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Diffstat (limited to 'arch/x86/um/Kconfig')
| -rw-r--r-- | arch/x86/um/Kconfig | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig new file mode 100644 index 0000000000..186f132684 --- /dev/null +++ b/arch/x86/um/Kconfig @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: GPL-2.0 + +menu "Host processor type and features" + +source "arch/x86/Kconfig.cpu" + +endmenu + +config UML_X86 + def_bool y + select ARCH_BINFMT_ELF_EXTRA_PHDRS if X86_32 + select DCACHE_WORD_ACCESS + +config 64BIT + bool "64-bit kernel" if "$(SUBARCH)" = "x86" + default "$(SUBARCH)" != "i386" + +config X86_32 + def_bool !64BIT + select ARCH_32BIT_OFF_T + select ARCH_WANT_IPC_PARSE_VERSION + select MODULES_USE_ELF_REL + select CLONE_BACKWARDS + select OLD_SIGSUSPEND3 + select OLD_SIGACTION + +config X86_64 + def_bool 64BIT + select MODULES_USE_ELF_RELA + +config 3_LEVEL_PGTABLES + bool "Three-level pagetables" if !64BIT + default 64BIT + 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. + + However, this it experimental on 32-bit architectures, so if unsure say + N (on x86-64 it's automatically enabled, instead, as it's safe there). + +config ARCH_HAS_SC_SIGNALS + def_bool !64BIT + +config ARCH_REUSE_HOST_VSYSCALL_AREA + def_bool !64BIT + +config GENERIC_HWEIGHT + def_bool y |