linux/arch/um/Kconfig.i386
Jeff Dike 3013449243 [PATCH] uml: UML/i386 cmpxchg fix
Using native cmpxchg offers a slight performance improvement in uml/i386.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-17 11:50:01 -07:00

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config UML_X86
bool
default y
config 64BIT
bool
default n
config SEMAPHORE_SLEEPERS
bool
default y
config TOP_ADDR
hex
default 0xc0000000 if !HOST_2G_2G
default 0x80000000 if HOST_2G_2G
config 3_LEVEL_PGTABLES
bool "Three-level pagetables"
default n
help
Three-level pagetables will let UML have more than 4G of physical
memory. All the memory that can't be mapped directly will be treated
as high memory.
config STUB_CODE
hex
default 0xbfffe000
config STUB_DATA
hex
default 0xbffff000
config STUB_START
hex
default STUB_CODE
config ARCH_HAS_SC_SIGNALS
bool
default y
config ARCH_REUSE_HOST_VSYSCALL_AREA
bool
default y
config X86_CMPXCHG
bool
default y