mainmenu "User Mode Linux/$SUBARCH $KERNELVERSION Kernel Configuration" source "arch/um/Kconfig.common" menu "UML-specific options" menu "Host processor type and features" source "arch/x86/Kconfig.cpu" endmenu config UML_X86 def_bool y select GENERIC_FIND_FIRST_BIT select GENERIC_SIGALTSTACK config 64BIT bool "64-bit kernel" if SUBARCH = "x86" default SUBARCH != "i386" config X86_32 def_bool !64BIT select HAVE_AOUT select ARCH_WANT_IPC_PARSE_VERSION select MODULES_USE_ELF_REL select CLONE_BACKWARDS config X86_64 def_bool 64BIT select MODULES_USE_ELF_RELA config RWSEM_XCHGADD_ALGORITHM def_bool 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"