| Paolo 'Blaisorblade' Giarrusso | 8597737 | 2005-11-13 16:07:06 -0800 | [diff] [blame] | 1 | menu "Host processor type and features" |
| 2 | |
| Al Viro | 7a78a17 | 2007-10-29 04:34:31 +0000 | [diff] [blame] | 3 | source "arch/x86/Kconfig.cpu" |
| Paolo 'Blaisorblade' Giarrusso | 8597737 | 2005-11-13 16:07:06 -0800 | [diff] [blame] | 4 | |
| 5 | endmenu |
| 6 | |
| Paolo 'Blaisorblade' Giarrusso | c45166be3 | 2005-05-01 08:58:54 -0700 | [diff] [blame] | 7 | config UML_X86 |
| Jeff Dike | 54d67ee | 2007-12-01 12:16:28 -0800 | [diff] [blame] | 8 | def_bool y |
| 9 | |
| Paolo 'Blaisorblade' Giarrusso | c45166be3 | 2005-05-01 08:58:54 -0700 | [diff] [blame] | 10 | config 64BIT |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | bool |
| Al Viro | 4198426 | 2008-08-23 17:00:34 -0400 | [diff] [blame^] | 12 | default SUBARCH = "x86_64" |
| 13 | |
| 14 | config X86_32 |
| 15 | def_bool !64BIT |
| 16 | select HAVE_AOUT |
| 17 | |
| 18 | config RWSEM_XCHGADD_ALGORITHM |
| 19 | def_bool X86_XADD |
| 20 | |
| 21 | config RWSEM_GENERIC_SPINLOCK |
| 22 | def_bool !X86_XADD |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | config 3_LEVEL_PGTABLES |
| Al Viro | 4198426 | 2008-08-23 17:00:34 -0400 | [diff] [blame^] | 25 | bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT |
| 26 | default 64BIT |
| Paolo 'Blaisorblade' Giarrusso | ce2d2ae | 2006-01-18 17:42:59 -0800 | [diff] [blame] | 27 | depends on EXPERIMENTAL |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | help |
| 29 | Three-level pagetables will let UML have more than 4G of physical |
| 30 | memory. All the memory that can't be mapped directly will be treated |
| 31 | as high memory. |
| 32 | |
| Paolo 'Blaisorblade' Giarrusso | ce2d2ae | 2006-01-18 17:42:59 -0800 | [diff] [blame] | 33 | However, this it experimental on 32-bit architectures, so if unsure say |
| 34 | N (on x86-64 it's automatically enabled, instead, as it's safe there). |
| 35 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | config ARCH_HAS_SC_SIGNALS |
| Al Viro | 4198426 | 2008-08-23 17:00:34 -0400 | [diff] [blame^] | 37 | def_bool !64BIT |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
| 39 | config ARCH_REUSE_HOST_VSYSCALL_AREA |
| Al Viro | 4198426 | 2008-08-23 17:00:34 -0400 | [diff] [blame^] | 40 | def_bool !64BIT |
| 41 | |
| 42 | config SMP_BROKEN |
| 43 | def_bool 64BIT |
| Akinobu Mita | f214ef3 | 2006-03-26 01:38:59 -0800 | [diff] [blame] | 44 | |
| 45 | config GENERIC_HWEIGHT |
| Al Viro | 4198426 | 2008-08-23 17:00:34 -0400 | [diff] [blame^] | 46 | def_bool y |