linux-stable/arch/x86/um/Kconfig
Linus Torvalds 88e6c02076 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro:
 "Assorted bits and pieces"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  aio: drop needless assignment in aio_read()
  clean overflow checks in count_mounts() a bit
  seq_file: fix NULL pointer arithmetic warning
  uml/x86: use x86 load_unaligned_zeropad()
  asm/user.h: killed unused macros
  constify struct path argument of finish_automount()/do_add_mount()
  fs: Remove FIXME comment in generic_write_checks()
2022-04-01 19:57:03 -07:00

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# 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