1 # SPDX-License-Identifier: GPL-2.0
2
3 menu "Host processor type and features"
4
5 source "arch/x86/Kconfig.cpu"
6
7 endmenu
8
9 config UML_X86
10 def_bool y
11 select ARCH_BINFMT_ELF_EXTRA_PHDRS if
12 select DCACHE_WORD_ACCESS
13
14 config 64BIT
15 bool "64-bit kernel" if "$(SUBARCH)" =
16 default "$(SUBARCH)" != "i386"
17
18 config X86_32
19 def_bool !64BIT
20 select ARCH_32BIT_OFF_T
21 select ARCH_WANT_IPC_PARSE_VERSION
22 select MODULES_USE_ELF_REL
23 select CLONE_BACKWARDS
24 select OLD_SIGSUSPEND3
25 select OLD_SIGACTION
26
27 config X86_64
28 def_bool 64BIT
29 select MODULES_USE_ELF_RELA
30
31 config 3_LEVEL_PGTABLES
32 bool "Three-level pagetables" if !64BI
33 default 64BIT
34 help
35 Three-level pagetables will let UML
36 memory. All the memory that can't b
37 as high memory.
38
39 However, this it experimental on 32-
40 N (on x86-64 it's automatically enab
41
42 config ARCH_HAS_SC_SIGNALS
43 def_bool !64BIT
44
45 config ARCH_REUSE_HOST_VSYSCALL_AREA
46 def_bool !64BIT
47
48 config GENERIC_HWEIGHT
49 def_bool y
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