linux/arch/um/Kconfig.i386
Alexander van Heukelum 19870def58 x86, bitops: select the generic bitmap search functions
Introduce GENERIC_FIND_FIRST_BIT and GENERIC_FIND_NEXT_BIT in
lib/Kconfig, defaulting to off. An arch that wants to use the
generic implementation now only has to use a select statement
to include them.

I added an always-y option (X86_CPU) to arch/x86/Kconfig.cpu
and used that to select the generic search functions. This
way ARCH=um SUBARCH=i386 automatically picks up the change
too, and arch/um/Kconfig.i386 can therefore be simplified a
bit. ARCH=um SUBARCH=x86_64 does things differently, but
still compiles fine. It seems that a "def_bool y" always
wins over a "def_bool n"?

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:17 +02:00

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menu "Host processor type and features"
source "arch/x86/Kconfig.cpu"
endmenu
config UML_X86
bool
default y
config X86_32
bool
default y
config RWSEM_XCHGADD_ALGORITHM
def_bool y
config 64BIT
bool
default n
config 3_LEVEL_PGTABLES
bool "Three-level pagetables (EXPERIMENTAL)"
default n
depends on EXPERIMENTAL
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.
However, this it experimental on 32-bit architectures, so if unsure say
N (on x86-64 it's automatically enabled, instead, as it's safe there).
config ARCH_HAS_SC_SIGNALS
bool
default y
config ARCH_REUSE_HOST_VSYSCALL_AREA
bool
default y
config GENERIC_HWEIGHT
bool
default y
config ARCH_SUPPORTS_AOUT
def_bool y