
+
/*
* Become the pageout daemon.
*/
* slave_main:
*
* Load the first thread to start a processor.
+ * This path will also be used by the master processor
+ * after being offlined.
*/
void
slave_main(void *machine_param)
{
- processor_t processor = current_processor();
- thread_t thread;
+ processor_t processor = current_processor();
+ thread_t thread;
/*
* Use the idle processor thread if there
* is no dedicated start up thread.
*/
- if (processor->next_thread == THREAD_NULL) {
+ if (processor->processor_offlined == true) {
+ /* Return to the saved processor_offline context */
+ assert(processor->startup_thread == THREAD_NULL);
+
thread = processor->idle_thread;
- thread->continuation = (thread_continue_t)processor_start_thread;
thread->parameter = machine_param;
- }
- else {
- thread = processor->next_thread;
- processor->next_thread = THREAD_NULL;
+ } else if (processor->startup_thread) {
+ thread = processor->startup_thread;
+ processor->startup_thread = THREAD_NULL;
+ } else {
+ thread = processor->idle_thread;
+ thread->continuation = processor_start_thread;
+ thread->parameter = machine_param;
}
load_context(thread);
* Called at splsched.
*/
void
-processor_start_thread(void *machine_param)
+processor_start_thread(void *machine_param,
+ __unused wait_result_t result)
{
- processor_t processor = current_processor();
- thread_t self = current_thread();
+ processor_t processor = current_processor();
+ thread_t self = current_thread();
slave_machine_init(machine_param);
* If running the idle processor thread,
* reenter the idle loop, else terminate.
*/
- if (self == processor->idle_thread)
- thread_block((thread_continue_t)idle_thread);
+ if (self == processor->idle_thread) {
+ thread_block(idle_thread);
+ }
thread_terminate(self);
/*NOTREACHED*/
* load_context:
*
* Start the first thread on a processor.
+ * This may be the first thread ever run on a processor, or
+ * it could be a processor that was previously offlined.
*/
-static void
+static void __attribute__((noreturn))
load_context(
- thread_t thread)
+ thread_t thread)
{
- processor_t processor = current_processor();
+ processor_t processor = current_processor();
#define load_context_kprintf(x...) /* kprintf("load_context: " x) */
machine_set_current_thread(thread);
load_context_kprintf("processor_up\n");
- processor_up(processor);
PMAP_ACTIVATE_KERNEL(processor->cpu_id);
* to have reserved stack.
*/
load_context_kprintf("thread %p, stack %lx, stackptr %lx\n", thread,
- thread->kernel_stack, thread->machine.kstackptr);
+ thread->kernel_stack, thread->machine.kstackptr);
if (!thread->kernel_stack) {
load_context_kprintf("stack_alloc_try\n");
- if (!stack_alloc_try(thread))
+ if (!stack_alloc_try(thread)) {
panic("load_context");
+ }
}
/*
* The idle processor threads are not counted as
* running for load calculations.
*/
- if (!(thread->state & TH_IDLE))
- sched_run_incr(thread);
+ if (!(thread->state & TH_IDLE)) {
+ SCHED(run_count_incr)(thread);
+ }
processor->active_thread = thread;
- processor->current_pri = thread->sched_pri;
- processor->current_thmode = thread->sched_mode;
- processor->current_sfi_class = SFI_CLASS_KERNEL;
+ processor_state_update_explicit(processor, thread->sched_pri,
+ SFI_CLASS_KERNEL, PSET_SMP, thread_get_perfcontrol_class(thread), THREAD_URGENCY_NONE,
+ ((thread->state & TH_IDLE) || (thread->bound_processor != PROCESSOR_NULL)) ? TH_BUCKET_SCHED_MAX : thread->th_sched_bucket);
+ processor->current_is_bound = thread->bound_processor != PROCESSOR_NULL;
+ processor->current_is_NO_SMT = false;
+ processor->current_is_eagerpreempt = false;
+#if CONFIG_THREAD_GROUPS
+ processor->current_thread_group = thread_group_get(thread);
+#endif
processor->starting_pri = thread->sched_pri;
-
processor->deadline = UINT64_MAX;
thread->last_processor = processor;
-
+ processor_up(processor);
processor->last_dispatch = mach_absolute_time();
timer_start(&thread->system_timer, processor->last_dispatch);
- PROCESSOR_DATA(processor, thread_timer) = PROCESSOR_DATA(processor, kernel_timer) = &thread->system_timer;
+ processor->thread_timer = processor->kernel_timer = &thread->system_timer;
+
+ timer_start(&processor->system_state, processor->last_dispatch);
+ processor->current_state = &processor->system_state;
- timer_start(&PROCESSOR_DATA(processor, system_state), processor->last_dispatch);
- PROCESSOR_DATA(processor, current_state) = &PROCESSOR_DATA(processor, system_state);
+#if __AMP__
+ if (processor->processor_set->pset_cluster_type == PSET_AMP_P) {
+ timer_start(&thread->ptime, processor->last_dispatch);
+ }
+#endif
+
+ cpu_quiescent_counter_join(processor->last_dispatch);
PMAP_ACTIVATE_USER(thread, processor->cpu_id);
load_context_kprintf("machine_load_context\n");
+
machine_load_context(thread);
/*NOTREACHED*/
}
void
-scale_setup()
+scale_setup(void)
{
int scale = 0;
#if defined(__LP64__)
typeof(task_max) task_max_base = task_max;
/* Raise limits for servers with >= 16G */
- if ((serverperfmode != 0) && ((uint64_t)sane_size >= (uint64_t)(16 * 1024 * 1024 *1024ULL))) {
- scale = (int)((uint64_t)sane_size / (uint64_t)(8 * 1024 * 1024 *1024ULL));
+ if ((serverperfmode != 0) && ((uint64_t)max_mem_actual >= (uint64_t)(16 * 1024 * 1024 * 1024ULL))) {
+ scale = (int)((uint64_t)sane_size / (uint64_t)(8 * 1024 * 1024 * 1024ULL));
/* limit to 128 G */
- if (scale > 16)
+ if (scale > 16) {
scale = 16;
+ }
task_max_base = 2500;
- } else if ((uint64_t)sane_size >= (uint64_t)(3 * 1024 * 1024 *1024ULL))
- scale = 2;
+ /* Raise limits for machines with >= 3GB */
+ } else if ((uint64_t)max_mem_actual >= (uint64_t)(3 * 1024 * 1024 * 1024ULL)) {
+ if ((uint64_t)max_mem_actual < (uint64_t)(8 * 1024 * 1024 * 1024ULL)) {
+ scale = 2;
+ } else {
+ /* limit to 64GB */
+ scale = MIN(16, (int)((uint64_t)max_mem_actual / (uint64_t)(4 * 1024 * 1024 * 1024ULL)));
+ }
+ }
task_max = MAX(task_max, task_max_base * scale);
if (scale != 0) {
task_threadmax = task_max;
- thread_max = task_max * 5;
+ thread_max = task_max * 5;
}
#endif
bsd_scale_setup(scale);
-
- ipc_space_max = SPACE_MAX;
- ipc_port_max = PORT_MAX;
- ipc_pset_max = SET_MAX;
- semaphore_max = SEMAPHORE_MAX;
}
-
projects / apple / xnu.git / blobdiff