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_KERNEL_THREAD
17 select GENERIC_KERNEL_EXECVE
20 bool "64-bit kernel" if SUBARCH = "x86"
21 default SUBARCH != "i386"
26 select ARCH_WANT_IPC_PARSE_VERSION
27 select MODULES_USE_ELF_REL
28 select CLONE_BACKWARDS
32 select MODULES_USE_ELF_RELA
34 config RWSEM_XCHGADD_ALGORITHM
37 config RWSEM_GENERIC_SPINLOCK
38 def_bool !RWSEM_XCHGADD_ALGORITHM
40 config 3_LEVEL_PGTABLES
41 bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
43 depends on EXPERIMENTAL
45 Three-level pagetables will let UML have more than 4G of physical
46 memory. All the memory that can't be mapped directly will be treated
49 However, this it experimental on 32-bit architectures, so if unsure say
50 N (on x86-64 it's automatically enabled, instead, as it's safe there).
52 config ARCH_HAS_SC_SIGNALS
55 config ARCH_REUSE_HOST_VSYSCALL_AREA
58 config GENERIC_HWEIGHT
61 source "arch/um/Kconfig.um"
65 source "arch/um/Kconfig.rest"