NOTES revision 152865 
1# $FreeBSD: head/sys/ia64/conf/NOTES 152865 2005-11-27 23:17:00Z ru $
2#
3# This file contains machine dependent kernel configuration notes.  For
4# machine independent notes, look in /sys/conf/NOTES.
5
6# directive: cpu
7# You must specify at least one CPU (the one you intend to run on). Deleting
8# the support for CPUs you don't need to use may make parts of the system run
9# faster. There's currently no special code for the different CPUs. Note also
10# that the cpu declares the family. We may need to add support for specifying
11# particular models.
12cpu		ITANIUM
13cpu		ITANIUM2
14
15# option: COMPAT_IA32
16# This option enables the support for execution of i386 (32-bit) programs on
17# ia64. It is based on the ia32 emulation in the processor.
18options		COMPAT_IA32
19
20# option: LOG2_ID_PAGE_SIZE
21# Specify the log2 size of the identity (direct) mappings in regions 6 and 7
22# of the virtual address space.
23options 	LOG2_ID_PAGE_SIZE=27		# 128M
24
25# option: LOG2_PAGE_SIZE
26# Specify the log2 size of the page to be used for virtual memory management.
27# The page size being equal to 1<<LOG2_PAGE_SIZE.
28options		LOG2_PAGE_SIZE=15		# 32K
29
30# option: SKI
31# Build support for running under the ski simulator.
32options		SKI
33
34# option: UWX_TRACE_ENABLE
35# Build the unwinder with tracing support. This option is used to debug the
36# unwinder itself and the glue around it.
37options		UWX_TRACE_ENABLE
38
39# MI options
40options		ACPI_DEBUG
41options		KSTACK_PAGES=3
42
43device		acpi
44
45device		agp
46device		eisa
47device		isa
48device		pci
49
50# The following devices are not supported.
51nodevice	fdc
52nooption	FDC_DEBUG
53nodevice	sio
54nooption	COM_ESP
55nooption	CONSPEED
56