config UML_X86 bool default y config 64BIT bool default n config TOP_ADDR hex default 0xc0000000 if !HOST_2G_2G default 0x80000000 if HOST_2G_2G config 3_LEVEL_PGTABLES bool "Three-level pagetables" default n help Three-level pagetables will let UML have more than 4G of physical memory. All the memory that can't be mapped directly will be treated as high memory. config ARCH_HAS_SC_SIGNALS bool default y config ARCH_REUSE_HOST_VSYSCALL_AREA bool default y