NetBSD-5.0.2/sys/arch/i386/conf/std.i386

# $NetBSD: std.i386,v 1.28 2008/04/30 15:29:12 ad Exp $
#
# standard, required NetBSD/i386 'options'

machine i386 x86
include		"conf/std"	# MI standard options

options 	EXEC_AOUT	# exec a.out binaries
options 	EXEC_ELF32	# exec ELF binaries
options 	EXEC_SCRIPT	# exec #! scripts
options 	CPU_IN_CKSUM
#options 	CRYPTO_MD_DES_ENC	# machine-dependant code for DES
#options 	CRYPTO_MD_DES_CBC	# machine-dependant DES CBC code
#options 	CRYPTO_MD_BF_ENC	# machine-dependant code for BF_encrypt
#options 	CRYPTO_MD_BF_CBC	# careful: uses bswapl, requires 486
options		MULTIPROCESSOR		# multiprocessor supprot
options 	MPBIOS			# configure CPUs and APICs using MPBIOS

mainbus0 at root
cpu* at mainbus?
ioapic* at mainbus?