# # Mach Operating System # Copyright (c) 1986 Carnegie-Mellon University # Copyright 2001-2014 Apple Inc. # # All rights reserved. The CMU software License Agreement # specifies the terms and conditions for use and redistribution. # ####################################################################### # # Master machine independent configuration file. # # Specific configuration files are created based on this and # the machine specific master file using the doconf script. # # Any changes to the master configuration files will affect all # other configuration files based upon it. # ####################################################################### # # To build a configuration, execute "doconf <configuration>." # Configurations are specified in the "Configurations:" section # of the MASTER and MASTER.* files as follows: # # <configuration> = [ <attribute0> <attribute1> ... <attributeN> ] # # Lines in the MASTER and MASTER.* files are selected based on # the attribute selector list, found in a comment at the end of # the line. This is a list of attributes separated by commas. # The "!" operator selects the line if none of the attributes are # specified. # # For example: # # <foo,bar> selects a line if "foo" or "bar" are specified. # <!foo,bar> selects a line if neither "foo" nor "bar" is # specified. # # Lines with no attributes specified are selected for all # configurations. # ####################################################################### # # SYSTEM SIZE CONFIGURATION (select exactly one) # # xlarge = extra large scale system configuration # large = large scale system configuration # medium = medium scale system configuration # small = small scale system configuration # xsmall = extra small scale system configuration # bsmall = special extra small scale system configuration # ####################################################################### # options INET # # <inet> options HW_AST # Hardware ast support # <hw_ast> options HW_FOOTPRINT # Cache footprint support # <hw_foot> options MACH # Standard Mach features # <mach> options MACH_COMPAT # Vendor syscall compatibility # <mach> options MACH_FASTLINK # Fast symbolic links options MACH_HOST # Mach host (resource alloc.) # <host> options MACH_IPC_COMPAT # Enable old IPC interface # <ipc_compat> options MACH_IPC_TEST # Testing code/printfs # <ipc_test> options MACH_FLIPC # Fast-Local IPC # <mach_flipc> options MACH_NP # Mach IPC support # <np> options MACH_NBC # No buffer cache # <nbc> options MACH_NET # Fast network access # <mach_net> options MACH_XP # external pager support # <xp> options NO_DIRECT_RPC # for untyped mig servers # options LOOP # loopback support # <loop> options VLAN # # <vlan> options BOND # # <bond> options AH_ALL_CRYPTO # AH all crypto algs # <ah_all_crypto> options IPCOMP_ZLIB # IP compression using zlib # <ipcomp_zlib> options PF # Packet Filter # <pf> options PF_ALTQ # PF ALTQ (Alternate Queueing) # <pf_altq> options PF_ECN # PF use ECN marking # <pf_ecn> options PFLOG # PF log interface # <pflog> options PKTSCHED_CBQ # CBQ packet scheduler # <pktsched_cbq> options PKTSCHED_HFSC # H-FSC packet scheduler # <pktsched_hfsc> options PKTSCHED_PRIQ # PRIQ packet scheduler # <pktsched_priq> options PKTSCHED_FAIRQ # FAIRQ packet scheduler # <pktsched_fairq> options MEASURE_BW # interface bandwidth measurement # <measure_bw> options CLASSQ_BLUE # BLUE queueing algorithm # <classq_blue> options CLASSQ_RED # RED queueing algorithm # <classq_red> options CLASSQ_RIO # RIO queueing algorithm # <classq_rio> options DUMMYNET # dummynet support # <dummynet> options TRAFFIC_MGT # traffic management support # <traffic_mgt> options MULTICAST # Internet Protocol Class-D $ options TCPDEBUG # TCP debug # <tcpdebug> options TCP_DROP_SYNFIN # Drop TCP packets with SYN+FIN set # <tcpdrop_synfin> options ICMP_BANDLIM # ICMP bandwidth limiting sysctl options IFNET_INPUT_SANITY_CHK # allow dlil/ifnet input sanity check # <ifnet_input_chk> options MULTIPATH # Multipath domain # <multipath> options MPTCP # Multipath TCP # <mptcp> options SYSV_SEM # SVID semaphores # <sysv_sem> options SYSV_MSG # SVID messages # <sysv_msg> options SYSV_SHM # SVID shared mem # <sysv_shm> options PSYNCH # pthread synch # <psynch> options FLOW_DIVERT # <flow_divert> options NECP # <necp> options CONTENT_FILTER # # <content_filter> options PACKET_MANGLER # # <packet_mangler> # secure_kernel - secure kernel from user programs options SECURE_KERNEL # <secure_kernel> options OLD_SEMWAIT_SIGNAL # old semwait_signal handler # # 4.4 general kernel # options SOCKETS # socket support # <inet, inet6> options DIAGNOSTIC # diagnostics # <diagnostic> options GPROF # build profiling # <profile> options PROFILE # kernel profiling # <profile> options SENDFILE # sendfile # <sendfile> options NETWORKING # networking layer # <inet, inet6> options CONFIG_FSE # file system events # <config_fse> options CONFIG_IMAGEBOOT # local image boot # <config_imageboot> options CONFIG_MBUF_JUMBO # jumbo cluster pool # <config_mbuf_jumbo> options CONFIG_WORKQUEUE # <config_workqueue> # # 4.4 filesystems # options MOCKFS # Boot from an executable # <mockfs> options FIFO # fifo support # <fifo> options FDESC # fdesc_fs support # <fdesc> options DEVFS # devfs support # <devfs> options ROUTEFS # routefs support # <routefs> options NULLFS # nullfs support # <nullfs> options FS_COMPRESSION # fs compression # <fs_compression> options CONFIG_DEV_KMEM # /dev/kmem device for reading KVA # <config_dev_kmem> # # file system features # options QUOTA # file system quotas # <quota> options NAMEDSTREAMS # named stream vnop support # <namedstreams> options CONFIG_APPLEDOUBLE # apple double support # <config_appledouble> options CONFIG_VOLFS # volfs path support (legacy) # <config_volfs> options CONFIG_IMGSRC_ACCESS # source of imageboot dmg # <config_imgsrc_access> options CONFIG_TRIGGERS # trigger vnodes # <config_triggers> options CONFIG_EXT_RESOLVER # e.g. memberd # <config_ext_resolver> options CONFIG_SEARCHFS # searchfs syscall support # <config_searchfs> options CONFIG_MNT_SUID # allow suid binaries # <config_mnt_suid> # # NFS support # options NFSCLIENT # Be an NFS client # <nfsclient> options NFSSERVER # Be an NFS server # <nfsserver> # # Machine Independent Apple Features # profile # build a profiling kernel # <profile> # # IPv6 Support # options "INET6" # kernel IPv6 Support # <inet6> options IPV6SEND # Secure Neighbor Discovery # <ipv6send> options IPSEC # IP security # <ipsec> options IPSEC_ESP # IP security # <ipsec> options "IPV6FIREWALL" # IPv6 Firewall Feature # <ipv6firewall> options "IPV6FIREWALL_DEFAULT_TO_ACCEPT" #IPv6 Firewall Feature # <ipv6firewall> #options "IPV6FIREWALL_VERBOSE" #IPv6 Firewall Feature # <ipv6firewall> pseudo-device gif 1 # <gif> pseudo-device dummy 2 # <dummy> pseudo-device stf 1 # <stf> options CRYPTO # <ipsec,crypto> options CRYPTO_SHA2 # <crypto_sha2> options ENCRYPTED_SWAP # <encrypted_swap> options ZLIB # inflate/deflate support # <zlib> options IF_BRIDGE # <if_bridge> # # configurable kernel event related resources # options CONFIG_KN_HASHSIZE=64 # <medium,large,xlarge> options CONFIG_KN_HASHSIZE=48 # <small,xsmall> options CONFIG_KN_HASHSIZE=20 # <bsmall> # # configurable vfs related resources # CONFIG_VNODES - used to pre allocate vnode related resources # CONFIG_VNODE_FREE_MIN - mininmum number of free vnodes # CONFIG_NC_HASH - name cache hash table allocation # CONFIG_VFS_NAMES - name strings # # 263168 magic number for medium CONFIG_VNODES is based on memory # Number vnodes is (memsize/64k) + 1024 # This is the calculation that is used by launchd in tiger # we are clipping the max based on 16G # ie ((16*1024*1024*1024)/(64 *1024)) + 1024 = 263168; options CONFIG_VNODES=263168 # <large,xlarge> options CONFIG_VNODES=263168 # <medium> options CONFIG_VNODES=10240 # <small> options CONFIG_VNODES=750 # <bsmall> options CONFIG_VNODE_FREE_MIN=500 # <large,xlarge> options CONFIG_VNODE_FREE_MIN=300 # <medium> options CONFIG_VNODE_FREE_MIN=200 # <small> options CONFIG_VNODE_FREE_MIN=100 # <xsmall> options CONFIG_VNODE_FREE_MIN=75 # <bsmall> options CONFIG_NC_HASH=5120 # <large,xlarge> options CONFIG_NC_HASH=4096 # <medium> options CONFIG_NC_HASH=2048 # <small,xsmall> options CONFIG_NC_HASH=1024 # <bsmall> options CONFIG_VFS_NAMES=5120 # <large,xlarge> options CONFIG_VFS_NAMES=4096 # <medium> options CONFIG_VFS_NAMES=3072 # <small,xsmall> options CONFIG_VFS_NAMES=2048 # <bsmall> options CONFIG_MAX_CLUSTERS=8 # <xlarge,large,medium> options CONFIG_MAX_CLUSTERS=4 # <small,xsmall,bsmall> # # configurable options for minumum number of buffers for kernel memory # options CONFIG_MIN_NBUF=256 # <medium,large,xlarge> options CONFIG_MIN_NBUF=128 # <small> options CONFIG_MIN_NBUF=80 # <xsmall> options CONFIG_MIN_NBUF=64 # <bsmall> options CONFIG_MIN_NIOBUF=128 # <medium,large,xlarge> options CONFIG_MIN_NIOBUF=64 # <xsmall,small> options CONFIG_MIN_NIOBUF=32 # <bsmall> # # set maximum space used for packet buffers # options CONFIG_NMBCLUSTERS="((1024 * 1024) / MCLBYTES)" # <large,xlarge> options CONFIG_NMBCLUSTERS="((1024 * 512) / MCLBYTES)" # <medium> options CONFIG_NMBCLUSTERS="((1024 * 256) / MCLBYTES)" # <bsmall,xsmall,small> # # Configure size of TCP hash table # options CONFIG_TCBHASHSIZE=4096 # <medium,large,xlarge> options CONFIG_TCBHASHSIZE=128 # <xsmall,small,bsmall> # # Configure bandwidth limiting sysctl # options CONFIG_ICMP_BANDLIM=250 # <medium,large,xlarge> options CONFIG_ICMP_BANDLIM=50 # <xsmall,small,bsmall> # # configurable async IO options # CONFIG_AIO_MAX - system wide limit of async IO requests. # CONFIG_AIO_PROCESS_MAX - process limit of async IO requests. # CONFIG_AIO_THREAD_COUNT - number of async IO worker threads created. # options CONFIG_AIO_MAX=360 # <xlarge> options CONFIG_AIO_MAX=180 # <large> options CONFIG_AIO_MAX=90 # <medium> options CONFIG_AIO_MAX=45 # <small> options CONFIG_AIO_MAX=20 # <xsmall> options CONFIG_AIO_MAX=10 # <bsmall> options CONFIG_AIO_PROCESS_MAX=64 # <xlarge> options CONFIG_AIO_PROCESS_MAX=32 # <large> options CONFIG_AIO_PROCESS_MAX=16 # <medium> options CONFIG_AIO_PROCESS_MAX=12 # <small> options CONFIG_AIO_PROCESS_MAX=8 # <xsmall> options CONFIG_AIO_PROCESS_MAX=4 # <bsmall> options CONFIG_AIO_THREAD_COUNT=16 # <xlarge> options CONFIG_AIO_THREAD_COUNT=8 # <large> options CONFIG_AIO_THREAD_COUNT=4 # <medium> options CONFIG_AIO_THREAD_COUNT=3 # <small> options CONFIG_AIO_THREAD_COUNT=2 # <xsmall,bsmall> options CONFIG_MAXVIFS=32 # <medium,large,xlarge> options CONFIG_MAXVIFS=16 # <small,xsmall> options CONFIG_MAXVIFS=2 # <bsmall> options CONFIG_MFCTBLSIZ=256 # <medium,large,xlarge> options CONFIG_MFCTBLSIZ=128 # <small,xsmall> options CONFIG_MFCTBLSIZ=16 # <bsmall> # # configurable kernel message buffer size # options CONFIG_MSG_BSIZE=4096 # <bsmall,small,xsmall> options CONFIG_MSG_BSIZE=16384 # <medium,large,xlarge> # # maximum size of the per-process Mach IPC table # options CONFIG_IPC_TABLE_ENTRIES_STEPS=64 # 137898 entries # <bsmall,small,xsmall> options CONFIG_IPC_TABLE_ENTRIES_STEPS=256 # 300714 entries # <medium,large,xlarge> # # configurable kernel - use these options to strip strings from panic # and printf calls. # no_panic_str - saves around 50K of kernel footprint. # no_printf_str - saves around 45K of kernel footprint. # options CONFIG_NO_PANIC_STRINGS # <no_panic_str> options CONFIG_NO_PRINTF_STRINGS # <no_printf_str> options CONFIG_NO_KPRINTF_STRINGS # <no_kprintf_str> # # use finer-grained lock groups for the proc subsystem # options CONFIG_FINE_LOCK_GROUPS # <medium,large,xlarge> # support dynamic signing of code # options CONFIG_DYNAMIC_CODE_SIGNING # <dynamic_codesigning> # enforce library validation on all processes. # options CONFIG_ENFORCE_LIBRARY_VALIDATION # <config_library_validation> # # code decryption... used on embedded for app protection, DSMOS on desktop # options CONFIG_CODE_DECRYPTION # <config_code_decryption> # # User Content Protection, used on embedded # options CONFIG_PROTECT # <config_protect> # # enable per-process memory priority tracking # options CONFIG_MEMORYSTATUS # <memorystatus> # # enable jetsam - used on embedded # options CONFIG_JETSAM # <jetsam> # # enable new link table implementation stats/debugging # (adds mesaureable overhead) # options CONFIG_LTABLE_STATS # <config_ltable_stats> options CONFIG_LTABLE_DEBUG # <config_ltable_debug> # # enable new wait queue implementation stats / debugging # options CONFIG_WAITQ_STATS # <config_waitq_stats> options CONFIG_WAITQ_DEBUG # <config_waitq_debug> # # enable freezing of suspended processes - used on embedded # options CONFIG_FREEZE # <freeze> options CHECK_CS_VALIDATION_BITMAP # <config_cs_validation_bitmap> # # enable detectiion of file cache thrashing - used on platforms with # dynamic VM compression enabled # options CONFIG_PHANTOM_CACHE # <phantom_cache> # # memory pressure event support # options VM_PRESSURE_EVENTS # <vm_pressure_events> options CONFIG_SECLUDED_MEMORY # <config_secluded_memory> options CONFIG_BACKGROUND_QUEUE # <config_background_queue> # # I/O Scheduling # options CONFIG_IOSCHED # <config_iosched> # # Accounting for I/O usage # options CONFIG_IO_ACCOUNTING # <config_io_accounting> # # Enable inheritance of importance through specially marked mach ports and for file locks # For now debug is enabled wherever inheritance is # options IMPORTANCE_INHERITANCE # <importance_inheritance> options IMPORTANCE_DEBUG # <importance_inheritance> options CONFIG_TELEMETRY # <config_telemetry> options CONFIG_PROC_UUID_POLICY # <config_proc_uuid_policy> # # ECC data logging # options CONFIG_ECC_LOGGING # <config_ecc_logging> # # Application core dumps # options CONFIG_COREDUMP # <config_coredump> # # Ethernet (ARP) # pseudo-device ether # <networking,inet,inet6> # # Network loopback device # pseudo-device loop # <networking,inet,inet6> # # UCB pseudo terminal service # pseudo-device pty 512 init pty_init # <xlarge> pseudo-device pty 256 init pty_init # <large> pseudo-device pty 128 init pty_init # <medium> pseudo-device pty 48 init pty_init # <small> pseudo-device pty 16 init pty_init # <xsmall> pseudo-device pty 8 init pty_init # <bsmall> # # Cloning pseudo terminal service # pseudo-device ptmx 1 init ptmx_init # # vnode device # pseudo-device vndevice 4 init vndevice_init # <development,debug> # # memory device pseudo-device mdevdevice 1 init mdevinit # # # packet filter device # pseudo-device bpfilter 4 init bpf_init # <networking,inet,inet6> # # fsevents device pseudo-device fsevents 1 init fsevents_init # <config_fse> pseudo-device random 1 init random_init pseudo-device dtrace 1 init dtrace_init # <config_dtrace> pseudo-device helper 1 init helper_init # <config_dtrace> pseudo-device lockstat 1 init lockstat_init # <config_dtrace> pseudo-device sdt 1 init sdt_init # <config_dtrace> pseudo-device systrace 1 init systrace_init # <config_dtrace> pseudo-device fbt 1 init fbt_init # <config_dtrace> pseudo-device profile_prvd 1 init profile_init # <config_dtrace> # # IOKit configuration options # options HIBERNATION # system hibernation # <hibernation> options IOKITCPP # C++ implementation # <iokitcpp> options IOKITSTATS # IOKit statistics # <iokitstats> options IOTRACKING # IOKit tracking # <iotracking> options CONFIG_SLEEP # # <config_sleep> options CONFIG_MAX_THREADS=64 # IOConfigThread threads options NO_KEXTD # <no_kextd> options NO_KERNEL_HID # <no_kernel_hid> # # Libkern configuration options # options LIBKERNCPP # C++ implementation # <libkerncpp> options CONFIG_KXLD # kxld/runtime linking of kexts # <config_kxld> options CONFIG_KEC_FIPS # Kernel External Components for FIPS compliance (KEC_FIPS) # <config_kec_fips> # Note that when adding this config option to an architecture, one MUST # add the architecture to the preprocessor test at the beginning of # libkern/kmod/cplus_{start.c,stop.c}. options CONFIG_STATIC_CPPINIT # Static library initializes kext cpp runtime # <config_static_cppinit> # # libsa configuration options # # CONFIG_KEXT_BASEMENT - alloc post boot loaded kexts after prelinked kexts # options CONFIG_KEXT_BASEMENT # # <config_kext_basement> # # Persona Management # options CONFIG_PERSONAS # Persona management # <config_personas> options PERSONA_DEBUG # Persona debugging # <persona_debug> # # security configuration options # options CONFIG_MACF # Mandatory Access Control Framework # <config_macf> options CONFIG_MACF_SOCKET_SUBSET # MAC socket subest (no labels) # <config_macf> #options CONFIG_MACF_SOCKET # MAC socket labels # <config_macf> #options CONFIG_MACF_NET # mbuf # <config_macf> #options CONFIG_MACF_DEBUG # debug # <config_macf> options CONFIG_AUDIT # Kernel auditing # <config_audit> # # MACH configuration options. # # TASK_SWAPPER enables code that manages demand for physical memory by # forcibly suspending tasks when the demand exceeds supply. This # option should be on. # options MACH_RT options TASK_SWAPPER # <task_swapper_disabled> # # This defines configuration options that are normally used only during # kernel code development and debugging. They add run-time error checks or # statistics gathering, which will slow down the system # ########################################################## # # MACH_ASSERT controls the assert() and ASSERT() macros, used to verify the # consistency of various algorithms in the kernel. The performance impact # of this option is significant. # options MACH_ASSERT # # <mach_assert> # # MACH_DEBUG enables the mach_debug_server, a message interface used to # retrieve or control various statistics. This interface may expose data # structures that would not normally be allowed outside the kernel, and # MUST NOT be enabled on a released configuration. # Other options here enable information retrieval for specific subsystems # options MACH_DEBUG # IPC debugging interface # <mdebug> options MACH_IPC_DEBUG # Enable IPC debugging calls # <ipc_debug> options MACH_VM_DEBUG # # <debug> # # MACH_MP_DEBUG control the possible dead locks that may occur by controlling # that IPL level has been raised down to SPL0 after some calls to # hardclock device driver. # options MACH_MP_DEBUG # # <debug> # # ZONE_DEBUG keeps track of all zalloc()ed elements to perform further # operations on each element. # options ZONE_DEBUG # # <debug> options CONFIG_ZLEAKS # Live zone leak debugging # <zleaks> # # CONFIG_TASK_ZONE_INFO allows per-task zone information to be extracted # Primarily useful for xnu debug and development. # options CONFIG_TASK_ZONE_INFO # <task_zone_info> # # CONFIG_DEBUGGER_FOR_ZONE_INFO restricts zone info so that it is only # available when the kernel is being debugged. # options CONFIG_DEBUGGER_FOR_ZONE_INFO # <debugger_for_zone_info> # # XPR_DEBUG enables the gathering of data through the XPR macros inserted # into various subsystems. This option is normally only enabled for # specific performance or behavior studies, as the overhead in both # code and data space is large. The data is normally retrieved through # the kernel debugger (kdb) or by reading /dev/kmem. # options XPR_DEBUG # # <debug> # # MACH_LDEBUG controls the internal consistency checks and # data gathering in the locking package. This also enables a debug-only # version of simple-locks on uniprocessor machines. The code size and # performance impact of this option is significant. # options MACH_LDEBUG # # <debug> # # configuration option for full, partial, or no kernel debug event tracing # options KDEBUG # kernel tracing # <kdebug> options IST_KDEBUG # limited tracing # <ist_kdebug> options NO_KDEBUG # no kernel tracing # <no_kdebug> # # CONFIG_DTRACE enables code needed to support DTrace. Currently this is # only used for delivery of traps/interrupts to DTrace. # options CONFIG_DTRACE # # <config_dtrace> # kernel performance tracing options KPERF # <kperf> options KPC # <kpc> options PGO # <pgo> # MACH_COUNTERS enables code that handles various counters in the system. # options MACH_COUNTERS # # <debug> # DEVELOPMENT define for development builds options DEVELOPMENT # dev kernel # <development> # DEBUG kernel options DEBUG # general debugging code # <debug> ########################################################## # # This defines configuration options that are normally used only during # kernel code development and performance characterization. They add run-time # statistics gathering, which will slow down the system, # ########################################################## # # MACH_IPC_STATS controls the collection of statistics in the MACH IPC # subsystem. # #options MACH_IPC_STATS # # MACH_CLUSTER_STATS controls the collection of various statistics concerning # the effectiveness and behavior of the clustered pageout and pagein # code. # #options MACH_CLUSTER_STATS options MACH_BSD # BSD subsystem on top of Mach # <mach_bsd> options IOKIT # # <iokit> # # configurable kernel related resources (CONFIG_THREAD_MAX needs to stay in # sync with bsd/conf/MASTER until we fix the config system... todo XXX # options CONFIG_THREAD_MAX=2560 # <medium,large,xlarge> options CONFIG_THREAD_MAX=1536 # <small,xsmall> options CONFIG_THREAD_MAX=1024 # <bsmall> options CONFIG_TASK_MAX=1024 # <medium,large,xlarge> options CONFIG_TASK_MAX=768 # <small,> options CONFIG_TASK_MAX=512 # <xsmall,bsmall> options CONFIG_ZONE_MAP_MIN=12582912 # <medium,large,xlarge> options CONFIG_ZONE_MAP_MIN=6291456 # <small> options CONFIG_ZONE_MAP_MIN=1048576 # <xsmall,bsmall> # Sizes must be a power of two for the zhash to # be able to just mask off bits instead of mod options CONFIG_ZLEAK_ALLOCATION_MAP_NUM=16384 #<medium,large,xlarge> options CONFIG_ZLEAK_ALLOCATION_MAP_NUM=8192 #<small,xsmall,bsmall> options CONFIG_ZLEAK_TRACE_MAP_NUM=8192 #<medium,large,xlarge> options CONFIG_ZLEAK_TRACE_MAP_NUM=4096 #<small,xsmall,bsmall> # vc_progress_white - make the progress gear white instead of black options CONFIG_VC_PROGRESS_WHITE # <vc_progress_white> # # Timeshare scheduler implementations # options CONFIG_SCHED_TRADITIONAL # <config_sched_traditional> options CONFIG_SCHED_PROTO # <config_sched_proto> options CONFIG_SCHED_GRRR # <config_sched_grrr> options CONFIG_SCHED_GRRR_CORE # <config_sched_grrr> options CONFIG_SCHED_MULTIQ # <config_sched_multiq> options CONFIG_SCHED_TIMESHARE_CORE # <config_sched_traditional,config_sched_multiq> options CONFIG_SCHED_IDLE_IN_PLACE # <config_sched_idle_in_place> options CONFIG_SCHED_SFI # <config_sched_sfi> options CONFIG_GZALLOC # <config_gzalloc> options CONFIG_SCHED_DEFERRED_AST # <config_sched_deferred_ast> # Enable allocation of contiguous physical memory through vm_map_enter_cpm() options VM_CPM # <vm_cpm> options CONFIG_SKIP_PRECISE_USER_KERNEL_TIME # <config_skip_precise_user_kernel_time> # # Switch to disable cpu, wakeup and high memory watermark monitors # options CONFIG_NOMONITORS # <config_nomonitors> options MACH_KDP # KDP # <mach_kdp> options CONFIG_SERIAL_KDP # KDP over serial # <config_serial_kdp> options CONFIG_KDP_INTERACTIVE_DEBUGGING # <kdp_interactive_debugging> # # Kernel Power On Self Tests # options CONFIG_XNUPOST # <config_xnupost> # # Kernel proc reference instrumentation # options PROC_REF_DEBUG # <proc_ref_debug> # # Kernel OS reason debug instrumentation # options OS_REASON_DEBUG # <os_reason_debug> # # Kernel Voucher Attr Manager for Activity Trace # options CONFIG_ATM # <config_atm> # # Kernel Voucher Attr Manager for BANK # options CONFIG_BANK # <config_bank> # Group related tasks together into coalitions options CONFIG_COALITIONS # <config_coalitions> # Enable support for sysdiagnose notifications options CONFIG_SYSDIAGNOSE # <config_sysdiagnose> # Configurable Security Restrictions options CONFIG_CSR # <config_csr> # # Console options # options SERIAL_CONSOLE # bi-directional serial over UART options VIDEO_CONSOLE # uni-directional output over framebuffer # # Syscall options # options CONFIG_REQUIRES_U32_MUNGING # incoming U32 argument structures must be munged to match U64 # <config_requires_u32_munging>