xnu-2050.7.9.tar.gz

[apple/xnu.git] / osfmk / conf / MASTER

#
# Mach Operating System
# Copyright (c) 1986 Carnegie-Mellon University
# 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 
#
#######################################################################
#
# Basic compilation options.
#
# The MACH ident is passed to every kernel file compilation as -DMACH.
#       This is useful in order to #ifdef code that is intended to be used in
#       a MACH kernel.
#
ident           MACH
##############################################################################
#
# 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_KERNEL
options         MACH_PAGEMAP    #       <mach_pagemap>
options         MACH_LOAD
options         MACH_RT
options         TASK_SWAPPER    #       <task_swapper_disabled>
pseudo-device   test_device     1
options         ADVISORY_PAGEOUT
##########################################################
#
# conf/config.debug
#
# 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      #               #
options         MACH_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>

#
options         ZONE_ALIAS_ADDR #               # <zone_alias_addr>


#
# 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>

# MACH_COUNTERS enables code that handles various counters in the system.
# 
options         MACH_COUNTERS   #               # <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_CO_INFO controls the collection of callout statistics. This
#       information is retrieved via a mach_debug message, or though
#       /dev/kmem. The runtime impact of the option is minimal.
#
#options        MACH_CO_INFO
#
# 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
#
# MACH_SCTIMES enables optional code that can be used to measure the
#       execution overhead of performing Mach traps with 1 through 6
#       arguments.
#
#options        MACH_SCTIMES
#
# MACH_COUNTERS enables various code-path statistics. Most of these
#       are accessed through the debugger.
#
options         MACH_COUNTERS           #               # <stats>

#
#  configuration option for including cypto code
#
options         CRYPTO                  # <crypto>

# HIBERNATION - include hibernation code
#
options         HIBERNATION             #               # <hibernation>

# CONFIG_SLEEP - include sleep power state code
#
options         CONFIG_SLEEP            #               # <config_sleep>

# CONFIG_KEXT_BASEMENT - alloc post boot loaded kexts after prelinked kexts
#
options         CONFIG_KEXT_BASEMENT            #               # <config_kext_basement>


#
#  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,xsmall>
options   CONFIG_TASK_MAX=512                   # <bsmall>

options   CONFIG_ZONE_MAP_MIN=12582912  # <medium,large,xlarge>
options   CONFIG_ZONE_MAP_MIN=6291456   # <small,xsmall>
options   CONFIG_ZONE_MAP_MIN=1048576   # <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>

#
#  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>

# configurable kernel - general switch to say we are building for an
# embedded device
#
options   CONFIG_EMBEDDED                       # <config_embedded>

# only execute signed code. Hang this off config_embedded since there's
# nothing more appropriate right now
#
options   CONFIG_ENFORCE_SIGNED_CODE            # <config_embedded>

# support dynamic signing of code
#
options         CONFIG_DYNAMIC_CODE_SIGNING     # <dynamic_codesigning>

# vc_progress_white - make the progress gear white instead of black
options   CONFIG_VC_PROGRESS_WHITE              # <vc_progress_white>

# secure_kernel - secure kernel from user programs
options         SECURE_KERNEL           # <secure_kernel>

#
# code decryption... used on embedded for app protection
# must be set in all the bsd/conf and osfmk/conf MASTER files
#
options         CONFIG_CODE_DECRYPTION  # <config_embedded>

#
# Context switched counters 
#
options         CONFIG_COUNTERS                 # <config_counters>

#
# 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_FIXEDPRIORITY      # <config_sched_fixedpriority>
options         CONFIG_SCHED_GRRR_CORE          # <config_sched_grrr,config_sched_fixedpriority>

options         CONFIG_SCHED_IDLE_IN_PLACE              # <config_sched_idle_in_place>
options         CONFIG_GZALLOC                  # <config_gzalloc>
#
# enable per-process memory priority tracking
#
options         CONFIG_MEMORYSTATUS                             # <memorystatus>

#
# enable jetsam - used on embedded
#
options         CONFIG_JETSAM                           # <jetsam>

#
# enable freezing of suspended processes - used on embedded
#
options         CONFIG_FREEZE                                   # <freeze>

options         CHECK_CS_VALIDATION_BITMAP      # <config_cs_validation_bitmap>

#
# Enable dispatch of memory pressure events from the vm_pageout_garbage_collect thread
#
options         VM_PRESSURE_EVENTS              # <vm_pressure_events>

# 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>