1 menu "Host processor type and features"
3 source "arch/x86/Kconfig.cpu"
12 default SUBARCH = "x86_64"
18 config RWSEM_XCHGADD_ALGORITHM
21 config RWSEM_GENERIC_SPINLOCK
24 config 3_LEVEL_PGTABLES
25 bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
27 depends on EXPERIMENTAL
29 Three-level pagetables will let UML have more than 4G of physical
30 memory. All the memory that can't be mapped directly will be treated
33 However, this it experimental on 32-bit architectures, so if unsure say
34 N (on x86-64 it's automatically enabled, instead, as it's safe there).
36 config ARCH_HAS_SC_SIGNALS
39 config ARCH_REUSE_HOST_VSYSCALL_AREA
45 config GENERIC_HWEIGHT