1b2441318SGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0 2*104daea1SMasahiro Yamadamainmenu "User Mode Linux/$(SUBARCH) $(KERNELVERSION) Kernel Configuration" 35c48b108SAl Viro 45c48b108SAl Virosource "arch/um/Kconfig.common" 55c48b108SAl Viro 65c48b108SAl Viromenu "UML-specific options" 75c48b108SAl Viro 85c48b108SAl Viromenu "Host processor type and features" 95c48b108SAl Viro 105c48b108SAl Virosource "arch/x86/Kconfig.cpu" 115c48b108SAl Viro 125c48b108SAl Viroendmenu 135c48b108SAl Viro 145c48b108SAl Viroconfig UML_X86 155c48b108SAl Viro def_bool y 165c48b108SAl Viro select GENERIC_FIND_FIRST_BIT 175c48b108SAl Viro 185c48b108SAl Viroconfig 64BIT 19*104daea1SMasahiro Yamada bool "64-bit kernel" if "$(SUBARCH)" = "x86" 20*104daea1SMasahiro Yamada default "$(SUBARCH)" != "i386" 215c48b108SAl Viro 225c48b108SAl Viroconfig X86_32 235c48b108SAl Viro def_bool !64BIT 245c48b108SAl Viro select HAVE_AOUT 25bbb35efcSRichard Weinberger select ARCH_WANT_IPC_PARSE_VERSION 26786d35d4SDavid Howells select MODULES_USE_ELF_REL 271d4b4b29SAl Viro select CLONE_BACKWARDS 2815ce1f71SAl Viro select OLD_SIGSUSPEND3 295b3eb3adSAl Viro select OLD_SIGACTION 305c48b108SAl Viro 315c48b108SAl Viroconfig X86_64 325c48b108SAl Viro def_bool 64BIT 33786d35d4SDavid Howells select MODULES_USE_ELF_RELA 345c48b108SAl Viro 35e40f04d0SRamkumar Ramachandraconfig ARCH_DEFCONFIG 36e40f04d0SRamkumar Ramachandra string 37e40f04d0SRamkumar Ramachandra default "arch/um/configs/i386_defconfig" if X86_32 38e40f04d0SRamkumar Ramachandra default "arch/um/configs/x86_64_defconfig" if X86_64 39e40f04d0SRamkumar Ramachandra 405c48b108SAl Viroconfig RWSEM_XCHGADD_ALGORITHM 417ac468b1SH. Peter Anvin def_bool 64BIT 425c48b108SAl Viro 435c48b108SAl Viroconfig RWSEM_GENERIC_SPINLOCK 445c48b108SAl Viro def_bool !RWSEM_XCHGADD_ALGORITHM 455c48b108SAl Viro 465c48b108SAl Viroconfig 3_LEVEL_PGTABLES 4701b35ab7SKees Cook bool "Three-level pagetables" if !64BIT 485c48b108SAl Viro default 64BIT 495c48b108SAl Viro help 505c48b108SAl Viro Three-level pagetables will let UML have more than 4G of physical 515c48b108SAl Viro memory. All the memory that can't be mapped directly will be treated 525c48b108SAl Viro as high memory. 535c48b108SAl Viro 545c48b108SAl Viro However, this it experimental on 32-bit architectures, so if unsure say 555c48b108SAl Viro N (on x86-64 it's automatically enabled, instead, as it's safe there). 565c48b108SAl Viro 575c48b108SAl Viroconfig ARCH_HAS_SC_SIGNALS 585c48b108SAl Viro def_bool !64BIT 595c48b108SAl Viro 605c48b108SAl Viroconfig ARCH_REUSE_HOST_VSYSCALL_AREA 615c48b108SAl Viro def_bool !64BIT 625c48b108SAl Viro 635c48b108SAl Viroconfig GENERIC_HWEIGHT 645c48b108SAl Viro def_bool y 655c48b108SAl Viro 665c48b108SAl Virosource "arch/um/Kconfig.um" 675c48b108SAl Viro 685c48b108SAl Viroendmenu 695c48b108SAl Viro 705c48b108SAl Virosource "arch/um/Kconfig.rest" 71