1mainmenu "User Mode Linux/$SUBARCH $KERNELVERSION Kernel Configuration" 2 3source "arch/um/Kconfig.common" 4 5menu "UML-specific options" 6 7menu "Host processor type and features" 8 9source "arch/x86/Kconfig.cpu" 10 11endmenu 12 13config UML_X86 14 def_bool y 15 select GENERIC_FIND_FIRST_BIT 16 select GENERIC_KERNEL_THREAD 17 select GENERIC_KERNEL_EXECVE 18 19config 64BIT 20 bool "64-bit kernel" if SUBARCH = "x86" 21 default SUBARCH != "i386" 22 23config X86_32 24 def_bool !64BIT 25 select HAVE_AOUT 26 select ARCH_WANT_IPC_PARSE_VERSION 27 select MODULES_USE_ELF_REL 28 29config X86_64 30 def_bool 64BIT 31 select MODULES_USE_ELF_RELA 32 33config RWSEM_XCHGADD_ALGORITHM 34 def_bool X86_XADD && 64BIT 35 36config RWSEM_GENERIC_SPINLOCK 37 def_bool !RWSEM_XCHGADD_ALGORITHM 38 39config 3_LEVEL_PGTABLES 40 bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT 41 default 64BIT 42 depends on EXPERIMENTAL 43 help 44 Three-level pagetables will let UML have more than 4G of physical 45 memory. All the memory that can't be mapped directly will be treated 46 as high memory. 47 48 However, this it experimental on 32-bit architectures, so if unsure say 49 N (on x86-64 it's automatically enabled, instead, as it's safe there). 50 51config ARCH_HAS_SC_SIGNALS 52 def_bool !64BIT 53 54config ARCH_REUSE_HOST_VSYSCALL_AREA 55 def_bool !64BIT 56 57config GENERIC_HWEIGHT 58 def_bool y 59 60source "arch/um/Kconfig.um" 61 62endmenu 63 64source "arch/um/Kconfig.rest" 65