1# 2# Mach Operating System 3# Copyright (c) 1986 Carnegie-Mellon University 4# Copyright 2001-2018 Apple Inc. 5# 6# All rights reserved. The CMU software License Agreement 7# specifies the terms and conditions for use and redistribution. 8# 9####################################################################### 10# 11# Master machine independent configuration file. 12# 13# Specific configuration files are created based on this and 14# the machine specific master file using the doconf script. 15# 16# Any changes to the master configuration files will affect all 17# other configuration files based upon it. 18# 19####################################################################### 20# 21# To build a configuration, execute "doconf <configuration>." 22# Configurations are specified in the "Configurations:" section 23# of the MASTER and MASTER.* files as follows: 24# 25# <configuration> = [ <attribute0> <attribute1> ... <attributeN> ] 26# 27# Lines in the MASTER and MASTER.* files are selected based on 28# the attribute selector list, found in a comment at the end of 29# the line. This is a list of attributes separated by commas. 30# The "!" operator selects the line if none of the attributes are 31# specified. 32# 33# For example: 34# 35# <foo,bar> selects a line if "foo" or "bar" are specified. 36# <!foo,bar> selects a line if neither "foo" nor "bar" is 37# specified. 38# 39# Lines with no attributes specified are selected for all 40# configurations. 41# 42####################################################################### 43# 44# SYSTEM SIZE CONFIGURATION (select exactly one) 45# 46# xlarge = extra large scale system configuration 47# large = large scale system configuration 48# medium = medium scale system configuration 49# small = small scale system configuration 50# xsmall = extra small scale system configuration 51# bsmall = special extra small scale system configuration 52# 53####################################################################### 54# 55 56options INET # # <inet> 57 58options MACH # Standard Mach features # <mach> 59options MACH_FLIPC # Fast-Local IPC # <mach_flipc> 60options LOOP # loopback support # <loop> 61options VLAN # # <vlan> 62options BOND # # <bond> 63options IF_FAKE # # <if_fake> 64options IF_HEADLESS # # <if_headless> 65options AH_ALL_CRYPTO # AH all crypto algs # <ah_all_crypto> 66options PF # Packet Filter # <pf> 67options PF_ECN # PF use ECN marking # <pf_ecn> 68options PFLOG # PF log interface # <pflog> 69options MEASURE_BW # interface bandwidth measurement # <measure_bw> 70options DUMMYNET # dummynet support # <dummynet> 71options TRAFFIC_MGT # traffic management support # <traffic_mgt> 72options MULTICAST # Internet Protocol Class-D $ 73options TCPDEBUG # TCP debug # <tcpdebug> 74options IFNET_INPUT_SANITY_CHK # allow dlil/ifnet input sanity check # <ifnet_input_chk> 75options MULTIPATH # Multipath domain # <multipath> 76options MPTCP # Multipath TCP # <mptcp> 77options SYSV_SEM # SVID semaphores # <sysv_sem> 78options SYSV_MSG # SVID messages # <sysv_msg> 79options SYSV_SHM # SVID shared mem # <sysv_shm> 80options PSYNCH # pthread synch # <psynch> 81options FLOW_DIVERT # <flow_divert> 82options NECP # <necp> 83options CONTENT_FILTER # # <content_filter> 84options PACKET_MANGLER # # <packet_mangler> 85options REMOTE_VIF # # <remote_vif> 86options SKYWALK # # <skywalk> 87options CONFIG_NEXUS_USER_PIPE # # <config_nexus_user_pipe> 88options CONFIG_NEXUS_KERNEL_PIPE # # <config_nexus_kernel_pipe> 89options CONFIG_NEXUS_MONITOR # # <config_nexus_monitor> 90options CONFIG_NEXUS_FLOWSWITCH # # <config_nexus_flowswitch> 91options CONFIG_NEXUS_NETIF # # <config_nexus_netif> 92 93# secure_kernel - secure kernel from user programs 94options SECURE_KERNEL # <secure_kernel> 95 96# 97# 4.4 general kernel 98# 99options SOCKETS # socket support # <inet> 100options DIAGNOSTIC # diagnostics # <diagnostic> 101options PROFILE # kernel profiling # <profile> 102options SENDFILE # sendfile # <sendfile> 103options NETWORKING # networking layer # <inet> 104options CONFIG_FSE # file system events # <config_fse> 105options CONFIG_IMAGEBOOT # local image boot # <config_imageboot> 106options CONFIG_MBUF_JUMBO # jumbo cluster pool # <config_mbuf_jumbo> 107options CONFIG_IMAGEBOOT_IMG4 # authenticate image with AppleImage4 # <config_imageboot_img4> 108options CONFIG_IMAGEBOOT_CHUNKLIST # authenticate image with a chunk list # <config_imageboot_chunklist> 109 110options CONFIG_WORKLOOP_DEBUG # <config_workloop_debug> 111 112# 113# 4.4 filesystems 114# 115options MOCKFS # Boot from an executable # <mockfs> 116options FIFO # fifo support # <fifo> 117options FDESC # fdesc_fs support # <fdesc> 118options DEVFS # devfs support # <devfs> 119options ROUTEFS # routefs support # <routefs> 120options NULLFS # nullfs support # <nullfs> 121options BINDFS # bindfs support # <bindfs> 122options FS_COMPRESSION # fs compression # <fs_compression> 123options CONFIG_DEV_KMEM # /dev/kmem device for reading KVA # <config_dev_kmem> 124 125# 126# file system features 127# 128options QUOTA # file system quotas # <quota> 129options NAMEDSTREAMS # named stream vnop support # <namedstreams> 130options CONFIG_APPLEDOUBLE # apple double support # <config_appledouble> 131options CONFIG_VOLFS # volfs path support (legacy) # <config_volfs> 132options CONFIG_IMGSRC_ACCESS # source of imageboot dmg # <config_imgsrc_access> 133options CONFIG_TRIGGERS # trigger vnodes # <config_triggers> 134options CONFIG_EXT_RESOLVER # e.g. memberd # <config_ext_resolver> 135options CONFIG_SEARCHFS # searchfs syscall support # <config_searchfs> 136options CONFIG_MNT_SUID # allow suid binaries # <config_mnt_suid> 137options CONFIG_MNT_ROOTSNAP # allow rooting from snapshot # <config_mnt_rootsnap> 138options CONFIG_ROSV_STARTUP # allow read-only system volume startup # <config_rosv_startup> 139options CONFIG_FIRMLINKS # support "firmlinks" # <config_firmlinks> 140options CONFIG_MOUNT_VM # mount VM volume on startup # <config_mount_vm> 141options CONFIG_MOUNT_PREBOOTRECOVERY # mount Preboot and/or Recovery volume on startup # <config_mount_prebootrecovery> 142options CONFIG_DATALESS_FILES # support dataless file materialization # <config_dataless_files> 143options CONFIG_BASESYSTEMROOT # mount BaseSystem as initial root filesystem on some kinds of startup # <config_basesystemroot> 144options CONFIG_UNION_MOUNTS # support union mounts # <config_union_mounts> 145options CONFIG_FILE_LEASES # local file leasing support # <config_file_leases> 146 147# 148# VFS debugging 149# 150options CONFIG_IOCOUNT_TRACE # enable vnode's iocount tracing # <config_iocount_trace> 151 152# NFS support 153# 154options NFSSERVER # Be an NFS server # <nfsserver> 155options CONFIG_NETBOOT # network booting # <config_netboot> 156 157# 158# Machine Independent Apple Features 159# 160profile # build a profiling kernel # <profile> 161 162# 163# IPv6 Support 164# 165options IPSEC # IP security # <ipsec> 166options IPSEC_ESP # IP security # <ipsec> 167 168pseudo-device gif 1 # <gif> 169pseudo-device dummy 2 # <dummy> 170pseudo-device stf 1 # <stf> 171 172options CRYPTO # <ipsec,crypto> 173options CRYPTO_SHA2 # <crypto_sha2> 174options ENCRYPTED_SWAP # <encrypted_swap> 175 176options CONFIG_IMG4 # <config_img4> 177 178options ZLIB # inflate/deflate support # <zlib> 179options ZLIBC # inflate/deflate support # <zlibc> 180 181options IF_BRIDGE # <if_bridge> 182 183# 184# configurable kernel event related resources 185# 186options CONFIG_KN_HASHSIZE=64 # <medium,large,xlarge> 187options CONFIG_KN_HASHSIZE=48 # <small,xsmall> 188options CONFIG_KN_HASHSIZE=20 # <bsmall> 189 190# 191# configurable vfs related resources 192# CONFIG_VNODES - used to pre allocate vnode related resources 193# CONFIG_NC_HASH - name cache hash table allocation 194# CONFIG_VFS_NAMES - name strings 195# 196# 263168 magic number for medium CONFIG_VNODES is based on memory 197# Number vnodes is (memsize/64k) + 1024 198# This is the calculation that is used by launchd in tiger 199# we are clipping the max based on 16G 200# ie ((16*1024*1024*1024)/(64 *1024)) + 1024 = 263168; 201 202options CONFIG_VNODES=263168 # <large,xlarge> 203options CONFIG_VNODES=263168 # <medium> 204options CONFIG_VNODES=10240 # <small> 205options CONFIG_VNODES=750 # <bsmall> 206 207options CONFIG_NC_HASH=5120 # <large,xlarge> 208options CONFIG_NC_HASH=4096 # <medium> 209options CONFIG_NC_HASH=2048 # <small,xsmall> 210options CONFIG_NC_HASH=1024 # <bsmall> 211 212options CONFIG_VFS_NAMES=5120 # <large,xlarge> 213options CONFIG_VFS_NAMES=4096 # <medium> 214options CONFIG_VFS_NAMES=3072 # <small,xsmall> 215options CONFIG_VFS_NAMES=2048 # <bsmall> 216 217options CONFIG_MAX_CLUSTERS=8 # <xlarge,large,medium> 218options CONFIG_MAX_CLUSTERS=4 # <small,xsmall,bsmall> 219 220# 221# configurable options for minumum number of buffers for kernel memory 222# 223options CONFIG_MIN_NBUF=256 # <medium,large,xlarge> 224options CONFIG_MIN_NBUF=128 # <small> 225options CONFIG_MIN_NBUF=80 # <xsmall> 226options CONFIG_MIN_NBUF=64 # <bsmall> 227 228options CONFIG_MIN_NIOBUF=128 # <medium,large,xlarge> 229options CONFIG_MIN_NIOBUF=64 # <xsmall,small> 230options CONFIG_MIN_NIOBUF=32 # <bsmall> 231 232# 233# set maximum space used for packet buffers 234# 235options CONFIG_NMBCLUSTERS="((1024 * 1024) / MCLBYTES)" # <large,xlarge> 236options CONFIG_NMBCLUSTERS="((1024 * 512) / MCLBYTES)" # <medium> 237options CONFIG_NMBCLUSTERS="((1024 * 256) / MCLBYTES)" # <bsmall,xsmall,small> 238 239# 240# Configure size of TCP hash table 241# 242options CONFIG_TCBHASHSIZE=4096 # <medium,large,xlarge> 243options CONFIG_TCBHASHSIZE=128 # <xsmall,small,bsmall> 244 245# 246# configurable async IO options 247# CONFIG_AIO_MAX - system wide limit of async IO requests. 248# CONFIG_AIO_PROCESS_MAX - process limit of async IO requests. 249# CONFIG_AIO_THREAD_COUNT - number of async IO worker threads created. 250# 251options CONFIG_AIO_MAX=360 # <xlarge> 252options CONFIG_AIO_MAX=180 # <large> 253options CONFIG_AIO_MAX=90 # <medium> 254options CONFIG_AIO_MAX=45 # <small> 255options CONFIG_AIO_MAX=20 # <xsmall> 256options CONFIG_AIO_MAX=10 # <bsmall> 257 258options CONFIG_AIO_PROCESS_MAX=64 # <xlarge> 259options CONFIG_AIO_PROCESS_MAX=32 # <large> 260options CONFIG_AIO_PROCESS_MAX=16 # <medium> 261options CONFIG_AIO_PROCESS_MAX=12 # <small> 262options CONFIG_AIO_PROCESS_MAX=8 # <xsmall> 263options CONFIG_AIO_PROCESS_MAX=4 # <bsmall> 264 265options CONFIG_AIO_THREAD_COUNT=16 # <xlarge> 266options CONFIG_AIO_THREAD_COUNT=8 # <large> 267options CONFIG_AIO_THREAD_COUNT=4 # <medium> 268options CONFIG_AIO_THREAD_COUNT=3 # <small> 269options CONFIG_AIO_THREAD_COUNT=2 # <xsmall,bsmall> 270 271options CONFIG_MAXVIFS=32 # <medium,large,xlarge> 272options CONFIG_MAXVIFS=16 # <small,xsmall> 273options CONFIG_MAXVIFS=2 # <bsmall> 274 275options CONFIG_MFCTBLSIZ=256 # <medium,large,xlarge> 276options CONFIG_MFCTBLSIZ=128 # <small,xsmall> 277options CONFIG_MFCTBLSIZ=16 # <bsmall> 278 279# 280# configurable kernel message buffer size 281# 282options CONFIG_MSG_BSIZE_REL=16384 # <msgb_small> 283options CONFIG_MSG_BSIZE_DEV=131072 # <msgb_small> 284options CONFIG_MSG_BSIZE_REL=131072 # <msgb_large> 285options CONFIG_MSG_BSIZE_DEV=131072 # <msgb_large> 286options CONFIG_MSG_BSIZE=CONFIG_MSG_BSIZE_REL # <!development,debug> 287options CONFIG_MSG_BSIZE=CONFIG_MSG_BSIZE_DEV # <development,debug> 288 289# 290# maximum size of the per-process Mach IPC table 291# 292options CONFIG_IPC_TABLE_ENTRIES_SIZE_MAX=3145728 # 3M == 131072 entries # <bsmall,small,xsmall> 293options CONFIG_IPC_TABLE_ENTRIES_SIZE_MAX=7340032 # 7M == 305834 entries # <medium,large,xlarge> 294options CONFIG_IPC_TABLE_REQUEST_SIZE_MAX=1048576 # 1M == 65536 requests # <bsmall,small,xsmall> 295options CONFIG_IPC_TABLE_REQUEST_SIZE_MAX=2097152 # 2M == 131072 requests # <medium,large,xlarge> 296 297# 298# maximum copyout size for IPC debugging tools 299# 300options CONFIG_IPC_KERNEL_MAP_SIZE=32 # 32M # <bsmall,small,xsmall> 301options CONFIG_IPC_KERNEL_MAP_SIZE=64 # 64M # <medium,large,xlarge> 302 303# 304# configurable kernel - use these options to strip strings from panic 305# and printf calls. 306# no_printf_str - saves around 45K of kernel footprint. 307# 308options CONFIG_NO_PRINTF_STRINGS # <no_printf_str> 309options CONFIG_NO_KPRINTF_STRINGS # <no_kprintf_str> 310 311# support vsprintf (deprecated in favor of vsnprintf) 312options CONFIG_VSPRINTF # <vsprintf> 313 314# 315# configurable kernel - general switch to say we are building for an 316# embedded device 317# 318options CONFIG_EMBEDDED # <config_embedded> 319 320 321options NOS_ARM_ASM # <nos_arm_asm> 322options NOS_ARM_PMAP # <nos_arm_pmap> 323 324# support dynamic signing of code 325# 326options CONFIG_DYNAMIC_CODE_SIGNING # <dynamic_codesigning> 327 328# enforce library validation on all processes. 329# 330options CONFIG_ENFORCE_LIBRARY_VALIDATION # <config_library_validation> 331 332# support loading a second static trust cache 333# 334options CONFIG_SECOND_STATIC_TRUST_CACHE # <second_static_trust_cache> 335 336# support supplemental signatures 337# 338options CONFIG_SUPPLEMENTAL_SIGNATURES # <config_supplemental_signatures> 339 340# 341# code decryption... used on embedded for app protection, DSMOS on desktop 342# 343options CONFIG_CODE_DECRYPTION # <config_code_decryption> 344 345# 346# User Content Protection, used on embedded 347# 348options CONFIG_PROTECT # <config_protect> 349 350#allow write-protection of key page 351options CONFIG_KEYPAGE_WP # <config_keypage_wp> 352 353# 354# allow vm_pageout_scan to dynamically adjust its priority based on priorities of waiters 355# 356options CONFIG_VPS_DYNAMIC_PRIO # <vps_dynamic_prio> 357 358# 359# enable per-process memory priority tracking 360# 361options CONFIG_MEMORYSTATUS # <memorystatus> 362 363options CONFIG_DEFERRED_RECLAIM # <config_deferred_reclaim> 364 365# 366# enable jetsam - used on embedded 367# 368options CONFIG_JETSAM # <jetsam> 369 370# 371# enable new wait queue implementation stats / debugging 372# 373options CONFIG_WAITQ_STATS # <config_waitq_stats> 374 375# 376# enable freezing of suspended processes - used on embedded 377# 378options CONFIG_FREEZE # <freeze> 379 380options CHECK_CS_VALIDATION_BITMAP # <config_cs_validation_bitmap> 381 382# 383# enable physical writes accounting 384# 385options CONFIG_PHYS_WRITE_ACCT # <phys_write_acct> 386 387# 388# enable detectiion of file cache thrashing - used on platforms with 389# dynamic VM compression enabled 390# 391options CONFIG_PHANTOM_CACHE # <phantom_cache> 392 393# 394# memory pressure event support 395# 396options VM_PRESSURE_EVENTS # <vm_pressure_events> 397 398options CONFIG_SECLUDED_MEMORY # <config_secluded_memory> 399 400# 401# Ledger features 402# 403options CONFIG_LEDGER_INTERVAL_MAX # <config_ledger_interval_max> 404 405# 406# I/O Scheduling 407# 408options CONFIG_IOSCHED # <config_iosched> 409 410# 411# Accounting for I/O usage 412# 413options CONFIG_IO_ACCOUNTING # <config_io_accounting> 414 415# 416# Enable inheritance of importance through specially marked mach ports and for file locks 417# For now debug is enabled wherever inheritance is 418# 419options IMPORTANCE_INHERITANCE # <importance_inheritance> 420options IMPORTANCE_TRACE # <importance_trace> 421options IMPORTANCE_DEBUG # <importance_debug> 422 423options CONFIG_TELEMETRY # <config_telemetry> 424 425options CONFIG_PROC_UUID_POLICY # <config_proc_uuid_policy> 426 427# 428# ECC data logging 429# 430options CONFIG_ECC_LOGGING # <config_ecc_logging> 431 432# 433# Application core dumps 434# 435options CONFIG_COREDUMP # <config_coredump> 436 437# 438# Vnode guards 439# 440options CONFIG_VNGUARD # <config_vnguard> 441 442# 443# Paravirtualization 444# 445options CONFIG_PV_TICKET # <config_pv_ticket> 446 447# 448# Enable extended VM address space and user heap segregation 449# 450options CONFIG_MAP_RANGES # <config_map_ranges> 451 452# 453# Ethernet (ARP) 454# 455pseudo-device ether # <networking,inet> 456# 457# Network loopback device 458# 459pseudo-device loop # <networking,inet> 460# 461# UCB pseudo terminal service 462# 463pseudo-device pty 512 init pty_init # <xlarge> 464pseudo-device pty 256 init pty_init # <large> 465pseudo-device pty 128 init pty_init # <medium> 466pseudo-device pty 48 init pty_init # <small> 467pseudo-device pty 16 init pty_init # <xsmall> 468pseudo-device pty 8 init pty_init # <bsmall> 469# 470# Cloning pseudo terminal service 471# 472pseudo-device ptmx 1 init ptmx_init 473 474# 475# memory device 476pseudo-device mdevdevice 1 init mdevinit 477 478# 479# 480# packet filter device 481# 482pseudo-device bpfilter 4 init bpf_init # <networking,inet> 483 484# 485# fsevents device 486pseudo-device fsevents 1 init fsevents_init # <config_fse> 487 488pseudo-device random 1 init random_init 489pseudo-device dtrace 1 init dtrace_init # <config_dtrace> 490pseudo-device helper 1 init helper_init # <config_dtrace> 491pseudo-device lockstat 1 init lockstat_init # <config_dtrace> 492pseudo-device lockprof 1 init lockprof_init # <config_dtrace> 493pseudo-device sdt 1 init sdt_init # <config_dtrace> 494pseudo-device systrace 1 init systrace_init # <config_dtrace> 495pseudo-device fbt 1 init fbt_init # <config_dtrace> 496pseudo-device profile_prvd 1 init profile_init # <config_dtrace> 497 498 499pseudo-device perfmon 1 init perfmon_dev_init # <config_perfmon> 500 501# 502# IOKit configuration options 503# 504 505options HIBERNATION # system hibernation # <hibernation> 506options IOKITCPP # C++ implementation # <iokitcpp> 507options IOKITSTATS # IOKit statistics # <iokitstats> 508options IOTRACKING # IOKit tracking # <iotracking> 509options CONFIG_SLEEP # # <config_sleep> 510options CONFIG_MAX_THREADS=500 # IOConfigThread threads 511options NO_KEXTD # <no_kextd> 512options NO_KERNEL_HID # <no_kernel_hid> 513 514# 515# Libkern configuration options 516# 517 518options LIBKERNCPP # C++ implementation # <libkerncpp> 519options CONFIG_BLOCKS # Blocks runtime # <config_blocks> 520options CONFIG_KXLD # kxld/runtime linking of kexts # <config_kxld> 521options CONFIG_KEC_FIPS # Kernel External Components for FIPS compliance (KEC_FIPS) # <config_kec_fips> 522 523# Note that when adding this config option to an architecture, one MUST 524# add the architecture to the preprocessor test at the beginning of 525# libkern/kmod/cplus_{start.c,stop.c}. 526options CONFIG_STATIC_CPPINIT # Static library initializes kext cpp runtime # <config_static_cppinit> 527 528# 529# libsa configuration options 530# 531 532# CONFIG_KEXT_BASEMENT - alloc post boot loaded kexts after prelinked kexts 533# 534options CONFIG_KEXT_BASEMENT # # <config_kext_basement> 535 536# 537# Persona Management 538# 539options CONFIG_PERSONAS # Persona management # <config_personas> 540options PERSONA_DEBUG # Persona debugging # <persona_debug> 541 542# 543# security configuration options 544# 545 546options CONFIG_MACF # Mandatory Access Control Framework # <config_macf> 547options CONFIG_MACF_SOCKET_SUBSET # MAC socket subest (no labels) # <config_macf> 548#options CONFIG_MACF_DEBUG # debug # <config_macf> 549 550options CONFIG_AUDIT # Kernel auditing # <config_audit> 551 552options CONFIG_ARCADE # Arcade validation support # <config_arcade> 553 554options CONFIG_SETUID # setuid/setgid support # <config_setuid> 555 556options CONFIG_SECURE_BSD_ROOT # secure BSD root # <config_secure_bsd_root> 557 558options CONFIG_KAS_INFO # kas_info support # <config_kas_info> 559 560options CONFIG_PROC_RESOURCE_LIMITS # Per process limits for resources like file descriptors and mach ports # <config_proc_resource_limits> 561 562# 563# MACH configuration options. 564# 565 566# 567# This defines configuration options that are normally used only during 568# kernel code development and debugging. They add run-time error checks or 569# statistics gathering, which will slow down the system 570# 571########################################################## 572# 573# MACH_ASSERT controls the assert() and ASSERT() macros, used to verify the 574# consistency of various algorithms in the kernel. The performance impact 575# of this option is significant. 576# 577options MACH_ASSERT # # <mach_assert> 578options MACH_VM_DEBUG # # <debug> 579options CONFIG_ZLEAKS # Live zone leak debugging # <zleaks> 580options CONFIG_VOUCHER_DEPRECATED # Enable deprecated voucher managers # <config_voucher_deprecated> 581 582# 583# CONFIG_DEBUGGER_FOR_ZONE_INFO restricts zone info so that it is only 584# available when the kernel is being debugged. 585# 586options CONFIG_DEBUGGER_FOR_ZONE_INFO # <debugger_for_zone_info> 587# 588# MACH_LDEBUG controls the internal consistency checks and 589# data gathering in the locking package. This also enables a debug-only 590# version of simple-locks on uniprocessor machines. The code size and 591# performance impact of this option is significant. 592# 593options MACH_LDEBUG # # <debug> 594 595# 596# configuration option for full, partial, or no kernel debug event tracing 597# 598options KDEBUG # kernel tracing # <kdebug> 599options IST_KDEBUG # limited tracing # <ist_kdebug> 600options NO_KDEBUG # no kernel tracing # <no_kdebug> 601 602# 603# CONFIG_DTRACE enables code needed to support DTrace. Currently this is 604# only used for delivery of traps/interrupts to DTrace. 605# 606options CONFIG_DTRACE # # <config_dtrace> 607 608options LOCK_STATS # # <lock_stats> 609 610# kernel performance tracing 611options KPERF # <kperf> 612options KPC # <kpc> 613 614 615options CONFIG_PERVASIVE_CPI # <config_pervasive_cpi> 616options CONFIG_PERVASIVE_ENERGY # <config_pervasive_energy> 617 618options CONFIG_IOTRACE # Physical IO tracing # <config_iotrace> 619 620# 621# CONFIG_PERFMON enables code to interface with performance monitoring hardware, 622# which count hardware events like cache misses and branch mispredicts. 623# 624options CONFIG_PERFMON # <config_perfmon> 625 626options PGO # <pgo> 627 628# DEVELOPMENT define for development builds 629options DEVELOPMENT # dev kernel # <development> 630 631# DEBUG kernel 632options DEBUG # general debugging code # <debug> 633options CONFIG_NONFATAL_ASSERTS # non fatal asserts # <softasserts> 634 635options MACH_BSD # BSD subsystem on top of Mach # <mach_bsd> 636options IOKIT # # <iokit> 637 638# 639# configurable kernel related resources (CONFIG_THREAD_MAX needs to stay in 640# sync with bsd/conf/MASTER until we fix the config system... todo XXX 641# 642options CONFIG_THREAD_MAX=2560 # <medium,large,xlarge> 643options CONFIG_THREAD_MAX=1536 # <small,xsmall> 644options CONFIG_THREAD_MAX=1024 # <bsmall> 645 646options CONFIG_TASK_MAX=1024 # <medium,large,xlarge> 647options CONFIG_TASK_MAX=768 # <small,> 648options CONFIG_TASK_MAX=512 # <xsmall,bsmall> 649 650# 651# Minimum zone map size: 115 MB 652# 653options CONFIG_ZONE_MAP_MIN=120586240 # <xsmall,bsmall,small,medium,large,xlarge> 654 655# vc_progress_white - make the progress gear white instead of black 656options CONFIG_VC_PROGRESS_WHITE # <vc_progress_white> 657 658# 659# Timeshare scheduler implementations 660# 661options CONFIG_SCHED_TRADITIONAL # <config_sched_traditional> 662options CONFIG_SCHED_PROTO # <config_sched_proto> 663options CONFIG_SCHED_GRRR # <config_sched_grrr> 664options CONFIG_SCHED_GRRR_CORE # <config_sched_grrr> 665options CONFIG_SCHED_MULTIQ # <config_sched_multiq> 666options CONFIG_SCHED_TIMESHARE_CORE # <config_sched_traditional,config_sched_multiq> 667options CONFIG_CLUTCH # <config_clutch> 668options CONFIG_SCHED_AUTO_JOIN # <config_sched_auto_join> 669options CONFIG_SCHED_RT_RESTRICT # <config_sched_rt_restrict> 670 671options CONFIG_SCHED_IDLE_IN_PLACE # <config_sched_idle_in_place> 672options CONFIG_SCHED_SFI # <config_sched_sfi> 673options CONFIG_PROB_GZALLOC # <pgzalloc> 674options CONFIG_SCHED_DEFERRED_AST # <config_sched_deferred_ast> 675 676options CONFIG_PREADOPT_TG # <config_preadopt_tg> 677options CONFIG_PREADOPT_TG_DEBUG # <config_preadopt_tg_debug> 678 679# Enable allocation of contiguous physical memory through vm_map_enter_cpm() 680options VM_CPM # <vm_cpm> 681 682# This is overridden by the board configuration's HAS_FAST_CNTVCT. 683options CONFIG_SKIP_PRECISE_USER_KERNEL_TIME # <config_skip_precise_user_kernel_time> 684 685# 686# Switch to disable cpu, wakeup and high memory watermark monitors 687# 688options CONFIG_NOMONITORS # <config_nomonitors> 689 690options MACH_KDP # KDP # <mach_kdp> 691options CONFIG_SERIAL_KDP # KDP over serial # <config_serial_kdp> 692options CONFIG_KDP_INTERACTIVE_DEBUGGING # <kdp_interactive_debugging> 693options CONFIG_KDP_COREDUMP_ENCRYPTION # Support for encrypting kernel coredumps # <config_kdp_coredump_encryption> 694 695options CONFIG_TASKWATCH 696options CONFIG_USER_NOTIFICATION # <config_user_notification> 697# 698# Kernel Power On Self Tests 699# 700options CONFIG_XNUPOST # <config_xnupost> 701 702# 703# Kernel proc reference instrumentation 704# 705options PROC_REF_DEBUG # <proc_ref_debug> 706 707# 708# Kernel Voucher Attr Manager for Activity Trace 709# 710options CONFIG_ATM # <config_atm> 711 712# Group related tasks together into coalitions 713options CONFIG_COALITIONS # <config_coalitions> 714 715# Enable support for sysdiagnose notifications 716options CONFIG_SYSDIAGNOSE # <config_sysdiagnose> 717 718# Configurable Security Restrictions 719options CONFIG_CSR # <config_csr> 720options CONFIG_CSR_FROM_DT # <config_csr_from_dt> 721 722# Enable collection of IO Compression statistics 723options CONFIG_IO_COMPRESSION_STATS # <config_io_compression_stats> 724 725# 726# Console options 727# 728options SERIAL_CONSOLE # bi-directional serial over UART 729options VIDEO_CONSOLE # uni-directional output over framebuffer 730 731# 732# Syscall options 733# 734options CONFIG_REQUIRES_U32_MUNGING # incoming U32 argument structures must be munged to match U64 # <config_requires_u32_munging> 735 736# 737# copyout() instrumentation 738# 739options COPYOUT_SHIM # Shim for copyout memory analysis via kext #<copyout_shim> 740 741# 742# Enable hardware correlation of mach absolute time 743# across intel/arm boundary 744options CONFIG_MACH_BRIDGE_SEND_TIME # # <config_mach_bridge_send_time> 745options CONFIG_MACH_BRIDGE_RECV_TIME # # <config_mach_bridge_recv_time> 746 747options CONFIG_QUIESCE_COUNTER # Support for _COMM_PAGE_CPU_QUIESCENT_COUNTER # <config_quiesce_counter> 748options CONFIG_ARM_PFZ # Support for PFZ on ARM # <config_arm_pfz> 749 750# 751# Sanitizers 752# 753options CONFIG_KASAN # <config_kasan> 754options CONFIG_UBSAN # <config_ubsan> 755 756options CONFIG_KCOV # <config_kcov> 757options CONFIG_KSANCOV # <config_ksancov> 758options CONFIG_STKSZ # <config_stksz> 759 760# dark boot support 761options CONFIG_DARKBOOT # <config_darkboot> 762 763# support for tracking service port labels for stackshots/debugging 764options CONFIG_SERVICE_PORT_INFO # <config_service_port_info> 765 766# support for processes delaying idle sleep for pending IO 767options CONFIG_DELAY_IDLE_SLEEP # <config_delay_idle_sleep> 768 769# support for storing a 64-bit user supplied value in the proc structure 770options CONFIG_PROC_UDATA_STORAGE # <config_proc_udata_storage> 771 772pseudo-device ksancov 1 init ksancov_init_dev # <config_ksancov> 773 774# Debug instrumentation for statistics and catching of code that 775# leaves interrupts masked or preemption disabled for an excessive 776# period of time. 777options SCHED_HYGIENE_DEBUG # <sched_hygiene_debug> 778 779# support for system call rejection/tracing 780options CONFIG_DEBUG_SYSCALL_REJECTION # <config_debug_syscall_rejection> 781