x86: move the rest of the menu's to Kconfig

With this patch we have all the Kconfig file shared
between i386 and x86_64.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>

1 files changed, 1052 insertions, 0 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d47b5a2e4a32..34517bf14ba4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -151,7 +151,1059 @@ config X86_TRAMPOLINE
 
 config KTIME_SCALAR
 	def_bool X86_32
+source "init/Kconfig"
 
+menu "Processor type and features"
+
+source "kernel/time/Kconfig"
+
+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.
+
+choice
+	prompt "Subarchitecture Type"
+	default X86_PC
+
+config X86_PC
+	bool "PC-compatible"
+	help
+	  Choose this option if your computer is a standard PC or compatible.
+
+config X86_ELAN
+	bool "AMD Elan"
+	depends on X86_32
+	help
+	  Select this for an AMD Elan processor.
+
+	  Do not use this option for K6/Athlon/Opteron processors!
+
+	  If unsure, choose "PC-compatible" instead.
+
+config X86_VOYAGER
+	bool "Voyager (NCR)"
+	depends on X86_32
+	select SMP if !BROKEN
+	help
+	  Voyager is an MCA-based 32-way capable SMP architecture proprietary
+	  to NCR Corp.  Machine classes 345x/35xx/4100/51xx are Voyager-based.
+
+	  *** WARNING ***
+
+	  If you do not specifically know you have a Voyager based machine,
+	  say N here, otherwise the kernel you build will not be bootable.
+
+config X86_NUMAQ
+	bool "NUMAQ (IBM/Sequent)"
+	select SMP
+	select NUMA
+	depends on X86_32
+	help
+	  This option is used for getting Linux to run on a (IBM/Sequent) NUMA
+	  multiquad box. This changes the way that processors are bootstrapped,
+	  and uses Clustered Logical APIC addressing mode instead of Flat Logical.
+	  You will need a new lynxer.elf file to flash your firmware with - send
+	  email to <Martin.Bligh@us.ibm.com>.
+
+config X86_SUMMIT
+	bool "Summit/EXA (IBM x440)"
+	depends on X86_32 && SMP
+	help
+	  This option is needed for IBM systems that use the Summit/EXA chipset.
+	  In particular, it is needed for the x440.
+
+	  If you don't have one of these computers, you should say N here.
+	  If you want to build a NUMA kernel, you must select ACPI.
+
+config X86_BIGSMP
+	bool "Support for other sub-arch SMP systems with more than 8 CPUs"
+	depends on X86_32 && SMP
+	help
+	  This option is needed for the systems that have more than 8 CPUs
+	  and if the system is not of any sub-arch type above.
+
+	  If you don't have such a system, you should say N here.
+
+config X86_VISWS
+	bool "SGI 320/540 (Visual Workstation)"
+	depends on X86_32
+	help
+	  The SGI Visual Workstation series is an IA32-based workstation
+	  based on SGI systems chips with some legacy PC hardware attached.
+
+	  Say Y here to create a kernel to run on the SGI 320 or 540.
+
+	  A kernel compiled for the Visual Workstation will not run on PCs
+	  and vice versa. See <file:Documentation/sgi-visws.txt> for details.
+
+config X86_GENERICARCH
+       bool "Generic architecture (Summit, bigsmp, ES7000, default)"
+	depends on X86_32
+       help
+          This option compiles in the Summit, bigsmp, ES7000, default subarchitectures.
+	  It is intended for a generic binary kernel.
+	  If you want a NUMA kernel, select ACPI.   We need SRAT for NUMA.
+
+config X86_ES7000
+	bool "Support for Unisys ES7000 IA32 series"
+	depends on X86_32 && SMP
+	help
+	  Support for Unisys ES7000 systems.  Say 'Y' here if this kernel is
+	  supposed to run on an IA32-based Unisys ES7000 system.
+	  Only choose this option if you have such a system, otherwise you
+	  should say N here.
+
+config X86_VSMP
+	bool "Support for ScaleMP vSMP"
+	depends on X86_64 && PCI
+	 help
+	  Support for ScaleMP vSMP systems.  Say 'Y' here if this kernel is
+	  supposed to run on these EM64T-based machines.  Only choose this option
+	  if you have one of these machines.
+
+endchoice
+
+config SCHED_NO_NO_OMIT_FRAME_POINTER
+	bool "Single-depth WCHAN output"
+	default y
+	depends on X86_32
+	help
+	  Calculate simpler /proc/<PID>/wchan values. If this option
+	  is disabled then wchan values will recurse back to the
+	  caller function. This provides more accurate wchan values,
+	  at the expense of slightly more scheduling overhead.
+
+	  If in doubt, say "Y".
+
+config PARAVIRT
+	bool
+	depends on X86_32 && !(X86_VISWS || X86_VOYAGER)
+	help
+	  This changes the kernel so it can modify itself when it is run
+	  under a hypervisor, potentially improving performance significantly
+	  over full virtualization.  However, when run without a hypervisor
+	  the kernel is theoretically slower and slightly larger.
+
+menuconfig PARAVIRT_GUEST
+	bool "Paravirtualized guest support"
+	depends on X86_32
+	help
+	  Say Y here to get to see options related to running Linux under
+	  various hypervisors.  This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
+
+if PARAVIRT_GUEST
+
+source "arch/x86/xen/Kconfig"
+
+config VMI
+	bool "VMI Guest support"
+	select PARAVIRT
+	depends on !(X86_VISWS || X86_VOYAGER)
+	help
+	  VMI provides a paravirtualized interface to the VMware ESX server
+	  (it could be used by other hypervisors in theory too, but is not
+	  at the moment), by linking the kernel to a GPL-ed ROM module
+	  provided by the hypervisor.
+
+source "arch/x86/lguest/Kconfig"
+
+endif
+
+config ACPI_SRAT
+	bool
+	default y
+	depends on X86_32 && ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH)
+	select ACPI_NUMA
+
+config HAVE_ARCH_PARSE_SRAT
+       bool
+       default y
+       depends on ACPI_SRAT
+
+config X86_SUMMIT_NUMA
+	bool
+	default y
+	depends on X86_32 && NUMA && (X86_SUMMIT || X86_GENERICARCH)
+
+config X86_CYCLONE_TIMER
+	bool
+	default y
+	depends on X86_32 && X86_SUMMIT || X86_GENERICARCH
+
+config ES7000_CLUSTERED_APIC
+	bool
+	default y
+	depends on SMP && X86_ES7000 && MPENTIUMIII
+
+source "arch/x86/Kconfig.cpu"
+
+config HPET_TIMER
+	bool
+	prompt "HPET Timer Support" if X86_32
+	default X86_64
+	help
+         Use the IA-PC HPET (High Precision Event Timer) to manage
+         time in preference to the PIT and RTC, if a HPET is
+         present.
+         HPET is the next generation timer replacing legacy 8254s.
+         The HPET provides a stable time base on SMP
+         systems, unlike the TSC, but it is more expensive to access,
+         as it is off-chip.  You can find the HPET spec at
+         <http://www.intel.com/hardwaredesign/hpetspec.htm>.
+
+         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
+	bool
+	depends on HPET_TIMER && RTC=y
+	default y
+
+# Mark as embedded because too many people got it wrong.
+# The code disables itself when not needed.
+config GART_IOMMU
+	bool "GART IOMMU support" if EMBEDDED
+	default y
+	select SWIOTLB
+	select AGP
+	depends on X86_64 && PCI
+	help
+	  Support for full DMA access of devices with 32bit memory access only
+	  on systems with more than 3GB. This is usually needed for USB,
+	  sound, many IDE/SATA chipsets and some other devices.
+	  Provides a driver for the AMD Athlon64/Opteron/Turion/Sempron GART
+	  based hardware IOMMU and a software bounce buffer based IOMMU used
+	  on Intel systems and as fallback.
+	  The code is only active when needed (enough memory and limited
+	  device) unless CONFIG_IOMMU_DEBUG or iommu=force is specified
+	  too.
+
+config CALGARY_IOMMU
+	bool "IBM Calgary IOMMU support"
+	select SWIOTLB
+	depends on X86_64 && PCI && EXPERIMENTAL
+	help
+	  Support for hardware IOMMUs in IBM's xSeries x366 and x460
+	  systems. Needed to run systems with more than 3GB of memory
+	  properly with 32-bit PCI devices that do not support DAC
+	  (Double Address Cycle). Calgary also supports bus level
+	  isolation, where all DMAs pass through the IOMMU.  This
+	  prevents them from going anywhere except their intended
+	  destination. This catches hard-to-find kernel bugs and
+	  mis-behaving drivers and devices that do not use the DMA-API
+	  properly to set up their DMA buffers.  The IOMMU can be
+	  turned off at boot time with the iommu=off parameter.
+	  Normally the kernel will make the right choice by itself.
+	  If unsure, say Y.
+
+config CALGARY_IOMMU_ENABLED_BY_DEFAULT
+	bool "Should Calgary be enabled by default?"
+	default y
+	depends on CALGARY_IOMMU
+	help
+	  Should Calgary be enabled by default? if you choose 'y', Calgary
+	  will be used (if it exists). If you choose 'n', Calgary will not be
+	  used even if it exists. If you choose 'n' and would like to use
+	  Calgary anyway, pass 'iommu=calgary' on the kernel command line.
+	  If unsure, say Y.
+
+# need this always selected by IOMMU for the VIA workaround
+config SWIOTLB
+	bool
+	help
+	  Support for software bounce buffers used on x86-64 systems
+	  which don't have a hardware IOMMU (e.g. the current generation
+	  of Intel's x86-64 CPUs). Using this PCI devices which can only
+	  access 32-bits of memory can be used on systems with more than
+	  3 GB of memory. If unsure, say Y.
+
+
+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 (X86_64 && SMP) || (X86_32 && X86_HT)
+	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 SCHED_MC
+	bool "Multi-core scheduler support"
+	depends on (X86_64 && SMP) || (X86_32 && X86_HT)
+	default y
+	help
+	  Multi-core scheduler support improves the CPU scheduler's decision
+	  making when dealing with multi-core CPU chips at a cost of slightly
+	  increased overhead in some places. If unsure say N here.
+
+source "kernel/Kconfig.preempt"
+
+config X86_UP_APIC
+	bool "Local APIC support on uniprocessors"
+	depends on X86_32 && !SMP && !(X86_VISWS || X86_VOYAGER || X86_GENERICARCH)
+	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.
+
+config X86_UP_IOAPIC
+	bool "IO-APIC support on uniprocessors"
+	depends on 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 many recent 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.
+
+config X86_LOCAL_APIC
+	bool
+	depends on X86_64 || (X86_32 && (X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) || X86_GENERICARCH))
+	default y
+
+config X86_IO_APIC
+	bool
+	depends on X86_64 || (X86_32 && (X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) || X86_GENERICARCH))
+	default y
+
+config X86_VISWS_APIC
+	bool
+	depends on X86_32 && X86_VISWS
+	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_INTEL
+	bool "Intel MCE features"
+	depends on X86_64 && X86_MCE && X86_LOCAL_APIC
+	default y
+	help
+	   Additional support for intel specific MCE features such as
+	   the thermal monitor.
+
+config X86_MCE_AMD
+	bool "AMD MCE features"
+	depends on X86_64 && X86_MCE && X86_LOCAL_APIC
+	default y
+	help
+	   Additional support for AMD specific MCE features such as
+	   the DRAM Error Threshold.
+
+config X86_MCE_NONFATAL
+	tristate "Check for non-fatal errors on AMD Athlon/Duron / Intel Pentium 4"
+	depends on X86_32 && 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
+	  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_32 && X86_MCE && (X86_UP_APIC || SMP) && !X86_VISWS
+	help
+	  Enabling this feature will cause a message to be printed when the P4
+	  enters thermal throttling.
+
+config VM86
+	bool "Enable VM86 support" if EMBEDDED
+	default y
+	depends on X86_32
+	help
+          This option is required by programs like DOSEMU to run 16-bit legacy
+	  code on X86 processors. It also may be needed by software like
+          XFree86 to initialize some video cards via BIOS. Disabling this
+          option saves about 6k.
+
+config TOSHIBA
+	tristate "Toshiba Laptop support"
+	depends on X86_32
+	---help---
+	  This adds a driver to safely access the System Management Mode of
+	  the CPU on Toshiba portables with a genuine Toshiba BIOS. It does
+	  not work on models with a Phoenix BIOS. The System Management Mode
+	  is used to set the BIOS and power saving options on Toshiba portables.
+
+	  For information on utilities to make use of this driver see the
+	  Toshiba Linux utilities web site at:
+	  <http://www.buzzard.org.uk/toshiba/>.
+
+	  Say Y if you intend to run this kernel on a Toshiba portable.
+	  Say N otherwise.
+
+config I8K
+	tristate "Dell laptop support"
+	depends on X86_32
+	---help---
+	  This adds a driver to safely access the System Management Mode
+	  of the CPU on the Dell Inspiron 8000. The System Management Mode
+	  is used to read cpu temperature and cooling fan status and to
+	  control the fans on the I8K portables.
+
+	  This driver has been tested only on the Inspiron 8000 but it may
+	  also work with other Dell laptops. You can force loading on other
+	  models by passing the parameter `force=1' to the module. Use at
+	  your own risk.
+
+	  For information on utilities to make use of this driver see the
+	  I8K Linux utilities web site at:
+	  <http://people.debian.org/~dz/i8k/>
+
+	  Say Y if you intend to run this kernel on a Dell Inspiron 8000.
+	  Say N otherwise.
+
+config X86_REBOOTFIXUPS
+	bool "Enable X86 board specific fixups for reboot"
+	depends on X86_32 && X86
+	default n
+	---help---
+	  This enables chipset and/or board specific fixups to be done
+	  in order to get reboot to work correctly. This is only needed on
+	  some combinations of hardware and BIOS. The symptom, for which
+	  this config is intended, is when reboot ends with a stalled/hung
+	  system.
+
+	  Currently, the only fixup is for the Geode machines using
+	  CS5530A and CS5536 chipsets.
+
+	  Say Y if you want to enable the fixup. Currently, it's safe to
+	  enable this option even if you don't need it.
+	  Say N otherwise.
+
+config MICROCODE
+	tristate "/dev/cpu/microcode - Intel IA32 CPU microcode support"
+	select FW_LOADER
+	---help---
+	  If you say Y here, 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 MICROCODE_OLD_INTERFACE
+	bool
+	depends on MICROCODE
+	default y
+
+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.
+
+choice
+	prompt "High Memory Support"
+	default HIGHMEM4G if !X86_NUMAQ
+	default HIGHMEM64G if X86_NUMAQ
+	depends on X86_32
+
+config NOHIGHMEM
+	bool "off"
+	depends on !X86_NUMAQ
+	---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"
+	depends on !X86_NUMAQ
+	help
+	  Select this if you have a 32-bit processor and between 1 and 4
+	  gigabytes of physical RAM.
+
+config HIGHMEM64G
+	bool "64GB"
+	depends on !M386 && !M486
+	select X86_PAE
+	help
+	  Select this if you have a 32-bit processor and more than 4
+	  gigabytes of physical RAM.
+
+endchoice
+
+choice
+	depends on EXPERIMENTAL
+	prompt "Memory split" if EMBEDDED
+	default VMSPLIT_3G
+	depends on X86_32
+	help
+	  Select the desired split between kernel and user memory.
+
+	  If the address range available to the kernel is less than the
+	  physical memory installed, the remaining memory will be available
+	  as "high memory". Accessing high memory is a little more costly
+	  than low memory, as it needs to be mapped into the kernel first.
+	  Note that increasing the kernel address space limits the range
+	  available to user programs, making the address space there
+	  tighter.  Selecting anything other than the default 3G/1G split
+	  will also likely make your kernel incompatible with binary-only
+	  kernel modules.
+
+	  If you are not absolutely sure what you are doing, leave this
+	  option alone!
+
+	config VMSPLIT_3G
+		bool "3G/1G user/kernel split"
+	config VMSPLIT_3G_OPT
+		depends on !X86_PAE
+		bool "3G/1G user/kernel split (for full 1G low memory)"
+	config VMSPLIT_2G
+		bool "2G/2G user/kernel split"
+	config VMSPLIT_2G_OPT
+		depends on !X86_PAE
+		bool "2G/2G user/kernel split (for full 2G low memory)"
+	config VMSPLIT_1G
+		bool "1G/3G user/kernel split"
+endchoice
+
+config PAGE_OFFSET
+	hex
+	default 0xB0000000 if VMSPLIT_3G_OPT
+	default 0x80000000 if VMSPLIT_2G
+	default 0x78000000 if VMSPLIT_2G_OPT
+	default 0x40000000 if VMSPLIT_1G
+	default 0xC0000000
+	depends on X86_32
+
+config HIGHMEM
+	bool
+	depends on X86_32 && (HIGHMEM64G || HIGHMEM4G)
+	default y
+
+config X86_PAE
+	bool "PAE (Physical Address Extension) Support"
+	default n
+	depends on X86_32 && !HIGHMEM4G
+	select RESOURCES_64BIT
+	help
+	  PAE is required for NX support, and furthermore enables
+	  larger swapspace support for non-overcommit purposes. It
+	  has the cost of more pagetable lookup overhead, and also
+	  consumes more pagetable space per process.
+
+# Common NUMA Features
+config NUMA
+	bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
+	depends on SMP
+	depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) && EXPERIMENTAL)
+	default n if X86_PC
+	default y if (X86_NUMAQ || X86_SUMMIT)
+	help
+	  Enable NUMA (Non Uniform Memory Access) support.
+	  The kernel will try to allocate memory used by a CPU on the
+	  local memory controller of the CPU and add some more
+	  NUMA awareness to the kernel.
+
+	  For i386 this is currently highly experimental and should be only
+	  used for kernel development. It might also cause boot failures.
+	  For x86_64 this is recommended on all multiprocessor Opteron systems.
+	  If the system is EM64T, you should say N unless your system is
+	  EM64T NUMA.
+
+comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
+	depends on X86_32 && X86_SUMMIT && (!HIGHMEM64G || !ACPI)
+
+config K8_NUMA
+       bool "Old style AMD Opteron NUMA detection"
+       depends on X86_64 && NUMA && PCI
+       default y
+       help
+	 Enable K8 NUMA node topology detection.  You should say Y here if
+	 you have a multi processor AMD K8 system. This uses an old
+	 method to read the NUMA configuration directly from the builtin
+	 Northbridge of Opteron. It is recommended to use X86_64_ACPI_NUMA
+	 instead, which also takes priority if both are compiled in.
+
+config X86_64_ACPI_NUMA
+	bool "ACPI NUMA detection"
+	depends on X86_64 && NUMA && ACPI && PCI
+	select ACPI_NUMA
+	default y
+	help
+	  Enable ACPI SRAT based node topology detection.
+
+config NUMA_EMU
+	bool "NUMA emulation"
+	depends on X86_64 && NUMA
+	help
+	  Enable NUMA emulation. A flat machine will be split
+	  into virtual nodes when booted with "numa=fake=N", where N is the
+	  number of nodes. This is only useful for debugging.
+
+config NODES_SHIFT
+	int
+	default "6" if X86_64
+	default "4" if X86_NUMAQ
+	default "3"
+	depends on NEED_MULTIPLE_NODES
+
+config HAVE_ARCH_BOOTMEM_NODE
+	bool
+	depends on X86_32 && NUMA
+	default y
+
+config ARCH_HAVE_MEMORY_PRESENT
+	bool
+	depends on X86_32 && DISCONTIGMEM
+	default y
+
+config NEED_NODE_MEMMAP_SIZE
+	bool
+	depends on X86_32 && (DISCONTIGMEM || SPARSEMEM)
+	default y
+
+config HAVE_ARCH_ALLOC_REMAP
+	bool
+	depends on X86_32 && NUMA
+	default y
+
+config ARCH_FLATMEM_ENABLE
+	def_bool y
+	depends on (X86_32 && ARCH_SELECT_MEMORY_MODEL && X86_PC) || (X86_64 && !NUMA)
+
+config ARCH_DISCONTIGMEM_ENABLE
+	def_bool y
+	depends on NUMA
+
+config ARCH_DISCONTIGMEM_DEFAULT
+	def_bool y
+	depends on NUMA
+
+config ARCH_SPARSEMEM_ENABLE
+	def_bool y
+	depends on NUMA || (EXPERIMENTAL && (X86_PC || X86_64))
+	select SPARSEMEM_STATIC if X86_32
+	select SPARSEMEM_VMEMMAP_ENABLE if X86_64
+
+config ARCH_SELECT_MEMORY_MODEL
+	def_bool y
+	depends on X86_32 && ARCH_SPARSEMEM_ENABLE
+
+config ARCH_MEMORY_PROBE
+	def_bool X86_64
+	depends on MEMORY_HOTPLUG
+
+source "mm/Kconfig"
+
+config HIGHPTE
+	bool "Allocate 3rd-level pagetables from highmem"
+	depends on X86_32 && (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 MATH_EMULATION
+	bool
+	prompt "Math emulation" if X86_32
+	---help---
+	  Linux can emulate a math coprocessor (used for floating point
+	  operations) if you don't have one. 486DX and Pentium processors have
+	  a math coprocessor built in, 486SX and 386 do not, unless you added
+	  a 487DX or 387, respectively. (The messages during boot time can
+	  give you some hints here ["man dmesg"].) Everyone needs either a
+	  coprocessor or this emulation.
+
+	  If you don't have a math coprocessor, you need to say Y here; if you
+	  say Y here even though you have a coprocessor, the coprocessor will
+	  be used nevertheless. (This behavior can be changed with the kernel
+	  command line option "no387", which comes handy if your coprocessor
+	  is broken. 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.) This means that it is a good idea to say Y here if you
+	  intend to use this kernel on different machines.
+
+	  More information about the internals of the Linux math coprocessor
+	  emulation can be found in <file:arch/x86/math-emu/README>.
+
+	  If you are not sure, say Y; apart from resulting in a 66 KB bigger
+	  kernel, it won't hurt.
+
+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 EFI
+	bool "Boot from EFI support"
+	depends on X86_32 && ACPI
+	default n
+	---help---
+	This enables the kernel to boot on EFI platforms using
+	system configuration information passed to it from the firmware.
+	This also enables the kernel to use any EFI runtime services that are
+	available (such as the EFI variable services).
+
+	This option is only useful on systems that have EFI firmware
+	and will result in a kernel image that is ~8k larger.  In addition,
+	you must use the latest ELILO loader available at
+	<http://elilo.sourceforge.net> in order to take advantage of
+	kernel initialization using EFI information (neither GRUB nor LILO know
+	anything about EFI).  However, even with this option, the resultant
+	kernel should continue to boot on existing non-EFI platforms.
+
+config IRQBALANCE
+	bool "Enable kernel irq balancing"
+	depends on X86_32 && SMP && X86_IO_APIC
+	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.
+
+# turning this on wastes a bunch of space.
+# Summit needs it only when NUMA is on
+config BOOT_IOREMAP
+	bool
+	depends on X86_32 && (((X86_SUMMIT || X86_GENERICARCH) && NUMA) || (X86 && EFI))
+	default y
+
+config SECCOMP
+	bool "Enable seccomp to safely compute untrusted bytecode"
+	depends on PROC_FS
+	default y
+	help
+	  This kernel feature is useful for number crunching applications
+	  that may need to compute untrusted bytecode during their
+	  execution. By using pipes or other transports made available to
+	  the process as file descriptors supporting the read/write
+	  syscalls, it's possible to isolate those applications in
+	  their own address space using seccomp. Once seccomp is
+	  enabled via /proc/<pid>/seccomp, it cannot be disabled
+	  and the task is only allowed to execute a few safe syscalls
+	  defined by each seccomp mode.
+
+	  If unsure, say Y. Only embedded should say N here.
+
+config CC_STACKPROTECTOR
+	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
+	depends on X86_64 && EXPERIMENTAL
+	help
+         This option turns on the -fstack-protector GCC feature. This
+	  feature puts, at the beginning of critical functions, a canary
+	  value on the stack just before the return address, and validates
+	  the value just before actually returning.  Stack based buffer
+	  overflows (that need to overwrite this return address) now also
+	  overwrite the canary, which gets detected and the attack is then
+	  neutralized via a kernel panic.
+
+	  This feature requires gcc version 4.2 or above, or a distribution
+	  gcc with the feature backported. Older versions are automatically
+	  detected and for those versions, this configuration option is ignored.
+
+config CC_STACKPROTECTOR_ALL
+	bool "Use stack-protector for all functions"
+	depends on CC_STACKPROTECTOR
+	help
+	  Normally, GCC only inserts the canary value protection for
+	  functions that use large-ish on-stack buffers. By enabling
+	  this option, GCC will be asked to do this for ALL functions.
+
+source kernel/Kconfig.hz
+
+config KEXEC
+	bool "kexec system call"
+	help
+	  kexec is a system call that implements the ability to shutdown your
+	  current kernel, and to start another kernel.  It is like a reboot
+	  but it is independent of the system firmware.   And like a reboot
+	  you can start any kernel with it, not just Linux.
+
+	  The name comes from the similarity to the exec system call.
+
+	  It is an ongoing process to be certain the hardware in a machine
+	  is properly shutdown, so do not be surprised if this code does not
+	  initially work for you.  It may help to enable device hotplugging
+	  support.  As of this writing the exact hardware interface is
+	  strongly in flux, so no good recommendation can be made.
+
+config CRASH_DUMP
+	bool "kernel crash dumps (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	depends on X86_64 || (X86_32 && HIGHMEM)
+	help
+	  Generate crash dump after being started by kexec.
+	  This should be normally only set in special crash dump kernels
+	  which are loaded in the main kernel with kexec-tools into
+	  a specially reserved region and then later executed after
+	  a crash by kdump/kexec. The crash dump kernel must be compiled
+	  to a memory address not used by the main kernel or BIOS using
+	  PHYSICAL_START, or it must be built as a relocatable image
+	  (CONFIG_RELOCATABLE=y).
+	  For more details see Documentation/kdump/kdump.txt
+
+config PHYSICAL_START
+	hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
+	default "0x1000000" if X86_NUMAQ
+	default "0x200000" if X86_64
+	default "0x100000"
+	help
+	  This gives the physical address where the kernel is loaded.
+
+	  If kernel is a not relocatable (CONFIG_RELOCATABLE=n) then
+	  bzImage will decompress itself to above physical address and
+	  run from there. Otherwise, bzImage will run from the address where
+	  it has been loaded by the boot loader and will ignore above physical
+	  address.
+
+	  In normal kdump cases one does not have to set/change this option
+	  as now bzImage can be compiled as a completely relocatable image
+	  (CONFIG_RELOCATABLE=y) and be used to load and run from a different
+	  address. This option is mainly useful for the folks who don't want
+	  to use a bzImage for capturing the crash dump and want to use a
+	  vmlinux instead. vmlinux is not relocatable hence a kernel needs
+	  to be specifically compiled to run from a specific memory area
+	  (normally a reserved region) and this option comes handy.
+
+	  So if you are using bzImage for capturing the crash dump, leave
+	  the value here unchanged to 0x100000 and set CONFIG_RELOCATABLE=y.
+	  Otherwise if you plan to use vmlinux for capturing the crash dump
+	  change this value to start of the reserved region (Typically 16MB
+	  0x1000000). In other words, it can be set based on the "X" value as
+	  specified in the "crashkernel=YM@XM" command line boot parameter
+	  passed to the panic-ed kernel. Typically this parameter is set as
+	  crashkernel=64M@16M. Please take a look at
+	  Documentation/kdump/kdump.txt for more details about crash dumps.
+
+	  Usage of bzImage for capturing the crash dump is recommended as
+	  one does not have to build two kernels. Same kernel can be used
+	  as production kernel and capture kernel. Above option should have
+	  gone away after relocatable bzImage support is introduced. But it
+	  is present because there are users out there who continue to use
+	  vmlinux for dump capture. This option should go away down the
+	  line.
+
+	  Don't change this unless you know what you are doing.
+
+config RELOCATABLE
+	bool "Build a relocatable kernel (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  This builds a kernel image that retains relocation information
+	  so it can be loaded someplace besides the default 1MB.
+	  The relocations tend to make the kernel binary about 10% larger,
+	  but are discarded at runtime.
+
+	  One use is for the kexec on panic case where the recovery kernel
+	  must live at a different physical address than the primary
+	  kernel.
+
+	  Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
+	  it has been loaded at and the compile time physical address
+	  (CONFIG_PHYSICAL_START) is ignored.
+
+config PHYSICAL_ALIGN
+	hex
+	prompt "Alignment value to which kernel should be aligned" if X86_32
+	default "0x100000" if X86_32
+	default "0x200000" if X86_64
+	range 0x2000 0x400000
+	help
+	  This value puts the alignment restrictions on physical address
+	  where kernel is loaded and run from. Kernel is compiled for an
+	  address which meets above alignment restriction.
+
+	  If bootloader loads the kernel at a non-aligned address and
+	  CONFIG_RELOCATABLE is set, kernel will move itself to nearest
+	  address aligned to above value and run from there.
+
+	  If bootloader loads the kernel at a non-aligned address and
+	  CONFIG_RELOCATABLE is not set, kernel will ignore the run time
+	  load address and decompress itself to the address it has been
+	  compiled for and run from there. The address for which kernel is
+	  compiled already meets above alignment restrictions. Hence the
+	  end result is that kernel runs from a physical address meeting
+	  above alignment restrictions.
+
+	  Don't change this unless you know what you are doing.
+
+config HOTPLUG_CPU
+	bool "Support for suspend on SMP and hot-pluggable CPUs (EXPERIMENTAL)"
+	depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER
+	---help---
+	  Say Y here to experiment with turning CPUs off and on, and to
+	  enable suspend on SMP systems. CPUs can be controlled through
+	  /sys/devices/system/cpu.
+	  Say N if you want to disable CPU hotplug and don't need to
+	  suspend.
+
+config COMPAT_VDSO
+	bool "Compat VDSO support"
+	default y
+	depends on X86_32
+	help
+	  Map the VDSO to the predictable old-style address too.
+	---help---
+	  Say N here if you are running a sufficiently recent glibc
+	  version (2.3.3 or later), to remove the high-mapped
+	  VDSO mapping and to exclusively use the randomized VDSO.
+
+	  If unsure, say Y.
+
+endmenu
+
+config ARCH_ENABLE_MEMORY_HOTPLUG
+	def_bool y
+	depends on X86_64 || (X86_32 && HIGHMEM)
+
+config MEMORY_HOTPLUG_RESERVE
+	def_bool X86_64
+	depends on (MEMORY_HOTPLUG && DISCONTIGMEM)
+
+config HAVE_ARCH_EARLY_PFN_TO_NID
+	def_bool X86_64
+	depends on NUMA
+
+config OUT_OF_LINE_PFN_TO_PAGE
+	def_bool X86_64
+	depends on DISCONTIGMEM
 
 menu "Power management options"
 	depends on !X86_VOYAGER