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1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
2 | ;; ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
5 | ;; ;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
7 | 7 | ||
8 | $Revision: 819 $ |
8 | $Revision: 821 $ |
9 | 9 | ||
10 | 10 | ||
11 | align 4 |
11 | align 4 |
12 | proc alloc_page |
12 | proc alloc_page |
13 | 13 | ||
14 | pushfd |
14 | pushfd |
15 | cli |
15 | cli |
16 | push ebx |
16 | push ebx |
17 | mov ebx, [page_start] |
17 | mov ebx, [page_start] |
18 | mov ecx, [page_end] |
18 | mov ecx, [page_end] |
19 | .l1: |
19 | .l1: |
20 | bsf eax,[ebx]; |
20 | bsf eax,[ebx]; |
21 | jnz .found |
21 | jnz .found |
22 | add ebx,4 |
22 | add ebx,4 |
23 | cmp ebx, ecx |
23 | cmp ebx, ecx |
24 | jb .l1 |
24 | jb .l1 |
25 | pop ebx |
25 | pop ebx |
26 | popfd |
26 | popfd |
27 | xor eax,eax |
27 | xor eax,eax |
28 | ret |
28 | ret |
29 | .found: |
29 | .found: |
30 | btr [ebx], eax |
30 | btr [ebx], eax |
31 | mov [page_start],ebx |
31 | mov [page_start],ebx |
32 | sub ebx, sys_pgmap |
32 | sub ebx, sys_pgmap |
33 | lea eax, [eax+ebx*8] |
33 | lea eax, [eax+ebx*8] |
34 | shl eax, 12 |
34 | shl eax, 12 |
35 | dec [pg_data.pages_free] |
35 | dec [pg_data.pages_free] |
36 | pop ebx |
36 | pop ebx |
37 | popfd |
37 | popfd |
38 | ret |
38 | ret |
39 | endp |
39 | endp |
40 | 40 | ||
41 | align 4 |
41 | align 4 |
42 | proc alloc_pages stdcall, count:dword |
42 | proc alloc_pages stdcall, count:dword |
43 | pushfd |
43 | pushfd |
44 | push ebx |
44 | push ebx |
45 | push edi |
45 | push edi |
46 | cli |
46 | cli |
47 | mov eax, [count] |
47 | mov eax, [count] |
48 | add eax, 7 |
48 | add eax, 7 |
49 | shr eax, 3 |
49 | shr eax, 3 |
50 | mov [count], eax |
50 | mov [count], eax |
51 | cmp eax, [pg_data.pages_free] |
51 | cmp eax, [pg_data.pages_free] |
52 | ja .fail |
52 | ja .fail |
53 | 53 | ||
54 | mov ecx, [page_start] |
54 | mov ecx, [page_start] |
55 | mov ebx, [page_end] |
55 | mov ebx, [page_end] |
56 | .find: |
56 | .find: |
57 | mov edx, [count] |
57 | mov edx, [count] |
58 | mov edi, ecx |
58 | mov edi, ecx |
59 | .match: |
59 | .match: |
60 | cmp byte [ecx], 0xFF |
60 | cmp byte [ecx], 0xFF |
61 | jne .next |
61 | jne .next |
62 | dec edx |
62 | dec edx |
63 | jz .ok |
63 | jz .ok |
64 | inc ecx |
64 | inc ecx |
65 | cmp ecx,ebx |
65 | cmp ecx,ebx |
66 | jb .match |
66 | jb .match |
67 | .fail: |
67 | .fail: |
68 | xor eax, eax |
68 | xor eax, eax |
69 | pop edi |
69 | pop edi |
70 | pop ebx |
70 | pop ebx |
71 | popfd |
71 | popfd |
72 | ret |
72 | ret |
73 | .next: |
73 | .next: |
74 | inc ecx |
74 | inc ecx |
75 | cmp ecx, ebx |
75 | cmp ecx, ebx |
76 | jb .find |
76 | jb .find |
77 | pop edi |
77 | pop edi |
78 | pop ebx |
78 | pop ebx |
79 | popfd |
79 | popfd |
80 | xor eax, eax |
80 | xor eax, eax |
81 | ret |
81 | ret |
82 | .ok: |
82 | .ok: |
83 | sub ecx, edi |
83 | sub ecx, edi |
84 | inc ecx |
84 | inc ecx |
85 | push esi |
85 | push esi |
86 | mov esi, edi |
86 | mov esi, edi |
87 | xor eax, eax |
87 | xor eax, eax |
88 | rep stosb |
88 | rep stosb |
89 | sub esi, sys_pgmap |
89 | sub esi, sys_pgmap |
90 | shl esi, 3+12 |
90 | shl esi, 3+12 |
91 | mov eax, esi |
91 | mov eax, esi |
92 | mov ebx, [count] |
92 | mov ebx, [count] |
93 | shl ebx, 3 |
93 | shl ebx, 3 |
94 | sub [pg_data.pages_free], ebx |
94 | sub [pg_data.pages_free], ebx |
95 | pop esi |
95 | pop esi |
96 | pop edi |
96 | pop edi |
97 | pop ebx |
97 | pop ebx |
98 | popfd |
98 | popfd |
99 | ret |
99 | ret |
100 | endp |
100 | endp |
101 | 101 | ||
102 | align 4 |
102 | align 4 |
103 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
103 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
104 | push ebx |
104 | push ebx |
105 | mov eax, [phis_addr] |
105 | mov eax, [phis_addr] |
106 | and eax, not 0xFFF |
106 | and eax, not 0xFFF |
107 | or eax, [flags] |
107 | or eax, [flags] |
108 | mov ebx, [lin_addr] |
108 | mov ebx, [lin_addr] |
109 | shr ebx, 12 |
109 | shr ebx, 12 |
110 | mov [page_tabs+ebx*4], eax |
110 | mov [page_tabs+ebx*4], eax |
111 | mov eax, [lin_addr] |
111 | mov eax, [lin_addr] |
112 | invlpg [eax] |
112 | invlpg [eax] |
113 | pop ebx |
113 | pop ebx |
114 | ret |
114 | ret |
115 | endp |
115 | endp |
116 | 116 | ||
117 | align 4 |
117 | align 4 |
118 | map_space: ;not implemented |
118 | map_space: ;not implemented |
119 | 119 | ||
120 | 120 | ||
121 | ret |
121 | ret |
122 | 122 | ||
123 | 123 | ||
124 | align 4 |
124 | align 4 |
125 | proc free_page |
125 | proc free_page |
126 | ;arg: eax page address |
126 | ;arg: eax page address |
127 | pushfd |
127 | pushfd |
128 | cli |
128 | cli |
129 | shr eax, 12 ;page index |
129 | shr eax, 12 ;page index |
130 | bts dword [sys_pgmap], eax ;that's all! |
130 | bts dword [sys_pgmap], eax ;that's all! |
131 | cmc |
131 | cmc |
132 | adc [pg_data.pages_free], 0 |
132 | adc [pg_data.pages_free], 0 |
133 | shr eax, 3 |
133 | shr eax, 3 |
134 | and eax, not 3 ;dword offset from page_map |
134 | and eax, not 3 ;dword offset from page_map |
135 | add eax, sys_pgmap |
135 | add eax, sys_pgmap |
136 | cmp [page_start], eax |
136 | cmp [page_start], eax |
137 | ja @f |
137 | ja @f |
138 | popfd |
138 | popfd |
139 | ret |
139 | ret |
140 | @@: |
140 | @@: |
141 | mov [page_start], eax |
141 | mov [page_start], eax |
142 | popfd |
142 | popfd |
143 | ret |
143 | ret |
144 | endp |
144 | endp |
145 | 145 | ||
146 | proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
146 | proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
147 | 147 | ||
148 | push ebx |
148 | push ebx |
149 | push edi |
149 | push edi |
150 | mov eax, [size] |
150 | mov eax, [size] |
151 | add eax, 4095 |
151 | add eax, 4095 |
152 | and eax, -4096 |
152 | and eax, -4096 |
153 | mov [size], eax |
153 | mov [size], eax |
154 | stdcall alloc_kernel_space, eax |
154 | stdcall alloc_kernel_space, eax |
155 | test eax, eax |
155 | test eax, eax |
156 | jz .fail |
156 | jz .fail |
157 | push eax |
157 | push eax |
158 | 158 | ||
159 | mov edi, 0x1000 |
159 | mov edi, 0x1000 |
160 | mov ebx, eax |
160 | mov ebx, eax |
161 | mov ecx,[size] |
161 | mov ecx,[size] |
162 | mov edx, [base] |
162 | mov edx, [base] |
163 | shr eax, 12 |
163 | shr eax, 12 |
164 | shr ecx, 12 |
164 | shr ecx, 12 |
165 | and edx, -4096 |
165 | and edx, -4096 |
166 | or edx, [flags] |
166 | or edx, [flags] |
167 | @@: |
167 | @@: |
168 | mov [page_tabs+eax*4], edx |
168 | mov [page_tabs+eax*4], edx |
169 | ; push eax |
169 | ; push eax |
170 | ; invlpg [ebx] |
170 | ; invlpg [ebx] |
171 | ; pop eax |
171 | ; pop eax |
172 | inc eax |
172 | inc eax |
173 | add ebx, edi |
173 | add ebx, edi |
174 | add edx, edi |
174 | add edx, edi |
175 | loop @B |
175 | loop @B |
176 | 176 | ||
177 | pop eax |
177 | pop eax |
178 | mov edx, [base] |
178 | mov edx, [base] |
179 | and edx, 4095 |
179 | and edx, 4095 |
180 | add eax, edx |
180 | add eax, edx |
181 | .fail: |
181 | .fail: |
182 | pop edi |
182 | pop edi |
183 | pop ebx |
183 | pop ebx |
184 | ret |
184 | ret |
185 | endp |
185 | endp |
186 | 186 | ||
187 | ; param |
187 | ; param |
188 | ; eax= page base + page flags |
188 | ; eax= page base + page flags |
189 | ; ebx= linear address |
189 | ; ebx= linear address |
190 | ; ecx= count |
190 | ; ecx= count |
191 | 191 | ||
192 | align 4 |
192 | align 4 |
193 | commit_pages: |
193 | commit_pages: |
194 | push edi |
194 | push edi |
195 | test ecx, ecx |
195 | test ecx, ecx |
196 | jz .fail |
196 | jz .fail |
197 | 197 | ||
198 | mov edi, ebx |
198 | mov edi, ebx |
199 | mov ebx, pg_data.pg_mutex |
199 | mov ebx, pg_data.pg_mutex |
200 | call wait_mutex ;ebx |
200 | call wait_mutex ;ebx |
201 | 201 | ||
202 | mov edx, 0x1000 |
202 | mov edx, 0x1000 |
203 | mov ebx, edi |
203 | mov ebx, edi |
204 | shr ebx, 12 |
204 | shr ebx, 12 |
205 | @@: |
205 | @@: |
206 | mov [page_tabs+ebx*4], eax |
206 | mov [page_tabs+ebx*4], eax |
207 | ; push eax |
207 | ; push eax |
208 | ; invlpg [edi] |
208 | ; invlpg [edi] |
209 | ; pop eax |
209 | ; pop eax |
210 | add edi, edx |
210 | add edi, edx |
211 | add eax, edx |
211 | add eax, edx |
212 | inc ebx |
212 | inc ebx |
213 | dec ecx |
213 | dec ecx |
214 | jnz @B |
214 | jnz @B |
215 | mov [pg_data.pg_mutex],ecx |
215 | mov [pg_data.pg_mutex],ecx |
216 | .fail: |
216 | .fail: |
217 | pop edi |
217 | pop edi |
218 | ret |
218 | ret |
219 | 219 | ||
220 | 220 | ||
221 | ; param |
221 | ; param |
222 | ; eax= base |
222 | ; eax= base |
223 | ; ecx= count |
223 | ; ecx= count |
224 | 224 | ||
225 | align 4 |
225 | align 4 |
226 | release_pages: |
226 | release_pages: |
227 | 227 | ||
228 | pushad |
228 | pushad |
229 | mov ebx, pg_data.pg_mutex |
229 | mov ebx, pg_data.pg_mutex |
230 | call wait_mutex ;ebx |
230 | call wait_mutex ;ebx |
231 | 231 | ||
232 | mov esi, eax |
232 | mov esi, eax |
233 | mov edi, eax |
233 | mov edi, eax |
234 | 234 | ||
235 | shr esi, 10 |
235 | shr esi, 10 |
236 | add esi, page_tabs |
236 | add esi, page_tabs |
237 | 237 | ||
238 | mov ebp, [pg_data.pages_free] |
238 | mov ebp, [pg_data.pages_free] |
239 | mov ebx, [page_start] |
239 | mov ebx, [page_start] |
240 | mov edx, sys_pgmap |
240 | mov edx, sys_pgmap |
241 | @@: |
241 | @@: |
242 | xor eax, eax |
242 | xor eax, eax |
243 | xchg eax, [esi] |
243 | xchg eax, [esi] |
244 | invlpg [edi] |
244 | invlpg [edi] |
245 | 245 | ||
246 | test eax, 1 |
246 | test eax, 1 |
247 | jz .next |
247 | jz .next |
248 | 248 | ||
249 | shr eax, 12 |
249 | shr eax, 12 |
250 | bts [edx], eax |
250 | bts [edx], eax |
251 | cmc |
251 | cmc |
252 | adc ebp, 0 |
252 | adc ebp, 0 |
253 | shr eax, 3 |
253 | shr eax, 3 |
254 | and eax, -4 |
254 | and eax, -4 |
255 | add eax, edx |
255 | add eax, edx |
256 | cmp eax, ebx |
256 | cmp eax, ebx |
257 | jae .next |
257 | jae .next |
258 | 258 | ||
259 | mov ebx, eax |
259 | mov ebx, eax |
260 | .next: |
260 | .next: |
261 | add edi, 0x1000 |
261 | add edi, 0x1000 |
262 | add esi, 4 |
262 | add esi, 4 |
263 | dec ecx |
263 | dec ecx |
264 | jnz @B |
264 | jnz @B |
265 | mov [pg_data.pages_free], ebp |
265 | mov [pg_data.pages_free], ebp |
266 | and [pg_data.pg_mutex],0 |
266 | and [pg_data.pg_mutex],0 |
267 | popad |
267 | popad |
268 | ret |
268 | ret |
269 | 269 | ||
270 | ; param |
270 | ; param |
271 | ; eax= base |
271 | ; eax= base |
272 | ; ecx= count |
272 | ; ecx= count |
273 | 273 | ||
274 | align 4 |
274 | align 4 |
275 | unmap_pages: |
275 | unmap_pages: |
276 | 276 | ||
277 | push edi |
277 | push edi |
278 | 278 | ||
279 | mov edi, eax |
279 | mov edi, eax |
280 | mov edx, eax |
280 | mov edx, eax |
281 | 281 | ||
282 | shr edi, 10 |
282 | shr edi, 10 |
283 | add edi, page_tabs |
283 | add edi, page_tabs |
284 | 284 | ||
285 | xor eax, eax |
285 | xor eax, eax |
286 | @@: |
286 | @@: |
287 | stosd |
287 | stosd |
288 | invlpg [edx] |
288 | invlpg [edx] |
289 | add edx, 0x1000 |
289 | add edx, 0x1000 |
290 | loop @b |
290 | loop @b |
291 | 291 | ||
292 | pop edi |
292 | pop edi |
293 | ret |
293 | ret |
294 | 294 | ||
295 | 295 | ||
296 | align 4 |
296 | align 4 |
297 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
297 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
298 | push ebx |
298 | push ebx |
299 | mov ebx, [lin_addr] |
299 | mov ebx, [lin_addr] |
300 | shr ebx, 22 |
300 | shr ebx, 22 |
301 | mov eax, [phis_addr] |
301 | mov eax, [phis_addr] |
302 | and eax, not 0xFFF |
302 | and eax, not 0xFFF |
303 | or eax, PG_UW ;+PG_NOCACHE |
303 | or eax, PG_UW ;+PG_NOCACHE |
304 | mov dword [master_tab+ebx*4], eax |
304 | mov dword [master_tab+ebx*4], eax |
305 | mov eax, [lin_addr] |
305 | mov eax, [lin_addr] |
306 | shr eax, 10 |
306 | shr eax, 10 |
307 | add eax, page_tabs |
307 | add eax, page_tabs |
308 | invlpg [eax] |
308 | invlpg [eax] |
309 | pop ebx |
309 | pop ebx |
310 | ret |
310 | ret |
311 | endp |
311 | endp |
312 | 312 | ||
313 | align 4 |
313 | align 4 |
314 | proc init_LFB |
314 | proc init_LFB |
315 | locals |
315 | locals |
316 | pg_count dd ? |
316 | pg_count dd ? |
317 | endl |
317 | endl |
318 | 318 | ||
319 | cmp dword [LFBAddress], -1 |
319 | cmp dword [LFBAddress], -1 |
320 | jne @f |
320 | jne @f |
321 | mov [BOOT_VAR+0x901c],byte 2 |
321 | mov [BOOT_VAR+0x901c],byte 2 |
322 | stdcall kernel_alloc, 0x280000 |
322 | stdcall kernel_alloc, 0x280000 |
323 | mov [LFBAddress], eax |
323 | mov [LFBAddress], eax |
324 | ret |
324 | ret |
325 | @@: |
325 | @@: |
326 | test [SCR_MODE],word 0100000000000000b |
326 | test [SCR_MODE],word 0100000000000000b |
327 | jnz @f |
327 | jnz @f |
328 | mov [BOOT_VAR+0x901c],byte 2 |
328 | mov [BOOT_VAR+0x901c],byte 2 |
329 | ret |
329 | ret |
330 | @@: |
330 | @@: |
331 | call init_mtrr |
331 | call init_mtrr |
332 | 332 | ||
333 | mov edx, LFB_BASE |
333 | mov edx, LFB_BASE |
334 | mov esi, [LFBAddress] |
334 | mov esi, [LFBAddress] |
335 | mov edi, 0x00800000 |
335 | mov edi, 0x00800000 |
336 | mov dword [exp_lfb+4], edx |
336 | mov dword [exp_lfb+4], edx |
337 | 337 | ||
338 | shr edi, 12 |
338 | shr edi, 12 |
339 | mov [pg_count], edi |
339 | mov [pg_count], edi |
340 | shr edi, 10 |
340 | shr edi, 10 |
341 | 341 | ||
342 | bt [cpu_caps], CAPS_PSE |
342 | bt [cpu_caps], CAPS_PSE |
343 | jnc .map_page_tables |
343 | jnc .map_page_tables |
344 | or esi, PG_LARGE+PG_UW |
344 | or esi, PG_LARGE+PG_UW |
345 | mov edx, sys_pgdir+(LFB_BASE shr 20) |
345 | mov edx, sys_pgdir+(LFB_BASE shr 20) |
346 | @@: |
346 | @@: |
347 | mov [edx], esi |
347 | mov [edx], esi |
348 | add edx, 4 |
348 | add edx, 4 |
349 | add esi, 0x00400000 |
349 | add esi, 0x00400000 |
350 | dec edi |
350 | dec edi |
351 | jnz @B |
351 | jnz @B |
352 | 352 | ||
353 | bt [cpu_caps], CAPS_PGE |
353 | bt [cpu_caps], CAPS_PGE |
354 | jnc @F |
354 | jnc @F |
355 | or dword [sys_pgdir+(LFB_BASE shr 20)], PG_GLOBAL |
355 | or dword [sys_pgdir+(LFB_BASE shr 20)], PG_GLOBAL |
356 | @@: |
356 | @@: |
357 | mov dword [LFBAddress], LFB_BASE |
357 | mov dword [LFBAddress], LFB_BASE |
358 | mov eax, cr3 ;flush TLB |
358 | mov eax, cr3 ;flush TLB |
359 | mov cr3, eax |
359 | mov cr3, eax |
360 | ret |
360 | ret |
361 | 361 | ||
362 | .map_page_tables: |
362 | .map_page_tables: |
363 | 363 | ||
364 | @@: |
364 | @@: |
365 | call alloc_page |
365 | call alloc_page |
366 | stdcall map_page_table, edx, eax |
366 | stdcall map_page_table, edx, eax |
367 | add edx, 0x00400000 |
367 | add edx, 0x00400000 |
368 | dec edi |
368 | dec edi |
369 | jnz @B |
369 | jnz @B |
370 | 370 | ||
371 | mov eax, [LFBAddress] |
371 | mov eax, [LFBAddress] |
372 | mov edi, page_tabs + (LFB_BASE shr 10) |
372 | mov edi, page_tabs + (LFB_BASE shr 10) |
373 | or eax, PG_UW |
373 | or eax, PG_UW |
374 | mov ecx, [pg_count] |
374 | mov ecx, [pg_count] |
375 | cld |
375 | cld |
376 | @@: |
376 | @@: |
377 | stosd |
377 | stosd |
378 | add eax, 0x1000 |
378 | add eax, 0x1000 |
379 | dec ecx |
379 | dec ecx |
380 | jnz @B |
380 | jnz @B |
381 | 381 | ||
382 | mov dword [LFBAddress], LFB_BASE |
382 | mov dword [LFBAddress], LFB_BASE |
383 | mov eax, cr3 ;flush TLB |
383 | mov eax, cr3 ;flush TLB |
384 | mov cr3, eax |
384 | mov cr3, eax |
385 | 385 | ||
386 | ret |
386 | ret |
387 | endp |
387 | endp |
388 | 388 | ||
389 | align 4 |
389 | align 4 |
390 | proc new_mem_resize stdcall, new_size:dword |
390 | proc new_mem_resize stdcall, new_size:dword |
391 | 391 | ||
392 | mov ebx, pg_data.pg_mutex |
392 | mov ebx, pg_data.pg_mutex |
393 | call wait_mutex ;ebx |
393 | call wait_mutex ;ebx |
394 | 394 | ||
395 | mov edi, [new_size] |
395 | mov edi, [new_size] |
396 | add edi,4095 |
396 | add edi,4095 |
397 | and edi,not 4095 |
397 | and edi,not 4095 |
398 | mov [new_size], edi |
398 | mov [new_size], edi |
399 | 399 | ||
400 | mov edx,[current_slot] |
400 | mov edx,[current_slot] |
401 | cmp [edx+APPDATA.heap_base],0 |
401 | cmp [edx+APPDATA.heap_base],0 |
402 | jne .exit |
402 | jne .exit |
403 | 403 | ||
404 | mov esi, [edx+APPDATA.mem_size] |
404 | mov esi, [edx+APPDATA.mem_size] |
405 | add esi, 4095 |
405 | add esi, 4095 |
406 | and esi, not 4095 |
406 | and esi, not 4095 |
407 | 407 | ||
408 | cmp edi, esi |
408 | cmp edi, esi |
409 | jae .expand |
409 | jae .expand |
410 | 410 | ||
411 | shr edi, 12 |
411 | shr edi, 12 |
412 | shr esi, 12 |
412 | shr esi, 12 |
413 | @@: |
413 | @@: |
414 | mov eax, [app_page_tabs+edi*4] |
414 | mov eax, [app_page_tabs+edi*4] |
415 | test eax, 1 |
415 | test eax, 1 |
416 | jz .next |
416 | jz .next |
417 | mov dword [app_page_tabs+edi*4], 2 |
417 | mov dword [app_page_tabs+edi*4], 2 |
418 | mov ebx, edi |
418 | mov ebx, edi |
419 | shl ebx, 12 |
419 | shl ebx, 12 |
420 | invlpg [ebx] |
420 | invlpg [ebx] |
421 | call free_page |
421 | call free_page |
422 | 422 | ||
423 | .next: add edi, 1 |
423 | .next: add edi, 1 |
424 | cmp edi, esi |
424 | cmp edi, esi |
425 | jb @B |
425 | jb @B |
426 | 426 | ||
427 | .update_size: |
427 | .update_size: |
428 | mov ebx, [new_size] |
428 | mov ebx, [new_size] |
429 | call update_mem_size |
429 | call update_mem_size |
430 | 430 | ||
431 | xor eax, eax |
431 | xor eax, eax |
432 | dec [pg_data.pg_mutex] |
432 | dec [pg_data.pg_mutex] |
433 | ret |
433 | ret |
434 | .expand: |
434 | .expand: |
435 | 435 | ||
436 | push esi |
436 | push esi |
437 | push edi |
437 | push edi |
438 | 438 | ||
439 | add edi, 0x3FFFFF |
439 | add edi, 0x3FFFFF |
440 | and edi, not(0x3FFFFF) |
440 | and edi, not(0x3FFFFF) |
441 | add esi, 0x3FFFFF |
441 | add esi, 0x3FFFFF |
442 | and esi, not(0x3FFFFF) |
442 | and esi, not(0x3FFFFF) |
443 | 443 | ||
444 | cmp esi, edi |
444 | cmp esi, edi |
445 | jae .grow |
445 | jae .grow |
446 | 446 | ||
447 | xchg esi, edi |
447 | xchg esi, edi |
448 | 448 | ||
449 | @@: |
449 | @@: |
450 | call alloc_page |
450 | call alloc_page |
451 | test eax, eax |
451 | test eax, eax |
452 | jz .exit |
452 | jz .exit |
453 | 453 | ||
454 | stdcall map_page_table, edi, eax |
454 | stdcall map_page_table, edi, eax |
455 | 455 | ||
456 | push edi |
456 | push edi |
457 | shr edi, 10 |
457 | shr edi, 10 |
458 | add edi, page_tabs |
458 | add edi, page_tabs |
459 | mov ecx, 1024 |
459 | mov ecx, 1024 |
460 | xor eax, eax |
460 | xor eax, eax |
461 | cld |
461 | cld |
462 | rep stosd |
462 | rep stosd |
463 | pop edi |
463 | pop edi |
464 | 464 | ||
465 | add edi, 0x00400000 |
465 | add edi, 0x00400000 |
466 | cmp edi, esi |
466 | cmp edi, esi |
467 | jb @B |
467 | jb @B |
468 | .grow: |
468 | .grow: |
469 | pop edi |
469 | pop edi |
470 | pop esi |
470 | pop esi |
471 | @@: |
471 | @@: |
472 | call alloc_page |
472 | call alloc_page |
473 | test eax, eax |
473 | test eax, eax |
474 | jz .exit |
474 | jz .exit |
475 | stdcall map_page,esi,eax,dword PG_UW |
475 | stdcall map_page,esi,eax,dword PG_UW |
476 | 476 | ||
477 | push edi |
477 | push edi |
478 | mov edi, esi |
478 | mov edi, esi |
479 | xor eax, eax |
479 | xor eax, eax |
480 | mov ecx, 1024 |
480 | mov ecx, 1024 |
481 | cld |
481 | cld |
482 | rep stosd |
482 | rep stosd |
483 | pop edi |
483 | pop edi |
484 | 484 | ||
485 | add esi, 0x1000 |
485 | add esi, 0x1000 |
486 | cmp esi, edi |
486 | cmp esi, edi |
487 | jb @B |
487 | jb @B |
488 | 488 | ||
489 | jmp .update_size |
489 | jmp .update_size |
490 | .exit: |
490 | .exit: |
491 | xor eax, eax |
491 | xor eax, eax |
492 | inc eax |
492 | inc eax |
493 | dec [pg_data.pg_mutex] |
493 | dec [pg_data.pg_mutex] |
494 | ret |
494 | ret |
495 | endp |
495 | endp |
496 | 496 | ||
497 | update_mem_size: |
497 | update_mem_size: |
498 | ; in: edx = slot base |
498 | ; in: edx = slot base |
499 | ; ebx = new memory size |
499 | ; ebx = new memory size |
500 | ; destroys eax,ecx,edx |
500 | ; destroys eax,ecx,edx |
501 | 501 | ||
502 | mov [APPDATA.mem_size+edx],ebx |
502 | mov [APPDATA.mem_size+edx],ebx |
503 | ;search threads and update |
503 | ;search threads and update |
504 | ;application memory size infomation |
504 | ;application memory size infomation |
505 | mov ecx,[APPDATA.dir_table+edx] |
505 | mov ecx,[APPDATA.dir_table+edx] |
506 | mov eax,2 |
506 | mov eax,2 |
507 | 507 | ||
508 | .search_threads: |
508 | .search_threads: |
509 | ;eax = current slot |
509 | ;eax = current slot |
510 | ;ebx = new memory size |
510 | ;ebx = new memory size |
511 | ;ecx = page directory |
511 | ;ecx = page directory |
512 | cmp eax,[TASK_COUNT] |
512 | cmp eax,[TASK_COUNT] |
513 | jg .search_threads_end |
513 | jg .search_threads_end |
514 | mov edx,eax |
514 | mov edx,eax |
515 | shl edx,5 |
515 | shl edx,5 |
516 | cmp word [CURRENT_TASK+edx+TASKDATA.state],9 ;if slot empty? |
516 | cmp word [CURRENT_TASK+edx+TASKDATA.state],9 ;if slot empty? |
517 | jz .search_threads_next |
517 | jz .search_threads_next |
518 | shl edx,3 |
518 | shl edx,3 |
519 | cmp [SLOT_BASE+edx+APPDATA.dir_table],ecx ;if it is our thread? |
519 | cmp [SLOT_BASE+edx+APPDATA.dir_table],ecx ;if it is our thread? |
520 | jnz .search_threads_next |
520 | jnz .search_threads_next |
521 | mov [SLOT_BASE+edx+APPDATA.mem_size],ebx ;update memory size |
521 | mov [SLOT_BASE+edx+APPDATA.mem_size],ebx ;update memory size |
522 | .search_threads_next: |
522 | .search_threads_next: |
523 | inc eax |
523 | inc eax |
524 | jmp .search_threads |
524 | jmp .search_threads |
525 | .search_threads_end: |
525 | .search_threads_end: |
526 | ret |
526 | ret |
527 | 527 | ||
528 | ; param |
528 | ; param |
529 | ; eax= linear address |
529 | ; eax= linear address |
530 | ; |
530 | ; |
531 | ; retval |
531 | ; retval |
532 | ; eax= phisical page address |
532 | ; eax= phisical page address |
533 | 533 | ||
534 | align 4 |
534 | align 4 |
535 | get_pg_addr: |
535 | get_pg_addr: |
536 | shr eax, 12 |
536 | shr eax, 12 |
537 | mov eax, [page_tabs+eax*4] |
537 | mov eax, [page_tabs+eax*4] |
538 | and eax, 0xFFFFF000 |
538 | and eax, 0xFFFFF000 |
539 | ret |
539 | ret |
540 | 540 | ||
541 | 541 | ||
542 | align 4 |
542 | align 4 |
543 | proc page_fault_handler |
543 | proc page_fault_handler |
544 | 544 | ||
545 | test byte [esp+12+2], 2 |
545 | test byte [esp+12+2], 2 |
546 | jnz v86_page_fault |
546 | jnz v86_page_fault |
547 | 547 | ||
548 | .err_code equ ebp+32 |
548 | .err_code equ ebp+32 |
549 | .err_addr equ ebp-4 |
549 | .err_addr equ ebp-4 |
550 | 550 | ||
551 | pushad |
551 | pushad |
552 | mov ebp, esp |
552 | mov ebp, esp |
553 | mov eax, cr2 |
553 | mov eax, cr2 |
554 | push eax |
554 | push eax |
555 | 555 | ||
556 | mov ax, app_data |
556 | mov ax, app_data |
557 | mov ds, ax |
557 | mov ds, ax |
558 | mov es, ax |
558 | mov es, ax |
559 | 559 | ||
560 | inc [pg_data.pages_faults] |
560 | inc [pg_data.pages_faults] |
561 | 561 | ||
562 | ; push eax |
562 | ; push eax |
563 | ; push edx |
563 | ; push edx |
564 | ; mov edx, 0x400 ;bochs |
564 | ; mov edx, 0x400 ;bochs |
565 | ; mov al,0xff ;bochs |
565 | ; mov al,0xff ;bochs |
566 | ; out dx, al ;bochs |
566 | ; out dx, al ;bochs |
567 | ; pop edx |
567 | ; pop edx |
568 | ; pop eax |
568 | ; pop eax |
569 | 569 | ||
570 | mov ebx, [.err_addr] |
570 | mov ebx, [.err_addr] |
571 | mov eax, [.err_code] |
571 | mov eax, [.err_code] |
572 | 572 | ||
573 | cmp ebx, OS_BASE |
573 | cmp ebx, OS_BASE |
574 | jb .user_space ;ñòðà Ãèöà â ïà ìÿòè ïðèëîæåÃèÿ ; |
574 | jb .user_space ;ñòðà Ãèöà â ïà ìÿòè ïðèëîæåÃèÿ ; |
575 | 575 | ||
576 | cmp ebx, page_tabs |
576 | cmp ebx, page_tabs |
577 | jb .kernel_space ;ñòðà Ãèöà â ïà ìÿòè ÿäðà |
577 | jb .kernel_space ;ñòðà Ãèöà â ïà ìÿòè ÿäðà |
578 | 578 | ||
579 | cmp ebx, kernel_tabs |
579 | cmp ebx, kernel_tabs |
580 | jb .alloc;.app_tabs ;òà áëèöû ñòðà Ãèö ïðèëîæåÃèÿ ; |
580 | jb .alloc;.app_tabs ;òà áëèöû ñòðà Ãèö ïðèëîæåÃèÿ ; |
581 | ;ïðîñòî ñîçäà äèì îäÃó |
581 | ;ïðîñòî ñîçäà äèì îäÃó |
582 | 582 | ||
583 | cmp ebx, LFB_BASE |
583 | cmp ebx, LFB_BASE |
584 | jb .core_tabs ;òà áëèöû ñòðà Ãèö ÿäðà |
584 | jb .core_tabs ;òà áëèöû ñòðà Ãèö ÿäðà |
585 | ;Îøèáêà |
585 | ;Îøèáêà |
586 | .lfb: |
586 | .lfb: |
587 | ;îáëà ñòü LFB |
587 | ;îáëà ñòü LFB |
588 | ;Îøèáêà |
588 | ;Îøèáêà |
589 | jmp .fail |
589 | jmp .fail |
590 | 590 | ||
591 | align 4 |
591 | align 4 |
592 | .user_space: |
592 | .user_space: |
593 | test eax, PG_MAP |
593 | test eax, PG_MAP |
594 | jnz .err_access ;Ñòðà Ãèöà ïðèñóòñòâóåò |
594 | jnz .err_access ;Ñòðà Ãèöà ïðèñóòñòâóåò |
595 | ;Îøèáêà äîñòóïà ? |
595 | ;Îøèáêà äîñòóïà ? |
596 | 596 | ||
597 | shr ebx, 12 |
597 | shr ebx, 12 |
598 | mov ecx, ebx |
598 | mov ecx, ebx |
599 | shr ecx, 10 |
599 | shr ecx, 10 |
600 | mov edx, [master_tab+ecx*4] |
600 | mov edx, [master_tab+ecx*4] |
601 | test edx, PG_MAP |
601 | test edx, PG_MAP |
602 | jz .fail ;òà áëèöà ñòðà Ãèö ÃÃ¥ ñîçäà Ãà |
602 | jz .fail ;òà áëèöà ñòðà Ãèö ÃÃ¥ ñîçäà Ãà |
603 | ;ÃåâåðÃûé à äðåñ â ïðîãðà ììå |
603 | ;ÃåâåðÃûé à äðåñ â ïðîãðà ììå |
604 | 604 | ||
605 | mov eax, [page_tabs+ebx*4] |
605 | mov eax, [page_tabs+ebx*4] |
606 | test eax, 2 |
606 | test eax, 2 |
607 | jz .fail ;à äðåñ ÃÃ¥ çà ðåçåðâèðîâà à äëÿ ; |
607 | jz .fail ;à äðåñ ÃÃ¥ çà ðåçåðâèðîâà à äëÿ ; |
608 | ;èñïîëüçîâà Ãèÿ. Îøèáêà |
608 | ;èñïîëüçîâà Ãèÿ. Îøèáêà |
609 | .alloc: |
609 | .alloc: |
610 | call alloc_page |
610 | call alloc_page |
611 | test eax, eax |
611 | test eax, eax |
612 | jz .fail |
612 | jz .fail |
613 | 613 | ||
614 | stdcall map_page,[ebp-4],eax,dword PG_UW |
614 | stdcall map_page,[ebp-4],eax,dword PG_UW |
615 | 615 | ||
616 | mov edi, [ebp-4] |
616 | mov edi, [ebp-4] |
617 | and edi, 0xFFFFF000 |
617 | and edi, 0xFFFFF000 |
618 | mov ecx, 1024 |
618 | mov ecx, 1024 |
619 | xor eax, eax |
619 | xor eax, eax |
620 | cld |
620 | cld |
621 | rep stosd |
621 | rep stosd |
622 | .exit: |
622 | .exit: |
623 | mov esp, ebp |
623 | mov esp, ebp |
624 | popad |
624 | popad |
625 | add esp, 4 |
625 | add esp, 4 |
626 | iretd |
626 | iretd |
627 | 627 | ||
628 | .err_access: |
628 | .err_access: |
629 | ;Ãèêîãäà ÃÃ¥ ïðîèñõîäèò |
629 | ;Ãèêîãäà ÃÃ¥ ïðîèñõîäèò |
630 | jmp .fail |
630 | jmp .fail |
631 | 631 | ||
632 | .kernel_space: |
632 | .kernel_space: |
633 | test eax, PG_MAP |
633 | test eax, PG_MAP |
634 | jz .fail ;ñòðà Ãèöà ÃÃ¥ ïðèñóòñòâóåò |
634 | jz .fail ;ñòðà Ãèöà ÃÃ¥ ïðèñóòñòâóåò |
635 | 635 | ||
636 | test eax, 4 ;U/S |
636 | test eax, 4 ;U/S |
637 | jnz .fail ;ïðèëîæåÃèå îáðà òèëîñü ê ïà ìÿòè |
637 | jnz .fail ;ïðèëîæåÃèå îáðà òèëîñü ê ïà ìÿòè |
638 | ;ÿäðà |
638 | ;ÿäðà |
639 | test eax, 8 |
639 | test eax, 8 |
640 | jnz .fail ;óñòà Ãîâëåà çà ðåçåðâèðîâà ÃÃûé áèò |
640 | jnz .fail ;óñòà Ãîâëåà çà ðåçåðâèðîâà ÃÃûé áèò |
641 | ;â òà áëèöà õ ñòðà Ãèö. äîáà âëåÃî â P4/Xeon |
641 | ;â òà áëèöà õ ñòðà Ãèö. äîáà âëåÃî â P4/Xeon |
642 | 642 | ||
643 | ;ïîïûòêà çà ïèñè â çà ùèù¸ÃÃóþ ñòðà Ãèöó ÿäðà |
643 | ;ïîïûòêà çà ïèñè â çà ùèù¸ÃÃóþ ñòðà Ãèöó ÿäðà |
644 | 644 | ||
645 | cmp ebx, tss._io_map_0 |
645 | cmp ebx, tss._io_map_0 |
646 | jb .fail |
646 | jb .fail |
647 | 647 | ||
648 | cmp ebx, tss._io_map_0+8192 |
648 | cmp ebx, tss._io_map_0+8192 |
649 | jae .fail |
649 | jae .fail |
650 | 650 | ||
651 | ; io permission map |
651 | ; io permission map |
652 | ; copy-on-write protection |
652 | ; copy-on-write protection |
653 | 653 | ||
654 | call alloc_page |
654 | call alloc_page |
655 | test eax, eax |
655 | test eax, eax |
656 | jz .fail |
656 | jz .fail |
657 | 657 | ||
658 | push eax |
658 | push eax |
659 | stdcall map_page,[ebp-4],eax,dword PG_SW |
659 | stdcall map_page,[ebp-4],eax,dword PG_SW |
660 | pop eax |
660 | pop eax |
661 | mov edi, [.err_addr] |
661 | mov edi, [.err_addr] |
662 | and edi, -4096 |
662 | and edi, -4096 |
663 | lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0 |
663 | lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0 |
664 | 664 | ||
665 | mov ebx, esi |
665 | mov ebx, esi |
666 | shr ebx, 12 |
666 | shr ebx, 12 |
667 | mov edx, [current_slot] |
667 | mov edx, [current_slot] |
668 | or eax, PG_SW |
668 | or eax, PG_SW |
669 | mov [edx+APPDATA.io_map+ebx*4], eax |
669 | mov [edx+APPDATA.io_map+ebx*4], eax |
670 | 670 | ||
671 | add esi, [default_io_map] |
671 | add esi, [default_io_map] |
672 | mov ecx, 4096/4 |
672 | mov ecx, 4096/4 |
673 | cld |
673 | cld |
674 | rep movsd |
674 | rep movsd |
675 | jmp .exit |
675 | jmp .exit |
676 | 676 | ||
677 | 677 | ||
678 | ;ÃÃ¥ îáðà áà òûâà åì. Îøèáêà |
678 | ;ÃÃ¥ îáðà áà òûâà åì. Îøèáêà |
679 | 679 | ||
680 | .core_tabs: |
680 | .core_tabs: |
681 | .fail: |
681 | .fail: |
682 | mov esp, ebp |
682 | mov esp, ebp |
683 | popad |
683 | popad |
684 | add esp, 4 |
684 | add esp, 4 |
685 | 685 | ||
686 | ; iretd |
686 | ; iretd |
687 | 687 | ||
688 | save_ring3_context ;debugger support |
688 | save_ring3_context ;debugger support |
689 | 689 | ||
690 | mov bl, 14 |
690 | mov bl, 14 |
691 | jmp exc_c |
691 | jmp exc_c |
692 | iretd |
692 | iretd |
693 | endp |
693 | endp |
694 | 694 | ||
695 | align 4 |
695 | align 4 |
696 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
696 | proc map_mem stdcall, lin_addr:dword,pdir:dword,\ |
697 | ofs:dword,buf_size:dword |
697 | ofs:dword,buf_size:dword |
698 | mov eax, [buf_size] |
698 | mov eax, [buf_size] |
699 | test eax, eax |
699 | test eax, eax |
700 | jz .exit |
700 | jz .exit |
701 | 701 | ||
702 | mov eax, [pdir] |
702 | mov eax, [pdir] |
703 | and eax, 0xFFFFF000 |
703 | and eax, 0xFFFFF000 |
704 | 704 | ||
705 | stdcall map_page,[ipc_pdir],eax,PG_UW |
705 | stdcall map_page,[ipc_pdir],eax,PG_UW |
706 | mov ebx, [ofs] |
706 | mov ebx, [ofs] |
707 | shr ebx, 22 |
707 | shr ebx, 22 |
708 | mov esi, [ipc_pdir] |
708 | mov esi, [ipc_pdir] |
709 | mov edi, [ipc_ptab] |
709 | mov edi, [ipc_ptab] |
710 | mov eax, [esi+ebx*4] |
710 | mov eax, [esi+ebx*4] |
711 | and eax, 0xFFFFF000 |
711 | and eax, 0xFFFFF000 |
712 | jz .exit |
712 | jz .exit |
713 | stdcall map_page,edi,eax,PG_UW |
713 | stdcall map_page,edi,eax,PG_UW |
714 | ; inc ebx |
714 | ; inc ebx |
715 | ; add edi, 0x1000 |
715 | ; add edi, 0x1000 |
716 | ; mov eax, [esi+ebx*4] |
716 | ; mov eax, [esi+ebx*4] |
717 | ; test eax, eax |
717 | ; test eax, eax |
718 | ; jz @f |
718 | ; jz @f |
719 | ; and eax, 0xFFFFF000 |
719 | ; and eax, 0xFFFFF000 |
720 | ; stdcall map_page, edi, eax |
720 | ; stdcall map_page, edi, eax |
721 | 721 | ||
722 | @@: mov edi, [lin_addr] |
722 | @@: mov edi, [lin_addr] |
723 | and edi, 0xFFFFF000 |
723 | and edi, 0xFFFFF000 |
724 | mov ecx, [buf_size] |
724 | mov ecx, [buf_size] |
725 | add ecx, 4095 |
725 | add ecx, 4095 |
726 | shr ecx, 12 |
726 | shr ecx, 12 |
727 | inc ecx |
727 | inc ecx |
728 | 728 | ||
729 | mov edx, [ofs] |
729 | mov edx, [ofs] |
730 | shr edx, 12 |
730 | shr edx, 12 |
731 | and edx, 0x3FF |
731 | and edx, 0x3FF |
732 | mov esi, [ipc_ptab] |
732 | mov esi, [ipc_ptab] |
733 | 733 | ||
734 | .map: mov eax, [esi+edx*4] |
734 | .map: mov eax, [esi+edx*4] |
735 | and eax, 0xFFFFF000 |
735 | and eax, 0xFFFFF000 |
736 | jz .exit |
736 | jz .exit |
737 | stdcall map_page,edi,eax,PG_UW |
737 | stdcall map_page,edi,eax,PG_UW |
738 | dec ecx |
738 | dec ecx |
739 | jz .exit |
739 | jz .exit |
740 | add edi, 0x1000 |
740 | add edi, 0x1000 |
741 | inc edx |
741 | inc edx |
742 | cmp edx, 0x400 |
742 | cmp edx, 0x400 |
743 | jnz .map |
743 | jnz .map |
744 | inc ebx |
744 | inc ebx |
745 | mov eax, [ipc_pdir] |
745 | mov eax, [ipc_pdir] |
746 | mov eax, [eax+ebx*4] |
746 | mov eax, [eax+ebx*4] |
747 | and eax, 0xFFFFF000 |
747 | and eax, 0xFFFFF000 |
748 | jz .exit |
748 | jz .exit |
749 | stdcall map_page,esi,eax,PG_UW |
749 | stdcall map_page,esi,eax,PG_UW |
750 | xor edx, edx |
750 | xor edx, edx |
751 | jmp .map |
751 | jmp .map |
752 | 752 | ||
753 | .exit: |
753 | .exit: |
754 | ret |
754 | ret |
755 | endp |
755 | endp |
756 | 756 | ||
757 | align 4 |
757 | align 4 |
758 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
758 | proc map_memEx stdcall, lin_addr:dword,pdir:dword,\ |
759 | ofs:dword,buf_size:dword |
759 | ofs:dword,buf_size:dword |
760 | mov eax, [buf_size] |
760 | mov eax, [buf_size] |
761 | test eax, eax |
761 | test eax, eax |
762 | jz .exit |
762 | jz .exit |
763 | 763 | ||
764 | mov eax, [pdir] |
764 | mov eax, [pdir] |
765 | and eax, 0xFFFFF000 |
765 | and eax, 0xFFFFF000 |
766 | 766 | ||
767 | stdcall map_page,[proc_mem_pdir],eax,dword PG_UW |
767 | stdcall map_page,[proc_mem_pdir],eax,dword PG_UW |
768 | mov ebx, [ofs] |
768 | mov ebx, [ofs] |
769 | shr ebx, 22 |
769 | shr ebx, 22 |
770 | mov esi, [proc_mem_pdir] |
770 | mov esi, [proc_mem_pdir] |
771 | mov edi, [proc_mem_tab] |
771 | mov edi, [proc_mem_tab] |
772 | mov eax, [esi+ebx*4] |
772 | mov eax, [esi+ebx*4] |
773 | and eax, 0xFFFFF000 |
773 | and eax, 0xFFFFF000 |
774 | test eax, eax |
774 | test eax, eax |
775 | jz .exit |
775 | jz .exit |
776 | stdcall map_page,edi,eax,dword PG_UW |
776 | stdcall map_page,edi,eax,dword PG_UW |
777 | 777 | ||
778 | @@: mov edi, [lin_addr] |
778 | @@: mov edi, [lin_addr] |
779 | and edi, 0xFFFFF000 |
779 | and edi, 0xFFFFF000 |
780 | mov ecx, [buf_size] |
780 | mov ecx, [buf_size] |
781 | add ecx, 4095 |
781 | add ecx, 4095 |
782 | shr ecx, 12 |
782 | shr ecx, 12 |
783 | inc ecx |
783 | inc ecx |
784 | 784 | ||
785 | mov edx, [ofs] |
785 | mov edx, [ofs] |
786 | shr edx, 12 |
786 | shr edx, 12 |
787 | and edx, 0x3FF |
787 | and edx, 0x3FF |
788 | mov esi, [proc_mem_tab] |
788 | mov esi, [proc_mem_tab] |
789 | 789 | ||
790 | .map: mov eax, [esi+edx*4] |
790 | .map: mov eax, [esi+edx*4] |
791 | ; and eax, 0xFFFFF000 |
791 | ; and eax, 0xFFFFF000 |
792 | ; test eax, eax |
792 | ; test eax, eax |
793 | ; jz .exit |
793 | ; jz .exit |
794 | stdcall map_page,edi,eax,dword PG_UW |
794 | stdcall map_page,edi,eax,dword PG_UW |
795 | add edi, 0x1000 |
795 | add edi, 0x1000 |
796 | inc edx |
796 | inc edx |
797 | dec ecx |
797 | dec ecx |
798 | jnz .map |
798 | jnz .map |
799 | .exit: |
799 | .exit: |
800 | ret |
800 | ret |
801 | endp |
801 | endp |
802 | 802 | ||
803 | 803 | ||
804 | 804 | ||
805 | 805 | ||
806 | sys_IPC: |
806 | sys_IPC: |
807 | ;input: |
807 | ;input: |
808 | ; eax=1 - set ipc buffer area |
808 | ; eax=1 - set ipc buffer area |
809 | ; ebx=address of buffer |
809 | ; ebx=address of buffer |
810 | ; ecx=size of buffer |
810 | ; ecx=size of buffer |
811 | ; eax=2 - send message |
811 | ; eax=2 - send message |
812 | ; ebx=PID |
812 | ; ebx=PID |
813 | ; ecx=address of message |
813 | ; ecx=address of message |
814 | ; edx=size of message |
814 | ; edx=size of message |
815 | 815 | ||
816 | cmp eax,1 |
816 | cmp eax,1 |
817 | jne @f |
817 | jne @f |
818 | call set_ipc_buff |
818 | call set_ipc_buff |
819 | mov [esp+36], eax |
819 | mov [esp+36], eax |
820 | ret |
820 | ret |
821 | @@: |
821 | @@: |
822 | cmp eax, 2 |
822 | cmp eax, 2 |
823 | jne @f |
823 | jne @f |
824 | stdcall sys_ipc_send, ebx, ecx, edx |
824 | stdcall sys_ipc_send, ebx, ecx, edx |
825 | mov [esp+36], eax |
825 | mov [esp+36], eax |
826 | ret |
826 | ret |
827 | @@: |
827 | @@: |
828 | xor eax, eax |
828 | xor eax, eax |
829 | not eax |
829 | not eax |
830 | mov [esp+36], eax |
830 | mov [esp+36], eax |
831 | ret |
831 | ret |
832 | 832 | ||
833 | align 4 |
833 | align 4 |
834 | proc set_ipc_buff |
834 | proc set_ipc_buff |
835 | 835 | ||
836 | mov eax,[current_slot] |
836 | mov eax,[current_slot] |
837 | pushf |
837 | pushf |
838 | cli |
838 | cli |
839 | mov [eax+APPDATA.ipc_start],ebx ;set fields in extended information area |
839 | mov [eax+APPDATA.ipc_start],ebx ;set fields in extended information area |
840 | mov [eax+APPDATA.ipc_size],ecx |
840 | mov [eax+APPDATA.ipc_size],ecx |
841 | 841 | ||
842 | add ecx, ebx |
842 | add ecx, ebx |
843 | add ecx, 4095 |
843 | add ecx, 4095 |
844 | and ecx, not 4095 |
844 | and ecx, not 4095 |
845 | 845 | ||
846 | .touch: mov eax, [ebx] |
846 | .touch: mov eax, [ebx] |
847 | add ebx, 0x1000 |
847 | add ebx, 0x1000 |
848 | cmp ebx, ecx |
848 | cmp ebx, ecx |
849 | jb .touch |
849 | jb .touch |
850 | 850 | ||
851 | popf |
851 | popf |
852 | xor eax, eax |
852 | xor eax, eax |
853 | ret |
853 | ret |
854 | endp |
854 | endp |
855 | 855 | ||
856 | proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword |
856 | proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword |
857 | locals |
857 | locals |
858 | dst_slot dd ? |
858 | dst_slot dd ? |
859 | dst_offset dd ? |
859 | dst_offset dd ? |
860 | buf_size dd ? |
860 | buf_size dd ? |
861 | used_buf dd ? |
861 | used_buf dd ? |
862 | endl |
862 | endl |
863 | 863 | ||
864 | pushf |
864 | pushf |
865 | cli |
865 | cli |
866 | 866 | ||
867 | mov eax, [PID] |
867 | mov eax, [PID] |
868 | call pid_to_slot |
868 | call pid_to_slot |
869 | test eax,eax |
869 | test eax,eax |
870 | jz .no_pid |
870 | jz .no_pid |
871 | 871 | ||
872 | mov [dst_slot], eax |
872 | mov [dst_slot], eax |
873 | shl eax,8 |
873 | shl eax,8 |
874 | mov edi,[eax+SLOT_BASE+0xa0] ;is ipc area defined? |
874 | mov edi,[eax+SLOT_BASE+0xa0] ;is ipc area defined? |
875 | test edi,edi |
875 | test edi,edi |
876 | jz .no_ipc_area |
876 | jz .no_ipc_area |
877 | 877 | ||
878 | mov ebx, edi |
878 | mov ebx, edi |
879 | and ebx, 0xFFF |
879 | and ebx, 0xFFF |
880 | mov [dst_offset], ebx |
880 | mov [dst_offset], ebx |
881 | 881 | ||
882 | mov esi, [eax+SLOT_BASE+0xa4] |
882 | mov esi, [eax+SLOT_BASE+0xa4] |
883 | mov [buf_size], esi |
883 | mov [buf_size], esi |
884 | 884 | ||
885 | mov ecx, [ipc_tmp] |
885 | mov ecx, [ipc_tmp] |
886 | cmp esi, 0x40000-0x1000 ; size of [ipc_tmp] minus one page |
886 | cmp esi, 0x40000-0x1000 ; size of [ipc_tmp] minus one page |
887 | jbe @f |
887 | jbe @f |
888 | push eax esi edi |
888 | push eax esi edi |
889 | add esi,0x1000 |
889 | add esi,0x1000 |
890 | stdcall alloc_kernel_space,esi |
890 | stdcall alloc_kernel_space,esi |
891 | mov ecx, eax |
891 | mov ecx, eax |
892 | pop edi esi eax |
892 | pop edi esi eax |
893 | @@: |
893 | @@: |
894 | mov [used_buf], ecx |
894 | mov [used_buf], ecx |
895 | stdcall map_mem, ecx, [SLOT_BASE+eax+0xB8],\ |
895 | stdcall map_mem, ecx, [SLOT_BASE+eax+0xB8],\ |
896 | edi, esi |
896 | edi, esi |
897 | 897 | ||
898 | mov edi, [dst_offset] |
898 | mov edi, [dst_offset] |
899 | add edi, [used_buf] |
899 | add edi, [used_buf] |
900 | cmp dword [edi], 0 |
900 | cmp dword [edi], 0 |
901 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
901 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
902 | 902 | ||
903 | mov edx, dword [edi+4] |
903 | mov edx, dword [edi+4] |
904 | lea ebx, [edx+8] |
904 | lea ebx, [edx+8] |
905 | add ebx, [msg_size] |
905 | add ebx, [msg_size] |
906 | cmp ebx, [buf_size] |
906 | cmp ebx, [buf_size] |
907 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
907 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
908 | 908 | ||
909 | mov dword [edi+4], ebx |
909 | mov dword [edi+4], ebx |
910 | mov eax,[TASK_BASE] |
910 | mov eax,[TASK_BASE] |
911 | mov eax, [eax+0x04] ;eax - our PID |
911 | mov eax, [eax+0x04] ;eax - our PID |
912 | add edi, edx |
912 | add edi, edx |
913 | mov [edi], eax |
913 | mov [edi], eax |
914 | mov ecx, [msg_size] |
914 | mov ecx, [msg_size] |
915 | 915 | ||
916 | mov [edi+4], ecx |
916 | mov [edi+4], ecx |
917 | add edi, 8 |
917 | add edi, 8 |
918 | mov esi, [msg_addr] |
918 | mov esi, [msg_addr] |
919 | ; add esi, new_app_base |
919 | ; add esi, new_app_base |
920 | cld |
920 | cld |
921 | rep movsb |
921 | rep movsb |
922 | 922 | ||
923 | mov ebx, [ipc_tmp] |
923 | mov ebx, [ipc_tmp] |
924 | mov edx, ebx |
924 | mov edx, ebx |
925 | shr ebx, 12 |
925 | shr ebx, 12 |
926 | xor eax, eax |
926 | xor eax, eax |
927 | mov [page_tabs+ebx*4], eax |
927 | mov [page_tabs+ebx*4], eax |
928 | invlpg [edx] |
928 | invlpg [edx] |
929 | 929 | ||
930 | mov ebx, [ipc_pdir] |
930 | mov ebx, [ipc_pdir] |
931 | mov edx, ebx |
931 | mov edx, ebx |
932 | shr ebx, 12 |
932 | shr ebx, 12 |
933 | xor eax, eax |
933 | xor eax, eax |
934 | mov [page_tabs+ebx*4], eax |
934 | mov [page_tabs+ebx*4], eax |
935 | invlpg [edx] |
935 | invlpg [edx] |
936 | 936 | ||
937 | mov ebx, [ipc_ptab] |
937 | mov ebx, [ipc_ptab] |
938 | mov edx, ebx |
938 | mov edx, ebx |
939 | shr ebx, 12 |
939 | shr ebx, 12 |
940 | xor eax, eax |
940 | xor eax, eax |
941 | mov [page_tabs+ebx*4], eax |
941 | mov [page_tabs+ebx*4], eax |
942 | invlpg [edx] |
942 | invlpg [edx] |
943 | 943 | ||
944 | mov eax, [dst_slot] |
944 | mov eax, [dst_slot] |
945 | shl eax, 8 |
945 | shl eax, 8 |
946 | or [eax+SLOT_BASE+0xA8],dword 0x40 |
946 | or [eax+SLOT_BASE+0xA8],dword 0x40 |
947 | cmp dword [check_idle_semaphore],20 |
947 | cmp dword [check_idle_semaphore],20 |
948 | jge .ipc_no_cis |
948 | jge .ipc_no_cis |
949 | 949 | ||
950 | mov dword [check_idle_semaphore],5 |
950 | mov dword [check_idle_semaphore],5 |
951 | .ipc_no_cis: |
951 | .ipc_no_cis: |
952 | push 0 |
952 | push 0 |
953 | jmp .ret |
953 | jmp .ret |
954 | .no_pid: |
954 | .no_pid: |
955 | popf |
955 | popf |
956 | mov eax, 4 |
956 | mov eax, 4 |
957 | ret |
957 | ret |
958 | .no_ipc_area: |
958 | .no_ipc_area: |
959 | popf |
959 | popf |
960 | xor eax, eax |
960 | xor eax, eax |
961 | inc eax |
961 | inc eax |
962 | ret |
962 | ret |
963 | .ipc_blocked: |
963 | .ipc_blocked: |
964 | push 2 |
964 | push 2 |
965 | jmp .ret |
965 | jmp .ret |
966 | .buffer_overflow: |
966 | .buffer_overflow: |
967 | push 3 |
967 | push 3 |
968 | .ret: |
968 | .ret: |
969 | mov eax, [used_buf] |
969 | mov eax, [used_buf] |
970 | cmp eax, [ipc_tmp] |
970 | cmp eax, [ipc_tmp] |
971 | jz @f |
971 | jz @f |
972 | stdcall free_kernel_space,eax |
972 | stdcall free_kernel_space,eax |
973 | @@: |
973 | @@: |
974 | pop eax |
974 | pop eax |
975 | popf |
975 | popf |
976 | ret |
976 | ret |
977 | endp |
977 | endp |
978 | 978 | ||
979 | align 4 |
979 | align 4 |
980 | sysfn_meminfo: |
980 | sysfn_meminfo: |
981 | 981 | ||
982 | ; add ebx, new_app_base |
982 | ; add ebx, new_app_base |
983 | cmp ebx, OS_BASE |
983 | cmp ebx, OS_BASE |
984 | jae .fail |
984 | jae .fail |
985 | 985 | ||
986 | mov eax, [pg_data.pages_count] |
986 | mov eax, [pg_data.pages_count] |
987 | mov [ebx], eax |
987 | mov [ebx], eax |
988 | shl eax, 12 |
988 | shl eax, 12 |
989 | mov [esp+36], eax |
989 | mov [esp+36], eax |
990 | mov ecx, [pg_data.pages_free] |
990 | mov ecx, [pg_data.pages_free] |
991 | mov [ebx+4], ecx |
991 | mov [ebx+4], ecx |
992 | mov edx, [pg_data.pages_faults] |
992 | mov edx, [pg_data.pages_faults] |
993 | mov [ebx+8], edx |
993 | mov [ebx+8], edx |
994 | mov esi, [heap_size] |
994 | mov esi, [heap_size] |
995 | mov [ebx+12], esi |
995 | mov [ebx+12], esi |
996 | mov edi, [heap_free] |
996 | mov edi, [heap_free] |
997 | mov [ebx+16], edi |
997 | mov [ebx+16], edi |
998 | mov eax, [heap_blocks] |
998 | mov eax, [heap_blocks] |
999 | mov [ebx+20], eax |
999 | mov [ebx+20], eax |
1000 | mov ecx, [free_blocks] |
1000 | mov ecx, [free_blocks] |
1001 | mov [ebx+24], ecx |
1001 | mov [ebx+24], ecx |
1002 | ret |
1002 | ret |
1003 | .fail: |
1003 | .fail: |
1004 | mov dword [esp+36], -1 |
1004 | mov dword [esp+36], -1 |
1005 | ret |
1005 | ret |
1006 | 1006 | ||
1007 | align 4 |
1007 | align 4 |
1008 | new_services: |
1008 | new_services: |
1009 | 1009 | ||
1010 | cmp eax,4 |
1010 | cmp eax,4 |
1011 | jle sys_sheduler |
1011 | jle sys_sheduler |
1012 | 1012 | ||
1013 | cmp eax, 11 |
1013 | cmp eax, 11 |
1014 | jb .fail |
1014 | jb .fail |
1015 | ja @f |
1015 | ja @f |
1016 | 1016 | ||
1017 | call init_heap |
1017 | call init_heap |
1018 | mov [esp+36], eax |
1018 | mov [esp+36], eax |
1019 | ret |
1019 | ret |
1020 | @@: |
1020 | @@: |
1021 | cmp eax, 12 |
1021 | cmp eax, 12 |
1022 | ja @f |
1022 | ja @f |
1023 | 1023 | ||
1024 | stdcall user_alloc, ebx |
1024 | stdcall user_alloc, ebx |
1025 | mov [esp+36], eax |
1025 | mov [esp+36], eax |
1026 | ret |
1026 | ret |
1027 | @@: |
1027 | @@: |
1028 | cmp eax, 13 |
1028 | cmp eax, 13 |
1029 | ja @f |
1029 | ja @f |
1030 | stdcall user_free, ebx |
1030 | stdcall user_free, ebx |
1031 | mov [esp+36], eax |
1031 | mov [esp+36], eax |
1032 | ret |
1032 | ret |
1033 | @@: |
1033 | @@: |
1034 | cmp eax, 14 |
1034 | cmp eax, 14 |
1035 | ja @f |
1035 | ja @f |
1036 | cmp ebx, OS_BASE |
1036 | cmp ebx, OS_BASE |
1037 | jae .fail |
1037 | jae .fail |
1038 | stdcall get_event_ex, ebx, ecx |
1038 | stdcall get_event_ex, ebx, ecx |
1039 | mov [esp+36], eax |
1039 | mov [esp+36], eax |
1040 | ret |
1040 | ret |
1041 | @@: |
1041 | @@: |
1042 | cmp eax, 15 |
1042 | cmp eax, 15 |
1043 | ja @f |
1043 | ja @f |
1044 | mov ecx, [current_slot] |
1044 | mov ecx, [current_slot] |
1045 | mov eax, [ecx+APPDATA.fpu_handler] |
1045 | mov eax, [ecx+APPDATA.fpu_handler] |
1046 | mov [ecx+APPDATA.fpu_handler], ebx |
1046 | mov [ecx+APPDATA.fpu_handler], ebx |
1047 | mov [esp+36], eax |
1047 | mov [esp+36], eax |
1048 | ret |
1048 | ret |
1049 | @@: |
1049 | @@: |
1050 | cmp eax, 16 |
1050 | cmp eax, 16 |
1051 | ja @f |
1051 | ja @f |
1052 | 1052 | ||
1053 | test ebx, ebx |
1053 | test ebx, ebx |
1054 | jz .fail |
1054 | jz .fail |
1055 | cmp ebx, OS_BASE |
1055 | cmp ebx, OS_BASE |
1056 | jae .fail |
1056 | jae .fail |
1057 | stdcall get_service, ebx |
1057 | stdcall get_service, ebx |
1058 | mov [esp+36], eax |
1058 | mov [esp+36], eax |
1059 | ret |
1059 | ret |
1060 | @@: |
1060 | @@: |
1061 | cmp eax, 17 |
1061 | cmp eax, 17 |
1062 | ja @f |
1062 | ja @f |
1063 | call srv_handlerEx ;ebx |
1063 | call srv_handlerEx ;ebx |
1064 | mov [esp+36], eax |
1064 | mov [esp+36], eax |
1065 | ret |
1065 | ret |
1066 | @@: |
1066 | @@: |
1067 | cmp eax, 18 |
1067 | cmp eax, 18 |
1068 | ja @f |
1068 | ja @f |
1069 | mov ecx, [current_slot] |
1069 | mov ecx, [current_slot] |
1070 | mov eax, [ecx+APPDATA.sse_handler] |
1070 | mov eax, [ecx+APPDATA.sse_handler] |
1071 | mov [ecx+APPDATA.sse_handler], ebx |
1071 | mov [ecx+APPDATA.sse_handler], ebx |
1072 | mov [esp+36], eax |
1072 | mov [esp+36], eax |
1073 | ret |
1073 | ret |
1074 | @@: |
1074 | @@: |
1075 | cmp eax, 19 |
1075 | cmp eax, 19 |
1076 | ja @f |
1076 | ja @f |
1077 | cmp ebx, OS_BASE |
1077 | cmp ebx, OS_BASE |
1078 | jae .fail |
1078 | jae .fail |
1079 | stdcall load_library, ebx |
1079 | stdcall load_library, ebx |
1080 | mov [esp+36], eax |
1080 | mov [esp+36], eax |
1081 | ret |
1081 | ret |
1082 | @@: |
1082 | @@: |
1083 | cmp eax, 20 |
1083 | cmp eax, 20 |
1084 | ja @F |
1084 | ja @F |
1085 | mov eax, ecx |
1085 | mov eax, ecx |
1086 | call user_realloc |
1086 | call user_realloc |
1087 | mov [esp+36], eax |
1087 | mov [esp+36], eax |
1088 | ret |
1088 | ret |
1089 | @@: |
1089 | @@: |
1090 | cmp eax, 21 ;for test purposes only |
1090 | cmp eax, 21 ;for test purposes only |
1091 | ja @f ;will be removed soon |
1091 | ja @f ;will be removed soon |
1092 | cmp ebx, OS_BASE |
1092 | cmp ebx, OS_BASE |
1093 | jae .fail |
1093 | jae .fail |
1094 | 1094 | ||
1095 | stdcall load_PE, ebx |
1095 | stdcall load_PE, ebx |
1096 | 1096 | ||
1097 | test eax, eax |
1097 | test eax, eax |
1098 | jz @F |
1098 | jz @F |
1099 | 1099 | ||
1100 | mov esi, eax |
1100 | mov esi, eax |
1101 | stdcall eax, DRV_ENTRY |
1101 | stdcall eax, DRV_ENTRY |
1102 | 1102 | ||
1103 | test eax, eax |
1103 | test eax, eax |
1104 | jz @F |
1104 | jz @F |
1105 | 1105 | ||
1106 | mov [eax+SRV.entry], esi |
1106 | mov [eax+SRV.entry], esi |
1107 | 1107 | ||
1108 | @@: |
1108 | @@: |
1109 | mov [esp+36], eax |
1109 | mov [esp+36], eax |
1110 | ret |
1110 | ret |
1111 | 1111 | ||
1112 | 1112 | ||
1113 | .fail: |
1113 | .fail: |
1114 | xor eax, eax |
1114 | xor eax, eax |
1115 | mov [esp+36], eax |
1115 | mov [esp+36], eax |
1116 | ret |
1116 | ret |
1117 | 1117 | ||
1118 | align 4 |
1118 | align 4 |
1119 | proc load_pe_driver stdcall, file:dword |
1119 | proc load_pe_driver stdcall, file:dword |
1120 | 1120 | ||
1121 | stdcall load_PE, [file] |
1121 | stdcall load_PE, [file] |
1122 | test eax, eax |
1122 | test eax, eax |
1123 | jz .fail |
1123 | jz .fail |
1124 | 1124 | ||
1125 | mov esi, eax |
1125 | mov esi, eax |
1126 | stdcall eax, DRV_ENTRY |
1126 | stdcall eax, DRV_ENTRY |
1127 | test eax, eax |
1127 | test eax, eax |
1128 | jz .fail |
1128 | jz .fail |
1129 | 1129 | ||
1130 | mov [eax+SRV.entry], esi |
1130 | mov [eax+SRV.entry], esi |
1131 | ret |
1131 | ret |
1132 | 1132 | ||
1133 | .fail: |
1133 | .fail: |
1134 | xor eax, eax |
1134 | xor eax, eax |
1135 | ret |
1135 | ret |
1136 | endp |
1136 | endp |
1137 | 1137 | ||
1138 | 1138 | ||
1139 | align 4 |
1139 | align 4 |
1140 | proc init_mtrr |
1140 | proc init_mtrr |
1141 | 1141 | ||
1142 | cmp [BOOT_VAR+0x901c],byte 2 |
1142 | cmp [BOOT_VAR+0x901c],byte 2 |
1143 | je .exit |
1143 | je .exit |
1144 | 1144 | ||
1145 | bt [cpu_caps], CAPS_MTRR |
1145 | bt [cpu_caps], CAPS_MTRR |
1146 | jnc .exit |
1146 | jnc .exit |
1147 | 1147 | ||
1148 | mov eax, cr0 |
1148 | mov eax, cr0 |
1149 | or eax, 0x60000000 ;disable caching |
1149 | or eax, 0x60000000 ;disable caching |
1150 | mov cr0, eax |
1150 | mov cr0, eax |
1151 | wbinvd ;invalidate cache |
1151 | wbinvd ;invalidate cache |
1152 | 1152 | ||
1153 | mov ecx, 0x2FF |
1153 | mov ecx, 0x2FF |
1154 | rdmsr ; |
1154 | rdmsr ; |
1155 | push eax |
1155 | push eax |
1156 | 1156 | ||
1157 | xor edx, edx |
1157 | xor edx, edx |
1158 | xor eax, eax |
1158 | xor eax, eax |
1159 | mov ecx, 0x2FF |
1159 | mov ecx, 0x2FF |
1160 | wrmsr ;disable all MTRR |
1160 | wrmsr ;disable all MTRR |
- | 1161 | ||
- | 1162 | mov eax, [MEM_AMOUNT] |
|
- | 1163 | ; round eax up to next power of 2 |
|
- | 1164 | dec eax |
|
- | 1165 | bsr ecx, eax |
|
- | 1166 | mov eax, 2 |
|
1161 | 1167 | shl eax, cl |
|
1162 | stdcall set_mtrr, dword 0,dword 0,[MEM_AMOUNT],MEM_WB |
1168 | stdcall set_mtrr, edx,edx,eax,MEM_WB |
1163 | stdcall set_mtrr, dword 1,[LFBAddress],[LFBSize],MEM_WC |
1169 | stdcall set_mtrr, 1,[LFBAddress],[LFBSize],MEM_WC |
1164 | xor edx, edx |
1170 | xor edx, edx |
1165 | xor eax, eax |
1171 | xor eax, eax |
1166 | mov ecx, 0x204 |
1172 | mov ecx, 0x204 |
1167 | mov ebx, 6 |
1173 | mov ebx, 6 |
1168 | @@: |
1174 | @@: |
1169 | wrmsr ;disable unused MTRR |
1175 | wrmsr ;disable unused MTRR |
1170 | inc ecx |
1176 | inc ecx |
1171 | wrmsr |
1177 | wrmsr |
1172 | inc ecx |
1178 | inc ecx |
1173 | dec ebx |
1179 | dec ebx |
1174 | jnz @b |
1180 | jnz @b |
1175 | 1181 | ||
1176 | wbinvd ;again invalidate |
1182 | wbinvd ;again invalidate |
1177 | 1183 | ||
1178 | pop eax |
1184 | pop eax |
1179 | or eax, 0x800 ;set default memtype to UC |
1185 | or eax, 0x800 ;set default memtype to UC |
1180 | and al, 0xF0 |
1186 | and al, 0xF0 |
1181 | mov ecx, 0x2FF |
1187 | mov ecx, 0x2FF |
1182 | wrmsr ;and enable MTRR |
1188 | wrmsr ;and enable MTRR |
1183 | 1189 | ||
1184 | mov eax, cr0 |
1190 | mov eax, cr0 |
1185 | and eax, not 0x60000000 |
1191 | and eax, not 0x60000000 |
1186 | mov cr0, eax ; enable caching |
1192 | mov cr0, eax ; enable caching |
1187 | .exit: |
1193 | .exit: |
1188 | ret |
1194 | ret |
1189 | endp |
1195 | endp |
1190 | 1196 | ||
1191 | align 4 |
1197 | align 4 |
1192 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
1198 | proc set_mtrr stdcall, reg:dword,base:dword,size:dword,mem_type:dword |
1193 | 1199 | ||
1194 | xor edx, edx |
1200 | xor edx, edx |
1195 | mov eax, [base] |
1201 | mov eax, [base] |
1196 | or eax, [mem_type] |
1202 | or eax, [mem_type] |
1197 | mov ecx, [reg] |
1203 | mov ecx, [reg] |
1198 | lea ecx, [0x200+ecx*2] |
1204 | lea ecx, [0x200+ecx*2] |
1199 | wrmsr |
1205 | wrmsr |
1200 | 1206 | ||
1201 | mov ebx, [size] |
1207 | mov ebx, [size] |
1202 | dec ebx |
1208 | dec ebx |
1203 | mov eax, 0xFFFFFFFF |
1209 | mov eax, 0xFFFFFFFF |
1204 | mov edx, 0x0000000F |
1210 | mov edx, 0x0000000F |
1205 | sub eax, ebx |
1211 | sub eax, ebx |
1206 | sbb edx, 0 |
1212 | sbb edx, 0 |
1207 | or eax, 0x800 |
1213 | or eax, 0x800 |
1208 | inc ecx |
1214 | inc ecx |
1209 | wrmsr |
1215 | wrmsr |
1210 | ret |
1216 | ret |
1211 | endp |
1217 | endp |
1212 | 1218 | ||
1213 | align 4 |
1219 | align 4 |
1214 | proc stall stdcall, delay:dword |
1220 | proc stall stdcall, delay:dword |
1215 | push ecx |
1221 | push ecx |
1216 | push edx |
1222 | push edx |
1217 | push ebx |
1223 | push ebx |
1218 | push eax |
1224 | push eax |
1219 | 1225 | ||
1220 | mov eax, [delay] |
1226 | mov eax, [delay] |
1221 | mul [stall_mcs] |
1227 | mul [stall_mcs] |
1222 | mov ebx, eax ;low |
1228 | mov ebx, eax ;low |
1223 | mov ecx, edx ;high |
1229 | mov ecx, edx ;high |
1224 | rdtsc |
1230 | rdtsc |
1225 | add ebx, eax |
1231 | add ebx, eax |
1226 | adc ecx,edx |
1232 | adc ecx,edx |
1227 | @@: |
1233 | @@: |
1228 | rdtsc |
1234 | rdtsc |
1229 | sub eax, ebx |
1235 | sub eax, ebx |
1230 | sbb edx, ecx |
1236 | sbb edx, ecx |
1231 | jb @B |
1237 | jb @B |
1232 | 1238 | ||
1233 | pop eax |
1239 | pop eax |
1234 | pop ebx |
1240 | pop ebx |
1235 | pop edx |
1241 | pop edx |
1236 | pop ecx |
1242 | pop ecx |
1237 | ret |
1243 | ret |
1238 | endp |
1244 | endp |
1239 | 1245 | ||
1240 | align 4 |
1246 | align 4 |
1241 | proc create_ring_buffer stdcall, size:dword, flags:dword |
1247 | proc create_ring_buffer stdcall, size:dword, flags:dword |
1242 | locals |
1248 | locals |
1243 | buf_ptr dd ? |
1249 | buf_ptr dd ? |
1244 | endl |
1250 | endl |
1245 | 1251 | ||
1246 | mov eax, [size] |
1252 | mov eax, [size] |
1247 | test eax, eax |
1253 | test eax, eax |
1248 | jz .fail |
1254 | jz .fail |
1249 | 1255 | ||
1250 | add eax, eax |
1256 | add eax, eax |
1251 | stdcall alloc_kernel_space, eax |
1257 | stdcall alloc_kernel_space, eax |
1252 | test eax, eax |
1258 | test eax, eax |
1253 | jz .fail |
1259 | jz .fail |
1254 | 1260 | ||
1255 | push ebx |
1261 | push ebx |
1256 | 1262 | ||
1257 | mov [buf_ptr], eax |
1263 | mov [buf_ptr], eax |
1258 | 1264 | ||
1259 | mov ebx, [size] |
1265 | mov ebx, [size] |
1260 | shr ebx, 12 |
1266 | shr ebx, 12 |
1261 | push ebx |
1267 | push ebx |
1262 | 1268 | ||
1263 | stdcall alloc_pages, ebx |
1269 | stdcall alloc_pages, ebx |
1264 | pop ecx |
1270 | pop ecx |
1265 | 1271 | ||
1266 | test eax, eax |
1272 | test eax, eax |
1267 | jz .mm_fail |
1273 | jz .mm_fail |
1268 | 1274 | ||
1269 | push edi |
1275 | push edi |
1270 | 1276 | ||
1271 | or eax, [flags] |
1277 | or eax, [flags] |
1272 | mov edi, [buf_ptr] |
1278 | mov edi, [buf_ptr] |
1273 | mov ebx, [buf_ptr] |
1279 | mov ebx, [buf_ptr] |
1274 | mov edx, ecx |
1280 | mov edx, ecx |
1275 | shl edx, 2 |
1281 | shl edx, 2 |
1276 | shr edi, 10 |
1282 | shr edi, 10 |
1277 | @@: |
1283 | @@: |
1278 | mov [page_tabs+edi], eax |
1284 | mov [page_tabs+edi], eax |
1279 | mov [page_tabs+edi+edx], eax |
1285 | mov [page_tabs+edi+edx], eax |
1280 | add eax, 0x1000 |
1286 | add eax, 0x1000 |
1281 | add ebx, 0x1000 |
1287 | add ebx, 0x1000 |
1282 | add edi, 4 |
1288 | add edi, 4 |
1283 | dec ecx |
1289 | dec ecx |
1284 | jnz @B |
1290 | jnz @B |
1285 | 1291 | ||
1286 | mov eax, [buf_ptr] |
1292 | mov eax, [buf_ptr] |
1287 | pop edi |
1293 | pop edi |
1288 | pop ebx |
1294 | pop ebx |
1289 | ret |
1295 | ret |
1290 | .mm_fail: |
1296 | .mm_fail: |
1291 | stdcall free_kernel_space, [buf_ptr] |
1297 | stdcall free_kernel_space, [buf_ptr] |
1292 | xor eax, eax |
1298 | xor eax, eax |
1293 | pop ebx |
1299 | pop ebx |
1294 | .fail: |
1300 | .fail: |
1295 | ret |
1301 | ret |
1296 | endp0>> |
1302 | endp0>> |