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# x86 configuration
### Arch settings
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config X86
bool
default y
config 64BIT
def_bool X86_64
config GENERIC_TIME
bool
default y
config GENERIC_CMOS_UPDATE
bool
default y
config CLOCKSOURCE_WATCHDOG
bool
default y
config GENERIC_CLOCKEVENTS
bool
default y
config GENERIC_CLOCKEVENTS_BROADCAST
bool
default y
depends on X86_64 || (X86_32 && X86_LOCAL_APIC)
config LOCKDEP_SUPPORT
bool
default y
config STACKTRACE_SUPPORT
bool
default y
config SEMAPHORE_SLEEPERS
bool
default y
config MMU
bool
default y
config ZONE_DMA
bool
default y
config QUICKLIST
bool
default X86_32
config SBUS
bool
config GENERIC_ISA_DMA
bool
default y
config GENERIC_IOMAP
bool
default y
config GENERIC_BUG
bool
default y
depends on BUG
config GENERIC_HWEIGHT
bool
default y
config ARCH_MAY_HAVE_PC_FDC
bool
default y
config DMI
bool
default 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
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config GENERIC_TIME_VSYSCALL
bool
default X86_64
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 X86_32 && SMP && !X86_VOYAGER
default y
config X86_HT
bool
depends on SMP && !(X86_VISWS || X86_VOYAGER || 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
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menu "Processor type and features"
source "kernel/time/Kconfig"
config SMP
bool "Symmetric multi-processing support"
---help---
This enables support for systems with more than one CPU. If you have
a system with only one CPU, like most personal computers, say N. If
you have a system with more than one CPU, say Y.
If you say N here, the kernel will run on single and multiprocessor
machines, but will use only one CPU of a multiprocessor machine. If
you say Y here, the kernel will run on many, but not all,
singleprocessor machines. On a singleprocessor machine, the kernel
will run faster if you say N here.
Note that if you say Y here and choose architecture "586" or
"Pentium" under "Processor family", the kernel will not work on 486
architectures. Similarly, multiprocessor kernels for the "PPro"
architecture may not work on all Pentium based boards.
People using multiprocessor machines who say Y here should also say
Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
Management" code will be disabled if you say Y here.
See also the <file:Documentation/smp.txt>,
<file:Documentation/i386/IO-APIC.txt>,
<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
<http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
choice
prompt "Subarchitecture Type"
default X86_PC
config X86_PC
bool "PC-compatible"
help
Choose this option if your computer is a standard PC or compatible.
config X86_ELAN
bool "AMD Elan"
depends on X86_32
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