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
16 select GENERIC_SIGALTSTACK
19 bool "64-bit kernel" if SUBARCH = "x86"
20 default SUBARCH != "i386"
25 select ARCH_WANT_IPC_PARSE_VERSION
26 select MODULES_USE_ELF_REL
27 select CLONE_BACKWARDS
31 select MODULES_USE_ELF_RELA
33 config RWSEM_XCHGADD_ALGORITHM
36 config RWSEM_GENERIC_SPINLOCK
37 def_bool !RWSEM_XCHGADD_ALGORITHM
39 config 3_LEVEL_PGTABLES
40 bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
42 depends on EXPERIMENTAL
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
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).
51 config ARCH_HAS_SC_SIGNALS
54 config ARCH_REUSE_HOST_VSYSCALL_AREA
57 config GENERIC_HWEIGHT
60 source "arch/um/Kconfig.um"
64 source "arch/um/Kconfig.rest"