1 mainmenu "User Mode Linux/$SUBARCH $KERNELVERSION Kernel Configuration"
3 source "arch/um/Kconfig.common"
5 menu "UML-specific options"
7 menu "Host processor type and features"
9 source "arch/x86/Kconfig.cpu"
15 select GENERIC_FIND_FIRST_BIT
18 bool "64-bit kernel" if SUBARCH = "x86"
19 default SUBARCH != "i386"
24 select ARCH_WANT_IPC_PARSE_VERSION
25 select MODULES_USE_ELF_REL
26 select CLONE_BACKWARDS
27 select OLD_SIGSUSPEND3
32 select MODULES_USE_ELF_RELA
36 default "arch/um/configs/i386_defconfig" if X86_32
37 default "arch/um/configs/x86_64_defconfig" if X86_64
39 config RWSEM_XCHGADD_ALGORITHM
42 config RWSEM_GENERIC_SPINLOCK
43 def_bool !RWSEM_XCHGADD_ALGORITHM
45 config 3_LEVEL_PGTABLES
46 bool "Three-level pagetables" if !64BIT
49 Three-level pagetables will let UML have more than 4G of physical
50 memory. All the memory that can't be mapped directly will be treated
53 However, this it experimental on 32-bit architectures, so if unsure say
54 N (on x86-64 it's automatically enabled, instead, as it's safe there).
56 config ARCH_HAS_SC_SIGNALS
59 config ARCH_REUSE_HOST_VSYSCALL_AREA
62 config GENERIC_HWEIGHT
65 source "arch/um/Kconfig.um"
69 source "arch/um/Kconfig.rest"