1b2441318SGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0 2104daea1SMasahiro Yamadamainmenu "User Mode Linux/$(SUBARCH) $(KERNELVERSION) Kernel Configuration" 35c48b108SAl Viro 4*21c54b77SMasahiro Yamadacomment "Compiler: $(CC_VERSION_TEXT)" 5*21c54b77SMasahiro Yamada 65c48b108SAl Virosource "arch/um/Kconfig.common" 75c48b108SAl Viro 85c48b108SAl Viromenu "UML-specific options" 95c48b108SAl Viro 105c48b108SAl Viromenu "Host processor type and features" 115c48b108SAl Viro 125c48b108SAl Virosource "arch/x86/Kconfig.cpu" 135c48b108SAl Viro 145c48b108SAl Viroendmenu 155c48b108SAl Viro 165c48b108SAl Viroconfig UML_X86 175c48b108SAl Viro def_bool y 185c48b108SAl Viro select GENERIC_FIND_FIRST_BIT 195c48b108SAl Viro 205c48b108SAl Viroconfig 64BIT 21104daea1SMasahiro Yamada bool "64-bit kernel" if "$(SUBARCH)" = "x86" 22104daea1SMasahiro Yamada default "$(SUBARCH)" != "i386" 235c48b108SAl Viro 245c48b108SAl Viroconfig X86_32 255c48b108SAl Viro def_bool !64BIT 265c48b108SAl Viro select HAVE_AOUT 27bbb35efcSRichard Weinberger select ARCH_WANT_IPC_PARSE_VERSION 28786d35d4SDavid Howells select MODULES_USE_ELF_REL 291d4b4b29SAl Viro select CLONE_BACKWARDS 3015ce1f71SAl Viro select OLD_SIGSUSPEND3 315b3eb3adSAl Viro select OLD_SIGACTION 325c48b108SAl Viro 335c48b108SAl Viroconfig X86_64 345c48b108SAl Viro def_bool 64BIT 35786d35d4SDavid Howells select MODULES_USE_ELF_RELA 365c48b108SAl Viro 37e40f04d0SRamkumar Ramachandraconfig ARCH_DEFCONFIG 38e40f04d0SRamkumar Ramachandra string 39e40f04d0SRamkumar Ramachandra default "arch/um/configs/i386_defconfig" if X86_32 40e40f04d0SRamkumar Ramachandra default "arch/um/configs/x86_64_defconfig" if X86_64 41e40f04d0SRamkumar Ramachandra 425c48b108SAl Viroconfig RWSEM_XCHGADD_ALGORITHM 437ac468b1SH. Peter Anvin def_bool 64BIT 445c48b108SAl Viro 455c48b108SAl Viroconfig RWSEM_GENERIC_SPINLOCK 465c48b108SAl Viro def_bool !RWSEM_XCHGADD_ALGORITHM 475c48b108SAl Viro 485c48b108SAl Viroconfig 3_LEVEL_PGTABLES 4901b35ab7SKees Cook bool "Three-level pagetables" if !64BIT 505c48b108SAl Viro default 64BIT 515c48b108SAl Viro help 525c48b108SAl Viro Three-level pagetables will let UML have more than 4G of physical 535c48b108SAl Viro memory. All the memory that can't be mapped directly will be treated 545c48b108SAl Viro as high memory. 555c48b108SAl Viro 565c48b108SAl Viro However, this it experimental on 32-bit architectures, so if unsure say 575c48b108SAl Viro N (on x86-64 it's automatically enabled, instead, as it's safe there). 585c48b108SAl Viro 595c48b108SAl Viroconfig ARCH_HAS_SC_SIGNALS 605c48b108SAl Viro def_bool !64BIT 615c48b108SAl Viro 625c48b108SAl Viroconfig ARCH_REUSE_HOST_VSYSCALL_AREA 635c48b108SAl Viro def_bool !64BIT 645c48b108SAl Viro 655c48b108SAl Viroconfig GENERIC_HWEIGHT 665c48b108SAl Viro def_bool y 675c48b108SAl Viro 685c48b108SAl Virosource "arch/um/Kconfig.um" 695c48b108SAl Viro 705c48b108SAl Viroendmenu 715c48b108SAl Viro 725c48b108SAl Virosource "arch/um/Kconfig.rest" 73