# Select 32 or 64 bit
config CONFIG_64BIT
	bool "64-bit kernel" if CONFIG_ARCH = "x86"
	default CONFIG_ARCH != "i386"
	---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

config CONFIG_X86_32
	def_bool y
	depends on !CONFIG_64BIT
	# Options that are inherently 32-bit kernel only:
	select CONFIG_ARCH_WANT_IPC_PARSE_VERSION
	select CONFIG_CLKSRC_I8253
	select CONFIG_CLONE_BACKWARDS
	select CONFIG_HAVE_AOUT
	select CONFIG_HAVE_GENERIC_DMA_COHERENT
	select CONFIG_MODULES_USE_ELF_REL
	select CONFIG_OLD_SIGACTION

config CONFIG_X86_64
	def_bool y
	depends on CONFIG_64BIT
	# Options that are inherently 64-bit kernel only:
	select CONFIG_ARCH_HAS_GIGANTIC_PAGE
	select CONFIG_ARCH_SUPPORTS_INT128
	select CONFIG_ARCH_USE_CMPXCHG_LOCKREF
	select CONFIG_HAVE_ARCH_SOFT_DIRTY
	select CONFIG_MODULES_USE_ELF_RELA
	select CONFIG_X86_DEV_DMA_OPS

#
# Arch settings
#
# ( Note that options that are marked 'if CONFIG_X86_64' could in principle be
#   ported to 32-bit as well. )
#
config CONFIG_X86
	def_bool y
	#
	# Note: keep this list sorted alphabetically
	#
	select CONFIG_ACPI_LEGACY_TABLES_LOOKUP	if CONFIG_ACPI
	select CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT	if CONFIG_ACPI
	select CONFIG_ANON_INODES
	select CONFIG_ARCH_CLOCKSOURCE_DATA
	select CONFIG_ARCH_DISCARD_MEMBLOCK
	select CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE	if CONFIG_ACPI
	select CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED
	select CONFIG_ARCH_HAS_ELF_RANDOMIZE
	select CONFIG_ARCH_HAS_FAST_MULTIPLIER
	select CONFIG_ARCH_HAS_GCOV_PROFILE_ALL
	select CONFIG_ARCH_HAS_KCOV
	select CONFIG_ARCH_HAS_MMIO_FLUSH
	select CONFIG_ARCH_HAS_PMEM_API		if CONFIG_X86_64
	select CONFIG_ARCH_HAS_SG_CHAIN
	select CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL
	select CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
	select CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC		if CONFIG_ACPI
	select CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT
	select CONFIG_ARCH_MIGHT_HAVE_PC_SERIO
	select CONFIG_ARCH_SUPPORTS_ATOMIC_RMW
	select CONFIG_ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
	select CONFIG_ARCH_SUPPORTS_NUMA_BALANCING	if CONFIG_X86_64
	select CONFIG_ARCH_USE_BUILTIN_BSWAP
	select CONFIG_ARCH_USE_QUEUED_RWLOCKS
	select CONFIG_ARCH_USE_QUEUED_SPINLOCKS
	select CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH if CONFIG_SMP
	select CONFIG_ARCH_WANT_FRAME_POINTERS
	select CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT
	select CONFIG_BUILDTIME_EXTABLE_SORT
	select CONFIG_CLKEVT_I8253
	select CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE
	select CONFIG_CLOCKSOURCE_WATCHDOG
	select CONFIG_DCACHE_WORD_ACCESS
	select CONFIG_EDAC_ATOMIC_SCRUB
	select CONFIG_EDAC_SUPPORT
	select CONFIG_GENERIC_CLOCKEVENTS
	select CONFIG_GENERIC_CLOCKEVENTS_BROADCAST	if CONFIG_X86_64 || (CONFIG_X86_32 && CONFIG_X86_LOCAL_APIC)
	select CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST
	select CONFIG_GENERIC_CMOS_UPDATE
	select CONFIG_GENERIC_CPU_AUTOPROBE
	select CONFIG_GENERIC_EARLY_IOREMAP
	select CONFIG_GENERIC_FIND_FIRST_BIT
	select CONFIG_GENERIC_IOMAP
	select CONFIG_GENERIC_IRQ_PROBE
	select CONFIG_GENERIC_IRQ_SHOW
	select CONFIG_GENERIC_PENDING_IRQ		if CONFIG_SMP
	select CONFIG_GENERIC_SMP_IDLE_THREAD
	select CONFIG_GENERIC_STRNCPY_FROM_USER
	select CONFIG_GENERIC_STRNLEN_USER
	select CONFIG_GENERIC_TIME_VSYSCALL
	select CONFIG_HAVE_ACPI_APEI			if CONFIG_ACPI
	select CONFIG_HAVE_ACPI_APEI_NMI		if CONFIG_ACPI
	select CONFIG_HAVE_ALIGNED_STRUCT_PAGE		if CONFIG_SLUB
	select CONFIG_HAVE_ARCH_AUDITSYSCALL
	select CONFIG_HAVE_ARCH_HARDENED_USERCOPY
	select CONFIG_HAVE_ARCH_HUGE_VMAP		if CONFIG_X86_64 || CONFIG_X86_PAE
	select CONFIG_HAVE_ARCH_JUMP_LABEL
	select CONFIG_HAVE_ARCH_KASAN			if CONFIG_X86_64 && CONFIG_SPARSEMEM_VMEMMAP
	select CONFIG_HAVE_ARCH_KGDB
	select CONFIG_HAVE_ARCH_KMEMCHECK
	select CONFIG_HAVE_ARCH_MMAP_RND_BITS		if CONFIG_MMU
	select CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS	if CONFIG_MMU && CONFIG_COMPAT
	select CONFIG_HAVE_ARCH_SECCOMP_FILTER
	select CONFIG_HAVE_ARCH_TRACEHOOK
	select CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE
	select CONFIG_HAVE_ARCH_VMAP_STACK		if CONFIG_X86_64
	select CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES
	select CONFIG_HAVE_CC_STACKPROTECTOR
	select CONFIG_HAVE_CMPXCHG_DOUBLE
	select CONFIG_HAVE_CMPXCHG_LOCAL
	select CONFIG_HAVE_CONTEXT_TRACKING		if CONFIG_X86_64
	select CONFIG_HAVE_COPY_THREAD_TLS
	select CONFIG_HAVE_C_RECORDMCOUNT
	select CONFIG_HAVE_DEBUG_KMEMLEAK
	select CONFIG_HAVE_DEBUG_STACKOVERFLOW
	select CONFIG_HAVE_DMA_API_DEBUG
	select CONFIG_HAVE_DMA_CONTIGUOUS
	select CONFIG_HAVE_DYNAMIC_FTRACE
	select CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS
	select CONFIG_HAVE_EBPF_JIT			if CONFIG_X86_64
	select CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
	select CONFIG_HAVE_EXIT_THREAD
	select CONFIG_HAVE_FENTRY			if CONFIG_X86_64
	select CONFIG_HAVE_FTRACE_MCOUNT_RECORD
	select CONFIG_HAVE_FUNCTION_GRAPH_TRACER
	select CONFIG_HAVE_FUNCTION_TRACER
	select CONFIG_HAVE_GCC_PLUGINS
	select CONFIG_HAVE_HW_BREAKPOINT
	select CONFIG_HAVE_IDE
	select CONFIG_HAVE_IOREMAP_PROT
	select CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK	if CONFIG_X86_64
	select CONFIG_HAVE_IRQ_TIME_ACCOUNTING
	select CONFIG_HAVE_KERNEL_BZIP2
	select CONFIG_HAVE_KERNEL_GZIP
	select CONFIG_HAVE_KERNEL_LZ4
	select CONFIG_HAVE_KERNEL_LZMA
	select CONFIG_HAVE_KERNEL_LZO
	select CONFIG_HAVE_KERNEL_XZ
	select CONFIG_HAVE_KPROBES
	select CONFIG_HAVE_KPROBES_ON_FTRACE
	select CONFIG_HAVE_KRETPROBES
	select CONFIG_HAVE_KVM
	select CONFIG_HAVE_LIVEPATCH			if CONFIG_X86_64
	select CONFIG_HAVE_MEMBLOCK
	select CONFIG_HAVE_MEMBLOCK_NODE_MAP
	select CONFIG_HAVE_MIXED_BREAKPOINTS_REGS
	select CONFIG_HAVE_NMI
	select CONFIG_HAVE_OPROFILE
	select CONFIG_HAVE_OPTPROBES
	select CONFIG_HAVE_PCSPKR_PLATFORM
	select CONFIG_HAVE_PERF_EVENTS
	select CONFIG_HAVE_PERF_EVENTS_NMI
	select CONFIG_HAVE_PERF_REGS
	select CONFIG_HAVE_PERF_USER_STACK_DUMP
	select CONFIG_HAVE_REGS_AND_STACK_ACCESS_API
	select CONFIG_HAVE_STACK_VALIDATION		if CONFIG_X86_64
	select CONFIG_HAVE_SYSCALL_TRACEPOINTS
	select CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
	select CONFIG_HAVE_USER_RETURN_NOTIFIER
	select CONFIG_IRQ_FORCED_THREADING
	select CONFIG_PERF_EVENTS
	select CONFIG_RTC_LIB
	select CONFIG_RTC_MC146818_LIB
	select CONFIG_SPARSE_IRQ
	select CONFIG_SRCU
	select CONFIG_SYSCTL_EXCEPTION_TRACE
	select CONFIG_THREAD_INFO_IN_TASK
	select CONFIG_USER_STACKTRACE_SUPPORT
	select CONFIG_VIRT_TO_BUS
	select CONFIG_X86_FEATURE_NAMES		if CONFIG_PROC_FS

config CONFIG_INSTRUCTION_DECODER
	def_bool y
	depends on CONFIG_KPROBES || CONFIG_PERF_EVENTS || CONFIG_UPROBES

config CONFIG_OUTPUT_FORMAT
	string
	default "elf32-i386" if CONFIG_X86_32
	default "elf64-x86-64" if CONFIG_X86_64

config CONFIG_ARCH_DEFCONFIG
	string
	default "arch/x86/configs/i386_defconfig" if CONFIG_X86_32
	default "arch/x86/configs/x86_64_defconfig" if CONFIG_X86_64

config CONFIG_LOCKDEP_SUPPORT
	def_bool y

config CONFIG_STACKTRACE_SUPPORT
	def_bool y

config CONFIG_MMU
	def_bool y

config CONFIG_ARCH_MMAP_RND_BITS_MIN
	default 28 if CONFIG_64BIT
	default 8

config CONFIG_ARCH_MMAP_RND_BITS_MAX
	default 32 if CONFIG_64BIT
	default 16

config CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN
	default 8

config CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX
	default 16

config CONFIG_SBUS
	bool

config CONFIG_NEED_DMA_MAP_STATE
	def_bool y
	depends on CONFIG_X86_64 || CONFIG_INTEL_IOMMU || CONFIG_DMA_API_DEBUG || CONFIG_SWIOTLB

config CONFIG_NEED_SG_DMA_LENGTH
	def_bool y

config CONFIG_GENERIC_ISA_DMA
	def_bool y
	depends on CONFIG_ISA_DMA_API

config CONFIG_GENERIC_BUG
	def_bool y
	depends on CONFIG_BUG
	select CONFIG_GENERIC_BUG_RELATIVE_POINTERS if CONFIG_X86_64

config CONFIG_GENERIC_BUG_RELATIVE_POINTERS
	bool

config CONFIG_GENERIC_HWEIGHT
	def_bool y

config CONFIG_ARCH_MAY_HAVE_PC_FDC
	def_bool y
	depends on CONFIG_ISA_DMA_API

config CONFIG_RWSEM_XCHGADD_ALGORITHM
	def_bool y

config CONFIG_GENERIC_CALIBRATE_DELAY
	def_bool y

config CONFIG_ARCH_HAS_CPU_RELAX
	def_bool y

config CONFIG_ARCH_HAS_CACHE_LINE_SIZE
	def_bool y

config CONFIG_HAVE_SETUP_PER_CPU_AREA
	def_bool y

config CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK
	def_bool y

config CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK
	def_bool y

config CONFIG_ARCH_HIBERNATION_POSSIBLE
	def_bool y

config CONFIG_ARCH_SUSPEND_POSSIBLE
	def_bool y

config CONFIG_ARCH_WANT_HUGE_PMD_SHARE
	def_bool y

config CONFIG_ARCH_WANT_GENERAL_HUGETLB
	def_bool y

config CONFIG_ZONE_DMA32
	def_bool y if CONFIG_X86_64

config CONFIG_AUDIT_ARCH
	def_bool y if CONFIG_X86_64

config CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING
	def_bool y

config CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC
	def_bool y

config CONFIG_KASAN_SHADOW_OFFSET
	hex
	depends on CONFIG_KASAN
	default 0xdffffc0000000000

config CONFIG_HAVE_INTEL_TXT
	def_bool y
	depends on CONFIG_INTEL_IOMMU && CONFIG_ACPI

config CONFIG_X86_32_SMP
	def_bool y
	depends on CONFIG_X86_32 && CONFIG_SMP

config CONFIG_X86_64_SMP
	def_bool y
	depends on CONFIG_X86_64 && CONFIG_SMP

config CONFIG_X86_32_LAZY_GS
	def_bool y
	depends on CONFIG_X86_32 && !CONFIG_CC_STACKPROTECTOR

config CONFIG_ARCH_SUPPORTS_UPROBES
	def_bool y

config CONFIG_FIX_EARLYCON_MEM
	def_bool y

config CONFIG_DEBUG_RODATA
	def_bool y

config CONFIG_PGTABLE_LEVELS
	int
	default 4 if CONFIG_X86_64
	default 3 if CONFIG_X86_PAE
	default 2

source "init/Kconfig"
source "kernel/Kconfig.freezer"

menu "Processor type and features"

config CONFIG_ZONE_DMA
	bool "DMA memory allocation support" if CONFIG_EXPERT
	default y
	help
	  DMA memory allocation support allows devices with less than 32-bit
	  addressing to allocate within the first 16MB of address space.
	  Disable if no such devices will be used.

	  If unsure, say Y.

config 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, say N. If you have a system with more
	  than one CPU, say Y.

	  If you say N here, the kernel will run on uni- 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,
	  uniprocessor machines. On a uniprocessor 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 <file:Documentation/x86/i386/IO-APIC.txt>,
	  <file:Documentation/nmi_watchdog.txt> and the CONFIG_SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.

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

config CONFIG_X86_FEATURE_NAMES
	bool "Processor feature human-readable names" if CONFIG_EMBEDDED
	default y
	---help---
	  This option compiles in a table of x86 feature bits and corresponding
	  names.  This is required to support /proc/cpuinfo and a few kernel
	  messages.  You can disable this to save space, at the expense of
	  making those few kernel messages show numeric feature bits instead.

	  If in doubt, say Y.

config CONFIG_X86_FAST_FEATURE_TESTS
	bool "Fast CPU feature tests" if CONFIG_EMBEDDED
	default y
	---help---
	  Some fast-paths in the kernel depend on the capabilities of the CPU.
	  Say Y here for the kernel to patch in the appropriate code at runtime
	  based on the capabilities of the CPU. The infrastructure for patching
	  code at runtime takes up some additional space; space-constrained
	  embedded systems may wish to say N here to produce smaller, slightly
	  slower code.

config CONFIG_X86_X2APIC
	bool "Support x2apic"
	depends on CONFIG_X86_LOCAL_APIC && CONFIG_X86_64 && (CONFIG_IRQ_REMAP || CONFIG_HYPERVISOR_GUEST)
	---help---
	  This enables x2apic support on CPUs that have this feature.

	  This allows 32-bit apic IDs (so it can support very large systems),
	  and accesses the local apic via MSRs not via mmio.

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

config CONFIG_X86_MPPARSE
	bool "Enable MPS table" if CONFIG_ACPI || CONFIG_SFI
	default y
	depends on CONFIG_X86_LOCAL_APIC
	---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 CONFIG_X86_BIGSMP
	bool "Support for big SMP systems with more than 8 CPUs"
	depends on CONFIG_X86_32 && CONFIG_SMP
	---help---
	  This option is needed for the systems that have more than 8 CPUs

config CONFIG_GOLDFISH
       def_bool y
       depends on CONFIG_X86_GOLDFISH

config CONFIG_INTEL_RDT_A
	bool "Intel Resource Director Technology Allocation support"
	default n
	depends on CONFIG_X86 && CONFIG_CPU_SUP_INTEL
	select CONFIG_KERNFS
	help
	  Select to enable resource allocation which is a sub-feature of
	  Intel Resource Director Technology(RDT). More information about
	  RDT can be found in the Intel x86 Architecture Software
	  Developer Manual.

	  Say N if unsure.

if CONFIG_X86_32
config CONFIG_X86_EXTENDED_PLATFORM
	bool "Support for extended (non-PC) x86 platforms"
	default y
	---help---
	  If you disable this option then the kernel will only support
	  standard PC platforms. (which covers the vast majority of
	  systems out there.)

	  If you enable this option then you'll be able to select support
	  for the following (non-PC) 32 bit x86 platforms:
		Goldfish (Android emulator)
		AMD Elan
		RDC R-321x SoC
		SGI 320/540 (Visual Workstation)
		CONFIG_STA2X11-based (e.g. Northville)
		Moorestown MID devices

	  If you have one of these systems, or if you want to build a
	  generic distribution kernel, say Y here - otherwise say N.
endif

if CONFIG_X86_64
config CONFIG_X86_EXTENDED_PLATFORM
	bool "Support for extended (non-PC) x86 platforms"
	default y
	---help---
	  If you disable this option then the kernel will only support
	  standard PC platforms. (which covers the vast majority of
	  systems out there.)

	  If you enable this option then you'll be able to select support
	  for the following (non-PC) 64 bit x86 platforms:
		Numascale NumaChip
		ScaleMP vSMP
		SGI Ultraviolet

	  If you have one of these systems, or if you want to build a
	  generic distribution kernel, say Y here - otherwise say N.
endif
# This is an alphabetically sorted list of 64 bit extended platforms
# Please maintain the alphabetic order if and when there are additions
config CONFIG_X86_NUMACHIP
	bool "Numascale NumaChip"
	depends on CONFIG_X86_64
	depends on CONFIG_X86_EXTENDED_PLATFORM
	depends on CONFIG_NUMA
	depends on CONFIG_SMP
	depends on CONFIG_X86_X2APIC
	depends on CONFIG_PCI_MMCONFIG
	---help---
	  Adds support for Numascale NumaChip large-CONFIG_SMP systems. Needed to
	  enable more than ~168 cores.
	  If you don't have one of these, you should say N here.

config CONFIG_X86_VSMP
	bool "ScaleMP vSMP"
	select CONFIG_HYPERVISOR_GUEST
	select CONFIG_PARAVIRT
	depends on CONFIG_X86_64 && CONFIG_PCI
	depends on CONFIG_X86_EXTENDED_PLATFORM
	depends on CONFIG_SMP
	---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.

config CONFIG_X86_UV
	bool "SGI Ultraviolet"
	depends on CONFIG_X86_64
	depends on CONFIG_X86_EXTENDED_PLATFORM
	depends on CONFIG_NUMA
	depends on CONFIG_EFI
	depends on CONFIG_X86_X2APIC
	depends on CONFIG_PCI
	---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.

# Following is an alphabetically sorted list of 32 bit extended platforms
# Please maintain the alphabetic order if and when there are additions

config CONFIG_X86_GOLDFISH
       bool "Goldfish (Virtual Platform)"
       depends on CONFIG_X86_EXTENDED_PLATFORM
       ---help---
	 Enable support for the Goldfish virtual platform used primarily
	 for Android development. Unless you are building for the Android
	 Goldfish emulator say N here.

config CONFIG_X86_INTEL_CE
	bool "CE4100 TV platform"
	depends on CONFIG_PCI
	depends on CONFIG_PCI_GODIRECT
	depends on CONFIG_X86_IO_APIC
	depends on CONFIG_X86_32
	depends on CONFIG_X86_EXTENDED_PLATFORM
	select CONFIG_X86_REBOOTFIXUPS
	select CONFIG_OF
	select CONFIG_OF_EARLY_FLATTREE
	---help---
	  Select for the Intel CE media processor (CE4100) SOC.
	  This option compiles in support for the CE4100 SOC for settop
	  boxes and media devices.

config CONFIG_X86_INTEL_MID
	bool "Intel MID platform support"
	depends on CONFIG_X86_EXTENDED_PLATFORM
	depends on CONFIG_X86_PLATFORM_DEVICES
	depends on CONFIG_PCI
	depends on CONFIG_X86_64 || (CONFIG_PCI_GOANY && CONFIG_X86_32)
	depends on CONFIG_X86_IO_APIC
	select CONFIG_SFI
	select CONFIG_I2C
	select CONFIG_DW_APB_TIMER
	select CONFIG_APB_TIMER
	select CONFIG_INTEL_SCU_IPC
	select CONFIG_MFD_INTEL_MSIC
	---help---
	  Select to build a kernel capable of supporting Intel MID (Mobile
	  Internet Device) platform systems which do not have the CONFIG_PCI legacy
	  interfaces. If you are building for a PC class system say N here.

	  Intel MID platforms are based on an Intel processor and chipset which
	  consume less power than most of the x86 derivatives.

config CONFIG_X86_INTEL_QUARK
	bool "Intel Quark platform support"
	depends on CONFIG_X86_32
	depends on CONFIG_X86_EXTENDED_PLATFORM
	depends on CONFIG_X86_PLATFORM_DEVICES
	depends on CONFIG_X86_TSC
	depends on CONFIG_PCI
	depends on CONFIG_PCI_GOANY
	depends on CONFIG_X86_IO_APIC
	select CONFIG_IOSF_MBI
	select CONFIG_INTEL_IMR
	select CONFIG_COMMON_CLK
	---help---
	  Select to include support for Quark X1000 SoC.
	  Say Y here if you have a Quark based system such as the Arduino
	  compatible Intel Galileo.

config CONFIG_X86_INTEL_LPSS
	bool "Intel Low Power Subsystem Support"
	depends on CONFIG_X86 && CONFIG_ACPI
	select CONFIG_COMMON_CLK
	select CONFIG_PINCTRL
	select CONFIG_IOSF_MBI
	---help---
	  Select to build support for Intel Low Power Subsystem such as
	  found on Intel Lynxpoint PCH. Selecting this option enables
	  things like clock tree (common clock framework) and pincontrol
	  which are needed by the LPSS peripheral drivers.

config CONFIG_X86_AMD_PLATFORM_DEVICE
	bool "AMD ACPI2Platform devices support"
	depends on CONFIG_ACPI
	select CONFIG_COMMON_CLK
	select CONFIG_PINCTRL
	---help---
	  Select to interpret AMD specific CONFIG_ACPI device to platform device
	  such as CONFIG_I2C, UART, GPIO found on AMD Carrizo and later chipsets.
	  CONFIG_I2C and UART depend on CONFIG_COMMON_CLK to set clock. GPIO driver is
	  implemented under CONFIG_PINCTRL subsystem.

config CONFIG_IOSF_MBI
	tristate "Intel SoC IOSF Sideband support for SoC platforms"
	depends on CONFIG_PCI
	---help---
	  This option enables sideband register access support for Intel SoC
	  platforms. On these platforms the IOSF sideband is used in lieu of
	  MSR's for some register accesses, mostly but not limited to thermal
	  and power. Drivers may query the availability of this device to
	  determine if they need the sideband in order to work on these
	  platforms. The sideband is available on the following SoC products.
	  This list is not meant to be exclusive.
	   - BayTrail
	   - Braswell
	   - Quark

	  You should say Y if you are running a kernel on one of these SoC's.

config CONFIG_IOSF_MBI_DEBUG
	bool "Enable IOSF sideband access through debugfs"
	depends on CONFIG_IOSF_MBI && CONFIG_DEBUG_FS
	---help---
	  Select this option to expose the IOSF sideband access registers (MCR,
	  MDR, MCRX) through debugfs to write and read register information from
	  different units on the SoC. This is most useful for obtaining device
	  state information for debug and analysis. As this is a general access
	  mechanism, users of this option would have specific knowledge of the
	  device they want to access.

	  If you don't require the option or are in doubt, say N.

config CONFIG_X86_RDC321X
	bool "RDC R-321x SoC"
	depends on CONFIG_X86_32
	depends on CONFIG_X86_EXTENDED_PLATFORM
	select CONFIG_M486
	select CONFIG_X86_REBOOTFIXUPS
	---help---
	  This option is needed for RDC R-321x system-on-chip, also known
	  as R-8610-(CONFIG_G).
	  If you don't have one of these chips, you should say N here.

config CONFIG_X86_32_NON_STANDARD
	bool "Support non-standard 32-bit SMP architectures"
	depends on CONFIG_X86_32 && CONFIG_SMP
	depends on CONFIG_X86_EXTENDED_PLATFORM
	---help---
	  This option compiles in the bigsmp and CONFIG_STA2X11 default
	  subarchitectures.  It is intended for a generic binary
	  kernel. If you select them all, kernel will probe it one by
	  one and will fallback to default.

# Alphabetically sorted list of Non standard 32 bit platforms

config CONFIG_X86_SUPPORTS_MEMORY_FAILURE
	def_bool y
	# MCE code calls memory_failure():
	depends on CONFIG_X86_MCE
	# On 32-bit this adds too big of CONFIG_NODES_SHIFT and we run out of page flags:
	# On 32-bit CONFIG_SPARSEMEM adds too big of SECTIONS_WIDTH:
	depends on CONFIG_X86_64 || !CONFIG_SPARSEMEM
	select CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE

config CONFIG_STA2X11
	bool "STA2X11 Companion Chip Support"
	depends on CONFIG_X86_32_NON_STANDARD && CONFIG_PCI
	select CONFIG_X86_DEV_DMA_OPS
	select CONFIG_X86_DMA_REMAP
	select CONFIG_SWIOTLB
	select CONFIG_MFD_STA2X11
	select CONFIG_GPIOLIB
	default n
	---help---
	  This adds support for boards based on the CONFIG_STA2X11 IO-Hub,
	  a.k.a. "ConneXt". The chip is used in place of the standard
	  PC chipset, so all "standard" peripherals are missing. If this
	  option is selected the kernel will still be able to boot on
	  standard PC machines.

config CONFIG_X86_32_IRIS
	tristate "Eurobraille/Iris poweroff module"
	depends on CONFIG_X86_32
	---help---
	  The Iris machines from EuroBraille do not have CONFIG_APM or CONFIG_ACPI support
	  to shut themselves down properly.  CONFIG_A special I/O sequence is
	  needed to do so, which is what this module does at
	  kernel shutdown.

	  This is only for Iris machines from EuroBraille.

	  If unused, say N.

config CONFIG_SCHED_OMIT_FRAME_POINTER
	def_bool y
	prompt "Single-depth WCHAN output"
	depends on CONFIG_X86
	---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".

menuconfig CONFIG_HYPERVISOR_GUEST
	bool "Linux guest support"
	---help---
	  Say Y here to enable options for running Linux under various hyper-
	  visors. This option enables basic hypervisor detection and platform
	  setup.

	  If you say N, all options in this submenu will be skipped and
	  disabled, and Linux guest support won't be built in.

if CONFIG_HYPERVISOR_GUEST

config CONFIG_PARAVIRT
	bool "Enable paravirtualization code"
	---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.

config CONFIG_PARAVIRT_DEBUG
	bool "paravirt-ops debugging"
	depends on CONFIG_PARAVIRT && CONFIG_DEBUG_KERNEL
	---help---
	  Enable to debug paravirt_ops internals.  Specifically, CONFIG_BUG if
	  a paravirt_op is missing when it is called.

config CONFIG_PARAVIRT_SPINLOCKS
	bool "Paravirtualization layer for spinlocks"
	depends on CONFIG_PARAVIRT && CONFIG_SMP
	---help---
	  Paravirtualized spinlocks allow a pvops backend to replace the
	  spinlock implementation with something virtualization-friendly
	  (for example, block the virtual CPU rather than spinning).

	  It has a minimal impact on native kernels and gives a nice performance
	  benefit on paravirtualized CONFIG_KVM / Xen kernels.

	  If you are unsure how to answer this question, answer Y.

config CONFIG_QUEUED_LOCK_STAT
	bool "Paravirt queued spinlock statistics"
	depends on CONFIG_PARAVIRT_SPINLOCKS && CONFIG_DEBUG_FS
	---help---
	  Enable the collection of statistical data on the slowpath
	  behavior of paravirtualized queued spinlocks and report
	  them on debugfs.

source "arch/x86/xen/Kconfig"

config CONFIG_KVM_GUEST
	bool "KVM Guest support (including kvmclock)"
	depends on CONFIG_PARAVIRT
	select CONFIG_PARAVIRT_CLOCK
	default y
	---help---
	  This option enables various optimizations for running under the CONFIG_KVM
	  hypervisor. It includes a paravirtualized clock, so that instead
	  of relying on a PIT (or probably other) emulation by the
	  underlying device model, the host provides the guest with
	  timing infrastructure such as time of day, and system time

config CONFIG_KVM_DEBUG_FS
	bool "Enable debug information for KVM Guests in debugfs"
	depends on CONFIG_KVM_GUEST && CONFIG_DEBUG_FS
	default n
	---help---
	  This option enables collection of various statistics for CONFIG_KVM guest.
	  Statistics are displayed in debugfs filesystem. Enabling this option
	  may incur significant overhead.

source "arch/x86/lguest/Kconfig"

config CONFIG_PARAVIRT_TIME_ACCOUNTING
	bool "Paravirtual steal time accounting"
	depends on CONFIG_PARAVIRT
	default n
	---help---
	  Select this option to enable fine granularity task steal time
	  accounting. Time spent executing other tasks in parallel with
	  the current vCPU is discounted from the vCPU power. To account for
	  that, there can be a small performance impact.

	  If in doubt, say N here.

config CONFIG_PARAVIRT_CLOCK
	bool

endif #CONFIG_HYPERVISOR_GUEST

config CONFIG_NO_BOOTMEM
	def_bool y

source "arch/x86/Kconfig.cpu"

config CONFIG_HPET_TIMER
	def_bool CONFIG_X86_64
	prompt "HPET Timer Support" if CONFIG_X86_32
	---help---
	  Use the IA-PC CONFIG_HPET (High Precision Event Timer) to manage
	  time in preference to the PIT and CONFIG_RTC, if a CONFIG_HPET is
	  present.
	  CONFIG_HPET is the next generation timer replacing legacy 8254s.
	  The CONFIG_HPET provides a stable time base on CONFIG_SMP
	  systems, unlike the TSC, but it is more expensive to access,
	  as it is off-chip.  The interface used is documented
	  in the CONFIG_HPET spec, revision 1.

	  You can safely choose Y here.  However, CONFIG_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 CONFIG_HPET_EMULATE_RTC
	def_bool y
	depends on CONFIG_HPET_TIMER && (CONFIG_RTC=y || CONFIG_RTC=m || CONFIG_RTC_DRV_CMOS=m || CONFIG_RTC_DRV_CMOS=y)

config CONFIG_APB_TIMER
       def_bool y if CONFIG_X86_INTEL_MID
       prompt "Intel MID APB Timer Support" if CONFIG_X86_INTEL_MID
       select CONFIG_DW_APB_TIMER
       depends on CONFIG_X86_INTEL_MID && CONFIG_SFI
       help
         APB timer is the replacement for 8254, CONFIG_HPET on CONFIG_X86 MID platforms.
         The APBT provides a stable time base on CONFIG_SMP
         systems, unlike the TSC, but it is more expensive to access,
         as it is off-chip. APB timers are always running regardless of CPU
         CONFIG_C states, they are used as per CPU clockevent device when possible.

# Mark as expert because too many people got it wrong.
# The code disables itself when not needed.
config CONFIG_DMI
	default y
	select CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK
	bool "Enable DMI scanning" if CONFIG_EXPERT
	---help---
	  Enabled scanning of CONFIG_DMI to identify machine quirks. Say Y
	  here unless you have verified that your setup is not
	  affected by entries in the CONFIG_DMI blacklist. Required by CONFIG_PNP
	  BIOS code.

config CONFIG_GART_IOMMU
	bool "Old AMD GART IOMMU support"
	select CONFIG_SWIOTLB
	depends on CONFIG_X86_64 && CONFIG_PCI && CONFIG_AMD_NB
	---help---
	  Provides a driver for older AMD Athlon64/Opteron/Turion/Sempron
	  GART based hardware IOMMUs.

	  The GART supports full DMA access for devices with 32-bit access
	  limitations, on systems with more than 3 GB. This is usually needed
	  for CONFIG_USB, sound, many CONFIG_IDE/SATA chipsets and some other devices.

	  Newer systems typically have a modern AMD IOMMU, supported via
	  the CONFIG_AMD_IOMMU=y config option.

	  In normal configurations this driver is only active when needed:
	  there's more than 3 GB of memory and the system contains a
	  32-bit limited device.

	  If unsure, say Y.

config CONFIG_CALGARY_IOMMU
	bool "IBM Calgary IOMMU support"
	select CONFIG_SWIOTLB
	depends on CONFIG_X86_64 && CONFIG_PCI
	---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 CONFIG_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 CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT
	def_bool y
	prompt "Should Calgary be enabled by default?"
	depends on CONFIG_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 CONFIG_SWIOTLB
	def_bool y if CONFIG_X86_64
	---help---
	  Support for software bounce buffers used on x86-64 systems
	  which don't have a hardware IOMMU. Using this CONFIG_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 CONFIG_IOMMU_HELPER
	def_bool y
	depends on CONFIG_CALGARY_IOMMU || CONFIG_GART_IOMMU || CONFIG_SWIOTLB || CONFIG_AMD_IOMMU

config CONFIG_MAXSMP
	bool "Enable Maximum number of SMP Processors and NUMA Nodes"
	depends on CONFIG_X86_64 && CONFIG_SMP && CONFIG_DEBUG_KERNEL
	select CONFIG_CPUMASK_OFFSTACK
	---help---
	  Enable maximum number of CPUS and CONFIG_NUMA Nodes for this architecture.
	  If unsure, say N.

config CONFIG_NR_CPUS
	int "Maximum number of CPUs" if CONFIG_SMP && !CONFIG_MAXSMP
	range 2 8 if CONFIG_SMP && CONFIG_X86_32 && !CONFIG_X86_BIGSMP
	range 2 512 if CONFIG_SMP && !CONFIG_MAXSMP && !CONFIG_CPUMASK_OFFSTACK
	range 2 8192 if CONFIG_SMP && !CONFIG_MAXSMP && CONFIG_CPUMASK_OFFSTACK && CONFIG_X86_64
	default "1" if !CONFIG_SMP
	default "8192" if CONFIG_MAXSMP
	default "32" if CONFIG_SMP && CONFIG_X86_BIGSMP
	default "8" if CONFIG_SMP && CONFIG_X86_32
	default "64" if CONFIG_SMP
	---help---
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  If CONFIG_CPUMASK_OFFSTACK is enabled, the maximum
	  supported value is 8192, otherwise the maximum value is 512.  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 CONFIG_SCHED_SMT
	bool "SMT (Hyperthreading) scheduler support"
	depends on CONFIG_SMP
	---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 CONFIG_SCHED_MC
	def_bool y
	prompt "Multi-core scheduler support"
	depends on CONFIG_SMP
	---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.

config CONFIG_SCHED_MC_PRIO
	bool "CPU core priorities scheduler support"
	depends on CONFIG_SCHED_MC && CONFIG_CPU_SUP_INTEL
	select CONFIG_X86_INTEL_PSTATE
	select CONFIG_CPU_FREQ
	default y
	---help---
	  Intel Turbo Boost Max Technology 3.0 enabled CPUs have a
	  core ordering determined at manufacturing time, which allows
	  certain cores to reach higher turbo frequencies (when running
	  single threaded workloads) than others.

	  Enabling this kernel feature teaches the scheduler about
	  the TBM3 (aka ITMT) priority order of the CPU cores and adjusts the
	  scheduler's CPU selection logic accordingly, so that higher
	  overall system performance can be achieved.

	  This feature will have no effect on CPUs without this feature.

	  If unsure say Y here.

source "kernel/Kconfig.preempt"

config CONFIG_UP_LATE_INIT
       def_bool y
       depends on !CONFIG_SMP && CONFIG_X86_LOCAL_APIC

config CONFIG_X86_UP_APIC
	bool "Local APIC support on uniprocessors" if !CONFIG_PCI_MSI
	default CONFIG_PCI_MSI
	depends on CONFIG_X86_32 && !CONFIG_SMP && !CONFIG_X86_32_NON_STANDARD
	---help---
	  CONFIG_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 CONFIG_X86_UP_IOAPIC
	bool "IO-APIC support on uniprocessors"
	depends on CONFIG_X86_UP_APIC
	---help---
	  An IO-APIC (I/O Advanced Programmable Interrupt Controller) is an
	  CONFIG_SMP-capable replacement for PC-style interrupt controllers. Most
	  CONFIG_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 CONFIG_X86_LOCAL_APIC
	def_bool y
	depends on CONFIG_X86_64 || CONFIG_SMP || CONFIG_X86_32_NON_STANDARD || CONFIG_X86_UP_APIC || CONFIG_PCI_MSI
	select CONFIG_IRQ_DOMAIN_HIERARCHY
	select CONFIG_PCI_MSI_IRQ_DOMAIN if CONFIG_PCI_MSI

config CONFIG_X86_IO_APIC
	def_bool y
	depends on CONFIG_X86_LOCAL_APIC || CONFIG_X86_UP_IOAPIC

config CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS
	bool "Reroute for broken boot IRQs"
	depends on CONFIG_X86_IO_APIC
	---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
	  superfluous "boot interrupts" cannot be disabled.

	  Some chipsets generate a legacy INTx "boot IRQ" when the IRQ
	  entry in the chipset's IO-APIC is masked (as, e.g. the RT
	  kernel does during interrupt handling). On chipsets where this
	  boot IRQ generation cannot be disabled, this workaround keeps
	  the original IRQ line masked so that only the equivalent "boot
	  IRQ" is delivered to the CPUs. The workaround also tells the
	  kernel to set up the IRQ handler on the boot IRQ line. In this
	  way only one interrupt is delivered to the kernel. Otherwise
	  the spurious second interrupt may cause the kernel to bring
	  down (vital) interrupt lines.

	  Only affects "broken" chipsets. Interrupt sharing may be
	  increased on these systems.

config CONFIG_X86_MCE
	bool "Machine Check / overheating reporting"
	select CONFIG_GENERIC_ALLOCATOR
	default y
	---help---
	  Machine Check support allows the processor to notify the
	  kernel if it detects a problem (e.g. overheating, data corruption).
	  The action the kernel takes depends on the severity of the problem,
	  ranging from warning messages to halting the machine.

config CONFIG_X86_MCE_INTEL
	def_bool y
	prompt "Intel MCE features"
	depends on CONFIG_X86_MCE && CONFIG_X86_LOCAL_APIC
	---help---
	   Additional support for intel specific MCE features such as
	   the thermal monitor.

config CONFIG_X86_MCE_AMD
	def_bool y
	prompt "AMD MCE features"
	depends on CONFIG_X86_MCE && CONFIG_X86_LOCAL_APIC && CONFIG_AMD_NB
	---help---
	   Additional support for AMD specific MCE features such as
	   the DRAM Error Threshold.

config CONFIG_X86_ANCIENT_MCE
	bool "Support for old Pentium 5 / WinChip machine checks"
	depends on CONFIG_X86_32 && CONFIG_X86_MCE
	---help---
	  Include support for machine check handling on old Pentium 5 or WinChip
	  systems. These typically need to be enabled explicitly on the command
	  line.

config CONFIG_X86_MCE_THRESHOLD
	depends on CONFIG_X86_MCE_AMD || CONFIG_X86_MCE_INTEL
	def_bool y

config CONFIG_X86_MCE_INJECT
	depends on CONFIG_X86_MCE
	tristate "Machine check injector support"
	---help---
	  Provide support for injecting machine checks for testing purposes.
	  If you don't know what a machine check is and you don't do kernel
	  QA it is safe to say n.

config CONFIG_X86_THERMAL_VECTOR
	def_bool y
	depends on CONFIG_X86_MCE_INTEL

source "arch/x86/events/Kconfig"

config CONFIG_X86_LEGACY_VM86
	bool "Legacy VM86 support"
	default n
	depends on CONFIG_X86_32
	---help---
	  This option allows user programs to put the CPU into V8086
	  mode, which is an 80286-era approximation of 16-bit real mode.

	  Some very old versions of X and/or vbetool require this option
	  for user mode setting.  Similarly, DOSEMU will use it if
	  available to accelerate real mode DOS programs.  However, any
	  recent version of DOSEMU, X, or vbetool should be fully
	  functional even without kernel CONFIG_VM86 support, as they will all
	  fall back to software emulation. Nevertheless, if you are using
	  a 16-bit DOS program where 16-bit performance matters, vm86
	  mode might be faster than emulation and you might want to
	  enable this option.

	  Note that any app that works on a 64-bit kernel is unlikely to
	  need this option, as 64-bit kernels don't, and can't, support
	  V8086 mode. This option is also unrelated to 16-bit protected
	  mode and is not needed to run most 16-bit programs under Wine.

	  Enabling this option increases the complexity of the kernel
	  and slows down exception handling a tiny bit.

	  If unsure, say N here.

config CONFIG_VM86
       bool
       default CONFIG_X86_LEGACY_VM86

config CONFIG_X86_16BIT
	bool "Enable support for 16-bit segments" if CONFIG_EXPERT
	default y
	depends on CONFIG_MODIFY_LDT_SYSCALL
	---help---
	  This option is required by programs like Wine to run 16-bit
	  protected mode legacy code on x86 processors.  Disabling
	  this option saves about 300 bytes on i386, or around 6K text
	  plus 16K runtime memory on x86-64,

config CONFIG_X86_ESPFIX32
	def_bool y
	depends on CONFIG_X86_16BIT && CONFIG_X86_32

config CONFIG_X86_ESPFIX64
	def_bool y
	depends on CONFIG_X86_16BIT && CONFIG_X86_64

config CONFIG_X86_VSYSCALL_EMULATION
       bool "Enable vsyscall emulation" if CONFIG_EXPERT
       default y
       depends on CONFIG_X86_64
       ---help---
	 This enables emulation of the legacy vsyscall page.  Disabling
	 it is roughly equivalent to booting with vsyscall=none, except
	 that it will also disable the helpful warning if a program
	 tries to use a vsyscall.  With this option set to N, offending
	 programs will just segfault, citing addresses of the form
	 0xffffffffff600?00.

	 This option is required by many programs built before 2013, and
	 care should be used even with newer programs if set to N.

	 Disabling this option saves about 7K of kernel size and
	 possibly 4K of additional runtime pagetable memory.

config CONFIG_TOSHIBA
	tristate "Toshiba Laptop support"
	depends on CONFIG_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 CONFIG_I8K
	tristate "Dell i8k legacy laptop support"
	select CONFIG_HWMON
	select CONFIG_SENSORS_DELL_SMM
	---help---
	  This option enables legacy /proc/i8k userspace interface in hwmon
	  dell-smm-hwmon driver. Character file /proc/i8k reports bios version,
	  temperature and allows controlling fan speeds of Dell laptops via
	  System Management Mode. For old Dell laptops (like Dell Inspiron 8000)
	  it reports also power and hotkey status. For fan speed control is
	  needed userspace package i8kutils.

	  Say Y if you intend to run this kernel on old Dell laptops or want to
	  use userspace package i8kutils.
	  Say N otherwise.

config CONFIG_X86_REBOOTFIXUPS
	bool "Enable X86 board specific fixups for reboot"
	depends on CONFIG_X86_32
	---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 CONFIG_CS5536 chipsets and the RDC R-321x SoC.

	  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 CONFIG_MICROCODE
	bool "CPU microcode loading support"
	default y
	depends on CONFIG_CPU_SUP_AMD || CONFIG_CPU_SUP_INTEL
	select CONFIG_FW_LOADER
	---help---
	  If you say Y here, you will be able to update the microcode on
	  Intel and AMD processors. The Intel support is for the IA32 family,
	  e.g. Pentium Pro, Pentium II, Pentium III, Pentium 4, Xeon etc. The
	  AMD support is for families 0x10 and later. You will obviously need
	  the actual microcode binary data itself which is not shipped with
	  the Linux kernel.

	  The preferred method to load microcode from a detached initrd is described
	  in Documentation/x86/early-microcode.txt. For that you need to enable
	  CONFIG_BLK_DEV_INITRD in order for the loader to be able to scan the
	  initrd for microcode blobs.

	  In addition, you can build-in the microcode into the kernel. For that you
	  need to enable CONFIG_FIRMWARE_IN_KERNEL and add the vendor-supplied microcode
	  to the CONFIG_EXTRA_FIRMWARE config option.

config CONFIG_MICROCODE_INTEL
	bool "Intel microcode loading support"
	depends on CONFIG_MICROCODE
	default CONFIG_MICROCODE
	select CONFIG_FW_LOADER
	---help---
	  This options enables microcode patch loading support for Intel
	  processors.

	  For the current Intel microcode data package go to
	  <https://downloadcenter.intel.com> and search for
	  'Linux Processor Microcode Data File'.

config CONFIG_MICROCODE_AMD
	bool "AMD microcode loading support"
	depends on CONFIG_MICROCODE
	select CONFIG_FW_LOADER
	---help---
	  If you select this option, microcode patch loading support for AMD
	  processors will be enabled.

config CONFIG_MICROCODE_OLD_INTERFACE
	def_bool y
	depends on CONFIG_MICROCODE

config 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 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 CONFIG_HIGHMEM4G
	depends on CONFIG_X86_32

config 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 CONFIG_HIGHMEM4G
	bool "4GB"
	---help---
	  Select this if you have a 32-bit processor and between 1 and 4
	  gigabytes of physical RAM.

config CONFIG_HIGHMEM64G
	bool "64GB"
	depends on !CONFIG_M486
	select CONFIG_X86_PAE
	---help---
	  Select this if you have a 32-bit processor and more than 4
	  gigabytes of physical RAM.

endchoice

choice
	prompt "Memory split" if CONFIG_EXPERT
	default CONFIG_VMSPLIT_3G
	depends on CONFIG_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 CONFIG_VMSPLIT_3G
		bool "3G/1G user/kernel split"
	config CONFIG_VMSPLIT_3G_OPT
		depends on !CONFIG_X86_PAE
		bool "3G/1G user/kernel split (for full 1G low memory)"
	config CONFIG_VMSPLIT_2G
		bool "2G/2G user/kernel split"
	config CONFIG_VMSPLIT_2G_OPT
		depends on !CONFIG_X86_PAE
		bool "2G/2G user/kernel split (for full 2G low memory)"
	config CONFIG_VMSPLIT_1G
		bool "1G/3G user/kernel split"
endchoice

config CONFIG_PAGE_OFFSET
	hex
	default 0xB0000000 if CONFIG_VMSPLIT_3G_OPT
	default 0x80000000 if CONFIG_VMSPLIT_2G
	default 0x78000000 if CONFIG_VMSPLIT_2G_OPT
	default 0x40000000 if CONFIG_VMSPLIT_1G
	default 0xC0000000
	depends on CONFIG_X86_32

config CONFIG_HIGHMEM
	def_bool y
	depends on CONFIG_X86_32 && (CONFIG_HIGHMEM64G || CONFIG_HIGHMEM4G)

config CONFIG_X86_PAE
	bool "PAE (Physical Address Extension) Support"
	depends on CONFIG_X86_32 && !CONFIG_HIGHMEM4G
	select CONFIG_SWIOTLB
	---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.

config CONFIG_ARCH_PHYS_ADDR_T_64BIT
	def_bool y
	depends on CONFIG_X86_64 || CONFIG_X86_PAE

config CONFIG_ARCH_DMA_ADDR_T_64BIT
	def_bool y
	depends on CONFIG_X86_64 || CONFIG_HIGHMEM64G

config CONFIG_X86_DIRECT_GBPAGES
	def_bool y
	depends on CONFIG_X86_64 && !CONFIG_DEBUG_PAGEALLOC && !CONFIG_KMEMCHECK
	---help---
	  Certain kernel features effectively disable kernel
	  linear 1 GB mappings (even if the CPU otherwise
	  supports them), so don't confuse the user by printing
	  that we have them enabled.

# Common CONFIG_NUMA Features
config CONFIG_NUMA
	bool "Numa Memory Allocation and Scheduler Support"
	depends on CONFIG_SMP
	depends on CONFIG_X86_64 || (CONFIG_X86_32 && CONFIG_HIGHMEM64G && CONFIG_X86_BIGSMP)
	default y if CONFIG_X86_BIGSMP
	---help---
	  Enable CONFIG_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
	  CONFIG_NUMA awareness to the kernel.

	  For 64-bit this is recommended if the system is Intel Core i7
	  (or later), AMD Opteron, or EM64T CONFIG_NUMA.

	  For 32-bit this is only needed if you boot a 32-bit
	  kernel on a 64-bit CONFIG_NUMA platform.

	  Otherwise, you should say N.

config CONFIG_AMD_NUMA
	def_bool y
	prompt "Old style AMD Opteron NUMA detection"
	depends on CONFIG_X86_64 && CONFIG_NUMA && CONFIG_PCI
	---help---
	  Enable AMD CONFIG_NUMA node topology detection.  You should say Y here if
	  you have a multi processor AMD system. This uses an old method to
	  read the CONFIG_NUMA configuration directly from the builtin Northbridge
	  of Opteron. It is recommended to use CONFIG_X86_64_ACPI_NUMA instead,
	  which also takes priority if both are compiled in.

config CONFIG_X86_64_ACPI_NUMA
	def_bool y
	prompt "ACPI NUMA detection"
	depends on CONFIG_X86_64 && CONFIG_NUMA && CONFIG_ACPI && CONFIG_PCI
	select CONFIG_ACPI_NUMA
	---help---
	  Enable CONFIG_ACPI SRAT based node topology detection.

# Some CONFIG_NUMA nodes have memory ranges that span
# other nodes.  Even though a pfn is valid and
# between a node's start and end pfns, it may not
# reside on that node.  See memmap_init_zone()
# for details.
config CONFIG_NODES_SPAN_OTHER_NODES
	def_bool y
	depends on CONFIG_X86_64_ACPI_NUMA

config CONFIG_NUMA_EMU
	bool "NUMA emulation"
	depends on CONFIG_NUMA
	---help---
	  Enable CONFIG_NUMA emulation. CONFIG_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 CONFIG_NODES_SHIFT
	int "Maximum NUMA Nodes (as a power of 2)" if !CONFIG_MAXSMP
	range 1 10
	default "10" if CONFIG_MAXSMP
	default "6" if CONFIG_X86_64
	default "3"
	depends on CONFIG_NEED_MULTIPLE_NODES
	---help---
	  Specify the maximum number of CONFIG_NUMA Nodes available on the target
	  system.  Increases memory reserved to accommodate various tables.

config CONFIG_ARCH_HAVE_MEMORY_PRESENT
	def_bool y
	depends on CONFIG_X86_32 && CONFIG_DISCONTIGMEM

config CONFIG_NEED_NODE_MEMMAP_SIZE
	def_bool y
	depends on CONFIG_X86_32 && (CONFIG_DISCONTIGMEM || CONFIG_SPARSEMEM)

config CONFIG_ARCH_FLATMEM_ENABLE
	def_bool y
	depends on CONFIG_X86_32 && !CONFIG_NUMA

config CONFIG_ARCH_DISCONTIGMEM_ENABLE
	def_bool y
	depends on CONFIG_NUMA && CONFIG_X86_32

config CONFIG_ARCH_DISCONTIGMEM_DEFAULT
	def_bool y
	depends on CONFIG_NUMA && CONFIG_X86_32

config CONFIG_ARCH_SPARSEMEM_ENABLE
	def_bool y
	depends on CONFIG_X86_64 || CONFIG_NUMA || CONFIG_X86_32 || CONFIG_X86_32_NON_STANDARD
	select CONFIG_SPARSEMEM_STATIC if CONFIG_X86_32
	select CONFIG_SPARSEMEM_VMEMMAP_ENABLE if CONFIG_X86_64

config CONFIG_ARCH_SPARSEMEM_DEFAULT
	def_bool y
	depends on CONFIG_X86_64

config CONFIG_ARCH_SELECT_MEMORY_MODEL
	def_bool y
	depends on CONFIG_ARCH_SPARSEMEM_ENABLE

config CONFIG_ARCH_MEMORY_PROBE
	bool "Enable sysfs memory/probe interface"
	depends on CONFIG_X86_64 && CONFIG_MEMORY_HOTPLUG
	help
	  This option enables a sysfs memory/probe interface for testing.
	  See Documentation/memory-hotplug.txt for more information.
	  If you are unsure how to answer this question, answer N.

config CONFIG_ARCH_PROC_KCORE_TEXT
	def_bool y
	depends on CONFIG_X86_64 && CONFIG_PROC_KCORE

config CONFIG_ILLEGAL_POINTER_VALUE
       hex
       default 0 if CONFIG_X86_32
       default 0xdead000000000000 if CONFIG_X86_64

source "mm/Kconfig"

config CONFIG_X86_PMEM_LEGACY_DEVICE
	bool

config CONFIG_X86_PMEM_LEGACY
	tristate "Support non-standard NVDIMMs and ADR protected memory"
	depends on CONFIG_PHYS_ADDR_T_64BIT
	depends on CONFIG_BLK_DEV
	select CONFIG_X86_PMEM_LEGACY_DEVICE
	select CONFIG_LIBNVDIMM
	help
	  Treat memory marked using the non-standard e820 type of 12 as used
	  by the Intel Sandy Bridge-EP reference BIOS as protected memory.
	  The kernel will offer these regions to the 'pmem' driver so
	  they can be used for persistent storage.

	  Say Y if unsure.

config CONFIG_HIGHPTE
	bool "Allocate 3rd-level pagetables from highmem"
	depends on CONFIG_HIGHMEM
	---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 CONFIG_X86_CHECK_BIOS_CORRUPTION
	bool "Check for low memory corruption"
	---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
	  setting "memory_corruption_check=1" on the kernel command
	  line.  By default it scans the low 64k of memory every 60
	  seconds; see the memory_corruption_check_size and
	  memory_corruption_check_period parameters in
	  Documentation/admin-guide/kernel-parameters.rst to adjust this.

	  When enabled with the default parameters, this option has
	  almost no overhead, as it reserves a relatively small amount
	  of memory and scans it infrequently.  It both detects corruption
	  and prevents it from affecting the running system.

	  It is, however, intended as a diagnostic tool; if repeatable
	  BIOS-originated corruption always affects the same memory,
	  you can use memmap= to prevent the kernel from using that
	  memory.

config CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK
	bool "Set the default setting of memory_corruption_check"
	depends on CONFIG_X86_CHECK_BIOS_CORRUPTION
	default y
	---help---
	  Set whether the default state of memory_corruption_check is
	  on or off.

config CONFIG_X86_RESERVE_LOW
	int "Amount of low memory, in kilobytes, to reserve for the BIOS"
	default 64
	range 4 640
	---help---
	  Specify the amount of low memory to reserve for the BIOS.

	  The first page contains BIOS data structures that the kernel
	  must not use, so that page must always be reserved.

	  By default we reserve the first 64K of physical RAM, as a
	  number of BIOSes are known to corrupt that memory range
	  during events such as suspend/resume or monitor cable
	  insertion, so it must not be used by the kernel.

	  You can set this to 4 if you are absolutely sure that you
	  trust the BIOS to get all its memory reservations and usages
	  right.  If you know your BIOS have problems beyond the
	  default 64K area, you can set this to 640 to avoid using the
	  entire low memory range.

	  If you have doubts about the BIOS (e.g. suspend/resume does
	  not work or there's kernel crashes after certain hardware
	  hotplug events) then you might want to enable
	  CONFIG_X86_CHECK_BIOS_CORRUPTION=y to allow the kernel to check
	  typical corruption patterns.

	  Leave this to the default value of 64 if you are unsure.

config CONFIG_MATH_EMULATION
	bool
	depends on CONFIG_MODIFY_LDT_SYSCALL
	prompt "Math emulation" if CONFIG_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 CONFIG_MTRR
	def_bool y
	prompt "MTRR (Memory Type Range Register) support" if CONFIG_EXPERT
	---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 CONFIG_PCI or CONFIG_AGP bus. Enabling write-combining
	  allows bus write transfers to be combined into a larger transfer
	  before bursting over the CONFIG_PCI/CONFIG_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 CONFIG_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 CONFIG_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/x86/mtrr.txt> for more information.

config CONFIG_MTRR_SANITIZER
	def_bool y
	prompt "MTRR cleanup support"
	depends on CONFIG_MTRR
	---help---
	  Convert CONFIG_MTRR layout from continuous to discrete, so X drivers can
	  add writeback entries.

	  Can be disabled with disable_mtrr_cleanup on the kernel command line.
	  The largest mtrr entry size for a continuous block can be set with
	  mtrr_chunk_size.

	  If unsure, say Y.

config CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT
	int "MTRR cleanup enable value (0-1)"
	range 0 1
	default "0"
	depends on CONFIG_MTRR_SANITIZER
	---help---
	  Enable mtrr cleanup default value

config CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT
	int "MTRR cleanup spare reg num (0-7)"
	range 0 7
	default "1"
	depends on CONFIG_MTRR_SANITIZER
	---help---
	  mtrr cleanup spare entries default, it can be changed via
	  mtrr_spare_reg_nr=N on the kernel command line.

config CONFIG_X86_PAT
	def_bool y
	prompt "x86 PAT support" if CONFIG_EXPERT
	depends on CONFIG_MTRR
	---help---
	  Use PAT attributes to setup page level cache control.

	  PATs are the modern equivalents of MTRRs and are much more
	  flexible than MTRRs.

	  Say N here if you see bootup problems (boot crash, boot hang,
	  spontaneous reboots) or a non-working video driver.

	  If unsure, say Y.

config CONFIG_ARCH_USES_PG_UNCACHED
	def_bool y
	depends on CONFIG_X86_PAT

config CONFIG_ARCH_RANDOM
	def_bool y
	prompt "x86 architectural random number generator" if CONFIG_EXPERT
	---help---
	  Enable the x86 architectural RDRAND instruction
	  (Intel Bull Mountain technology) to generate random numbers.
	  If supported, this is a high bandwidth, cryptographically
	  secure hardware random number generator.

config CONFIG_X86_SMAP
	def_bool y
	prompt "Supervisor Mode Access Prevention" if CONFIG_EXPERT
	---help---
	  Supervisor Mode Access Prevention (SMAP) is a security
	  feature in newer Intel processors.  There is a small
	  performance cost if this enabled and turned on; there is
	  also a small increase in the kernel size if this is enabled.

	  If unsure, say Y.

config CONFIG_X86_INTEL_MPX
	prompt "Intel MPX (Memory Protection Extensions)"
	def_bool n
	depends on CONFIG_CPU_SUP_INTEL
	---help---
	  MPX provides hardware features that can be used in
	  conjunction with compiler-instrumented code to check
	  memory references.  It is designed to detect buffer
	  overflow or underflow bugs.

	  This option enables running applications which are
	  instrumented or otherwise use MPX.  It does not use MPX
	  itself inside the kernel or to protect the kernel
	  against bad memory references.

	  Enabling this option will make the kernel larger:
	  ~8k of kernel text and 36 bytes of data on a 64-bit
	  defconfig.  It adds a long to the 'mm_struct' which
	  will increase the kernel memory overhead of each
	  process and adds some branches to paths used during
	  exec() and munmap().

	  For details, see Documentation/x86/intel_mpx.txt

	  If unsure, say N.

config CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
	prompt "Intel Memory Protection Keys"
	def_bool y
	# Note: only available in 64-bit mode
	depends on CONFIG_CPU_SUP_INTEL && CONFIG_X86_64
	select CONFIG_ARCH_USES_HIGH_VMA_FLAGS
	select CONFIG_ARCH_HAS_PKEYS
	---help---
	  Memory Protection Keys provides a mechanism for enforcing
	  page-based protections, but without requiring modification of the
	  page tables when an application changes protection domains.

	  For details, see Documentation/x86/protection-keys.txt

	  If unsure, say y.

config CONFIG_EFI
	bool "EFI runtime service support"
	depends on CONFIG_ACPI
	select CONFIG_UCS2_STRING
	select CONFIG_EFI_RUNTIME_WRAPPERS
	---help---
	  This enables the kernel to use CONFIG_EFI runtime services that are
	  available (such as the CONFIG_EFI variable services).

	  This option is only useful on systems that have CONFIG_EFI firmware.
	  In addition, you should use the latest ELILO loader available
	  at <http://elilo.sourceforge.net> in order to take advantage
	  of CONFIG_EFI runtime services. However, even with this option, the
	  resultant kernel should continue to boot on existing non-CONFIG_EFI
	  platforms.

config CONFIG_EFI_STUB
       bool "EFI stub support"
       depends on CONFIG_EFI && !CONFIG_X86_USE_3DNOW
       select CONFIG_RELOCATABLE
       ---help---
          This kernel feature allows a bzImage to be loaded directly
	  by CONFIG_EFI firmware without the use of a bootloader.

	  See Documentation/efi-stub.txt for more information.

config CONFIG_EFI_MIXED
	bool "EFI mixed-mode support"
	depends on CONFIG_EFI_STUB && CONFIG_X86_64
	---help---
	   Enabling this feature allows a 64-bit kernel to be booted
	   on a 32-bit firmware, provided that your CPU supports 64-bit
	   mode.

	   Note that it is not possible to boot a mixed-mode enabled
	   kernel via the CONFIG_EFI boot stub - a bootloader that supports
	   the CONFIG_EFI handover protocol must be used.

	   If unsure, say N.

config CONFIG_SECCOMP
	def_bool y
	prompt "Enable seccomp to safely compute untrusted bytecode"
	---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 prctl(PR_SET_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.

source kernel/Kconfig.hz

config CONFIG_KEXEC
	bool "kexec system call"
	select CONFIG_KEXEC_CORE
	---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.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.

config CONFIG_KEXEC_FILE
	bool "kexec file based system call"
	select CONFIG_KEXEC_CORE
	select CONFIG_BUILD_BIN2C
	depends on CONFIG_X86_64
	depends on CONFIG_CRYPTO=y
	depends on CONFIG_CRYPTO_SHA256=y
	---help---
	  This is new version of kexec system call. This system call is
	  file based and takes file descriptors as system call argument
	  for kernel and initramfs as opposed to list of segments as
	  accepted by previous system call.

config CONFIG_KEXEC_VERIFY_SIG
	bool "Verify kernel signature during kexec_file_load() syscall"
	depends on CONFIG_KEXEC_FILE
	---help---
	  This option makes kernel signature verification mandatory for
	  the kexec_file_load() syscall.

	  In addition to that option, you need to enable signature
	  verification for the corresponding kernel image type being
	  loaded in order for this to work.

config CONFIG_KEXEC_BZIMAGE_VERIFY_SIG
	bool "Enable bzImage signature verification support"
	depends on CONFIG_KEXEC_VERIFY_SIG
	depends on CONFIG_SIGNED_PE_FILE_VERIFICATION
	select CONFIG_SYSTEM_TRUSTED_KEYRING
	---help---
	  Enable bzImage signature verification support.

config CONFIG_CRASH_DUMP
	bool "kernel crash dumps"
	depends on CONFIG_X86_64 || (CONFIG_X86_32 && CONFIG_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
	  CONFIG_PHYSICAL_START, or it must be built as a relocatable image
	  (CONFIG_RELOCATABLE=y).
	  For more details see Documentation/kdump/kdump.txt

config CONFIG_KEXEC_JUMP
	bool "kexec jump"
	depends on CONFIG_KEXEC && CONFIG_HIBERNATION
	---help---
	  Jump between original kernel and kexeced kernel and invoke
	  code in physical address mode via CONFIG_KEXEC

config CONFIG_PHYSICAL_START
	hex "Physical address where the kernel is loaded" if (CONFIG_EXPERT || CONFIG_CRASH_DUMP)
	default "0x1000000"
	---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 0x1000000 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.  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. 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 CONFIG_RELOCATABLE
	bool "Build a relocatable kernel"
	default y
	---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 used as the minimum location.

config CONFIG_RANDOMIZE_BASE
	bool "Randomize the address of the kernel image (KASLR)"
	depends on CONFIG_RELOCATABLE
	default n
	---help---
	  In support of Kernel Address Space Layout Randomization (KASLR),
	  this randomizes the physical address at which the kernel image
	  is decompressed and the virtual address where the kernel
	  image is mapped, as a security feature that deters exploit
	  attempts relying on knowledge of the location of kernel
	  code internals.

	  On 64-bit, the kernel physical and virtual addresses are
	  randomized separately. The physical address will be anywhere
	  between 16MB and the top of physical memory (up to 64TB). The
	  virtual address will be randomized from 16MB up to 1GB (9 bits
	  of entropy). Note that this also reduces the memory space
	  available to kernel modules from 1.5GB to 1GB.

	  On 32-bit, the kernel physical and virtual addresses are
	  randomized together. They will be randomized from 16MB up to
	  512MB (8 bits of entropy).

	  Entropy is generated using the RDRAND instruction if it is
	  supported. If RDTSC is supported, its value is mixed into
	  the entropy pool as well. If neither RDRAND nor RDTSC are
	  supported, then entropy is read from the i8254 timer. The
	  usable entropy is limited by the kernel being built using
	  2GB addressing, and that CONFIG_PHYSICAL_ALIGN must be at a
	  minimum of 2MB. As a result, only 10 bits of entropy are
	  theoretically possible, but the implementations are further
	  limited due to memory layouts.

	  If CONFIG_HIBERNATE is also enabled, KASLR is disabled at boot
	  time. To enable it, boot with "kaslr" on the kernel command
	  line (which will also disable hibernation).

	  If unsure, say N.

# Relocation on x86 needs some additional build support
config CONFIG_X86_NEED_RELOCS
	def_bool y
	depends on CONFIG_RANDOMIZE_BASE || (CONFIG_X86_32 && CONFIG_RELOCATABLE)

config CONFIG_PHYSICAL_ALIGN
	hex "Alignment value to which kernel should be aligned"
	default "0x200000"
	range 0x2000 0x1000000 if CONFIG_X86_32
	range 0x200000 0x1000000 if CONFIG_X86_64
	---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.

	  On 32-bit this value must be a multiple of 0x2000. On 64-bit
	  this value must be a multiple of 0x200000.

	  Don't change this unless you know what you are doing.

config CONFIG_RANDOMIZE_MEMORY
	bool "Randomize the kernel memory sections"
	depends on CONFIG_X86_64
	depends on CONFIG_RANDOMIZE_BASE
	default CONFIG_RANDOMIZE_BASE
	---help---
	   Randomizes the base virtual address of kernel memory sections
	   (physical memory mapping, vmalloc & vmemmap). This security feature
	   makes exploits relying on predictable memory locations less reliable.

	   The order of allocations remains unchanged. Entropy is generated in
	   the same way as CONFIG_RANDOMIZE_BASE. Current implementation in the optimal
	   configuration have in average 30,000 different possible virtual
	   addresses for each memory section.

	   If unsure, say N.

config CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING
	hex "Physical memory mapping padding" if CONFIG_EXPERT
	depends on CONFIG_RANDOMIZE_MEMORY
	default "0xa" if CONFIG_MEMORY_HOTPLUG
	default "0x0"
	range 0x1 0x40 if CONFIG_MEMORY_HOTPLUG
	range 0x0 0x40
	---help---
	   Define the padding in terabytes added to the existing physical
	   memory size during kernel memory randomization. It is useful
	   for memory hotplug support but reduces the entropy available for
	   address randomization.

	   If unsure, leave at the default value.

config CONFIG_HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs"
	depends on CONFIG_SMP
	---help---
	  Say Y here to allow turning CPUs off and on. CPUs can be
	  controlled through /sys/devices/system/cpu.
	  ( Note: power management support will enable this option
	    automatically on CONFIG_SMP systems. )
	  Say N if you want to disable CPU hotplug.

config CONFIG_BOOTPARAM_HOTPLUG_CPU0
	bool "Set default setting of cpu0_hotpluggable"
	default n
	depends on CONFIG_HOTPLUG_CPU
	---help---
	  Set whether default state of cpu0_hotpluggable is on or off.

	  Say Y here to enable CPU0 hotplug by default. If this switch
	  is turned on, there is no need to give cpu0_hotplug kernel
	  parameter and the CPU0 hotplug feature is enabled by default.

	  Please note: there are two known CPU0 dependencies if you want
	  to enable the CPU0 hotplug feature either by this switch or by
	  cpu0_hotplug kernel parameter.

	  First, resume from hibernate or suspend always starts from CPU0.
	  So hibernate and suspend are prevented if CPU0 is offline.

	  Second dependency is PIC interrupts always go to CPU0. CPU0 can not
	  offline if any interrupt can not migrate out of CPU0. There may
	  be other CPU0 dependencies.

	  Please make sure the dependencies are under your control before
	  you enable this feature.

	  Say N if you don't want to enable CPU0 hotplug feature by default.
	  You still can enable the CPU0 hotplug feature at boot by kernel
	  parameter cpu0_hotplug.

config CONFIG_DEBUG_HOTPLUG_CPU0
	def_bool n
	prompt "Debug CPU0 hotplug"
	depends on CONFIG_HOTPLUG_CPU
	---help---
	  Enabling this option offlines CPU0 (if CPU0 can be offlined) as
	  soon as possible and boots up userspace with CPU0 offlined. User
	  can online CPU0 back after boot time.

	  To debug CPU0 hotplug, you need to enable CPU0 offline/online
	  feature by either turning on CONFIG_BOOTPARAM_HOTPLUG_CPU0 during
	  compilation or giving cpu0_hotplug kernel parameter at boot.

	  If unsure, say N.

config CONFIG_COMPAT_VDSO
	def_bool n
	prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"
	depends on CONFIG_COMPAT_32
	---help---
	  Certain buggy versions of glibc will crash if they are
	  presented with a 32-bit vDSO that is not mapped at the address
	  indicated in its segment table.

	  The bug was introduced by f866314b89d56845f55e6f365e18b31ec978ec3a
	  and fixed by 3b3ddb4f7db98ec9e912ccdf54d35df4aa30e04a and
	  49ad572a70b8aeb91e57483a11dd1b77e31c4468.  Glibc 2.3.3 is
	  the only released version with the bug, but OpenSUSE 9
	  contains a buggy "glibc 2.3.2".

	  The symptom of the bug is that everything crashes on startup, saying:
	  dl_main: Assertion `(void *) ph->p_vaddr == _rtld_local._dl_sysinfo_dso' failed!

	  Saying Y here changes the default value of the vdso32 boot
	  option from 1 to 0, which turns off the 32-bit vDSO entirely.
	  This works around the glibc bug but hurts performance.

	  If unsure, say N: if you are compiling your own kernel, you
	  are unlikely to be using a buggy version of glibc.

choice
	prompt "vsyscall table for legacy applications"
	depends on CONFIG_X86_64
	default CONFIG_LEGACY_VSYSCALL_EMULATE
	help
	  Legacy user code that does not know how to find the vDSO expects
	  to be able to issue three syscalls by calling fixed addresses in
	  kernel space. Since this location is not randomized with ASLR,
	  it can be used to assist security vulnerability exploitation.

	  This setting can be changed at boot time via the kernel command
	  line parameter vsyscall=[native|emulate|none].

	  On a system with recent enough glibc (2.14 or newer) and no
	  static binaries, you can say None without a performance penalty
	  to improve security.

	  If unsure, select "Emulate".

	config CONFIG_LEGACY_VSYSCALL_NATIVE
		bool "Native"
		help
		  Actual executable code is located in the fixed vsyscall
		  address mapping, implementing time() efficiently. Since
		  this makes the mapping executable, it can be used during
		  security vulnerability exploitation (traditionally as
		  ROP gadgets). This configuration is not recommended.

	config CONFIG_LEGACY_VSYSCALL_EMULATE
		bool "Emulate"
		help
		  The kernel traps and emulates calls into the fixed
		  vsyscall address mapping. This makes the mapping
		  non-executable, but it still contains known contents,
		  which could be used in certain rare security vulnerability
		  exploits. This configuration is recommended when userspace
		  still uses the vsyscall area.

	config CONFIG_LEGACY_VSYSCALL_NONE
		bool "None"
		help
		  There will be no vsyscall mapping at all. This will
		  eliminate any risk of ASLR bypass due to the vsyscall
		  fixed address mapping. Attempts to use the vsyscalls
		  will be reported to dmesg, so that either old or
		  malicious userspace programs can be identified.

endchoice

config CONFIG_CMDLINE_BOOL
	bool "Built-in kernel command line"
	---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
	  kernel boot arguments with the kernel itself (that is,
	  to not rely on the boot loader to provide them.)

	  To compile command line arguments into the kernel,
	  set this option to 'Y', then fill in the
	  boot arguments in CONFIG_CMDLINE.

	  Systems with fully functional boot loaders (i.e. non-embedded)
	  should leave this option set to 'N'.

config CONFIG_CMDLINE
	string "Built-in kernel command string"
	depends on CONFIG_CMDLINE_BOOL
	default ""
	---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
	  form the full kernel command line, when the system boots.

	  However, you can use the CONFIG_CMDLINE_OVERRIDE option to
	  change this behavior.

	  In most cases, the command line (whether built-in or provided
	  by the boot loader) should specify the device for the root
	  file system.

config CONFIG_CMDLINE_OVERRIDE
	bool "Built-in command line overrides boot loader arguments"
	depends on CONFIG_CMDLINE_BOOL
	---help---
	  Set this option to 'Y' to have the kernel ignore the boot loader
	  command line, and use ONLY the built-in command line.

	  This is used to work around broken boot loaders.  This should
	  be set to 'N' under normal conditions.

config CONFIG_MODIFY_LDT_SYSCALL
	bool "Enable the LDT (local descriptor table)" if CONFIG_EXPERT
	default y
	---help---
	  Linux can allow user programs to install a per-process x86
	  Local Descriptor Table (LDT) using the modify_ldt(2) system
	  call.  This is required to run 16-bit or segmented code such as
	  DOSEMU or some Wine programs.  It is also used by some very old
	  threading libraries.

	  Enabling this feature adds a small amount of overhead to
	  context switches and increases the low-level kernel attack
	  surface.  Disabling it removes the modify_ldt(2) system call.

	  Saying 'N' here may make sense for embedded or server kernels.

source "kernel/livepatch/Kconfig"

endmenu

config CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG
	def_bool y
	depends on CONFIG_X86_64 || (CONFIG_X86_32 && CONFIG_HIGHMEM)

config CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE
	def_bool y
	depends on CONFIG_MEMORY_HOTPLUG

config CONFIG_USE_PERCPU_NUMA_NODE_ID
	def_bool y
	depends on CONFIG_NUMA

config CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK
	def_bool y
	depends on CONFIG_X86_64 || CONFIG_X86_PAE

config CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
	def_bool y
	depends on CONFIG_X86_64 && CONFIG_HUGETLB_PAGE && CONFIG_MIGRATION

menu "Power management and ACPI options"

config CONFIG_ARCH_HIBERNATION_HEADER
	def_bool y
	depends on CONFIG_X86_64 && CONFIG_HIBERNATION

source "kernel/power/Kconfig"

source "drivers/acpi/Kconfig"

source "drivers/sfi/Kconfig"

config CONFIG_X86_APM_BOOT
	def_bool y
	depends on CONFIG_APM

menuconfig CONFIG_APM
	tristate "APM (Advanced Power Management) BIOS support"
	depends on CONFIG_X86_32 && CONFIG_PM_SLEEP
	---help---
	  CONFIG_APM is a BIOS specification for saving power using several different
	  techniques. This is mostly useful for battery powered laptops with
	  CONFIG_APM compliant BIOSes. If you say Y here, the system time will be
	  reset after a RESUME operation, the /proc/apm device will provide
	  battery status information, and user-space programs will receive
	  notification of CONFIG_APM "events" (e.g. battery status change).

	  If you select "Y" here, you can disable actual use of the CONFIG_APM
	  BIOS by passing the "apm=off" option to the kernel at boot time.

	  Note that the CONFIG_APM support is almost completely disabled for
	  machines with more than one CPU.

	  In order to use CONFIG_APM, you will need supporting software. For location
	  and more information, read <file:Documentation/power/apm-acpi.txt>
	  and the Battery Powered Linux mini-HOWTO, available from
	  <http://www.tldp.org/docs.html#howto>.

	  This driver does not spin down disk drives (see the hdparm(8)
	  manpage ("man 8 hdparm") for that), and it doesn't turn off
	  VESA-compliant "green" monitors.

	  This driver does not support the TI 4000M TravelMate and the ACER
	  486/DX4/75 because they don't have compliant BIOSes. Many "green"
	  desktop machines also don't have compliant BIOSes, and this driver
	  may cause those machines to panic during the boot phase.

	  Generally, if you don't have a battery in your machine, there isn't
	  much point in using this driver and you should say N. If you get
	  random kernel OOPSes or reboots that don't seem to be related to
	  anything, try disabling/enabling this option (or disabling/enabling
	  CONFIG_APM in your BIOS).

	  Some other things you should try when experiencing seemingly random,
	  "weird" problems:

	  1) make sure that you have enough swap space and that it is
	  enabled.
	  2) pass the "no-hlt" option to the kernel
	  3) switch on floating point emulation in the kernel and pass
	  the "no387" option to the kernel
	  4) pass the "floppy=nodma" option to the kernel
	  5) pass the "mem=4M" option to the kernel (thereby disabling
	  all but the first 4 MB of RAM)
	  6) make sure that the CPU is not over clocked.
	  7) read the sig11 FAQ at <http://www.bitwizard.nl/sig11/>
	  8) disable the cache from your BIOS settings
	  9) install a fan for the video card or exchange video RAM
	  10) install a better fan for the CPU
	  11) exchange RAM chips
	  12) exchange the motherboard.

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

if CONFIG_APM

config CONFIG_APM_IGNORE_USER_SUSPEND
	bool "Ignore USER SUSPEND"
	---help---
	  This option will ignore USER CONFIG_SUSPEND requests. On machines with a
	  compliant CONFIG_APM BIOS, you want to say N. However, on the NEC Versa CONFIG_M
	  series notebooks, it is necessary to say Y because of a BIOS bug.

config CONFIG_APM_DO_ENABLE
	bool "Enable PM at boot time"
	---help---
	  Enable CONFIG_APM features at boot time. From page 36 of the CONFIG_APM BIOS
	  specification: "When disabled, the APM BIOS does not automatically
	  power manage devices, enter the Standby State, enter the Suspend
	  State, or take power saving steps in response to CPU Idle calls."
	  This driver will make CPU Idle calls when Linux is idle (unless this
	  feature is turned off -- see "Do CPU IDLE calls", below). This
	  should always save battery power, but more complicated CONFIG_APM features
	  will be dependent on your BIOS implementation. You may need to turn
	  this option off if your computer hangs at boot time when using CONFIG_APM
	  support, or if it beeps continuously instead of suspending. Turn
	  this off if you have a NEC UltraLite Versa 33/CONFIG_C or a Toshiba
	  T400CDT. This is off by default since most machines do fine without
	  this feature.

config CONFIG_APM_CPU_IDLE
	depends on CONFIG_CPU_IDLE
	bool "Make CPU Idle calls when idle"
	---help---
	  Enable calls to CONFIG_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
	  are made after the idle loop has run for some length of time (e.g.,
	  333 mS). On some machines, this will cause a hang at boot time or
	  whenever the CPU becomes idle. (On machines with more than one CPU,
	  this option does nothing.)

config CONFIG_APM_DISPLAY_BLANK
	bool "Enable console blanking using APM"
	---help---
	  Enable console blanking using the CONFIG_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
	  the virtual console screen blanker, and won't turn off the backlight
	  when using the X Window system. This also doesn't have anything to
	  do with your VESA-compliant power-saving monitor. Further, this
	  option doesn't work for all laptops -- it might not turn off your
	  backlight at all, or it might print a lot of errors to the console,
	  especially if you are using gpm.

config CONFIG_APM_ALLOW_INTS
	bool "Allow interrupts during APM BIOS calls"
	---help---
	  Normally we disable external interrupts while we are making calls to
	  the CONFIG_APM BIOS as a measure to lessen the effects of a badly behaving
	  BIOS implementation.  The BIOS should reenable interrupts if it
	  needs to.  Unfortunately, some BIOSes do not -- especially those in
	  many of the newer IBM Thinkpads.  If you experience hangs when you
	  suspend, try setting this to Y.  Otherwise, say N.

endif # CONFIG_APM

source "drivers/cpufreq/Kconfig"

source "drivers/cpuidle/Kconfig"

source "drivers/idle/Kconfig"

endmenu


menu "Bus options (PCI etc.)"

config CONFIG_PCI
	bool "PCI support"
	default y
	---help---
	  Find out whether you have a CONFIG_PCI motherboard. CONFIG_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 CONFIG_ISA, CONFIG_EISA, MicroChannel (CONFIG_MCA) or
	  VESA. If you have CONFIG_PCI, say Y, otherwise N.

choice
	prompt "PCI access mode"
	depends on CONFIG_X86_32 && CONFIG_PCI
	default CONFIG_PCI_GOANY
	---help---
	  On CONFIG_PCI systems, the BIOS can be used to detect the CONFIG_PCI devices and
	  determine their configuration. However, some old CONFIG_PCI motherboards
	  have BIOS bugs and may crash if this is done. Also, some embedded
	  CONFIG_PCI-based systems don't have any BIOS at all. Linux can also try to
	  detect the CONFIG_PCI hardware directly without using the BIOS.

	  With this option, you can specify how Linux should detect the
	  CONFIG_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 CONFIG_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 CONFIG_PCI_GOBIOS
	bool "BIOS"

config CONFIG_PCI_GOMMCONFIG
	bool "MMConfig"

config CONFIG_PCI_GODIRECT
	bool "Direct"

config CONFIG_PCI_GOOLPC
	bool "OLPC XO-1"
	depends on CONFIG_OLPC

config CONFIG_PCI_GOANY
	bool "Any"

endchoice

config CONFIG_PCI_BIOS
	def_bool y
	depends on CONFIG_X86_32 && CONFIG_PCI && (CONFIG_PCI_GOBIOS || CONFIG_PCI_GOANY)

# x86-64 doesn't support CONFIG_PCI BIOS access from long mode so always go direct.
config CONFIG_PCI_DIRECT
	def_bool y
	depends on CONFIG_PCI && (CONFIG_X86_64 || (CONFIG_PCI_GODIRECT || CONFIG_PCI_GOANY || CONFIG_PCI_GOOLPC || CONFIG_PCI_GOMMCONFIG))

config CONFIG_PCI_MMCONFIG
	def_bool y
	depends on CONFIG_X86_32 && CONFIG_PCI && (CONFIG_ACPI || CONFIG_SFI) && (CONFIG_PCI_GOMMCONFIG || CONFIG_PCI_GOANY)

config CONFIG_PCI_OLPC
	def_bool y
	depends on CONFIG_PCI && CONFIG_OLPC && (CONFIG_PCI_GOOLPC || CONFIG_PCI_GOANY)

config CONFIG_PCI_XEN
	def_bool y
	depends on CONFIG_PCI && CONFIG_XEN
	select CONFIG_SWIOTLB_XEN

config CONFIG_PCI_DOMAINS
	def_bool y
	depends on CONFIG_PCI

config CONFIG_PCI_MMCONFIG
	bool "Support mmconfig PCI config space access"
	depends on CONFIG_X86_64 && CONFIG_PCI && CONFIG_ACPI

config CONFIG_PCI_CNB20LE_QUIRK
	bool "Read CNB20LE Host Bridge Windows" if CONFIG_EXPERT
	depends on CONFIG_PCI
	help
	  Read the CONFIG_PCI windows out of the CNB20LE host bridge. This allows
	  CONFIG_PCI hotplug to work on systems with the CNB20LE chipset which do
	  not have CONFIG_ACPI.

	  There's no public spec for this chipset, and this functionality
	  is known to be incomplete.

	  You should say N unless you know you need this.

source "drivers/pci/Kconfig"

config CONFIG_ISA_BUS
	bool "ISA-style bus support on modern systems" if CONFIG_EXPERT
	select CONFIG_ISA_BUS_API
	help
	  Enables CONFIG_ISA-style drivers on modern systems. This is necessary to
	  support PC/104 devices on CONFIG_X86_64 platforms.

	  If unsure, say N.

# x86_64 have no CONFIG_ISA slots, but can have CONFIG_ISA-style DMA.
config CONFIG_ISA_DMA_API
	bool "ISA-style DMA support" if (CONFIG_X86_64 && CONFIG_EXPERT)
	default y
	help
	  Enables CONFIG_ISA-style DMA support for devices requiring such controllers.
	  If unsure, say Y.

if CONFIG_X86_32

config CONFIG_ISA
	bool "ISA support"
	---help---
	  Find out whether you have CONFIG_ISA slots on your motherboard.  CONFIG_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 CONFIG_PCI, CONFIG_EISA, MicroChannel
	  (CONFIG_MCA) or VESA.  CONFIG_ISA is an older system, now being displaced by CONFIG_PCI;
	  newer boards don't support it.  If you have CONFIG_ISA, say Y, otherwise N.

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

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

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

	  Otherwise, say N.

source "drivers/eisa/Kconfig"

config CONFIG_SCx200
	tristate "NatSemi SCx200 support"
	---help---
	  This provides basic support for National Semiconductor's
	  (now AMD's) Geode processors.  The driver probes for the
	  CONFIG_PCI-IDs of several on-chip devices, so its a good dependency
	  for other scx200_* drivers.

	  If compiled as a module, the driver is named scx200.

config CONFIG_SCx200HR_TIMER
	tristate "NatSemi SCx200 27MHz High-Resolution Timer Support"
	depends on CONFIG_SCx200
	default y
	---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
	  processor goes idle (as is done by the scheduler).  The
	  other workaround is idle=poll boot option.

config CONFIG_OLPC
	bool "One Laptop Per Child support"
	depends on !CONFIG_X86_PAE
	select CONFIG_GPIOLIB
	select CONFIG_OF
	select CONFIG_OF_PROMTREE
	select CONFIG_IRQ_DOMAIN
	---help---
	  Add support for detecting the unique features of the CONFIG_OLPC
	  XO hardware.

config CONFIG_OLPC_XO1_PM
	bool "OLPC XO-1 Power Management"
	depends on CONFIG_OLPC && CONFIG_MFD_CS5535 && CONFIG_PM_SLEEP
	select CONFIG_MFD_CORE
	---help---
	  Add support for poweroff and suspend of the CONFIG_OLPC XO-1 laptop.

config CONFIG_OLPC_XO1_RTC
	bool "OLPC XO-1 Real Time Clock"
	depends on CONFIG_OLPC_XO1_PM && CONFIG_RTC_DRV_CMOS
	---help---
	  Add support for the XO-1 real time clock, which can be used as a
	  programmable wakeup source.

config CONFIG_OLPC_XO1_SCI
	bool "OLPC XO-1 SCI extras"
	depends on CONFIG_OLPC && CONFIG_OLPC_XO1_PM
	depends on CONFIG_INPUT=y
	select CONFIG_POWER_SUPPLY
	select CONFIG_GPIO_CS5535
	select CONFIG_MFD_CORE
	---help---
	  Add support for SCI-based features of the CONFIG_OLPC XO-1 laptop:
	   - EC-driven system wakeups
	   - Power button
	   - Ebook switch
	   - Lid switch
	   - AC adapter status updates
	   - Battery status updates

config CONFIG_OLPC_XO15_SCI
	bool "OLPC XO-1.5 SCI extras"
	depends on CONFIG_OLPC && CONFIG_ACPI
	select CONFIG_POWER_SUPPLY
	---help---
	  Add support for SCI-based features of the CONFIG_OLPC XO-1.5 laptop:
	   - EC-driven system wakeups
	   - AC adapter status updates
	   - Battery status updates

config CONFIG_ALIX
	bool "PCEngines ALIX System Support (LED setup)"
	select CONFIG_GPIOLIB
	---help---
	  This option enables system support for the PCEngines CONFIG_ALIX.
	  At present this just sets up LEDs for GPIO control on
	  ALIX2/3/6 boards.  However, other system specific setup should
	  get added here.

	  Note: You must still enable the drivers for GPIO and LED support
	  (CONFIG_GPIO_CS5535 & CONFIG_LEDS_GPIO) to actually use the LEDs

	  Note: You have to set alix.force=1 for boards with Award BIOS.

config CONFIG_NET5501
	bool "Soekris Engineering net5501 System Support (LEDS, GPIO, etc)"
	select CONFIG_GPIOLIB
	---help---
	  This option enables system support for the Soekris Engineering net5501.

config CONFIG_GEOS
	bool "Traverse Technologies GEOS System Support (LEDS, GPIO, etc)"
	select CONFIG_GPIOLIB
	depends on CONFIG_DMI
	---help---
	  This option enables system support for the Traverse Technologies CONFIG_GEOS.

config CONFIG_TS5500
	bool "Technologic Systems TS-5500 platform support"
	depends on CONFIG_MELAN
	select CONFIG_CHECK_SIGNATURE
	select CONFIG_NEW_LEDS
	select CONFIG_LEDS_CLASS
	---help---
	  This option enables system support for the Technologic Systems TS-5500.

endif # CONFIG_X86_32

config CONFIG_AMD_NB
	def_bool y
	depends on CONFIG_CPU_SUP_AMD && CONFIG_PCI

source "drivers/pcmcia/Kconfig"

config CONFIG_RAPIDIO
	tristate "RapidIO support"
	depends on CONFIG_PCI
	default n
	help
	  If enabled this option will include drivers and the core
	  infrastructure code to support RapidIO interconnect devices.

source "drivers/rapidio/Kconfig"

config CONFIG_X86_SYSFB
	bool "Mark VGA/VBE/EFI FB as generic system framebuffer"
	help
	  Firmwares often provide initial graphics framebuffers so the BIOS,
	  bootloader or kernel can show basic video-output during boot for
	  user-guidance and debugging. Historically, x86 used the VESA BIOS
	  Extensions and CONFIG_EFI-framebuffers for this, which are mostly limited
	  to x86.
	  This option, if enabled, marks VGA/VBE/CONFIG_EFI framebuffers as generic
	  framebuffers so the new generic system-framebuffer drivers can be
	  used on x86. If the framebuffer is not compatible with the generic
	  modes, it is adverticed as fallback platform framebuffer so legacy
	  drivers like efifb, vesafb and uvesafb can pick it up.
	  If this option is not selected, all system framebuffers are always
	  marked as fallback platform framebuffers as usual.

	  Note: Legacy fbdev drivers, including vesafb, efifb, uvesafb, will
	  not be able to pick up generic system framebuffers if this option
	  is selected. You are highly encouraged to enable simplefb as
	  replacement if you select this option. simplefb can correctly deal
	  with generic system framebuffers. But you should still keep vesafb
	  and others enabled as fallback if a system framebuffer is
	  incompatible with simplefb.

	  If unsure, say Y.

endmenu


menu "Executable file formats / Emulations"

source "fs/Kconfig.binfmt"

config CONFIG_IA32_EMULATION
	bool "IA32 Emulation"
	depends on CONFIG_X86_64
	select CONFIG_ARCH_WANT_OLD_COMPAT_IPC
	select CONFIG_BINFMT_ELF
	select CONFIG_COMPAT_BINFMT_ELF
	select CONFIG_COMPAT_OLD_SIGACTION
	---help---
	  Include code to run legacy 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.

config CONFIG_IA32_AOUT
	tristate "IA32 a.out support"
	depends on CONFIG_IA32_EMULATION
	---help---
	  Support old a.out binaries in the 32bit emulation.

config CONFIG_X86_X32
	bool "x32 ABI for 64-bit mode"
	depends on CONFIG_X86_64
	---help---
	  Include code to run binaries for the x32 native 32-bit ABI
	  for 64-bit processors.  An x32 process gets access to the
	  full 64-bit register file and wide data path while leaving
	  pointers at 32 bits for smaller memory footprint.

	  You will need a recent binutils (2.22 or later) with
	  elf32_x86_64 support enabled to compile a kernel with this
	  option set.

config CONFIG_COMPAT_32
	def_bool y
	depends on CONFIG_IA32_EMULATION || CONFIG_X86_32
	select CONFIG_HAVE_UID16
	select CONFIG_OLD_SIGSUSPEND3

config CONFIG_COMPAT
	def_bool y
	depends on CONFIG_IA32_EMULATION || CONFIG_X86_X32

if CONFIG_COMPAT
config CONFIG_COMPAT_FOR_U64_ALIGNMENT
	def_bool y

config CONFIG_SYSVIPC_COMPAT
	def_bool y
	depends on CONFIG_SYSVIPC

config CONFIG_KEYS_COMPAT
	def_bool y
	depends on CONFIG_KEYS
endif

endmenu


config CONFIG_HAVE_ATOMIC_IOMAP
	def_bool y
	depends on CONFIG_X86_32

config CONFIG_X86_DEV_DMA_OPS
	bool
	depends on CONFIG_X86_64 || CONFIG_STA2X11

config CONFIG_X86_DMA_REMAP
	bool
	depends on CONFIG_STA2X11

config CONFIG_PMC_ATOM
	def_bool y
        depends on CONFIG_PCI

source "net/Kconfig"

source "drivers/Kconfig"

source "drivers/firmware/Kconfig"

source "fs/Kconfig"

source "arch/x86/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "arch/x86/kvm/Kconfig"

source "lib/Kconfig"