1# 2# MINIMAL -- Mostly Minimal kernel configuration file for FreeBSD/i386 3# 4# Many definitions of minimal are possible. The one this file follows is 5# GENERIC, minus all functionality that can be replaced by loading kernel 6# modules. 7# 8# Exceptions: 9# o While UFS is buildable as a module, the current module lacks 10# some features (ACL, GJOURNAL) that GENERIC includes. 11# o acpi as a module has been reported flakey and not well tested, so 12# is included in the kernel. 13# o (non-loaded) random is included due to uncertainty... 14# o Many networking things are included 15# 16# For now, please run changes to these list past imp@freebsd.org 17# 18# For more information on this file, please read the config(5) manual page, 19# and/or the handbook section on Kernel Configuration Files: 20# 21# https://docs.freebsd.org/en/books/handbook/kernelconfig/#kernelconfig-config 22# 23# The handbook is also available locally in /usr/share/doc/handbook 24# if you've installed the doc distribution, otherwise always see the 25# FreeBSD World Wide Web server (https://www.FreeBSD.org/) for the 26# latest information. 27# 28# An exhaustive list of options and more detailed explanations of the 29# device lines is also present in the ../../conf/NOTES and NOTES files. 30# If you are in doubt as to the purpose or necessity of a line, check first 31# in NOTES. 32# 33# $FreeBSD$ 34 35cpu I486_CPU 36cpu I586_CPU 37cpu I686_CPU 38ident MINIMAL 39 40makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols 41makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support 42 43options SCHED_ULE # ULE scheduler 44options PREEMPTION # Enable kernel thread preemption 45options INET # InterNETworking 46options INET6 # IPv6 communications protocols 47options TCP_OFFLOAD # TCP offload 48options SCTP_SUPPORT # Allow kldload of SCTP 49options FFS # Berkeley Fast Filesystem 50options SOFTUPDATES # Enable FFS soft updates support 51options UFS_ACL # Support for access control lists 52options UFS_DIRHASH # Improve performance on big directories 53options UFS_GJOURNAL # Enable gjournal-based UFS journaling 54options QUOTA # Enable disk quotas for UFS 55options MD_ROOT # MD is a potential root device 56options COMPAT_FREEBSD4 # Compatible with FreeBSD4 57options COMPAT_FREEBSD5 # Compatible with FreeBSD5 58options COMPAT_FREEBSD6 # Compatible with FreeBSD6 59options COMPAT_FREEBSD7 # Compatible with FreeBSD7 60options COMPAT_FREEBSD9 # Compatible with FreeBSD9 61options COMPAT_FREEBSD10 # Compatible with FreeBSD10 62options COMPAT_FREEBSD11 # Compatible with FreeBSD11 63options COMPAT_FREEBSD12 # Compatible with FreeBSD12 64options COMPAT_FREEBSD13 # Compatible with FreeBSD13 65options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI 66options KTRACE # ktrace(1) support 67options STACK # stack(9) support 68options SYSVSHM # SYSV-style shared memory 69options SYSVMSG # SYSV-style message queues 70options SYSVSEM # SYSV-style semaphores 71options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions 72options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed. 73options KBD_INSTALL_CDEV # install a CDEV entry in /dev 74options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4) 75options AUDIT # Security event auditing 76options CAPABILITY_MODE # Capsicum capability mode 77options CAPABILITIES # Capsicum capabilities 78options MAC # TrustedBSD MAC Framework 79options KDTRACE_FRAME # Ensure frames are compiled in 80options KDTRACE_HOOKS # Kernel DTrace hooks 81options DDB_CTF # Kernel ELF linker loads CTF data 82options INCLUDE_CONFIG_FILE # Include this file in kernel 83 84# Debugging support. Always need this: 85options KDB # Enable kernel debugger support. 86options KDB_TRACE # Print a stack trace for a panic. 87# For full debugger support use (turn off in stable branch): 88options DDB # Support DDB. 89options GDB # Support remote GDB. 90options DEADLKRES # Enable the deadlock resolver 91options INVARIANTS # Enable calls of extra sanity checking 92options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS 93options WITNESS # Enable checks to detect deadlocks and cycles 94options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed 95options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones 96options VERBOSE_SYSINIT=0 # Support debug.verbose_sysinit, off by default 97 98# Make an SMP-capable kernel by default 99options SMP # Symmetric MultiProcessor Kernel 100options EARLY_AP_STARTUP 101device apic 102 103# CPU frequency control 104device cpufreq 105 106# Bus support. 107device acpi 108device smbios 109device pci 110 111# atkbdc0 controls both the keyboard and the PS/2 mouse 112device atkbdc # AT keyboard controller 113device atkbd # AT keyboard 114device psm # PS/2 mouse 115 116device kbdmux # keyboard multiplexer 117 118# syscons is the legacy console driver, resembling an SCO console 119device vga # VGA video card driver 120device splash # Splash screen and screen saver support 121device sc 122options SC_PIXEL_MODE # add support for the raster text mode 123 124# vt is the default video console driver 125device vt 126device vt_vga 127device vt_efifb 128device vt_vbefb 129 130device agp # support several AGP chipsets 131 132# Pseudo devices. 133device loop # Network loopback 134device padlock_rng # VIA Padlock RNG 135device rdrand_rng # Intel Bull Mountain RNG 136device ether # Ethernet support 137device vlan # 802.1Q VLAN support 138device tuntap # Packet tunnel. 139device gif # IPv6 and IPv4 tunneling 140 141# The `bpf' device enables the Berkeley Packet Filter. 142# Be aware of the administrative consequences of enabling this! 143# Note that 'bpf' is required for DHCP. 144device bpf # Berkeley packet filter 145 146# Linux KVM paravirtualization support 147device kvm_clock # KVM paravirtual clock driver 148 149# Xen HVM Guest Optimizations 150# NOTE: XENHVM depends on xenpci. They must be added or removed together. 151options XENHVM # Xen HVM kernel infrastructure 152device xenpci # Xen HVM Hypervisor services driver 153device xentimer # Xen x86 PV timer device 154 155# evdev interface 156options EVDEV_SUPPORT # evdev support in legacy drivers 157device evdev # input event device support 158device uinput # install /dev/uinput cdev 159