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 161f02ab4aSAl Viro select GENERIC_KERNEL_THREAD 17*22e2430dSAl Viro select GENERIC_KERNEL_EXECVE 185c48b108SAl Viro 195c48b108SAl Viroconfig 64BIT 204c3ff747SAl Viro bool "64-bit kernel" if SUBARCH = "x86" 214c3ff747SAl Viro default SUBARCH != "i386" 225c48b108SAl Viro 235c48b108SAl Viroconfig X86_32 245c48b108SAl Viro def_bool !64BIT 255c48b108SAl Viro select HAVE_AOUT 265c48b108SAl Viro 275c48b108SAl Viroconfig X86_64 285c48b108SAl Viro def_bool 64BIT 295c48b108SAl Viro 305c48b108SAl Viroconfig RWSEM_XCHGADD_ALGORITHM 315c48b108SAl Viro def_bool X86_XADD && 64BIT 325c48b108SAl Viro 335c48b108SAl Viroconfig RWSEM_GENERIC_SPINLOCK 345c48b108SAl Viro def_bool !RWSEM_XCHGADD_ALGORITHM 355c48b108SAl Viro 365c48b108SAl Viroconfig 3_LEVEL_PGTABLES 375c48b108SAl Viro bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT 385c48b108SAl Viro default 64BIT 395c48b108SAl Viro depends on EXPERIMENTAL 405c48b108SAl Viro help 415c48b108SAl Viro Three-level pagetables will let UML have more than 4G of physical 425c48b108SAl Viro memory. All the memory that can't be mapped directly will be treated 435c48b108SAl Viro as high memory. 445c48b108SAl Viro 455c48b108SAl Viro However, this it experimental on 32-bit architectures, so if unsure say 465c48b108SAl Viro N (on x86-64 it's automatically enabled, instead, as it's safe there). 475c48b108SAl Viro 485c48b108SAl Viroconfig ARCH_HAS_SC_SIGNALS 495c48b108SAl Viro def_bool !64BIT 505c48b108SAl Viro 515c48b108SAl Viroconfig ARCH_REUSE_HOST_VSYSCALL_AREA 525c48b108SAl Viro def_bool !64BIT 535c48b108SAl Viro 545c48b108SAl Viroconfig GENERIC_HWEIGHT 555c48b108SAl Viro def_bool y 565c48b108SAl Viro 575c48b108SAl Virosource "arch/um/Kconfig.um" 585c48b108SAl Viro 595c48b108SAl Viroendmenu 605c48b108SAl Viro 615c48b108SAl Virosource "arch/um/Kconfig.rest" 62