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1 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2001-2004 Jakub Jermar |
1 | jermar | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1888 | jermar | 29 | /** @addtogroup ia32mm |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | * @ingroup ia32mm, amd64mm |
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34 | */ |
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35 | |||
1 | jermar | 36 | #include <mm/frame.h> |
37 | #include <arch/mm/frame.h> |
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703 | jermar | 38 | #include <mm/as.h> |
1 | jermar | 39 | #include <config.h> |
267 | decky | 40 | #include <arch/boot/boot.h> |
139 | cejka | 41 | #include <arch/boot/memmap.h> |
368 | jermar | 42 | #include <panic.h> |
533 | bondari | 43 | #include <debug.h> |
540 | jermar | 44 | #include <align.h> |
814 | palkovsky | 45 | #include <macros.h> |
1 | jermar | 46 | |
814 | palkovsky | 47 | #include <print.h> |
48 | #include <console/cmd.h> |
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49 | #include <console/kconsole.h> |
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50 | |||
267 | decky | 51 | size_t hardcoded_unmapped_ktext_size = 0; |
52 | size_t hardcoded_unmapped_kdata_size = 0; |
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139 | cejka | 53 | |
1780 | jermar | 54 | uintptr_t last_frame = 0; |
540 | jermar | 55 | |
814 | palkovsky | 56 | static void init_e820_memory(pfn_t minconf) |
57 | { |
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58 | int i; |
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820 | jermar | 59 | pfn_t start, conf; |
60 | size_t size; |
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814 | palkovsky | 61 | |
62 | for (i = 0; i < e820counter; i++) { |
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63 | if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) { |
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2697 | decky | 64 | start = ADDR2PFN(ALIGN_UP(e820table[i].base_address, FRAME_SIZE)); |
65 | size = SIZE2FRAMES(ALIGN_DOWN(e820table[i].size, FRAME_SIZE)); |
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66 | if ((minconf < start) || (minconf >= start + size)) |
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814 | palkovsky | 67 | conf = start; |
68 | else |
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69 | conf = minconf; |
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820 | jermar | 70 | zone_create(start, size, conf, 0); |
814 | palkovsky | 71 | if (last_frame < ALIGN_UP(e820table[i].base_address + e820table[i].size, FRAME_SIZE)) |
72 | last_frame = ALIGN_UP(e820table[i].base_address + e820table[i].size, FRAME_SIZE); |
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73 | } |
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74 | } |
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75 | } |
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76 | |||
77 | static int cmd_e820mem(cmd_arg_t *argv); |
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78 | static cmd_info_t e820_info = { |
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79 | .name = "e820list", |
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80 | .description = "List e820 memory.", |
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81 | .func = cmd_e820mem, |
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82 | .argc = 0 |
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83 | }; |
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84 | |||
85 | static char *e820names[] = { "invalid", "available", "reserved", |
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86 | "acpi", "nvs", "unusable" }; |
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87 | |||
88 | |||
89 | static int cmd_e820mem(cmd_arg_t *argv) |
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90 | { |
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91 | int i; |
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92 | char *name; |
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93 | |||
94 | for (i = 0; i < e820counter; i++) { |
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95 | if (e820table[i].type <= MEMMAP_MEMORY_UNUSABLE) |
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96 | name = e820names[e820table[i].type]; |
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97 | else |
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98 | name = "invalid"; |
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1224 | cejka | 99 | printf("%.*p %#.16llXB %s\n", |
1780 | jermar | 100 | sizeof(unative_t) * 2, |
101 | (unative_t) e820table[i].base_address, |
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102 | (uint64_t) e820table[i].size, |
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814 | palkovsky | 103 | name); |
104 | } |
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105 | return 0; |
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106 | } |
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107 | |||
108 | |||
1 | jermar | 109 | void frame_arch_init(void) |
110 | { |
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814 | palkovsky | 111 | static pfn_t minconf; |
2697 | decky | 112 | |
1 | jermar | 113 | if (config.cpu_active == 1) { |
814 | palkovsky | 114 | cmd_initialize(&e820_info); |
115 | cmd_register(&e820_info); |
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533 | bondari | 116 | |
814 | palkovsky | 117 | minconf = 1; |
118 | #ifdef CONFIG_SMP |
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119 | minconf = max(minconf, |
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2697 | decky | 120 | ADDR2PFN(AP_BOOT_OFFSET + hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size)); |
814 | palkovsky | 121 | #endif |
122 | #ifdef CONFIG_SIMICS_FIX |
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123 | minconf = max(minconf, ADDR2PFN(0x10000)); |
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124 | #endif |
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125 | init_e820_memory(minconf); |
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126 | |||
533 | bondari | 127 | /* Reserve frame 0 (BIOS data) */ |
814 | palkovsky | 128 | frame_mark_unavailable(0, 1); |
533 | bondari | 129 | |
693 | decky | 130 | #ifdef CONFIG_SMP |
131 | /* Reserve AP real mode bootstrap memory */ |
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814 | palkovsky | 132 | frame_mark_unavailable(AP_BOOT_OFFSET >> FRAME_WIDTH, |
2697 | decky | 133 | (hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size) >> FRAME_WIDTH); |
778 | palkovsky | 134 | |
135 | #ifdef CONFIG_SIMICS_FIX |
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1793 | jermar | 136 | /* Don't know why, but these addresses help */ |
2697 | decky | 137 | frame_mark_unavailable(0xd000 >> FRAME_WIDTH, 3); |
693 | decky | 138 | #endif |
778 | palkovsky | 139 | #endif |
1 | jermar | 140 | } |
141 | } |
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1702 | cejka | 142 | |
1888 | jermar | 143 | /** @} |
1702 | cejka | 144 | */ |