Rev 846 | Rev 854 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
||
4 | ;; Distributed under terms of the GNU General Public License ;; |
||
5 | ;; ;; |
||
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
164 | serge | 7 | |
593 | mikedld | 8 | $Revision: 848 $ |
9 | |||
10 | |||
164 | serge | 11 | align 4 |
12 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
||
321 | diamond | 13 | push ebx |
164 | serge | 14 | mov eax, [phis_addr] |
15 | and eax, not 0xFFF |
||
16 | or eax, [flags] |
||
17 | mov ebx, [lin_addr] |
||
18 | shr ebx, 12 |
||
365 | serge | 19 | mov [page_tabs+ebx*4], eax |
164 | serge | 20 | mov eax, [lin_addr] |
21 | invlpg [eax] |
||
321 | diamond | 22 | pop ebx |
164 | serge | 23 | ret |
24 | endp |
||
25 | |||
26 | align 4 |
||
281 | serge | 27 | map_space: ;not implemented |
28 | |||
29 | |||
30 | ret |
||
31 | |||
32 | |||
33 | align 4 |
||
164 | serge | 34 | proc free_page |
843 | serge | 35 | |
164 | serge | 36 | ;arg: eax page address |
843 | serge | 37 | ; pushfd |
38 | ; cli |
||
39 | ; shr eax, 12 ;page index |
||
40 | ; bts dword [sys_pgmap], eax ;that's all! |
||
41 | ; cmc |
||
42 | ; adc [pg_data.pages_free], 0 |
||
43 | ; shr eax, 3 |
||
44 | ; and eax, not 3 ;dword offset from page_map |
||
45 | ; add eax, sys_pgmap |
||
46 | ; cmp [page_start], eax |
||
47 | ; ja @f |
||
48 | ; popfd |
||
49 | ; ret |
||
50 | ;@@: |
||
51 | ; mov [page_start], eax |
||
52 | ; popfd |
||
164 | serge | 53 | ret |
54 | endp |
||
55 | |||
741 | serge | 56 | proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
57 | |||
58 | push ebx |
||
59 | push edi |
||
60 | mov eax, [size] |
||
61 | add eax, 4095 |
||
62 | and eax, -4096 |
||
63 | mov [size], eax |
||
64 | stdcall alloc_kernel_space, eax |
||
65 | test eax, eax |
||
66 | jz .fail |
||
67 | push eax |
||
68 | |||
69 | mov edi, 0x1000 |
||
70 | mov ebx, eax |
||
71 | mov ecx,[size] |
||
72 | mov edx, [base] |
||
73 | shr eax, 12 |
||
74 | shr ecx, 12 |
||
75 | and edx, -4096 |
||
76 | or edx, [flags] |
||
77 | @@: |
||
78 | mov [page_tabs+eax*4], edx |
||
819 | serge | 79 | ; push eax |
80 | ; invlpg [ebx] |
||
81 | ; pop eax |
||
741 | serge | 82 | inc eax |
83 | add ebx, edi |
||
84 | add edx, edi |
||
85 | loop @B |
||
86 | |||
87 | pop eax |
||
88 | mov edx, [base] |
||
89 | and edx, 4095 |
||
90 | add eax, edx |
||
91 | .fail: |
||
92 | pop edi |
||
93 | pop ebx |
||
94 | ret |
||
95 | endp |
||
96 | |||
279 | serge | 97 | ; param |
328 | serge | 98 | ; eax= page base + page flags |
819 | serge | 99 | ; ebx= linear address |
281 | serge | 100 | ; ecx= count |
101 | |||
102 | align 4 |
||
328 | serge | 103 | commit_pages: |
741 | serge | 104 | push edi |
328 | serge | 105 | test ecx, ecx |
106 | jz .fail |
||
281 | serge | 107 | |
328 | serge | 108 | mov edi, ebx |
109 | mov ebx, pg_data.pg_mutex |
||
110 | call wait_mutex ;ebx |
||
111 | |||
112 | mov edx, 0x1000 |
||
113 | mov ebx, edi |
||
114 | shr ebx, 12 |
||
115 | @@: |
||
365 | serge | 116 | mov [page_tabs+ebx*4], eax |
819 | serge | 117 | ; push eax |
118 | ; invlpg [edi] |
||
119 | ; pop eax |
||
328 | serge | 120 | add edi, edx |
121 | add eax, edx |
||
122 | inc ebx |
||
123 | dec ecx |
||
124 | jnz @B |
||
125 | mov [pg_data.pg_mutex],ecx |
||
126 | .fail: |
||
741 | serge | 127 | pop edi |
281 | serge | 128 | ret |
129 | |||
328 | serge | 130 | |
281 | serge | 131 | ; param |
279 | serge | 132 | ; eax= base |
281 | serge | 133 | ; ecx= count |
279 | serge | 134 | |
164 | serge | 135 | align 4 |
279 | serge | 136 | release_pages: |
321 | diamond | 137 | |
138 | pushad |
||
279 | serge | 139 | mov ebx, pg_data.pg_mutex |
140 | call wait_mutex ;ebx |
||
141 | |||
142 | mov esi, eax |
||
143 | mov edi, eax |
||
144 | |||
145 | shr esi, 10 |
||
365 | serge | 146 | add esi, page_tabs |
328 | serge | 147 | |
843 | serge | 148 | ; mov ebp, [pg_data.pages_free] |
149 | ; mov ebx, [page_start] |
||
150 | ; mov edx, sys_pgmap |
||
279 | serge | 151 | @@: |
152 | xor eax, eax |
||
153 | xchg eax, [esi] |
||
837 | serge | 154 | push eax |
279 | serge | 155 | invlpg [edi] |
837 | serge | 156 | pop eax |
279 | serge | 157 | |
843 | serge | 158 | ; test eax, 1 |
159 | ; jz .next |
||
279 | serge | 160 | |
843 | serge | 161 | ; shr eax, 12 |
162 | ; bts [edx], eax |
||
163 | ; cmc |
||
164 | ; adc ebp, 0 |
||
165 | ; shr eax, 3 |
||
166 | ; and eax, -4 |
||
167 | ; add eax, edx |
||
168 | ; cmp eax, ebx |
||
169 | ; jae .next |
||
279 | serge | 170 | |
843 | serge | 171 | ; mov ebx, eax |
279 | serge | 172 | .next: |
173 | add edi, 0x1000 |
||
174 | add esi, 4 |
||
175 | dec ecx |
||
176 | jnz @B |
||
328 | serge | 177 | mov [pg_data.pages_free], ebp |
279 | serge | 178 | and [pg_data.pg_mutex],0 |
321 | diamond | 179 | popad |
279 | serge | 180 | ret |
181 | |||
819 | serge | 182 | ; param |
183 | ; eax= base |
||
184 | ; ecx= count |
||
185 | |||
279 | serge | 186 | align 4 |
819 | serge | 187 | unmap_pages: |
188 | |||
189 | push edi |
||
190 | |||
191 | mov edi, eax |
||
192 | mov edx, eax |
||
193 | |||
194 | shr edi, 10 |
||
195 | add edi, page_tabs |
||
196 | |||
197 | xor eax, eax |
||
198 | @@: |
||
199 | stosd |
||
200 | invlpg [edx] |
||
201 | add edx, 0x1000 |
||
202 | loop @b |
||
203 | |||
204 | pop edi |
||
205 | ret |
||
206 | |||
207 | |||
208 | align 4 |
||
188 | serge | 209 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
321 | diamond | 210 | push ebx |
164 | serge | 211 | mov ebx, [lin_addr] |
212 | shr ebx, 22 |
||
213 | mov eax, [phis_addr] |
||
214 | and eax, not 0xFFF |
||
215 | or eax, PG_UW ;+PG_NOCACHE |
||
378 | serge | 216 | mov dword [master_tab+ebx*4], eax |
164 | serge | 217 | mov eax, [lin_addr] |
218 | shr eax, 10 |
||
365 | serge | 219 | add eax, page_tabs |
164 | serge | 220 | invlpg [eax] |
321 | diamond | 221 | pop ebx |
164 | serge | 222 | ret |
223 | endp |
||
224 | |||
225 | align 4 |
||
226 | proc init_LFB |
||
378 | serge | 227 | locals |
228 | pg_count dd ? |
||
229 | endl |
||
230 | |||
164 | serge | 231 | cmp dword [LFBAddress], -1 |
232 | jne @f |
||
412 | serge | 233 | mov [BOOT_VAR+0x901c],byte 2 |
839 | serge | 234 | stdcall alloc_pages, 0x280000 shr 12 |
235 | add eax, OS_BASE |
||
164 | serge | 236 | mov [LFBAddress], eax |
237 | ret |
||
238 | @@: |
||
239 | test [SCR_MODE],word 0100000000000000b |
||
211 | serge | 240 | jnz @f |
412 | serge | 241 | mov [BOOT_VAR+0x901c],byte 2 |
211 | serge | 242 | ret |
243 | @@: |
||
490 | serge | 244 | call init_mtrr |
245 | |||
839 | serge | 246 | mov eax, [LFBAddress] |
247 | or eax, PG_LARGE+PG_UW |
||
848 | serge | 248 | mov [_sys_pdbr+(LFB_BASE shr 20)], eax |
839 | serge | 249 | add eax, 0x00400000 |
848 | serge | 250 | mov [_sys_pdbr+4+(LFB_BASE shr 20)], eax |
164 | serge | 251 | |
839 | serge | 252 | mov dword [exp_lfb+4], LFB_BASE |
164 | serge | 253 | |
207 | serge | 254 | bt [cpu_caps], CAPS_PGE |
255 | jnc @F |
||
848 | serge | 256 | or dword [_sys_pdbr+(LFB_BASE shr 20)], PG_GLOBAL |
207 | serge | 257 | @@: |
378 | serge | 258 | mov dword [LFBAddress], LFB_BASE |
164 | serge | 259 | mov eax, cr3 ;flush TLB |
260 | mov cr3, eax |
||
261 | |||
262 | ret |
||
263 | endp |
||
264 | |||
265 | align 4 |
||
266 | proc new_mem_resize stdcall, new_size:dword |
||
267 | |||
276 | serge | 268 | mov ebx, pg_data.pg_mutex |
269 | call wait_mutex ;ebx |
||
164 | serge | 270 | |
271 | mov edi, [new_size] |
||
272 | add edi,4095 |
||
273 | and edi,not 4095 |
||
274 | mov [new_size], edi |
||
275 | |||
465 | serge | 276 | mov edx,[current_slot] |
277 | cmp [edx+APPDATA.heap_base],0 |
||
172 | serge | 278 | jne .exit |
279 | |||
465 | serge | 280 | mov esi, [edx+APPDATA.mem_size] |
164 | serge | 281 | add esi, 4095 |
282 | and esi, not 4095 |
||
283 | |||
284 | cmp edi, esi |
||
285 | jae .expand |
||
286 | |||
287 | shr edi, 12 |
||
288 | shr esi, 12 |
||
289 | @@: |
||
378 | serge | 290 | mov eax, [app_page_tabs+edi*4] |
164 | serge | 291 | test eax, 1 |
292 | jz .next |
||
378 | serge | 293 | mov dword [app_page_tabs+edi*4], 2 |
164 | serge | 294 | mov ebx, edi |
295 | shl ebx, 12 |
||
837 | serge | 296 | push eax |
659 | serge | 297 | invlpg [ebx] |
837 | serge | 298 | pop eax |
164 | serge | 299 | call free_page |
300 | |||
301 | .next: add edi, 1 |
||
302 | cmp edi, esi |
||
303 | jb @B |
||
304 | |||
305 | .update_size: |
||
465 | serge | 306 | mov ebx, [new_size] |
307 | call update_mem_size |
||
164 | serge | 308 | |
309 | xor eax, eax |
||
310 | dec [pg_data.pg_mutex] |
||
311 | ret |
||
312 | .expand: |
||
313 | |||
314 | push esi |
||
315 | push edi |
||
316 | |||
317 | add edi, 0x3FFFFF |
||
318 | and edi, not(0x3FFFFF) |
||
319 | add esi, 0x3FFFFF |
||
320 | and esi, not(0x3FFFFF) |
||
321 | |||
322 | cmp esi, edi |
||
323 | jae .grow |
||
324 | |||
325 | xchg esi, edi |
||
326 | |||
327 | @@: |
||
328 | call alloc_page |
||
329 | test eax, eax |
||
330 | jz .exit |
||
331 | |||
188 | serge | 332 | stdcall map_page_table, edi, eax |
164 | serge | 333 | |
334 | push edi |
||
335 | shr edi, 10 |
||
365 | serge | 336 | add edi, page_tabs |
164 | serge | 337 | mov ecx, 1024 |
338 | xor eax, eax |
||
339 | cld |
||
340 | rep stosd |
||
341 | pop edi |
||
342 | |||
343 | add edi, 0x00400000 |
||
344 | cmp edi, esi |
||
345 | jb @B |
||
346 | .grow: |
||
347 | pop edi |
||
348 | pop esi |
||
349 | @@: |
||
350 | call alloc_page |
||
351 | test eax, eax |
||
352 | jz .exit |
||
353 | stdcall map_page,esi,eax,dword PG_UW |
||
354 | |||
355 | push edi |
||
356 | mov edi, esi |
||
357 | xor eax, eax |
||
358 | mov ecx, 1024 |
||
359 | cld |
||
360 | rep stosd |
||
361 | pop edi |
||
362 | |||
363 | add esi, 0x1000 |
||
364 | cmp esi, edi |
||
294 | diamond | 365 | jb @B |
164 | serge | 366 | |
367 | jmp .update_size |
||
368 | .exit: |
||
369 | xor eax, eax |
||
370 | inc eax |
||
371 | dec [pg_data.pg_mutex] |
||
372 | ret |
||
373 | endp |
||
374 | |||
294 | diamond | 375 | update_mem_size: |
465 | serge | 376 | ; in: edx = slot base |
294 | diamond | 377 | ; ebx = new memory size |
378 | ; destroys eax,ecx,edx |
||
379 | |||
465 | serge | 380 | mov [APPDATA.mem_size+edx],ebx |
294 | diamond | 381 | ;search threads and update |
382 | ;application memory size infomation |
||
465 | serge | 383 | mov ecx,[APPDATA.dir_table+edx] |
294 | diamond | 384 | mov eax,2 |
385 | |||
386 | .search_threads: |
||
387 | ;eax = current slot |
||
388 | ;ebx = new memory size |
||
389 | ;ecx = page directory |
||
390 | cmp eax,[TASK_COUNT] |
||
391 | jg .search_threads_end |
||
392 | mov edx,eax |
||
393 | shl edx,5 |
||
394 | cmp word [CURRENT_TASK+edx+TASKDATA.state],9 ;if slot empty? |
||
395 | jz .search_threads_next |
||
396 | shl edx,3 |
||
380 | serge | 397 | cmp [SLOT_BASE+edx+APPDATA.dir_table],ecx ;if it is our thread? |
294 | diamond | 398 | jnz .search_threads_next |
380 | serge | 399 | mov [SLOT_BASE+edx+APPDATA.mem_size],ebx ;update memory size |
294 | diamond | 400 | .search_threads_next: |
401 | inc eax |
||
402 | jmp .search_threads |
||
403 | .search_threads_end: |
||
404 | ret |
||
405 | |||
285 | serge | 406 | ; param |
407 | ; eax= linear address |
||
408 | ; |
||
409 | ; retval |
||
410 | ; eax= phisical page address |
||
411 | |||
164 | serge | 412 | align 4 |
285 | serge | 413 | get_pg_addr: |
414 | shr eax, 12 |
||
365 | serge | 415 | mov eax, [page_tabs+eax*4] |
164 | serge | 416 | and eax, 0xFFFFF000 |
417 | ret |
||
418 | |||
465 | serge | 419 | |
188 | serge | 420 | align 4 |
164 | serge | 421 | proc page_fault_handler |
465 | serge | 422 | |
709 | diamond | 423 | test byte [esp+12+2], 2 |
424 | jnz v86_page_fault |
||
425 | |||
465 | serge | 426 | .err_code equ ebp+32 |
427 | .err_addr equ ebp-4 |
||
428 | |||
164 | serge | 429 | pushad |
430 | mov ebp, esp |
||
431 | mov eax, cr2 |
||
172 | serge | 432 | push eax |
164 | serge | 433 | |
465 | serge | 434 | mov ax, app_data |
164 | serge | 435 | mov ds, ax |
188 | serge | 436 | mov es, ax |
164 | serge | 437 | |
188 | serge | 438 | inc [pg_data.pages_faults] |
439 | |||
465 | serge | 440 | mov ebx, [.err_addr] |
441 | mov eax, [.err_code] |
||
164 | serge | 442 | |
843 | serge | 443 | ; xchg bx, bx |
839 | serge | 444 | |
445 | cmp ebx, HEAP_BASE |
||
465 | serge | 446 | jb .user_space ;ñòðàíèöà â ïàìÿòè ïðèëîæåíèÿ ; |
188 | serge | 447 | |
839 | serge | 448 | cmp ebx, LFB_BASE |
449 | jb .kernel_heap |
||
450 | |||
378 | serge | 451 | cmp ebx, page_tabs |
839 | serge | 452 | jb .lfb |
164 | serge | 453 | |
839 | serge | 454 | cmp ebx, OS_BASE |
455 | jb .core_tabs |
||
456 | |||
457 | jmp .core_tabs |
||
458 | |||
459 | ; cmp ebx, kernel_tabs |
||
460 | ; jb .alloc;.app_tabs ;òàáëèöû ñòðàíèö ïðèëîæåíèÿ ; |
||
465 | serge | 461 | ;ïðîñòî ñîçäàäèì îäíó |
378 | serge | 462 | |
465 | serge | 463 | .lfb: |
839 | serge | 464 | shr ebx, 22 |
848 | serge | 465 | mov edx, [_sys_pdbr + ebx*4] |
839 | serge | 466 | mov [master_tab + ebx*4], edx |
467 | jmp .exit |
||
164 | serge | 468 | |
839 | serge | 469 | .core_tabs: |
470 | |||
471 | shr ebx, 12 |
||
472 | and ebx, 0x3FF |
||
473 | mov edx, [master_tab + ebx*4] |
||
474 | test edx, PG_MAP |
||
475 | jz .check_ptab ;òàáëèöà ñòðàíèö íå ñîçäàíà |
||
476 | |||
465 | serge | 477 | align 4 |
839 | serge | 478 | .kernel_heap: |
479 | |||
480 | shr ebx, 22 |
||
481 | mov edx, [master_tab + ebx*4] |
||
482 | test edx, PG_MAP |
||
483 | jz .check_ptab ;òàáëèöà ñòðàíèö íå ñîçäàíà |
||
484 | |||
485 | .check_ptab: |
||
848 | serge | 486 | mov edx, [_sys_pdbr + ebx*4] |
839 | serge | 487 | test edx, PG_MAP |
488 | jnz @F |
||
489 | |||
490 | call alloc_page |
||
491 | test eax, eax |
||
492 | jz .fail |
||
493 | |||
494 | lea edx, [eax + PG_UW] |
||
495 | lea edi, [eax + OS_BASE] |
||
496 | mov ecx, 1024 |
||
497 | xor eax, eax |
||
498 | cld |
||
499 | rep stosd |
||
500 | |||
848 | serge | 501 | mov [_sys_pdbr + ebx*4], edx |
839 | serge | 502 | @@: |
503 | mov [master_tab + ebx*4], edx |
||
504 | jmp .exit |
||
505 | |||
506 | align 4 |
||
164 | serge | 507 | .user_space: |
465 | serge | 508 | test eax, PG_MAP |
509 | jnz .err_access ;Ñòðàíèöà ïðèñóòñòâóåò |
||
510 | ;Îøèáêà äîñòóïà ? |
||
511 | |||
164 | serge | 512 | shr ebx, 12 |
172 | serge | 513 | mov ecx, ebx |
514 | shr ecx, 10 |
||
839 | serge | 515 | mov edx, [master_tab + ecx*4] |
465 | serge | 516 | test edx, PG_MAP |
517 | jz .fail ;òàáëèöà ñòðàíèö íå ñîçäàíà |
||
518 | ;íåâåðíûé àäðåñ â ïðîãðàììå |
||
172 | serge | 519 | |
365 | serge | 520 | mov eax, [page_tabs+ebx*4] |
164 | serge | 521 | test eax, 2 |
465 | serge | 522 | jz .fail ;àäðåñ íå çàðåçåðâèðîâàí äëÿ ; |
523 | ;èñïîëüçîâàíèÿ. Îøèáêà |
||
188 | serge | 524 | .alloc: |
164 | serge | 525 | call alloc_page |
566 | serge | 526 | test eax, eax |
465 | serge | 527 | jz .fail |
164 | serge | 528 | |
529 | stdcall map_page,[ebp-4],eax,dword PG_UW |
||
530 | |||
188 | serge | 531 | mov edi, [ebp-4] |
532 | and edi, 0xFFFFF000 |
||
164 | serge | 533 | mov ecx, 1024 |
534 | xor eax, eax |
||
188 | serge | 535 | cld |
536 | rep stosd |
||
164 | serge | 537 | .exit: |
538 | mov esp, ebp |
||
539 | popad |
||
540 | add esp, 4 |
||
541 | iretd |
||
465 | serge | 542 | |
543 | .err_access: |
||
544 | ;íèêîãäà íå ïðîèñõîäèò |
||
545 | jmp .fail |
||
546 | |||
547 | .kernel_space: |
||
548 | test eax, PG_MAP |
||
549 | jz .fail ;ñòðàíèöà íå ïðèñóòñòâóåò |
||
550 | |||
551 | test eax, 4 ;U/S |
||
552 | jnz .fail ;ïðèëîæåíèå îáðàòèëîñü ê ïàìÿòè |
||
553 | ;ÿäðà |
||
554 | test eax, 8 |
||
555 | jnz .fail ;óñòàíîâëåí çàðåçåðâèðîâàííûé áèò |
||
556 | ;â òàáëèöàõ ñòðàíèö. äîáàâëåíî â P4/Xeon |
||
557 | |||
558 | ;ïîïûòêà çàïèñè â çàùèù¸ííóþ ñòðàíèöó ÿäðà |
||
559 | |||
560 | cmp ebx, tss._io_map_0 |
||
561 | jb .fail |
||
562 | |||
563 | cmp ebx, tss._io_map_0+8192 |
||
564 | jae .fail |
||
565 | |||
566 | ; io permission map |
||
567 | ; copy-on-write protection |
||
568 | |||
569 | call alloc_page |
||
566 | serge | 570 | test eax, eax |
465 | serge | 571 | jz .fail |
572 | |||
573 | push eax |
||
574 | stdcall map_page,[ebp-4],eax,dword PG_SW |
||
575 | pop eax |
||
576 | mov edi, [.err_addr] |
||
577 | and edi, -4096 |
||
578 | lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0 |
||
579 | |||
580 | mov ebx, esi |
||
581 | shr ebx, 12 |
||
582 | mov edx, [current_slot] |
||
583 | or eax, PG_SW |
||
584 | mov [edx+APPDATA.io_map+ebx*4], eax |
||
585 | |||
586 | add esi, [default_io_map] |
||
587 | mov ecx, 4096/4 |
||
588 | cld |
||
589 | rep movsd |
||
590 | jmp .exit |
||
591 | |||
592 | |||
593 | ;íå îáðàáàòûâàåì. Îøèáêà |
||
594 | |||
172 | serge | 595 | .fail: |
596 | mov esp, ebp |
||
597 | popad |
||
598 | add esp, 4 |
||
164 | serge | 599 | |
465 | serge | 600 | ; iretd |
601 | |||
172 | serge | 602 | save_ring3_context ;debugger support |
603 | |||
604 | mov bl, 14 |
||
605 | jmp exc_c |
||
606 | iretd |
||
164 | serge | 607 | endp |
608 | |||
609 | align 4 |
||
610 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
||
611 | ofs:dword,buf_size:dword |
||
612 | mov eax, [buf_size] |
||
613 | test eax, eax |
||
614 | jz .exit |
||
615 | |||
616 | mov eax, [pdir] |
||
617 | and eax, 0xFFFFF000 |
||
618 | |||
536 | diamond | 619 | stdcall map_page,[ipc_pdir],eax,PG_UW |
164 | serge | 620 | mov ebx, [ofs] |
621 | shr ebx, 22 |
||
622 | mov esi, [ipc_pdir] |
||
623 | mov edi, [ipc_ptab] |
||
624 | mov eax, [esi+ebx*4] |
||
625 | and eax, 0xFFFFF000 |
||
626 | jz .exit |
||
536 | diamond | 627 | stdcall map_page,edi,eax,PG_UW |
164 | serge | 628 | ; inc ebx |
629 | ; add edi, 0x1000 |
||
630 | ; mov eax, [esi+ebx*4] |
||
631 | ; test eax, eax |
||
632 | ; jz @f |
||
633 | ; and eax, 0xFFFFF000 |
||
634 | ; stdcall map_page, edi, eax |
||
635 | |||
636 | @@: mov edi, [lin_addr] |
||
637 | and edi, 0xFFFFF000 |
||
638 | mov ecx, [buf_size] |
||
639 | add ecx, 4095 |
||
640 | shr ecx, 12 |
||
641 | inc ecx |
||
642 | |||
643 | mov edx, [ofs] |
||
644 | shr edx, 12 |
||
645 | and edx, 0x3FF |
||
646 | mov esi, [ipc_ptab] |
||
647 | |||
648 | .map: mov eax, [esi+edx*4] |
||
649 | and eax, 0xFFFFF000 |
||
536 | diamond | 650 | jz .exit |
651 | stdcall map_page,edi,eax,PG_UW |
||
652 | dec ecx |
||
653 | jz .exit |
||
164 | serge | 654 | add edi, 0x1000 |
655 | inc edx |
||
536 | diamond | 656 | cmp edx, 0x400 |
164 | serge | 657 | jnz .map |
536 | diamond | 658 | inc ebx |
659 | mov eax, [ipc_pdir] |
||
660 | mov eax, [eax+ebx*4] |
||
661 | and eax, 0xFFFFF000 |
||
662 | jz .exit |
||
663 | stdcall map_page,esi,eax,PG_UW |
||
664 | xor edx, edx |
||
665 | jmp .map |
||
164 | serge | 666 | |
667 | .exit: |
||
668 | ret |
||
669 | endp |
||
670 | |||
671 | align 4 |
||
672 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
||
673 | ofs:dword,buf_size:dword |
||
674 | mov eax, [buf_size] |
||
675 | test eax, eax |
||
676 | jz .exit |
||
677 | |||
678 | mov eax, [pdir] |
||
679 | and eax, 0xFFFFF000 |
||
680 | |||
681 | stdcall map_page,[proc_mem_pdir],eax,dword PG_UW |
||
682 | mov ebx, [ofs] |
||
683 | shr ebx, 22 |
||
684 | mov esi, [proc_mem_pdir] |
||
685 | mov edi, [proc_mem_tab] |
||
686 | mov eax, [esi+ebx*4] |
||
687 | and eax, 0xFFFFF000 |
||
688 | test eax, eax |
||
689 | jz .exit |
||
690 | stdcall map_page,edi,eax,dword PG_UW |
||
691 | |||
692 | @@: mov edi, [lin_addr] |
||
693 | and edi, 0xFFFFF000 |
||
694 | mov ecx, [buf_size] |
||
695 | add ecx, 4095 |
||
696 | shr ecx, 12 |
||
697 | inc ecx |
||
698 | |||
699 | mov edx, [ofs] |
||
700 | shr edx, 12 |
||
701 | and edx, 0x3FF |
||
702 | mov esi, [proc_mem_tab] |
||
703 | |||
704 | .map: mov eax, [esi+edx*4] |
||
705 | ; and eax, 0xFFFFF000 |
||
706 | ; test eax, eax |
||
707 | ; jz .exit |
||
708 | stdcall map_page,edi,eax,dword PG_UW |
||
709 | add edi, 0x1000 |
||
710 | inc edx |
||
711 | dec ecx |
||
712 | jnz .map |
||
713 | .exit: |
||
714 | ret |
||
715 | endp |
||
716 | |||
717 | |||
718 | |||
719 | |||
720 | sys_IPC: |
||
721 | ;input: |
||
722 | ; eax=1 - set ipc buffer area |
||
723 | ; ebx=address of buffer |
||
724 | ; ecx=size of buffer |
||
725 | ; eax=2 - send message |
||
726 | ; ebx=PID |
||
727 | ; ecx=address of message |
||
728 | ; edx=size of message |
||
729 | |||
730 | cmp eax,1 |
||
731 | jne @f |
||
732 | call set_ipc_buff |
||
733 | mov [esp+36], eax |
||
734 | ret |
||
735 | @@: |
||
736 | cmp eax, 2 |
||
737 | jne @f |
||
738 | stdcall sys_ipc_send, ebx, ecx, edx |
||
739 | mov [esp+36], eax |
||
740 | ret |
||
741 | @@: |
||
742 | xor eax, eax |
||
743 | not eax |
||
744 | mov [esp+36], eax |
||
745 | ret |
||
746 | |||
747 | align 4 |
||
748 | proc set_ipc_buff |
||
749 | |||
465 | serge | 750 | mov eax,[current_slot] |
164 | serge | 751 | pushf |
752 | cli |
||
465 | serge | 753 | mov [eax+APPDATA.ipc_start],ebx ;set fields in extended information area |
754 | mov [eax+APPDATA.ipc_size],ecx |
||
164 | serge | 755 | |
756 | add ecx, ebx |
||
757 | add ecx, 4095 |
||
758 | and ecx, not 4095 |
||
759 | |||
760 | .touch: mov eax, [ebx] |
||
761 | add ebx, 0x1000 |
||
762 | cmp ebx, ecx |
||
536 | diamond | 763 | jb .touch |
164 | serge | 764 | |
765 | popf |
||
766 | xor eax, eax |
||
767 | ret |
||
768 | endp |
||
769 | |||
770 | proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword |
||
771 | locals |
||
772 | dst_slot dd ? |
||
773 | dst_offset dd ? |
||
774 | buf_size dd ? |
||
536 | diamond | 775 | used_buf dd ? |
164 | serge | 776 | endl |
777 | |||
778 | pushf |
||
779 | cli |
||
780 | |||
781 | mov eax, [PID] |
||
782 | call pid_to_slot |
||
783 | test eax,eax |
||
784 | jz .no_pid |
||
785 | |||
786 | mov [dst_slot], eax |
||
787 | shl eax,8 |
||
380 | serge | 788 | mov edi,[eax+SLOT_BASE+0xa0] ;is ipc area defined? |
164 | serge | 789 | test edi,edi |
790 | jz .no_ipc_area |
||
791 | |||
792 | mov ebx, edi |
||
793 | and ebx, 0xFFF |
||
794 | mov [dst_offset], ebx |
||
795 | |||
380 | serge | 796 | mov esi, [eax+SLOT_BASE+0xa4] |
164 | serge | 797 | mov [buf_size], esi |
798 | |||
536 | diamond | 799 | mov ecx, [ipc_tmp] |
800 | cmp esi, 0x40000-0x1000 ; size of [ipc_tmp] minus one page |
||
801 | jbe @f |
||
802 | push eax esi edi |
||
803 | add esi,0x1000 |
||
804 | stdcall alloc_kernel_space,esi |
||
805 | mov ecx, eax |
||
806 | pop edi esi eax |
||
807 | @@: |
||
808 | mov [used_buf], ecx |
||
809 | stdcall map_mem, ecx, [SLOT_BASE+eax+0xB8],\ |
||
164 | serge | 810 | edi, esi |
811 | |||
812 | mov edi, [dst_offset] |
||
536 | diamond | 813 | add edi, [used_buf] |
164 | serge | 814 | cmp dword [edi], 0 |
815 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
227 | serge | 816 | |
566 | serge | 817 | mov edx, dword [edi+4] |
818 | lea ebx, [edx+8] |
||
164 | serge | 819 | add ebx, [msg_size] |
820 | cmp ebx, [buf_size] |
||
821 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
||
227 | serge | 822 | |
164 | serge | 823 | mov dword [edi+4], ebx |
824 | mov eax,[TASK_BASE] |
||
825 | mov eax, [eax+0x04] ;eax - our PID |
||
826 | add edi, edx |
||
827 | mov [edi], eax |
||
828 | mov ecx, [msg_size] |
||
829 | |||
830 | mov [edi+4], ecx |
||
831 | add edi, 8 |
||
832 | mov esi, [msg_addr] |
||
465 | serge | 833 | ; add esi, new_app_base |
164 | serge | 834 | cld |
835 | rep movsb |
||
836 | |||
837 | mov ebx, [ipc_tmp] |
||
838 | mov edx, ebx |
||
839 | shr ebx, 12 |
||
840 | xor eax, eax |
||
365 | serge | 841 | mov [page_tabs+ebx*4], eax |
164 | serge | 842 | invlpg [edx] |
843 | |||
844 | mov ebx, [ipc_pdir] |
||
845 | mov edx, ebx |
||
846 | shr ebx, 12 |
||
847 | xor eax, eax |
||
365 | serge | 848 | mov [page_tabs+ebx*4], eax |
164 | serge | 849 | invlpg [edx] |
850 | |||
851 | mov ebx, [ipc_ptab] |
||
852 | mov edx, ebx |
||
853 | shr ebx, 12 |
||
854 | xor eax, eax |
||
365 | serge | 855 | mov [page_tabs+ebx*4], eax |
164 | serge | 856 | invlpg [edx] |
857 | |||
858 | mov eax, [dst_slot] |
||
859 | shl eax, 8 |
||
380 | serge | 860 | or [eax+SLOT_BASE+0xA8],dword 0x40 |
164 | serge | 861 | cmp dword [check_idle_semaphore],20 |
862 | jge .ipc_no_cis |
||
863 | |||
864 | mov dword [check_idle_semaphore],5 |
||
865 | .ipc_no_cis: |
||
536 | diamond | 866 | push 0 |
867 | jmp .ret |
||
164 | serge | 868 | .no_pid: |
869 | popf |
||
536 | diamond | 870 | mov eax, 4 |
164 | serge | 871 | ret |
872 | .no_ipc_area: |
||
873 | popf |
||
874 | xor eax, eax |
||
875 | inc eax |
||
876 | ret |
||
877 | .ipc_blocked: |
||
536 | diamond | 878 | push 2 |
879 | jmp .ret |
||
164 | serge | 880 | .buffer_overflow: |
536 | diamond | 881 | push 3 |
882 | .ret: |
||
883 | mov eax, [used_buf] |
||
884 | cmp eax, [ipc_tmp] |
||
885 | jz @f |
||
886 | stdcall free_kernel_space,eax |
||
887 | @@: |
||
888 | pop eax |
||
164 | serge | 889 | popf |
890 | ret |
||
891 | endp |
||
892 | |||
893 | align 4 |
||
170 | serge | 894 | sysfn_meminfo: |
164 | serge | 895 | |
465 | serge | 896 | ; add ebx, new_app_base |
897 | cmp ebx, OS_BASE |
||
898 | jae .fail |
||
172 | serge | 899 | |
164 | serge | 900 | mov eax, [pg_data.pages_count] |
170 | serge | 901 | mov [ebx], eax |
172 | serge | 902 | shl eax, 12 |
903 | mov [esp+36], eax |
||
170 | serge | 904 | mov ecx, [pg_data.pages_free] |
905 | mov [ebx+4], ecx |
||
906 | mov edx, [pg_data.pages_faults] |
||
907 | mov [ebx+8], edx |
||
908 | mov esi, [heap_size] |
||
909 | mov [ebx+12], esi |
||
910 | mov edi, [heap_free] |
||
911 | mov [ebx+16], edi |
||
912 | mov eax, [heap_blocks] |
||
913 | mov [ebx+20], eax |
||
914 | mov ecx, [free_blocks] |
||
915 | mov [ebx+24], ecx |
||
164 | serge | 916 | ret |
172 | serge | 917 | .fail: |
918 | mov dword [esp+36], -1 |
||
919 | ret |
||
164 | serge | 920 | |
921 | align 4 |
||
922 | new_services: |
||
923 | |||
924 | cmp eax,4 |
||
925 | jle sys_sheduler |
||
926 | |||
170 | serge | 927 | cmp eax, 11 |
164 | serge | 928 | jb .fail |
929 | ja @f |
||
930 | |||
188 | serge | 931 | call init_heap |
164 | serge | 932 | mov [esp+36], eax |
933 | ret |
||
934 | @@: |
||
935 | cmp eax, 12 |
||
936 | ja @f |
||
937 | |||
938 | stdcall user_alloc, ebx |
||
939 | mov [esp+36], eax |
||
940 | ret |
||
941 | @@: |
||
942 | cmp eax, 13 |
||
943 | ja @f |
||
944 | stdcall user_free, ebx |
||
945 | mov [esp+36], eax |
||
946 | ret |
||
947 | @@: |
||
948 | cmp eax, 14 |
||
949 | ja @f |
||
465 | serge | 950 | cmp ebx, OS_BASE |
951 | jae .fail |
||
227 | serge | 952 | stdcall get_event_ex, ebx, ecx |
953 | mov [esp+36], eax |
||
164 | serge | 954 | ret |
955 | @@: |
||
956 | cmp eax, 15 |
||
957 | ja @f |
||
465 | serge | 958 | mov ecx, [current_slot] |
959 | mov eax, [ecx+APPDATA.fpu_handler] |
||
960 | mov [ecx+APPDATA.fpu_handler], ebx |
||
164 | serge | 961 | mov [esp+36], eax |
962 | ret |
||
963 | @@: |
||
964 | cmp eax, 16 |
||
965 | ja @f |
||
966 | |||
188 | serge | 967 | test ebx, ebx |
968 | jz .fail |
||
465 | serge | 969 | cmp ebx, OS_BASE |
970 | jae .fail |
||
164 | serge | 971 | stdcall get_service, ebx |
972 | mov [esp+36], eax |
||
973 | ret |
||
974 | @@: |
||
975 | cmp eax, 17 |
||
976 | ja @f |
||
378 | serge | 977 | call srv_handlerEx ;ebx |
164 | serge | 978 | mov [esp+36], eax |
979 | ret |
||
168 | serge | 980 | @@: |
981 | cmp eax, 18 |
||
982 | ja @f |
||
465 | serge | 983 | mov ecx, [current_slot] |
984 | mov eax, [ecx+APPDATA.sse_handler] |
||
985 | mov [ecx+APPDATA.sse_handler], ebx |
||
168 | serge | 986 | mov [esp+36], eax |
987 | ret |
||
164 | serge | 988 | @@: |
198 | serge | 989 | cmp eax, 19 |
448 | diamond | 990 | ja @f |
465 | serge | 991 | cmp ebx, OS_BASE |
992 | jae .fail |
||
198 | serge | 993 | stdcall load_library, ebx |
994 | mov [esp+36], eax |
||
995 | ret |
||
448 | diamond | 996 | @@: |
490 | serge | 997 | cmp eax, 20 |
740 | serge | 998 | ja @F |
490 | serge | 999 | mov eax, ecx |
1000 | call user_realloc |
||
1001 | mov [esp+36], eax |
||
1002 | ret |
||
740 | serge | 1003 | @@: |
747 | serge | 1004 | cmp eax, 21 ;for test purposes only |
1005 | ja @f ;will be removed soon |
||
740 | serge | 1006 | cmp ebx, OS_BASE |
1007 | jae .fail |
||
1008 | |||
1009 | stdcall load_PE, ebx |
||
1010 | |||
1011 | test eax, eax |
||
1012 | jz @F |
||
1013 | |||
1014 | mov esi, eax |
||
1015 | stdcall eax, DRV_ENTRY |
||
1016 | |||
1017 | test eax, eax |
||
1018 | jz @F |
||
1019 | |||
1020 | mov [eax+SRV.entry], esi |
||
1021 | |||
1022 | @@: |
||
1023 | mov [esp+36], eax |
||
1024 | ret |
||
1025 | |||
1026 | |||
164 | serge | 1027 | .fail: |
1028 | xor eax, eax |
||
1029 | mov [esp+36], eax |
||
1030 | ret |
||
1031 | |||
1032 | align 4 |
||
819 | serge | 1033 | proc load_pe_driver stdcall, file:dword |
1034 | |||
1035 | stdcall load_PE, [file] |
||
1036 | test eax, eax |
||
1037 | jz .fail |
||
1038 | |||
1039 | mov esi, eax |
||
1040 | stdcall eax, DRV_ENTRY |
||
1041 | test eax, eax |
||
1042 | jz .fail |
||
1043 | |||
1044 | mov [eax+SRV.entry], esi |
||
1045 | ret |
||
1046 | |||
1047 | .fail: |
||
1048 | xor eax, eax |
||
1049 | ret |
||
1050 | endp |
||
1051 | |||
1052 | |||
1053 | align 4 |
||
164 | serge | 1054 | proc init_mtrr |
1055 | |||
412 | serge | 1056 | cmp [BOOT_VAR+0x901c],byte 2 |
164 | serge | 1057 | je .exit |
1058 | |||
211 | serge | 1059 | bt [cpu_caps], CAPS_MTRR |
1060 | jnc .exit |
||
1061 | |||
164 | serge | 1062 | mov eax, cr0 |
1063 | or eax, 0x60000000 ;disable caching |
||
1064 | mov cr0, eax |
||
1065 | wbinvd ;invalidate cache |
||
1066 | |||
1067 | mov ecx, 0x2FF |
||
1068 | rdmsr ; |
||
1069 | push eax |
||
1070 | |||
1071 | xor edx, edx |
||
1072 | xor eax, eax |
||
1073 | mov ecx, 0x2FF |
||
1074 | wrmsr ;disable all MTRR |
||
1075 | |||
846 | serge | 1076 | mov eax, [_mem_amount] |
821 | diamond | 1077 | ; round eax up to next power of 2 |
1078 | dec eax |
||
1079 | bsr ecx, eax |
||
1080 | mov eax, 2 |
||
1081 | shl eax, cl |
||
1082 | stdcall set_mtrr, edx,edx,eax,MEM_WB |
||
1083 | stdcall set_mtrr, 1,[LFBAddress],[LFBSize],MEM_WC |
||
164 | serge | 1084 | xor edx, edx |
1085 | xor eax, eax |
||
1086 | mov ecx, 0x204 |
||
1087 | mov ebx, 6 |
||
1088 | @@: |
||
1089 | wrmsr ;disable unused MTRR |
||
1090 | inc ecx |
||
1091 | wrmsr |
||
1092 | inc ecx |
||
1093 | dec ebx |
||
1094 | jnz @b |
||
1095 | |||
1096 | wbinvd ;again invalidate |
||
1097 | |||
1098 | pop eax |
||
1099 | or eax, 0x800 ;set default memtype to UC |
||
1100 | and al, 0xF0 |
||
1101 | mov ecx, 0x2FF |
||
1102 | wrmsr ;and enable MTRR |
||
1103 | |||
1104 | mov eax, cr0 |
||
1105 | and eax, not 0x60000000 |
||
1106 | mov cr0, eax ; enable caching |
||
1107 | .exit: |
||
1108 | ret |
||
1109 | endp |
||
1110 | |||
1111 | align 4 |
||
1112 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
||
1113 | |||
1114 | xor edx, edx |
||
1115 | mov eax, [base] |
||
1116 | or eax, [mem_type] |
||
1117 | mov ecx, [reg] |
||
1118 | lea ecx, [0x200+ecx*2] |
||
1119 | wrmsr |
||
1120 | |||
1121 | mov ebx, [size] |
||
1122 | dec ebx |
||
1123 | mov eax, 0xFFFFFFFF |
||
1124 | mov edx, 0x0000000F |
||
1125 | sub eax, ebx |
||
1126 | sbb edx, 0 |
||
1127 | or eax, 0x800 |
||
1128 | inc ecx |
||
1129 | wrmsr |
||
1130 | ret |
||
1131 | endp |
||
1132 | |||
465 | serge | 1133 | align 4 |
172 | serge | 1134 | proc stall stdcall, delay:dword |
1135 | push ecx |
||
1136 | push edx |
||
1137 | push ebx |
||
1138 | push eax |
||
1139 | |||
1140 | mov eax, [delay] |
||
1141 | mul [stall_mcs] |
||
1142 | mov ebx, eax ;low |
||
1143 | mov ecx, edx ;high |
||
1144 | rdtsc |
||
1145 | add ebx, eax |
||
1146 | adc ecx,edx |
||
1147 | @@: |
||
1148 | rdtsc |
||
1149 | sub eax, ebx |
||
1150 | sbb edx, ecx |
||
1151 | jb @B |
||
1152 | |||
1153 | pop eax |
||
1154 | pop ebx |
||
1155 | pop edx |
||
1156 | pop ecx |
||
1157 | ret |
||
1158 | endp |
||
1159 | |||
520 | serge | 1160 | align 4 |
1161 | proc create_ring_buffer stdcall, size:dword, flags:dword |
||
1162 | locals |
||
1163 | buf_ptr dd ? |
||
1164 | endl |
||
237 | serge | 1165 | |
520 | serge | 1166 | mov eax, [size] |
1167 | test eax, eax |
||
1168 | jz .fail |
||
1169 | |||
1170 | add eax, eax |
||
1171 | stdcall alloc_kernel_space, eax |
||
1172 | test eax, eax |
||
1173 | jz .fail |
||
1174 | |||
662 | serge | 1175 | push ebx |
1176 | |||
520 | serge | 1177 | mov [buf_ptr], eax |
1178 | |||
1179 | mov ebx, [size] |
||
1180 | shr ebx, 12 |
||
1181 | push ebx |
||
1182 | |||
1183 | stdcall alloc_pages, ebx |
||
1184 | pop ecx |
||
1185 | |||
1186 | test eax, eax |
||
1187 | jz .mm_fail |
||
1188 | |||
662 | serge | 1189 | push edi |
1190 | |||
520 | serge | 1191 | or eax, [flags] |
1192 | mov edi, [buf_ptr] |
||
1193 | mov ebx, [buf_ptr] |
||
1194 | mov edx, ecx |
||
566 | serge | 1195 | shl edx, 2 |
520 | serge | 1196 | shr edi, 10 |
1197 | @@: |
||
1198 | mov [page_tabs+edi], eax |
||
1199 | mov [page_tabs+edi+edx], eax |
||
1200 | add eax, 0x1000 |
||
1201 | add ebx, 0x1000 |
||
566 | serge | 1202 | add edi, 4 |
520 | serge | 1203 | dec ecx |
1204 | jnz @B |
||
1205 | |||
1206 | mov eax, [buf_ptr] |
||
662 | serge | 1207 | pop edi |
1208 | pop ebx |
||
520 | serge | 1209 | ret |
1210 | .mm_fail: |
||
1211 | stdcall free_kernel_space, [buf_ptr] |
||
1212 | xor eax, eax |
||
662 | serge | 1213 | pop ebx |
520 | serge | 1214 | .fail: |
1215 | ret |
||
1216 | endp |
||
1217 | |||
465 | serge | 1218 | |
841 | serge | 1219 | align 4 |
1220 | _balloc: ; gcc fastcall |
||
843 | serge | 1221 | @balloc@4: |
841 | serge | 1222 | |
843 | serge | 1223 | |
1224 | mov eax, [_pg_balloc] |
||
841 | serge | 1225 | add ecx, 4095 |
1226 | and ecx, -4096 |
||
1227 | add ecx, eax |
||
843 | serge | 1228 | mov [_pg_balloc], ecx |
841 | serge | 1229 | add eax, OS_BASE |
1230 | ret0>> |
||
1231 |