GENERIC revision 247615
11558Srgrimes#
21558Srgrimes# GENERIC -- Generic kernel configuration file for FreeBSD/amd64
31558Srgrimes#
41558Srgrimes# For more information on this file, please read the config(5) manual page,
51558Srgrimes# and/or the handbook section on Kernel Configuration Files:
61558Srgrimes#
71558Srgrimes#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
81558Srgrimes#
91558Srgrimes# The handbook is also available locally in /usr/share/doc/handbook
101558Srgrimes# if you've installed the doc distribution, otherwise always see the
111558Srgrimes# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
121558Srgrimes# latest information.
131558Srgrimes#
141558Srgrimes# An exhaustive list of options and more detailed explanations of the
151558Srgrimes# device lines is also present in the ../../conf/NOTES and NOTES files.
161558Srgrimes# If you are in doubt as to the purpose or necessity of a line, check first
171558Srgrimes# in NOTES.
181558Srgrimes#
191558Srgrimes# $FreeBSD: head/sys/amd64/conf/GENERIC 247615 2013-03-02 08:12:41Z adrian $
201558Srgrimes
211558Srgrimescpu		HAMMER
221558Srgrimesident		GENERIC
231558Srgrimes
241558Srgrimesmakeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols
251558Srgrimesmakeoptions	WITH_CTF=1		# Run ctfconvert(1) for DTrace support
261558Srgrimes
271558Srgrimesoptions 	SCHED_ULE		# ULE scheduler
281558Srgrimesoptions 	PREEMPTION		# Enable kernel thread preemption
291558Srgrimesoptions 	INET			# InterNETworking
301558Srgrimesoptions 	INET6			# IPv6 communications protocols
311558Srgrimesoptions 	TCP_OFFLOAD		# TCP offload
321558Srgrimesoptions 	SCTP			# Stream Control Transmission Protocol
331558Srgrimesoptions 	FFS			# Berkeley Fast Filesystem
341558Srgrimesoptions 	SOFTUPDATES		# Enable FFS soft updates support
3537906Scharnieroptions 	UFS_ACL			# Support for access control lists
3623685Speteroptions 	UFS_DIRHASH		# Improve performance on big directories
3737906Scharnieroptions 	UFS_GJOURNAL		# Enable gjournal-based UFS journaling
3837906Scharnieroptions 	QUOTA			# Enable disk quotas for UFS
3950476Speteroptions 	MD_ROOT			# MD is a potential root device
401558Srgrimesoptions 	NFSCL			# New Network Filesystem Client
411558Srgrimesoptions 	NFSD			# New Network Filesystem Server
421558Srgrimesoptions 	NFSLOCKD		# Network Lock Manager
431558Srgrimesoptions 	NFS_ROOT		# NFS usable as /, requires NFSCL
441558Srgrimesoptions 	MSDOSFS			# MSDOS Filesystem
451558Srgrimesoptions 	CD9660			# ISO 9660 Filesystem
461558Srgrimesoptions 	PROCFS			# Process filesystem (requires PSEUDOFS)
4798542Smckusickoptions 	PSEUDOFS		# Pseudo-filesystem framework
4898542Smckusickoptions 	GEOM_PART_GPT		# GUID Partition Tables.
491558Srgrimesoptions 	GEOM_RAID		# Soft RAID functionality.
501558Srgrimesoptions 	GEOM_LABEL		# Provides labelization
511558Srgrimesoptions 	COMPAT_FREEBSD32	# Compatible with i386 binaries
5292837Simpoptions 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
531558Srgrimesoptions 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
541558Srgrimesoptions 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
551558Srgrimesoptions 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
561558Srgrimesoptions 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
571558Srgrimesoptions 	KTRACE			# ktrace(1) support
581558Srgrimesoptions 	STACK			# stack(9) support
5992837Simpoptions 	SYSVSHM			# SYSV-style shared memory
601558Srgrimesoptions 	SYSVMSG			# SYSV-style message queues
611558Srgrimesoptions 	SYSVSEM			# SYSV-style semaphores
621558Srgrimesoptions 	_KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
631558Srgrimesoptions 	PRINTF_BUFR_SIZE=128	# Prevent printf output being interspersed.
641558Srgrimesoptions 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
651558Srgrimesoptions 	HWPMC_HOOKS		# Necessary kernel hooks for hwpmc(4)
661558Srgrimesoptions 	AUDIT			# Security event auditing
671558Srgrimesoptions 	CAPABILITY_MODE		# Capsicum capability mode
681558Srgrimesoptions 	CAPABILITIES		# Capsicum capabilities
691558Srgrimesoptions 	MAC			# TrustedBSD MAC Framework
701558Srgrimesoptions 	KDTRACE_FRAME		# Ensure frames are compiled in
711558Srgrimesoptions 	KDTRACE_HOOKS		# Kernel DTrace hooks
721558Srgrimesoptions 	DDB_CTF			# Kernel ELF linker loads CTF data
731558Srgrimesoptions 	INCLUDE_CONFIG_FILE     # Include this file in kernel
741558Srgrimes
7592837Simp# Debugging support.  Always need this:
761558Srgrimesoptions 	KDB			# Enable kernel debugger support.
7792806Sobrien# For minimum debugger support (stable branch) use:
781558Srgrimes#options 	KDB_TRACE		# Print a stack trace for a panic.
791558Srgrimes# For full debugger support use this instead:
801558Srgrimesoptions 	DDB			# Support DDB.
811558Srgrimesoptions 	GDB			# Support remote GDB.
821558Srgrimesoptions 	DEADLKRES		# Enable the deadlock resolver
831558Srgrimesoptions 	INVARIANTS		# Enable calls of extra sanity checking
841558Srgrimesoptions 	INVARIANT_SUPPORT	# Extra sanity checks of internal structures, required by INVARIANTS
8523685Speteroptions 	WITNESS			# Enable checks to detect deadlocks and cycles
8623685Speteroptions 	WITNESS_SKIPSPIN	# Don't run witness on spinlocks for speed
871558Srgrimesoptions 	MALLOC_DEBUG_MAXZONES=8	# Separate malloc(9) zones
881558Srgrimes
891558Srgrimes# Make an SMP-capable kernel by default
901558Srgrimesoptions 	SMP			# Symmetric MultiProcessor Kernel
911558Srgrimes
921558Srgrimes# CPU frequency control
931558Srgrimesdevice		cpufreq
941558Srgrimes
951558Srgrimes# Bus support.
961558Srgrimesdevice		acpi
971558Srgrimesdevice		pci
981558Srgrimes
991558Srgrimes# Floppy drives
1001558Srgrimesdevice		fdc
1011558Srgrimes
1021558Srgrimes# ATA controllers
1031558Srgrimesdevice		ahci		# AHCI-compatible SATA controllers
1041558Srgrimesdevice		ata		# Legacy ATA/SATA controllers
1051558Srgrimesoptions 	ATA_CAM		# Handle legacy controllers with CAM
1061558Srgrimesoptions 	ATA_STATIC_ID	# Static device numbering
1071558Srgrimesdevice		mvs		# Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA
1081558Srgrimesdevice		siis		# SiliconImage SiI3124/SiI3132/SiI3531 SATA
1091558Srgrimes
1101558Srgrimes# SCSI Controllers
1111558Srgrimesdevice		ahc		# AHA2940 and onboard AIC7xxx devices
1121558Srgrimesoptions 	AHC_REG_PRETTY_PRINT	# Print register bitfields in debug
1131558Srgrimes					# output.  Adds ~128k to driver.
1141558Srgrimesdevice		ahd		# AHA39320/29320 and onboard AIC79xx devices
1151558Srgrimesoptions 	AHD_REG_PRETTY_PRINT	# Print register bitfields in debug
11692837Simp					# output.  Adds ~215k to driver.
1171558Srgrimesdevice		esp		# AMD Am53C974 (Tekram DC-390(T))
1181558Srgrimesdevice		hptiop		# Highpoint RocketRaid 3xxx series
1191558Srgrimesdevice		isp		# Qlogic family
1201558Srgrimes#device		ispfw		# Firmware for QLogic HBAs- normally a module
1211558Srgrimesdevice		mpt		# LSI-Logic MPT-Fusion
1221558Srgrimesdevice		mps		# LSI-Logic MPT-Fusion 2
12323685Speter#device		ncr		# NCR/Symbios Logic
12423685Speterdevice		sym		# NCR/Symbios Logic (newer chipsets + those of `ncr')
1251558Srgrimesdevice		trm		# Tekram DC395U/UW/F DC315U adapters
12623685Speter
12723685Speterdevice		adv		# Advansys SCSI adapters
12823685Speterdevice		adw		# Advansys wide SCSI adapters
12923685Speterdevice		aic		# Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
1301558Srgrimesdevice		bt		# Buslogic/Mylex MultiMaster SCSI adapters
1311558Srgrimesdevice		isci		# Intel C600 SAS controller
1321558Srgrimes
1338871Srgrimes# ATA/SCSI peripherals
1341558Srgrimesdevice		scbus		# SCSI bus (required for ATA/SCSI)
1351558Srgrimesdevice		ch		# SCSI media changers
1361558Srgrimesdevice		da		# Direct Access (disks)
1371558Srgrimesdevice		sa		# Sequential Access (tape etc)
1381558Srgrimesdevice		cd		# CD
1391558Srgrimesdevice		pass		# Passthrough device (direct ATA/SCSI access)
1401558Srgrimesdevice		ses		# Enclosure Services (SES and SAF-TE)
1411558Srgrimes#device		ctl		# CAM Target Layer
1428871Srgrimes
1431558Srgrimes# RAID controllers interfaced to the SCSI subsystem
1441558Srgrimesdevice		amr		# AMI MegaRAID
1451558Srgrimesdevice		arcmsr		# Areca SATA II RAID
1461558Srgrimes#XXX it is not 64-bit clean, -scottl
1471558Srgrimes#device		asr		# DPT SmartRAID V, VI and Adaptec SCSI RAID
1481558Srgrimesdevice		ciss		# Compaq Smart RAID 5*
14923685Speterdevice		dpt		# DPT Smartcache III, IV - See NOTES for options
1501558Srgrimesdevice		hptmv		# Highpoint RocketRAID 182x
1511558Srgrimesdevice		hptrr		# Highpoint RocketRAID 17xx, 22xx, 23xx, 25xx
1521558Srgrimesdevice		hpt27xx		# Highpoint RocketRAID 27xx
1531558Srgrimesdevice		iir		# Intel Integrated RAID
15492837Simpdevice		ips		# IBM (Adaptec) ServeRAID
1551558Srgrimesdevice		mly		# Mylex AcceleRAID/eXtremeRAID
15692806Sobriendevice		twa		# 3ware 9000 series PATA/SATA RAID
15792806Sobriendevice		tws		# LSI 3ware 9750 SATA+SAS 6Gb/s RAID controller
1581558Srgrimes
1591558Srgrimes# RAID controllers
16037906Scharnierdevice		aac		# Adaptec FSA RAID
16123685Speterdevice		aacp		# SCSI passthrough for aac (requires CAM)
16223685Speterdevice		ida		# Compaq Smart RAID
16323685Speterdevice		mfi		# LSI MegaRAID SAS
16423685Speterdevice		mlx		# Mylex DAC960 family
16523685Speter#XXX pointer/int warnings
16623685Speter#device		pst		# Promise Supertrak SX6000
16723685Speterdevice		twe		# 3ware ATA RAID
16823685Speter
16923685Speter# atkbdc0 controls both the keyboard and the PS/2 mouse
17023685Speterdevice		atkbdc		# AT keyboard controller
17123685Speterdevice		atkbd		# AT keyboard
17223685Speterdevice		psm		# PS/2 mouse
17323685Speter
17423685Speterdevice		kbdmux		# keyboard multiplexer
17523685Speter
1761558Srgrimesdevice		vga		# VGA video card driver
1771558Srgrimesoptions 	VESA		# Add support for VESA BIOS Extensions (VBE)
1781558Srgrimes
1791558Srgrimesdevice		splash		# Splash screen and screen saver support
18023685Speter
1811558Srgrimes# syscons is the default console driver, resembling an SCO console
1821558Srgrimesdevice		sc
1831558Srgrimesoptions 	SC_PIXEL_MODE	# add support for the raster text mode
1841558Srgrimes
1851558Srgrimesdevice		agp		# support several AGP chipsets
1861558Srgrimes
1871558Srgrimes# PCCARD (PCMCIA) support
1881558Srgrimes# PCMCIA and cardbus bridge support
1891558Srgrimesdevice		cbb		# cardbus (yenta) bridge
1901558Srgrimesdevice		pccard		# PC Card (16-bit) bus
1911558Srgrimesdevice		cardbus		# CardBus (32-bit) bus
1921558Srgrimes
1931558Srgrimes# Serial (COM) ports
1941558Srgrimesdevice		uart		# Generic UART driver
1951558Srgrimes
1961558Srgrimes# Parallel port
1971558Srgrimesdevice		ppc
1981558Srgrimesdevice		ppbus		# Parallel port bus (required)
1991558Srgrimesdevice		lpt		# Printer
2001558Srgrimesdevice		ppi		# Parallel port interface device
2011558Srgrimes#device		vpo		# Requires scbus and da
2021558Srgrimes
2031558Srgrimesdevice		puc		# Multi I/O cards and multi-channel UARTs
2041558Srgrimes
2051558Srgrimes# PCI Ethernet NICs.
2061558Srgrimesdevice		bxe		# Broadcom BCM57710/BCM57711/BCM57711E 10Gb Ethernet
20792837Simpdevice		de		# DEC/Intel DC21x4x (``Tulip'')
2081558Srgrimesdevice		em		# Intel PRO/1000 Gigabit Ethernet Family
20992806Sobriendevice		igb		# Intel PRO/1000 PCIE Server Gigabit Family
2101558Srgrimesdevice		ixgbe		# Intel PRO/10GbE PCIE Ethernet Family
2111558Srgrimesdevice		le		# AMD Am7900 LANCE and Am79C9xx PCnet
2121558Srgrimesdevice		ti		# Alteon Networks Tigon I/II gigabit Ethernet
2131558Srgrimesdevice		txp		# 3Com 3cR990 (``Typhoon'')
2141558Srgrimesdevice		vx		# 3Com 3c590, 3c595 (``Vortex'')
2151558Srgrimes
2161558Srgrimes# PCI Ethernet NICs that use the common MII bus controller code.
2171558Srgrimes# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
2181558Srgrimesdevice		miibus		# MII bus support
2191558Srgrimesdevice		ae		# Attansic/Atheros L2 FastEthernet
2208871Srgrimesdevice		age		# Attansic/Atheros L1 Gigabit Ethernet
2211558Srgrimesdevice		alc		# Atheros AR8131/AR8132 Ethernet
2221558Srgrimesdevice		ale		# Atheros AR8121/AR8113/AR8114 Ethernet
2231558Srgrimesdevice		bce		# Broadcom BCM5706/BCM5708 Gigabit Ethernet
2241558Srgrimesdevice		bfe		# Broadcom BCM440x 10/100 Ethernet
2251558Srgrimesdevice		bge		# Broadcom BCM570xx Gigabit Ethernet
2261558Srgrimesdevice		cas		# Sun Cassini/Cassini+ and NS DP83065 Saturn
2271558Srgrimesdevice		dc		# DEC/Intel 21143 and various workalikes
2281558Srgrimesdevice		et		# Agere ET1310 10/100/Gigabit Ethernet
2291558Srgrimesdevice		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
2301558Srgrimesdevice		gem		# Sun GEM/Sun ERI/Apple GMAC
2311558Srgrimesdevice		hme		# Sun HME (Happy Meal Ethernet)
2321558Srgrimesdevice		jme		# JMicron JMC250 Gigabit/JMC260 Fast Ethernet
2331558Srgrimesdevice		lge		# Level 1 LXT1001 gigabit Ethernet
2341558Srgrimesdevice		msk		# Marvell/SysKonnect Yukon II Gigabit Ethernet
2351558Srgrimesdevice		nfe		# nVidia nForce MCP on-board Ethernet
2361558Srgrimesdevice		nge		# NatSemi DP83820 gigabit Ethernet
2371558Srgrimes#device		nve		# nVidia nForce MCP on-board Ethernet Networking
2381558Srgrimesdevice		pcn		# AMD Am79C97x PCI 10/100 (precedence over 'le')
2391558Srgrimesdevice		re		# RealTek 8139C+/8169/8169S/8110S
2401558Srgrimesdevice		rl		# RealTek 8129/8139
2411558Srgrimesdevice		sf		# Adaptec AIC-6915 (``Starfire'')
2421558Srgrimesdevice		sge		# Silicon Integrated Systems SiS190/191
2431558Srgrimesdevice		sis		# Silicon Integrated Systems SiS 900/SiS 7016
2441558Srgrimesdevice		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
2451558Srgrimesdevice		ste		# Sundance ST201 (D-Link DFE-550TX)
2461558Srgrimesdevice		stge		# Sundance/Tamarack TC9021 gigabit Ethernet
2471558Srgrimesdevice		tl		# Texas Instruments ThunderLAN
2481558Srgrimesdevice		tx		# SMC EtherPower II (83c170 ``EPIC'')
2491558Srgrimesdevice		vge		# VIA VT612x gigabit Ethernet
2501558Srgrimesdevice		vr		# VIA Rhine, Rhine II
2511558Srgrimesdevice		wb		# Winbond W89C840F
2521558Srgrimesdevice		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
2531558Srgrimes
2541558Srgrimes# ISA Ethernet NICs.  pccard NICs included.
2551558Srgrimesdevice		cs		# Crystal Semiconductor CS89x0 NIC
2561558Srgrimes# 'device ed' requires 'device miibus'
2571558Srgrimesdevice		ed		# NE[12]000, SMC Ultra, 3c503, DS8390 cards
2581558Srgrimesdevice		ex		# Intel EtherExpress Pro/10 and Pro/10+
2591558Srgrimesdevice		ep		# Etherlink III based cards
2601558Srgrimesdevice		fe		# Fujitsu MB8696x based cards
2611558Srgrimesdevice		sn		# SMC's 9000 series of Ethernet chips
2621558Srgrimesdevice		xe		# Xircom pccard Ethernet
2631558Srgrimes
2641558Srgrimes# Wireless NIC cards
2651558Srgrimesdevice		wlan		# 802.11 support
2661558Srgrimesoptions 	IEEE80211_DEBUG	# enable debug msgs
2671558Srgrimesoptions 	IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's
2681558Srgrimesoptions 	IEEE80211_SUPPORT_MESH	# enable 802.11s draft support
2691558Srgrimesdevice		wlan_wep	# 802.11 WEP support
2701558Srgrimesdevice		wlan_ccmp	# 802.11 CCMP support
2711558Srgrimesdevice		wlan_tkip	# 802.11 TKIP support
2721558Srgrimesdevice		wlan_amrr	# AMRR transmit rate control algorithm
2731558Srgrimesdevice		an		# Aironet 4500/4800 802.11 wireless NICs.
2741558Srgrimesdevice		ath		# Atheros NICs
2751558Srgrimesdevice		ath_pci		# Atheros pci/cardbus glue
2761558Srgrimesdevice		ath_hal		# pci/cardbus chip support
2771558Srgrimesoptions 	AH_SUPPORT_AR5416	# enable AR5416 tx/rx descriptors
2781558Srgrimesoptions 	AH_AR5416_INTERRUPT_MITIGATION	# AR5416 interrupt mitigation
2791558Srgrimesoptions 	ATH_ENABLE_11N	# Enable 802.11n support for AR5416 and later
2801558Srgrimesdevice		ath_rate_sample	# SampleRate tx rate control for ath
2811558Srgrimes#device		bwi		# Broadcom BCM430x/BCM431x wireless NICs.
2821558Srgrimes#device		bwn		# Broadcom BCM43xx wireless NICs.
2831558Srgrimesdevice		ipw		# Intel 2100 wireless NICs.
2841558Srgrimesdevice		iwi		# Intel 2200BG/2225BG/2915ABG wireless NICs.
2851558Srgrimesdevice		iwn		# Intel 4965/1000/5000/6000 wireless NICs.
2861558Srgrimesdevice		malo		# Marvell Libertas wireless NICs.
2871558Srgrimesdevice		mwl		# Marvell 88W8363 802.11n wireless NICs.
2881558Srgrimesdevice		ral		# Ralink Technology RT2500 wireless NICs.
2891558Srgrimesdevice		wi		# WaveLAN/Intersil/Symbol 802.11 wireless NICs.
2901558Srgrimesdevice		wpi		# Intel 3945ABG wireless NICs.
2911558Srgrimes
2921558Srgrimes# Pseudo devices.
2931558Srgrimesdevice		loop		# Network loopback
2941558Srgrimesdevice		random		# Entropy device
2951558Srgrimesoptions 	PADLOCK_RNG	# VIA Padlock RNG
2961558Srgrimesoptions 	RDRAND_RNG	# Intel Bull Mountain RNG
2971558Srgrimesdevice		ether		# Ethernet support
2981558Srgrimesdevice		vlan		# 802.1Q VLAN support
2991558Srgrimesdevice		tun		# Packet tunnel.
3001558Srgrimesdevice		md		# Memory "disks"
3011558Srgrimesdevice		gif		# IPv6 and IPv4 tunneling
3021558Srgrimesdevice		faith		# IPv6-to-IPv4 relaying (translation)
3031558Srgrimesdevice		firmware	# firmware assist module
3041558Srgrimes
3051558Srgrimes# The `bpf' device enables the Berkeley Packet Filter.
3061558Srgrimes# Be aware of the administrative consequences of enabling this!
3071558Srgrimes# Note that 'bpf' is required for DHCP.
3081558Srgrimesdevice		bpf		# Berkeley packet filter
3091558Srgrimes
3101558Srgrimes# USB support
3111558Srgrimesoptions 	USB_DEBUG	# enable debug msgs
3121558Srgrimesdevice		uhci		# UHCI PCI->USB interface
3131558Srgrimesdevice		ohci		# OHCI PCI->USB interface
3141558Srgrimesdevice		ehci		# EHCI PCI->USB interface (USB 2.0)
3151558Srgrimesdevice		xhci		# XHCI PCI->USB interface (USB 3.0)
3161558Srgrimesdevice		usb		# USB Bus (required)
3171558Srgrimesdevice		ukbd		# Keyboard
3181558Srgrimesdevice		umass		# Disks/Mass storage - Requires scbus and da
3191558Srgrimes
3201558Srgrimes# Sound support
3211558Srgrimesdevice		sound		# Generic sound driver (required)
3221558Srgrimesdevice		snd_cmi		# CMedia CMI8338/CMI8738
3231558Srgrimesdevice		snd_csa		# Crystal Semiconductor CS461x/428x
3241558Srgrimesdevice		snd_emu10kx	# Creative SoundBlaster Live! and Audigy
3251558Srgrimesdevice		snd_es137x	# Ensoniq AudioPCI ES137x
3261558Srgrimesdevice		snd_hda		# Intel High Definition Audio
3271558Srgrimesdevice		snd_ich		# Intel, NVidia and other ICH AC'97 Audio
328102231Strhodesdevice		snd_via8233	# VIA VT8233x Audio
3291558Srgrimes
3301558Srgrimes# MMC/SD
3311558Srgrimesdevice		mmc		# MMC/SD bus
3321558Srgrimesdevice		mmcsd		# MMC/SD memory card
3331558Srgrimesdevice		sdhci		# Generic PCI SD Host Controller
3341558Srgrimes
3351558Srgrimes# VirtIO support
3361558Srgrimesdevice		virtio		# Generic VirtIO bus (required)
3371558Srgrimesdevice		virtio_pci	# VirtIO PCI device
3381558Srgrimesdevice		vtnet		# VirtIO Ethernet device
3391558Srgrimesdevice		virtio_blk	# VirtIO Block device
3401558Srgrimesdevice		virtio_scsi	# VirtIO SCSI device
3411558Srgrimesdevice		virtio_balloon	# VirtIO Memory Balloon device
3421558Srgrimes