path: root/sys/amd64/conf/GENERIC

#
# GENERIC -- Generic kernel configuration file for FreeBSD/amd64
#
# For more information on this file, please read the config(5) manual page,
# and/or the handbook section on Kernel Configuration Files:
#
#    https://docs.freebsd.org/en/books/handbook/kernelconfig/#kernelconfig-config
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (https://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#

cpu		HAMMER
ident		GENERIC

makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols
makeoptions	WITH_CTF=1		# Run ctfconvert(1) for DTrace support

options 	SCHED_ULE		# ULE scheduler
options 	NUMA			# Non-Uniform Memory Architecture support
options 	PREEMPTION		# Enable kernel thread preemption
options 	VIMAGE			# Subsystem virtualization, e.g. VNET
options 	INET			# InterNETworking
options 	INET6			# IPv6 communications protocols
options 	IPSEC_SUPPORT		# Allow kldload of ipsec and tcpmd5
options 	ROUTE_MPATH		# Multipath routing support
options 	FIB_ALGO		# Modular fib lookups
options 	TCP_OFFLOAD		# TCP offload
options 	TCP_BLACKBOX		# Enhanced TCP event logging
options 	TCP_HHOOK		# hhook(9) framework for TCP
options 	TCP_RFC7413		# TCP Fast Open
options 	SCTP_SUPPORT		# Allow kldload of SCTP
options 	KERN_TLS		# TLS transmit & receive offload
options 	FFS			# Berkeley Fast Filesystem
options 	SOFTUPDATES		# Enable FFS soft updates support
options 	UFS_ACL			# Support for access control lists
options 	UFS_DIRHASH		# Improve performance on big directories
options 	UFS_GJOURNAL		# Enable gjournal-based UFS journaling
options 	QUOTA			# Enable disk quotas for UFS
options 	MD_ROOT			# MD is a potential root device
options 	NFSCL			# Network Filesystem Client
options 	NFSD			# Network Filesystem Server
options 	NFSLOCKD		# Network Lock Manager
options 	NFS_ROOT		# NFS usable as /, requires NFSCL
options 	MSDOSFS			# MSDOS Filesystem
options 	CD9660			# ISO 9660 Filesystem
options 	PROCFS			# Process filesystem (requires PSEUDOFS)
options 	PSEUDOFS		# Pseudo-filesystem framework
options 	TMPFS			# Efficient memory filesystem
options 	GEOM_RAID		# Soft RAID functionality.
options 	GEOM_LABEL		# Provides labelization
options 	EFIRT			# EFI Runtime Services support
options 	COMPAT_FREEBSD32	# Compatible with i386 binaries
options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
options 	COMPAT_FREEBSD11	# Compatible with FreeBSD11
options 	COMPAT_FREEBSD12	# Compatible with FreeBSD12
options 	COMPAT_FREEBSD13	# Compatible with FreeBSD13
options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
options 	KTRACE			# ktrace(1) support
options 	STACK			# stack(9) support
options 	SYSVSHM			# SYSV-style shared memory
options 	SYSVMSG			# SYSV-style message queues
options 	SYSVSEM			# SYSV-style semaphores
options 	_KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options 	PRINTF_BUFR_SIZE=128	# Prevent printf output being interspersed.
options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
options 	HWPMC_HOOKS		# Necessary kernel hooks for hwpmc(4)
options 	AUDIT			# Security event auditing
options 	CAPABILITY_MODE		# Capsicum capability mode
options 	CAPABILITIES		# Capsicum capabilities
options 	MAC			# TrustedBSD MAC Framework
options 	KDTRACE_FRAME		# Ensure frames are compiled in
options 	KDTRACE_HOOKS		# Kernel DTrace hooks
options 	DDB_CTF			# Kernel ELF linker loads CTF data
options 	INCLUDE_CONFIG_FILE	# Include this file in kernel
options 	RACCT			# Resource accounting framework
options 	RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
options 	RCTL			# Resource limits

# Debugging support.  Always need this:
options 	KDB			# Enable kernel debugger support.
options 	KDB_TRACE		# Print a stack trace for a panic.
# For full debugger support use (turn off in stable branch):
options 	BUF_TRACKING		# Track buffer history
options 	DDB			# Support DDB.
options 	FULL_BUF_TRACKING	# Track more buffer history
options 	GDB			# Support remote GDB.
options 	DEADLKRES		# Enable the deadlock resolver
options 	INVARIANTS		# Enable calls of extra sanity checking
options 	INVARIANT_SUPPORT	# Extra sanity checks of internal structures, required by INVARIANTS
options 	QUEUE_MACRO_DEBUG_TRASH	# Trash queue(2) internal pointers on invalidation
options 	WITNESS			# Enable checks to detect deadlocks and cycles
options 	WITNESS_SKIPSPIN	# Don't run witness on spinlocks for speed
options 	MALLOC_DEBUG_MAXZONES=8	# Separate malloc(9) zones
options 	VERBOSE_SYSINIT=0	# Support debug.verbose_sysinit, off by default

# Kernel Sanitizers
#options 	COVERAGE		# Generic kernel coverage. Used by KCOV
#options 	KCOV			# Kernel Coverage Sanitizer
# Warning: KUBSAN can result in a kernel too large for loader to load
#options 	KUBSAN			# Kernel Undefined Behavior Sanitizer
#options 	KCSAN			# Kernel Concurrency Sanitizer

# Kernel dump features.
options 	EKCD			# Support for encrypted kernel dumps
options 	GZIO			# gzip-compressed kernel and user dumps
options 	ZSTDIO			# zstd-compressed kernel and user dumps
options 	DEBUGNET		# debugnet networking
options 	NETDUMP			# netdump(4) client support
options 	NETGDB			# netgdb(4) client support

# Make an SMP-capable kernel by default
options 	SMP			# Symmetric MultiProcessor Kernel

# CPU frequency control
device		cpufreq

# Bus support.
device		acpi
device		smbios
options 	IOMMU
device		pci
options 	PCI_HP			# PCI-Express native HotPlug
options 	PCI_IOV			# PCI SR-IOV support

options 	COMPAT_LINUXKPI

# Enable support for the kernel PLL to use an external PPS signal,
# under supervision of [x]ntpd(8)
# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp

options 	PPS_SYNC

# Floppy drives
device		fdc

# ATA controllers
device		ahci			# AHCI-compatible SATA controllers
device		ata			# Legacy ATA/SATA controllers
device		mvs			# Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA
device		siis			# SiliconImage SiI3124/SiI3132/SiI3531 SATA

# SCSI Controllers
device		ahc			# AHA2940 and onboard AIC7xxx devices
device		ahd			# AHA39320/29320 and onboard AIC79xx devices
device		hptiop			# Highpoint RocketRaid 3xxx series
device		isp			# Qlogic family
#device		ispfw			# Firmware for QLogic HBAs- normally a module
device		mpt			# LSI-Logic MPT-Fusion
device		mps			# LSI-Logic MPT-Fusion 2
device		mpr			# LSI-Logic MPT-Fusion 3
device		sym			# NCR/Symbios Logic
device		isci			# Intel C600 SAS controller
device		ocs_fc			# Emulex FC adapters
device		pvscsi			# VMware PVSCSI

# ATA/SCSI peripherals
device		scbus			# SCSI bus (required for ATA/SCSI)
device		ch			# SCSI media changers
device		da			# Direct Access (disks)
device		sa			# Sequential Access (tape etc)
device		cd			# CD
device		pass			# Passthrough device (direct ATA/SCSI access)
device		ses			# Enclosure Services (SES and SAF-TE)
#device		ctl			# CAM Target Layer

# RAID controllers interfaced to the SCSI subsystem
device		arcmsr			# Areca SATA II RAID
device		ciss			# Compaq Smart RAID 5*
device		ips			# IBM (Adaptec) ServeRAID
device		smartpqi		# Microsemi smartpqi driver
device		tws			# LSI 3ware 9750 SATA+SAS 6Gb/s RAID controller

# RAID controllers
device		aac			# Adaptec FSA RAID
device		aacp			# SCSI passthrough for aac (requires CAM)
device		aacraid			# Adaptec by PMC RAID
device		ida			# Compaq Smart RAID
device		mfi			# LSI MegaRAID SAS
device		mlx			# Mylex DAC960 family
device		mrsas			# LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
#XXX pointer/int warnings
#device		pst			# Promise Supertrak SX6000

# NVM Express (NVMe) support
device		nvme			# base NVMe driver
device		nvd			# expose NVMe namespaces as disks, depends on nvme

# Intel Volume Management Device (VMD) support
device		vmd

# atkbdc0 controls both the keyboard and the PS/2 mouse
device		atkbdc			# AT keyboard controller
device		atkbd			# AT keyboard
device		psm			# PS/2 mouse

device		kbdmux			# keyboard multiplexer

# syscons is the legacy console driver, resembling an SCO console
device		vga			# VGA video card driver
device		splash			# Splash screen and screen saver support
device		sc
options 	SC_PIXEL_MODE		# add support for the raster text mode

# vt is the default video console driver
device		vt
device		vt_vga
device		vt_efifb
device		vt_vbefb

device		agp			# support several AGP chipsets

# CardBus bridge support
device		cbb			# CardBus (yenta) bridge
device		cardbus			# CardBus (32-bit) bus

# Serial (COM) ports
device		uart			# Generic UART driver

# Parallel port
device		ppc
device		ppbus			# Parallel port bus (required)
device		lpt			# Printer
device		ppi			# Parallel port interface device
#device		vpo			# Requires scbus and da

device		puc			# Multi I/O cards and multi-channel UARTs

# PCI/PCI-X/PCIe Ethernet NICs that use iflib infrastructure
device		iflib
device		em			# Intel PRO/1000 Gigabit Ethernet Family
device		igc			# Intel I225 2.5G Ethernet
device		ix			# Intel PRO/10GbE PCIE PF Ethernet
device		ixv			# Intel PRO/10GbE PCIE VF Ethernet
device		ixl			# Intel 700 Series Physical Function
device		iavf			# Intel Adaptive Virtual Function
device		ice			# Intel 800 Series Physical Function
device		vmx			# VMware VMXNET3 Ethernet
device		axp			# AMD EPYC integrated NIC (requires miibus)

# PCI Ethernet NICs.
device		bxe			# Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
device		le			# AMD Am7900 LANCE and Am79C9xx PCnet
device		ti			# Alteon Networks Tigon I/II gigabit Ethernet

# Nvidia/Mellanox Connect-X 4 and later, Ethernet only
#  o requires COMPAT_LINUXKPI and xz(4)
#  o mlx5ib requires ibcore infra and is not included by default
device		mlx5			# Base driver
device		mlxfw			# Firmware update
device		mlx5en			# Ethernet driver

# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device		miibus			# MII bus support
device		ae			# Attansic/Atheros L2 FastEthernet
device		age			# Attansic/Atheros L1 Gigabit Ethernet
device		alc			# Atheros AR8131/AR8132 Ethernet
device		ale			# Atheros AR8121/AR8113/AR8114 Ethernet
device		bce			# Broadcom BCM5706/BCM5708 Gigabit Ethernet
device		bfe			# Broadcom BCM440x 10/100 Ethernet
device		bge			# Broadcom BCM570xx Gigabit Ethernet
device		cas			# Sun Cassini/Cassini+ and NS DP83065 Saturn
device		dc			# DEC/Intel 21143 and various workalikes
device		et			# Agere ET1310 10/100/Gigabit Ethernet
device		fxp			# Intel EtherExpress PRO/100B (82557, 82558)
device		gem			# Sun GEM/Sun ERI/Apple GMAC
device		jme			# JMicron JMC250 Gigabit/JMC260 Fast Ethernet
device		lge			# Level 1 LXT1001 gigabit Ethernet
device		msk			# Marvell/SysKonnect Yukon II Gigabit Ethernet
device		nfe			# nVidia nForce MCP on-board Ethernet
device		nge			# NatSemi DP83820 gigabit Ethernet
device		re			# RealTek 8139C+/8169/8169S/8110S
device		rl			# RealTek 8129/8139
device		sge			# Silicon Integrated Systems SiS190/191
device		sis			# Silicon Integrated Systems SiS 900/SiS 7016
device		sk			# SysKonnect SK-984x & SK-982x gigabit Ethernet
device		ste			# Sundance ST201 (D-Link DFE-550TX)
device		stge			# Sundance/Tamarack TC9021 gigabit Ethernet
device		vge			# VIA VT612x gigabit Ethernet
device		vr			# VIA Rhine, Rhine II
device		xl			# 3Com 3c90x (``Boomerang'', ``Cyclone'')

# Wireless NIC cards
device		wlan			# 802.11 support
options 	IEEE80211_DEBUG		# enable debug msgs
options 	IEEE80211_SUPPORT_MESH	# enable 802.11s draft support
device		wlan_wep		# 802.11 WEP support
device		wlan_ccmp		# 802.11 CCMP support
device		wlan_tkip		# 802.11 TKIP support
device		wlan_amrr		# AMRR transmit rate control algorithm
device		ath			# Atheros CardBus/PCI NICs
device		ath_hal			# Atheros CardBus/PCI chip support
options 	AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
options 	ATH_ENABLE_11N		# Enable 802.11n support for AR5416 and later
device		ath_rate_sample		# SampleRate tx rate control for ath
#device		bwi			# Broadcom BCM430x/BCM431x wireless NICs.
#device		bwn			# Broadcom BCM43xx wireless NICs.
device		ipw			# Intel 2100 wireless NICs.
device		iwi			# Intel 2200BG/2225BG/2915ABG wireless NICs.
device		iwn			# Intel 4965/1000/5000/6000 wireless NICs.
device		malo			# Marvell Libertas wireless NICs.
device		mwl			# Marvell 88W8363 802.11n wireless NICs.
device		ral			# Ralink Technology RT2500 wireless NICs.
device		wpi			# Intel 3945ABG wireless NICs.

# Pseudo devices.
device		crypto			# core crypto support
device		aesni			# AES-NI OpenCrypto module
device		loop			# Network loopback
device		padlock_rng		# VIA Padlock RNG
device		rdrand_rng		# Intel Bull Mountain RNG
device		ether			# Ethernet support
device		vlan			# 802.1Q VLAN support
device		tuntap			# Packet tunnel.
device		md			# Memory "disks"
device		gif			# IPv6 and IPv4 tunneling
device		firmware		# firmware assist module
device		xz			# lzma decompression

# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device		bpf			# Berkeley packet filter

# USB support
options 	USB_DEBUG		# enable debug msgs
device		uhci			# UHCI PCI->USB interface
device		ohci			# OHCI PCI->USB interface
device		ehci			# EHCI PCI->USB interface (USB 2.0)
device		xhci			# XHCI PCI->USB interface (USB 3.0)
device		usb			# USB Bus (required)
device		ukbd			# Keyboard
device		umass			# Disks/Mass storage - Requires scbus and da

# Sound support
device		sound			# Generic sound driver (required)
device		snd_cmi			# CMedia CMI8338/CMI8738
device		snd_csa			# Crystal Semiconductor CS461x/428x
device		snd_emu10kx		# Creative SoundBlaster Live! and Audigy
device		snd_es137x		# Ensoniq AudioPCI ES137x
device		snd_hda			# Intel High Definition Audio
device		snd_ich			# Intel, NVidia and other ICH AC'97 Audio
device		snd_via8233		# VIA VT8233x Audio

# MMC/SD
device		mmc			# MMC/SD bus
device		mmcsd			# MMC/SD memory card
device		sdhci			# Generic PCI SD Host Controller

# VirtIO support
device		virtio			# Generic VirtIO bus (required)
device		virtio_pci		# VirtIO PCI device
device		vtnet			# VirtIO Ethernet device
device		virtio_blk		# VirtIO Block device
device		virtio_scsi		# VirtIO SCSI device
device		virtio_balloon		# VirtIO Memory Balloon device

# Linux KVM paravirtualization support
device		kvm_clock		# KVM paravirtual clock driver

# HyperV drivers and enhancement support
device		hyperv			# HyperV drivers

# Xen HVM Guest Optimizations
# NOTE: XENHVM depends on xenpci and xentimer.
# They must be added or removed together.
options 	XENHVM			# Xen HVM kernel infrastructure
device		xenefi			# Xen EFI timer device
device		xenpci			# Xen HVM Hypervisor services driver
device		xentimer		# Xen x86 PV timer device

# Netmap provides direct access to TX/RX rings on supported NICs
device		netmap			# netmap(4) support

# evdev interface
options 	EVDEV_SUPPORT		# evdev support in legacy drivers
device		evdev			# input event device support
device		uinput			# install /dev/uinput cdev

# HID support
options 	HID_DEBUG		# enable debug msgs
device		hid			# Generic HID support
options 	IICHID_SAMPLING		# Workaround missing GPIO INTR support