Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) |
| 3 | * Licensed under the GPL |
| 4 | */ |
| 5 | |
| 6 | #include "linux/stddef.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | #include "linux/mm.h" |
| 8 | #include "asm/uaccess.h" |
| 9 | #include "mem_user.h" |
| 10 | #include "kern_util.h" |
| 11 | #include "user_util.h" |
| 12 | #include "kern.h" |
| 13 | #include "tt.h" |
| 14 | |
| 15 | void before_mem_tt(unsigned long brk_start) |
| 16 | { |
| 17 | if(debug) |
| 18 | remap_data(UML_ROUND_DOWN(&_stext), UML_ROUND_UP(&_etext), 1); |
| 19 | remap_data(UML_ROUND_DOWN(&_sdata), UML_ROUND_UP(&_edata), 1); |
| 20 | remap_data(UML_ROUND_DOWN(&__bss_start), UML_ROUND_UP(&_end), 1); |
| 21 | } |
| 22 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #define SIZE ((CONFIG_NEST_LEVEL + CONFIG_KERNEL_HALF_GIGS) * 0x20000000) |
Bodo Stroesser | 1f3be58 | 2005-05-06 21:30:52 -0700 | [diff] [blame] | 24 | #define START (CONFIG_TOP_ADDR - SIZE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | |
Jeff Dike | 23bbd58 | 2006-07-10 04:45:06 -0700 | [diff] [blame] | 26 | unsigned long set_task_sizes_tt(unsigned long *task_size_out) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | { |
Jeff Dike | 23bbd58 | 2006-07-10 04:45:06 -0700 | [diff] [blame] | 28 | unsigned long host_task_size; |
| 29 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | /* Round up to the nearest 4M */ |
Jeff Dike | 23bbd58 | 2006-07-10 04:45:06 -0700 | [diff] [blame] | 31 | host_task_size = ROUND_4M((unsigned long) &host_task_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | *task_size_out = START; |
Jeff Dike | 23bbd58 | 2006-07-10 04:45:06 -0700 | [diff] [blame] | 33 | |
| 34 | return host_task_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | } |