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
30 select MODULES_USE_ELF_RELA
32 config RWSEM_XCHGADD_ALGORITHM
33 def_bool X86_XADD && 64BIT
35 config RWSEM_GENERIC_SPINLOCK
36 def_bool !RWSEM_XCHGADD_ALGORITHM
38 config 3_LEVEL_PGTABLES
39 bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
41 depends on EXPERIMENTAL
43 Three-level pagetables will let UML have more than 4G of physical
44 memory. All the memory that can't be mapped directly will be treated
47 However, this it experimental on 32-bit architectures, so if unsure say
48 N (on x86-64 it's automatically enabled, instead, as it's safe there).
50 config ARCH_HAS_SC_SIGNALS
53 config ARCH_REUSE_HOST_VSYSCALL_AREA
56 config GENERIC_HWEIGHT
59 source "arch/um/Kconfig.um"
63 source "arch/um/Kconfig.rest"