blob: a3725824449e73b0b6f626d86660ac9de8870127 [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"
8
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 Viro6bf9adf2012-12-14 14:09:47 -050016 select GENERIC_SIGALTSTACK
Jeff Dike54d67ee2007-12-01 12:16:28 -080017
Paolo 'Blaisorblade' Giarrussoc45166be32005-05-01 08:58:54 -070018config 64BIT
Al Viro4c3ff742012-02-11 06:15:50 -050019 bool "64-bit kernel" if SUBARCH = "x86"
20 default SUBARCH != "i386"
Al Viro41984262008-08-23 17:00:34 -040021
22config X86_32
23 def_bool !64BIT
24 select HAVE_AOUT
Richard Weinbergerbbb35ef2012-09-27 20:10:57 +020025 select ARCH_WANT_IPC_PARSE_VERSION
David Howells786d35d2012-09-28 14:31:03 +093026 select MODULES_USE_ELF_REL
Al Viro1d4b4b22012-10-22 22:34:11 -040027 select CLONE_BACKWARDS
Al Viro15ce1f72012-12-25 16:09:20 -050028 select OLD_SIGSUSPEND3
Al Viro41984262008-08-23 17:00:34 -040029
Jan Beulichbfc390612011-03-01 11:14:55 +000030config X86_64
31 def_bool 64BIT
David Howells786d35d2012-09-28 14:31:03 +093032 select MODULES_USE_ELF_RELA
Jan Beulichbfc390612011-03-01 11:14:55 +000033
Al Viro41984262008-08-23 17:00:34 -040034config RWSEM_XCHGADD_ALGORITHM
H. Peter Anvin7ac468b2012-11-28 11:50:25 -080035 def_bool 64BIT
Al Viro41984262008-08-23 17:00:34 -040036
37config RWSEM_GENERIC_SPINLOCK
Richard Weinberger3a367902011-05-23 22:51:33 +020038 def_bool !RWSEM_XCHGADD_ALGORITHM
Linus Torvalds1da177e2005-04-16 15:20:36 -070039
Linus Torvalds1da177e2005-04-16 15:20:36 -070040config 3_LEVEL_PGTABLES
Al Viro41984262008-08-23 17:00:34 -040041 bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
42 default 64BIT
Paolo 'Blaisorblade' Giarrussoce2d2ae2006-01-18 17:42:59 -080043 depends on EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -070044 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
Paolo 'Blaisorblade' Giarrussoce2d2ae2006-01-18 17:42:59 -080049 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070052config ARCH_HAS_SC_SIGNALS
Al Viro41984262008-08-23 17:00:34 -040053 def_bool !64BIT
Linus Torvalds1da177e2005-04-16 15:20:36 -070054
55config ARCH_REUSE_HOST_VSYSCALL_AREA
Al Viro41984262008-08-23 17:00:34 -040056 def_bool !64BIT
57
Akinobu Mitaf214ef32006-03-26 01:38:59 -080058config GENERIC_HWEIGHT
Al Viro41984262008-08-23 17:00:34 -040059 def_bool y
Al Viro61bee202008-08-25 04:51:27 -040060
61source "arch/um/Kconfig.um"
62
63endmenu
64
65source "arch/um/Kconfig.rest"