| 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 | 
 |  | 
 | 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 | 
 | 	select OLD_SIGSUSPEND3 | 
 | 	select OLD_SIGACTION | 
 |  | 
 | 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" if !64BIT | 
 | 	default 64BIT | 
 | 	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" |