15c48b108SAl Viromainmenu "User Mode Linux/$SUBARCH $KERNELVERSION Kernel Configuration" 25c48b108SAl Viro 35c48b108SAl Virosource "arch/um/Kconfig.common" 45c48b108SAl Viro 55c48b108SAl Viromenu "UML-specific options" 65c48b108SAl Viro 75c48b108SAl Viromenu "Host processor type and features" 85c48b108SAl Viro 95c48b108SAl Virosource "arch/x86/Kconfig.cpu" 105c48b108SAl Viro 115c48b108SAl Viroendmenu 125c48b108SAl Viro 135c48b108SAl Viroconfig UML_X86 145c48b108SAl Viro def_bool y 155c48b108SAl Viro select GENERIC_FIND_FIRST_BIT 165c48b108SAl Viro 175c48b108SAl Viroconfig 64BIT 18*4c3ff747SAl Viro bool "64-bit kernel" if SUBARCH = "x86" 19*4c3ff747SAl Viro default SUBARCH != "i386" 205c48b108SAl Viro 215c48b108SAl Viroconfig X86_32 225c48b108SAl Viro def_bool !64BIT 235c48b108SAl Viro select HAVE_AOUT 245c48b108SAl Viro 255c48b108SAl Viroconfig X86_64 265c48b108SAl Viro def_bool 64BIT 275c48b108SAl Viro 285c48b108SAl Viroconfig RWSEM_XCHGADD_ALGORITHM 295c48b108SAl Viro def_bool X86_XADD && 64BIT 305c48b108SAl Viro 315c48b108SAl Viroconfig RWSEM_GENERIC_SPINLOCK 325c48b108SAl Viro def_bool !RWSEM_XCHGADD_ALGORITHM 335c48b108SAl Viro 345c48b108SAl Viroconfig 3_LEVEL_PGTABLES 355c48b108SAl Viro bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT 365c48b108SAl Viro default 64BIT 375c48b108SAl Viro depends on EXPERIMENTAL 385c48b108SAl Viro help 395c48b108SAl Viro Three-level pagetables will let UML have more than 4G of physical 405c48b108SAl Viro memory. All the memory that can't be mapped directly will be treated 415c48b108SAl Viro as high memory. 425c48b108SAl Viro 435c48b108SAl Viro However, this it experimental on 32-bit architectures, so if unsure say 445c48b108SAl Viro N (on x86-64 it's automatically enabled, instead, as it's safe there). 455c48b108SAl Viro 465c48b108SAl Viroconfig ARCH_HAS_SC_SIGNALS 475c48b108SAl Viro def_bool !64BIT 485c48b108SAl Viro 495c48b108SAl Viroconfig ARCH_REUSE_HOST_VSYSCALL_AREA 505c48b108SAl Viro def_bool !64BIT 515c48b108SAl Viro 525c48b108SAl Viroconfig GENERIC_HWEIGHT 535c48b108SAl Viro def_bool y 545c48b108SAl Viro 555c48b108SAl Virosource "arch/um/Kconfig.um" 565c48b108SAl Viro 575c48b108SAl Viroendmenu 585c48b108SAl Viro 595c48b108SAl Virosource "arch/um/Kconfig.rest" 60