defconfig

open source bios with linux platform, very good and can be reused.

#
# Automatically generated make config: don't edit
#
CONFIG_X86=y
CONFIG_LITTLE_ENDIAN=y

#
# Kernel binaries (x86)
#
CONFIG_IMAGE_ELF=y
CONFIG_IMAGE_ELF_EMBEDDED=y
CONFIG_IMAGE_ELF_MULTIBOOT=y

#
# Build hosted UNIX Binary
#
CONFIG_HOST_UNIX=y
# CONFIG_PLUGIN_PCI is not set

#
# Kernel Debugging
#
# CONFIG_DEBUG is not set
CONFIG_DEBUG_CONSOLE=y
CONFIG_DEBUG_CONSOLE_SERIAL=y
CONFIG_SERIAL_PORT=1
CONFIG_SERIAL_SPEED=115200
CONFIG_DEBUG_CONSOLE_VGA=y

#
# Module Configuration
#
CONFIG_CMDLINE=y
CONFIG_DEBLOCKER=y

#
# Filesystem Configuration
#
CONFIG_DISK_LABEL=y
CONFIG_PART_SUPPORT=y
CONFIG_PC_PARTS=y
CONFIG_FS=y
CONFIG_GRUBFS=y
CONFIG_FSYS_EXT2FS=y
CONFIG_FSYS_FAT=y
CONFIG_FSYS_JFS=y
# CONFIG_FSYS_MINIX is not set
CONFIG_FSYS_REISERFS=y
CONFIG_FSYS_XFS=y
CONFIG_FSYS_ISO9660=y
# CONFIG_FSYS_FFS is not set
# CONFIG_FSYS_VSTAFS is not set
# CONFIG_DEBUG_FS is not set

#
# Miscellaneous
#
CONFIG_LINUXBIOS=y

#
# Drivers
#
CONFIG_DRIVER_PCI=y
CONFIG_DRIVER_IDE=y
# CONFIG_DEBUG_IDE is not set