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Rev | Author | Line No. | Line |
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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: 2971 $ |
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 | |||
890 | serge | 32 | align 4 |
33 | _MapIoMem: |
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741 | serge | 34 | proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
35 | |||
36 | push edi |
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864 | serge | 37 | |
38 | mov ecx, [size] |
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39 | add ecx, 4095 |
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40 | and ecx, -4096 |
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41 | mov [size], ecx |
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42 | xor edx, edx |
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43 | call @mem_alloc@8 |
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741 | serge | 44 | test eax, eax |
45 | jz .fail |
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46 | |||
864 | serge | 47 | mov edx, eax |
48 | mov edi, eax |
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49 | shr edi, 10 |
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50 | add edi, page_tabs |
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51 | |||
52 | mov ecx, [size] |
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741 | serge | 53 | shr ecx, 12 |
864 | serge | 54 | mov eax, [base] |
55 | and eax, -4096 |
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56 | or eax, [flags] |
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741 | serge | 57 | @@: |
864 | serge | 58 | stosd |
59 | add eax, 0x1000 |
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741 | serge | 60 | loop @B |
61 | |||
864 | serge | 62 | mov eax, [base] |
63 | and eax, 4095 |
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741 | serge | 64 | add eax, edx |
65 | .fail: |
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66 | pop edi |
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67 | ret |
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68 | endp |
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69 | |||
279 | serge | 70 | ; param |
328 | serge | 71 | ; eax= page base + page flags |
819 | serge | 72 | ; ebx= linear address |
281 | serge | 73 | ; ecx= count |
74 | |||
75 | align 4 |
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890 | serge | 76 | _CommitPages: |
328 | serge | 77 | commit_pages: |
741 | serge | 78 | push edi |
328 | serge | 79 | test ecx, ecx |
80 | jz .fail |
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281 | serge | 81 | |
328 | serge | 82 | mov edi, ebx |
83 | mov ebx, pg_data.pg_mutex |
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84 | call wait_mutex ;ebx |
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85 | |||
86 | mov edx, 0x1000 |
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87 | mov ebx, edi |
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88 | shr ebx, 12 |
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89 | @@: |
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365 | serge | 90 | mov [page_tabs+ebx*4], eax |
819 | serge | 91 | ; push eax |
92 | ; invlpg [edi] |
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93 | ; pop eax |
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328 | serge | 94 | add edi, edx |
95 | add eax, edx |
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96 | inc ebx |
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97 | dec ecx |
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98 | jnz @B |
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99 | mov [pg_data.pg_mutex],ecx |
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100 | .fail: |
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741 | serge | 101 | pop edi |
281 | serge | 102 | ret |
103 | |||
328 | serge | 104 | |
281 | serge | 105 | ; param |
279 | serge | 106 | ; eax= base |
281 | serge | 107 | ; ecx= count |
279 | serge | 108 | |
164 | serge | 109 | align 4 |
279 | serge | 110 | release_pages: |
321 | diamond | 111 | |
112 | pushad |
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279 | serge | 113 | mov ebx, pg_data.pg_mutex |
114 | call wait_mutex ;ebx |
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115 | |||
116 | mov esi, eax |
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117 | mov edi, eax |
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118 | |||
119 | shr esi, 10 |
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365 | serge | 120 | add esi, page_tabs |
328 | serge | 121 | |
279 | serge | 122 | @@: |
123 | xor eax, eax |
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124 | xchg eax, [esi] |
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837 | serge | 125 | push eax |
279 | serge | 126 | invlpg [edi] |
837 | serge | 127 | pop eax |
279 | serge | 128 | .next: |
129 | add edi, 0x1000 |
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130 | add esi, 4 |
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131 | dec ecx |
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132 | jnz @B |
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133 | and [pg_data.pg_mutex],0 |
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321 | diamond | 134 | popad |
279 | serge | 135 | ret |
136 | |||
819 | serge | 137 | ; param |
138 | ; eax= base |
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139 | ; ecx= count |
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140 | |||
279 | serge | 141 | align 4 |
890 | serge | 142 | _UnmapPages: |
819 | serge | 143 | unmap_pages: |
144 | |||
145 | push edi |
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146 | |||
147 | mov edi, eax |
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148 | mov edx, eax |
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149 | |||
150 | shr edi, 10 |
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151 | add edi, page_tabs |
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152 | |||
153 | xor eax, eax |
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154 | @@: |
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155 | stosd |
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156 | invlpg [edx] |
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157 | add edx, 0x1000 |
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158 | loop @b |
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159 | |||
160 | pop edi |
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161 | ret |
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162 | |||
163 | |||
164 | align 4 |
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188 | serge | 165 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
321 | diamond | 166 | push ebx |
164 | serge | 167 | mov ebx, [lin_addr] |
168 | shr ebx, 22 |
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169 | mov eax, [phis_addr] |
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170 | and eax, not 0xFFF |
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171 | or eax, PG_UW ;+PG_NOCACHE |
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378 | serge | 172 | mov dword [master_tab+ebx*4], eax |
164 | serge | 173 | mov eax, [lin_addr] |
174 | shr eax, 10 |
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365 | serge | 175 | add eax, page_tabs |
164 | serge | 176 | invlpg [eax] |
321 | diamond | 177 | pop ebx |
164 | serge | 178 | ret |
179 | endp |
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180 | |||
378 | serge | 181 | |
164 | serge | 182 | align 4 |
183 | proc new_mem_resize stdcall, new_size:dword |
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184 | |||
276 | serge | 185 | mov ebx, pg_data.pg_mutex |
186 | call wait_mutex ;ebx |
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164 | serge | 187 | |
188 | mov edi, [new_size] |
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189 | add edi,4095 |
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190 | and edi,not 4095 |
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191 | mov [new_size], edi |
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192 | |||
465 | serge | 193 | mov edx,[current_slot] |
194 | cmp [edx+APPDATA.heap_base],0 |
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172 | serge | 195 | jne .exit |
196 | |||
465 | serge | 197 | mov esi, [edx+APPDATA.mem_size] |
164 | serge | 198 | add esi, 4095 |
199 | and esi, not 4095 |
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200 | |||
201 | cmp edi, esi |
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202 | jae .expand |
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203 | |||
204 | shr edi, 12 |
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205 | shr esi, 12 |
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206 | @@: |
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888 | serge | 207 | mov ecx, [app_page_tabs+edi*4] |
208 | test ecx, 1 |
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164 | serge | 209 | jz .next |
889 | serge | 210 | |
378 | serge | 211 | mov dword [app_page_tabs+edi*4], 2 |
164 | serge | 212 | mov ebx, edi |
213 | shl ebx, 12 |
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659 | serge | 214 | invlpg [ebx] |
1066 | serge | 215 | call @frame_free@4 |
888 | serge | 216 | .next: |
217 | add edi, 1 |
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164 | serge | 218 | cmp edi, esi |
219 | jb @B |
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220 | |||
221 | .update_size: |
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465 | serge | 222 | mov ebx, [new_size] |
1066 | serge | 223 | mov edx, [current_slot] |
224 | |||
465 | serge | 225 | call update_mem_size |
164 | serge | 226 | |
227 | xor eax, eax |
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228 | dec [pg_data.pg_mutex] |
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229 | ret |
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230 | .expand: |
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231 | |||
232 | push esi |
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233 | push edi |
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234 | |||
235 | add edi, 0x3FFFFF |
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236 | and edi, not(0x3FFFFF) |
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237 | add esi, 0x3FFFFF |
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238 | and esi, not(0x3FFFFF) |
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239 | |||
240 | cmp esi, edi |
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241 | jae .grow |
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242 | |||
243 | xchg esi, edi |
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244 | |||
245 | @@: |
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854 | serge | 246 | call _alloc_page |
164 | serge | 247 | test eax, eax |
248 | jz .exit |
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249 | |||
188 | serge | 250 | stdcall map_page_table, edi, eax |
164 | serge | 251 | |
252 | push edi |
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253 | shr edi, 10 |
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365 | serge | 254 | add edi, page_tabs |
164 | serge | 255 | mov ecx, 1024 |
256 | xor eax, eax |
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257 | cld |
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258 | rep stosd |
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259 | pop edi |
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260 | |||
261 | add edi, 0x00400000 |
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262 | cmp edi, esi |
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263 | jb @B |
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264 | .grow: |
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265 | pop edi |
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266 | pop esi |
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267 | @@: |
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2971 | Serge | 268 | |
854 | serge | 269 | call _alloc_page |
164 | serge | 270 | test eax, eax |
271 | jz .exit |
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272 | stdcall map_page,esi,eax,dword PG_UW |
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273 | |||
274 | push edi |
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275 | mov edi, esi |
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276 | xor eax, eax |
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277 | mov ecx, 1024 |
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278 | cld |
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279 | rep stosd |
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280 | pop edi |
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281 | |||
282 | add esi, 0x1000 |
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283 | cmp esi, edi |
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294 | diamond | 284 | jb @B |
164 | serge | 285 | |
286 | jmp .update_size |
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287 | .exit: |
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288 | xor eax, eax |
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289 | inc eax |
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290 | dec [pg_data.pg_mutex] |
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291 | ret |
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292 | endp |
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293 | |||
294 | diamond | 294 | update_mem_size: |
465 | serge | 295 | ; in: edx = slot base |
294 | diamond | 296 | ; ebx = new memory size |
297 | ; destroys eax,ecx,edx |
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298 | |||
465 | serge | 299 | mov [APPDATA.mem_size+edx],ebx |
294 | diamond | 300 | ;search threads and update |
301 | ;application memory size infomation |
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465 | serge | 302 | mov ecx,[APPDATA.dir_table+edx] |
294 | diamond | 303 | mov eax,2 |
304 | |||
305 | .search_threads: |
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306 | ;eax = current slot |
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307 | ;ebx = new memory size |
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308 | ;ecx = page directory |
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309 | cmp eax,[TASK_COUNT] |
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310 | jg .search_threads_end |
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311 | mov edx,eax |
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312 | shl edx,5 |
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313 | cmp word [CURRENT_TASK+edx+TASKDATA.state],9 ;if slot empty? |
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314 | jz .search_threads_next |
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315 | shl edx,3 |
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380 | serge | 316 | cmp [SLOT_BASE+edx+APPDATA.dir_table],ecx ;if it is our thread? |
294 | diamond | 317 | jnz .search_threads_next |
380 | serge | 318 | mov [SLOT_BASE+edx+APPDATA.mem_size],ebx ;update memory size |
294 | diamond | 319 | .search_threads_next: |
320 | inc eax |
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321 | jmp .search_threads |
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322 | .search_threads_end: |
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323 | ret |
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324 | |||
285 | serge | 325 | ; param |
326 | ; eax= linear address |
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327 | ; |
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328 | ; retval |
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329 | ; eax= phisical page address |
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330 | |||
164 | serge | 331 | align 4 |
890 | serge | 332 | _GetPgAddr: |
285 | serge | 333 | get_pg_addr: |
897 | serge | 334 | |
335 | cmp eax, OS_BASE |
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336 | jae @F |
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337 | |||
285 | serge | 338 | shr eax, 12 |
365 | serge | 339 | mov eax, [page_tabs+eax*4] |
164 | serge | 340 | and eax, 0xFFFFF000 |
341 | ret |
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897 | serge | 342 | @@: |
343 | sub eax, OS_BASE |
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344 | and eax, 0xFFFFF000 |
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345 | ret |
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164 | serge | 346 | |
188 | serge | 347 | align 4 |
164 | serge | 348 | proc page_fault_handler |
465 | serge | 349 | |
709 | diamond | 350 | test byte [esp+12+2], 2 |
351 | jnz v86_page_fault |
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352 | |||
465 | serge | 353 | .err_code equ ebp+32 |
354 | .err_addr equ ebp-4 |
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355 | |||
164 | serge | 356 | pushad |
357 | mov ebp, esp |
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358 | mov eax, cr2 |
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172 | serge | 359 | push eax |
164 | serge | 360 | |
928 | serge | 361 | mov ax, sel_app_data |
164 | serge | 362 | mov ds, ax |
188 | serge | 363 | mov es, ax |
164 | serge | 364 | |
188 | serge | 365 | inc [pg_data.pages_faults] |
366 | |||
465 | serge | 367 | mov ebx, [.err_addr] |
368 | mov eax, [.err_code] |
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164 | serge | 369 | |
839 | serge | 370 | cmp ebx, HEAP_BASE |
465 | serge | 371 | jb .user_space ;ñòðàíèöà â ïàìÿòè ïðèëîæåíèÿ ; |
188 | serge | 372 | |
928 | serge | 373 | cmp ebx, page_tabs |
839 | serge | 374 | jb .kernel_heap |
375 | |||
861 | serge | 376 | cmp ebx, heap_tabs |
377 | jb .user_tabs |
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378 | |||
928 | serge | 379 | cmp ebx, LFB_BASE |
861 | serge | 380 | jb .heap_tab |
839 | serge | 381 | |
928 | serge | 382 | cmp ebx, OS_BASE |
383 | jb .lfb |
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839 | serge | 384 | |
385 | ; cmp ebx, kernel_tabs |
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386 | ; jb .alloc;.app_tabs ;òàáëèöû ñòðàíèö ïðèëîæåíèÿ ; |
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465 | serge | 387 | ;ïðîñòî ñîçäàäèì îäíó |
378 | serge | 388 | |
465 | serge | 389 | .lfb: |
839 | serge | 390 | shr ebx, 22 |
848 | serge | 391 | mov edx, [_sys_pdbr + ebx*4] |
839 | serge | 392 | mov [master_tab + ebx*4], edx |
393 | jmp .exit |
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164 | serge | 394 | |
861 | serge | 395 | .user_tabs: |
396 | shr ebx, 12 |
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397 | and ebx, 0x3FF |
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398 | mov edx, [master_tab + ebx*4] |
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399 | test edx, PG_MAP |
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400 | jnz .fail |
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839 | serge | 401 | |
861 | serge | 402 | call _alloc_page |
403 | test eax, eax |
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404 | jz .fail |
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405 | |||
406 | lea edx, [eax + PG_UW] |
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407 | lea edi, [eax + OS_BASE] |
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408 | mov ecx, 1024 |
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409 | xor eax, eax |
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410 | cld |
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411 | rep stosd |
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412 | |||
413 | mov [master_tab + ebx*4], edx |
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414 | jmp .exit |
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415 | |||
416 | .heap_tab: |
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839 | serge | 417 | shr ebx, 12 |
418 | and ebx, 0x3FF |
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419 | mov edx, [master_tab + ebx*4] |
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420 | test edx, PG_MAP |
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421 | jz .check_ptab ;òàáëèöà ñòðàíèö íå ñîçäàíà |
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422 | |||
861 | serge | 423 | jmp .fail |
424 | |||
465 | serge | 425 | align 4 |
839 | serge | 426 | .kernel_heap: |
427 | |||
1066 | serge | 428 | ; xchg bx, bx |
429 | |||
839 | serge | 430 | shr ebx, 22 |
431 | mov edx, [master_tab + ebx*4] |
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862 | serge | 432 | |
839 | serge | 433 | test edx, PG_MAP |
434 | jz .check_ptab ;òàáëèöà ñòðàíèö íå ñîçäàíà |
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435 | |||
1066 | serge | 436 | mov ecx, [.err_addr] |
437 | mov edx, [.err_code] |
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438 | |||
439 | call @heap_fault@8 |
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440 | |||
862 | serge | 441 | jmp .exit |
854 | serge | 442 | |
839 | serge | 443 | .check_ptab: |
848 | serge | 444 | mov edx, [_sys_pdbr + ebx*4] |
839 | serge | 445 | test edx, PG_MAP |
446 | jnz @F |
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447 | |||
1066 | serge | 448 | call _alloc_page |
839 | serge | 449 | test eax, eax |
450 | jz .fail |
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451 | |||
452 | lea edx, [eax + PG_UW] |
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453 | lea edi, [eax + OS_BASE] |
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454 | mov ecx, 1024 |
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455 | xor eax, eax |
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456 | cld |
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457 | rep stosd |
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458 | |||
848 | serge | 459 | mov [_sys_pdbr + ebx*4], edx |
839 | serge | 460 | @@: |
461 | mov [master_tab + ebx*4], edx |
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462 | jmp .exit |
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463 | |||
464 | align 4 |
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164 | serge | 465 | .user_space: |
465 | serge | 466 | test eax, PG_MAP |
467 | jnz .err_access ;Ñòðàíèöà ïðèñóòñòâóåò |
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468 | ;Îøèáêà äîñòóïà ? |
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469 | |||
164 | serge | 470 | shr ebx, 12 |
172 | serge | 471 | mov ecx, ebx |
472 | shr ecx, 10 |
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839 | serge | 473 | mov edx, [master_tab + ecx*4] |
465 | serge | 474 | test edx, PG_MAP |
475 | jz .fail ;òàáëèöà ñòðàíèö íå ñîçäàíà |
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476 | ;íåâåðíûé àäðåñ â ïðîãðàììå |
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172 | serge | 477 | |
365 | serge | 478 | mov eax, [page_tabs+ebx*4] |
164 | serge | 479 | test eax, 2 |
465 | serge | 480 | jz .fail ;àäðåñ íå çàðåçåðâèðîâàí äëÿ ; |
481 | ;èñïîëüçîâàíèÿ. Îøèáêà |
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188 | serge | 482 | .alloc: |
854 | serge | 483 | call _alloc_page |
566 | serge | 484 | test eax, eax |
465 | serge | 485 | jz .fail |
164 | serge | 486 | |
487 | stdcall map_page,[ebp-4],eax,dword PG_UW |
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488 | |||
188 | serge | 489 | mov edi, [ebp-4] |
490 | and edi, 0xFFFFF000 |
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164 | serge | 491 | mov ecx, 1024 |
492 | xor eax, eax |
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188 | serge | 493 | cld |
494 | rep stosd |
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164 | serge | 495 | .exit: |
496 | mov esp, ebp |
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497 | popad |
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498 | add esp, 4 |
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499 | iretd |
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465 | serge | 500 | |
501 | .err_access: |
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502 | ;íèêîãäà íå ïðîèñõîäèò |
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503 | jmp .fail |
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504 | |||
505 | .kernel_space: |
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506 | test eax, PG_MAP |
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507 | jz .fail ;ñòðàíèöà íå ïðèñóòñòâóåò |
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508 | |||
509 | test eax, 4 ;U/S |
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510 | jnz .fail ;ïðèëîæåíèå îáðàòèëîñü ê ïàìÿòè |
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511 | ;ÿäðà |
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512 | test eax, 8 |
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513 | jnz .fail ;óñòàíîâëåí çàðåçåðâèðîâàííûé áèò |
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514 | ;â òàáëèöàõ ñòðàíèö. äîáàâëåíî â P4/Xeon |
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515 | |||
516 | ;ïîïûòêà çàïèñè â çàùèù¸ííóþ ñòðàíèöó ÿäðà |
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517 | |||
518 | cmp ebx, tss._io_map_0 |
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519 | jb .fail |
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520 | |||
521 | cmp ebx, tss._io_map_0+8192 |
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522 | jae .fail |
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523 | |||
524 | ; io permission map |
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525 | ; copy-on-write protection |
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526 | |||
854 | serge | 527 | call _alloc_page |
566 | serge | 528 | test eax, eax |
465 | serge | 529 | jz .fail |
530 | |||
531 | push eax |
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532 | stdcall map_page,[ebp-4],eax,dword PG_SW |
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533 | pop eax |
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534 | mov edi, [.err_addr] |
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535 | and edi, -4096 |
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536 | lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0 |
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537 | |||
538 | mov ebx, esi |
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539 | shr ebx, 12 |
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540 | mov edx, [current_slot] |
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541 | or eax, PG_SW |
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542 | mov [edx+APPDATA.io_map+ebx*4], eax |
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543 | |||
544 | add esi, [default_io_map] |
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545 | mov ecx, 4096/4 |
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546 | cld |
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547 | rep movsd |
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548 | jmp .exit |
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549 | |||
550 | |||
551 | ;íå îáðàáàòûâàåì. Îøèáêà |
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552 | |||
172 | serge | 553 | .fail: |
554 | mov esp, ebp |
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555 | popad |
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556 | add esp, 4 |
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164 | serge | 557 | |
1066 | serge | 558 | iretd |
465 | serge | 559 | |
172 | serge | 560 | save_ring3_context ;debugger support |
561 | |||
562 | mov bl, 14 |
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563 | jmp exc_c |
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564 | iretd |
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164 | serge | 565 | endp |
566 | |||
567 | align 4 |
||
568 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
||
569 | ofs:dword,buf_size:dword |
||
570 | mov eax, [buf_size] |
||
571 | test eax, eax |
||
572 | jz .exit |
||
573 | |||
574 | mov eax, [pdir] |
||
575 | and eax, 0xFFFFF000 |
||
576 | |||
536 | diamond | 577 | stdcall map_page,[ipc_pdir],eax,PG_UW |
164 | serge | 578 | mov ebx, [ofs] |
579 | shr ebx, 22 |
||
580 | mov esi, [ipc_pdir] |
||
581 | mov edi, [ipc_ptab] |
||
582 | mov eax, [esi+ebx*4] |
||
583 | and eax, 0xFFFFF000 |
||
584 | jz .exit |
||
536 | diamond | 585 | stdcall map_page,edi,eax,PG_UW |
164 | serge | 586 | ; inc ebx |
587 | ; add edi, 0x1000 |
||
588 | ; mov eax, [esi+ebx*4] |
||
589 | ; test eax, eax |
||
590 | ; jz @f |
||
591 | ; and eax, 0xFFFFF000 |
||
592 | ; stdcall map_page, edi, eax |
||
593 | |||
594 | @@: mov edi, [lin_addr] |
||
595 | and edi, 0xFFFFF000 |
||
596 | mov ecx, [buf_size] |
||
597 | add ecx, 4095 |
||
598 | shr ecx, 12 |
||
599 | inc ecx |
||
600 | |||
601 | mov edx, [ofs] |
||
602 | shr edx, 12 |
||
603 | and edx, 0x3FF |
||
604 | mov esi, [ipc_ptab] |
||
605 | |||
606 | .map: mov eax, [esi+edx*4] |
||
607 | and eax, 0xFFFFF000 |
||
536 | diamond | 608 | jz .exit |
609 | stdcall map_page,edi,eax,PG_UW |
||
610 | dec ecx |
||
611 | jz .exit |
||
164 | serge | 612 | add edi, 0x1000 |
613 | inc edx |
||
536 | diamond | 614 | cmp edx, 0x400 |
164 | serge | 615 | jnz .map |
536 | diamond | 616 | inc ebx |
617 | mov eax, [ipc_pdir] |
||
618 | mov eax, [eax+ebx*4] |
||
619 | and eax, 0xFFFFF000 |
||
620 | jz .exit |
||
621 | stdcall map_page,esi,eax,PG_UW |
||
622 | xor edx, edx |
||
623 | jmp .map |
||
164 | serge | 624 | |
625 | .exit: |
||
626 | ret |
||
627 | endp |
||
628 | |||
629 | align 4 |
||
630 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
||
631 | ofs:dword,buf_size:dword |
||
632 | mov eax, [buf_size] |
||
633 | test eax, eax |
||
634 | jz .exit |
||
635 | |||
636 | mov eax, [pdir] |
||
637 | and eax, 0xFFFFF000 |
||
638 | |||
639 | stdcall map_page,[proc_mem_pdir],eax,dword PG_UW |
||
640 | mov ebx, [ofs] |
||
641 | shr ebx, 22 |
||
642 | mov esi, [proc_mem_pdir] |
||
643 | mov edi, [proc_mem_tab] |
||
644 | mov eax, [esi+ebx*4] |
||
645 | and eax, 0xFFFFF000 |
||
646 | test eax, eax |
||
647 | jz .exit |
||
648 | stdcall map_page,edi,eax,dword PG_UW |
||
649 | |||
650 | @@: mov edi, [lin_addr] |
||
651 | and edi, 0xFFFFF000 |
||
652 | mov ecx, [buf_size] |
||
653 | add ecx, 4095 |
||
654 | shr ecx, 12 |
||
655 | inc ecx |
||
656 | |||
657 | mov edx, [ofs] |
||
658 | shr edx, 12 |
||
659 | and edx, 0x3FF |
||
660 | mov esi, [proc_mem_tab] |
||
661 | |||
662 | .map: mov eax, [esi+edx*4] |
||
663 | ; and eax, 0xFFFFF000 |
||
664 | ; test eax, eax |
||
665 | ; jz .exit |
||
666 | stdcall map_page,edi,eax,dword PG_UW |
||
667 | add edi, 0x1000 |
||
668 | inc edx |
||
669 | dec ecx |
||
670 | jnz .map |
||
671 | .exit: |
||
672 | ret |
||
673 | endp |
||
674 | |||
675 | |||
676 | |||
677 | |||
678 | sys_IPC: |
||
679 | ;input: |
||
680 | ; eax=1 - set ipc buffer area |
||
681 | ; ebx=address of buffer |
||
682 | ; ecx=size of buffer |
||
683 | ; eax=2 - send message |
||
684 | ; ebx=PID |
||
685 | ; ecx=address of message |
||
686 | ; edx=size of message |
||
687 | |||
688 | cmp eax,1 |
||
689 | jne @f |
||
690 | call set_ipc_buff |
||
691 | mov [esp+36], eax |
||
692 | ret |
||
693 | @@: |
||
694 | cmp eax, 2 |
||
695 | jne @f |
||
696 | stdcall sys_ipc_send, ebx, ecx, edx |
||
697 | mov [esp+36], eax |
||
698 | ret |
||
699 | @@: |
||
700 | xor eax, eax |
||
701 | not eax |
||
702 | mov [esp+36], eax |
||
703 | ret |
||
704 | |||
705 | align 4 |
||
706 | proc set_ipc_buff |
||
707 | |||
465 | serge | 708 | mov eax,[current_slot] |
164 | serge | 709 | pushf |
710 | cli |
||
465 | serge | 711 | mov [eax+APPDATA.ipc_start],ebx ;set fields in extended information area |
712 | mov [eax+APPDATA.ipc_size],ecx |
||
164 | serge | 713 | |
714 | add ecx, ebx |
||
715 | add ecx, 4095 |
||
716 | and ecx, not 4095 |
||
717 | |||
718 | .touch: mov eax, [ebx] |
||
719 | add ebx, 0x1000 |
||
720 | cmp ebx, ecx |
||
536 | diamond | 721 | jb .touch |
164 | serge | 722 | |
723 | popf |
||
724 | xor eax, eax |
||
725 | ret |
||
726 | endp |
||
727 | |||
728 | proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword |
||
729 | locals |
||
730 | dst_slot dd ? |
||
731 | dst_offset dd ? |
||
732 | buf_size dd ? |
||
536 | diamond | 733 | used_buf dd ? |
164 | serge | 734 | endl |
735 | |||
736 | pushf |
||
737 | cli |
||
738 | |||
739 | mov eax, [PID] |
||
740 | call pid_to_slot |
||
741 | test eax,eax |
||
742 | jz .no_pid |
||
743 | |||
744 | mov [dst_slot], eax |
||
745 | shl eax,8 |
||
380 | serge | 746 | mov edi,[eax+SLOT_BASE+0xa0] ;is ipc area defined? |
164 | serge | 747 | test edi,edi |
748 | jz .no_ipc_area |
||
749 | |||
750 | mov ebx, edi |
||
751 | and ebx, 0xFFF |
||
752 | mov [dst_offset], ebx |
||
753 | |||
380 | serge | 754 | mov esi, [eax+SLOT_BASE+0xa4] |
164 | serge | 755 | mov [buf_size], esi |
756 | |||
536 | diamond | 757 | mov ecx, [ipc_tmp] |
758 | cmp esi, 0x40000-0x1000 ; size of [ipc_tmp] minus one page |
||
759 | jbe @f |
||
864 | serge | 760 | push eax |
761 | lea ecx, [esi+0x1000] |
||
762 | xor edx, edx |
||
763 | call @mem_alloc@8 |
||
536 | diamond | 764 | mov ecx, eax |
864 | serge | 765 | pop eax |
536 | diamond | 766 | @@: |
767 | mov [used_buf], ecx |
||
768 | stdcall map_mem, ecx, [SLOT_BASE+eax+0xB8],\ |
||
164 | serge | 769 | edi, esi |
770 | |||
771 | mov edi, [dst_offset] |
||
536 | diamond | 772 | add edi, [used_buf] |
164 | serge | 773 | cmp dword [edi], 0 |
774 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
227 | serge | 775 | |
566 | serge | 776 | mov edx, dword [edi+4] |
777 | lea ebx, [edx+8] |
||
164 | serge | 778 | add ebx, [msg_size] |
779 | cmp ebx, [buf_size] |
||
780 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
227 | serge | 781 | |
164 | serge | 782 | mov dword [edi+4], ebx |
783 | mov eax,[TASK_BASE] |
||
784 | mov eax, [eax+0x04] ;eax - our PID |
||
785 | add edi, edx |
||
786 | mov [edi], eax |
||
787 | mov ecx, [msg_size] |
||
788 | |||
789 | mov [edi+4], ecx |
||
790 | add edi, 8 |
||
791 | mov esi, [msg_addr] |
||
792 | cld |
||
793 | rep movsb |
||
794 | |||
795 | mov ebx, [ipc_tmp] |
||
796 | mov edx, ebx |
||
797 | shr ebx, 12 |
||
798 | xor eax, eax |
||
365 | serge | 799 | mov [page_tabs+ebx*4], eax |
164 | serge | 800 | invlpg [edx] |
801 | |||
802 | mov ebx, [ipc_pdir] |
||
803 | mov edx, ebx |
||
804 | shr ebx, 12 |
||
805 | xor eax, eax |
||
365 | serge | 806 | mov [page_tabs+ebx*4], eax |
164 | serge | 807 | invlpg [edx] |
808 | |||
809 | mov ebx, [ipc_ptab] |
||
810 | mov edx, ebx |
||
811 | shr ebx, 12 |
||
812 | xor eax, eax |
||
365 | serge | 813 | mov [page_tabs+ebx*4], eax |
164 | serge | 814 | invlpg [edx] |
815 | |||
816 | mov eax, [dst_slot] |
||
817 | shl eax, 8 |
||
380 | serge | 818 | or [eax+SLOT_BASE+0xA8],dword 0x40 |
164 | serge | 819 | cmp dword [check_idle_semaphore],20 |
820 | jge .ipc_no_cis |
||
821 | |||
822 | mov dword [check_idle_semaphore],5 |
||
823 | .ipc_no_cis: |
||
536 | diamond | 824 | push 0 |
825 | jmp .ret |
||
164 | serge | 826 | .no_pid: |
827 | popf |
||
536 | diamond | 828 | mov eax, 4 |
164 | serge | 829 | ret |
830 | .no_ipc_area: |
||
831 | popf |
||
832 | xor eax, eax |
||
833 | inc eax |
||
834 | ret |
||
835 | .ipc_blocked: |
||
536 | diamond | 836 | push 2 |
837 | jmp .ret |
||
164 | serge | 838 | .buffer_overflow: |
536 | diamond | 839 | push 3 |
840 | .ret: |
||
890 | serge | 841 | mov ecx, [used_buf] |
842 | cmp ecx, [ipc_tmp] |
||
536 | diamond | 843 | jz @f |
890 | serge | 844 | |
845 | call @mem_free@4 |
||
536 | diamond | 846 | @@: |
847 | pop eax |
||
164 | serge | 848 | popf |
849 | ret |
||
850 | endp |
||
851 | |||
852 | align 4 |
||
170 | serge | 853 | sysfn_meminfo: |
164 | serge | 854 | |
465 | serge | 855 | ; add ebx, new_app_base |
856 | cmp ebx, OS_BASE |
||
857 | jae .fail |
||
172 | serge | 858 | |
859 | serge | 859 | mov eax, [_mem_amount] |
860 | shr eax, 12 |
||
170 | serge | 861 | mov [ebx], eax |
172 | serge | 862 | shl eax, 12 |
863 | mov [esp+36], eax |
||
859 | serge | 864 | call _get_free_mem |
865 | mov [ebx+4], eax |
||
170 | serge | 866 | mov edx, [pg_data.pages_faults] |
867 | mov [ebx+8], edx |
||
868 | mov esi, [heap_size] |
||
869 | mov [ebx+12], esi |
||
870 | mov edi, [heap_free] |
||
871 | mov [ebx+16], edi |
||
872 | mov eax, [heap_blocks] |
||
873 | mov [ebx+20], eax |
||
874 | mov ecx, [free_blocks] |
||
875 | mov [ebx+24], ecx |
||
164 | serge | 876 | ret |
172 | serge | 877 | .fail: |
878 | mov dword [esp+36], -1 |
||
879 | ret |
||
164 | serge | 880 | |
881 | align 4 |
||
882 | new_services: |
||
883 | |||
884 | cmp eax,4 |
||
885 | jle sys_sheduler |
||
886 | |||
170 | serge | 887 | cmp eax, 11 |
164 | serge | 888 | jb .fail |
889 | ja @f |
||
890 | |||
188 | serge | 891 | call init_heap |
164 | serge | 892 | mov [esp+36], eax |
893 | ret |
||
894 | @@: |
||
895 | cmp eax, 12 |
||
896 | ja @f |
||
897 | |||
898 | stdcall user_alloc, ebx |
||
899 | mov [esp+36], eax |
||
900 | ret |
||
901 | @@: |
||
902 | cmp eax, 13 |
||
903 | ja @f |
||
904 | stdcall user_free, ebx |
||
905 | mov [esp+36], eax |
||
906 | ret |
||
907 | @@: |
||
908 | cmp eax, 14 |
||
909 | ja @f |
||
465 | serge | 910 | cmp ebx, OS_BASE |
911 | jae .fail |
||
227 | serge | 912 | stdcall get_event_ex, ebx, ecx |
913 | mov [esp+36], eax |
||
164 | serge | 914 | ret |
915 | @@: |
||
916 | cmp eax, 15 |
||
917 | ja @f |
||
465 | serge | 918 | mov ecx, [current_slot] |
919 | mov eax, [ecx+APPDATA.fpu_handler] |
||
920 | mov [ecx+APPDATA.fpu_handler], ebx |
||
164 | serge | 921 | mov [esp+36], eax |
922 | ret |
||
923 | @@: |
||
924 | cmp eax, 16 |
||
925 | ja @f |
||
926 | |||
188 | serge | 927 | test ebx, ebx |
928 | jz .fail |
||
465 | serge | 929 | cmp ebx, OS_BASE |
930 | jae .fail |
||
164 | serge | 931 | stdcall get_service, ebx |
932 | mov [esp+36], eax |
||
933 | ret |
||
934 | @@: |
||
935 | cmp eax, 17 |
||
936 | ja @f |
||
378 | serge | 937 | call srv_handlerEx ;ebx |
164 | serge | 938 | mov [esp+36], eax |
939 | ret |
||
168 | serge | 940 | @@: |
941 | cmp eax, 18 |
||
942 | ja @f |
||
465 | serge | 943 | mov ecx, [current_slot] |
944 | mov eax, [ecx+APPDATA.sse_handler] |
||
945 | mov [ecx+APPDATA.sse_handler], ebx |
||
168 | serge | 946 | mov [esp+36], eax |
947 | ret |
||
164 | serge | 948 | @@: |
198 | serge | 949 | cmp eax, 19 |
448 | diamond | 950 | ja @f |
465 | serge | 951 | cmp ebx, OS_BASE |
952 | jae .fail |
||
198 | serge | 953 | stdcall load_library, ebx |
954 | mov [esp+36], eax |
||
955 | ret |
||
448 | diamond | 956 | @@: |
490 | serge | 957 | cmp eax, 20 |
740 | serge | 958 | ja @F |
490 | serge | 959 | mov eax, ecx |
960 | call user_realloc |
||
961 | mov [esp+36], eax |
||
962 | ret |
||
740 | serge | 963 | @@: |
747 | serge | 964 | cmp eax, 21 ;for test purposes only |
928 | serge | 965 | ja .fail ;will be removed soon |
740 | serge | 966 | cmp ebx, OS_BASE |
967 | jae .fail |
||
968 | |||
889 | serge | 969 | mov ecx, ebx |
970 | call @load_pe_driver@4 |
||
740 | serge | 971 | mov [esp+36], eax |
972 | ret |
||
973 | |||
164 | serge | 974 | .fail: |
975 | xor eax, eax |
||
976 | mov [esp+36], eax |
||
977 | ret |
||
978 | |||
979 | align 4 |
||
980 | proc init_mtrr |
||
981 | |||
412 | serge | 982 | cmp [BOOT_VAR+0x901c],byte 2 |
164 | serge | 983 | je .exit |
984 | |||
211 | serge | 985 | bt [cpu_caps], CAPS_MTRR |
986 | jnc .exit |
||
987 | |||
164 | serge | 988 | mov eax, cr0 |
989 | or eax, 0x60000000 ;disable caching |
||
990 | mov cr0, eax |
||
991 | wbinvd ;invalidate cache |
||
992 | |||
993 | mov ecx, 0x2FF |
||
994 | rdmsr ; |
||
995 | push eax |
||
996 | |||
997 | xor edx, edx |
||
998 | xor eax, eax |
||
999 | mov ecx, 0x2FF |
||
1000 | wrmsr ;disable all MTRR |
||
1001 | |||
846 | serge | 1002 | mov eax, [_mem_amount] |
821 | diamond | 1003 | ; round eax up to next power of 2 |
1004 | dec eax |
||
1005 | bsr ecx, eax |
||
1006 | mov eax, 2 |
||
1007 | shl eax, cl |
||
1008 | stdcall set_mtrr, edx,edx,eax,MEM_WB |
||
1009 | stdcall set_mtrr, 1,[LFBAddress],[LFBSize],MEM_WC |
||
164 | serge | 1010 | xor edx, edx |
1011 | xor eax, eax |
||
1012 | mov ecx, 0x204 |
||
1013 | mov ebx, 6 |
||
1014 | @@: |
||
1015 | wrmsr ;disable unused MTRR |
||
1016 | inc ecx |
||
1017 | wrmsr |
||
1018 | inc ecx |
||
1019 | dec ebx |
||
1020 | jnz @b |
||
1021 | |||
1022 | wbinvd ;again invalidate |
||
1023 | |||
1024 | pop eax |
||
1025 | or eax, 0x800 ;set default memtype to UC |
||
1026 | and al, 0xF0 |
||
1027 | mov ecx, 0x2FF |
||
1028 | wrmsr ;and enable MTRR |
||
1029 | |||
1030 | mov eax, cr0 |
||
1031 | and eax, not 0x60000000 |
||
1032 | mov cr0, eax ; enable caching |
||
1033 | .exit: |
||
1034 | ret |
||
1035 | endp |
||
1036 | |||
1037 | align 4 |
||
1038 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1039 | |||
1040 | xor edx, edx |
||
1041 | mov eax, [base] |
||
1042 | or eax, [mem_type] |
||
1043 | mov ecx, [reg] |
||
1044 | lea ecx, [0x200+ecx*2] |
||
1045 | wrmsr |
||
1046 | |||
1047 | mov ebx, [size] |
||
1048 | dec ebx |
||
1049 | mov eax, 0xFFFFFFFF |
||
1050 | mov edx, 0x0000000F |
||
1051 | sub eax, ebx |
||
1052 | sbb edx, 0 |
||
1053 | or eax, 0x800 |
||
1054 | inc ecx |
||
1055 | wrmsr |
||
1056 | ret |
||
1057 | endp |
||
1058 | |||
465 | serge | 1059 | align 4 |
172 | serge | 1060 | proc stall stdcall, delay:dword |
1061 | push ecx |
||
1062 | push edx |
||
1063 | push ebx |
||
1064 | push eax |
||
1065 | |||
1066 | mov eax, [delay] |
||
1067 | mul [stall_mcs] |
||
1068 | mov ebx, eax ;low |
||
1069 | mov ecx, edx ;high |
||
1070 | rdtsc |
||
1071 | add ebx, eax |
||
1072 | adc ecx,edx |
||
1073 | @@: |
||
1074 | rdtsc |
||
1075 | sub eax, ebx |
||
1076 | sbb edx, ecx |
||
1077 | jb @B |
||
1078 | |||
1079 | pop eax |
||
1080 | pop ebx |
||
1081 | pop edx |
||
1082 | pop ecx |
||
1083 | ret |
||
1084 | endp |
||
1085 | |||
520 | serge | 1086 | align 4 |
890 | serge | 1087 | _CreateRingBuffer: |
520 | serge | 1088 | proc create_ring_buffer stdcall, size:dword, flags:dword |
1089 | locals |
||
1090 | buf_ptr dd ? |
||
1091 | endl |
||
237 | serge | 1092 | |
864 | serge | 1093 | mov ecx, [size] |
1094 | test ecx, 4095 |
||
1095 | jnz .fail |
||
520 | serge | 1096 | |
864 | serge | 1097 | add ecx, ecx |
1098 | xor edx, edx |
||
1099 | call @mem_alloc@8 |
||
520 | serge | 1100 | test eax, eax |
864 | serge | 1101 | mov [buf_ptr], eax |
520 | serge | 1102 | jz .fail |
1103 | |||
662 | serge | 1104 | push ebx |
1105 | |||
1066 | serge | 1106 | mov ecx, [size] |
1107 | shr ecx, 12 |
||
520 | serge | 1108 | |
1066 | serge | 1109 | mov ebx, ecx |
1110 | |||
1111 | call @frame_alloc@4 |
||
520 | serge | 1112 | test eax, eax |
1113 | jz .mm_fail |
||
1114 | |||
864 | serge | 1115 | or eax, [flags] |
1116 | mov edx, [buf_ptr] |
||
1117 | lea ecx, [ebx*4] |
||
1118 | shr edx, 10 |
||
520 | serge | 1119 | @@: |
864 | serge | 1120 | mov [page_tabs+edx], eax |
1121 | mov [page_tabs+edx+ecx], eax |
||
520 | serge | 1122 | add eax, 0x1000 |
864 | serge | 1123 | add edx, 4 |
1124 | dec ebx |
||
520 | serge | 1125 | jnz @B |
1126 | |||
1127 | mov eax, [buf_ptr] |
||
662 | serge | 1128 | pop ebx |
520 | serge | 1129 | ret |
1130 | .mm_fail: |
||
890 | serge | 1131 | mov ecx, [buf_ptr] |
1132 | call @mem_free@4 |
||
864 | serge | 1133 | pop ebx |
520 | serge | 1134 | xor eax, eax |
1135 | .fail: |
||
1136 | ret |
||
1137 | endp |
||
1138 | |||
465 | serge | 1139 | |
841 | serge | 1140 | align 4 |
1141 | _balloc: ; gcc fastcall |
||
843 | serge | 1142 | @balloc@4: |
841 | serge | 1143 | |
843 | serge | 1144 | mov eax, [_pg_balloc] |
841 | serge | 1145 | add ecx, 4095 |
1146 | and ecx, -4096 |
||
1147 | add ecx, eax |
||
843 | serge | 1148 | mov [_pg_balloc], ecx |
841 | serge | 1149 | add eax, OS_BASE |
1150 | ret0>> |
||
1151 |