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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
| 14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | #include <mm/frame.h> |
29 | #include <mm/frame.h> |
| 30 | #include <arch/mm/frame.h> |
30 | #include <arch/mm/frame.h> |
| 31 | #include <mm/vm.h> |
31 | #include <mm/vm.h> |
| 32 | #include <config.h> |
32 | #include <config.h> |
| - | 33 | #include <arch/boot/boot.h> |
|
| 33 | #include <arch/boot/memmap.h> |
34 | #include <arch/boot/memmap.h> |
| 34 | 35 | ||
| 35 | #include <print.h> |
36 | size_t hardcoded_unmapped_ktext_size = 0; |
| - | 37 | size_t hardcoded_unmapped_kdata_size = 0; |
|
| 36 | 38 | ||
| 37 | void frame_arch_init(void) |
39 | void frame_arch_init(void) |
| 38 | { |
40 | { |
| 39 | __u8 i; |
41 | __u8 i; |
| 40 | 42 | ||
| 41 | if (config.cpu_active == 1) { |
43 | if (config.cpu_active == 1) { |
| - | 44 | /* Reserve the NULL frame */ |
|
| 42 | frame_not_free(0x0); |
45 | frame_not_free(0x0); |
| 43 | 46 | ||
| - | 47 | /* Reserve well-known memory regions */ |
|
| 44 | frame_region_not_free(0xa0000,0xff000); |
48 | frame_region_not_free(0xa0000,0xff000); |
| 45 | frame_region_not_free(0xfec00000,0xffffffff); |
49 | frame_region_not_free(0xfec00000,0xffffffff); |
| 46 | 50 | ||
| 47 | /* This is a nasty hack, which should be fixed soon */ |
51 | /* Reserve real mode bootstrap memory */ |
| 48 | frame_region_not_free(0x0, 0xfffff); |
52 | frame_region_not_free(BOOTSTRAP_OFFSET, BOOTSTRAP_OFFSET + hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size); |
| 49 | 53 | ||
| 50 | for (i=e820counter;i>0;i--) { |
54 | for (i=e820counter;i>0;i--) { |
| 51 | if (e820table[i-1].type!=MEMMAP_MEMORY_AVAILABLE) { |
55 | if (e820table[i-1].type!=MEMMAP_MEMORY_AVAILABLE) { |
| 52 | frame_region_not_free(e820table[i-1].base_address, e820table[i-1].base_address+e820table[i-1].size); |
56 | frame_region_not_free(e820table[i-1].base_address, e820table[i-1].base_address+e820table[i-1].size); |
| 53 | } |
57 | } |
| 54 | } |
58 | } |
| 55 | } |
59 | } |
| 56 | } |
60 | } |
| 57 | 61 | ||