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Commit 8f9ca475 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

x86: clean up arch/x86/Kconfig* 



- Consistent alignment of help text
- Use the ---help--- keyword everywhere consistently as a visual separator
- fix whitespace mismatches

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 4f179d12

arch/x86/Kconfig

+202 −202
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@ mainmenu "Linux Kernel Configuration for x86" 
config 64BIT

	bool "64-bit kernel" if ARCH = "x86"

	default ARCH = "x86_64"

	help

	---help---

	  Say yes to build a 64-bit kernel - formerly known as x86_64

	  Say no to build a 32-bit kernel - formerly known as i386
@@ -235,7 +235,7 @@ config SMP 
config SPARSE_IRQ

	bool "Support sparse irq numbering"

	depends on PCI_MSI || HT_IRQ

	help

	---help---

	  This enables support for sparse irqs. This is useful for distro

	  kernels that want to define a high CONFIG_NR_CPUS value but still

	  want to have low kernel memory footprint on smaller machines.
@@ -249,7 +249,7 @@ config NUMA_MIGRATE_IRQ_DESC 
	bool "Move irq desc when changing irq smp_affinity"

	depends on SPARSE_IRQ && NUMA

	default n

	help

	---help---

	  This enables moving irq_desc to cpu/node that irq will use handled.



	  If you don't know what to do here, say N.
@@ -258,19 +258,19 @@ config X86_MPPARSE 
	bool "Enable MPS table" if ACPI

	default y

	depends on X86_LOCAL_APIC

	help

	---help---

	  For old smp systems that do not have proper acpi support. Newer systems

	  (esp with 64bit cpus) with acpi support, MADT and DSDT will override it



config X86_BIGSMP

	bool "Support for big SMP systems with more than 8 CPUs"

	depends on X86_32 && SMP

	help

	---help---

	  This option is needed for the systems that have more than 8 CPUs



config X86_NON_STANDARD

	bool "Support for non-standard x86 platforms"

	help

	---help---

	  If you disable this option then the kernel will only support

	  standard PC platforms. (which covers the vast majority of

	  systems out there.)
@@ -285,7 +285,7 @@ config X86_VISWS 
	bool "SGI 320/540 (Visual Workstation)"

	depends on X86_32 && PCI && X86_MPPARSE && PCI_GODIRECT

	depends on X86_NON_STANDARD

	help

	---help---

	  The SGI Visual Workstation series is an IA32-based workstation

	  based on SGI systems chips with some legacy PC hardware attached.
@@ -300,7 +300,7 @@ config X86_RDC321X 
	depends on X86_NON_STANDARD

	select M486

	select X86_REBOOTFIXUPS

	help

	---help---

	  This option is needed for RDC R-321x system-on-chip, also known

	  as R-8610-(G).

	  If you don't have one of these chips, you should say N here.
@@ -309,7 +309,7 @@ config X86_UV 
	bool "SGI Ultraviolet"

	depends on X86_64

	depends on X86_NON_STANDARD

	help

	---help---

	  This option is needed in order to support SGI Ultraviolet systems.

	  If you don't have one of these, you should say N here.
@@ -318,7 +318,7 @@ config X86_VSMP 
	select PARAVIRT

	depends on X86_64 && PCI

	depends on X86_NON_STANDARD

	help

	---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.
@@ -327,7 +327,7 @@ config X86_ELAN 
	bool "AMD Elan"

	depends on X86_32

	depends on X86_NON_STANDARD

	help

	---help---

	  Select this for an AMD Elan processor.



	  Do not use this option for K6/Athlon/Opteron processors!
@@ -338,7 +338,7 @@ config X86_32_NON_STANDARD 
	bool "Support non-standard 32-bit SMP architectures"

	depends on X86_32 && SMP

	depends on X86_NON_STANDARD

	help

	---help---

	  This option compiles in the NUMAQ, Summit, bigsmp, ES7000, default

	  subarchitectures.  It is intended for a generic binary kernel.

	  if you select them all, kernel will probe it one by one. and will
@@ -349,7 +349,7 @@ config X86_NUMAQ 
	depends on X86_32_NON_STANDARD

	select NUMA

	select X86_MPPARSE

	help

	---help---

	  This option is used for getting Linux to run on a NUMAQ (IBM/Sequent)

	  NUMA multiquad box. This changes the way that processors are

	  bootstrapped, and uses Clustered Logical APIC addressing mode instead
@@ -359,14 +359,14 @@ config X86_NUMAQ 
config X86_SUMMIT

	bool "Summit/EXA (IBM x440)"

	depends on X86_32_NON_STANDARD

	help

	---help---

	  This option is needed for IBM systems that use the Summit/EXA chipset.

	  In particular, it is needed for the x440.



config X86_ES7000

	bool "Support for Unisys ES7000 IA32 series"

	depends on X86_32_NON_STANDARD && X86_BIGSMP

	help

	---help---

	  Support for Unisys ES7000 systems.  Say 'Y' here if this kernel is

	  supposed to run on an IA32-based Unisys ES7000 system.
@@ -374,7 +374,7 @@ config X86_VOYAGER 
	bool "Voyager (NCR)"

	depends on SMP && !PCI && BROKEN

	depends on X86_32_NON_STANDARD

	help

	---help---

	  Voyager is an MCA-based 32-way capable SMP architecture proprietary

	  to NCR Corp.  Machine classes 345x/35xx/4100/51xx are Voyager-based.
@@ -387,7 +387,7 @@ config SCHED_OMIT_FRAME_POINTER 
	def_bool y

	prompt "Single-depth WCHAN output"

	depends on X86

	help

	---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,
@@ -397,7 +397,7 @@ config SCHED_OMIT_FRAME_POINTER 


menuconfig PARAVIRT_GUEST

	bool "Paravirtualized guest support"

	help

	---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.
@@ -411,7 +411,7 @@ config VMI 
	bool "VMI Guest support"

	select PARAVIRT

	depends on X86_32

	help

	---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
@@ -421,7 +421,7 @@ config KVM_CLOCK 
	bool "KVM paravirtualized clock"

	select PARAVIRT

	select PARAVIRT_CLOCK

	help

	---help---

	  Turning on this option will allow you to run a paravirtualized clock

	  when running over the KVM hypervisor. Instead of relying on a PIT

	  (or probably other) emulation by the underlying device model, the host
@@ -431,7 +431,7 @@ config KVM_CLOCK 
config KVM_GUEST

	bool "KVM Guest support"

	select PARAVIRT

	help

	---help---

	  This option enables various optimizations for running under the KVM

	  hypervisor.
@@ -439,7 +439,7 @@ source "arch/x86/lguest/Kconfig" 


config PARAVIRT

	bool "Enable paravirtualization code"

	help

	---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
@@ -454,13 +454,13 @@ endif 
config PARAVIRT_DEBUG

	bool "paravirt-ops debugging"

	depends on PARAVIRT && DEBUG_KERNEL

       help

	---help---

	  Enable to debug paravirt_ops internals.  Specifically, BUG if

	  a paravirt_op is missing when it is called.



config MEMTEST

	bool "Memtest"

	help

	---help---

	  This option adds a kernel parameter 'memtest', which allows memtest

	  to be set.

	        memtest=0, mean disabled; -- default
@@ -482,7 +482,7 @@ source "arch/x86/Kconfig.cpu" 
config HPET_TIMER

	def_bool X86_64

	prompt "HPET Timer Support" if X86_32

	help

	---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.
@@ -507,7 +507,7 @@ config HPET_EMULATE_RTC 
config DMI

	default y

	bool "Enable DMI scanning" if EMBEDDED

	help

	---help---

	  Enabled scanning of DMI to identify machine quirks. Say Y

	  here unless you have verified that your setup is not

	  affected by entries in the DMI blacklist. Required by PNP
@@ -519,7 +519,7 @@ config GART_IOMMU 
	select SWIOTLB

	select AGP

	depends on X86_64 && PCI

	help

	---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.
@@ -534,7 +534,7 @@ config CALGARY_IOMMU 
	bool "IBM Calgary IOMMU support"

	select SWIOTLB

	depends on X86_64 && PCI && EXPERIMENTAL

	help

	---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
@@ -552,7 +552,7 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT 
	def_bool y

	prompt "Should Calgary be enabled by default?"

	depends on CALGARY_IOMMU

	help

	---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
@@ -564,7 +564,7 @@ config AMD_IOMMU 
	select SWIOTLB

	select PCI_MSI

	depends on X86_64 && PCI && ACPI

	help

	---help---

	  With this option you can enable support for AMD IOMMU hardware in

	  your system. An IOMMU is a hardware component which provides

	  remapping of DMA memory accesses from devices. With an AMD IOMMU you
@@ -579,7 +579,7 @@ config AMD_IOMMU_STATS 
	bool "Export AMD IOMMU statistics to debugfs"

	depends on AMD_IOMMU

	select DEBUG_FS

	help

	---help---

	  This option enables code in the AMD IOMMU driver to collect various

	  statistics about whats happening in the driver and exports that

	  information to userspace via debugfs.
@@ -588,7 +588,7 @@ config AMD_IOMMU_STATS 
# need this always selected by IOMMU for the VIA workaround

config SWIOTLB

	def_bool y if X86_64

	help

	---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
@@ -606,7 +606,7 @@ config MAXSMP 
	depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL

	select CPUMASK_OFFSTACK

	default n

	help

	---help---

	  Configure maximum number of CPUS and NUMA Nodes for this architecture.

	  If unsure, say N.
@@ -617,7 +617,7 @@ config NR_CPUS 
	default "4096" if MAXSMP

	default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)

	default "8" if SMP

	help

	---help---

	  This allows you to specify the maximum number of CPUs which this

	  kernel will support.  The maximum supported value is 512 and the

	  minimum value which makes sense is 2.
@@ -628,7 +628,7 @@ config NR_CPUS 
config SCHED_SMT

	bool "SMT (Hyperthreading) scheduler support"

	depends on X86_HT

	help

	---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
@@ -638,7 +638,7 @@ config SCHED_MC 
	def_bool y

	prompt "Multi-core scheduler support"

	depends on X86_HT

	help

	---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.
@@ -648,7 +648,7 @@ source "kernel/Kconfig.preempt" 
config X86_UP_APIC

	bool "Local APIC support on uniprocessors"

	depends on X86_32 && !SMP && !X86_32_NON_STANDARD

	help

	---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
@@ -661,7 +661,7 @@ config X86_UP_APIC 
config X86_UP_IOAPIC

	bool "IO-APIC support on uniprocessors"

	depends on X86_UP_APIC

	help

	---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.
@@ -686,7 +686,7 @@ config X86_REROUTE_FOR_BROKEN_BOOT_IRQS 
	bool "Reroute for broken boot IRQs"

	default n

	depends on X86_IO_APIC

	help

	---help---

	  This option enables a workaround that fixes a source of

	  spurious interrupts. This is recommended when threaded

	  interrupt handling is used on systems where the generation of
@@ -726,7 +726,7 @@ config X86_MCE_INTEL 
	def_bool y

	prompt "Intel MCE features"

	depends on X86_64 && X86_MCE && X86_LOCAL_APIC

	help

	---help---

	   Additional support for intel specific MCE features such as

	   the thermal monitor.
@@ -734,14 +734,14 @@ config X86_MCE_AMD 
	def_bool y

	prompt "AMD MCE features"

	depends on X86_64 && X86_MCE && X86_LOCAL_APIC

	help

	---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

	---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).
@@ -754,7 +754,7 @@ config X86_MCE_NONFATAL 
config X86_MCE_P4THERMAL

	bool "check for P4 thermal throttling interrupt."

	depends on X86_32 && X86_MCE && (X86_UP_APIC || SMP)

	help

	---help---

	  Enabling this feature will cause a message to be printed when the P4

	  enters thermal throttling.
@@ -762,7 +762,7 @@ config VM86 
	bool "Enable VM86 support" if EMBEDDED

	default y

	depends on X86_32

	help

	---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
@@ -844,7 +844,7 @@ config MICROCODE_INTEL 
	depends on MICROCODE

	default MICROCODE

	select FW_LOADER

       --help---

	---help---

	  This options enables microcode patch loading support for Intel

	  processors.
@@ -856,7 +856,7 @@ config MICROCODE_AMD 
	bool "AMD microcode patch loading support"

	depends on MICROCODE

	select FW_LOADER

       --help---

	---help---

	  If you select this option, microcode patch loading support for AMD

	  processors will be enabled.
@@ -866,7 +866,7 @@ config MICROCODE_AMD 


config X86_MSR

	tristate "/dev/cpu/*/msr - Model-specific register support"

	help

	---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.
@@ -875,7 +875,7 @@ config X86_MSR 


config X86_CPUID

	tristate "/dev/cpu/*/cpuid - CPU information support"

	help

	---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
@@ -927,7 +927,7 @@ config NOHIGHMEM 
config HIGHMEM4G

	bool "4GB"

	depends on !X86_NUMAQ

	help

	---help---

	  Select this if you have a 32-bit processor and between 1 and 4

	  gigabytes of physical RAM.
@@ -935,7 +935,7 @@ config HIGHMEM64G 
	bool "64GB"

	depends on !M386 && !M486

	select X86_PAE

	help

	---help---

	  Select this if you have a 32-bit processor and more than 4

	  gigabytes of physical RAM.
@@ -946,7 +946,7 @@ choice 
	prompt "Memory split" if EMBEDDED

	default VMSPLIT_3G

	depends on X86_32

	help

	---help---

	  Select the desired split between kernel and user memory.



	  If the address range available to the kernel is less than the
@@ -992,7 +992,7 @@ config HIGHMEM 
config X86_PAE

	bool "PAE (Physical Address Extension) Support"

	depends on X86_32 && !HIGHMEM4G

	help

	---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
@@ -1005,7 +1005,7 @@ config DIRECT_GBPAGES 
	bool "Enable 1GB pages for kernel pagetables" if EMBEDDED

	default y

	depends on X86_64

	help

	---help---

	  Allow the kernel linear mapping to use 1GB pages on CPUs that

	  support it. This can improve the kernel's performance a tiny bit by

	  reducing TLB pressure. If in doubt, say "Y".
@@ -1016,7 +1016,7 @@ config NUMA 
	depends on SMP

	depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)

	default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)

	help

	---help---

	  Enable NUMA (Non Uniform Memory Access) support.



	  The kernel will try to allocate memory used by a CPU on the
@@ -1039,7 +1039,7 @@ config K8_NUMA 
	def_bool y

	prompt "Old style AMD Opteron NUMA detection"

	depends on X86_64 && NUMA && PCI

	help

	---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
@@ -1051,7 +1051,7 @@ config X86_64_ACPI_NUMA 
	prompt "ACPI NUMA detection"

	depends on X86_64 && NUMA && ACPI && PCI

	select ACPI_NUMA

	help

	---help---

	  Enable ACPI SRAT based node topology detection.



# Some NUMA nodes have memory ranges that span
@@ -1066,7 +1066,7 @@ config NODES_SPAN_OTHER_NODES 
config NUMA_EMU

	bool "NUMA emulation"

	depends on X86_64 && NUMA

	help

	---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.
@@ -1079,7 +1079,7 @@ config NODES_SHIFT 
	default "4" if X86_NUMAQ

	default "3"

	depends on NEED_MULTIPLE_NODES

	help

	---help---

	  Specify the maximum number of NUMA Nodes available on the target

	  system.  Increases memory reserved to accomodate various tables.
@@ -1134,7 +1134,7 @@ source "mm/Kconfig" 
config HIGHPTE

	bool "Allocate 3rd-level pagetables from highmem"

	depends on X86_32 && (HIGHMEM4G || HIGHMEM64G)

	help

	---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
@@ -1142,7 +1142,7 @@ config HIGHPTE 


config X86_CHECK_BIOS_CORRUPTION

	bool "Check for low memory corruption"

	help

	---help---

	  Periodically check for memory corruption in low memory, which

	  is suspected to be caused by BIOS.  Even when enabled in the

	  configuration, it is disabled at runtime.  Enable it by
@@ -1166,14 +1166,14 @@ config X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK 
	bool "Set the default setting of memory_corruption_check"

	depends on X86_CHECK_BIOS_CORRUPTION

	default y

	help

	---help---

	  Set whether the default state of memory_corruption_check is

	  on or off.



config X86_RESERVE_LOW_64K

	bool "Reserve low 64K of RAM on AMI/Phoenix BIOSen"

	default y

	help

	---help---

	  Reserve the first 64K of physical RAM on BIOSes that are known

	  to potentially corrupt that memory range. A numbers of BIOSes are

	  known to utilize this area during suspend/resume, so it must not
@@ -1254,7 +1254,7 @@ config MTRR_SANITIZER 
	def_bool y

	prompt "MTRR cleanup support"

	depends on MTRR

	help

	---help---

	  Convert MTRR layout from continuous to discrete, so X drivers can

	  add writeback entries.
@@ -1269,7 +1269,7 @@ config MTRR_SANITIZER_ENABLE_DEFAULT 
	range 0 1

	default "0"

	depends on MTRR_SANITIZER

	help

	---help---

	  Enable mtrr cleanup default value



config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT
@@ -1277,7 +1277,7 @@ config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT 
	range 0 7

	default "1"

	depends on MTRR_SANITIZER

	help

	---help---

	  mtrr cleanup spare entries default, it can be changed via

	  mtrr_spare_reg_nr=N on the kernel command line.
@@ -1285,7 +1285,7 @@ config X86_PAT 
	bool

	prompt "x86 PAT support"

	depends on MTRR

	help

	---help---

	  Use PAT attributes to setup page level cache control.



	  PATs are the modern equivalents of MTRRs and are much more
@@ -1313,7 +1313,7 @@ config EFI 
config SECCOMP

	def_bool y

	prompt "Enable seccomp to safely compute untrusted bytecode"

	help

	---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
@@ -1333,7 +1333,7 @@ config CC_STACKPROTECTOR 
	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"

	depends on X86_64

	select CC_STACKPROTECTOR_ALL

	help

	---help---

	  This option turns on the -fstack-protector GCC feature. This

	  feature puts, at the beginning of functions, a canary value on

	  the stack just before the return address, and validates
@@ -1351,7 +1351,7 @@ source kernel/Kconfig.hz 


config KEXEC

	bool "kexec system call"

	help

	---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
@@ -1368,7 +1368,7 @@ config KEXEC 
config CRASH_DUMP

	bool "kernel crash dumps"

	depends on X86_64 || (X86_32 && HIGHMEM)

	help

	---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
@@ -1383,7 +1383,7 @@ config KEXEC_JUMP 
	bool "kexec jump (EXPERIMENTAL)"

	depends on EXPERIMENTAL

	depends on KEXEC && HIBERNATION && X86_32

	help

	---help---

	  Jump between original kernel and kexeced kernel and invoke

	  code in physical address mode via KEXEC
@@ -1392,7 +1392,7 @@ config PHYSICAL_START 
	default "0x1000000" if X86_NUMAQ

	default "0x200000" if X86_64

	default "0x100000"

	help

	---help---

	  This gives the physical address where the kernel is loaded.



	  If kernel is a not relocatable (CONFIG_RELOCATABLE=n) then
@@ -1433,7 +1433,7 @@ config PHYSICAL_START 
config RELOCATABLE

	bool "Build a relocatable kernel (EXPERIMENTAL)"

	depends on EXPERIMENTAL

	help

	---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,
@@ -1453,7 +1453,7 @@ config PHYSICAL_ALIGN 
	default "0x100000" if X86_32

	default "0x200000" if X86_64

	range 0x2000 0x400000

	help

	---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.
@@ -1486,7 +1486,7 @@ config COMPAT_VDSO 
	def_bool y

	prompt "Compat VDSO support"

	depends on X86_32 || IA32_EMULATION

	help

	---help---

	  Map the 32-bit VDSO to the predictable old-style address too.

	---help---

	  Say N here if you are running a sufficiently recent glibc
@@ -1498,7 +1498,7 @@ config COMPAT_VDSO 
config CMDLINE_BOOL

	bool "Built-in kernel command line"

	default n

	help

	---help---

	  Allow for specifying boot arguments to the kernel at

	  build time.  On some systems (e.g. embedded ones), it is

	  necessary or convenient to provide some or all of the
@@ -1516,7 +1516,7 @@ config CMDLINE 
	string "Built-in kernel command string"

	depends on CMDLINE_BOOL

	default ""

	help

	---help---

	  Enter arguments here that should be compiled into the kernel

	  image and used at boot time.  If the boot loader provides a

	  command line at boot time, it is appended to this string to
@@ -1533,7 +1533,7 @@ config CMDLINE_OVERRIDE 
	bool "Built-in command line overrides boot loader arguments"

	default n

	depends on CMDLINE_BOOL

	help

	---help---

	  Set this option to 'Y' to have the kernel ignore the boot loader

	  command line, and use ONLY the built-in command line.
@@ -1632,7 +1632,7 @@ if APM 


config APM_IGNORE_USER_SUSPEND

	bool "Ignore USER SUSPEND"

	help

	---help---

	  This option will ignore USER SUSPEND requests. On machines with a

	  compliant APM BIOS, you want to say N. However, on the NEC Versa M

	  series notebooks, it is necessary to say Y because of a BIOS bug.
@@ -1656,7 +1656,7 @@ config APM_DO_ENABLE 


config APM_CPU_IDLE

	bool "Make CPU Idle calls when idle"

	help

	---help---

	  Enable calls to APM CPU Idle/CPU Busy inside the kernel's idle loop.

	  On some machines, this can activate improved power savings, such as

	  a slowed CPU clock rate, when the machine is idle. These idle calls
@@ -1667,7 +1667,7 @@ config APM_CPU_IDLE 


config APM_DISPLAY_BLANK

	bool "Enable console blanking using APM"

	help

	---help---

	  Enable console blanking using the APM. Some laptops can use this to

	  turn off the LCD backlight when the screen blanker of the Linux

	  virtual console blanks the screen. Note that this is only used by
@@ -1680,7 +1680,7 @@ config APM_DISPLAY_BLANK 


config APM_ALLOW_INTS

	bool "Allow interrupts during APM BIOS calls"

	help

	---help---

	  Normally we disable external interrupts while we are making calls to

	  the APM BIOS as a measure to lessen the effects of a badly behaving

	  BIOS implementation.  The BIOS should reenable interrupts if it
@@ -1705,7 +1705,7 @@ config PCI 
	bool "PCI support"

	default y

	select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC)

	help

	---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
@@ -1776,7 +1776,7 @@ config PCI_MMCONFIG 
config DMAR

	bool "Support for DMA Remapping Devices (EXPERIMENTAL)"

	depends on X86_64 && PCI_MSI && ACPI && EXPERIMENTAL

	help

	---help---

	  DMA remapping (DMAR) devices support enables independent address

	  translations for Direct Memory Access (DMA) from devices.

	  These DMA remapping devices are reported via ACPI tables
@@ -1798,7 +1798,7 @@ config DMAR_GFX_WA 
	def_bool y

	prompt "Support for Graphics workaround"

	depends on DMAR

	help

	---help---

	  Current Graphics drivers tend to use physical address

	  for DMA and avoid using DMA APIs. Setting this config

	  option permits the IOMMU driver to set a unity map for
@@ -1808,7 +1808,7 @@ config DMAR_GFX_WA 
config DMAR_FLOPPY_WA

	def_bool y

	depends on DMAR

	help

	---help---

	  Floppy disk drivers are know to bypass DMA API calls

	  thereby failing to work when IOMMU is enabled. This

	  workaround will setup a 1:1 mapping for the first
@@ -1817,7 +1817,7 @@ config DMAR_FLOPPY_WA 
config INTR_REMAP

	bool "Support for Interrupt Remapping (EXPERIMENTAL)"

	depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI && EXPERIMENTAL

	help

	---help---

	  Supports Interrupt remapping for IO-APIC and MSI devices.

	  To use x2apic mode in the CPU's which support x2APIC enhancements or

	  to support platforms with CPU's having > 8 bit APIC ID, say Y.
@@ -1834,7 +1834,7 @@ if X86_32 


config ISA

	bool "ISA support"

	help

	---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
@@ -1861,7 +1861,7 @@ source "drivers/eisa/Kconfig" 


config MCA

	bool "MCA support"

	help

	---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
@@ -1871,7 +1871,7 @@ source "drivers/mca/Kconfig" 


config SCx200

	tristate "NatSemi SCx200 support"

	help

	---help---

	  This provides basic support for National Semiconductor's

	  (now AMD's) Geode processors.  The driver probes for the

	  PCI-IDs of several on-chip devices, so its a good dependency
@@ -1883,7 +1883,7 @@ config SCx200HR_TIMER 
	tristate "NatSemi SCx200 27MHz High-Resolution Timer Support"

	depends on SCx200 && GENERIC_TIME

	default y

	help

	---help---

	  This driver provides a clocksource built upon the on-chip

	  27MHz high-resolution timer.  Its also a workaround for

	  NSC Geode SC-1100's buggy TSC, which loses time when the
@@ -1894,7 +1894,7 @@ config GEODE_MFGPT_TIMER 
	def_bool y

	prompt "Geode Multi-Function General Purpose Timer (MFGPT) events"

	depends on MGEODE_LX && GENERIC_TIME && GENERIC_CLOCKEVENTS

	help

	---help---

	  This driver provides a clock event source based on the MFGPT

	  timer(s) in the CS5535 and CS5536 companion chip for the geode.

	  MFGPTs have a better resolution and max interval than the
@@ -1903,7 +1903,7 @@ config GEODE_MFGPT_TIMER 
config OLPC

	bool "One Laptop Per Child support"

	default n

	help

	---help---

	  Add support for detecting the unique features of the OLPC

	  XO hardware.
@@ -1928,7 +1928,7 @@ config IA32_EMULATION 
	bool "IA32 Emulation"

	depends on X86_64

	select COMPAT_BINFMT_ELF

	help

	---help---

	  Include code to run 32-bit programs under a 64-bit kernel. You should

	  likely turn this on, unless you're 100% sure that you don't have any

	  32-bit programs left.
@@ -1936,7 +1936,7 @@ config IA32_EMULATION 
config IA32_AOUT

	tristate "IA32 a.out support"

	depends on IA32_EMULATION

       help

	---help---

	  Support old a.out binaries in the 32bit emulation.



config COMPAT

arch/x86/Kconfig.cpu

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arch/x86/Kconfig.debug

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