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 (non-loaded) random is included due to uncertainty... 10# o Many networking things are included 11# 12# For now, please run changes to these list past imp@freebsd.org 13# 14# For more information on this file, please read the config(5) manual page, 15# and/or the handbook section on Kernel Configuration Files: 16# 17# https://docs.freebsd.org/en/books/handbook/kernelconfig/#kernelconfig-config 18# 19# The handbook is also available locally in /usr/share/doc/handbook 20# if you've installed the doc distribution, otherwise always see the 21# FreeBSD World Wide Web server (https://www.FreeBSD.org/) for the 22# latest information. 23# 24# An exhaustive list of options and more detailed explanations of the 25# device lines is also present in the ../../conf/NOTES and NOTES files. 26# If you are in doubt as to the purpose or necessity of a line, check first 27# in NOTES. 28# 29 30cpu HAMMER 31ident MINIMAL 32 33makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols 34makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support 35 36options SCHED_ULE # ULE scheduler 37options NUMA # Non-Uniform Memory Architecture support 38options PREEMPTION # Enable kernel thread preemption 39options VIMAGE # Subsystem virtualization, e.g. VNET 40options INET # InterNETworking 41options INET6 # IPv6 communications protocols 42options TCP_OFFLOAD # TCP offload 43options SCTP_SUPPORT # Allow kldload of SCTP 44options SOFTUPDATES # Enable FFS soft updates support 45options UFS_ACL # Support for access control lists 46options UFS_DIRHASH # Improve performance on big directories 47options UFS_GJOURNAL # Enable gjournal-based UFS journaling 48options QUOTA # Enable disk quotas for UFS 49options MD_ROOT # MD is a potential root device 50options GEOM_LABEL # Provides labelization 51options COMPAT_FREEBSD32 # Compatible with i386 binaries 52options COMPAT_FREEBSD4 # Compatible with FreeBSD4 53options COMPAT_FREEBSD5 # Compatible with FreeBSD5 54options COMPAT_FREEBSD6 # Compatible with FreeBSD6 55options COMPAT_FREEBSD7 # Compatible with FreeBSD7 56options COMPAT_FREEBSD9 # Compatible with FreeBSD9 57options COMPAT_FREEBSD10 # Compatible with FreeBSD10 58options COMPAT_FREEBSD11 # Compatible with FreeBSD11 59options COMPAT_FREEBSD12 # Compatible with FreeBSD12 60options COMPAT_FREEBSD13 # Compatible with FreeBSD13 61options COMPAT_FREEBSD14 # Compatible with FreeBSD14 62options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI 63options KTRACE # ktrace(1) support 64options STACK # stack(9) support 65options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions 66options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed. 67options KBD_INSTALL_CDEV # install a CDEV entry in /dev 68options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4) 69options AUDIT # Security event auditing 70options CAPABILITY_MODE # Capsicum capability mode 71options CAPABILITIES # Capsicum capabilities 72options MAC # TrustedBSD MAC Framework 73options KDTRACE_FRAME # Ensure frames are compiled in 74options KDTRACE_HOOKS # Kernel DTrace hooks 75options DDB_CTF # Kernel ELF linker loads CTF data 76options INCLUDE_CONFIG_FILE # Include this file in kernel 77 78# Debugging support. Always need this: 79options KDB # Enable kernel debugger support. 80options KDB_TRACE # Print a stack trace for a panic. 81# For full debugger support use (turn off in stable branch): 82include "std.debug" 83 84# Make an SMP-capable kernel by default 85options SMP # Symmetric MultiProcessor Kernel 86 87# CPU frequency control 88device cpufreq 89 90# Bus support. 91device acpi 92options IOMMU 93device pci 94 95# atkbdc0 controls both the keyboard and the PS/2 mouse 96device atkbdc # AT keyboard controller 97device atkbd # AT keyboard 98device psm # PS/2 mouse 99 100device kbdmux # keyboard multiplexer 101 102# syscons is the legacy console driver, resembling an SCO console 103device vga # VGA video card driver 104device splash # Splash screen and screen saver support 105device sc 106options SC_PIXEL_MODE # add support for the raster text mode 107 108# vt is the default video console driver 109device vt 110device vt_vga 111device vt_efifb 112device vt_vbefb 113 114device agp # support several AGP chipsets 115 116# Serial (COM) ports 117device uart # Generic UART driver 118 119# Pseudo devices. 120device loop # Network loopback 121device padlock_rng # VIA Padlock RNG 122device rdrand_rng # Intel Bull Mountain RNG 123device ether # Ethernet support 124 125# The `bpf' device enables the Berkeley Packet Filter. 126# Be aware of the administrative consequences of enabling this! 127# Note that 'bpf' is required for DHCP. 128device bpf # Berkeley packet filter 129 130# VirtIO support 131device virtio # Generic VirtIO bus (required) 132device virtio_pci # VirtIO PCI device 133device vtnet # VirtIO Ethernet device 134device virtio_blk # VirtIO Block device 135device virtio_balloon # VirtIO Memory Balloon device 136 137# Linux KVM paravirtualization support 138device kvm_clock # KVM paravirtual clock driver 139 140# Xen HVM Guest Optimizations 141# NOTE: XENHVM depends on xenpci and xentimer. 142# They must be added or removed together. 143options XENHVM # Xen HVM kernel infrastructure 144device xenefi # Xen EFI timer device 145device xenpci # Xen HVM Hypervisor services driver 146device xentimer # Xen x86 PV timer device 147 148# evdev interface 149options EVDEV_SUPPORT # evdev support in legacy drivers 150device evdev # input event device support 151device uinput # install /dev/uinput cdev 152 153# NVM Express (NVMe) support 154device nvme # base NVMe driver 155 156# ATA controllers 157device ahci # AHCI-compatible SATA controllers 158 159# CAM 160device scbus # SCSI bus (required for ATA/SCSI) 161device da # Direct Access (disks) 162device cd # CD 163device pass # Passthrough device (direct ATA/SCSI access) 164