Merge branch 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / x86 / um / Kconfig
1 mainmenu "User Mode Linux/$SUBARCH $KERNELVERSION Kernel Configuration"
2
3 source "arch/um/Kconfig.common"
4
5 menu "UML-specific options"
6
7 menu "Host processor type and features"
8
9 source "arch/x86/Kconfig.cpu"
10
11 endmenu
12
13 config UML_X86
14         def_bool y
15         select GENERIC_FIND_FIRST_BIT
16         select GENERIC_KERNEL_THREAD
17         select GENERIC_KERNEL_EXECVE
18
19 config 64BIT
20         bool "64-bit kernel" if SUBARCH = "x86"
21         default SUBARCH != "i386"
22
23 config X86_32
24         def_bool !64BIT
25         select HAVE_AOUT
26         select ARCH_WANT_IPC_PARSE_VERSION
27         select MODULES_USE_ELF_REL
28         select CLONE_BACKWARDS
29
30 config X86_64
31         def_bool 64BIT
32         select MODULES_USE_ELF_RELA
33
34 config RWSEM_XCHGADD_ALGORITHM
35         def_bool 64BIT
36
37 config RWSEM_GENERIC_SPINLOCK
38         def_bool !RWSEM_XCHGADD_ALGORITHM
39
40 config 3_LEVEL_PGTABLES
41         bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
42         default 64BIT
43         depends on EXPERIMENTAL
44         help
45         Three-level pagetables will let UML have more than 4G of physical
46         memory.  All the memory that can't be mapped directly will be treated
47         as high memory.
48
49         However, this it experimental on 32-bit architectures, so if unsure say
50         N (on x86-64 it's automatically enabled, instead, as it's safe there).
51
52 config ARCH_HAS_SC_SIGNALS
53         def_bool !64BIT
54
55 config ARCH_REUSE_HOST_VSYSCALL_AREA
56         def_bool !64BIT
57
58 config GENERIC_HWEIGHT
59         def_bool y
60
61 source "arch/um/Kconfig.um"
62
63 endmenu
64
65 source "arch/um/Kconfig.rest"