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- mainmenu "User Mode Linux/$SUBARCH $KERNELVERSION Kernel Configuration"
- source "arch/um/Kconfig.common"
- menu "UML-specific options"
- menu "Host processor type and features"
- config CMPXCHG_LOCAL
- bool
- default n
- config CMPXCHG_DOUBLE
- bool
- default n
- source "arch/x86/Kconfig.cpu"
- endmenu
- config UML_X86
- def_bool y
- select GENERIC_FIND_FIRST_BIT
- config 64BIT
- bool
- default SUBARCH = "x86_64"
- config X86_32
- def_bool !64BIT
- select HAVE_AOUT
- config X86_64
- def_bool 64BIT
- config RWSEM_XCHGADD_ALGORITHM
- def_bool X86_XADD && 64BIT
- config RWSEM_GENERIC_SPINLOCK
- def_bool !RWSEM_XCHGADD_ALGORITHM
- config 3_LEVEL_PGTABLES
- bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
- default 64BIT
- 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
- def_bool !64BIT
- config ARCH_REUSE_HOST_VSYSCALL_AREA
- def_bool !64BIT
- config GENERIC_HWEIGHT
- def_bool y
- source "arch/um/Kconfig.um"
- endmenu
- source "arch/um/Kconfig.rest"
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