xref: /freebsd-10.0-release/sys/ia64/conf/NOTES

# $FreeBSD: head/sys/ia64/conf/NOTES 141369 2005-02-05 21:01:09Z njl $
#
# This file contains machine dependent kernel configuration notes.  For
# machine independent notes, look in /sys/conf/NOTES.

# directive: machine
# This directive is mandatory.  It defines the architecture to be configured
# for. It can only be ia64 at this time.
#
machine		ia64

# directive: cpu
# You must specify at least one CPU (the one you intend to run on). Deleting
# the support for CPUs you don't need to use may make parts of the system run
# faster. There's currently no special code for the different CPUs. Note also
# that the cpu declares the family. We may need to add support for specifying
# particular models.
cpu		ITANIUM
cpu		ITANIUM2

# option: COMPAT_IA32
# This option enables the support for execution of i386 (32-bit) programs on
# ia64. It is based on the ia32 emulation in the processor.
options		COMPAT_IA32

# option: LOG2_ID_PAGE_SIZE
# Specify the log2 size of the identity (direct) mappings in regions 6 and 7
# of the virtual address space.
options 	LOG2_ID_PAGE_SIZE=27		# 128M

# option: LOG2_PAGE_SIZE
# Specify the log2 size of the page to be used for virtual memory management.
# The page size being equal to 1<<LOG2_PAGE_SIZE.
options		LOG2_PAGE_SIZE=15		# 32K

# option: SKI
# Build support for running under the ski simulator.
options		SKI

# option: UWX_TRACE_ENABLE
# Build the unwinder with tracing support. This option is used to debug the
# unwinder itself and the glue around it.
options		UWX_TRACE_ENABLE

# MI options
options		ACPI_DEBUG
options		KSTACK_PAGES=3

device		acpi

# Support for ACPI CPU Performance states via cpufreq(4)
device		acpi_perf

device		agp
device		eisa
device		isa
device		pci

# The following devices are not supported.
nodevice	fdc
nooption	FDC_DEBUG
nodevice	sio
nooption	COM_ESP
nooption	CONSPEED