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Rev | Author | Line No. | Line |
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164 | serge | 1 | |
2 | proc alloc_page |
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3 | |||
4 | |||
5 | cli |
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6 | mov ebx, [page_start] |
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7 | mov ecx, [page_end] |
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8 | .l1: |
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9 | bsf eax,[ebx]; |
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10 | jnz .found |
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11 | add ebx,4 |
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12 | cmp ebx, ecx |
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13 | jb .l1 |
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14 | popfd |
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15 | xor eax,eax |
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16 | ret |
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17 | .found: |
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18 | btr [ebx], eax |
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19 | mov [page_start],ebx |
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20 | sub ebx, sys_pgmap |
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21 | lea eax, [eax+ebx*8] |
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254 | serge | 22 | shl eax, 12 |
164 | serge | 23 | dec [pg_data.pages_free] |
24 | popfd |
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25 | ret |
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26 | endp |
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27 | |||
28 | |||
29 | proc alloc_pages stdcall, count:dword |
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30 | pushfd |
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31 | cli |
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32 | mov eax, [count] |
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33 | add eax, 7 |
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34 | shr eax, 3 |
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35 | mov [count], eax |
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36 | cmp eax, [pg_data.pages_free] |
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37 | ja .fail |
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38 | |||
39 | |||
40 | mov ebx, [page_end] |
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41 | .find: |
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42 | mov edx, [count] |
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43 | mov edi, ecx |
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44 | .match: |
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45 | cmp byte [ecx], 0xFF |
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46 | jne .next |
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47 | dec edx |
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48 | jz .ok |
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49 | inc ecx |
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50 | cmp ecx,ebx |
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51 | jb .match |
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52 | .fail: xor eax, eax |
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53 | popfd |
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54 | ret |
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55 | .next: |
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56 | inc ecx |
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57 | cmp ecx, ebx |
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58 | jb .find |
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59 | popfd |
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60 | xor eax, eax |
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61 | ret |
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62 | .ok: |
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63 | sub ecx, edi |
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64 | inc ecx |
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65 | mov esi, edi |
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66 | xor eax, eax |
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67 | rep stosb |
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68 | sub esi, sys_pgmap |
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69 | shl esi, 3+12 |
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70 | mov eax, esi |
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71 | mov ebx, [count] |
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72 | shl ebx, 3 |
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73 | sub [pg_data.pages_free], ebx |
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74 | popfd |
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75 | ret |
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76 | endp |
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77 | |||
78 | |||
79 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
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80 | push ebx |
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321 | diamond | 81 | mov eax, [phis_addr] |
164 | serge | 82 | and eax, not 0xFFF |
83 | or eax, [flags] |
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84 | mov ebx, [lin_addr] |
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85 | shr ebx, 12 |
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86 | mov [page_tabs+ebx*4], eax |
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365 | serge | 87 | mov eax, [lin_addr] |
164 | serge | 88 | invlpg [eax] |
89 | pop ebx |
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321 | diamond | 90 | ret |
164 | serge | 91 | endp |
92 | |||
93 | |||
94 | map_space: ;not implemented |
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281 | serge | 95 | |
96 | |||
97 | |||
98 | |||
99 | |||
100 | |||
101 | proc free_page |
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164 | serge | 102 | ;arg: eax page address |
103 | pushfd |
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104 | cli |
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105 | shr eax, 12 ;page index |
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106 | mov ebx, sys_pgmap |
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107 | bts [ebx], eax ;that's all! |
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108 | cmc |
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291 | serge | 109 | adc [pg_data.pages_free], 0 |
328 | serge | 110 | shr eax, 3 |
164 | serge | 111 | and eax, not 3 ;dword offset from page_map |
112 | add eax, ebx |
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113 | cmp [page_start], eax |
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114 | ja @f |
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115 | popfd |
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116 | ret |
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117 | @@: |
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118 | mov [page_start], eax |
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119 | popfd |
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120 | ret |
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121 | endp |
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122 | |||
123 | |||
279 | serge | 124 | ; eax= page base + page flags |
328 | serge | 125 | ; ebx= liear address |
281 | serge | 126 | ; ecx= count |
127 | |||
128 | |||
129 | commit_pages: |
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328 | serge | 130 | |
281 | serge | 131 | |
328 | serge | 132 | jz .fail |
133 | |||
281 | serge | 134 | |
328 | serge | 135 | mov ebx, pg_data.pg_mutex |
136 | call wait_mutex ;ebx |
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137 | |||
138 | |||
139 | mov ebx, edi |
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140 | shr ebx, 12 |
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141 | @@: |
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142 | mov [page_tabs+ebx*4], eax |
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365 | serge | 143 | invlpg [edi] |
328 | serge | 144 | add edi, edx |
145 | add eax, edx |
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146 | inc ebx |
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147 | dec ecx |
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148 | jnz @B |
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149 | mov [pg_data.pg_mutex],ecx |
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150 | .fail: |
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151 | ret |
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281 | serge | 152 | |
153 | |||
328 | serge | 154 | |
281 | serge | 155 | ; eax= base |
279 | serge | 156 | ; ecx= count |
281 | serge | 157 | |
279 | serge | 158 | |
164 | serge | 159 | release_pages: |
279 | serge | 160 | |
321 | diamond | 161 | |
162 | mov ebx, pg_data.pg_mutex |
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279 | serge | 163 | call wait_mutex ;ebx |
164 | |||
165 | |||
166 | mov edi, eax |
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167 | |||
168 | |||
169 | add esi, page_tabs |
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365 | serge | 170 | |
328 | serge | 171 | |
172 | mov ebx, [page_start] |
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279 | serge | 173 | mov edx, sys_pgmap |
174 | @@: |
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175 | xor eax, eax |
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176 | xchg eax, [esi] |
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177 | invlpg [edi] |
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178 | |||
179 | |||
180 | jz .next |
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181 | |||
182 | |||
183 | bts [edx], eax |
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184 | cmc |
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291 | serge | 185 | adc ebp, 0 |
328 | serge | 186 | shr eax, 3 |
279 | serge | 187 | and eax, -4 |
188 | add eax, edx |
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189 | cmp eax, ebx |
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190 | jae .next |
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191 | |||
192 | |||
193 | .next: |
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194 | add edi, 0x1000 |
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195 | add esi, 4 |
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196 | dec ecx |
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197 | jnz @B |
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198 | mov [pg_data.pages_free], ebp |
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328 | serge | 199 | and [pg_data.pg_mutex],0 |
279 | serge | 200 | popad |
321 | diamond | 201 | ret |
279 | serge | 202 | |
203 | |||
204 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
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188 | serge | 205 | push ebx |
321 | diamond | 206 | mov ebx, [lin_addr] |
164 | serge | 207 | shr ebx, 22 |
208 | mov eax, [phis_addr] |
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209 | and eax, not 0xFFF |
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210 | or eax, PG_UW ;+PG_NOCACHE |
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211 | mov dword [master_tab+ebx*4], eax |
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378 | serge | 212 | mov eax, [lin_addr] |
164 | serge | 213 | shr eax, 10 |
214 | add eax, page_tabs |
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365 | serge | 215 | invlpg [eax] |
164 | serge | 216 | pop ebx |
321 | diamond | 217 | ret |
164 | serge | 218 | endp |
219 | |||
220 | |||
221 | proc init_LFB |
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222 | locals |
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378 | serge | 223 | pg_count dd ? |
224 | endl |
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225 | |||
226 | |||
164 | serge | 227 | jne @f |
228 | mov [BOOT_VAR+0x901c],byte 2 |
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388 | serge | 229 | stdcall kernel_alloc, 0x280000 |
164 | serge | 230 | mov [LFBAddress], eax |
231 | ret |
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232 | @@: |
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233 | test [SCR_MODE],word 0100000000000000b |
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234 | jnz @f |
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211 | serge | 235 | mov [BOOT_VAR+0x901c],byte 2 |
388 | serge | 236 | ret |
211 | serge | 237 | @@: |
238 | mov edx, LFB_BASE |
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378 | serge | 239 | mov esi, [LFBAddress] |
240 | mov edi, 0x00800000 |
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388 | serge | 241 | mov dword [exp_lfb+4], edx |
379 | serge | 242 | |
214 | serge | 243 | |
164 | serge | 244 | mov [pg_count], edi |
245 | shr edi, 10 |
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246 | |||
247 | |||
248 | jnc .map_page_tables |
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249 | or esi, PG_LARGE+PG_UW |
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250 | mov edx, sys_pgdir+(LFB_BASE shr 20) |
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400 | serge | 251 | @@: |
164 | serge | 252 | mov [edx], esi |
400 | serge | 253 | add edx, 4 |
378 | serge | 254 | add esi, 0x00400000 |
164 | serge | 255 | dec edi |
256 | jnz @B |
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257 | |||
258 | |||
207 | serge | 259 | jnc @F |
260 | or dword [sys_pgdir+(LFB_BASE shr 20)], PG_GLOBAL |
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400 | serge | 261 | @@: |
207 | serge | 262 | mov dword [LFBAddress], LFB_BASE |
378 | serge | 263 | mov eax, cr3 ;flush TLB |
164 | serge | 264 | mov cr3, eax |
265 | ret |
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266 | |||
267 | |||
268 | |||
269 | |||
270 | call alloc_page |
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271 | stdcall map_page_table, edx, eax |
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378 | serge | 272 | add edx, 0x00400000 |
388 | serge | 273 | dec edi |
164 | serge | 274 | jnz @B |
275 | |||
276 | |||
277 | mov edi, page_tabs + (LFB_BASE shr 10) |
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378 | serge | 278 | or eax, PG_UW |
164 | serge | 279 | mov ecx, [pg_count] |
280 | cld |
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378 | serge | 281 | @@: |
388 | serge | 282 | stosd |
283 | add eax, 0x1000 |
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284 | dec ecx |
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285 | jnz @B |
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286 | |||
164 | serge | 287 | |
378 | serge | 288 | mov eax, cr3 ;flush TLB |
164 | serge | 289 | mov cr3, eax |
290 | |||
291 | |||
292 | endp |
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293 | |||
294 | |||
295 | proc new_mem_resize stdcall, new_size:dword |
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296 | |||
297 | |||
276 | serge | 298 | call wait_mutex ;ebx |
299 | |||
164 | serge | 300 | |
301 | add edi,4095 |
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302 | and edi,not 4095 |
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303 | mov [new_size], edi |
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304 | |||
305 | |||
306 | shl edx,8 |
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307 | cmp [SLOT_BASE+APPDATA.heap_base+edx],0 |
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380 | serge | 308 | jne .exit |
172 | serge | 309 | |
310 | |||
380 | serge | 311 | add esi, 4095 |
164 | serge | 312 | and esi, not 4095 |
313 | |||
314 | |||
315 | jae .expand |
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316 | |||
317 | |||
318 | shr esi, 12 |
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319 | @@: |
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320 | mov eax, [app_page_tabs+edi*4] |
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378 | serge | 321 | test eax, 1 |
164 | serge | 322 | jz .next |
323 | mov dword [app_page_tabs+edi*4], 2 |
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378 | serge | 324 | mov ebx, edi |
164 | serge | 325 | shl ebx, 12 |
326 | invlpg [ebx+std_application_base_address] |
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327 | call free_page |
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328 | |||
329 | |||
330 | cmp edi, esi |
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331 | jb @B |
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332 | |||
333 | |||
334 | mov ebx, [new_size] |
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294 | diamond | 335 | call update_mem_size |
336 | |||
164 | serge | 337 | |
338 | dec [pg_data.pg_mutex] |
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339 | ret |
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340 | |||
341 | |||
342 | ; add edi, new_app_base |
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419 | serge | 343 | ; add esi, new_app_base |
344 | |||
164 | serge | 345 | |
346 | push edi |
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347 | |||
348 | |||
349 | and edi, not(0x3FFFFF) |
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350 | add esi, 0x3FFFFF |
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351 | and esi, not(0x3FFFFF) |
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352 | |||
353 | |||
354 | jae .grow |
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355 | |||
356 | |||
357 | |||
358 | |||
359 | call alloc_page |
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360 | test eax, eax |
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361 | jz .exit |
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362 | |||
363 | |||
188 | serge | 364 | |
164 | serge | 365 | |
366 | shr edi, 10 |
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367 | add edi, page_tabs |
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365 | serge | 368 | mov ecx, 1024 |
164 | serge | 369 | xor eax, eax |
370 | cld |
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371 | rep stosd |
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372 | pop edi |
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373 | |||
374 | |||
375 | cmp edi, esi |
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376 | jb @B |
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377 | .grow: |
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378 | pop edi |
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379 | pop esi |
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380 | @@: |
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381 | call alloc_page |
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382 | test eax, eax |
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383 | jz .exit |
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384 | stdcall map_page,esi,eax,dword PG_UW |
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385 | |||
386 | |||
387 | mov edi, esi |
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388 | xor eax, eax |
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389 | mov ecx, 1024 |
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390 | cld |
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391 | rep stosd |
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392 | pop edi |
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393 | |||
394 | |||
395 | cmp esi, edi |
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396 | jb @B |
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294 | diamond | 397 | |
164 | serge | 398 | |
399 | .exit: |
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400 | xor eax, eax |
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401 | inc eax |
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402 | dec [pg_data.pg_mutex] |
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403 | ret |
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404 | endp |
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405 | |||
406 | |||
294 | diamond | 407 | ; in: edx = slot shl 8 |
408 | ; ebx = new memory size |
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409 | ; destroys eax,ecx,edx |
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410 | |||
411 | |||
380 | serge | 412 | ;search threads and update |
294 | diamond | 413 | ;application memory size infomation |
414 | mov ecx,[SLOT_BASE+APPDATA.dir_table+edx] |
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380 | serge | 415 | mov eax,2 |
294 | diamond | 416 | |
417 | |||
418 | ;eax = current slot |
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419 | ;ebx = new memory size |
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420 | ;ecx = page directory |
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421 | cmp eax,[TASK_COUNT] |
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422 | jg .search_threads_end |
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423 | mov edx,eax |
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424 | shl edx,5 |
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425 | cmp word [CURRENT_TASK+edx+TASKDATA.state],9 ;if slot empty? |
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426 | jz .search_threads_next |
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427 | shl edx,3 |
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428 | cmp [SLOT_BASE+edx+APPDATA.dir_table],ecx ;if it is our thread? |
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380 | serge | 429 | jnz .search_threads_next |
294 | diamond | 430 | mov [SLOT_BASE+edx+APPDATA.mem_size],ebx ;update memory size |
380 | serge | 431 | .search_threads_next: |
294 | diamond | 432 | inc eax |
433 | jmp .search_threads |
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434 | .search_threads_end: |
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435 | ret |
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436 | |||
437 | |||
285 | serge | 438 | ; eax= linear address |
439 | ; |
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440 | ; retval |
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441 | ; eax= phisical page address |
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442 | |||
443 | |||
164 | serge | 444 | get_pg_addr: |
285 | serge | 445 | shr eax, 12 |
446 | mov eax, [page_tabs+eax*4] |
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365 | serge | 447 | and eax, 0xFFFFF000 |
164 | serge | 448 | ret |
449 | |||
450 | |||
418 | serge | 451 | |
188 | serge | 452 | proc page_fault_handler |
164 | serge | 453 | |
418 | serge | 454 | |
455 | .err_addr equ ebp-4 |
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456 | |||
457 | |||
164 | serge | 458 | |
459 | |||
419 | serge | 460 | ; push edx |
461 | ; mov edx, 0x400 ;bocsh |
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462 | ; mov al,0xff ;bocsh |
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463 | ; out dx, al ;bocsh |
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464 | ; pop edx |
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465 | ; pop eax |
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466 | |||
388 | serge | 467 | |
164 | serge | 468 | mov eax, cr2 |
469 | push eax |
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172 | serge | 470 | push ds |
164 | serge | 471 | push es |
188 | serge | 472 | |
164 | serge | 473 | |
474 | mov ds, ax |
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475 | mov es, ax |
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188 | serge | 476 | |
164 | serge | 477 | |
188 | serge | 478 | |
479 | |||
418 | serge | 480 | mov eax, [.err_code] |
419 | serge | 481 | |
164 | serge | 482 | |
419 | serge | 483 | jb .user_space ;ñòðàíèöà â ïàìÿòè ïðèëîæåíè |
484 | |||
164 | serge | 485 | |
419 | serge | 486 | jb .kernel_space ;ñòðàíèöà â ïàìÿòè ÿäðà |
487 | |||
394 | serge | 488 | |
419 | serge | 489 | jb .alloc;.app_tabs ;òàáëèöû ñòðàíèö ïðèëîæåíè |
490 | ;ïðîñòî ñîçäàäèì îäíó |
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491 | |||
188 | serge | 492 | |
419 | serge | 493 | jb .core_tabs ;òàáëèöû ñòðàíèö ÿäðà |
494 | ;Îøèáêà |
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495 | .lfb: |
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496 | ;îáëàñòü LFB |
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497 | ;Îøèáêà |
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498 | jmp .fail |
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499 | |||
378 | serge | 500 | |
419 | serge | 501 | .user_space: |
502 | test eax, PG_MAP |
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503 | jnz .err_access ;Ñòðàíèöà ïðèñóòñòâóåò |
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504 | ;Îøèáêà äîñòóïà ? |
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505 | |||
395 | serge | 506 | |
164 | serge | 507 | mov ecx, ebx |
172 | serge | 508 | shr ecx, 10 |
509 | mov edx, [master_tab+ecx*4] |
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510 | test edx, PG_MAP |
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419 | serge | 511 | jz .fail ;òàáëèöà ñòðàíèö íå ñîçäàíà |
512 | ;íåâåðíûé àäðåñ â ïðîãðàììå |
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513 | |||
172 | serge | 514 | |
365 | serge | 515 | test eax, 2 |
164 | serge | 516 | jz .fail ;àäðåñ íå çàðåçåðâèðîâàí äë |
419 | serge | 517 | ;èñïîëüçîâàíèÿ. Îøèáêà |
518 | .alloc: |
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188 | serge | 519 | call alloc_page |
164 | serge | 520 | and eax, eax |
521 | jz .fail |
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419 | serge | 522 | |
164 | serge | 523 | |
524 | |||
525 | |||
188 | serge | 526 | and edi, 0xFFFFF000 |
527 | mov ecx, 1024 |
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164 | serge | 528 | xor eax, eax |
529 | cld |
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188 | serge | 530 | rep stosd |
531 | .exit: |
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164 | serge | 532 | pop es |
188 | serge | 533 | pop ds |
164 | serge | 534 | mov esp, ebp |
535 | popad |
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536 | add esp, 4 |
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537 | iretd |
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538 | |||
419 | serge | 539 | |
540 | ;íèêîãäà íå ïðîèñõîäèò |
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541 | jmp .fail |
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542 | |||
543 | |||
544 | test eax, PG_MAP |
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545 | jz .fail ;ñòðàíèöà íå ïðèñóòñòâóåò |
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546 | |||
547 | |||
548 | jnz .fail ;ïðèëîæåíèå îáðàòèëîñü ê ïàìÿòè |
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549 | ;ÿäðà |
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550 | test eax, 8 |
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551 | jnz .fail ;óñòàíîâëåí çàðåçåðâèðîâàííûé áèò |
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552 | ;â òàáëèöàõ ñòðàíèö. äîáàâëåíî â P4/Xeon |
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553 | |||
554 | |||
555 | ;íå îáðàáàòûâàåì. Îøèáêà |
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556 | |||
557 | |||
558 | .fail: |
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172 | serge | 559 | pop es |
188 | serge | 560 | pop ds |
172 | serge | 561 | mov esp, ebp |
562 | popad |
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563 | add esp, 4 |
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564 | iretd |
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388 | serge | 565 | |
164 | serge | 566 | |
172 | serge | 567 | |
568 | |||
569 | jmp exc_c |
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570 | iretd |
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571 | |||
572 | |||
419 | serge | 573 | ; shr ebx, 12 |
188 | serge | 574 | ; mov eax, [page_tabs+ebx*4] |
365 | serge | 575 | ; shr ebx, 10 |
188 | serge | 576 | ; mov eax, [master_tab+ebx*4] |
577 | jmp .exit |
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578 | ;.old_addr: |
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419 | serge | 579 | ; shr ebx, 12 |
188 | serge | 580 | ; mov eax, [page_tabs+ebx*4] |
365 | serge | 581 | ; shr ebx, 10 |
188 | serge | 582 | ; mov eax, [master_tab+ebx*4] |
583 | jmp .exit |
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584 | ;.lfb_addr: |
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419 | serge | 585 | ; shr ebx, 22 |
188 | serge | 586 | ; ;mov ecx, [sys_page_dir] |
587 | ; mov eax, [master_tab+ebx*4] |
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588 | jmp .exit |
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589 | ;.tab_space: |
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419 | serge | 590 | ; shr ebx, 12 |
188 | serge | 591 | ; mov eax, [page_tabs+ebx*4] |
365 | serge | 592 | ; shr ebx, 10 |
188 | serge | 593 | ; ;mov ecx, [sys_page_dir] |
594 | ; mov eax, [master_tab+ebx*4] |
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595 | ; jmp .exit |
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419 | serge | 596 | endp |
164 | serge | 597 | |
598 | |||
599 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
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600 | ofs:dword,buf_size:dword |
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601 | mov eax, [buf_size] |
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602 | test eax, eax |
||
603 | jz .exit |
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604 | |||
605 | |||
606 | and eax, 0xFFFFF000 |
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607 | |||
608 | |||
609 | mov ebx, [ofs] |
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610 | shr ebx, 22 |
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611 | mov esi, [ipc_pdir] |
||
612 | mov edi, [ipc_ptab] |
||
613 | mov eax, [esi+ebx*4] |
||
614 | and eax, 0xFFFFF000 |
||
615 | test eax, eax |
||
616 | jz .exit |
||
617 | stdcall map_page,edi,eax,dword PG_UW |
||
618 | ; inc ebx |
||
619 | ; add edi, 0x1000 |
||
620 | ; mov eax, [esi+ebx*4] |
||
621 | ; test eax, eax |
||
622 | ; jz @f |
||
623 | ; and eax, 0xFFFFF000 |
||
624 | ; stdcall map_page, edi, eax |
||
625 | |||
626 | |||
627 | and edi, 0xFFFFF000 |
||
628 | mov ecx, [buf_size] |
||
629 | add ecx, 4095 |
||
630 | shr ecx, 12 |
||
631 | inc ecx |
||
632 | |||
633 | |||
634 | shr edx, 12 |
||
635 | and edx, 0x3FF |
||
636 | mov esi, [ipc_ptab] |
||
637 | |||
638 | |||
639 | and eax, 0xFFFFF000 |
||
640 | test eax, eax |
||
641 | jz .exit |
||
642 | stdcall map_page,edi,eax,dword PG_UW |
||
643 | add edi, 0x1000 |
||
644 | inc edx |
||
645 | dec ecx |
||
646 | jnz .map |
||
647 | |||
648 | |||
649 | ret |
||
650 | endp |
||
651 | |||
652 | |||
653 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
||
654 | ofs:dword,buf_size:dword |
||
655 | mov eax, [buf_size] |
||
656 | test eax, eax |
||
657 | jz .exit |
||
658 | |||
659 | |||
660 | and eax, 0xFFFFF000 |
||
661 | |||
662 | |||
663 | mov ebx, [ofs] |
||
664 | shr ebx, 22 |
||
665 | mov esi, [proc_mem_pdir] |
||
666 | mov edi, [proc_mem_tab] |
||
667 | mov eax, [esi+ebx*4] |
||
668 | and eax, 0xFFFFF000 |
||
669 | test eax, eax |
||
670 | jz .exit |
||
671 | stdcall map_page,edi,eax,dword PG_UW |
||
672 | |||
673 | |||
674 | and edi, 0xFFFFF000 |
||
675 | mov ecx, [buf_size] |
||
676 | add ecx, 4095 |
||
677 | shr ecx, 12 |
||
678 | inc ecx |
||
679 | |||
680 | |||
681 | shr edx, 12 |
||
682 | and edx, 0x3FF |
||
683 | mov esi, [proc_mem_tab] |
||
684 | |||
685 | |||
686 | ; and eax, 0xFFFFF000 |
||
687 | ; test eax, eax |
||
688 | ; jz .exit |
||
689 | stdcall map_page,edi,eax,dword PG_UW |
||
690 | add edi, 0x1000 |
||
691 | inc edx |
||
692 | dec ecx |
||
693 | jnz .map |
||
694 | .exit: |
||
695 | ret |
||
696 | endp |
||
697 | |||
698 | |||
699 | |||
700 | |||
701 | |||
702 | ;input: |
||
703 | ; eax=1 - set ipc buffer area |
||
704 | ; ebx=address of buffer |
||
705 | ; ecx=size of buffer |
||
706 | ; eax=2 - send message |
||
707 | ; ebx=PID |
||
708 | ; ecx=address of message |
||
709 | ; edx=size of message |
||
710 | |||
711 | |||
712 | jne @f |
||
713 | call set_ipc_buff |
||
714 | mov [esp+36], eax |
||
715 | ret |
||
716 | @@: |
||
717 | cmp eax, 2 |
||
718 | jne @f |
||
719 | stdcall sys_ipc_send, ebx, ecx, edx |
||
720 | mov [esp+36], eax |
||
721 | ret |
||
722 | @@: |
||
723 | xor eax, eax |
||
724 | not eax |
||
725 | mov [esp+36], eax |
||
726 | ret |
||
727 | |||
728 | |||
729 | proc set_ipc_buff |
||
730 | |||
731 | |||
732 | shl eax,8 |
||
733 | add eax, SLOT_BASE |
||
380 | serge | 734 | pushf |
164 | serge | 735 | cli |
736 | mov [eax+0xA0],ebx ;set fields in extended information area |
||
737 | mov [eax+0xA4],ecx |
||
738 | |||
739 | |||
419 | serge | 740 | add ecx, ebx |
164 | serge | 741 | add ecx, 4095 |
742 | and ecx, not 4095 |
||
743 | |||
744 | |||
745 | add ebx, 0x1000 |
||
746 | cmp ebx, ecx |
||
747 | jna .touch |
||
748 | |||
749 | |||
750 | xor eax, eax |
||
751 | ret |
||
752 | endp |
||
753 | |||
754 | |||
755 | locals |
||
756 | dst_slot dd ? |
||
757 | dst_offset dd ? |
||
758 | buf_size dd ? |
||
759 | endl |
||
760 | |||
761 | |||
762 | cli |
||
763 | |||
764 | |||
765 | call pid_to_slot |
||
766 | test eax,eax |
||
767 | jz .no_pid |
||
768 | |||
769 | |||
770 | shl eax,8 |
||
771 | mov edi,[eax+SLOT_BASE+0xa0] ;is ipc area defined? |
||
380 | serge | 772 | test edi,edi |
164 | serge | 773 | jz .no_ipc_area |
774 | |||
775 | |||
776 | ; add edi, new_app_base |
||
419 | serge | 777 | and ebx, 0xFFF |
164 | serge | 778 | mov [dst_offset], ebx |
779 | |||
780 | |||
380 | serge | 781 | mov [buf_size], esi |
164 | serge | 782 | |
783 | |||
380 | serge | 784 | edi, esi |
164 | serge | 785 | |
786 | |||
787 | add edi, [ipc_tmp] |
||
788 | cmp dword [edi], 0 |
||
789 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
790 | |||
227 | serge | 791 | |
164 | serge | 792 | mov edx, ebx |
793 | add ebx, 8 |
||
794 | add ebx, [msg_size] |
||
795 | cmp ebx, [buf_size] |
||
796 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
797 | |||
227 | serge | 798 | |
164 | serge | 799 | mov eax,[TASK_BASE] |
800 | mov eax, [eax+0x04] ;eax - our PID |
||
801 | mov edi, [dst_offset] |
||
802 | add edi, [ipc_tmp] |
||
803 | add edi, edx |
||
804 | mov [edi], eax |
||
805 | mov ecx, [msg_size] |
||
806 | |||
807 | |||
808 | add edi, 8 |
||
809 | mov esi, [msg_addr] |
||
810 | ; add esi, new_app_base |
||
419 | serge | 811 | cld |
164 | serge | 812 | rep movsb |
813 | |||
814 | |||
815 | mov edx, ebx |
||
816 | shr ebx, 12 |
||
817 | xor eax, eax |
||
818 | mov [page_tabs+ebx*4], eax |
||
365 | serge | 819 | invlpg [edx] |
164 | serge | 820 | |
821 | |||
822 | mov edx, ebx |
||
823 | shr ebx, 12 |
||
824 | xor eax, eax |
||
825 | mov [page_tabs+ebx*4], eax |
||
365 | serge | 826 | invlpg [edx] |
164 | serge | 827 | |
828 | |||
829 | mov edx, ebx |
||
830 | shr ebx, 12 |
||
831 | xor eax, eax |
||
832 | mov [page_tabs+ebx*4], eax |
||
365 | serge | 833 | invlpg [edx] |
164 | serge | 834 | |
835 | |||
836 | shl eax, 8 |
||
837 | or [eax+SLOT_BASE+0xA8],dword 0x40 |
||
380 | serge | 838 | cmp dword [check_idle_semaphore],20 |
164 | serge | 839 | jge .ipc_no_cis |
840 | |||
841 | |||
842 | .ipc_no_cis: |
||
843 | popf |
||
844 | xor eax, eax |
||
845 | ret |
||
846 | .no_pid: |
||
847 | popf |
||
848 | mov eax, 4 |
||
849 | ret |
||
850 | .no_ipc_area: |
||
851 | popf |
||
852 | xor eax, eax |
||
853 | inc eax |
||
854 | ret |
||
855 | .ipc_blocked: |
||
856 | popf |
||
857 | mov eax, 2 |
||
858 | ret |
||
859 | .buffer_overflow: |
||
860 | popf |
||
861 | mov eax, 3 |
||
862 | ret |
||
863 | endp |
||
864 | |||
865 | |||
866 | sysfn_meminfo: |
||
170 | serge | 867 | |
164 | serge | 868 | |
419 | serge | 869 | cmp ebx, OS_BASE |
870 | jae .fail |
||
871 | |||
172 | serge | 872 | |
164 | serge | 873 | mov [ebx], eax |
170 | serge | 874 | shl eax, 12 |
172 | serge | 875 | mov [esp+36], eax |
876 | mov ecx, [pg_data.pages_free] |
||
170 | serge | 877 | mov [ebx+4], ecx |
878 | mov edx, [pg_data.pages_faults] |
||
879 | mov [ebx+8], edx |
||
880 | mov esi, [heap_size] |
||
881 | mov [ebx+12], esi |
||
882 | mov edi, [heap_free] |
||
883 | mov [ebx+16], edi |
||
884 | mov eax, [heap_blocks] |
||
885 | mov [ebx+20], eax |
||
886 | mov ecx, [free_blocks] |
||
887 | mov [ebx+24], ecx |
||
888 | ret |
||
164 | serge | 889 | .fail: |
172 | serge | 890 | mov dword [esp+36], -1 |
891 | ret |
||
892 | |||
164 | serge | 893 | |
894 | new_services: |
||
895 | |||
896 | |||
897 | jle sys_sheduler |
||
898 | |||
899 | |||
170 | serge | 900 | jb .fail |
164 | serge | 901 | ja @f |
902 | |||
903 | |||
188 | serge | 904 | mov [esp+36], eax |
164 | serge | 905 | ret |
906 | @@: |
||
907 | cmp eax, 12 |
||
908 | ja @f |
||
909 | |||
910 | |||
911 | mov [esp+36], eax |
||
912 | ret |
||
913 | @@: |
||
914 | cmp eax, 13 |
||
915 | ja @f |
||
916 | ; add ebx, new_app_base |
||
419 | serge | 917 | stdcall user_free, ebx |
164 | serge | 918 | mov [esp+36], eax |
919 | ret |
||
920 | @@: |
||
921 | cmp eax, 14 |
||
922 | ja @f |
||
923 | ; add ebx, new_app_base |
||
419 | serge | 924 | cmp ebx, OS_BASE |
925 | jae .fail |
||
926 | stdcall get_event_ex, ebx, ecx |
||
227 | serge | 927 | mov [esp+36], eax |
928 | ret |
||
164 | serge | 929 | @@: |
930 | cmp eax, 15 |
||
931 | ja @f |
||
932 | mov ecx, [CURRENT_TASK] |
||
933 | shl ecx, 8 |
||
934 | mov eax, [ecx+SLOT_BASE+APPDATA.fpu_handler] |
||
380 | serge | 935 | mov [ecx+SLOT_BASE+APPDATA.fpu_handler], ebx |
936 | mov [esp+36], eax |
||
164 | serge | 937 | ret |
938 | @@: |
||
939 | cmp eax, 16 |
||
940 | ja @f |
||
941 | |||
942 | |||
188 | serge | 943 | jz .fail |
944 | ; add ebx, new_app_base |
||
419 | serge | 945 | cmp ebx, OS_BASE |
946 | jae .fail |
||
947 | stdcall get_service, ebx |
||
164 | serge | 948 | mov [esp+36], eax |
949 | ret |
||
950 | @@: |
||
951 | cmp eax, 17 |
||
952 | ja @f |
||
953 | call srv_handlerEx ;ebx |
||
378 | serge | 954 | mov [esp+36], eax |
164 | serge | 955 | ret |
956 | @@: |
||
168 | serge | 957 | cmp eax, 18 |
958 | ja @f |
||
959 | mov ecx, [CURRENT_TASK] |
||
960 | shl ecx, 8 |
||
961 | mov eax, [ecx+SLOT_BASE+APPDATA.sse_handler] |
||
380 | serge | 962 | mov [ecx+SLOT_BASE+APPDATA.sse_handler], ebx |
963 | mov [esp+36], eax |
||
168 | serge | 964 | ret |
965 | @@: |
||
164 | serge | 966 | cmp eax, 19 |
198 | serge | 967 | ja .fail |
227 | serge | 968 | ; add ebx, new_app_base |
419 | serge | 969 | cmp ebx, OS_BASE |
970 | jae .fail |
||
971 | stdcall load_library, ebx |
||
198 | serge | 972 | mov [esp+36], eax |
973 | ret |
||
974 | |||
227 | serge | 975 | |
164 | serge | 976 | xor eax, eax |
977 | mov [esp+36], eax |
||
978 | ret |
||
979 | |||
980 | |||
981 | proc init_mtrr |
||
982 | |||
983 | |||
388 | serge | 984 | je .exit |
164 | serge | 985 | |
986 | |||
211 | serge | 987 | jnc .exit |
988 | |||
989 | |||
164 | serge | 990 | or eax, 0x60000000 ;disable caching |
991 | mov cr0, eax |
||
992 | wbinvd ;invalidate cache |
||
993 | |||
994 | |||
995 | rdmsr ; |
||
996 | push eax |
||
997 | |||
998 | |||
999 | xor eax, eax |
||
1000 | mov ecx, 0x2FF |
||
1001 | wrmsr ;disable all MTRR |
||
1002 | |||
1003 | |||
1004 | stdcall set_mtrr, dword 1,[LFBAddress],[LFBSize],MEM_WC |
||
1005 | xor edx, edx |
||
1006 | xor eax, eax |
||
1007 | mov ecx, 0x204 |
||
1008 | mov ebx, 6 |
||
1009 | @@: |
||
1010 | wrmsr ;disable unused MTRR |
||
1011 | inc ecx |
||
1012 | wrmsr |
||
1013 | inc ecx |
||
1014 | dec ebx |
||
1015 | jnz @b |
||
1016 | |||
1017 | |||
1018 | |||
1019 | |||
1020 | or eax, 0x800 ;set default memtype to UC |
||
1021 | and al, 0xF0 |
||
1022 | mov ecx, 0x2FF |
||
1023 | wrmsr ;and enable MTRR |
||
1024 | |||
1025 | |||
1026 | and eax, not 0x60000000 |
||
1027 | mov cr0, eax ; enable caching |
||
1028 | .exit: |
||
1029 | ret |
||
1030 | endp |
||
1031 | |||
1032 | |||
1033 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1034 | |||
1035 | |||
1036 | mov eax, [base] |
||
1037 | or eax, [mem_type] |
||
1038 | mov ecx, [reg] |
||
1039 | lea ecx, [0x200+ecx*2] |
||
1040 | wrmsr |
||
1041 | |||
1042 | |||
1043 | dec ebx |
||
1044 | mov eax, 0xFFFFFFFF |
||
1045 | mov edx, 0x0000000F |
||
1046 | sub eax, ebx |
||
1047 | sbb edx, 0 |
||
1048 | or eax, 0x800 |
||
1049 | inc ecx |
||
1050 | wrmsr |
||
1051 | ret |
||
1052 | endp |
||
1053 | |||
1054 | |||
388 | serge | 1055 | |
172 | serge | 1056 | proc strncmp stdcall, str1:dword, str2:dword, count:dword |
388 | serge | 1057 | |
1058 | |||
1059 | jecxz .end |
||
1060 | |||
1061 | |||
1062 | |||
1063 | |||
1064 | mov esi,edi |
||
1065 | xor eax,eax |
||
1066 | repne scasb |
||
1067 | neg ecx ; cx = count - strlen |
||
1068 | add ecx,ebx ; strlen + count - strlen |
||
1069 | |||
1070 | |||
1071 | mov edi,esi |
||
1072 | mov esi,[str2] |
||
1073 | repe cmpsb |
||
1074 | mov al,[esi-1] |
||
1075 | xor ecx,ecx |
||
1076 | |||
1077 | |||
1078 | ja .str2_big |
||
1079 | je .end |
||
1080 | |||
1081 | |||
1082 | sub ecx,2 |
||
1083 | |||
1084 | |||
1085 | not ecx |
||
1086 | .end: |
||
1087 | mov eax,ecx |
||
1088 | ret |
||
1089 | endp |
||
1090 | |||
1091 | |||
1092 | proc stall stdcall, delay:dword |
||
172 | serge | 1093 | push ecx |
1094 | push edx |
||
1095 | push ebx |
||
1096 | push eax |
||
1097 | |||
1098 | |||
1099 | mul [stall_mcs] |
||
1100 | mov ebx, eax ;low |
||
1101 | mov ecx, edx ;high |
||
1102 | rdtsc |
||
1103 | add ebx, eax |
||
1104 | adc ecx,edx |
||
1105 | @@: |
||
1106 | rdtsc |
||
1107 | sub eax, ebx |
||
1108 | sbb edx, ecx |
||
1109 | jb @B |
||
1110 | |||
1111 | |||
1112 | pop ebx |
||
1113 | pop edx |
||
1114 | pop ecx |
||
1115 | ret |
||
1116 | endp |
||
1117 | |||
1118 | |||
164 | serge | 1119 | k_strrchr: |
237 | serge | 1120 | push eax |
1121 | xor eax,eax |
||
1122 | or ecx,-1 |
||
1123 | repne scasb |
||
1124 | add ecx,1 |
||
1125 | neg ecx |
||
1126 | sub edi,1 |
||
1127 | pop eax |
||
1128 | std |
||
1129 | repne scasb |
||
1130 | cld |
||
1131 | add edi,1 |
||
1132 | |||
1133 | |||
1134 | jne @F |
||
1135 | mov eax,edi |
||
1136 | ret |
||
1137 | @@: |
||
1138 | xor eax,eax |
||
1139 | ret |
||
1140 | |||
1141 | |||
1142 | proc k_strncpy stdcall, dest:dword, src:dword, maxlen:dword |
||
1143 | mov eax, [dest] |
||
1144 | mov esi, [src] |
||
1145 | mov ecx, [maxlen] |
||
1146 | test eax, eax |
||
1147 | jz .L9 |
||
1148 | test esi, esi |
||
1149 | jz .L9 |
||
1150 | test ecx, ecx |
||
1151 | jz .L9 |
||
1152 | |||
1153 | |||
1154 | jmp .L1 |
||
1155 | |||
1156 | |||
1157 | .L2: |
||
1158 | mov edx, [esi+eax] |
||
1159 | mov [eax], dl |
||
1160 | test dl, dl |
||
1161 | jz .L7 |
||
1162 | |||
1163 | |||
1164 | test dh, dh |
||
1165 | jz .L6 |
||
1166 | |||
1167 | |||
1168 | mov [eax+2],dl |
||
1169 | test dl, dl |
||
1170 | jz .L5 |
||
1171 | |||
1172 | |||
1173 | test dh, dh |
||
1174 | jz .L4 |
||
1175 | add eax, 4 |
||
1176 | .L1: |
||
1177 | sub ecx, 4 |
||
1178 | jae .L2 |
||
1179 | |||
1180 | |||
1181 | jz .L9 |
||
1182 | |||
1183 | |||
1184 | mov [eax], dl |
||
1185 | test dl, dl |
||
1186 | jz .L3 |
||
1187 | |||
1188 | |||
1189 | dec ecx |
||
1190 | jz .L9 |
||
1191 | |||
1192 | |||
1193 | mov [eax], dl |
||
1194 | test dl, dl |
||
1195 | jz .L3 |
||
1196 | |||
1197 | |||
1198 | dec ecx |
||
1199 | jz .L9 |
||
1200 | |||
1201 | |||
1202 | mov [eax], dl |
||
1203 | test dl, dl |
||
1204 | jz .L3 |
||
1205 | |||
1206 | |||
1207 | jmp .L9 |
||
1208 | |||
1209 | |||
1210 | inc eax |
||
1211 | |||
1212 | |||
1213 | inc eax |
||
1214 | |||
1215 | |||
1216 | inc eax |
||
1217 | .L7: |
||
1218 | add ecx,3 |
||
1219 | jz .L9 |
||
1220 | .L8: |
||
1221 | mov byte [ecx+eax], 0 |
||
1222 | .L3: |
||
1223 | dec ecx |
||
1224 | jnz .L8 |
||
1225 | .L9: |
||
1226 | ret |
||
1227 | endp |
||
1228 | |||
1229 | |||
1230 | |||
1231 | |||
1232 | |||
1233 | |||
1234 | mov eax,[esp+4] |
||
1235 | mov edx, 3 |
||
1236 | |||
1237 | |||
1238 | jz .L1 |
||
1239 | jp .L0 |
||
1240 | |||
1241 | |||
1242 | je .L2 |
||
1243 | |||
1244 | |||
1245 | cmp dh, byte [eax] |
||
1246 | |||
1247 | |||
1248 | |||
1249 | |||
1250 | xor edx, 2 |
||
1251 | |||
1252 | |||
1253 | .L0: |
||
1254 | cmp dh, [eax] |
||
1255 | je .L2 |
||
1256 | |||
1257 | |||
1258 | xor edx, edx |
||
1259 | |||
1260 | |||
1261 | mov ecx, [eax] |
||
1262 | add eax, 4 |
||
1263 | |||
1264 | |||
1265 | add ecx, magic |
||
1266 | |||
1267 | |||
1268 | jnc .L3 |
||
1269 | |||
1270 | |||
1271 | and edx, not magic |
||
1272 | jne .L3 |
||
1273 | |||
1274 | |||
1275 | add eax, 4 |
||
1276 | |||
1277 | |||
1278 | add ecx, magic |
||
1279 | dec edx |
||
1280 | jnc .L3 |
||
1281 | |||
1282 | |||
1283 | and edx, not magic |
||
1284 | jne .L3 |
||
1285 | |||
1286 | |||
1287 | add eax, 4 |
||
1288 | |||
1289 | |||
1290 | add ecx, magic |
||
1291 | |||
1292 | |||
1293 | jnc .L3 |
||
1294 | |||
1295 | |||
1296 | |||
1297 | |||
1298 | jne .L3 |
||
1299 | |||
1300 | |||
1301 | add eax, 4 |
||
1302 | |||
1303 | |||
1304 | add ecx, magic |
||
1305 | |||
1306 | |||
1307 | jnc .L3 |
||
1308 | |||
1309 | |||
1310 | |||
1311 | |||
1312 | je .L1 |
||
1313 | |||
1314 | |||
1315 | sub ecx, magic |
||
1316 | |||
1317 | |||
1318 | jz .L2 |
||
1319 | |||
1320 | |||
1321 | test ch, ch |
||
1322 | jz .L2 |
||
1323 | |||
1324 | |||
1325 | inc eax |
||
1326 | |||
1327 | |||
1328 | jz .L2 |
||
1329 | |||
1330 | |||
1331 | |||
1332 | |||
1333 | sub eax, [esp+4] |
||
1334 | ret |
||
1335 | |||
1336 | |||
1337 | |||
388 | serge | 1338 | |
1339 | push eax |
||
1340 | push edx |
||
1341 | mov edx, 0x400 ;bochs |
||
420 | serge | 1342 | mov al,0xff ;bochs |
1343 | out dx, al ;bochs |
||
1344 | pop edx |
||
388 | serge | 1345 | pop eax |
1346 | end if0>> |
||
1347 |