blob: 9fa950df80e54ff6d6aa661e3c7e9c6bbe049d2b [file] [log] [blame]
Geert Uytterhoeven7fa38e72011-07-25 17:12:48 -07001mainmenu "User Mode Linux/$SUBARCH $KERNELVERSION Kernel Configuration"
2
Al Viro61bee202008-08-25 04:51:27 -04003source "arch/um/Kconfig.common"
4
5menu "UML-specific options"
6
Paolo 'Blaisorblade' Giarrusso85977372005-11-13 16:07:06 -08007menu "Host processor type and features"
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Al Viro7a78a172007-10-29 04:34:31 +00009source "arch/x86/Kconfig.cpu"
Paolo 'Blaisorblade' Giarrusso85977372005-11-13 16:07:06 -080010
11endmenu
12
Paolo 'Blaisorblade' Giarrussoc45166be32005-05-01 08:58:54 -070013config UML_X86
Jeff Dike54d67ee2007-12-01 12:16:28 -080014 def_bool y
Jan Beulichc49aa5b2011-03-08 09:24:26 +000015 select GENERIC_FIND_FIRST_BIT
Al Viro1f02ab42012-09-21 20:32:29 -040016 select GENERIC_KERNEL_THREAD
Al Viro22e2430d2012-10-10 21:35:42 -040017 select GENERIC_KERNEL_EXECVE
Jeff Dike54d67ee2007-12-01 12:16:28 -080018
Paolo 'Blaisorblade' Giarrussoc45166be32005-05-01 08:58:54 -070019config 64BIT
Al Viro4c3ff742012-02-11 06:15:50 -050020 bool "64-bit kernel" if SUBARCH = "x86"
21 default SUBARCH != "i386"
Al Viro41984262008-08-23 17:00:34 -040022
23config X86_32
24 def_bool !64BIT
25 select HAVE_AOUT
Richard Weinbergerbbb35ef2012-09-27 20:10:57 +020026 select ARCH_WANT_IPC_PARSE_VERSION
Al Viro41984262008-08-23 17:00:34 -040027
Jan Beulichbfc390612011-03-01 11:14:55 +000028config X86_64
29 def_bool 64BIT
30
Al Viro41984262008-08-23 17:00:34 -040031config RWSEM_XCHGADD_ALGORITHM
Richard Weinberger3a367902011-05-23 22:51:33 +020032 def_bool X86_XADD && 64BIT
Al Viro41984262008-08-23 17:00:34 -040033
34config RWSEM_GENERIC_SPINLOCK
Richard Weinberger3a367902011-05-23 22:51:33 +020035 def_bool !RWSEM_XCHGADD_ALGORITHM
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
Linus Torvalds1da177e2005-04-16 15:20:36 -070037config 3_LEVEL_PGTABLES
Al Viro41984262008-08-23 17:00:34 -040038 bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
39 default 64BIT
Paolo 'Blaisorblade' Giarrussoce2d2ae2006-01-18 17:42:59 -080040 depends on EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 help
42 Three-level pagetables will let UML have more than 4G of physical
43 memory. All the memory that can't be mapped directly will be treated
44 as high memory.
45
Paolo 'Blaisorblade' Giarrussoce2d2ae2006-01-18 17:42:59 -080046 However, this it experimental on 32-bit architectures, so if unsure say
47 N (on x86-64 it's automatically enabled, instead, as it's safe there).
48
Linus Torvalds1da177e2005-04-16 15:20:36 -070049config ARCH_HAS_SC_SIGNALS
Al Viro41984262008-08-23 17:00:34 -040050 def_bool !64BIT
Linus Torvalds1da177e2005-04-16 15:20:36 -070051
52config ARCH_REUSE_HOST_VSYSCALL_AREA
Al Viro41984262008-08-23 17:00:34 -040053 def_bool !64BIT
54
Akinobu Mitaf214ef32006-03-26 01:38:59 -080055config GENERIC_HWEIGHT
Al Viro41984262008-08-23 17:00:34 -040056 def_bool y
Al Viro61bee202008-08-25 04:51:27 -040057
58source "arch/um/Kconfig.um"
59
60endmenu
61
62source "arch/um/Kconfig.rest"