path: root/linux-2.6.11-xen-sparse/arch/xen/i386/Kconfig

#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#

menu "X86 Processor Configuration"

config XENARCH
	string
	default i386

config X86
	bool
	default y
	help
	  This is Linux's home port.  Linux was originally native to the Intel
	  386, and runs on all the later x86 processors including the Intel
	  486, 586, Pentiums, and various instruction-set-compatible chips by
	  AMD, Cyrix, and others.

config MMU
	bool
	default y

config SBUS
	bool

config UID16
	bool
	default y

config GENERIC_ISA_DMA
	bool
	default y

config GENERIC_IOMAP
	bool
	default y

choice
	prompt "Processor family"
	default M686

config M386
	bool "386"
	---help---
	  This is the processor type of your CPU. This information is used for
	  optimizing purposes. In order to compile a kernel that can run on
	  all x86 CPU types (albeit not optimally fast), you can specify
	  "386" here.

	  The kernel will not necessarily run on earlier architectures than
	  the one you have chosen, e.g. a Pentium optimized kernel will run on
	  a PPro, but not necessarily on a i486.

	  Here are the settings recommended for greatest speed:
	  - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
	  486DLC/DLC2, UMC 486SX-S and NexGen Nx586.  Only "386" kernels
	  will run on a 386 class machine.
	  - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
	  SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
	  - "586" for generic Pentium CPUs lacking the TSC
	  (time stamp counter) register.
	  - "Pentium-Classic" for the Intel Pentium.
	  - "Pentium-MMX" for the Intel Pentium MMX.
	  - "Pentium-Pro" for the Intel Pentium Pro.
	  - "Pentium-II" for the Intel Pentium II or pre-Coppermine Celeron.
	  - "Pentium-III" for the Intel Pentium III or Coppermine Celeron.
	  - "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
	  - "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
	  - "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
	  - "Crusoe" for the Transmeta Crusoe series.
	  - "Efficeon" for the Transmeta Efficeon series.
	  - "Winchip-C6" for original IDT Winchip.
	  - "Winchip-2" for IDT Winchip 2.
	  - "Winchip-2A" for IDT Winchips with 3dNow! capabilities.
	  - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
	  - "VIA C3-2 for VIA C3-2 "Nehemiah" (model 9 and above).

	  If you don't know what to do, choose "386".

config M486
	bool "486"
	help
	  Select this for a 486 series processor, either Intel or one of the
	  compatible processors from AMD, Cyrix, IBM, or Intel.  Includes DX,
	  DX2, and DX4 variants; also SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or
	  U5S.

config M586
	bool "586/K5/5x86/6x86/6x86MX"
	help
	  Select this for an 586 or 686 series processor such as the AMD K5,
	  the Cyrix 5x86, 6x86 and 6x86MX.  This choice does not
	  assume the RDTSC (Read Time Stamp Counter) instruction.

config M586TSC
	bool "Pentium-Classic"
	help
	  Select this for a Pentium Classic processor with the RDTSC (Read
	  Time Stamp Counter) instruction for benchmarking.

config M586MMX
	bool "Pentium-MMX"
	help
	  Select this for a Pentium with the MMX graphics/multimedia
	  extended instructions.

config M686
	bool "Pentium-Pro"
	help
	  Select this for Intel Pentium Pro chips.  This enables the use of
	  Pentium Pro extended instructions, and disables the init-time guard
	  against the f00f bug found in earlier Pentiums.

config MPENTIUMII
	bool "Pentium-II/Celeron(pre-Coppermine)"
	help
	  Select this for Intel chips based on the Pentium-II and
	  pre-Coppermine Celeron core.  This option enables an unaligned
	  copy optimization, compiles the kernel with optimization flags
	  tailored for the chip, and applies any applicable Pentium Pro
	  optimizations.

config MPENTIUMIII
	bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
	help
	  Select this for Intel chips based on the Pentium-III and
	  Celeron-Coppermine core.  This option enables use of some
	  extended prefetch instructions in addition to the Pentium II
	  extensions.

config MPENTIUMM
	bool "Pentium M"
	help
	  Select this for Intel Pentium M (not Pentium-4 M)
	  notebook chips.

config MPENTIUM4
	bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/Xeon"
	help
	  Select this for Intel Pentium 4 chips.  This includes the
	  Pentium 4, P4-based Celeron and Xeon, and Pentium-4 M
	  (not Pentium M) chips.  This option enables compile flags
	  optimized for the chip, uses the correct cache shift, and
	  applies any applicable Pentium III optimizations.

config MK6
	bool "K6/K6-II/K6-III"
	help
	  Select this for an AMD K6-family processor.  Enables use of
	  some extended instructions, and passes appropriate optimization
	  flags to GCC.

config MK7
	bool "Athlon/Duron/K7"
	help
	  Select this for an AMD Athlon K7-family processor.  Enables use of
	  some extended instructions, and passes appropriate optimization
	  flags to GCC.

config MK8
	bool "Opteron/Athlon64/Hammer/K8"
	help
	  Select this for an AMD Opteron or Athlon64 Hammer-family processor.  Enables
	  use of some extended instructions, and passes appropriate optimization
	  flags to GCC.

config MCRUSOE
	bool "Crusoe"
	help
	  Select this for a Transmeta Crusoe processor.  Treats the processor
	  like a 586 with TSC, and sets some GCC optimization flags (like a
	  Pentium Pro with no alignment requirements).

config MEFFICEON
	bool "Efficeon"
	help
	  Select this for a Transmeta Efficeon processor.

config MWINCHIPC6
	bool "Winchip-C6"
	help
	  Select this for an IDT Winchip C6 chip.  Linux and GCC
	  treat this chip as a 586TSC with some extended instructions
	  and alignment requirements.

config MWINCHIP2
	bool "Winchip-2"
	help
	  Select this for an IDT Winchip-2.  Linux and GCC
	  treat this chip as a 586TSC with some extended instructions
	  and alignment requirements.

config MWINCHIP3D
	bool "Winchip-2A/Winchip-3"
	help
	  Select this for an IDT Winchip-2A or 3.  Linux and GCC
	  treat this chip as a 586TSC with some extended instructions
	  and alignment reqirements.  Also enable out of order memory
	  stores for this CPU, which can increase performance of some
	  operations.

config MCYRIXIII
	bool "CyrixIII/VIA-C3"
	help
	  Select this for a Cyrix III or C3 chip.  Presently Linux and GCC
	  treat this chip as a generic 586. Whilst the CPU is 686 class,
	  it lacks the cmov extension which gcc assumes is present when
	  generating 686 code.
	  Note that Nehemiah (Model 9) and above will not boot with this
	  kernel due to them lacking the 3DNow! instructions used in earlier
	  incarnations of the CPU.

config MVIAC3_2
	bool "VIA C3-2 (Nehemiah)"
	help
	  Select this for a VIA C3 "Nehemiah". Selecting this enables usage
	  of SSE and tells gcc to treat the CPU as a 686.
	  Note, this kernel will not boot on older (pre model 9) C3s.

endchoice

config X86_GENERIC
       bool "Generic x86 support"
       help
	  Instead of just including optimizations for the selected
	  x86 variant (e.g. PII, Crusoe or Athlon), include some more
	  generic optimizations as well. This will make the kernel
	  perform better on x86 CPUs other than that selected.

	  This is really intended for distributors who need more
	  generic optimizations.

#
# Define implied options from the CPU selection here
#
config X86_CMPXCHG
	bool
	depends on !M386
	default y

config X86_XADD
	bool
	depends on !M386
	default y

config X86_L1_CACHE_SHIFT
	int
	default "7" if MPENTIUM4 || X86_GENERIC
	default "4" if X86_ELAN || M486 || M386
	default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2
	default "6" if MK7 || MK8 || MPENTIUMM

config RWSEM_GENERIC_SPINLOCK
	bool
	depends on M386
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool
	depends on !M386
	default y

config GENERIC_CALIBRATE_DELAY
	bool
	default y

config X86_PPRO_FENCE
	bool
	depends on M686 || M586MMX || M586TSC || M586 || M486 || M386
	default y

config X86_F00F_BUG
	bool
	depends on M586MMX || M586TSC || M586 || M486 || M386
	default y

config X86_WP_WORKS_OK
	bool
	depends on !M386
	default y

config X86_INVLPG
	bool
	depends on !M386
	default y

config X86_BSWAP
	bool
	depends on !M386
	default y

config X86_POPAD_OK
	bool
	depends on !M386
	default y

config X86_ALIGNMENT_16
	bool
	depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2
	default y

config X86_GOOD_APIC
	bool
	depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON
	default y

config X86_INTEL_USERCOPY
	bool
	depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON
	default y

config X86_USE_PPRO_CHECKSUM
	bool
	depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MEFFICEON
	default y

config X86_USE_3DNOW
	bool
	depends on MCYRIXIII || MK7
	default y

config X86_OOSTORE
	bool
	depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
	default y

config HPET_TIMER
	bool
	default n
#config HPET_TIMER
#	bool "HPET Timer Support"
#	help
#	  This enables the use of the HPET for the kernel's internal timer.
#	  HPET is the next generation timer replacing legacy 8254s.
#	  You can safely choose Y here.  However, HPET will only be
#	  activated if the platform and the BIOS support this feature.
#	  Otherwise the 8254 will be used for timing services.
#
#	  Choose N to continue using the legacy 8254 timer.

config HPET_EMULATE_RTC
	def_bool HPET_TIMER && RTC=y

config SMP
	bool "Symmetric multi-processing support"
	---help---
	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, like most personal computers, say N. If
	  you have a system with more than one CPU, say Y.

	  If you say N here, the kernel will run on single and multiprocessor
	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all,
	  singleprocessor machines. On a singleprocessor machine, the kernel
	  will run faster if you say N here.

	  Note that if you say Y here and choose architecture "586" or
	  "Pentium" under "Processor family", the kernel will not work on 486
	  architectures. Similarly, multiprocessor kernels for the "PPro"
	  architecture may not work on all Pentium based boards.

	  People using multiprocessor machines who say Y here should also say
	  Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
	  Management" code will be disabled if you say Y here.

	  See also the <file:Documentation/smp.txt>,
	  <file:Documentation/i386/IO-APIC.txt>,
	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.

	  If you don't know what to do here, say N.

config SMP_ALTERNATIVES
        bool "SMP alternatives support (EXPERIMENTAL)"
        depends on SMP && EXPERIMENTAL
        help
          Try to reduce the overhead of running an SMP kernel on a uniprocessor
          host slightly by replacing certain key instruction sequences
          according to whether we currently have more than one CPU available.
          This should provide a noticeable boost to performance when
          running SMP kernels on UP machines, and have negligible impact
          when running on an true SMP host.

          If unsure, say N.

config NR_CPUS
	int "Maximum number of CPUs (2-255)"
	range 2 255
	depends on SMP
	default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000
	default "8"
	help
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 255 and the
	  minimum value which makes sense is 2.

	  This is purely to save memory - each supported CPU adds
	  approximately eight kilobytes to the kernel image.

config SCHED_SMT
	bool "SMT (Hyperthreading) scheduler support"
	depends on SMP
	default off
	help
	  SMT scheduler support improves the CPU scheduler's decision making
	  when dealing with Intel Pentium 4 chips with HyperThreading at a
	  cost of slightly increased overhead in some places. If unsure say
	  N here.

config PREEMPT
	bool "Preemptible Kernel"
	help
	  This option reduces the latency of the kernel when reacting to
	  real-time or interactive events by allowing a low priority process to
	  be preempted even if it is in kernel mode executing a system call.
	  This allows applications to run more reliably even when the system is
	  under load.

	  Say Y here if you are building a kernel for a desktop, embedded
	  or real-time system.  Say N if you are unsure.

config PREEMPT_BKL
	bool "Preempt The Big Kernel Lock"
	depends on PREEMPT
	default y
	help
	  This option reduces the latency of the kernel by making the
	  big kernel lock preemptible.

	  Say Y here if you are building a kernel for a desktop system.
	  Say N if you are unsure.

#config X86_TSC
#	 bool
#	depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2) && !X86_NUMAQ
#	 default y

#config X86_MCE
#	 bool "Machine Check Exception"
#	depends on !X86_VOYAGER
#	 ---help---
#	   Machine Check Exception support allows the processor to notify the
#	   kernel if it detects a problem (e.g. overheating, component failure).
#	   The action the kernel takes depends on the severity of the problem,
#	   ranging from a warning message on the console, to halting the machine.
#	   Your processor must be a Pentium or newer to support this - check the
#	   flags in /proc/cpuinfo for mce.  Note that some older Pentium systems
#	   have a design flaw which leads to false MCE events - hence MCE is
#	   disabled on all P5 processors, unless explicitly enabled with "mce"
#	   as a boot argument.  Similarly, if MCE is built in and creates a
#	   problem on some new non-standard machine, you can boot with "nomce"
#	   to disable it.  MCE support simply ignores non-MCE processors like
#	   the 386 and 486, so nearly everyone can say Y here.

#config X86_MCE_NONFATAL
#	tristate "Check for non-fatal errors on AMD Athlon/Duron / Intel Pentium 4"
#	 depends on X86_MCE
#	 help
#	   Enabling this feature starts a timer that triggers every 5 seconds which
#	   will look at the machine check registers to see if anything happened.
#	   Non-fatal problems automatically get corrected (but still logged).
#	   Disable this if you don't want to see these messages.
#	   Seeing the messages this option prints out may be indicative of dying hardware,
#	   or out-of-spec (ie, overclocked) hardware.
#	   This option only does something on certain CPUs.
#	   (AMD Athlon/Duron and Intel Pentium 4)

#config X86_MCE_P4THERMAL
#	 bool "check for P4 thermal throttling interrupt."
#	 depends on X86_MCE && (X86_UP_APIC || SMP)
#	 help
#	   Enabling this feature will cause a message to be printed when the P4
#	   enters thermal throttling.

config MICROCODE
	tristate "/dev/cpu/microcode - Intel IA32 CPU microcode support"
	 depends on XEN_PRIVILEGED_GUEST
	---help---
	  If you say Y here and also to "/dev file system support" in the
	  'File systems' section, you will be able to update the microcode on
	  Intel processors in the IA32 family, e.g. Pentium Pro, Pentium II,
	  Pentium III, Pentium 4, Xeon etc.  You will obviously need the
	  actual microcode binary data itself which is not shipped with the
	  Linux kernel.

	  For latest news and information on obtaining all the required
	  ingredients for this driver, check:
	  <http://www.urbanmyth.org/microcode/>.

	  To compile this driver as a module, choose M here: the
	  module will be called microcode.

#config X86_MSR
#	 tristate "/dev/cpu/*/msr - Model-specific register support"
#	 help
#	   This device gives privileged processes access to the x86
#	   Model-Specific Registers (MSRs).  It is a character device with
#	   major 202 and minors 0 to 31 for /dev/cpu/0/msr to /dev/cpu/31/msr.
#	   MSR accesses are directed to a specific CPU on multi-processor
#	   systems.

config X86_CPUID
	tristate "/dev/cpu/*/cpuid - CPU information support"
	help
	  This device gives processes access to the x86 CPUID instruction to
	  be executed on a specific processor.  It is a character device
	  with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
	  /dev/cpu/31/cpuid.

source "drivers/firmware/Kconfig"

choice
	prompt "High Memory Support"
	default NOHIGHMEM

config NOHIGHMEM
	bool "off"
	---help---
	  Linux can use up to 64 Gigabytes of physical memory on x86 systems.
	  However, the address space of 32-bit x86 processors is only 4
	  Gigabytes large. That means that, if you have a large amount of
	  physical memory, not all of it can be "permanently mapped" by the
	  kernel. The physical memory that's not permanently mapped is called
	  "high memory".

	  If you are compiling a kernel which will never run on a machine with
	  more than 1 Gigabyte total physical RAM, answer "off" here (default
	  choice and suitable for most users). This will result in a "3GB/1GB"
	  split: 3GB are mapped so that each process sees a 3GB virtual memory
	  space and the remaining part of the 4GB virtual memory space is used
	  by the kernel to permanently map as much physical memory as
	  possible.

	  If the machine has between 1 and 4 Gigabytes physical RAM, then
	  answer "4GB" here.

	  If more than 4 Gigabytes is used then answer "64GB" here. This
	  selection turns Intel PAE (Physical Address Extension) mode on.
	  PAE implements 3-level paging on IA32 processors. PAE is fully
	  supported by Linux, PAE mode is implemented on all recent Intel
	  processors (Pentium Pro and better). NOTE: If you say "64GB" here,
	  then the kernel will not boot on CPUs that don't support PAE!

	  The actual amount of total physical memory will either be
	  auto detected or can be forced by using a kernel command line option
	  such as "mem=256M". (Try "man bootparam" or see the documentation of
	  your boot loader (lilo or loadlin) about how to pass options to the
	  kernel at boot time.)

	  If unsure, say "off".

config HIGHMEM4G
	bool "4GB"
	help
	  Select this if you have a 32-bit processor and between 1 and 4
	  gigabytes of physical RAM.

#config HIGHMEM64G
#	bool "64GB"
#	help
#	  Select this if you have a 32-bit processor and more than 4
#	  gigabytes of physical RAM.

endchoice

config HIGHMEM
	bool
	depends on HIGHMEM64G || HIGHMEM4G
	default y

config X86_PAE
	bool
	depends on HIGHMEM64G
	default y

# Common NUMA Features
config NUMA
	bool "Numa Memory Allocation and Scheduler Support"
	depends on SMP && HIGHMEM64G && (X86_NUMAQ || X86_GENERICARCH || (X86_SUMMIT && ACPI))
	default n if X86_PC
	default y if (X86_NUMAQ || X86_SUMMIT)

# Need comments to help the hapless user trying to turn on NUMA support
comment "NUMA (NUMA-Q) requires SMP, 64GB highmem support"
	depends on X86_NUMAQ && (!HIGHMEM64G || !SMP)

comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
	depends on X86_SUMMIT && (!HIGHMEM64G || !ACPI)

config DISCONTIGMEM
	bool
	depends on NUMA
	default y

config HAVE_ARCH_BOOTMEM_NODE
	bool
	depends on NUMA
	default y

#config HIGHPTE
#	bool "Allocate 3rd-level pagetables from highmem"
#	depends on HIGHMEM4G || HIGHMEM64G
#	help
#	  The VM uses one page table entry for each page of physical memory.
#	  For systems with a lot of RAM, this can be wasteful of precious
#	  low memory.  Setting this option will put user-space page table
#	  entries in high memory.

config MTRR
	bool
	depends on XEN_PRIVILEGED_GUEST
	default y

#config MTRR
#	 bool "MTRR (Memory Type Range Register) support"
#	 ---help---
#	   On Intel P6 family processors (Pentium Pro, Pentium II and later)
#	   the Memory Type Range Registers (MTRRs) may be used to control
#	   processor access to memory ranges. This is most useful if you have
#	   a video (VGA) card on a PCI or AGP bus. Enabling write-combining
#	   allows bus write transfers to be combined into a larger transfer
#	   before bursting over the PCI/AGP bus. This can increase performance
#	   of image write operations 2.5 times or more. Saying Y here creates a
#	   /proc/mtrr file which may be used to manipulate your processor's
#	   MTRRs. Typically the X server should use this.
#
#	   This code has a reasonably generic interface so that similar
#	   control registers on other processors can be easily supported
#	   as well:
#
#	   The Cyrix 6x86, 6x86MX and M II processors have Address Range
#	   Registers (ARRs) which provide a similar functionality to MTRRs. For
#	   these, the ARRs are used to emulate the MTRRs.
#	   The AMD K6-2 (stepping 8 and above) and K6-3 processors have two
#	   MTRRs. The Centaur C6 (WinChip) has 8 MCRs, allowing
#	   write-combining. All of these processors are supported by this code
#	   and it makes sense to say Y here if you have one of them.
#
#	   Saying Y here also fixes a problem with buggy SMP BIOSes which only
#	   set the MTRRs for the boot CPU and not for the secondary CPUs. This
#	   can lead to all sorts of problems, so it's good to say Y here.
#
#	   You can safely say Y even if your machine doesn't have MTRRs, you'll
#	   just add about 9 KB to your kernel.
#
#	   See <file:Documentation/mtrr.txt> for more information.

config IRQBALANCE
 	bool "Enable kernel irq balancing"
	depends on SMP && X86_IO_APIC && !XEN
	default y
	help
 	  The default yes will allow the kernel to do irq load balancing.
	  Saying no will keep the kernel from doing irq load balancing.

config HAVE_DEC_LOCK
	bool
	depends on (SMP || PREEMPT) && X86_CMPXCHG
	default y

# turning this on wastes a bunch of space.
# Summit needs it only when NUMA is on
config BOOT_IOREMAP
	bool
	depends on (((X86_SUMMIT || X86_GENERICARCH) && NUMA) || (X86 && EFI))
	default y

config REGPARM
	bool "Use register arguments (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	default n
	help
	Compile the kernel with -mregparm=3. This uses a different ABI
	and passes the first three arguments of a function call in registers.
	This will probably break binary only modules.

	This feature is only enabled for gcc-3.0 and later - earlier compilers
	generate incorrect output with certain kernel constructs when
	-mregparm=3 is used.

config X86_LOCAL_APIC
	bool
	depends on !SMP && X86_UP_APIC
	default y

config X86_IO_APIC
	bool
	depends on !SMP && X86_UP_IOAPIC
	default y

config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	depends on SMP && HOTPLUG && EXPERIMENTAL
	---help---
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu.

	  Say N.


if XEN_PHYSDEV_ACCESS

menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"

config X86_VISWS_APIC
	bool
	depends on X86_VISWS
	default y

config X86_LOCAL_APIC
	bool
	depends on (X86_VISWS || SMP) && !X86_VOYAGER
	default y

config X86_UP_APIC
	bool "Local APIC support on uniprocessors" if !SMP
	depends on !(X86_VISWS || X86_VOYAGER)
	---help---
	  A local APIC (Advanced Programmable Interrupt Controller) is an
	  integrated interrupt controller in the CPU. If you have a single-CPU
	  system which has a processor with a local APIC, you can say Y here to
	  enable and use it. If you say Y here even though your machine doesn't
	  have a local APIC, then the kernel will still run with no slowdown at
	  all. The local APIC supports CPU-generated self-interrupts (timer,
	  performance counters), and the NMI watchdog which detects hard
	  lockups.

	  If you have a system with several CPUs, you do not need to say Y
	  here: the local APIC will be used automatically.

config X86_UP_IOAPIC
	bool "IO-APIC support on uniprocessors"
	depends on !SMP && X86_UP_APIC
	help
	  An IO-APIC (I/O Advanced Programmable Interrupt Controller) is an
	  SMP-capable replacement for PC-style interrupt controllers. Most
	  SMP systems and a small number of uniprocessor systems have one.
	  If you have a single-CPU system with an IO-APIC, you can say Y here
	  to use it. If you say Y here even though your machine doesn't have
	  an IO-APIC, then the kernel will still run with no slowdown at all.

	  If you have a system with several CPUs, you do not need to say Y
	  here: the IO-APIC will be used automatically.

config X86_IO_APIC
	bool
	depends on SMP && !(X86_VISWS || X86_VOYAGER)
	default y

config PCI
	bool "PCI support" if !X86_VISWS
	depends on !X86_VOYAGER
	default y if X86_VISWS
	help
	  Find out whether you have a PCI motherboard. PCI is the name of a
	  bus system, i.e. the way the CPU talks to the other stuff inside
	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
	  VESA. If you have PCI, say Y, otherwise N.

	  The PCI-HOWTO, available from
	  <http://www.tldp.org/docs.html#howto>, contains valuable
	  information about which PCI hardware does work under Linux and which
	  doesn't.

choice
	prompt "PCI access mode"
	depends on PCI && !X86_VISWS
	default PCI_GOANY
	---help---
	  On PCI systems, the BIOS can be used to detect the PCI devices and
	  determine their configuration. However, some old PCI motherboards
	  have BIOS bugs and may crash if this is done. Also, some embedded
	  PCI-based systems don't have any BIOS at all. Linux can also try to
	  detect the PCI hardware directly without using the BIOS.

	  With this option, you can specify how Linux should detect the
	  PCI devices. If you choose "BIOS", the BIOS will be used,
	  if you choose "Direct", the BIOS won't be used, and if you
	  choose "MMConfig", then PCI Express MMCONFIG will be used.
	  If you choose "Any", the kernel will try MMCONFIG, then the
	  direct access method and falls back to the BIOS if that doesn't
	  work. If unsure, go with the default, which is "Any".

config PCI_GOBIOS
	bool "BIOS"

config PCI_GOMMCONFIG
	bool "MMConfig"

config PCI_GODIRECT
	bool "Direct"

config PCI_GOANY
	bool "Any"

endchoice

config PCI_BIOS
	bool
	depends on !X86_VISWS && PCI && (PCI_GOBIOS || PCI_GOANY)
	default y

config PCI_DIRECT
	bool
 	depends on PCI && ((PCI_GODIRECT || PCI_GOANY) || X86_VISWS)
	default y

config PCI_MMCONFIG
	bool
	depends on PCI && (PCI_GOMMCONFIG || (PCI_GOANY && ACPI))
	select ACPI_BOOT
	default y

source "drivers/pci/pcie/Kconfig"

source "drivers/pci/Kconfig"

config ISA
	bool "ISA support"
	depends on !(X86_VOYAGER || X86_VISWS)
	help
	  Find out whether you have ISA slots on your motherboard.  ISA is the
	  name of a bus system, i.e. the way the CPU talks to the other stuff
	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
	  newer boards don't support it.  If you have ISA, say Y, otherwise N.

config EISA
	bool "EISA support"
	depends on ISA
	---help---
	  The Extended Industry Standard Architecture (EISA) bus was
	  developed as an open alternative to the IBM MicroChannel bus.

	  The EISA bus provided some of the features of the IBM MicroChannel
	  bus while maintaining backward compatibility with cards made for
	  the older ISA bus.  The EISA bus saw limited use between 1988 and
	  1995 when it was made obsolete by the PCI bus.

	  Say Y here if you are building a kernel for an EISA-based machine.

	  Otherwise, say N.

source "drivers/eisa/Kconfig"

config MCA
	bool "MCA support"
	depends on !(X86_VISWS || X86_VOYAGER)
	help
	  MicroChannel Architecture is found in some IBM PS/2 machines and
	  laptops.  It is a bus system similar to PCI or ISA. See
	  <file:Documentation/mca.txt> (and especially the web page given
	  there) before attempting to build an MCA bus kernel.

config MCA
	depends on X86_VOYAGER
	default y if X86_VOYAGER

source "drivers/mca/Kconfig"

config SCx200
	tristate "NatSemi SCx200 support"
	depends on !X86_VOYAGER
	help
	  This provides basic support for the National Semiconductor SCx200
	  processor.  Right now this is just a driver for the GPIO pins.

	  If you don't know what to do here, say N.

	  This support is also available as a module.  If compiled as a
	  module, it will be called scx200.

source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

endmenu

endif

source "arch/i386/Kconfig.debug"

#
# Use the generic interrupt handling code in kernel/irq/:
#
config GENERIC_HARDIRQS
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

config X86_SMP
	bool
	depends on SMP && !X86_VOYAGER
	default y

#config X86_HT
#	bool
#	depends on SMP && !(X86_VISWS || X86_VOYAGER)
#	default y

config X86_BIOS_REBOOT
	bool
	depends on !(X86_VISWS || X86_VOYAGER)
	default y

config X86_TRAMPOLINE
	bool
	depends on X86_SMP || (X86_VOYAGER && SMP)
	default y

config PC
	bool
	depends on X86 && !EMBEDDED
	default y

endmenu