Paolo 'Blaisorblade' Giarrusso | 8597737 | 2005-11-13 16:07:06 -0800 | [diff] [blame] | 1 | menu "Host processor type and features" |
| 2 | |
| 3 | source "arch/i386/Kconfig.cpu" |
| 4 | |
| 5 | endmenu |
| 6 | |
Paolo 'Blaisorblade' Giarrusso | c45166be3 | 2005-05-01 08:58:54 -0700 | [diff] [blame] | 7 | config UML_X86 |
| 8 | bool |
| 9 | default y |
| 10 | |
| 11 | config 64BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | bool |
| 13 | default n |
| 14 | |
Benjamin LaHaise | 52fdd08 | 2005-09-03 15:56:52 -0700 | [diff] [blame] | 15 | config SEMAPHORE_SLEEPERS |
| 16 | bool |
| 17 | default y |
| 18 | |
Joris van Rantwijk | 893bb96 | 2006-05-01 12:15:56 -0700 | [diff] [blame] | 19 | config HOST_2G_2G |
| 20 | bool "2G/2G host address space split" |
| 21 | default n |
| 22 | help |
| 23 | This is needed when the host on which you run has a 2G/2G memory |
| 24 | split, instead of the customary 3G/1G. |
| 25 | |
| 26 | Note that to enable such a host |
| 27 | configuration, which makes sense only in some cases, you need special |
| 28 | host patches. |
| 29 | |
| 30 | So, if you do not know what to do here, say 'N'. |
| 31 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | config TOP_ADDR |
| 33 | hex |
| 34 | default 0xc0000000 if !HOST_2G_2G |
| 35 | default 0x80000000 if HOST_2G_2G |
| 36 | |
| 37 | config 3_LEVEL_PGTABLES |
Paolo 'Blaisorblade' Giarrusso | ce2d2ae | 2006-01-18 17:42:59 -0800 | [diff] [blame] | 38 | bool "Three-level pagetables (EXPERIMENTAL)" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | default n |
Paolo 'Blaisorblade' Giarrusso | ce2d2ae | 2006-01-18 17:42:59 -0800 | [diff] [blame] | 40 | depends on EXPERIMENTAL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | 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' Giarrusso | ce2d2ae | 2006-01-18 17:42:59 -0800 | [diff] [blame] | 46 | 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 | |
Jeff Dike | d67b569 | 2005-07-07 17:56:49 -0700 | [diff] [blame] | 49 | config STUB_CODE |
| 50 | hex |
Joris van Rantwijk | 893bb96 | 2006-05-01 12:15:56 -0700 | [diff] [blame] | 51 | default 0xbfffe000 if !HOST_2G_2G |
| 52 | default 0x7fffe000 if HOST_2G_2G |
Jeff Dike | d67b569 | 2005-07-07 17:56:49 -0700 | [diff] [blame] | 53 | |
| 54 | config STUB_DATA |
| 55 | hex |
Joris van Rantwijk | 893bb96 | 2006-05-01 12:15:56 -0700 | [diff] [blame] | 56 | default 0xbffff000 if !HOST_2G_2G |
| 57 | default 0x7ffff000 if HOST_2G_2G |
Jeff Dike | d67b569 | 2005-07-07 17:56:49 -0700 | [diff] [blame] | 58 | |
| 59 | config STUB_START |
| 60 | hex |
| 61 | default STUB_CODE |
| 62 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | config ARCH_HAS_SC_SIGNALS |
| 64 | bool |
| 65 | default y |
| 66 | |
| 67 | config ARCH_REUSE_HOST_VSYSCALL_AREA |
| 68 | bool |
| 69 | default y |
Akinobu Mita | f214ef3 | 2006-03-26 01:38:59 -0800 | [diff] [blame] | 70 | |
| 71 | config GENERIC_HWEIGHT |
| 72 | bool |
| 73 | default y |
| 74 | |