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 MODULES_USE_ELF_REL
28 select MODULES_USE_ELF_RELA
30 config RWSEM_XCHGADD_ALGORITHM
31 def_bool X86_XADD && 64BIT
33 config RWSEM_GENERIC_SPINLOCK
34 def_bool !RWSEM_XCHGADD_ALGORITHM
36 config 3_LEVEL_PGTABLES
37 bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
39 depends on EXPERIMENTAL
41 Three-level pagetables will let UML have more than 4G of physical
42 memory. All the memory that can't be mapped directly will be treated
45 However, this it experimental on 32-bit architectures, so if unsure say
46 N (on x86-64 it's automatically enabled, instead, as it's safe there).
48 config ARCH_HAS_SC_SIGNALS
51 config ARCH_REUSE_HOST_VSYSCALL_AREA
54 config GENERIC_HWEIGHT
57 source "arch/um/Kconfig.um"
61 source "arch/um/Kconfig.rest"