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GENERIC revision 1.144
      1 # $NetBSD: GENERIC,v 1.144 2008/12/20 01:05:46 isaki Exp $
      2 #
      3 # GENERIC machine description file
      4 # 
      5 # This machine description file is used to generate the default NetBSD
      6 # kernel.  The generic kernel does not include all options, subsystems
      7 # and device drivers, but should be useful for most applications.
      8 #
      9 # The machine description file can be customised for your specific
     10 # machine to reduce the kernel size and improve its performance.
     11 #
     12 # For further information on compiling NetBSD kernels, see the config(8)
     13 # man page.
     14 #
     15 # For further information on hardware support for this architecture, see
     16 # the intro(4) man page.  For further information about kernel options
     17 # for this architecture, see the options(4) man page.  For an explanation
     18 # of each device driver in this file see the section 4 man page for the
     19 # device.
     20 
     21 include 	"arch/x68k/conf/std.x68k"
     22 
     23 options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary
     24 
     25 #ident 		"GENERIC-$Revision: 1.144 $"
     26 
     27 maxusers	8
     28 
     29 ## System kernel configuration.  See options(4) for more detail.
     30 
     31 
     32 ## Options for variants of the m68k MPU
     33 ## you must have at least the correct one; REQUIRED
     34 options 	M68030
     35 options 	M68040
     36 options 	M68060
     37 ## If you want an optimized kernel for a specific processor, use either:
     38 #makeoptions	CMACHFLAGS="-m68030"
     39 #makeoptions	CMACHFLAGS="-m68040 -Wa,-m68030 -Wa,-m68851"
     40 #makeoptions	CMACHFLAGS="-m68060 -Wa,-m68030 -Wa,-m68851"
     41 
     42 
     43 #### System options specific to the x68k port
     44 
     45 options 	EXTENDED_MEMORY		# support for >16MB memory
     46 options 	FPU_EMULATE		# software fpu emulation for MC68030
     47 options 	FPSP			# floating point emulation for MC68040
     48 options 	M060SP			# int/fp emulation for MC68060
     49 #options 	JUPITER			# support for "Jupiter-X" accelerator
     50 #options 	MAPPEDCOPY		# use page mapping for large copyin/copyout
     51 #options 	ZSCONSOLE,ZSCN_SPEED="9600"	# use serial console
     52 
     53 
     54 #### System options that are the same for all ports
     55 
     56 ## Root device configuration: change the ?'s if you are going to use a
     57 ## nonstandard root partition (other than where the kernel is booted from)
     58 ## and/or nonstandard root type (not ffs or nfs).  Normally this can be
     59 ## automagically determined at boot time.
     60 
     61 config		netbsd	root on ? type ?
     62 #config		netbsd	root on sd0 type ffs
     63 
     64 ## RTC is offset from GMT; -540 means JST-9
     65 options 	RTC_OFFSET=-540	# hardware clock is this many mins. west of GMT
     66 
     67 ## System call tracing (see ktrace(1)).
     68 options 	KTRACE
     69 
     70 ## Collect statistics on kernel malloc's and free's.  This does have a
     71 ## significant performance hit on slower machines, so it is intended for
     72 ## diagnostic use only.
     73 #options 	KMEMSTATS
     74 
     75 ## System V compatible IPC subsystem.  (msgctl(2), semctl(2), and shmctl(2))
     76 options 	SYSVMSG		# System V message queues
     77 options 	SYSVSEM		# System V semaphores
     78 options 	SYSVSHM		# System V shared memory
     79 options 	P1003_1B_SEMAPHORE # p1003.1b semaphore support
     80 
     81 ## Loadable kernel module support
     82 
     83 options 	USERCONF	# userconf(4) support
     84 #options 	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
     85 options 	SYSCTL_INCLUDE_DESCR	# Include sysctl descriptions in kernel
     86 
     87 # Enable experimental buffer queue strategy for better responsiveness under 
     88 # high disk I/O load. Use it with caution - it's not proven to be stable yet.
     89 #options 	BUFQ_READPRIO
     90 #options 	BUFQ_PRIOCSCAN
     91 
     92 ## NFS boot options; not supported currently: needs nfsboot program
     93 #options 	NFS_BOOT_BOOTPARAM
     94 #options 	NFS_BOOT_BOOTP
     95 #options 	NFS_BOOT_DHCP
     96 
     97 #### Debugging options
     98 
     99 ## The DDB in-kernel debugger runs at panic (unless DDB_ONPANIC=0), or at
    100 ## serial console break or keyboard reset, where the PROM would normally
    101 ## intercept.  DDB_HISTORY_SIZE adds up/down arrow command history.
    102 #options 	DDB			# kernel dynamic debugger
    103 #options 	DDB_HISTORY_SIZE=100	# enable history editing in DDB
    104 #options 	DDB_ONPANIC=1		# see also sysctl(8): `ddb.onpanic'
    105 #options 	PANICBUTTON		# interrupt switch invokes DDB
    106 
    107 ## You may also use gdb, on another computer connected to this machine over
    108 ## a serial port.  Both KGDB_DEV and KGDB_DEVRATE should be specified;
    109 ## KGDB_DEV is a dev_t encoded device number of the serial port to use.
    110 ## KGDB is not supported for now.
    111 #options 	KGDB			# support for kernel gdb
    112 #options 	KGDB_DEV=0xc00		# kgdb device number
    113 #options 	KGDB_DEVRATE=9600	# baud rate
    114 
    115 ## Compile the kernel with debugging symbols (`netbsd.gdb' is the debug file),
    116 ## such that gdb(1) can be used on a kernel coredump.
    117 
    118 #makeoptions	DEBUG="-g"
    119 
    120 ## Adds code to the kernel that does internal consistency checks, and will
    121 ## cause the kernel to panic if corruption of internal data structures
    122 ## is detected.
    123 #options 	DIAGNOSTIC	# extra kernel sanity checking
    124 
    125 ## Enable (possibly expensive) debugging code that may also display messages
    126 ## on the system console
    127 #options 	DEBUG
    128 
    129 ## These options enable verbose messages for several subsystems.
    130 ## Warning, these may compile large string tables into the kernel!
    131 #options 	SCSIVERBOSE	# human readable SCSI error messages
    132 #options 	USBVERBOSE	# verbose USB device autoconfig messages
    133 
    134 ## `INSECURE' turns off the kernel security level (securelevel = 0 always).
    135 ## This allows writing to /dev/mem, loading kernel modules while multi-user,
    136 ## and other insecurities good only for development work.  Do not use this
    137 ## option on a production machine.
    138 #options 	INSECURE
    139 
    140 ## `FDSCRIPTS' allows non-readable but executable scripts by providing a
    141 ## pre-opened opaque file to the script interpreter.  `SETUIDSCRIPTS',
    142 ## which implies FDSCRIPTS, allows scripts to be set-user-id using the same
    143 ## opaque file mechanism.  Perl calls this "secure setuid scripts."
    144 
    145 #options 	FDSCRIPTS
    146 #options 	SETUIDSCRIPTS
    147 
    148 ## Options for compatibility with previous releases foreign system binaries.
    149 
    150 options 	COMPAT_43	# 4.3BSD system interfaces
    151 options 	COMPAT_09	# NetBSD 0.9 binary compatibility
    152 options 	COMPAT_10	# NetBSD 1.0 binary compatibility
    153 options 	COMPAT_11	# NetBSD 1.1 binary compatibility
    154 options 	COMPAT_12	# NetBSD 1.2 binary compatibility
    155 options 	COMPAT_13	# NetBSD 1.3 binary compatibility
    156 options 	COMPAT_14	# NetBSD 1.4 binary compatibility
    157 options 	COMPAT_15	# NetBSD 1.5 binary compatibility
    158 options 	COMPAT_16	# NetBSD 1.6 binary compatibility
    159 options 	COMPAT_20	# NetBSD 2.0 binary compatibility
    160 options 	COMPAT_30	# NetBSD 3.0 compatibility.
    161 options 	COMPAT_40	# NetBSD 4.0 compatibility.
    162 options 	COMPAT_AOUT_M68K # compatibility with NetBSD/m68k a.out
    163 #options 	COMPAT_M68K4K	# NetBSD/m68k4k binaries
    164 #options 	COMPAT_SUNOS	# SunOS 4.x binary compatibility; broken
    165 #options 	COMPAT_SVR4	# SVR4 binary compatibility; broken
    166 #options 	COMPAT_LINUX	# Linux/m68k binary compatibility
    167 #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
    168 options 	COMPAT_BSDPTY	# /dev/[pt]ty?? ptys.
    169 
    170 ## File systems.
    171 file-system	FFS		# Berkeley Fast Filesystem
    172 file-system	NFS		# Sun NFS-compatible filesystem client
    173 file-system	KERNFS		# kernel data-structure filesystem
    174 #file-system	NULLFS		# NULL layered filesystem (buggy)
    175 #file-system 	OVERLAY		# overlay file system
    176 file-system	MFS		# memory-based filesystem
    177 #file-system	FDESC		# user file descriptor filesystem
    178 file-system	UMAPFS		# uid/gid remapping filesystem
    179 #file-system	LFS		# Log-structured filesystem (experimental)
    180 #file-system	PORTAL		# portal filesystem (experimental)
    181 file-system	PROCFS		# /proc
    182 file-system	CD9660		# ISO 9660 + Rock Ridge file system
    183 #file-system	UNION		# union file system (a little buggy)
    184 file-system	MSDOSFS		# MS-DOS FAT filesystem(s).
    185 #file-system 	ADOSFS		# AmigaDOS filesystem
    186 file-system	PTYFS		# /dev/pts/N support
    187 #file-system	TMPFS		# Efficient memory file-system
    188 #file-system	UDF		# experimental - OSTA UDF CD/DVD file-system
    189 
    190 ## File system options.
    191 options 	NFSSERVER	# Sun NFS-compatible filesystem server
    192 #options 	QUOTA		# FFS quotas
    193 #options 	FFS_EI		# FFS Endian Independent support
    194 options 	WAPBL		# File system journaling support - Experimental
    195 #options 	UFS_DIRHASH	# UFS Large Directory Hashing - Experimental
    196 options 	FFS_NO_SNAPSHOT	# No FFS snapshot support
    197 
    198 ## Network protocol support.  In most environments, INET is required.
    199 options 	INET		# IP (Internet Protocol) v4
    200 options 	INET6		# IPV6
    201 #options 	IPSEC		# IP security
    202 #options 	IPSEC_ESP	# IP security (encryption part; define w/IPSEC)
    203 #options 	IPSEC_NAT_T	# IPsec NAT traversal (NAT-T)
    204 #options 	IPSEC_DEBUG	# debug for IP security
    205 #options 	GATEWAY		# packet forwarding ("router switch")
    206 #options 	MROUTING	# packet forwarding of multicast packets
    207 #options 	PIM		# Protocol Independent Multicast
    208 #options 	DIRECTED_BROADCAST	# allow broadcasts through routers
    209 #options 	ISO,TPIP	# OSI networking
    210 #options 	EON		# OSI tunneling over IP
    211 #options 	NETATALK	# AppleTalk (over Ethernet) protocol
    212 #options 	NTP		# Network Time Protocol in-kernel support
    213 #options 	PPS_SYNC	# Add serial line synchronization for NTP
    214 options 	PFIL_HOOKS	# Add pfil(9) hooks, intended for custom LKMs.
    215 #options 	IPFILTER_LOG	# Add ipmon(8) logging for ipfilter device
    216 #options 	IPFILTER_LOOKUP	# ippool(8) support
    217 #options 	IPFILTER_DEFAULT_BLOCK	# block all packets by default
    218 #options 	PPP_BSDCOMP	# Add BSD compression to ppp device
    219 #options 	PPP_DEFLATE	# Add deflate (libz) compression to ppp device
    220 #options 	PPP_FILTER	# Add active filters for ppp (via bpf)
    221 #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
    222 
    223 #options 	ALTQ		# Manipulate network interfaces' output queues
    224 #options 	ALTQ_BLUE	# Stochastic Fair Blue
    225 #options 	ALTQ_CBQ	# Class-Based Queueing
    226 #options 	ALTQ_CDNR	# Diffserv Traffic Conditioner
    227 #options 	ALTQ_FIFOQ	# First-In First-Out Queue
    228 #options 	ALTQ_FLOWVALVE	# RED/flow-valve (red-penalty-box)
    229 #options 	ALTQ_HFSC	# Hierarchical Fair Service Curve
    230 #options 	ALTQ_LOCALQ	# Local queueing discipline
    231 #options 	ALTQ_PRIQ	# Priority Queueing
    232 #options 	ALTQ_RED	# Random Early Detection
    233 #options 	ALTQ_RIO	# RED with IN/OUT
    234 #options 	ALTQ_WFQ	# Weighted Fair Queueing
    235 
    236 
    237 #### Device configurations
    238 
    239 ## Fundamental devices; see also std.x68k
    240 dmac0	at intio0 addr 0xe84000		# DMA controller
    241 xel0	at intio0
    242 opm0	at intio0 addr 0xe90000		# OPM: required for fdc
    243 
    244 ## Display devices and console
    245 grfbus0	at mainbus0			# bitmapped displays
    246 grf0	at grfbus0 addr 0		# multiplane graphics
    247 grf1	at grfbus0 addr 1		# flexible graphics
    248 
    249 kbd0	at mfp0				# standard keyboard
    250 ite0	at grf0 grfaddr 0		# internal terminal emulator
    251 options 	ITE_KERNEL_ATTR=4	# bold for kernel messages
    252 					# see /sys/arch/x68k/dev/itevar.h
    253 pow0	at mfp0				# software power switch
    254 
    255 ## floppy disks
    256 fdc0	at intio0 addr 0xe94000 intr 96 dma 0 dmaintr 100 # floppy controller
    257 fd*	at fdc0 unit ?			# builtin floppy drives
    258 
    259 ## SCSI devices
    260 scsirom0 at intio0 addr 0xfc0000		# Built-in SCSI BIOS
    261 scsirom1 at intio0 addr 0xea0020		# External SCSI BIOS
    262 spc0	at scsirom0				# genuin SCSI
    263 spc1	at scsirom1				# genuin SCSI
    264 scsibus* at spc?
    265 mha0	at scsirom1				# Mankai MK-HA1 (Mach-2)
    266 scsibus* at mha0
    267 
    268 sd*	at scsibus? target ? lun ?	# SCSI disks
    269 cd*	at scsibus? target ? lun ?	# SCSI CD-ROMs
    270 #st*	at scsibus? target ? lun ?	# SCSI tapes
    271 #ss*	at scsibus? target ? lun ?	# SCSI scanners
    272 #ch*	at scsibus? target ? lun ?	# SCSI changer devices
    273 #uk*	at scsibus? target ? lun ?	# SCSI unknown devices
    274 
    275 ## Ports
    276 zsc0	at intio0 addr 0xe98000 intr 112
    277 zstty0	at zsc0 channel 0		# built-in RS-232C
    278 ms0	at zsc0 channel 1		# standard mouse
    279 #zsc1	at intio0 addr 0xeafc00 intr 113
    280 #zstty2	at zsc1 channel 0
    281 #zstty3	at zsc1 channel 1
    282 #zsc2	at intio0 addr 0xeafc10 intr 114
    283 #zstty4	at zsc2 channel 0
    284 #zstty5	at zsc2 channel 1
    285 par0	at intio0 addr 0xe8c000 	# Builtin printer port
    286 
    287 pseudo-device	sram			# battery-backuped static RAM
    288 pseudo-device	bell			# OPM bell
    289 
    290 xcom0	at mainbus0			# NS16550 fast serial
    291 xcom1	at mainbus0
    292 
    293 ## Audio device
    294 vs0 at intio0 addr 0xe92000 dma 3 dmaintr 106
    295 audio*	at vs?
    296 
    297 ## Network interfaces
    298 ne*	at intio0 addr 0xece300 intr 249	# Nereid Ethernet
    299 ne*	at intio0 addr 0xeceb00 intr 248	# Nereid Ethernet
    300 neptune0 at intio0 addr 0xece000 intr 249	# Neptune-X
    301 neptune1 at intio0 addr 0xece400 intr 249	# Neptune-X at alt. addr.
    302 ne*	at neptune? addr 0x300			# NE2000 or clone
    303 
    304 ## Bank memory disk
    305 bmd*	at intio0 addr 0xece3f0		# Nereid
    306 bmd*	at intio0 addr 0xecebf0		# Nereid
    307 
    308 ## MII/PHY support for USB ethernet
    309 #acphy*	at mii? phy ?
    310 
    311 ## USB Controller and Devices; Experimental
    312 
    313 # Nereid USB controllers
    314 #slhci0	at intio0 addr 0xece380 intr 251
    315 #slhci1	at intio0 addr 0xeceb80 intr 250
    316 #options 	SLHCI_DEBUG
    317 
    318 # USB bus support
    319 #usb*	at slhci?
    320 
    321 # USB Hubs
    322 #uhub*	at usb?
    323 #uhub*	at uhub? port ?
    324 
    325 # USB HID device
    326 #uhidev*	at uhub? port ? configuration ? interface ?
    327 
    328 # USB Mice; not supported wscons yet
    329 #ums*	at uhidev? reportid ?
    330 #wsmouse* at ums? mux 0
    331 
    332 # USB Keyboards; not supported wscons yet
    333 #ukbd*	at uhidev? reportid ?
    334 #wskbd*	at ukbd? console ? mux 1
    335 
    336 # USB serial adapter
    337 #ucycom*	at uhidev? reportid ?
    338 
    339 # USB Generic HID devices
    340 #uhid*	at uhidev? reportid ?
    341 
    342 # USB Printer
    343 #ulpt*	at uhub? port ? configuration ? interface ?
    344 
    345 # USB Modem
    346 #umodem*	at uhub? port ? configuration ?
    347 #ucom*	at umodem?
    348 
    349 # USB Mass Storage; wd not supported
    350 #umass*	at uhub? port ? configuration ? interface ?
    351 #atapibus* at umass? channel ?
    352 #scsibus* at umass? channel ?
    353 #wd* at umass?
    354 
    355 # USB audio
    356 #uaudio*	at uhub? port ? configuration ?
    357 
    358 # USB MIDI
    359 #umidi* at uhub? port ? configuration ?
    360 
    361 # USB IrDA
    362 # USB-IrDA bridge spec
    363 #uirda* at uhub? port ? configuration ? interface ?
    364 #irframe* at uirda?
    365 
    366 # SigmaTel STIr4200 USB/IrDA Bridge
    367 #ustir* at uhub? port ?
    368 #irframe* at ustir?
    369 
    370 # USB Ethernet adapters
    371 #aue*	at uhub? port ?		# ADMtek AN986 Pegasus based adapters
    372 #axe*	at uhub? port ?		# ASIX AX88172 based adapters
    373 #cue*	at uhub? port ?		# CATC USB-EL1201A based adapters
    374 #kue*	at uhub? port ?		# Kawasaki LSI KL5KUSB101B based adapters
    375 #url*	at uhub? port ?		# Realtek RTL8150L based adapters
    376 #udav*	at uhub? port ?		# Davicom DM9601 based adapters
    377 
    378 # Prolific PL2301/PL2302 host-to-host adapter
    379 #upl*	at uhub? port ?
    380 
    381 # Serial adapters
    382 #uftdi*	at uhub? port ?		# FTDI FT8U100AX serial adapter
    383 #ucom*	at uftdi? portno ?
    384 
    385 #umct*	at uhub? port ?		# MCT USB-RS232 serial adapter
    386 #ucom*	at umct? portno ?
    387 
    388 #uplcom*	at uhub? port ?		# I/O DATA USB-RSAQ2 serial adapter
    389 #ucom*	at uplcom? portno ?
    390 
    391 #uvscom*	at uhub? port ?		# SUNTAC Slipper U VS-10U serial adapter
    392 #ucom*	at uvscom? portno ?
    393 
    394 # Diamond Multimedia Rio 500
    395 #urio*	at uhub? port ?
    396 
    397 # USB Handspring Visor
    398 #uvisor*	at uhub? port ?
    399 #ucom*	at uvisor?
    400 
    401 # Kyocera AIR-EDGE PHONE
    402 #ukyopon* at uhub? port ?
    403 #ucom*	at ukyopon? portno ?
    404 
    405 # USB scanners
    406 #uscanner* at uhub? port ?
    407 
    408 # USB scanners that use SCSI emulation, e.g., HP5300
    409 #usscanner* at uhub? port ?
    410 #scsibus* at usscanner? channel ?
    411 
    412 # Y@P firmware loader
    413 #uyap* at uhub? port ?
    414 
    415 # D-Link DSB-R100 USB radio
    416 #udsbr*	at uhub? port ?
    417 #radio*	at udsbr?
    418 
    419 # USB Generic driver
    420 #ugen*	at uhub? port ?
    421 
    422 
    423 #### Pseudo devices
    424 
    425 #
    426 # accept filters
    427 pseudo-device   accf_data		# "dataready" accept filter
    428 pseudo-device   accf_http		# "httpready" accept filter
    429 
    430 ## A disk-like interface to files.  Can be used to create floppy, CD,
    431 ## miniroot images, etc.
    432 
    433 pseudo-device	vnd	
    434 #options 	VND_COMPRESSION		# compressed vnd(4)
    435 
    436 ## Concatenated and striped disks; with this, you can create a software-based
    437 ## disk array similar to a "RAID 0" setup.  See ccd(4).
    438 
    439 #pseudo-device	ccd	4
    440 
    441 ## Cryptographic disk devices.  See cgd(4).
    442 
    443 #pseudo-device	cgd	4
    444 
    445 ## RAIDframe disk driver: software RAID driver.  See raid(4).
    446 
    447 pseudo-device	raid	8
    448 options 	RAID_AUTOCONFIG		# auto-configuration of RAID components
    449 # Options to enable various other RAIDframe RAID types.
    450 # options 	RF_INCLUDE_EVENODD=1
    451 # options 	RF_INCLUDE_RAID5_RS=1
    452 # options 	RF_INCLUDE_PARITYLOGGING=1
    453 # options 	RF_INCLUDE_CHAINDECLUSTER=1
    454 # options 	RF_INCLUDE_INTERDECLUSTER=1
    455 # options 	RF_INCLUDE_PARITY_DECLUSTERING=1
    456 # options 	RF_INCLUDE_PARITY_DECLUSTERING_DS=1
    457 
    458 
    459 ## Memory disk device, used on boot floppies with compressed
    460 ## kernel-plus-root-disk images.
    461 
    462 #pseudo-device	md	1
    463 
    464 ## Loopback network interface; required
    465 pseudo-device	loop
    466 
    467 ## SLIP and CSLIP interfaces, for IP over a serial line.
    468 pseudo-device	sl		
    469 
    470 ## PPP, the successor to SLIP.  See pppd(8).
    471 pseudo-device	ppp		
    472 
    473 ## PPP over Ethernet (RFC 2516)
    474 pseudo-device	pppoe
    475 
    476 ## Network "tunnel" device, allowing protocol stacks to run in the userland.
    477 ## This is used by the third-party user-mode "ppp" program, and others.
    478 #pseudo-device	tun		
    479 #pseudo-device	tap			# virtual Ethernet
    480 
    481 ## Generic L3 over IP tunnel
    482 #pseudo-device	gre			# generic L3 over IP tunnel
    483 
    484 ## Berkeley Packet Filter, required to run RARPD.  A generic C-language
    485 ## interface that allows selective examining of incoming packets.
    486 pseudo-device	bpfilter
    487 
    488 #pseudo-device	carp			# Common Address Redundancy Protocol
    489 
    490 ## IP Filter, used in firewall and NAT applications.  See ipnat(8) for
    491 ## one example of the use of the IP Filter.
    492 #pseudo-device	ipfilter
    493 
    494 ## for IPv6
    495 pseudo-device	gif			# IPv[46] over IPv[46] tunnel (RFC1933)
    496 #pseudo-device	faith			# IPv[46] tcp relay translation i/f
    497 pseudo-device	stf			# 6to4 IPv6 over IPv4 encapsulation
    498 
    499 ## IEEE 802.1Q Virtual LAN encapsulation, see vlan(4).
    500 pseudo-device	vlan
    501 
    502 ## Simple inter-network traffic bridging
    503 pseudo-device	bridge
    504 #options 	BRIDGE_IPF		# bridge uses IP/IPv6 pfil hooks too
    505 pseudo-device	agr			# IEEE 802.3ad link aggregation
    506 
    507 #### Other device configuration
    508 
    509 ## Pseudo ttys, required for network logins and programs like screen.
    510 
    511 pseudo-device	pty			# pseudo-terminals
    512 
    513 ## Random device, used to implement /dev/random (a source of random noise),
    514 ## and generate randomness for some kernel formulae.
    515 
    516 pseudo-device	rnd
    517 
    518 pseudo-device	clockctl		# user control of clock subsystem
    519 pseudo-device	ksyms			# /dev/ksyms
    520 #pseudo-device	pf			# PF packet filter
    521 #pseudo-device	pflog			# PF log if
    522 pseudo-device	fss		4	# file system snapshot device
    523 
    524 # Veriexec
    525 #
    526 # a pseudo device needed for veriexec
    527 #pseudo-device	veriexec		1
    528 #
    529 # Uncomment the fingerprint methods below that are desired. Note that
    530 # removing fingerprint methods will have almost no impact on the kernel
    531 # code size.
    532 #
    533 #options VERIFIED_EXEC_FP_RMD160
    534 #options VERIFIED_EXEC_FP_SHA256
    535 #options VERIFIED_EXEC_FP_SHA384
    536 #options VERIFIED_EXEC_FP_SHA512
    537 #options VERIFIED_EXEC_FP_SHA1
    538 #options VERIFIED_EXEC_FP_MD5
    539