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
19 default SUBARCH = "x86_64"
28 config RWSEM_XCHGADD_ALGORITHM
29 def_bool X86_XADD && 64BIT
31 config RWSEM_GENERIC_SPINLOCK
32 def_bool !RWSEM_XCHGADD_ALGORITHM
34 config 3_LEVEL_PGTABLES
35 bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
37 depends on EXPERIMENTAL
39 Three-level pagetables will let UML have more than 4G of physical
40 memory. All the memory that can't be mapped directly will be treated
43 However, this it experimental on 32-bit architectures, so if unsure say
44 N (on x86-64 it's automatically enabled, instead, as it's safe there).
46 config ARCH_HAS_SC_SIGNALS
49 config ARCH_REUSE_HOST_VSYSCALL_AREA
52 config GENERIC_HWEIGHT
55 source "arch/um/Kconfig.um"
59 source "arch/um/Kconfig.rest"