Kconfig

# x86 configuration
mainmenu "Linux Kernel Configuration for x86"

# Select 32 or 64 bit
config 64BIT
	bool "64-bit kernel" if ARCH = "x86"
	default ARCH = "x86_64"
	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 X86_32
	def_bool !64BIT

config X86_64
	def_bool 64BIT

### Arch settings
config X86
	def_bool y

config GENERIC_LOCKBREAK
	def_bool n

config GENERIC_TIME
	def_bool y

config GENERIC_CMOS_UPDATE
	def_bool y

config CLOCKSOURCE_WATCHDOG
	def_bool y

config GENERIC_CLOCKEVENTS
	def_bool y

config GENERIC_CLOCKEVENTS_BROADCAST
	def_bool y
	depends on X86_64 || (X86_32 && X86_LOCAL_APIC)

config LOCKDEP_SUPPORT
	def_bool y

config STACKTRACE_SUPPORT
	def_bool y

config SEMAPHORE_SLEEPERS
	def_bool y

config MMU
	def_bool y

config ZONE_DMA
	def_bool y

config QUICKLIST
	def_bool X86_32

config SBUS
	bool

config GENERIC_ISA_DMA
	def_bool y

config GENERIC_IOMAP
	def_bool y

config GENERIC_BUG
	def_bool y
	depends on BUG

config GENERIC_HWEIGHT
	def_bool y

config GENERIC_GPIO
	def_bool n

config ARCH_MAY_HAVE_PC_FDC
	def_bool y

config DMI
	def_bool y

config RWSEM_GENERIC_SPINLOCK
	def_bool !X86_XADD

config RWSEM_XCHGADD_ALGORITHM
	def_bool X86_XADD

config ARCH_HAS_ILOG2_U32
	def_bool n

config ARCH_HAS_ILOG2_U64
	def_bool n

config GENERIC_CALIBRATE_DELAY
	def_bool y

config GENERIC_TIME_VSYSCALL
	bool
	default X86_64

config HAVE_SETUP_PER_CPU_AREA
	def_bool X86_64

config ARCH_SUPPORTS_OPROFILE
	bool
	default y


config ZONE_DMA32
	bool
	default X86_64

config ARCH_POPULATES_NODE_MAP
	def_bool y

config AUDIT_ARCH
	bool
	default X86_64

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

config GENERIC_IRQ_PROBE
	bool
	default y

config GENERIC_PENDING_IRQ
	bool
	depends on GENERIC_HARDIRQS && SMP
	default y

config X86_SMP
	bool
	depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64)
	default y

config X86_32_SMP
	def_bool y
	depends on X86_32 && SMP

config X86_64_SMP
	def_bool y
	depends on X86_64 && SMP

config X86_HT
	bool
	depends on SMP
	depends on (X86_32 && !(X86_VISWS || X86_VOYAGER)) || (X86_64 && !MK8)
	default y

config X86_BIOS_REBOOT
	bool
	depends on X86_32 && !(X86_VISWS || X86_VOYAGER)
	default y

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

config KTIME_SCALAR
	def_bool X86_32
source "init/Kconfig"

menu "Processor type and features"

source "kernel/time/Kconfig"

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

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

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

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

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

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