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
28 select OLD_SIGSUSPEND3
33 select MODULES_USE_ELF_RELA
35 config RWSEM_XCHGADD_ALGORITHM
38 config RWSEM_GENERIC_SPINLOCK
39 def_bool !RWSEM_XCHGADD_ALGORITHM
41 config 3_LEVEL_PGTABLES
42 bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
44 depends on EXPERIMENTAL
46 Three-level pagetables will let UML have more than 4G of physical
47 memory. All the memory that can't be mapped directly will be treated
50 However, this it experimental on 32-bit architectures, so if unsure say
51 N (on x86-64 it's automatically enabled, instead, as it's safe there).
53 config ARCH_HAS_SC_SIGNALS
56 config ARCH_REUSE_HOST_VSYSCALL_AREA
59 config GENERIC_HWEIGHT
62 source "arch/um/Kconfig.um"
66 source "arch/um/Kconfig.rest"