Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/amd64/conf/MINIMAL
Version:
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1 # 2 # MINIMAL -- Mostly Minimal kernel configuration file for FreeBSD/amd64 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 35 cpu HAMMER 36 ident MINIMAL 37 38 makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols 39 makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support 40 41 options SCHED_ULE # ULE scheduler 42 options NUMA # Non-Uniform Memory Architecture support 43 options PREEMPTION # Enable kernel thread preemption 44 options INET # InterNETworking 45 options INET6 # IPv6 communications protocols 46 options TCP_OFFLOAD # TCP offload 47 options SCTP_SUPPORT # Allow kldload of SCTP 48 options FFS # Berkeley Fast Filesystem 49 options SOFTUPDATES # Enable FFS soft updates support 50 options UFS_ACL # Support for access control lists 51 options UFS_DIRHASH # Improve performance on big directories 52 options UFS_GJOURNAL # Enable gjournal-based UFS journaling 53 options QUOTA # Enable disk quotas for UFS 54 options MD_ROOT # MD is a potential root device 55 options COMPAT_FREEBSD32 # Compatible with i386 binaries 56 options COMPAT_FREEBSD4 # Compatible with FreeBSD4 57 options COMPAT_FREEBSD5 # Compatible with FreeBSD5 58 options COMPAT_FREEBSD6 # Compatible with FreeBSD6 59 options COMPAT_FREEBSD7 # Compatible with FreeBSD7 60 options COMPAT_FREEBSD9 # Compatible with FreeBSD9 61 options COMPAT_FREEBSD10 # Compatible with FreeBSD10 62 options COMPAT_FREEBSD11 # Compatible with FreeBSD11 63 options COMPAT_FREEBSD12 # Compatible with FreeBSD12 64 options COMPAT_FREEBSD13 # Compatible with FreeBSD13 65 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI 66 options KTRACE # ktrace(1) support 67 options STACK # stack(9) support 68 options SYSVSHM # SYSV-style shared memory 69 options SYSVMSG # SYSV-style message queues 70 options SYSVSEM # SYSV-style semaphores 71 options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions 72 options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed. 73 options KBD_INSTALL_CDEV # install a CDEV entry in /dev 74 options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4) 75 options AUDIT # Security event auditing 76 options CAPABILITY_MODE # Capsicum capability mode 77 options CAPABILITIES # Capsicum capabilities 78 options MAC # TrustedBSD MAC Framework 79 options KDTRACE_FRAME # Ensure frames are compiled in 80 options KDTRACE_HOOKS # Kernel DTrace hooks 81 options DDB_CTF # Kernel ELF linker loads CTF data 82 options INCLUDE_CONFIG_FILE # Include this file in kernel 83 84 # Debugging support. Always need this: 85 options KDB # Enable kernel debugger support. 86 options KDB_TRACE # Print a stack trace for a panic. 87 88 # Make an SMP-capable kernel by default 89 options SMP # Symmetric MultiProcessor Kernel 90 options EARLY_AP_STARTUP 91 92 # CPU frequency control 93 device cpufreq 94 95 # Bus support. 96 device acpi 97 options IOMMU 98 device pci 99 100 # atkbdc0 controls both the keyboard and the PS/2 mouse 101 device atkbdc # AT keyboard controller 102 device atkbd # AT keyboard 103 device psm # PS/2 mouse 104 105 device kbdmux # keyboard multiplexer 106 107 # syscons is the legacy console driver, resembling an SCO console 108 device vga # VGA video card driver 109 device splash # Splash screen and screen saver support 110 device sc 111 options SC_PIXEL_MODE # add support for the raster text mode 112 113 # vt is the default video console driver 114 device vt 115 device vt_vga 116 device vt_efifb 117 device vt_vbefb 118 119 device agp # support several AGP chipsets 120 121 # Bring in 'uart' as well, since it can be a console driver and all console 122 # drivers must be compiled into the kernel. 123 device uart 124 125 # Pseudo devices. 126 device loop # Network loopback 127 device padlock_rng # VIA Padlock RNG 128 device rdrand_rng # Intel Bull Mountain RNG 129 device ether # Ethernet support 130 131 # The `bpf' device enables the Berkeley Packet Filter. 132 # Be aware of the administrative consequences of enabling this! 133 # Note that 'bpf' is required for DHCP. 134 device bpf # Berkeley packet filter 135 136 # Linux KVM paravirtualization support 137 device kvm_clock # KVM paravirtual clock driver 138 139 # Xen HVM Guest Optimizations 140 # NOTE: XENHVM depends on xenpci and xentimer. 141 # They must be added or removed together. 142 options XENHVM # Xen HVM kernel infrastructure 143 device xenpci # Xen HVM Hypervisor services driver 144 device xentimer # Xen x86 PV timer device 145 146 # evdev interface 147 options EVDEV_SUPPORT # evdev support in legacy drivers 148 device evdev # input event device support 149 device uinput # install /dev/uinput cdev
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