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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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164 | serge | 7 | |
593 | mikedld | 8 | $Revision: 861 $ |
9 | |||
10 | |||
164 | serge | 11 | align 4 |
12 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
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321 | diamond | 13 | push ebx |
164 | serge | 14 | mov eax, [phis_addr] |
15 | and eax, not 0xFFF |
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16 | or eax, [flags] |
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17 | mov ebx, [lin_addr] |
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18 | shr ebx, 12 |
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365 | serge | 19 | mov [page_tabs+ebx*4], eax |
164 | serge | 20 | mov eax, [lin_addr] |
21 | invlpg [eax] |
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321 | diamond | 22 | pop ebx |
164 | serge | 23 | ret |
24 | endp |
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25 | |||
26 | align 4 |
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281 | serge | 27 | map_space: ;not implemented |
28 | |||
29 | |||
30 | ret |
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31 | |||
32 | |||
33 | align 4 |
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861 | serge | 34 | free_page: |
843 | serge | 35 | |
164 | serge | 36 | ret |
37 | |||
741 | serge | 38 | proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
39 | |||
40 | push ebx |
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41 | push edi |
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42 | mov eax, [size] |
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43 | add eax, 4095 |
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44 | and eax, -4096 |
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45 | mov [size], eax |
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46 | stdcall alloc_kernel_space, eax |
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47 | test eax, eax |
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48 | jz .fail |
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49 | push eax |
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50 | |||
51 | mov edi, 0x1000 |
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52 | mov ebx, eax |
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53 | mov ecx,[size] |
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54 | mov edx, [base] |
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55 | shr eax, 12 |
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56 | shr ecx, 12 |
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57 | and edx, -4096 |
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58 | or edx, [flags] |
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59 | @@: |
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60 | mov [page_tabs+eax*4], edx |
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819 | serge | 61 | ; push eax |
62 | ; invlpg [ebx] |
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63 | ; pop eax |
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741 | serge | 64 | inc eax |
65 | add ebx, edi |
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66 | add edx, edi |
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67 | loop @B |
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68 | |||
69 | pop eax |
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70 | mov edx, [base] |
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71 | and edx, 4095 |
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72 | add eax, edx |
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73 | .fail: |
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74 | pop edi |
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75 | pop ebx |
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76 | ret |
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77 | endp |
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78 | |||
279 | serge | 79 | ; param |
328 | serge | 80 | ; eax= page base + page flags |
819 | serge | 81 | ; ebx= linear address |
281 | serge | 82 | ; ecx= count |
83 | |||
84 | align 4 |
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328 | serge | 85 | commit_pages: |
741 | serge | 86 | push edi |
328 | serge | 87 | test ecx, ecx |
88 | jz .fail |
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281 | serge | 89 | |
328 | serge | 90 | mov edi, ebx |
91 | mov ebx, pg_data.pg_mutex |
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92 | call wait_mutex ;ebx |
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93 | |||
94 | mov edx, 0x1000 |
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95 | mov ebx, edi |
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96 | shr ebx, 12 |
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97 | @@: |
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365 | serge | 98 | mov [page_tabs+ebx*4], eax |
819 | serge | 99 | ; push eax |
100 | ; invlpg [edi] |
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101 | ; pop eax |
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328 | serge | 102 | add edi, edx |
103 | add eax, edx |
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104 | inc ebx |
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105 | dec ecx |
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106 | jnz @B |
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107 | mov [pg_data.pg_mutex],ecx |
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108 | .fail: |
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741 | serge | 109 | pop edi |
281 | serge | 110 | ret |
111 | |||
328 | serge | 112 | |
281 | serge | 113 | ; param |
279 | serge | 114 | ; eax= base |
281 | serge | 115 | ; ecx= count |
279 | serge | 116 | |
164 | serge | 117 | align 4 |
279 | serge | 118 | release_pages: |
321 | diamond | 119 | |
120 | pushad |
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279 | serge | 121 | mov ebx, pg_data.pg_mutex |
122 | call wait_mutex ;ebx |
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123 | |||
124 | mov esi, eax |
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125 | mov edi, eax |
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126 | |||
127 | shr esi, 10 |
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365 | serge | 128 | add esi, page_tabs |
328 | serge | 129 | |
279 | serge | 130 | @@: |
131 | xor eax, eax |
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132 | xchg eax, [esi] |
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837 | serge | 133 | push eax |
279 | serge | 134 | invlpg [edi] |
837 | serge | 135 | pop eax |
279 | serge | 136 | .next: |
137 | add edi, 0x1000 |
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138 | add esi, 4 |
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139 | dec ecx |
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140 | jnz @B |
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141 | and [pg_data.pg_mutex],0 |
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321 | diamond | 142 | popad |
279 | serge | 143 | ret |
144 | |||
819 | serge | 145 | ; param |
146 | ; eax= base |
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147 | ; ecx= count |
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148 | |||
279 | serge | 149 | align 4 |
819 | serge | 150 | unmap_pages: |
151 | |||
152 | push edi |
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153 | |||
154 | mov edi, eax |
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155 | mov edx, eax |
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156 | |||
157 | shr edi, 10 |
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158 | add edi, page_tabs |
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159 | |||
160 | xor eax, eax |
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161 | @@: |
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162 | stosd |
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163 | invlpg [edx] |
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164 | add edx, 0x1000 |
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165 | loop @b |
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166 | |||
167 | pop edi |
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168 | ret |
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169 | |||
170 | |||
171 | align 4 |
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188 | serge | 172 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
321 | diamond | 173 | push ebx |
164 | serge | 174 | mov ebx, [lin_addr] |
175 | shr ebx, 22 |
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176 | mov eax, [phis_addr] |
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177 | and eax, not 0xFFF |
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178 | or eax, PG_UW ;+PG_NOCACHE |
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378 | serge | 179 | mov dword [master_tab+ebx*4], eax |
164 | serge | 180 | mov eax, [lin_addr] |
181 | shr eax, 10 |
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365 | serge | 182 | add eax, page_tabs |
164 | serge | 183 | invlpg [eax] |
321 | diamond | 184 | pop ebx |
164 | serge | 185 | ret |
186 | endp |
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187 | |||
188 | align 4 |
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189 | proc init_LFB |
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378 | serge | 190 | locals |
191 | pg_count dd ? |
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192 | endl |
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193 | |||
164 | serge | 194 | cmp dword [LFBAddress], -1 |
195 | jne @f |
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412 | serge | 196 | mov [BOOT_VAR+0x901c],byte 2 |
854 | serge | 197 | stdcall _alloc_pages, 0x280000 shr 12 |
839 | serge | 198 | add eax, OS_BASE |
164 | serge | 199 | mov [LFBAddress], eax |
200 | ret |
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201 | @@: |
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202 | test [SCR_MODE],word 0100000000000000b |
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211 | serge | 203 | jnz @f |
412 | serge | 204 | mov [BOOT_VAR+0x901c],byte 2 |
211 | serge | 205 | ret |
206 | @@: |
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490 | serge | 207 | call init_mtrr |
208 | |||
839 | serge | 209 | mov eax, [LFBAddress] |
210 | or eax, PG_LARGE+PG_UW |
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848 | serge | 211 | mov [_sys_pdbr+(LFB_BASE shr 20)], eax |
839 | serge | 212 | add eax, 0x00400000 |
848 | serge | 213 | mov [_sys_pdbr+4+(LFB_BASE shr 20)], eax |
164 | serge | 214 | |
839 | serge | 215 | mov dword [exp_lfb+4], LFB_BASE |
164 | serge | 216 | |
207 | serge | 217 | bt [cpu_caps], CAPS_PGE |
218 | jnc @F |
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848 | serge | 219 | or dword [_sys_pdbr+(LFB_BASE shr 20)], PG_GLOBAL |
207 | serge | 220 | @@: |
378 | serge | 221 | mov dword [LFBAddress], LFB_BASE |
164 | serge | 222 | mov eax, cr3 ;flush TLB |
223 | mov cr3, eax |
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224 | |||
225 | ret |
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226 | endp |
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227 | |||
228 | align 4 |
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229 | proc new_mem_resize stdcall, new_size:dword |
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230 | |||
276 | serge | 231 | mov ebx, pg_data.pg_mutex |
232 | call wait_mutex ;ebx |
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164 | serge | 233 | |
234 | mov edi, [new_size] |
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235 | add edi,4095 |
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236 | and edi,not 4095 |
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237 | mov [new_size], edi |
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238 | |||
465 | serge | 239 | mov edx,[current_slot] |
240 | cmp [edx+APPDATA.heap_base],0 |
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172 | serge | 241 | jne .exit |
242 | |||
465 | serge | 243 | mov esi, [edx+APPDATA.mem_size] |
164 | serge | 244 | add esi, 4095 |
245 | and esi, not 4095 |
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246 | |||
247 | cmp edi, esi |
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248 | jae .expand |
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249 | |||
250 | shr edi, 12 |
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251 | shr esi, 12 |
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252 | @@: |
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378 | serge | 253 | mov eax, [app_page_tabs+edi*4] |
164 | serge | 254 | test eax, 1 |
255 | jz .next |
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378 | serge | 256 | mov dword [app_page_tabs+edi*4], 2 |
164 | serge | 257 | mov ebx, edi |
258 | shl ebx, 12 |
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837 | serge | 259 | push eax |
659 | serge | 260 | invlpg [ebx] |
837 | serge | 261 | pop eax |
164 | serge | 262 | call free_page |
263 | |||
264 | .next: add edi, 1 |
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265 | cmp edi, esi |
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266 | jb @B |
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267 | |||
268 | .update_size: |
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465 | serge | 269 | mov ebx, [new_size] |
270 | call update_mem_size |
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164 | serge | 271 | |
272 | xor eax, eax |
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273 | dec [pg_data.pg_mutex] |
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274 | ret |
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275 | .expand: |
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276 | |||
277 | push esi |
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278 | push edi |
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279 | |||
280 | add edi, 0x3FFFFF |
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281 | and edi, not(0x3FFFFF) |
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282 | add esi, 0x3FFFFF |
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283 | and esi, not(0x3FFFFF) |
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284 | |||
285 | cmp esi, edi |
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286 | jae .grow |
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287 | |||
288 | xchg esi, edi |
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289 | |||
290 | @@: |
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854 | serge | 291 | call _alloc_page |
164 | serge | 292 | test eax, eax |
293 | jz .exit |
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294 | |||
188 | serge | 295 | stdcall map_page_table, edi, eax |
164 | serge | 296 | |
297 | push edi |
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298 | shr edi, 10 |
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365 | serge | 299 | add edi, page_tabs |
164 | serge | 300 | mov ecx, 1024 |
301 | xor eax, eax |
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302 | cld |
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303 | rep stosd |
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304 | pop edi |
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305 | |||
306 | add edi, 0x00400000 |
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307 | cmp edi, esi |
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308 | jb @B |
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309 | .grow: |
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310 | pop edi |
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311 | pop esi |
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312 | @@: |
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854 | serge | 313 | call _alloc_page |
164 | serge | 314 | test eax, eax |
315 | jz .exit |
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316 | stdcall map_page,esi,eax,dword PG_UW |
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317 | |||
318 | push edi |
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319 | mov edi, esi |
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320 | xor eax, eax |
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321 | mov ecx, 1024 |
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322 | cld |
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323 | rep stosd |
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324 | pop edi |
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325 | |||
326 | add esi, 0x1000 |
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327 | cmp esi, edi |
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294 | diamond | 328 | jb @B |
164 | serge | 329 | |
330 | jmp .update_size |
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331 | .exit: |
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332 | xor eax, eax |
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333 | inc eax |
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334 | dec [pg_data.pg_mutex] |
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335 | ret |
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336 | endp |
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337 | |||
294 | diamond | 338 | update_mem_size: |
465 | serge | 339 | ; in: edx = slot base |
294 | diamond | 340 | ; ebx = new memory size |
341 | ; destroys eax,ecx,edx |
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342 | |||
465 | serge | 343 | mov [APPDATA.mem_size+edx],ebx |
294 | diamond | 344 | ;search threads and update |
345 | ;application memory size infomation |
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465 | serge | 346 | mov ecx,[APPDATA.dir_table+edx] |
294 | diamond | 347 | mov eax,2 |
348 | |||
349 | .search_threads: |
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350 | ;eax = current slot |
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351 | ;ebx = new memory size |
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352 | ;ecx = page directory |
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353 | cmp eax,[TASK_COUNT] |
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354 | jg .search_threads_end |
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355 | mov edx,eax |
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356 | shl edx,5 |
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357 | cmp word [CURRENT_TASK+edx+TASKDATA.state],9 ;if slot empty? |
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358 | jz .search_threads_next |
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359 | shl edx,3 |
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380 | serge | 360 | cmp [SLOT_BASE+edx+APPDATA.dir_table],ecx ;if it is our thread? |
294 | diamond | 361 | jnz .search_threads_next |
380 | serge | 362 | mov [SLOT_BASE+edx+APPDATA.mem_size],ebx ;update memory size |
294 | diamond | 363 | .search_threads_next: |
364 | inc eax |
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365 | jmp .search_threads |
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366 | .search_threads_end: |
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367 | ret |
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368 | |||
285 | serge | 369 | ; param |
370 | ; eax= linear address |
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371 | ; |
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372 | ; retval |
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373 | ; eax= phisical page address |
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374 | |||
164 | serge | 375 | align 4 |
285 | serge | 376 | get_pg_addr: |
377 | shr eax, 12 |
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365 | serge | 378 | mov eax, [page_tabs+eax*4] |
164 | serge | 379 | and eax, 0xFFFFF000 |
380 | ret |
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381 | |||
465 | serge | 382 | |
188 | serge | 383 | align 4 |
164 | serge | 384 | proc page_fault_handler |
465 | serge | 385 | |
709 | diamond | 386 | test byte [esp+12+2], 2 |
387 | jnz v86_page_fault |
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388 | |||
465 | serge | 389 | .err_code equ ebp+32 |
390 | .err_addr equ ebp-4 |
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391 | |||
164 | serge | 392 | pushad |
393 | mov ebp, esp |
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394 | mov eax, cr2 |
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172 | serge | 395 | push eax |
164 | serge | 396 | |
465 | serge | 397 | mov ax, app_data |
164 | serge | 398 | mov ds, ax |
188 | serge | 399 | mov es, ax |
164 | serge | 400 | |
188 | serge | 401 | inc [pg_data.pages_faults] |
402 | |||
465 | serge | 403 | mov ebx, [.err_addr] |
404 | mov eax, [.err_code] |
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164 | serge | 405 | |
839 | serge | 406 | cmp ebx, HEAP_BASE |
465 | serge | 407 | jb .user_space ;ñòðàíèöà â ïàìÿòè ïðèëîæåíèÿ ; |
188 | serge | 408 | |
839 | serge | 409 | cmp ebx, LFB_BASE |
410 | jb .kernel_heap |
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411 | |||
378 | serge | 412 | cmp ebx, page_tabs |
839 | serge | 413 | jb .lfb |
164 | serge | 414 | |
861 | serge | 415 | cmp ebx, heap_tabs |
416 | jb .user_tabs |
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417 | |||
839 | serge | 418 | cmp ebx, OS_BASE |
861 | serge | 419 | jb .heap_tab |
839 | serge | 420 | |
421 | |||
422 | ; cmp ebx, kernel_tabs |
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423 | ; jb .alloc;.app_tabs ;òàáëèöû ñòðàíèö ïðèëîæåíèÿ ; |
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465 | serge | 424 | ;ïðîñòî ñîçäàäèì îäíó |
378 | serge | 425 | |
861 | serge | 426 | |
427 | |||
465 | serge | 428 | .lfb: |
839 | serge | 429 | shr ebx, 22 |
848 | serge | 430 | mov edx, [_sys_pdbr + ebx*4] |
839 | serge | 431 | mov [master_tab + ebx*4], edx |
432 | jmp .exit |
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164 | serge | 433 | |
861 | serge | 434 | .user_tabs: |
435 | shr ebx, 12 |
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436 | and ebx, 0x3FF |
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437 | mov edx, [master_tab + ebx*4] |
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438 | test edx, PG_MAP |
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439 | jnz .fail |
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839 | serge | 440 | |
861 | serge | 441 | call _alloc_page |
442 | test eax, eax |
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443 | jz .fail |
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444 | |||
445 | lea edx, [eax + PG_UW] |
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446 | lea edi, [eax + OS_BASE] |
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447 | mov ecx, 1024 |
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448 | xor eax, eax |
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449 | cld |
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450 | rep stosd |
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451 | |||
452 | mov [master_tab + ebx*4], edx |
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453 | jmp .exit |
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454 | |||
455 | .heap_tab: |
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839 | serge | 456 | shr ebx, 12 |
457 | and ebx, 0x3FF |
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458 | mov edx, [master_tab + ebx*4] |
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459 | test edx, PG_MAP |
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460 | jz .check_ptab ;òàáëèöà ñòðàíèö íå ñîçäàíà |
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461 | |||
861 | serge | 462 | jmp .fail |
463 | |||
464 | |||
465 | serge | 465 | align 4 |
839 | serge | 466 | .kernel_heap: |
467 | |||
468 | shr ebx, 22 |
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469 | mov edx, [master_tab + ebx*4] |
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470 | test edx, PG_MAP |
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471 | jz .check_ptab ;òàáëèöà ñòðàíèö íå ñîçäàíà |
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472 | |||
854 | serge | 473 | |
861 | serge | 474 | jmp .fail |
475 | |||
839 | serge | 476 | .check_ptab: |
848 | serge | 477 | mov edx, [_sys_pdbr + ebx*4] |
839 | serge | 478 | test edx, PG_MAP |
479 | jnz @F |
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480 | |||
854 | serge | 481 | call _alloc_page |
839 | serge | 482 | test eax, eax |
483 | jz .fail |
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484 | |||
485 | lea edx, [eax + PG_UW] |
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486 | lea edi, [eax + OS_BASE] |
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487 | mov ecx, 1024 |
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488 | xor eax, eax |
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489 | cld |
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490 | rep stosd |
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491 | |||
848 | serge | 492 | mov [_sys_pdbr + ebx*4], edx |
839 | serge | 493 | @@: |
494 | mov [master_tab + ebx*4], edx |
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495 | jmp .exit |
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496 | |||
497 | align 4 |
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164 | serge | 498 | .user_space: |
465 | serge | 499 | test eax, PG_MAP |
500 | jnz .err_access ;Ñòðàíèöà ïðèñóòñòâóåò |
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501 | ;Îøèáêà äîñòóïà ? |
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502 | |||
164 | serge | 503 | shr ebx, 12 |
172 | serge | 504 | mov ecx, ebx |
505 | shr ecx, 10 |
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839 | serge | 506 | mov edx, [master_tab + ecx*4] |
465 | serge | 507 | test edx, PG_MAP |
508 | jz .fail ;òàáëèöà ñòðàíèö íå ñîçäàíà |
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509 | ;íåâåðíûé àäðåñ â ïðîãðàììå |
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172 | serge | 510 | |
365 | serge | 511 | mov eax, [page_tabs+ebx*4] |
164 | serge | 512 | test eax, 2 |
465 | serge | 513 | jz .fail ;àäðåñ íå çàðåçåðâèðîâàí äëÿ ; |
514 | ;èñïîëüçîâàíèÿ. Îøèáêà |
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188 | serge | 515 | .alloc: |
854 | serge | 516 | call _alloc_page |
566 | serge | 517 | test eax, eax |
465 | serge | 518 | jz .fail |
164 | serge | 519 | |
520 | stdcall map_page,[ebp-4],eax,dword PG_UW |
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521 | |||
188 | serge | 522 | mov edi, [ebp-4] |
523 | and edi, 0xFFFFF000 |
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164 | serge | 524 | mov ecx, 1024 |
525 | xor eax, eax |
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188 | serge | 526 | cld |
527 | rep stosd |
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164 | serge | 528 | .exit: |
529 | mov esp, ebp |
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530 | popad |
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531 | add esp, 4 |
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532 | iretd |
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465 | serge | 533 | |
534 | .err_access: |
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535 | ;íèêîãäà íå ïðîèñõîäèò |
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536 | jmp .fail |
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537 | |||
538 | .kernel_space: |
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539 | test eax, PG_MAP |
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540 | jz .fail ;ñòðàíèöà íå ïðèñóòñòâóåò |
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541 | |||
542 | test eax, 4 ;U/S |
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543 | jnz .fail ;ïðèëîæåíèå îáðàòèëîñü ê ïàìÿòè |
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544 | ;ÿäðà |
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545 | test eax, 8 |
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546 | jnz .fail ;óñòàíîâëåí çàðåçåðâèðîâàííûé áèò |
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547 | ;â òàáëèöàõ ñòðàíèö. äîáàâëåíî â P4/Xeon |
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548 | |||
549 | ;ïîïûòêà çàïèñè â çàùèù¸ííóþ ñòðàíèöó ÿäðà |
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550 | |||
551 | cmp ebx, tss._io_map_0 |
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552 | jb .fail |
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553 | |||
554 | cmp ebx, tss._io_map_0+8192 |
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555 | jae .fail |
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556 | |||
557 | ; io permission map |
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558 | ; copy-on-write protection |
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559 | |||
854 | serge | 560 | call _alloc_page |
566 | serge | 561 | test eax, eax |
465 | serge | 562 | jz .fail |
563 | |||
564 | push eax |
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565 | stdcall map_page,[ebp-4],eax,dword PG_SW |
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566 | pop eax |
||
567 | mov edi, [.err_addr] |
||
568 | and edi, -4096 |
||
569 | lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0 |
||
570 | |||
571 | mov ebx, esi |
||
572 | shr ebx, 12 |
||
573 | mov edx, [current_slot] |
||
574 | or eax, PG_SW |
||
575 | mov [edx+APPDATA.io_map+ebx*4], eax |
||
576 | |||
577 | add esi, [default_io_map] |
||
578 | mov ecx, 4096/4 |
||
579 | cld |
||
580 | rep movsd |
||
581 | jmp .exit |
||
582 | |||
583 | |||
584 | ;íå îáðàáàòûâàåì. Îøèáêà |
||
585 | |||
172 | serge | 586 | .fail: |
587 | mov esp, ebp |
||
588 | popad |
||
589 | add esp, 4 |
||
164 | serge | 590 | |
465 | serge | 591 | ; iretd |
592 | |||
172 | serge | 593 | save_ring3_context ;debugger support |
594 | |||
595 | mov bl, 14 |
||
596 | jmp exc_c |
||
597 | iretd |
||
164 | serge | 598 | endp |
599 | |||
600 | align 4 |
||
601 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
||
602 | ofs:dword,buf_size:dword |
||
603 | mov eax, [buf_size] |
||
604 | test eax, eax |
||
605 | jz .exit |
||
606 | |||
607 | mov eax, [pdir] |
||
608 | and eax, 0xFFFFF000 |
||
609 | |||
536 | diamond | 610 | stdcall map_page,[ipc_pdir],eax,PG_UW |
164 | serge | 611 | mov ebx, [ofs] |
612 | shr ebx, 22 |
||
613 | mov esi, [ipc_pdir] |
||
614 | mov edi, [ipc_ptab] |
||
615 | mov eax, [esi+ebx*4] |
||
616 | and eax, 0xFFFFF000 |
||
617 | jz .exit |
||
536 | diamond | 618 | stdcall map_page,edi,eax,PG_UW |
164 | serge | 619 | ; inc ebx |
620 | ; add edi, 0x1000 |
||
621 | ; mov eax, [esi+ebx*4] |
||
622 | ; test eax, eax |
||
623 | ; jz @f |
||
624 | ; and eax, 0xFFFFF000 |
||
625 | ; stdcall map_page, edi, eax |
||
626 | |||
627 | @@: mov edi, [lin_addr] |
||
628 | and edi, 0xFFFFF000 |
||
629 | mov ecx, [buf_size] |
||
630 | add ecx, 4095 |
||
631 | shr ecx, 12 |
||
632 | inc ecx |
||
633 | |||
634 | mov edx, [ofs] |
||
635 | shr edx, 12 |
||
636 | and edx, 0x3FF |
||
637 | mov esi, [ipc_ptab] |
||
638 | |||
639 | .map: mov eax, [esi+edx*4] |
||
640 | and eax, 0xFFFFF000 |
||
536 | diamond | 641 | jz .exit |
642 | stdcall map_page,edi,eax,PG_UW |
||
643 | dec ecx |
||
644 | jz .exit |
||
164 | serge | 645 | add edi, 0x1000 |
646 | inc edx |
||
536 | diamond | 647 | cmp edx, 0x400 |
164 | serge | 648 | jnz .map |
536 | diamond | 649 | inc ebx |
650 | mov eax, [ipc_pdir] |
||
651 | mov eax, [eax+ebx*4] |
||
652 | and eax, 0xFFFFF000 |
||
653 | jz .exit |
||
654 | stdcall map_page,esi,eax,PG_UW |
||
655 | xor edx, edx |
||
656 | jmp .map |
||
164 | serge | 657 | |
658 | .exit: |
||
659 | ret |
||
660 | endp |
||
661 | |||
662 | align 4 |
||
663 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
||
664 | ofs:dword,buf_size:dword |
||
665 | mov eax, [buf_size] |
||
666 | test eax, eax |
||
667 | jz .exit |
||
668 | |||
669 | mov eax, [pdir] |
||
670 | and eax, 0xFFFFF000 |
||
671 | |||
672 | stdcall map_page,[proc_mem_pdir],eax,dword PG_UW |
||
673 | mov ebx, [ofs] |
||
674 | shr ebx, 22 |
||
675 | mov esi, [proc_mem_pdir] |
||
676 | mov edi, [proc_mem_tab] |
||
677 | mov eax, [esi+ebx*4] |
||
678 | and eax, 0xFFFFF000 |
||
679 | test eax, eax |
||
680 | jz .exit |
||
681 | stdcall map_page,edi,eax,dword PG_UW |
||
682 | |||
683 | @@: mov edi, [lin_addr] |
||
684 | and edi, 0xFFFFF000 |
||
685 | mov ecx, [buf_size] |
||
686 | add ecx, 4095 |
||
687 | shr ecx, 12 |
||
688 | inc ecx |
||
689 | |||
690 | mov edx, [ofs] |
||
691 | shr edx, 12 |
||
692 | and edx, 0x3FF |
||
693 | mov esi, [proc_mem_tab] |
||
694 | |||
695 | .map: mov eax, [esi+edx*4] |
||
696 | ; and eax, 0xFFFFF000 |
||
697 | ; test eax, eax |
||
698 | ; jz .exit |
||
699 | stdcall map_page,edi,eax,dword PG_UW |
||
700 | add edi, 0x1000 |
||
701 | inc edx |
||
702 | dec ecx |
||
703 | jnz .map |
||
704 | .exit: |
||
705 | ret |
||
706 | endp |
||
707 | |||
708 | |||
709 | |||
710 | |||
711 | sys_IPC: |
||
712 | ;input: |
||
713 | ; eax=1 - set ipc buffer area |
||
714 | ; ebx=address of buffer |
||
715 | ; ecx=size of buffer |
||
716 | ; eax=2 - send message |
||
717 | ; ebx=PID |
||
718 | ; ecx=address of message |
||
719 | ; edx=size of message |
||
720 | |||
721 | cmp eax,1 |
||
722 | jne @f |
||
723 | call set_ipc_buff |
||
724 | mov [esp+36], eax |
||
725 | ret |
||
726 | @@: |
||
727 | cmp eax, 2 |
||
728 | jne @f |
||
729 | stdcall sys_ipc_send, ebx, ecx, edx |
||
730 | mov [esp+36], eax |
||
731 | ret |
||
732 | @@: |
||
733 | xor eax, eax |
||
734 | not eax |
||
735 | mov [esp+36], eax |
||
736 | ret |
||
737 | |||
738 | align 4 |
||
739 | proc set_ipc_buff |
||
740 | |||
465 | serge | 741 | mov eax,[current_slot] |
164 | serge | 742 | pushf |
743 | cli |
||
465 | serge | 744 | mov [eax+APPDATA.ipc_start],ebx ;set fields in extended information area |
745 | mov [eax+APPDATA.ipc_size],ecx |
||
164 | serge | 746 | |
747 | add ecx, ebx |
||
748 | add ecx, 4095 |
||
749 | and ecx, not 4095 |
||
750 | |||
751 | .touch: mov eax, [ebx] |
||
752 | add ebx, 0x1000 |
||
753 | cmp ebx, ecx |
||
536 | diamond | 754 | jb .touch |
164 | serge | 755 | |
756 | popf |
||
757 | xor eax, eax |
||
758 | ret |
||
759 | endp |
||
760 | |||
761 | proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword |
||
762 | locals |
||
763 | dst_slot dd ? |
||
764 | dst_offset dd ? |
||
765 | buf_size dd ? |
||
536 | diamond | 766 | used_buf dd ? |
164 | serge | 767 | endl |
768 | |||
769 | pushf |
||
770 | cli |
||
771 | |||
772 | mov eax, [PID] |
||
773 | call pid_to_slot |
||
774 | test eax,eax |
||
775 | jz .no_pid |
||
776 | |||
777 | mov [dst_slot], eax |
||
778 | shl eax,8 |
||
380 | serge | 779 | mov edi,[eax+SLOT_BASE+0xa0] ;is ipc area defined? |
164 | serge | 780 | test edi,edi |
781 | jz .no_ipc_area |
||
782 | |||
783 | mov ebx, edi |
||
784 | and ebx, 0xFFF |
||
785 | mov [dst_offset], ebx |
||
786 | |||
380 | serge | 787 | mov esi, [eax+SLOT_BASE+0xa4] |
164 | serge | 788 | mov [buf_size], esi |
789 | |||
536 | diamond | 790 | mov ecx, [ipc_tmp] |
791 | cmp esi, 0x40000-0x1000 ; size of [ipc_tmp] minus one page |
||
792 | jbe @f |
||
793 | push eax esi edi |
||
794 | add esi,0x1000 |
||
795 | stdcall alloc_kernel_space,esi |
||
796 | mov ecx, eax |
||
797 | pop edi esi eax |
||
798 | @@: |
||
799 | mov [used_buf], ecx |
||
800 | stdcall map_mem, ecx, [SLOT_BASE+eax+0xB8],\ |
||
164 | serge | 801 | edi, esi |
802 | |||
803 | mov edi, [dst_offset] |
||
536 | diamond | 804 | add edi, [used_buf] |
164 | serge | 805 | cmp dword [edi], 0 |
806 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
227 | serge | 807 | |
566 | serge | 808 | mov edx, dword [edi+4] |
809 | lea ebx, [edx+8] |
||
164 | serge | 810 | add ebx, [msg_size] |
811 | cmp ebx, [buf_size] |
||
812 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
227 | serge | 813 | |
164 | serge | 814 | mov dword [edi+4], ebx |
815 | mov eax,[TASK_BASE] |
||
816 | mov eax, [eax+0x04] ;eax - our PID |
||
817 | add edi, edx |
||
818 | mov [edi], eax |
||
819 | mov ecx, [msg_size] |
||
820 | |||
821 | mov [edi+4], ecx |
||
822 | add edi, 8 |
||
823 | mov esi, [msg_addr] |
||
465 | serge | 824 | ; add esi, new_app_base |
164 | serge | 825 | cld |
826 | rep movsb |
||
827 | |||
828 | mov ebx, [ipc_tmp] |
||
829 | mov edx, ebx |
||
830 | shr ebx, 12 |
||
831 | xor eax, eax |
||
365 | serge | 832 | mov [page_tabs+ebx*4], eax |
164 | serge | 833 | invlpg [edx] |
834 | |||
835 | mov ebx, [ipc_pdir] |
||
836 | mov edx, ebx |
||
837 | shr ebx, 12 |
||
838 | xor eax, eax |
||
365 | serge | 839 | mov [page_tabs+ebx*4], eax |
164 | serge | 840 | invlpg [edx] |
841 | |||
842 | mov ebx, [ipc_ptab] |
||
843 | mov edx, ebx |
||
844 | shr ebx, 12 |
||
845 | xor eax, eax |
||
365 | serge | 846 | mov [page_tabs+ebx*4], eax |
164 | serge | 847 | invlpg [edx] |
848 | |||
849 | mov eax, [dst_slot] |
||
850 | shl eax, 8 |
||
380 | serge | 851 | or [eax+SLOT_BASE+0xA8],dword 0x40 |
164 | serge | 852 | cmp dword [check_idle_semaphore],20 |
853 | jge .ipc_no_cis |
||
854 | |||
855 | mov dword [check_idle_semaphore],5 |
||
856 | .ipc_no_cis: |
||
536 | diamond | 857 | push 0 |
858 | jmp .ret |
||
164 | serge | 859 | .no_pid: |
860 | popf |
||
536 | diamond | 861 | mov eax, 4 |
164 | serge | 862 | ret |
863 | .no_ipc_area: |
||
864 | popf |
||
865 | xor eax, eax |
||
866 | inc eax |
||
867 | ret |
||
868 | .ipc_blocked: |
||
536 | diamond | 869 | push 2 |
870 | jmp .ret |
||
164 | serge | 871 | .buffer_overflow: |
536 | diamond | 872 | push 3 |
873 | .ret: |
||
874 | mov eax, [used_buf] |
||
875 | cmp eax, [ipc_tmp] |
||
876 | jz @f |
||
877 | stdcall free_kernel_space,eax |
||
878 | @@: |
||
879 | pop eax |
||
164 | serge | 880 | popf |
881 | ret |
||
882 | endp |
||
883 | |||
884 | align 4 |
||
170 | serge | 885 | sysfn_meminfo: |
164 | serge | 886 | |
465 | serge | 887 | ; add ebx, new_app_base |
888 | cmp ebx, OS_BASE |
||
889 | jae .fail |
||
172 | serge | 890 | |
859 | serge | 891 | mov eax, [_mem_amount] |
892 | shr eax, 12 |
||
170 | serge | 893 | mov [ebx], eax |
172 | serge | 894 | shl eax, 12 |
895 | mov [esp+36], eax |
||
859 | serge | 896 | call _get_free_mem |
897 | mov [ebx+4], eax |
||
170 | serge | 898 | mov edx, [pg_data.pages_faults] |
899 | mov [ebx+8], edx |
||
900 | mov esi, [heap_size] |
||
901 | mov [ebx+12], esi |
||
902 | mov edi, [heap_free] |
||
903 | mov [ebx+16], edi |
||
904 | mov eax, [heap_blocks] |
||
905 | mov [ebx+20], eax |
||
906 | mov ecx, [free_blocks] |
||
907 | mov [ebx+24], ecx |
||
164 | serge | 908 | ret |
172 | serge | 909 | .fail: |
910 | mov dword [esp+36], -1 |
||
911 | ret |
||
164 | serge | 912 | |
913 | align 4 |
||
914 | new_services: |
||
915 | |||
916 | cmp eax,4 |
||
917 | jle sys_sheduler |
||
918 | |||
170 | serge | 919 | cmp eax, 11 |
164 | serge | 920 | jb .fail |
921 | ja @f |
||
922 | |||
188 | serge | 923 | call init_heap |
164 | serge | 924 | mov [esp+36], eax |
925 | ret |
||
926 | @@: |
||
927 | cmp eax, 12 |
||
928 | ja @f |
||
929 | |||
930 | stdcall user_alloc, ebx |
||
931 | mov [esp+36], eax |
||
932 | ret |
||
933 | @@: |
||
934 | cmp eax, 13 |
||
935 | ja @f |
||
936 | stdcall user_free, ebx |
||
937 | mov [esp+36], eax |
||
938 | ret |
||
939 | @@: |
||
940 | cmp eax, 14 |
||
941 | ja @f |
||
465 | serge | 942 | cmp ebx, OS_BASE |
943 | jae .fail |
||
227 | serge | 944 | stdcall get_event_ex, ebx, ecx |
945 | mov [esp+36], eax |
||
164 | serge | 946 | ret |
947 | @@: |
||
948 | cmp eax, 15 |
||
949 | ja @f |
||
465 | serge | 950 | mov ecx, [current_slot] |
951 | mov eax, [ecx+APPDATA.fpu_handler] |
||
952 | mov [ecx+APPDATA.fpu_handler], ebx |
||
164 | serge | 953 | mov [esp+36], eax |
954 | ret |
||
955 | @@: |
||
956 | cmp eax, 16 |
||
957 | ja @f |
||
958 | |||
188 | serge | 959 | test ebx, ebx |
960 | jz .fail |
||
465 | serge | 961 | cmp ebx, OS_BASE |
962 | jae .fail |
||
164 | serge | 963 | stdcall get_service, ebx |
964 | mov [esp+36], eax |
||
965 | ret |
||
966 | @@: |
||
967 | cmp eax, 17 |
||
968 | ja @f |
||
378 | serge | 969 | call srv_handlerEx ;ebx |
164 | serge | 970 | mov [esp+36], eax |
971 | ret |
||
168 | serge | 972 | @@: |
973 | cmp eax, 18 |
||
974 | ja @f |
||
465 | serge | 975 | mov ecx, [current_slot] |
976 | mov eax, [ecx+APPDATA.sse_handler] |
||
977 | mov [ecx+APPDATA.sse_handler], ebx |
||
168 | serge | 978 | mov [esp+36], eax |
979 | ret |
||
164 | serge | 980 | @@: |
198 | serge | 981 | cmp eax, 19 |
448 | diamond | 982 | ja @f |
465 | serge | 983 | cmp ebx, OS_BASE |
984 | jae .fail |
||
198 | serge | 985 | stdcall load_library, ebx |
986 | mov [esp+36], eax |
||
987 | ret |
||
448 | diamond | 988 | @@: |
490 | serge | 989 | cmp eax, 20 |
740 | serge | 990 | ja @F |
490 | serge | 991 | mov eax, ecx |
992 | call user_realloc |
||
993 | mov [esp+36], eax |
||
994 | ret |
||
740 | serge | 995 | @@: |
747 | serge | 996 | cmp eax, 21 ;for test purposes only |
997 | ja @f ;will be removed soon |
||
740 | serge | 998 | cmp ebx, OS_BASE |
999 | jae .fail |
||
1000 | |||
1001 | stdcall load_PE, ebx |
||
1002 | |||
1003 | test eax, eax |
||
1004 | jz @F |
||
1005 | |||
1006 | mov esi, eax |
||
1007 | stdcall eax, DRV_ENTRY |
||
1008 | |||
1009 | test eax, eax |
||
1010 | jz @F |
||
1011 | |||
1012 | mov [eax+SRV.entry], esi |
||
1013 | |||
1014 | @@: |
||
1015 | mov [esp+36], eax |
||
1016 | ret |
||
1017 | |||
1018 | |||
164 | serge | 1019 | .fail: |
1020 | xor eax, eax |
||
1021 | mov [esp+36], eax |
||
1022 | ret |
||
1023 | |||
1024 | align 4 |
||
819 | serge | 1025 | proc load_pe_driver stdcall, file:dword |
1026 | |||
1027 | stdcall load_PE, [file] |
||
1028 | test eax, eax |
||
1029 | jz .fail |
||
1030 | |||
1031 | mov esi, eax |
||
1032 | stdcall eax, DRV_ENTRY |
||
1033 | test eax, eax |
||
1034 | jz .fail |
||
1035 | |||
1036 | mov [eax+SRV.entry], esi |
||
1037 | ret |
||
1038 | |||
1039 | .fail: |
||
1040 | xor eax, eax |
||
1041 | ret |
||
1042 | endp |
||
1043 | |||
1044 | |||
1045 | align 4 |
||
164 | serge | 1046 | proc init_mtrr |
1047 | |||
412 | serge | 1048 | cmp [BOOT_VAR+0x901c],byte 2 |
164 | serge | 1049 | je .exit |
1050 | |||
211 | serge | 1051 | bt [cpu_caps], CAPS_MTRR |
1052 | jnc .exit |
||
1053 | |||
164 | serge | 1054 | mov eax, cr0 |
1055 | or eax, 0x60000000 ;disable caching |
||
1056 | mov cr0, eax |
||
1057 | wbinvd ;invalidate cache |
||
1058 | |||
1059 | mov ecx, 0x2FF |
||
1060 | rdmsr ; |
||
1061 | push eax |
||
1062 | |||
1063 | xor edx, edx |
||
1064 | xor eax, eax |
||
1065 | mov ecx, 0x2FF |
||
1066 | wrmsr ;disable all MTRR |
||
1067 | |||
846 | serge | 1068 | mov eax, [_mem_amount] |
821 | diamond | 1069 | ; round eax up to next power of 2 |
1070 | dec eax |
||
1071 | bsr ecx, eax |
||
1072 | mov eax, 2 |
||
1073 | shl eax, cl |
||
1074 | stdcall set_mtrr, edx,edx,eax,MEM_WB |
||
1075 | stdcall set_mtrr, 1,[LFBAddress],[LFBSize],MEM_WC |
||
164 | serge | 1076 | xor edx, edx |
1077 | xor eax, eax |
||
1078 | mov ecx, 0x204 |
||
1079 | mov ebx, 6 |
||
1080 | @@: |
||
1081 | wrmsr ;disable unused MTRR |
||
1082 | inc ecx |
||
1083 | wrmsr |
||
1084 | inc ecx |
||
1085 | dec ebx |
||
1086 | jnz @b |
||
1087 | |||
1088 | wbinvd ;again invalidate |
||
1089 | |||
1090 | pop eax |
||
1091 | or eax, 0x800 ;set default memtype to UC |
||
1092 | and al, 0xF0 |
||
1093 | mov ecx, 0x2FF |
||
1094 | wrmsr ;and enable MTRR |
||
1095 | |||
1096 | mov eax, cr0 |
||
1097 | and eax, not 0x60000000 |
||
1098 | mov cr0, eax ; enable caching |
||
1099 | .exit: |
||
1100 | ret |
||
1101 | endp |
||
1102 | |||
1103 | align 4 |
||
1104 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1105 | |||
1106 | xor edx, edx |
||
1107 | mov eax, [base] |
||
1108 | or eax, [mem_type] |
||
1109 | mov ecx, [reg] |
||
1110 | lea ecx, [0x200+ecx*2] |
||
1111 | wrmsr |
||
1112 | |||
1113 | mov ebx, [size] |
||
1114 | dec ebx |
||
1115 | mov eax, 0xFFFFFFFF |
||
1116 | mov edx, 0x0000000F |
||
1117 | sub eax, ebx |
||
1118 | sbb edx, 0 |
||
1119 | or eax, 0x800 |
||
1120 | inc ecx |
||
1121 | wrmsr |
||
1122 | ret |
||
1123 | endp |
||
1124 | |||
465 | serge | 1125 | align 4 |
172 | serge | 1126 | proc stall stdcall, delay:dword |
1127 | push ecx |
||
1128 | push edx |
||
1129 | push ebx |
||
1130 | push eax |
||
1131 | |||
1132 | mov eax, [delay] |
||
1133 | mul [stall_mcs] |
||
1134 | mov ebx, eax ;low |
||
1135 | mov ecx, edx ;high |
||
1136 | rdtsc |
||
1137 | add ebx, eax |
||
1138 | adc ecx,edx |
||
1139 | @@: |
||
1140 | rdtsc |
||
1141 | sub eax, ebx |
||
1142 | sbb edx, ecx |
||
1143 | jb @B |
||
1144 | |||
1145 | pop eax |
||
1146 | pop ebx |
||
1147 | pop edx |
||
1148 | pop ecx |
||
1149 | ret |
||
1150 | endp |
||
1151 | |||
520 | serge | 1152 | align 4 |
1153 | proc create_ring_buffer stdcall, size:dword, flags:dword |
||
1154 | locals |
||
1155 | buf_ptr dd ? |
||
1156 | endl |
||
237 | serge | 1157 | |
520 | serge | 1158 | mov eax, [size] |
1159 | test eax, eax |
||
1160 | jz .fail |
||
1161 | |||
1162 | add eax, eax |
||
1163 | stdcall alloc_kernel_space, eax |
||
1164 | test eax, eax |
||
1165 | jz .fail |
||
1166 | |||
662 | serge | 1167 | push ebx |
1168 | |||
520 | serge | 1169 | mov [buf_ptr], eax |
1170 | |||
1171 | mov ebx, [size] |
||
1172 | shr ebx, 12 |
||
1173 | push ebx |
||
1174 | |||
854 | serge | 1175 | stdcall _alloc_pages, ebx |
520 | serge | 1176 | pop ecx |
1177 | |||
1178 | test eax, eax |
||
1179 | jz .mm_fail |
||
1180 | |||
662 | serge | 1181 | push edi |
1182 | |||
520 | serge | 1183 | or eax, [flags] |
1184 | mov edi, [buf_ptr] |
||
1185 | mov ebx, [buf_ptr] |
||
1186 | mov edx, ecx |
||
566 | serge | 1187 | shl edx, 2 |
520 | serge | 1188 | shr edi, 10 |
1189 | @@: |
||
1190 | mov [page_tabs+edi], eax |
||
1191 | mov [page_tabs+edi+edx], eax |
||
1192 | add eax, 0x1000 |
||
1193 | add ebx, 0x1000 |
||
566 | serge | 1194 | add edi, 4 |
520 | serge | 1195 | dec ecx |
1196 | jnz @B |
||
1197 | |||
1198 | mov eax, [buf_ptr] |
||
662 | serge | 1199 | pop edi |
1200 | pop ebx |
||
520 | serge | 1201 | ret |
1202 | .mm_fail: |
||
1203 | stdcall free_kernel_space, [buf_ptr] |
||
1204 | xor eax, eax |
||
662 | serge | 1205 | pop ebx |
520 | serge | 1206 | .fail: |
1207 | ret |
||
1208 | endp |
||
1209 | |||
465 | serge | 1210 | |
841 | serge | 1211 | align 4 |
1212 | _balloc: ; gcc fastcall |
||
843 | serge | 1213 | @balloc@4: |
841 | serge | 1214 | |
843 | serge | 1215 | |
1216 | mov eax, [_pg_balloc] |
||
841 | serge | 1217 | add ecx, 4095 |
1218 | and ecx, -4096 |
||
1219 | add ecx, eax |
||
843 | serge | 1220 | mov [_pg_balloc], ecx |
841 | serge | 1221 | add eax, OS_BASE |
1222 | ret0>> |
||
1223 |