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SMALLRAM revision 1.3
      1  1.3   lukem #	$NetBSD: SMALLRAM,v 1.3 2002/09/18 02:44:02 lukem Exp $
      2  1.1  scottr #
      3  1.1  scottr # This is an example of how to configure a small, efficient kernel for a
      4  1.1  scottr # system with limited RAM. Even so it's capable of doing quite a bit. The
      5  1.1  scottr # hypothetical system used for this example is a Macintosh IIx or
      6  1.1  scottr # Macintosh IIcx with 8 MB of RAM and an 80 MB disk. One or more DP5380-
      7  1.1  scottr # based NuBus Ethernet cards and one or more NuBus video cards are
      8  1.1  scottr # configured, and basic PPP support is available. This configuration is
      9  1.1  scottr # suitable for experimenting with NetBSD as a router with one or more
     10  1.1  scottr # Ethernet cards, and up to two PPP connections (one on each serial port).
     11  1.1  scottr 
     12  1.1  scottr include	"arch/mac68k/conf/std.mac68k"
     13  1.1  scottr 
     14  1.1  scottr #options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary
     15  1.1  scottr 
     16  1.3   lukem #ident 		"SMALLRAM-$Revision: 1.3 $"
     17  1.1  scottr 
     18  1.1  scottr maxusers	8
     19  1.1  scottr 
     20  1.1  scottr makeoptions	COPTS="-O2 -m68030"	# Optimize for the MC68030
     21  1.1  scottr 
     22  1.1  scottr # CPU support.  At least one is REQUIRED.
     23  1.1  scottr #options 	M68040
     24  1.1  scottr options 	M68030
     25  1.1  scottr #options 	M68020		# Note:  must have 68851 PMMU
     26  1.1  scottr 
     27  1.1  scottr # CPU-related options.
     28  1.1  scottr #options 	FPSP
     29  1.1  scottr #options 	FPU_EMULATE
     30  1.1  scottr 
     31  1.1  scottr # Standard system options
     32  1.1  scottr 
     33  1.1  scottr #options 	UCONSOLE	# users can use TIOCCONS (for xconsole)
     34  1.1  scottr #options 	INSECURE	# disable kernel security levels
     35  1.1  scottr 
     36  1.1  scottr options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
     37  1.1  scottr #options 	NTP		# NTP phase/frequency locked loop
     38  1.1  scottr 
     39  1.1  scottr options 	KTRACE		# system call tracing via ktrace(1)
     40  1.1  scottr 
     41  1.1  scottr options 	SYSVMSG		# System V-like message queues
     42  1.1  scottr options 	SYSVSEM		# System V-like semaphores
     43  1.1  scottr #options 	SEMMNI=10	# number of semaphore identifiers
     44  1.1  scottr #options 	SEMMNS=60	# number of semaphores in system
     45  1.1  scottr #options 	SEMUME=10	# max number of undo entries per process
     46  1.1  scottr #options 	SEMMNU=30	# number of undo structures in system
     47  1.1  scottr options 	SYSVSHM		# System V-like memory sharing
     48  1.1  scottr #options 	SHMMAXPGS=1024	# 1024 pages is the default
     49  1.1  scottr 
     50  1.1  scottr #options 	LKM		# loadable kernel modules
     51  1.1  scottr 
     52  1.3   lukem options 	USERCONF	# userconf(4) support
     53  1.1  scottr #options	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
     54  1.1  scottr 
     55  1.1  scottr # Diagnostic/debugging support options
     56  1.1  scottr options 	DIAGNOSTIC	# cheap kernel consistency checks
     57  1.1  scottr #options 	DEBUG		# expensive debugging checks/support
     58  1.1  scottr #options 	KMEMSTATS	# kernel memory statistics (vmstat -m)
     59  1.1  scottr options 	DDB			# in-kernel debugger
     60  1.1  scottr #options 	DDB_HISTORY_SIZE=100	# enable history editing in DDB
     61  1.1  scottr #options 	KGDB			# remote debugger
     62  1.1  scottr #options 	KGDB_DEV=0xc01		# kgdb device number (dev_t)
     63  1.1  scottr #options 	KGDB_DEVRATE=38400	# baud rate
     64  1.1  scottr #makeoptions	DEBUG="-g"	# compile full symbol table
     65  1.1  scottr 
     66  1.1  scottr # Compatibility options
     67  1.1  scottr #options 	COMPAT_NOMID	# NetBSD 0.8,
     68  1.1  scottr #options 	COMPAT_09	# NetBSD 0.9,
     69  1.1  scottr #options 	COMPAT_10	# NetBSD 1.0,
     70  1.1  scottr #options 	COMPAT_11	# NetBSD 1.1,
     71  1.1  scottr options 	COMPAT_12	# NetBSD 1.2,
     72  1.1  scottr options 	COMPAT_13	# NetBSD 1.3,
     73  1.1  scottr options 	COMPAT_14	# NetBSD 1.4,
     74  1.1  scottr options 	COMPAT_15	# NetBSD 1.5,
     75  1.1  scottr #options 	COMPAT_43	# and 4.3BSD
     76  1.1  scottr #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
     77  1.1  scottr 
     78  1.1  scottr # The following is needed to run pre-NetBSD 1.6 binaries under ELF.
     79  1.1  scottr options 	COMPAT_AOUT_M68K # compatibility with NetBSD/m68k a.out
     80  1.1  scottr options 	EXEC_AOUT	# support for exec'ing a.out
     81  1.1  scottr 
     82  1.1  scottr #options 	COMPAT_LINUX	# compatibility with Linux/m68k binaries
     83  1.1  scottr #options 	COMPAT_M68K4K	# compatibility with NetBSD/m68k4k binaries
     84  1.1  scottr #options 	COMPAT_SUNOS	# compatibility with SunOS 4.x binaries
     85  1.1  scottr #options 	COMPAT_SVR4	# compatibility with SVR4 binaries
     86  1.1  scottr 
     87  1.1  scottr # File systems
     88  1.1  scottr file-system 	FFS		# UFS
     89  1.1  scottr #file-system 	EXT2FS		# second extended file system (linux)
     90  1.1  scottr #file-system 	LFS		# log-structured file system
     91  1.1  scottr file-system 	MFS		# memory file system
     92  1.1  scottr file-system 	NFS		# Network File System client
     93  1.1  scottr #file-system 	CD9660		# ISO 9660 + Rock Ridge file system
     94  1.1  scottr #file-system 	MSDOSFS		# MS-DOS file system
     95  1.1  scottr #file-system 	FDESC		# /dev/fd
     96  1.1  scottr #file-system 	KERNFS		# /kern
     97  1.1  scottr #file-system 	NULLFS		# loopback file system
     98  1.1  scottr #file-system 	OVERLAY		# overlay file system
     99  1.1  scottr #file-system 	PORTAL		# portal filesystem (still experimental)
    100  1.1  scottr #file-system 	PROCFS		# /proc
    101  1.1  scottr #file-system 	UMAPFS		# NULLFS + uid and gid remapping
    102  1.1  scottr #file-system 	UNION		# union file system
    103  1.1  scottr #file-system 	CODA		# Venus/Coda distributed file system
    104  1.1  scottr 
    105  1.1  scottr # File system options
    106  1.1  scottr options 	QUOTA		# UFS quotas
    107  1.1  scottr #options 	FFS_EI		# FFS Endian Independant support
    108  1.1  scottr #options 	SOFTDEP		# FFS soft updates support.
    109  1.1  scottr #options 	NFSSERVER	# Network File System server
    110  1.1  scottr #options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
    111  1.1  scottr 				# immutable) behave as system flags.
    112  1.1  scottr 
    113  1.1  scottr # Networking options
    114  1.1  scottr options 	GATEWAY		# packet forwarding
    115  1.1  scottr options 	INET		# IP + ICMP + TCP + UDP
    116  1.1  scottr #options 	INET6		# IPV6
    117  1.1  scottr #options 	IPSEC		# IP security
    118  1.1  scottr #options 	IPSEC_ESP	# IP security (encryption part; define w/IPSEC)
    119  1.1  scottr #options 	IPSEC_DEBUG	# debug for IP security
    120  1.1  scottr options 	MROUTING	# IP multicast routing
    121  1.1  scottr #options 	NS		# XNS
    122  1.1  scottr #options 	NSIP		# XNS tunneling over IP
    123  1.1  scottr #options 	ISO,TPIP	# OSI
    124  1.1  scottr #options 	EON		# OSI tunneling over IP
    125  1.1  scottr #options 	CCITT,LLC,HDLC	# X.25
    126  1.1  scottr #options 	NETATALK	# AppleTalk networking protocols
    127  1.1  scottr options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
    128  1.1  scottr #options 	PPP_DEFLATE	# Deflate compression support for PPP
    129  1.1  scottr options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
    130  1.1  scottr options 	PFIL_HOOKS	# pfil(9) packet filter hooks
    131  1.1  scottr #options 	IPFILTER_LOG	# ipmon(8) log support
    132  1.1  scottr #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
    133  1.1  scottr 
    134  1.1  scottr # These options enable verbose messages for several subsystems.
    135  1.1  scottr # Warning, these may compile large string tables into the kernel!
    136  1.1  scottr #options 	SCSIVERBOSE	# human readable SCSI error messages
    137  1.1  scottr 
    138  1.1  scottr # wscons options
    139  1.1  scottr #options 	WSEMUL_SUN		# sun terminal emulation
    140  1.1  scottr options 	WSEMUL_VT100		# VT100 / VT220 emulation
    141  1.1  scottr options 	WSDISPLAY_COMPAT_ITEFONT # use ite font (6x10)
    142  1.1  scottr 
    143  1.1  scottr # rcons options; note that 1-bit and 8-bit displays are supported by default.
    144  1.1  scottr #options 	RCONS_2BPP		# Support for 2-bit display
    145  1.1  scottr #options 	RCONS_4BPP		# Support for 4-bit display
    146  1.1  scottr #options 	RCONS_16BPP		# Support for 16-bit display
    147  1.1  scottr 
    148  1.1  scottr # Mac-specific options
    149  1.1  scottr #options 	ALTXBUTTONS	# Map Opt-{1,2,3} to mouse buttons
    150  1.1  scottr #options 	DISABLE_EXT_CACHE # Don't use IIci external cache
    151  1.1  scottr options 	GRF_COMPAT	# Include grf compatibility code
    152  1.1  scottr #options 	MRG_ADB		# Use ROM-based ADB driver
    153  1.1  scottr #options 	ZS_CONSOLE_ABORT
    154  1.1  scottr 
    155  1.1  scottr 
    156  1.1  scottr # Kernel root file system and dump configuration.
    157  1.1  scottr config		netbsd	root on ? type ?
    158  1.1  scottr 
    159  1.1  scottr #
    160  1.1  scottr # Device configuration
    161  1.1  scottr #
    162  1.1  scottr 
    163  1.1  scottr mainbus0 at root
    164  1.1  scottr 
    165  1.1  scottr fpu0 at mainbus?			# Floating-Point Coprocessor support
    166  1.1  scottr 
    167  1.1  scottr 
    168  1.1  scottr # Basic Bus Support
    169  1.1  scottr 
    170  1.1  scottr # On-board I/O bus support
    171  1.1  scottr obio0 at mainbus?
    172  1.1  scottr 
    173  1.1  scottr # NuBus support
    174  1.1  scottr nubus0 at mainbus?
    175  1.1  scottr 
    176  1.1  scottr 
    177  1.1  scottr # Console Devices
    178  1.1  scottr 
    179  1.1  scottr # Apple Desktop Bus interface
    180  1.1  scottr adb0	at obio?
    181  1.1  scottr aed*	at adb?				# ADB event device
    182  1.1  scottr akbd*	at adb?				# ADB keyboard
    183  1.1  scottr ams*	at adb?				# ADB mouse
    184  1.1  scottr 
    185  1.1  scottr # Basic frame buffer support
    186  1.1  scottr #intvid0	at obio?			# Internal video hardware
    187  1.1  scottr macvid*	at nubus?			# NuBus video card
    188  1.1  scottr 
    189  1.1  scottr # Device-independent frame buffer interface
    190  1.1  scottr #macfb*	at intvid?
    191  1.1  scottr macfb*	at macvid?
    192  1.1  scottr 
    193  1.1  scottr # Workstation Console devices
    194  1.1  scottr wsdisplay0 at macfb? console ?
    195  1.1  scottr wskbd0	at akbd? console ?
    196  1.1  scottr wsmouse0 at ams?
    197  1.1  scottr 
    198  1.1  scottr 
    199  1.1  scottr # Serial Devices
    200  1.1  scottr 
    201  1.1  scottr # On-board serial interface
    202  1.1  scottr zsc0	at obio?
    203  1.1  scottr zstty*	at zsc? channel ?
    204  1.1  scottr 
    205  1.1  scottr 
    206  1.1  scottr # SCSI Controllers and Devices
    207  1.1  scottr 
    208  1.1  scottr # SCSI controllers
    209  1.1  scottr # XXX - use only one of ncrscsi or sbc
    210  1.1  scottr #ncrscsi0 at obio?			# SCSI NCR 5380
    211  1.1  scottr sbc0	at obio? flags 0x1		# MI SCSI NCR 5380
    212  1.1  scottr #esp0	at obio?			# SCSI NCR 53C9x
    213  1.1  scottr #esp1	at obio?			# SCSI NCR 53C9x
    214  1.1  scottr 
    215  1.1  scottr # SCSI bus support
    216  1.1  scottr scsibus* at scsi?
    217  1.1  scottr 
    218  1.1  scottr # SCSI devices
    219  1.1  scottr sd*	at scsibus? target ? lun ?	# SCSI disk drives
    220  1.1  scottr #st*	at scsibus? target ? lun ?	# SCSI tape drives
    221  1.1  scottr #cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
    222  1.1  scottr #ch*	at scsibus? target ? lun ?	# SCSI autochangers
    223  1.1  scottr #se*	at scsibus? target ? lun ?	# SCSI ethernet
    224  1.1  scottr #ss*	at scsibus? target ? lun ?	# SCSI scanners
    225  1.1  scottr #uk*	at scsibus? target ? lun ?	# SCSI unknown
    226  1.1  scottr 
    227  1.1  scottr # IDE controller and devices
    228  1.1  scottr #wdc*	at obio? flags 0x1000
    229  1.1  scottr #wd*	at wdc? channel ? drive ?
    230  1.1  scottr 
    231  1.1  scottr 
    232  1.1  scottr # Miscellaneous mass storage devices
    233  1.1  scottr 
    234  1.1  scottr # IWM floppy disk controller
    235  1.1  scottr #iwm0	at obio?			# Sony driver (800K GCR)
    236  1.1  scottr #fd*	at iwm? drive ?
    237  1.1  scottr 
    238  1.1  scottr 
    239  1.1  scottr # Network Interfaces
    240  1.1  scottr 
    241  1.1  scottr # On-board Ethernet controllers
    242  1.1  scottr #sn*	at obio?			# SONIC-based (DP83932, DP83916)
    243  1.1  scottr #mc*	at obio?			# MACE-based
    244  1.1  scottr 
    245  1.1  scottr # NuBus Ethernet controllers
    246  1.1  scottr ae*	at nubus?			# DP8390-based
    247  1.1  scottr #sn*	at nubus?			# SONIC-based (DP83932, DP83916)
    248  1.1  scottr #sm*	at nubus?			# SMC 91cxx-based
    249  1.1  scottr 
    250  1.1  scottr nsphy*	at mii? phy ?
    251  1.1  scottr ukphy*	at mii? phy ?
    252  1.1  scottr 
    253  1.1  scottr # Audio Devices
    254  1.1  scottr 
    255  1.1  scottr # On-board audio hardware
    256  1.1  scottr asc0	at obio?			# ASC/EASC audio
    257  1.1  scottr 
    258  1.1  scottr # Pseudo-Devices
    259  1.1  scottr 
    260  1.1  scottr # disk/mass storage pseudo-devices
    261  1.1  scottr pseudo-device	ccd		4	# concatenated/striped disk devices
    262  1.1  scottr #pseudo-device	raid		8	# RAIDframe disk driver
    263  1.1  scottr #options 	RAID_AUTOCONFIG		# auto-configuration of RAID components
    264  1.1  scottr # Options to enable various other RAIDframe RAID types.
    265  1.1  scottr # options	RF_INCLUDE_EVENODD=1
    266  1.1  scottr # options	RF_INCLUDE_RAID5_RS=1
    267  1.1  scottr # options	RF_INCLUDE_PARITYLOGGING=1
    268  1.1  scottr # options	RF_INCLUDE_CHAINDECLUSTER=1
    269  1.1  scottr # options	RF_INCLUDE_INTERDECLUSTER=1
    270  1.1  scottr # options 	RF_INCLUDE_PARITY_DECLUSTERING=1
    271  1.1  scottr # options	RF_INCLUDE_PARITY_DECLUSTERING_DS=1
    272  1.1  scottr #pseudo-device	md		1	# memory disk device (ramdisk)
    273  1.1  scottr #pseudo-device	vcoda		1	# Venus/Coda distributed file system
    274  1.1  scottr pseudo-device	vnd		4	# disk-like interface to files
    275  1.1  scottr 
    276  1.1  scottr # network pseudo-devices
    277  1.1  scottr pseudo-device	bpfilter	12	# Berkeley packet filter
    278  1.1  scottr pseudo-device	ipfilter		# IP filter (firewall) and NAT
    279  1.1  scottr pseudo-device	loop			# network loopback
    280  1.1  scottr pseudo-device	ppp		2	# Point-to-Point Protocol
    281  1.1  scottr #pseudo-device	pppoe			# PPP over Ethernet (RFC 2516)
    282  1.1  scottr #pseudo-device	sl		2	# Serial Line IP
    283  1.1  scottr #pseudo-device	strip		2	# Starmode Radio IP (Metricom)
    284  1.1  scottr pseudo-device	tun		2	# network tunneling over tty
    285  1.1  scottr #pseudo-device	gre		2	# generic L3 over IP tunnel
    286  1.1  scottr #pseudo-device	gif		4	# IPv[46] over IPv[46] tunnel (RFC1933)
    287  1.1  scottr #pseudo-device	faith		1	# IPv[46] tcp relay translation i/f
    288  1.1  scottr #pseudo-device	stf		1	# 6to4 IPv6 over IPv4 encapsulation
    289  1.1  scottr #pseudo-device	vlan			# IEEE 802.1q encapsulation
    290  1.1  scottr #pseudo-device	bridge			# simple inter-network bridging
    291  1.1  scottr 
    292  1.1  scottr # miscellaneous pseudo-devices
    293  1.1  scottr pseudo-device	grf		2	# grf emulation for wscons
    294  1.1  scottr pseudo-device	ite		1	# ite emulation for wscons
    295  1.1  scottr pseudo-device	pty			# pseudo-terminals
    296  1.1  scottr #pseudo-device	tb		1	# tablet line discipline
    297  1.2   lukem pseudo-device	clockctl		# user control of clock subsystem
    298  1.1  scottr 
    299  1.1  scottr # rnd is EXPERIMENTAL at this point.
    300  1.1  scottr #pseudo-device	rnd			# /dev/random and in-kernel generator
    301  1.1  scottr #options 	RND_COM			# use "com" randomness as well (BROKEN)
    302