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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: 819 $ |
9 | |||
10 | |||
164 | serge | 11 | align 4 |
12 | proc alloc_page |
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13 | |||
14 | pushfd |
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15 | cli |
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660 | serge | 16 | push ebx |
164 | serge | 17 | mov ebx, [page_start] |
18 | mov ecx, [page_end] |
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19 | .l1: |
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20 | bsf eax,[ebx]; |
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21 | jnz .found |
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22 | add ebx,4 |
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23 | cmp ebx, ecx |
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24 | jb .l1 |
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660 | serge | 25 | pop ebx |
164 | serge | 26 | popfd |
27 | xor eax,eax |
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28 | ret |
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29 | .found: |
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30 | btr [ebx], eax |
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31 | mov [page_start],ebx |
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32 | sub ebx, sys_pgmap |
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254 | serge | 33 | lea eax, [eax+ebx*8] |
164 | serge | 34 | shl eax, 12 |
35 | dec [pg_data.pages_free] |
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660 | serge | 36 | pop ebx |
164 | serge | 37 | popfd |
38 | ret |
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39 | endp |
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40 | |||
41 | align 4 |
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42 | proc alloc_pages stdcall, count:dword |
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43 | pushfd |
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660 | serge | 44 | push ebx |
45 | push edi |
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164 | serge | 46 | cli |
47 | mov eax, [count] |
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48 | add eax, 7 |
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49 | shr eax, 3 |
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50 | mov [count], eax |
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51 | cmp eax, [pg_data.pages_free] |
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52 | ja .fail |
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53 | |||
54 | mov ecx, [page_start] |
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55 | mov ebx, [page_end] |
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56 | .find: |
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57 | mov edx, [count] |
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58 | mov edi, ecx |
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59 | .match: |
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60 | cmp byte [ecx], 0xFF |
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61 | jne .next |
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62 | dec edx |
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63 | jz .ok |
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64 | inc ecx |
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65 | cmp ecx,ebx |
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66 | jb .match |
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660 | serge | 67 | .fail: |
68 | xor eax, eax |
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69 | pop edi |
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70 | pop ebx |
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164 | serge | 71 | popfd |
72 | ret |
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73 | .next: |
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74 | inc ecx |
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75 | cmp ecx, ebx |
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76 | jb .find |
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660 | serge | 77 | pop edi |
78 | pop ebx |
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164 | serge | 79 | popfd |
80 | xor eax, eax |
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81 | ret |
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82 | .ok: |
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83 | sub ecx, edi |
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84 | inc ecx |
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663 | serge | 85 | push esi |
164 | serge | 86 | mov esi, edi |
87 | xor eax, eax |
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88 | rep stosb |
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89 | sub esi, sys_pgmap |
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90 | shl esi, 3+12 |
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91 | mov eax, esi |
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92 | mov ebx, [count] |
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93 | shl ebx, 3 |
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94 | sub [pg_data.pages_free], ebx |
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663 | serge | 95 | pop esi |
660 | serge | 96 | pop edi |
97 | pop ebx |
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164 | serge | 98 | popfd |
99 | ret |
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100 | endp |
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101 | |||
102 | align 4 |
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103 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
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321 | diamond | 104 | push ebx |
164 | serge | 105 | mov eax, [phis_addr] |
106 | and eax, not 0xFFF |
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107 | or eax, [flags] |
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108 | mov ebx, [lin_addr] |
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109 | shr ebx, 12 |
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365 | serge | 110 | mov [page_tabs+ebx*4], eax |
164 | serge | 111 | mov eax, [lin_addr] |
112 | invlpg [eax] |
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321 | diamond | 113 | pop ebx |
164 | serge | 114 | ret |
115 | endp |
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116 | |||
117 | align 4 |
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281 | serge | 118 | map_space: ;not implemented |
119 | |||
120 | |||
121 | ret |
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122 | |||
123 | |||
124 | align 4 |
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164 | serge | 125 | proc free_page |
126 | ;arg: eax page address |
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127 | pushfd |
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128 | cli |
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819 | serge | 129 | shr eax, 12 ;page index |
130 | bts dword [sys_pgmap], eax ;that's all! |
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291 | serge | 131 | cmc |
328 | serge | 132 | adc [pg_data.pages_free], 0 |
164 | serge | 133 | shr eax, 3 |
819 | serge | 134 | and eax, not 3 ;dword offset from page_map |
448 | diamond | 135 | add eax, sys_pgmap |
164 | serge | 136 | cmp [page_start], eax |
137 | ja @f |
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138 | popfd |
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139 | ret |
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140 | @@: |
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141 | mov [page_start], eax |
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142 | popfd |
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143 | ret |
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144 | endp |
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145 | |||
741 | serge | 146 | proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
147 | |||
148 | push ebx |
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149 | push edi |
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150 | mov eax, [size] |
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151 | add eax, 4095 |
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152 | and eax, -4096 |
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153 | mov [size], eax |
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154 | stdcall alloc_kernel_space, eax |
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155 | test eax, eax |
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156 | jz .fail |
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157 | push eax |
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158 | |||
159 | mov edi, 0x1000 |
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160 | mov ebx, eax |
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161 | mov ecx,[size] |
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162 | mov edx, [base] |
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163 | shr eax, 12 |
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164 | shr ecx, 12 |
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165 | and edx, -4096 |
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166 | or edx, [flags] |
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167 | @@: |
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168 | mov [page_tabs+eax*4], edx |
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819 | serge | 169 | ; push eax |
170 | ; invlpg [ebx] |
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171 | ; pop eax |
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741 | serge | 172 | inc eax |
173 | add ebx, edi |
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174 | add edx, edi |
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175 | loop @B |
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176 | |||
177 | pop eax |
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178 | mov edx, [base] |
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179 | and edx, 4095 |
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180 | add eax, edx |
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181 | .fail: |
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182 | pop edi |
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183 | pop ebx |
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184 | ret |
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185 | endp |
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186 | |||
279 | serge | 187 | ; param |
328 | serge | 188 | ; eax= page base + page flags |
819 | serge | 189 | ; ebx= linear address |
281 | serge | 190 | ; ecx= count |
191 | |||
192 | align 4 |
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328 | serge | 193 | commit_pages: |
741 | serge | 194 | push edi |
328 | serge | 195 | test ecx, ecx |
196 | jz .fail |
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281 | serge | 197 | |
328 | serge | 198 | mov edi, ebx |
199 | mov ebx, pg_data.pg_mutex |
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200 | call wait_mutex ;ebx |
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201 | |||
202 | mov edx, 0x1000 |
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203 | mov ebx, edi |
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204 | shr ebx, 12 |
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205 | @@: |
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365 | serge | 206 | mov [page_tabs+ebx*4], eax |
819 | serge | 207 | ; push eax |
208 | ; invlpg [edi] |
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209 | ; pop eax |
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328 | serge | 210 | add edi, edx |
211 | add eax, edx |
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212 | inc ebx |
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213 | dec ecx |
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214 | jnz @B |
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215 | mov [pg_data.pg_mutex],ecx |
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216 | .fail: |
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741 | serge | 217 | pop edi |
281 | serge | 218 | ret |
219 | |||
328 | serge | 220 | |
281 | serge | 221 | ; param |
279 | serge | 222 | ; eax= base |
281 | serge | 223 | ; ecx= count |
279 | serge | 224 | |
164 | serge | 225 | align 4 |
279 | serge | 226 | release_pages: |
321 | diamond | 227 | |
228 | pushad |
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279 | serge | 229 | mov ebx, pg_data.pg_mutex |
230 | call wait_mutex ;ebx |
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231 | |||
232 | mov esi, eax |
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233 | mov edi, eax |
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234 | |||
235 | shr esi, 10 |
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365 | serge | 236 | add esi, page_tabs |
328 | serge | 237 | |
238 | mov ebp, [pg_data.pages_free] |
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279 | serge | 239 | mov ebx, [page_start] |
240 | mov edx, sys_pgmap |
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241 | @@: |
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242 | xor eax, eax |
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243 | xchg eax, [esi] |
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244 | invlpg [edi] |
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245 | |||
246 | test eax, 1 |
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247 | jz .next |
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248 | |||
249 | shr eax, 12 |
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250 | bts [edx], eax |
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291 | serge | 251 | cmc |
328 | serge | 252 | adc ebp, 0 |
279 | serge | 253 | shr eax, 3 |
254 | and eax, -4 |
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255 | add eax, edx |
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256 | cmp eax, ebx |
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257 | jae .next |
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258 | |||
259 | mov ebx, eax |
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260 | .next: |
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261 | add edi, 0x1000 |
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262 | add esi, 4 |
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263 | dec ecx |
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264 | jnz @B |
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328 | serge | 265 | mov [pg_data.pages_free], ebp |
279 | serge | 266 | and [pg_data.pg_mutex],0 |
321 | diamond | 267 | popad |
279 | serge | 268 | ret |
269 | |||
819 | serge | 270 | ; param |
271 | ; eax= base |
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272 | ; ecx= count |
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273 | |||
279 | serge | 274 | align 4 |
819 | serge | 275 | unmap_pages: |
276 | |||
277 | push edi |
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278 | |||
279 | mov edi, eax |
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280 | mov edx, eax |
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281 | |||
282 | shr edi, 10 |
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283 | add edi, page_tabs |
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284 | |||
285 | xor eax, eax |
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286 | @@: |
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287 | stosd |
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288 | invlpg [edx] |
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289 | add edx, 0x1000 |
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290 | loop @b |
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291 | |||
292 | pop edi |
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293 | ret |
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294 | |||
295 | |||
296 | align 4 |
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188 | serge | 297 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
321 | diamond | 298 | push ebx |
164 | serge | 299 | mov ebx, [lin_addr] |
300 | shr ebx, 22 |
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301 | mov eax, [phis_addr] |
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302 | and eax, not 0xFFF |
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303 | or eax, PG_UW ;+PG_NOCACHE |
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378 | serge | 304 | mov dword [master_tab+ebx*4], eax |
164 | serge | 305 | mov eax, [lin_addr] |
306 | shr eax, 10 |
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365 | serge | 307 | add eax, page_tabs |
164 | serge | 308 | invlpg [eax] |
321 | diamond | 309 | pop ebx |
164 | serge | 310 | ret |
311 | endp |
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312 | |||
313 | align 4 |
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314 | proc init_LFB |
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378 | serge | 315 | locals |
316 | pg_count dd ? |
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317 | endl |
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318 | |||
164 | serge | 319 | cmp dword [LFBAddress], -1 |
320 | jne @f |
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412 | serge | 321 | mov [BOOT_VAR+0x901c],byte 2 |
164 | serge | 322 | stdcall kernel_alloc, 0x280000 |
323 | mov [LFBAddress], eax |
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324 | ret |
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325 | @@: |
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326 | test [SCR_MODE],word 0100000000000000b |
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211 | serge | 327 | jnz @f |
412 | serge | 328 | mov [BOOT_VAR+0x901c],byte 2 |
211 | serge | 329 | ret |
330 | @@: |
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490 | serge | 331 | call init_mtrr |
332 | |||
378 | serge | 333 | mov edx, LFB_BASE |
334 | mov esi, [LFBAddress] |
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465 | serge | 335 | mov edi, 0x00800000 |
379 | serge | 336 | mov dword [exp_lfb+4], edx |
214 | serge | 337 | |
164 | serge | 338 | shr edi, 12 |
339 | mov [pg_count], edi |
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340 | shr edi, 10 |
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341 | |||
342 | bt [cpu_caps], CAPS_PSE |
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343 | jnc .map_page_tables |
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344 | or esi, PG_LARGE+PG_UW |
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465 | serge | 345 | mov edx, sys_pgdir+(LFB_BASE shr 20) |
164 | serge | 346 | @@: |
465 | serge | 347 | mov [edx], esi |
378 | serge | 348 | add edx, 4 |
164 | serge | 349 | add esi, 0x00400000 |
350 | dec edi |
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351 | jnz @B |
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352 | |||
207 | serge | 353 | bt [cpu_caps], CAPS_PGE |
354 | jnc @F |
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465 | serge | 355 | or dword [sys_pgdir+(LFB_BASE shr 20)], PG_GLOBAL |
207 | serge | 356 | @@: |
378 | serge | 357 | mov dword [LFBAddress], LFB_BASE |
164 | serge | 358 | mov eax, cr3 ;flush TLB |
359 | mov cr3, eax |
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360 | ret |
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361 | |||
362 | .map_page_tables: |
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363 | |||
465 | serge | 364 | @@: |
164 | serge | 365 | call alloc_page |
378 | serge | 366 | stdcall map_page_table, edx, eax |
389 | serge | 367 | add edx, 0x00400000 |
164 | serge | 368 | dec edi |
465 | serge | 369 | jnz @B |
164 | serge | 370 | |
371 | mov eax, [LFBAddress] |
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378 | serge | 372 | mov edi, page_tabs + (LFB_BASE shr 10) |
164 | serge | 373 | or eax, PG_UW |
374 | mov ecx, [pg_count] |
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378 | serge | 375 | cld |
389 | serge | 376 | @@: |
377 | stosd |
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378 | add eax, 0x1000 |
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379 | dec ecx |
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380 | jnz @B |
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164 | serge | 381 | |
378 | serge | 382 | mov dword [LFBAddress], LFB_BASE |
164 | serge | 383 | mov eax, cr3 ;flush TLB |
384 | mov cr3, eax |
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385 | |||
386 | ret |
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387 | endp |
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388 | |||
389 | align 4 |
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390 | proc new_mem_resize stdcall, new_size:dword |
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391 | |||
276 | serge | 392 | mov ebx, pg_data.pg_mutex |
393 | call wait_mutex ;ebx |
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164 | serge | 394 | |
395 | mov edi, [new_size] |
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396 | add edi,4095 |
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397 | and edi,not 4095 |
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398 | mov [new_size], edi |
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399 | |||
465 | serge | 400 | mov edx,[current_slot] |
401 | cmp [edx+APPDATA.heap_base],0 |
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172 | serge | 402 | jne .exit |
403 | |||
465 | serge | 404 | mov esi, [edx+APPDATA.mem_size] |
164 | serge | 405 | add esi, 4095 |
406 | and esi, not 4095 |
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407 | |||
408 | cmp edi, esi |
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409 | jae .expand |
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410 | |||
411 | shr edi, 12 |
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412 | shr esi, 12 |
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413 | @@: |
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378 | serge | 414 | mov eax, [app_page_tabs+edi*4] |
164 | serge | 415 | test eax, 1 |
416 | jz .next |
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378 | serge | 417 | mov dword [app_page_tabs+edi*4], 2 |
164 | serge | 418 | mov ebx, edi |
419 | shl ebx, 12 |
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659 | serge | 420 | invlpg [ebx] |
164 | serge | 421 | call free_page |
422 | |||
423 | .next: add edi, 1 |
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424 | cmp edi, esi |
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425 | jb @B |
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426 | |||
427 | .update_size: |
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465 | serge | 428 | mov ebx, [new_size] |
429 | call update_mem_size |
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164 | serge | 430 | |
431 | xor eax, eax |
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432 | dec [pg_data.pg_mutex] |
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433 | ret |
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434 | .expand: |
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435 | |||
436 | push esi |
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437 | push edi |
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438 | |||
439 | add edi, 0x3FFFFF |
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440 | and edi, not(0x3FFFFF) |
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441 | add esi, 0x3FFFFF |
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442 | and esi, not(0x3FFFFF) |
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443 | |||
444 | cmp esi, edi |
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445 | jae .grow |
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446 | |||
447 | xchg esi, edi |
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448 | |||
449 | @@: |
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450 | call alloc_page |
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451 | test eax, eax |
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452 | jz .exit |
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453 | |||
188 | serge | 454 | stdcall map_page_table, edi, eax |
164 | serge | 455 | |
456 | push edi |
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457 | shr edi, 10 |
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365 | serge | 458 | add edi, page_tabs |
164 | serge | 459 | mov ecx, 1024 |
460 | xor eax, eax |
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461 | cld |
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462 | rep stosd |
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463 | pop edi |
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464 | |||
465 | add edi, 0x00400000 |
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466 | cmp edi, esi |
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467 | jb @B |
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468 | .grow: |
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469 | pop edi |
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470 | pop esi |
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471 | @@: |
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472 | call alloc_page |
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473 | test eax, eax |
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474 | jz .exit |
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475 | stdcall map_page,esi,eax,dword PG_UW |
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476 | |||
477 | push edi |
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478 | mov edi, esi |
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479 | xor eax, eax |
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480 | mov ecx, 1024 |
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481 | cld |
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482 | rep stosd |
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483 | pop edi |
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484 | |||
485 | add esi, 0x1000 |
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486 | cmp esi, edi |
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294 | diamond | 487 | jb @B |
164 | serge | 488 | |
489 | jmp .update_size |
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490 | .exit: |
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491 | xor eax, eax |
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492 | inc eax |
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493 | dec [pg_data.pg_mutex] |
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494 | ret |
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495 | endp |
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496 | |||
294 | diamond | 497 | update_mem_size: |
465 | serge | 498 | ; in: edx = slot base |
294 | diamond | 499 | ; ebx = new memory size |
500 | ; destroys eax,ecx,edx |
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501 | |||
465 | serge | 502 | mov [APPDATA.mem_size+edx],ebx |
294 | diamond | 503 | ;search threads and update |
504 | ;application memory size infomation |
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465 | serge | 505 | mov ecx,[APPDATA.dir_table+edx] |
294 | diamond | 506 | mov eax,2 |
507 | |||
508 | .search_threads: |
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509 | ;eax = current slot |
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510 | ;ebx = new memory size |
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511 | ;ecx = page directory |
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512 | cmp eax,[TASK_COUNT] |
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513 | jg .search_threads_end |
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514 | mov edx,eax |
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515 | shl edx,5 |
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516 | cmp word [CURRENT_TASK+edx+TASKDATA.state],9 ;if slot empty? |
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517 | jz .search_threads_next |
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518 | shl edx,3 |
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380 | serge | 519 | cmp [SLOT_BASE+edx+APPDATA.dir_table],ecx ;if it is our thread? |
294 | diamond | 520 | jnz .search_threads_next |
380 | serge | 521 | mov [SLOT_BASE+edx+APPDATA.mem_size],ebx ;update memory size |
294 | diamond | 522 | .search_threads_next: |
523 | inc eax |
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524 | jmp .search_threads |
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525 | .search_threads_end: |
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526 | ret |
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527 | |||
285 | serge | 528 | ; param |
529 | ; eax= linear address |
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530 | ; |
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531 | ; retval |
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532 | ; eax= phisical page address |
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533 | |||
164 | serge | 534 | align 4 |
285 | serge | 535 | get_pg_addr: |
536 | shr eax, 12 |
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365 | serge | 537 | mov eax, [page_tabs+eax*4] |
164 | serge | 538 | and eax, 0xFFFFF000 |
539 | ret |
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540 | |||
465 | serge | 541 | |
188 | serge | 542 | align 4 |
164 | serge | 543 | proc page_fault_handler |
465 | serge | 544 | |
709 | diamond | 545 | test byte [esp+12+2], 2 |
546 | jnz v86_page_fault |
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547 | |||
465 | serge | 548 | .err_code equ ebp+32 |
549 | .err_addr equ ebp-4 |
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550 | |||
164 | serge | 551 | pushad |
552 | mov ebp, esp |
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553 | mov eax, cr2 |
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172 | serge | 554 | push eax |
164 | serge | 555 | |
465 | serge | 556 | mov ax, app_data |
164 | serge | 557 | mov ds, ax |
188 | serge | 558 | mov es, ax |
164 | serge | 559 | |
188 | serge | 560 | inc [pg_data.pages_faults] |
561 | |||
465 | serge | 562 | ; push eax |
563 | ; push edx |
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564 | ; mov edx, 0x400 ;bochs |
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565 | ; mov al,0xff ;bochs |
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566 | ; out dx, al ;bochs |
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567 | ; pop edx |
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568 | ; pop eax |
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164 | serge | 569 | |
465 | serge | 570 | mov ebx, [.err_addr] |
571 | mov eax, [.err_code] |
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164 | serge | 572 | |
465 | serge | 573 | cmp ebx, OS_BASE |
574 | jb .user_space ;ñòðàíèöà â ïàìÿòè ïðèëîæåíèÿ ; |
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188 | serge | 575 | |
378 | serge | 576 | cmp ebx, page_tabs |
465 | serge | 577 | jb .kernel_space ;ñòðàíèöà â ïàìÿòè ÿäðà |
164 | serge | 578 | |
465 | serge | 579 | cmp ebx, kernel_tabs |
580 | jb .alloc;.app_tabs ;òàáëèöû ñòðàíèö ïðèëîæåíèÿ ; |
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581 | ;ïðîñòî ñîçäàäèì îäíó |
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378 | serge | 582 | |
465 | serge | 583 | cmp ebx, LFB_BASE |
584 | jb .core_tabs ;òàáëèöû ñòðàíèö ÿäðà |
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585 | ;Îøèáêà |
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586 | .lfb: |
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587 | ;îáëàñòü LFB |
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588 | ;Îøèáêà |
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589 | jmp .fail |
||
164 | serge | 590 | |
465 | serge | 591 | align 4 |
164 | serge | 592 | .user_space: |
465 | serge | 593 | test eax, PG_MAP |
594 | jnz .err_access ;Ñòðàíèöà ïðèñóòñòâóåò |
||
595 | ;Îøèáêà äîñòóïà ? |
||
596 | |||
164 | serge | 597 | shr ebx, 12 |
172 | serge | 598 | mov ecx, ebx |
599 | shr ecx, 10 |
||
600 | mov edx, [master_tab+ecx*4] |
||
465 | serge | 601 | test edx, PG_MAP |
602 | jz .fail ;òàáëèöà ñòðàíèö íå ñîçäàíà |
||
603 | ;íåâåðíûé àäðåñ â ïðîãðàììå |
||
172 | serge | 604 | |
365 | serge | 605 | mov eax, [page_tabs+ebx*4] |
164 | serge | 606 | test eax, 2 |
465 | serge | 607 | jz .fail ;àäðåñ íå çàðåçåðâèðîâàí äëÿ ; |
608 | ;èñïîëüçîâàíèÿ. Îøèáêà |
||
188 | serge | 609 | .alloc: |
164 | serge | 610 | call alloc_page |
566 | serge | 611 | test eax, eax |
465 | serge | 612 | jz .fail |
164 | serge | 613 | |
614 | stdcall map_page,[ebp-4],eax,dword PG_UW |
||
615 | |||
188 | serge | 616 | mov edi, [ebp-4] |
617 | and edi, 0xFFFFF000 |
||
164 | serge | 618 | mov ecx, 1024 |
619 | xor eax, eax |
||
188 | serge | 620 | cld |
621 | rep stosd |
||
164 | serge | 622 | .exit: |
623 | mov esp, ebp |
||
624 | popad |
||
625 | add esp, 4 |
||
626 | iretd |
||
465 | serge | 627 | |
628 | .err_access: |
||
629 | ;íèêîãäà íå ïðîèñõîäèò |
||
630 | jmp .fail |
||
631 | |||
632 | .kernel_space: |
||
633 | test eax, PG_MAP |
||
634 | jz .fail ;ñòðàíèöà íå ïðèñóòñòâóåò |
||
635 | |||
636 | test eax, 4 ;U/S |
||
637 | jnz .fail ;ïðèëîæåíèå îáðàòèëîñü ê ïàìÿòè |
||
638 | ;ÿäðà |
||
639 | test eax, 8 |
||
640 | jnz .fail ;óñòàíîâëåí çàðåçåðâèðîâàííûé áèò |
||
641 | ;â òàáëèöàõ ñòðàíèö. äîáàâëåíî â P4/Xeon |
||
642 | |||
643 | ;ïîïûòêà çàïèñè â çàùèù¸ííóþ ñòðàíèöó ÿäðà |
||
644 | |||
645 | cmp ebx, tss._io_map_0 |
||
646 | jb .fail |
||
647 | |||
648 | cmp ebx, tss._io_map_0+8192 |
||
649 | jae .fail |
||
650 | |||
651 | ; io permission map |
||
652 | ; copy-on-write protection |
||
653 | |||
654 | call alloc_page |
||
566 | serge | 655 | test eax, eax |
465 | serge | 656 | jz .fail |
657 | |||
658 | push eax |
||
659 | stdcall map_page,[ebp-4],eax,dword PG_SW |
||
660 | pop eax |
||
661 | mov edi, [.err_addr] |
||
662 | and edi, -4096 |
||
663 | lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0 |
||
664 | |||
665 | mov ebx, esi |
||
666 | shr ebx, 12 |
||
667 | mov edx, [current_slot] |
||
668 | or eax, PG_SW |
||
669 | mov [edx+APPDATA.io_map+ebx*4], eax |
||
670 | |||
671 | add esi, [default_io_map] |
||
672 | mov ecx, 4096/4 |
||
673 | cld |
||
674 | rep movsd |
||
675 | jmp .exit |
||
676 | |||
677 | |||
678 | ;íå îáðàáàòûâàåì. Îøèáêà |
||
679 | |||
680 | .core_tabs: |
||
172 | serge | 681 | .fail: |
682 | mov esp, ebp |
||
683 | popad |
||
684 | add esp, 4 |
||
164 | serge | 685 | |
465 | serge | 686 | ; iretd |
687 | |||
172 | serge | 688 | save_ring3_context ;debugger support |
689 | |||
690 | mov bl, 14 |
||
691 | jmp exc_c |
||
692 | iretd |
||
164 | serge | 693 | endp |
694 | |||
695 | align 4 |
||
696 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
||
697 | ofs:dword,buf_size:dword |
||
698 | mov eax, [buf_size] |
||
699 | test eax, eax |
||
700 | jz .exit |
||
701 | |||
702 | mov eax, [pdir] |
||
703 | and eax, 0xFFFFF000 |
||
704 | |||
536 | diamond | 705 | stdcall map_page,[ipc_pdir],eax,PG_UW |
164 | serge | 706 | mov ebx, [ofs] |
707 | shr ebx, 22 |
||
708 | mov esi, [ipc_pdir] |
||
709 | mov edi, [ipc_ptab] |
||
710 | mov eax, [esi+ebx*4] |
||
711 | and eax, 0xFFFFF000 |
||
712 | jz .exit |
||
536 | diamond | 713 | stdcall map_page,edi,eax,PG_UW |
164 | serge | 714 | ; inc ebx |
715 | ; add edi, 0x1000 |
||
716 | ; mov eax, [esi+ebx*4] |
||
717 | ; test eax, eax |
||
718 | ; jz @f |
||
719 | ; and eax, 0xFFFFF000 |
||
720 | ; stdcall map_page, edi, eax |
||
721 | |||
722 | @@: mov edi, [lin_addr] |
||
723 | and edi, 0xFFFFF000 |
||
724 | mov ecx, [buf_size] |
||
725 | add ecx, 4095 |
||
726 | shr ecx, 12 |
||
727 | inc ecx |
||
728 | |||
729 | mov edx, [ofs] |
||
730 | shr edx, 12 |
||
731 | and edx, 0x3FF |
||
732 | mov esi, [ipc_ptab] |
||
733 | |||
734 | .map: mov eax, [esi+edx*4] |
||
735 | and eax, 0xFFFFF000 |
||
536 | diamond | 736 | jz .exit |
737 | stdcall map_page,edi,eax,PG_UW |
||
738 | dec ecx |
||
739 | jz .exit |
||
164 | serge | 740 | add edi, 0x1000 |
741 | inc edx |
||
536 | diamond | 742 | cmp edx, 0x400 |
164 | serge | 743 | jnz .map |
536 | diamond | 744 | inc ebx |
745 | mov eax, [ipc_pdir] |
||
746 | mov eax, [eax+ebx*4] |
||
747 | and eax, 0xFFFFF000 |
||
748 | jz .exit |
||
749 | stdcall map_page,esi,eax,PG_UW |
||
750 | xor edx, edx |
||
751 | jmp .map |
||
164 | serge | 752 | |
753 | .exit: |
||
754 | ret |
||
755 | endp |
||
756 | |||
757 | align 4 |
||
758 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
||
759 | ofs:dword,buf_size:dword |
||
760 | mov eax, [buf_size] |
||
761 | test eax, eax |
||
762 | jz .exit |
||
763 | |||
764 | mov eax, [pdir] |
||
765 | and eax, 0xFFFFF000 |
||
766 | |||
767 | stdcall map_page,[proc_mem_pdir],eax,dword PG_UW |
||
768 | mov ebx, [ofs] |
||
769 | shr ebx, 22 |
||
770 | mov esi, [proc_mem_pdir] |
||
771 | mov edi, [proc_mem_tab] |
||
772 | mov eax, [esi+ebx*4] |
||
773 | and eax, 0xFFFFF000 |
||
774 | test eax, eax |
||
775 | jz .exit |
||
776 | stdcall map_page,edi,eax,dword PG_UW |
||
777 | |||
778 | @@: mov edi, [lin_addr] |
||
779 | and edi, 0xFFFFF000 |
||
780 | mov ecx, [buf_size] |
||
781 | add ecx, 4095 |
||
782 | shr ecx, 12 |
||
783 | inc ecx |
||
784 | |||
785 | mov edx, [ofs] |
||
786 | shr edx, 12 |
||
787 | and edx, 0x3FF |
||
788 | mov esi, [proc_mem_tab] |
||
789 | |||
790 | .map: mov eax, [esi+edx*4] |
||
791 | ; and eax, 0xFFFFF000 |
||
792 | ; test eax, eax |
||
793 | ; jz .exit |
||
794 | stdcall map_page,edi,eax,dword PG_UW |
||
795 | add edi, 0x1000 |
||
796 | inc edx |
||
797 | dec ecx |
||
798 | jnz .map |
||
799 | .exit: |
||
800 | ret |
||
801 | endp |
||
802 | |||
803 | |||
804 | |||
805 | |||
806 | sys_IPC: |
||
807 | ;input: |
||
808 | ; eax=1 - set ipc buffer area |
||
809 | ; ebx=address of buffer |
||
810 | ; ecx=size of buffer |
||
811 | ; eax=2 - send message |
||
812 | ; ebx=PID |
||
813 | ; ecx=address of message |
||
814 | ; edx=size of message |
||
815 | |||
816 | cmp eax,1 |
||
817 | jne @f |
||
818 | call set_ipc_buff |
||
819 | mov [esp+36], eax |
||
820 | ret |
||
821 | @@: |
||
822 | cmp eax, 2 |
||
823 | jne @f |
||
824 | stdcall sys_ipc_send, ebx, ecx, edx |
||
825 | mov [esp+36], eax |
||
826 | ret |
||
827 | @@: |
||
828 | xor eax, eax |
||
829 | not eax |
||
830 | mov [esp+36], eax |
||
831 | ret |
||
832 | |||
833 | align 4 |
||
834 | proc set_ipc_buff |
||
835 | |||
465 | serge | 836 | mov eax,[current_slot] |
164 | serge | 837 | pushf |
838 | cli |
||
465 | serge | 839 | mov [eax+APPDATA.ipc_start],ebx ;set fields in extended information area |
840 | mov [eax+APPDATA.ipc_size],ecx |
||
164 | serge | 841 | |
842 | add ecx, ebx |
||
843 | add ecx, 4095 |
||
844 | and ecx, not 4095 |
||
845 | |||
846 | .touch: mov eax, [ebx] |
||
847 | add ebx, 0x1000 |
||
848 | cmp ebx, ecx |
||
536 | diamond | 849 | jb .touch |
164 | serge | 850 | |
851 | popf |
||
852 | xor eax, eax |
||
853 | ret |
||
854 | endp |
||
855 | |||
856 | proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword |
||
857 | locals |
||
858 | dst_slot dd ? |
||
859 | dst_offset dd ? |
||
860 | buf_size dd ? |
||
536 | diamond | 861 | used_buf dd ? |
164 | serge | 862 | endl |
863 | |||
864 | pushf |
||
865 | cli |
||
866 | |||
867 | mov eax, [PID] |
||
868 | call pid_to_slot |
||
869 | test eax,eax |
||
870 | jz .no_pid |
||
871 | |||
872 | mov [dst_slot], eax |
||
873 | shl eax,8 |
||
380 | serge | 874 | mov edi,[eax+SLOT_BASE+0xa0] ;is ipc area defined? |
164 | serge | 875 | test edi,edi |
876 | jz .no_ipc_area |
||
877 | |||
878 | mov ebx, edi |
||
879 | and ebx, 0xFFF |
||
880 | mov [dst_offset], ebx |
||
881 | |||
380 | serge | 882 | mov esi, [eax+SLOT_BASE+0xa4] |
164 | serge | 883 | mov [buf_size], esi |
884 | |||
536 | diamond | 885 | mov ecx, [ipc_tmp] |
886 | cmp esi, 0x40000-0x1000 ; size of [ipc_tmp] minus one page |
||
887 | jbe @f |
||
888 | push eax esi edi |
||
889 | add esi,0x1000 |
||
890 | stdcall alloc_kernel_space,esi |
||
891 | mov ecx, eax |
||
892 | pop edi esi eax |
||
893 | @@: |
||
894 | mov [used_buf], ecx |
||
895 | stdcall map_mem, ecx, [SLOT_BASE+eax+0xB8],\ |
||
164 | serge | 896 | edi, esi |
897 | |||
898 | mov edi, [dst_offset] |
||
536 | diamond | 899 | add edi, [used_buf] |
164 | serge | 900 | cmp dword [edi], 0 |
901 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
227 | serge | 902 | |
566 | serge | 903 | mov edx, dword [edi+4] |
904 | lea ebx, [edx+8] |
||
164 | serge | 905 | add ebx, [msg_size] |
906 | cmp ebx, [buf_size] |
||
907 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
227 | serge | 908 | |
164 | serge | 909 | mov dword [edi+4], ebx |
910 | mov eax,[TASK_BASE] |
||
911 | mov eax, [eax+0x04] ;eax - our PID |
||
912 | add edi, edx |
||
913 | mov [edi], eax |
||
914 | mov ecx, [msg_size] |
||
915 | |||
916 | mov [edi+4], ecx |
||
917 | add edi, 8 |
||
918 | mov esi, [msg_addr] |
||
465 | serge | 919 | ; add esi, new_app_base |
164 | serge | 920 | cld |
921 | rep movsb |
||
922 | |||
923 | mov ebx, [ipc_tmp] |
||
924 | mov edx, ebx |
||
925 | shr ebx, 12 |
||
926 | xor eax, eax |
||
365 | serge | 927 | mov [page_tabs+ebx*4], eax |
164 | serge | 928 | invlpg [edx] |
929 | |||
930 | mov ebx, [ipc_pdir] |
||
931 | mov edx, ebx |
||
932 | shr ebx, 12 |
||
933 | xor eax, eax |
||
365 | serge | 934 | mov [page_tabs+ebx*4], eax |
164 | serge | 935 | invlpg [edx] |
936 | |||
937 | mov ebx, [ipc_ptab] |
||
938 | mov edx, ebx |
||
939 | shr ebx, 12 |
||
940 | xor eax, eax |
||
365 | serge | 941 | mov [page_tabs+ebx*4], eax |
164 | serge | 942 | invlpg [edx] |
943 | |||
944 | mov eax, [dst_slot] |
||
945 | shl eax, 8 |
||
380 | serge | 946 | or [eax+SLOT_BASE+0xA8],dword 0x40 |
164 | serge | 947 | cmp dword [check_idle_semaphore],20 |
948 | jge .ipc_no_cis |
||
949 | |||
950 | mov dword [check_idle_semaphore],5 |
||
951 | .ipc_no_cis: |
||
536 | diamond | 952 | push 0 |
953 | jmp .ret |
||
164 | serge | 954 | .no_pid: |
955 | popf |
||
536 | diamond | 956 | mov eax, 4 |
164 | serge | 957 | ret |
958 | .no_ipc_area: |
||
959 | popf |
||
960 | xor eax, eax |
||
961 | inc eax |
||
962 | ret |
||
963 | .ipc_blocked: |
||
536 | diamond | 964 | push 2 |
965 | jmp .ret |
||
164 | serge | 966 | .buffer_overflow: |
536 | diamond | 967 | push 3 |
968 | .ret: |
||
969 | mov eax, [used_buf] |
||
970 | cmp eax, [ipc_tmp] |
||
971 | jz @f |
||
972 | stdcall free_kernel_space,eax |
||
973 | @@: |
||
974 | pop eax |
||
164 | serge | 975 | popf |
976 | ret |
||
977 | endp |
||
978 | |||
979 | align 4 |
||
170 | serge | 980 | sysfn_meminfo: |
164 | serge | 981 | |
465 | serge | 982 | ; add ebx, new_app_base |
983 | cmp ebx, OS_BASE |
||
984 | jae .fail |
||
172 | serge | 985 | |
164 | serge | 986 | mov eax, [pg_data.pages_count] |
170 | serge | 987 | mov [ebx], eax |
172 | serge | 988 | shl eax, 12 |
989 | mov [esp+36], eax |
||
170 | serge | 990 | mov ecx, [pg_data.pages_free] |
991 | mov [ebx+4], ecx |
||
992 | mov edx, [pg_data.pages_faults] |
||
993 | mov [ebx+8], edx |
||
994 | mov esi, [heap_size] |
||
995 | mov [ebx+12], esi |
||
996 | mov edi, [heap_free] |
||
997 | mov [ebx+16], edi |
||
998 | mov eax, [heap_blocks] |
||
999 | mov [ebx+20], eax |
||
1000 | mov ecx, [free_blocks] |
||
1001 | mov [ebx+24], ecx |
||
164 | serge | 1002 | ret |
172 | serge | 1003 | .fail: |
1004 | mov dword [esp+36], -1 |
||
1005 | ret |
||
164 | serge | 1006 | |
1007 | align 4 |
||
1008 | new_services: |
||
1009 | |||
1010 | cmp eax,4 |
||
1011 | jle sys_sheduler |
||
1012 | |||
170 | serge | 1013 | cmp eax, 11 |
164 | serge | 1014 | jb .fail |
1015 | ja @f |
||
1016 | |||
188 | serge | 1017 | call init_heap |
164 | serge | 1018 | mov [esp+36], eax |
1019 | ret |
||
1020 | @@: |
||
1021 | cmp eax, 12 |
||
1022 | ja @f |
||
1023 | |||
1024 | stdcall user_alloc, ebx |
||
1025 | mov [esp+36], eax |
||
1026 | ret |
||
1027 | @@: |
||
1028 | cmp eax, 13 |
||
1029 | ja @f |
||
1030 | stdcall user_free, ebx |
||
1031 | mov [esp+36], eax |
||
1032 | ret |
||
1033 | @@: |
||
1034 | cmp eax, 14 |
||
1035 | ja @f |
||
465 | serge | 1036 | cmp ebx, OS_BASE |
1037 | jae .fail |
||
227 | serge | 1038 | stdcall get_event_ex, ebx, ecx |
1039 | mov [esp+36], eax |
||
164 | serge | 1040 | ret |
1041 | @@: |
||
1042 | cmp eax, 15 |
||
1043 | ja @f |
||
465 | serge | 1044 | mov ecx, [current_slot] |
1045 | mov eax, [ecx+APPDATA.fpu_handler] |
||
1046 | mov [ecx+APPDATA.fpu_handler], ebx |
||
164 | serge | 1047 | mov [esp+36], eax |
1048 | ret |
||
1049 | @@: |
||
1050 | cmp eax, 16 |
||
1051 | ja @f |
||
1052 | |||
188 | serge | 1053 | test ebx, ebx |
1054 | jz .fail |
||
465 | serge | 1055 | cmp ebx, OS_BASE |
1056 | jae .fail |
||
164 | serge | 1057 | stdcall get_service, ebx |
1058 | mov [esp+36], eax |
||
1059 | ret |
||
1060 | @@: |
||
1061 | cmp eax, 17 |
||
1062 | ja @f |
||
378 | serge | 1063 | call srv_handlerEx ;ebx |
164 | serge | 1064 | mov [esp+36], eax |
1065 | ret |
||
168 | serge | 1066 | @@: |
1067 | cmp eax, 18 |
||
1068 | ja @f |
||
465 | serge | 1069 | mov ecx, [current_slot] |
1070 | mov eax, [ecx+APPDATA.sse_handler] |
||
1071 | mov [ecx+APPDATA.sse_handler], ebx |
||
168 | serge | 1072 | mov [esp+36], eax |
1073 | ret |
||
164 | serge | 1074 | @@: |
198 | serge | 1075 | cmp eax, 19 |
448 | diamond | 1076 | ja @f |
465 | serge | 1077 | cmp ebx, OS_BASE |
1078 | jae .fail |
||
198 | serge | 1079 | stdcall load_library, ebx |
1080 | mov [esp+36], eax |
||
1081 | ret |
||
448 | diamond | 1082 | @@: |
490 | serge | 1083 | cmp eax, 20 |
740 | serge | 1084 | ja @F |
490 | serge | 1085 | mov eax, ecx |
1086 | call user_realloc |
||
1087 | mov [esp+36], eax |
||
1088 | ret |
||
740 | serge | 1089 | @@: |
747 | serge | 1090 | cmp eax, 21 ;for test purposes only |
1091 | ja @f ;will be removed soon |
||
740 | serge | 1092 | cmp ebx, OS_BASE |
1093 | jae .fail |
||
1094 | |||
1095 | stdcall load_PE, ebx |
||
1096 | |||
1097 | test eax, eax |
||
1098 | jz @F |
||
1099 | |||
1100 | mov esi, eax |
||
1101 | stdcall eax, DRV_ENTRY |
||
1102 | |||
1103 | test eax, eax |
||
1104 | jz @F |
||
1105 | |||
1106 | mov [eax+SRV.entry], esi |
||
1107 | |||
1108 | @@: |
||
1109 | mov [esp+36], eax |
||
1110 | ret |
||
1111 | |||
1112 | |||
164 | serge | 1113 | .fail: |
1114 | xor eax, eax |
||
1115 | mov [esp+36], eax |
||
1116 | ret |
||
1117 | |||
1118 | align 4 |
||
819 | serge | 1119 | proc load_pe_driver stdcall, file:dword |
1120 | |||
1121 | stdcall load_PE, [file] |
||
1122 | test eax, eax |
||
1123 | jz .fail |
||
1124 | |||
1125 | mov esi, eax |
||
1126 | stdcall eax, DRV_ENTRY |
||
1127 | test eax, eax |
||
1128 | jz .fail |
||
1129 | |||
1130 | mov [eax+SRV.entry], esi |
||
1131 | ret |
||
1132 | |||
1133 | .fail: |
||
1134 | xor eax, eax |
||
1135 | ret |
||
1136 | endp |
||
1137 | |||
1138 | |||
1139 | align 4 |
||
164 | serge | 1140 | proc init_mtrr |
1141 | |||
412 | serge | 1142 | cmp [BOOT_VAR+0x901c],byte 2 |
164 | serge | 1143 | je .exit |
1144 | |||
211 | serge | 1145 | bt [cpu_caps], CAPS_MTRR |
1146 | jnc .exit |
||
1147 | |||
164 | serge | 1148 | mov eax, cr0 |
1149 | or eax, 0x60000000 ;disable caching |
||
1150 | mov cr0, eax |
||
1151 | wbinvd ;invalidate cache |
||
1152 | |||
1153 | mov ecx, 0x2FF |
||
1154 | rdmsr ; |
||
1155 | push eax |
||
1156 | |||
1157 | xor edx, edx |
||
1158 | xor eax, eax |
||
1159 | mov ecx, 0x2FF |
||
1160 | wrmsr ;disable all MTRR |
||
1161 | |||
1162 | stdcall set_mtrr, dword 0,dword 0,[MEM_AMOUNT],MEM_WB |
||
1163 | stdcall set_mtrr, dword 1,[LFBAddress],[LFBSize],MEM_WC |
||
1164 | xor edx, edx |
||
1165 | xor eax, eax |
||
1166 | mov ecx, 0x204 |
||
1167 | mov ebx, 6 |
||
1168 | @@: |
||
1169 | wrmsr ;disable unused MTRR |
||
1170 | inc ecx |
||
1171 | wrmsr |
||
1172 | inc ecx |
||
1173 | dec ebx |
||
1174 | jnz @b |
||
1175 | |||
1176 | wbinvd ;again invalidate |
||
1177 | |||
1178 | pop eax |
||
1179 | or eax, 0x800 ;set default memtype to UC |
||
1180 | and al, 0xF0 |
||
1181 | mov ecx, 0x2FF |
||
1182 | wrmsr ;and enable MTRR |
||
1183 | |||
1184 | mov eax, cr0 |
||
1185 | and eax, not 0x60000000 |
||
1186 | mov cr0, eax ; enable caching |
||
1187 | .exit: |
||
1188 | ret |
||
1189 | endp |
||
1190 | |||
1191 | align 4 |
||
1192 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1193 | |||
1194 | xor edx, edx |
||
1195 | mov eax, [base] |
||
1196 | or eax, [mem_type] |
||
1197 | mov ecx, [reg] |
||
1198 | lea ecx, [0x200+ecx*2] |
||
1199 | wrmsr |
||
1200 | |||
1201 | mov ebx, [size] |
||
1202 | dec ebx |
||
1203 | mov eax, 0xFFFFFFFF |
||
1204 | mov edx, 0x0000000F |
||
1205 | sub eax, ebx |
||
1206 | sbb edx, 0 |
||
1207 | or eax, 0x800 |
||
1208 | inc ecx |
||
1209 | wrmsr |
||
1210 | ret |
||
1211 | endp |
||
1212 | |||
465 | serge | 1213 | align 4 |
172 | serge | 1214 | proc stall stdcall, delay:dword |
1215 | push ecx |
||
1216 | push edx |
||
1217 | push ebx |
||
1218 | push eax |
||
1219 | |||
1220 | mov eax, [delay] |
||
1221 | mul [stall_mcs] |
||
1222 | mov ebx, eax ;low |
||
1223 | mov ecx, edx ;high |
||
1224 | rdtsc |
||
1225 | add ebx, eax |
||
1226 | adc ecx,edx |
||
1227 | @@: |
||
1228 | rdtsc |
||
1229 | sub eax, ebx |
||
1230 | sbb edx, ecx |
||
1231 | jb @B |
||
1232 | |||
1233 | pop eax |
||
1234 | pop ebx |
||
1235 | pop edx |
||
1236 | pop ecx |
||
1237 | ret |
||
1238 | endp |
||
1239 | |||
520 | serge | 1240 | align 4 |
1241 | proc create_ring_buffer stdcall, size:dword, flags:dword |
||
1242 | locals |
||
1243 | buf_ptr dd ? |
||
1244 | endl |
||
237 | serge | 1245 | |
520 | serge | 1246 | mov eax, [size] |
1247 | test eax, eax |
||
1248 | jz .fail |
||
1249 | |||
1250 | add eax, eax |
||
1251 | stdcall alloc_kernel_space, eax |
||
1252 | test eax, eax |
||
1253 | jz .fail |
||
1254 | |||
662 | serge | 1255 | push ebx |
1256 | |||
520 | serge | 1257 | mov [buf_ptr], eax |
1258 | |||
1259 | mov ebx, [size] |
||
1260 | shr ebx, 12 |
||
1261 | push ebx |
||
1262 | |||
1263 | stdcall alloc_pages, ebx |
||
1264 | pop ecx |
||
1265 | |||
1266 | test eax, eax |
||
1267 | jz .mm_fail |
||
1268 | |||
662 | serge | 1269 | push edi |
1270 | |||
520 | serge | 1271 | or eax, [flags] |
1272 | mov edi, [buf_ptr] |
||
1273 | mov ebx, [buf_ptr] |
||
1274 | mov edx, ecx |
||
566 | serge | 1275 | shl edx, 2 |
520 | serge | 1276 | shr edi, 10 |
1277 | @@: |
||
1278 | mov [page_tabs+edi], eax |
||
1279 | mov [page_tabs+edi+edx], eax |
||
1280 | add eax, 0x1000 |
||
1281 | add ebx, 0x1000 |
||
566 | serge | 1282 | add edi, 4 |
520 | serge | 1283 | dec ecx |
1284 | jnz @B |
||
1285 | |||
1286 | mov eax, [buf_ptr] |
||
662 | serge | 1287 | pop edi |
1288 | pop ebx |
||
520 | serge | 1289 | ret |
1290 | .mm_fail: |
||
1291 | stdcall free_kernel_space, [buf_ptr] |
||
1292 | xor eax, eax |
||
662 | serge | 1293 | pop ebx |
520 | serge | 1294 | .fail: |
1295 | ret |
||
1296 | endp0>> |
||
1297 |