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Rev 3486 | Rev 3534 | ||
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1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
2 | ;; ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2012. 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: 3486 $ |
8 | $Revision: 3534 $ |
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 | ;//- |
17 | ;//- |
18 | cmp [pg_data.pages_free], 1 |
18 | cmp [pg_data.pages_free], 1 |
19 | jle .out_of_memory |
19 | jle .out_of_memory |
20 | ;//- |
20 | ;//- |
21 | 21 | ||
22 | mov ebx, [page_start] |
22 | mov ebx, [page_start] |
23 | mov ecx, [page_end] |
23 | mov ecx, [page_end] |
24 | .l1: |
24 | .l1: |
25 | bsf eax, [ebx]; |
25 | bsf eax, [ebx]; |
26 | jnz .found |
26 | jnz .found |
27 | add ebx, 4 |
27 | add ebx, 4 |
28 | cmp ebx, ecx |
28 | cmp ebx, ecx |
29 | jb .l1 |
29 | jb .l1 |
30 | pop ebx |
30 | pop ebx |
31 | popfd |
31 | popfd |
32 | xor eax, eax |
32 | xor eax, eax |
33 | ret |
33 | ret |
34 | .found: |
34 | .found: |
35 | ;//- |
35 | ;//- |
36 | dec [pg_data.pages_free] |
36 | dec [pg_data.pages_free] |
37 | jz .out_of_memory |
37 | jz .out_of_memory |
38 | ;//- |
38 | ;//- |
39 | btr [ebx], eax |
39 | btr [ebx], eax |
40 | mov [page_start], ebx |
40 | mov [page_start], ebx |
41 | sub ebx, sys_pgmap |
41 | sub ebx, sys_pgmap |
42 | lea eax, [eax+ebx*8] |
42 | lea eax, [eax+ebx*8] |
43 | shl eax, 12 |
43 | shl eax, 12 |
44 | ;//- dec [pg_data.pages_free] |
44 | ;//- dec [pg_data.pages_free] |
45 | pop ebx |
45 | pop ebx |
46 | popfd |
46 | popfd |
47 | ret |
47 | ret |
48 | ;//- |
48 | ;//- |
49 | .out_of_memory: |
49 | .out_of_memory: |
50 | mov [pg_data.pages_free], 1 |
50 | mov [pg_data.pages_free], 1 |
51 | xor eax, eax |
51 | xor eax, eax |
52 | pop ebx |
52 | pop ebx |
53 | popfd |
53 | popfd |
54 | ret |
54 | ret |
55 | ;//- |
55 | ;//- |
56 | endp |
56 | endp |
57 | 57 | ||
58 | align 4 |
58 | align 4 |
59 | proc alloc_pages stdcall, count:dword |
59 | proc alloc_pages stdcall, count:dword |
60 | pushfd |
60 | pushfd |
61 | push ebx |
61 | push ebx |
62 | push edi |
62 | push edi |
63 | cli |
63 | cli |
64 | mov eax, [count] |
64 | mov eax, [count] |
65 | add eax, 7 |
65 | add eax, 7 |
66 | shr eax, 3 |
66 | shr eax, 3 |
67 | mov [count], eax |
67 | mov [count], eax |
68 | ;//- |
68 | ;//- |
69 | mov ebx, [pg_data.pages_free] |
69 | mov ebx, [pg_data.pages_free] |
70 | sub ebx, 9 |
70 | sub ebx, 9 |
71 | js .out_of_memory |
71 | js .out_of_memory |
72 | shr ebx, 3 |
72 | shr ebx, 3 |
73 | cmp eax, ebx |
73 | cmp eax, ebx |
74 | jg .out_of_memory |
74 | jg .out_of_memory |
75 | ;//- |
75 | ;//- |
76 | mov ecx, [page_start] |
76 | mov ecx, [page_start] |
77 | mov ebx, [page_end] |
77 | mov ebx, [page_end] |
78 | .find: |
78 | .find: |
79 | mov edx, [count] |
79 | mov edx, [count] |
80 | mov edi, ecx |
80 | mov edi, ecx |
81 | .match: |
81 | .match: |
82 | cmp byte [ecx], 0xFF |
82 | cmp byte [ecx], 0xFF |
83 | jne .next |
83 | jne .next |
84 | dec edx |
84 | dec edx |
85 | jz .ok |
85 | jz .ok |
86 | inc ecx |
86 | inc ecx |
87 | cmp ecx, ebx |
87 | cmp ecx, ebx |
88 | jb .match |
88 | jb .match |
89 | .out_of_memory: |
89 | .out_of_memory: |
90 | .fail: |
90 | .fail: |
91 | xor eax, eax |
91 | xor eax, eax |
92 | pop edi |
92 | pop edi |
93 | pop ebx |
93 | pop ebx |
94 | popfd |
94 | popfd |
95 | ret |
95 | ret |
96 | .next: |
96 | .next: |
97 | inc ecx |
97 | inc ecx |
98 | cmp ecx, ebx |
98 | cmp ecx, ebx |
99 | jb .find |
99 | jb .find |
100 | pop edi |
100 | pop edi |
101 | pop ebx |
101 | pop ebx |
102 | popfd |
102 | popfd |
103 | xor eax, eax |
103 | xor eax, eax |
104 | ret |
104 | ret |
105 | .ok: |
105 | .ok: |
106 | sub ecx, edi |
106 | sub ecx, edi |
107 | inc ecx |
107 | inc ecx |
108 | push esi |
108 | push esi |
109 | mov esi, edi |
109 | mov esi, edi |
110 | xor eax, eax |
110 | xor eax, eax |
111 | rep stosb |
111 | rep stosb |
112 | sub esi, sys_pgmap |
112 | sub esi, sys_pgmap |
113 | shl esi, 3+12 |
113 | shl esi, 3+12 |
114 | mov eax, esi |
114 | mov eax, esi |
115 | mov ebx, [count] |
115 | mov ebx, [count] |
116 | shl ebx, 3 |
116 | shl ebx, 3 |
117 | sub [pg_data.pages_free], ebx |
117 | sub [pg_data.pages_free], ebx |
118 | pop esi |
118 | pop esi |
119 | pop edi |
119 | pop edi |
120 | pop ebx |
120 | pop ebx |
121 | popfd |
121 | popfd |
122 | ret |
122 | ret |
123 | endp |
123 | endp |
124 | 124 | ||
125 | align 4 |
125 | align 4 |
126 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
126 | proc map_page stdcall,lin_addr:dword,phis_addr:dword,flags:dword |
127 | push ebx |
127 | push ebx |
128 | mov eax, [phis_addr] |
128 | mov eax, [phis_addr] |
129 | and eax, not 0xFFF |
129 | and eax, not 0xFFF |
130 | or eax, [flags] |
130 | or eax, [flags] |
131 | mov ebx, [lin_addr] |
131 | mov ebx, [lin_addr] |
132 | shr ebx, 12 |
132 | shr ebx, 12 |
133 | mov [page_tabs+ebx*4], eax |
133 | mov [page_tabs+ebx*4], eax |
134 | mov eax, [lin_addr] |
134 | mov eax, [lin_addr] |
135 | invlpg [eax] |
135 | invlpg [eax] |
136 | pop ebx |
136 | pop ebx |
137 | ret |
137 | ret |
138 | endp |
138 | endp |
139 | 139 | ||
140 | align 4 |
140 | align 4 |
141 | map_space: ;not implemented |
141 | map_space: ;not implemented |
142 | 142 | ||
143 | 143 | ||
144 | ret |
144 | ret |
145 | 145 | ||
146 | 146 | ||
147 | align 4 |
147 | align 4 |
148 | proc free_page |
148 | proc free_page |
149 | ;arg: eax page address |
149 | ;arg: eax page address |
150 | pushfd |
150 | pushfd |
151 | cli |
151 | cli |
152 | shr eax, 12 ;page index |
152 | shr eax, 12 ;page index |
153 | bts dword [sys_pgmap], eax ;that's all! |
153 | bts dword [sys_pgmap], eax ;that's all! |
154 | cmc |
154 | cmc |
155 | adc [pg_data.pages_free], 0 |
155 | adc [pg_data.pages_free], 0 |
156 | shr eax, 3 |
156 | shr eax, 3 |
157 | and eax, not 3 ;dword offset from page_map |
157 | and eax, not 3 ;dword offset from page_map |
158 | add eax, sys_pgmap |
158 | add eax, sys_pgmap |
159 | cmp [page_start], eax |
159 | cmp [page_start], eax |
160 | ja @f |
160 | ja @f |
161 | popfd |
161 | popfd |
162 | ret |
162 | ret |
163 | @@: |
163 | @@: |
164 | mov [page_start], eax |
164 | mov [page_start], eax |
165 | popfd |
165 | popfd |
166 | ret |
166 | ret |
167 | endp |
167 | endp |
168 | 168 | ||
169 | align 4 |
169 | align 4 |
170 | proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
170 | proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
171 | 171 | ||
172 | push ebx |
172 | push ebx |
173 | push edi |
173 | push edi |
174 | mov eax, [size] |
174 | mov eax, [size] |
175 | add eax, [base] |
175 | add eax, [base] |
176 | add eax, 4095 |
176 | add eax, 4095 |
177 | and eax, -4096 |
177 | and eax, -4096 |
178 | mov ecx, [base] |
178 | mov ecx, [base] |
179 | and ecx, -4096 |
179 | and ecx, -4096 |
180 | sub eax, ecx |
180 | sub eax, ecx |
181 | mov [size], eax |
181 | mov [size], eax |
182 | 182 | ||
183 | stdcall alloc_kernel_space, eax |
183 | stdcall alloc_kernel_space, eax |
184 | test eax, eax |
184 | test eax, eax |
185 | jz .fail |
185 | jz .fail |
186 | push eax |
186 | push eax |
187 | 187 | ||
188 | mov edi, 0x1000 |
188 | mov edi, 0x1000 |
189 | mov ebx, eax |
189 | mov ebx, eax |
190 | mov ecx, [size] |
190 | mov ecx, [size] |
191 | mov edx, [base] |
191 | mov edx, [base] |
192 | shr eax, 12 |
192 | shr eax, 12 |
193 | shr ecx, 12 |
193 | shr ecx, 12 |
194 | and edx, -4096 |
194 | and edx, -4096 |
195 | or edx, [flags] |
195 | or edx, [flags] |
196 | @@: |
196 | @@: |
197 | mov [page_tabs+eax*4], edx |
197 | mov [page_tabs+eax*4], edx |
198 | invlpg [ebx] |
198 | invlpg [ebx] |
199 | inc eax |
199 | inc eax |
200 | add ebx, edi |
200 | add ebx, edi |
201 | add edx, edi |
201 | add edx, edi |
202 | loop @B |
202 | loop @B |
203 | 203 | ||
204 | pop eax |
204 | pop eax |
205 | mov edx, [base] |
205 | mov edx, [base] |
206 | and edx, 4095 |
206 | and edx, 4095 |
207 | add eax, edx |
207 | add eax, edx |
208 | .fail: |
208 | .fail: |
209 | pop edi |
209 | pop edi |
210 | pop ebx |
210 | pop ebx |
211 | ret |
211 | ret |
212 | endp |
212 | endp |
213 | 213 | ||
214 | ; param |
214 | ; param |
215 | ; eax= page base + page flags |
215 | ; eax= page base + page flags |
216 | ; ebx= linear address |
216 | ; ebx= linear address |
217 | ; ecx= count |
217 | ; ecx= count |
218 | 218 | ||
219 | align 4 |
219 | align 4 |
220 | commit_pages: |
220 | commit_pages: |
221 | test ecx, ecx |
221 | test ecx, ecx |
222 | jz .fail |
222 | jz .fail |
223 | 223 | ||
224 | push edi |
224 | push edi |
225 | push eax |
225 | push eax |
226 | push ecx |
226 | push ecx |
227 | mov ecx, pg_data.mutex |
227 | mov ecx, pg_data.mutex |
228 | call mutex_lock |
228 | call mutex_lock |
229 | pop ecx |
229 | pop ecx |
230 | pop eax |
230 | pop eax |
231 | 231 | ||
232 | mov edi, ebx |
232 | mov edi, ebx |
233 | shr edi, 12 |
233 | shr edi, 12 |
234 | lea edi, [page_tabs+edi*4] |
234 | lea edi, [page_tabs+edi*4] |
235 | @@: |
235 | @@: |
236 | stosd |
236 | stosd |
237 | invlpg [ebx] |
237 | invlpg [ebx] |
238 | add eax, 0x1000 |
238 | add eax, 0x1000 |
239 | add ebx, 0x1000 |
239 | add ebx, 0x1000 |
240 | loop @B |
240 | loop @B |
241 | 241 | ||
242 | pop edi |
242 | pop edi |
243 | 243 | ||
244 | mov ecx, pg_data.mutex |
244 | mov ecx, pg_data.mutex |
245 | call mutex_unlock |
245 | call mutex_unlock |
246 | .fail: |
246 | .fail: |
247 | ret |
247 | ret |
248 | 248 | ||
249 | 249 | ||
250 | ; param |
250 | ; param |
251 | ; eax= base |
251 | ; eax= base |
252 | ; ecx= count |
252 | ; ecx= count |
253 | 253 | ||
254 | align 4 |
254 | align 4 |
255 | release_pages: |
255 | release_pages: |
256 | 256 | ||
257 | push ebp |
257 | push ebp |
258 | push esi |
258 | push esi |
259 | push edi |
259 | push edi |
260 | push ebx |
260 | push ebx |
261 | 261 | ||
262 | mov esi, eax |
262 | mov esi, eax |
263 | mov edi, eax |
263 | mov edi, eax |
264 | 264 | ||
265 | shr esi, 12 |
265 | shr esi, 12 |
266 | lea esi, [page_tabs+esi*4] |
266 | lea esi, [page_tabs+esi*4] |
267 | 267 | ||
268 | push ecx |
268 | push ecx |
269 | mov ecx, pg_data.mutex |
269 | mov ecx, pg_data.mutex |
270 | call mutex_lock |
270 | call mutex_lock |
271 | pop ecx |
271 | pop ecx |
272 | 272 | ||
273 | mov ebp, [pg_data.pages_free] |
273 | mov ebp, [pg_data.pages_free] |
274 | mov ebx, [page_start] |
274 | mov ebx, [page_start] |
275 | mov edx, sys_pgmap |
275 | mov edx, sys_pgmap |
276 | @@: |
276 | @@: |
277 | xor eax, eax |
277 | xor eax, eax |
278 | xchg eax, [esi] |
278 | xchg eax, [esi] |
279 | invlpg [edi] |
279 | invlpg [edi] |
280 | 280 | ||
281 | test eax, 1 |
281 | test eax, 1 |
282 | jz .next |
282 | jz .next |
283 | 283 | ||
284 | shr eax, 12 |
284 | shr eax, 12 |
285 | bts [edx], eax |
285 | bts [edx], eax |
286 | cmc |
286 | cmc |
287 | adc ebp, 0 |
287 | adc ebp, 0 |
288 | shr eax, 3 |
288 | shr eax, 3 |
289 | and eax, -4 |
289 | and eax, -4 |
290 | add eax, edx |
290 | add eax, edx |
291 | cmp eax, ebx |
291 | cmp eax, ebx |
292 | jae .next |
292 | jae .next |
293 | 293 | ||
294 | mov ebx, eax |
294 | mov ebx, eax |
295 | .next: |
295 | .next: |
296 | add edi, 0x1000 |
296 | add edi, 0x1000 |
297 | add esi, 4 |
297 | add esi, 4 |
298 | loop @B |
298 | loop @B |
299 | 299 | ||
300 | mov [pg_data.pages_free], ebp |
300 | mov [pg_data.pages_free], ebp |
301 | mov ecx, pg_data.mutex |
301 | mov ecx, pg_data.mutex |
302 | call mutex_unlock |
302 | call mutex_unlock |
303 | 303 | ||
304 | pop ebx |
304 | pop ebx |
305 | pop edi |
305 | pop edi |
306 | pop esi |
306 | pop esi |
307 | pop ebp |
307 | pop ebp |
308 | ret |
308 | ret |
309 | 309 | ||
310 | ; param |
310 | ; param |
311 | ; eax= base |
311 | ; eax= base |
312 | ; ecx= count |
312 | ; ecx= count |
313 | 313 | ||
314 | align 4 |
314 | align 4 |
315 | unmap_pages: |
315 | unmap_pages: |
316 | 316 | ||
317 | push edi |
317 | push edi |
318 | 318 | ||
319 | mov edi, eax |
319 | mov edi, eax |
320 | mov edx, eax |
320 | mov edx, eax |
321 | 321 | ||
322 | shr edi, 10 |
322 | shr edi, 10 |
323 | add edi, page_tabs |
323 | add edi, page_tabs |
324 | 324 | ||
325 | xor eax, eax |
325 | xor eax, eax |
326 | @@: |
326 | @@: |
327 | stosd |
327 | stosd |
328 | invlpg [edx] |
328 | invlpg [edx] |
329 | add edx, 0x1000 |
329 | add edx, 0x1000 |
330 | loop @b |
330 | loop @b |
331 | 331 | ||
332 | pop edi |
332 | pop edi |
333 | ret |
333 | ret |
334 | 334 | ||
335 | 335 | ||
336 | align 4 |
336 | align 4 |
337 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
337 | proc map_page_table stdcall, lin_addr:dword, phis_addr:dword |
338 | push ebx |
338 | push ebx |
339 | mov ebx, [lin_addr] |
339 | mov ebx, [lin_addr] |
340 | shr ebx, 22 |
340 | shr ebx, 22 |
341 | mov eax, [phis_addr] |
341 | mov eax, [phis_addr] |
342 | and eax, not 0xFFF |
342 | and eax, not 0xFFF |
343 | or eax, PG_UW ;+PG_NOCACHE |
343 | or eax, PG_UW ;+PG_NOCACHE |
344 | mov dword [master_tab+ebx*4], eax |
344 | mov dword [master_tab+ebx*4], eax |
345 | mov eax, [lin_addr] |
345 | mov eax, [lin_addr] |
346 | shr eax, 10 |
346 | shr eax, 10 |
347 | add eax, page_tabs |
347 | add eax, page_tabs |
348 | invlpg [eax] |
348 | invlpg [eax] |
349 | pop ebx |
349 | pop ebx |
350 | ret |
350 | ret |
351 | endp |
351 | endp |
352 | 352 | ||
353 | align 4 |
353 | align 4 |
354 | proc init_LFB |
354 | proc init_LFB |
355 | locals |
355 | locals |
356 | pg_count dd ? |
356 | pg_count dd ? |
357 | endl |
357 | endl |
358 | 358 | ||
359 | cmp dword [LFBAddress], -1 |
359 | cmp dword [LFBAddress], -1 |
360 | jne @f |
360 | jne @f |
361 | mov [BOOT_VAR+BOOT_MTRR], byte 2 |
361 | mov [BOOT_VAR+BOOT_MTRR], byte 2 |
362 | ; max VGA=640*480*4=1228800 bytes |
362 | ; max VGA=640*480*4=1228800 bytes |
363 | ; + 32*640*4=81920 bytes for mouse pointer |
363 | ; + 32*640*4=81920 bytes for mouse pointer |
364 | stdcall alloc_pages, ((1228800+81920)/4096) |
364 | stdcall alloc_pages, ((1228800+81920)/4096) |
365 | 365 | ||
366 | push eax |
366 | push eax |
367 | call alloc_page |
367 | call alloc_page |
368 | stdcall map_page_table, LFB_BASE, eax |
368 | stdcall map_page_table, LFB_BASE, eax |
369 | pop eax |
369 | pop eax |
370 | or eax, PG_UW |
370 | or eax, PG_UW |
371 | mov ebx, LFB_BASE |
371 | mov ebx, LFB_BASE |
372 | ; max VGA=640*480*4=1228800 bytes |
372 | ; max VGA=640*480*4=1228800 bytes |
373 | ; + 32*640*4=81920 bytes for mouse pointer |
373 | ; + 32*640*4=81920 bytes for mouse pointer |
374 | mov ecx, (1228800+81920)/4096 |
374 | mov ecx, (1228800+81920)/4096 |
375 | call commit_pages |
375 | call commit_pages |
376 | mov [LFBAddress], dword LFB_BASE |
376 | mov [LFBAddress], dword LFB_BASE |
377 | ret |
377 | ret |
378 | @@: |
378 | @@: |
379 | test [SCR_MODE], word 0100000000000000b |
379 | test [SCR_MODE], word 0100000000000000b |
380 | jnz @f |
380 | jnz @f |
381 | mov [BOOT_VAR+BOOT_MTRR], byte 2 |
381 | mov [BOOT_VAR+BOOT_MTRR], byte 2 |
382 | ret |
382 | ret |
383 | @@: |
383 | @@: |
384 | call init_mtrr |
384 | call init_mtrr |
385 | 385 | ||
386 | mov edx, LFB_BASE |
386 | mov edx, LFB_BASE |
387 | mov esi, [LFBAddress] |
387 | mov esi, [LFBAddress] |
388 | mov edi, 0x00C00000 |
388 | mov edi, 0x00C00000 |
389 | mov dword [exp_lfb+4], edx |
389 | mov dword [exp_lfb+4], edx |
390 | 390 | ||
391 | shr edi, 12 |
391 | shr edi, 12 |
392 | mov [pg_count], edi |
392 | mov [pg_count], edi |
393 | shr edi, 10 |
393 | shr edi, 10 |
394 | 394 | ||
395 | bt [cpu_caps], CAPS_PSE |
395 | bt [cpu_caps], CAPS_PSE |
396 | jnc .map_page_tables |
396 | jnc .map_page_tables |
397 | or esi, PG_LARGE+PG_UW |
397 | or esi, PG_LARGE+PG_UW |
398 | mov edx, sys_pgdir+(LFB_BASE shr 20) |
398 | mov edx, sys_pgdir+(LFB_BASE shr 20) |
399 | @@: |
399 | @@: |
400 | mov [edx], esi |
400 | mov [edx], esi |
401 | add edx, 4 |
401 | add edx, 4 |
402 | add esi, 0x00400000 |
402 | add esi, 0x00400000 |
403 | dec edi |
403 | dec edi |
404 | jnz @B |
404 | jnz @B |
405 | 405 | ||
406 | bt [cpu_caps], CAPS_PGE |
406 | bt [cpu_caps], CAPS_PGE |
407 | jnc @F |
407 | jnc @F |
408 | or dword [sys_pgdir+(LFB_BASE shr 20)], PG_GLOBAL |
408 | or dword [sys_pgdir+(LFB_BASE shr 20)], PG_GLOBAL |
409 | @@: |
409 | @@: |
410 | mov dword [LFBAddress], LFB_BASE |
410 | mov dword [LFBAddress], LFB_BASE |
411 | mov eax, cr3 ;flush TLB |
411 | mov eax, cr3 ;flush TLB |
412 | mov cr3, eax |
412 | mov cr3, eax |
413 | ret |
413 | ret |
414 | 414 | ||
415 | .map_page_tables: |
415 | .map_page_tables: |
416 | 416 | ||
417 | @@: |
417 | @@: |
418 | call alloc_page |
418 | call alloc_page |
419 | stdcall map_page_table, edx, eax |
419 | stdcall map_page_table, edx, eax |
420 | add edx, 0x00400000 |
420 | add edx, 0x00400000 |
421 | dec edi |
421 | dec edi |
422 | jnz @B |
422 | jnz @B |
423 | 423 | ||
424 | mov eax, [LFBAddress] |
424 | mov eax, [LFBAddress] |
425 | mov edi, page_tabs + (LFB_BASE shr 10) |
425 | mov edi, page_tabs + (LFB_BASE shr 10) |
426 | or eax, PG_UW |
426 | or eax, PG_UW |
427 | mov ecx, [pg_count] |
427 | mov ecx, [pg_count] |
428 | cld |
428 | cld |
429 | @@: |
429 | @@: |
430 | stosd |
430 | stosd |
431 | add eax, 0x1000 |
431 | add eax, 0x1000 |
432 | dec ecx |
432 | dec ecx |
433 | jnz @B |
433 | jnz @B |
434 | 434 | ||
435 | mov dword [LFBAddress], LFB_BASE |
435 | mov dword [LFBAddress], LFB_BASE |
436 | mov eax, cr3 ;flush TLB |
436 | mov eax, cr3 ;flush TLB |
437 | mov cr3, eax |
437 | mov cr3, eax |
438 | 438 | ||
439 | ret |
439 | ret |
440 | endp |
440 | endp |
441 | 441 | ||
442 | align 4 |
442 | align 4 |
443 | proc new_mem_resize stdcall, new_size:dword |
443 | proc new_mem_resize stdcall, new_size:dword |
444 | 444 | ||
445 | push ebx |
445 | push ebx |
446 | push esi |
446 | push esi |
447 | push edi |
447 | push edi |
448 | 448 | ||
449 | mov edx, [current_slot] |
449 | mov edx, [current_slot] |
450 | cmp [edx+APPDATA.heap_base], 0 |
450 | cmp [edx+APPDATA.heap_base], 0 |
451 | jne .exit |
451 | jne .exit |
452 | 452 | ||
453 | mov edi, [new_size] |
453 | mov edi, [new_size] |
454 | add edi, 4095 |
454 | add edi, 4095 |
455 | and edi, not 4095 |
455 | and edi, not 4095 |
456 | mov [new_size], edi |
456 | mov [new_size], edi |
457 | 457 | ||
458 | mov esi, [edx+APPDATA.mem_size] |
458 | mov esi, [edx+APPDATA.mem_size] |
459 | add esi, 4095 |
459 | add esi, 4095 |
460 | and esi, not 4095 |
460 | and esi, not 4095 |
461 | 461 | ||
462 | cmp edi, esi |
462 | cmp edi, esi |
463 | ja .expand |
463 | ja .expand |
464 | je .exit |
464 | je .exit |
465 | 465 | ||
466 | mov ebx, edi |
466 | mov ebx, edi |
467 | shr edi, 12 |
467 | shr edi, 12 |
468 | shr esi, 12 |
468 | shr esi, 12 |
469 | 469 | ||
470 | mov ecx, pg_data.mutex |
470 | mov ecx, pg_data.mutex |
471 | call mutex_lock |
471 | call mutex_lock |
472 | @@: |
472 | @@: |
473 | mov eax, [app_page_tabs+edi*4] |
473 | mov eax, [app_page_tabs+edi*4] |
474 | test eax, 1 |
474 | test eax, 1 |
475 | jz .next |
475 | jz .next |
476 | 476 | ||
477 | mov dword [app_page_tabs+edi*4], 0 |
477 | mov dword [app_page_tabs+edi*4], 0 |
478 | invlpg [ebx] |
478 | invlpg [ebx] |
479 | call free_page |
479 | call free_page |
480 | 480 | ||
481 | .next: |
481 | .next: |
482 | inc edi |
482 | inc edi |
483 | add ebx, 0x1000 |
483 | add ebx, 0x1000 |
484 | cmp edi, esi |
484 | cmp edi, esi |
485 | jb @B |
485 | jb @B |
486 | 486 | ||
487 | mov ecx, pg_data.mutex |
487 | mov ecx, pg_data.mutex |
488 | call mutex_unlock |
488 | call mutex_unlock |
489 | 489 | ||
490 | .update_size: |
490 | .update_size: |
491 | mov edx, [current_slot] |
491 | mov edx, [current_slot] |
492 | mov ebx, [new_size] |
492 | mov ebx, [new_size] |
493 | call update_mem_size |
493 | call update_mem_size |
494 | .exit: |
494 | .exit: |
495 | pop edi |
495 | pop edi |
496 | pop esi |
496 | pop esi |
497 | pop ebx |
497 | pop ebx |
498 | xor eax, eax |
498 | xor eax, eax |
499 | ret |
499 | ret |
500 | 500 | ||
501 | .expand: |
501 | .expand: |
502 | 502 | ||
503 | mov ecx, pg_data.mutex |
503 | mov ecx, pg_data.mutex |
504 | call mutex_lock |
504 | call mutex_lock |
505 | 505 | ||
506 | xchg esi, edi |
506 | xchg esi, edi |
507 | 507 | ||
508 | push esi ;new size |
508 | push esi ;new size |
509 | push edi ;old size |
509 | push edi ;old size |
510 | 510 | ||
511 | add edi, 0x3FFFFF |
511 | add edi, 0x3FFFFF |
512 | and edi, not(0x3FFFFF) |
512 | and edi, not(0x3FFFFF) |
513 | add esi, 0x3FFFFF |
513 | add esi, 0x3FFFFF |
514 | and esi, not(0x3FFFFF) |
514 | and esi, not(0x3FFFFF) |
515 | 515 | ||
516 | cmp edi, esi |
516 | cmp edi, esi |
517 | jae .grow |
517 | jae .grow |
518 | @@: |
518 | @@: |
519 | call alloc_page |
519 | call alloc_page |
520 | test eax, eax |
520 | test eax, eax |
521 | jz .exit_fail |
521 | jz .exit_fail |
522 | 522 | ||
523 | stdcall map_page_table, edi, eax |
523 | stdcall map_page_table, edi, eax |
524 | 524 | ||
525 | push edi |
525 | push edi |
526 | shr edi, 10 |
526 | shr edi, 10 |
527 | add edi, page_tabs |
527 | add edi, page_tabs |
528 | mov ecx, 1024 |
528 | mov ecx, 1024 |
529 | xor eax, eax |
529 | xor eax, eax |
530 | cld |
530 | cld |
531 | rep stosd |
531 | rep stosd |
532 | pop edi |
532 | pop edi |
533 | 533 | ||
534 | add edi, 0x00400000 |
534 | add edi, 0x00400000 |
535 | cmp edi, esi |
535 | cmp edi, esi |
536 | jb @B |
536 | jb @B |
537 | .grow: |
537 | .grow: |
538 | pop edi ;old size |
538 | pop edi ;old size |
539 | pop ecx ;new size |
539 | pop ecx ;new size |
540 | 540 | ||
541 | shr edi, 10 |
541 | shr edi, 10 |
542 | shr ecx, 10 |
542 | shr ecx, 10 |
543 | sub ecx, edi |
543 | sub ecx, edi |
544 | shr ecx, 2 ;pages count |
544 | shr ecx, 2 ;pages count |
545 | mov eax, 2 |
545 | mov eax, 2 |
546 | 546 | ||
547 | add edi, app_page_tabs |
547 | add edi, app_page_tabs |
548 | rep stosd |
548 | rep stosd |
549 | 549 | ||
550 | mov ecx, pg_data.mutex |
550 | mov ecx, pg_data.mutex |
551 | call mutex_unlock |
551 | call mutex_unlock |
552 | 552 | ||
553 | jmp .update_size |
553 | jmp .update_size |
554 | 554 | ||
555 | .exit_fail: |
555 | .exit_fail: |
556 | mov ecx, pg_data.mutex |
556 | mov ecx, pg_data.mutex |
557 | call mutex_unlock |
557 | call mutex_unlock |
558 | 558 | ||
559 | add esp, 8 |
559 | add esp, 8 |
560 | pop edi |
560 | pop edi |
561 | pop esi |
561 | pop esi |
562 | pop ebx |
562 | pop ebx |
563 | xor eax, eax |
563 | xor eax, eax |
564 | inc eax |
564 | inc eax |
565 | ret |
565 | ret |
566 | endp |
566 | endp |
567 | 567 | ||
568 | 568 | ||
569 | align 4 |
569 | align 4 |
570 | update_mem_size: |
570 | update_mem_size: |
571 | ; in: edx = slot base |
571 | ; in: edx = slot base |
572 | ; ebx = new memory size |
572 | ; ebx = new memory size |
573 | ; destroys eax,ecx,edx |
573 | ; destroys eax,ecx,edx |
574 | 574 | ||
575 | mov [APPDATA.mem_size+edx], ebx |
575 | mov [APPDATA.mem_size+edx], ebx |
576 | ;search threads and update |
576 | ;search threads and update |
577 | ;application memory size infomation |
577 | ;application memory size infomation |
578 | mov ecx, [APPDATA.dir_table+edx] |
578 | mov ecx, [APPDATA.dir_table+edx] |
579 | mov eax, 2 |
579 | mov eax, 2 |
580 | 580 | ||
581 | .search_threads: |
581 | .search_threads: |
582 | ;eax = current slot |
582 | ;eax = current slot |
583 | ;ebx = new memory size |
583 | ;ebx = new memory size |
584 | ;ecx = page directory |
584 | ;ecx = page directory |
585 | cmp eax, [TASK_COUNT] |
585 | cmp eax, [TASK_COUNT] |
586 | jg .search_threads_end |
586 | jg .search_threads_end |
587 | mov edx, eax |
587 | mov edx, eax |
588 | shl edx, 5 |
588 | shl edx, 5 |
589 | cmp word [CURRENT_TASK+edx+TASKDATA.state], 9 ;if slot empty? |
589 | cmp word [CURRENT_TASK+edx+TASKDATA.state], 9 ;if slot empty? |
590 | jz .search_threads_next |
590 | jz .search_threads_next |
591 | shl edx, 3 |
591 | shl edx, 3 |
592 | cmp [SLOT_BASE+edx+APPDATA.dir_table], ecx ;if it is our thread? |
592 | cmp [SLOT_BASE+edx+APPDATA.dir_table], ecx ;if it is our thread? |
593 | jnz .search_threads_next |
593 | jnz .search_threads_next |
594 | mov [SLOT_BASE+edx+APPDATA.mem_size], ebx ;update memory size |
594 | mov [SLOT_BASE+edx+APPDATA.mem_size], ebx ;update memory size |
595 | .search_threads_next: |
595 | .search_threads_next: |
596 | inc eax |
596 | inc eax |
597 | jmp .search_threads |
597 | jmp .search_threads |
598 | .search_threads_end: |
598 | .search_threads_end: |
599 | ret |
599 | ret |
600 | 600 | ||
601 | ; param |
601 | ; param |
602 | ; eax= linear address |
602 | ; eax= linear address |
603 | ; |
603 | ; |
604 | ; retval |
604 | ; retval |
605 | ; eax= phisical page address |
605 | ; eax= phisical page address |
606 | 606 | ||
607 | align 4 |
607 | align 4 |
608 | get_pg_addr: |
608 | get_pg_addr: |
609 | sub eax, OS_BASE |
609 | sub eax, OS_BASE |
610 | cmp eax, 0x400000 |
610 | cmp eax, 0x400000 |
611 | jb @f |
611 | jb @f |
612 | shr eax, 12 |
612 | shr eax, 12 |
613 | mov eax, [page_tabs+(eax+(OS_BASE shr 12))*4] |
613 | mov eax, [page_tabs+(eax+(OS_BASE shr 12))*4] |
614 | @@: |
614 | @@: |
615 | and eax, 0xFFFFF000 |
615 | and eax, 0xFFFFF000 |
616 | ret |
616 | ret |
617 | 617 | ||
618 | 618 | ||
619 | align 4 |
619 | align 4 |
620 | ; Now it is called from core/sys32::exc_c (see stack frame there) |
620 | ; Now it is called from core/sys32::exc_c (see stack frame there) |
621 | proc page_fault_handler |
621 | proc page_fault_handler |
622 | 622 | ||
623 | .err_addr equ ebp-4 |
623 | .err_addr equ ebp-4 |
624 | 624 | ||
625 | push ebx ;save exception number (#PF) |
625 | push ebx ;save exception number (#PF) |
626 | mov ebp, esp |
626 | mov ebp, esp |
627 | mov ebx, cr2 |
627 | mov ebx, cr2 |
628 | push ebx ;that is locals: .err_addr = cr2 |
628 | push ebx ;that is locals: .err_addr = cr2 |
629 | inc [pg_data.pages_faults] |
629 | inc [pg_data.pages_faults] |
630 | 630 | ||
631 | mov eax, [pf_err_code] |
631 | mov eax, [pf_err_code] |
632 | 632 | ||
633 | cmp ebx, OS_BASE ;ebx == .err_addr |
633 | cmp ebx, OS_BASE ;ebx == .err_addr |
634 | jb .user_space ;ñòðà Ãèöà â ïà ìÿòè ïðèëîæåÃèÿ ; |
634 | jb .user_space ;ñòðà Ãèöà â ïà ìÿòè ïðèëîæåÃèÿ ; |
635 | 635 | ||
636 | cmp ebx, page_tabs |
636 | cmp ebx, page_tabs |
637 | jb .kernel_space ;ñòðà Ãèöà â ïà ìÿòè ÿäðà |
637 | jb .kernel_space ;ñòðà Ãèöà â ïà ìÿòè ÿäðà |
638 | 638 | ||
639 | cmp ebx, kernel_tabs |
639 | cmp ebx, kernel_tabs |
640 | jb .alloc;.app_tabs ;òà áëèöû ñòðà Ãèö ïðèëîæåÃèÿ ; |
640 | jb .alloc;.app_tabs ;òà áëèöû ñòðà Ãèö ïðèëîæåÃèÿ ; |
641 | ;ïðîñòî ñîçäà äèì îäÃó |
641 | ;ïðîñòî ñîçäà äèì îäÃó |
642 | if 0 ;ïîêà ýòî ïðîñòî ëèøÃåå |
642 | if 0 ;ïîêà ýòî ïðîñòî ëèøÃåå |
643 | cmp ebx, LFB_BASE |
643 | cmp ebx, LFB_BASE |
644 | jb .core_tabs ;òà áëèöû ñòðà Ãèö ÿäðà |
644 | jb .core_tabs ;òà áëèöû ñòðà Ãèö ÿäðà |
645 | ;Îøèáêà |
645 | ;Îøèáêà |
646 | .lfb: |
646 | .lfb: |
647 | ;îáëà ñòü LFB |
647 | ;îáëà ñòü LFB |
648 | ;Îøèáêà |
648 | ;Îøèáêà |
649 | jmp .fail |
649 | jmp .fail |
650 | end if |
650 | end if |
651 | .core_tabs: |
651 | .core_tabs: |
652 | .fail: ;simply return to caller |
652 | .fail: ;simply return to caller |
653 | mov esp, ebp |
653 | mov esp, ebp |
654 | pop ebx ;restore exception number (#PF) |
654 | pop ebx ;restore exception number (#PF) |
655 | ret |
655 | ret |
656 | 656 | ||
657 | ; xchg bx, bx |
657 | ; xchg bx, bx |
658 | ; add esp,12 ;clear in stack: locals(.err_addr) + #PF + ret_to_caller |
658 | ; add esp,12 ;clear in stack: locals(.err_addr) + #PF + ret_to_caller |
659 | ; restore_ring3_context |
659 | ; restore_ring3_context |
660 | ; iretd |
660 | ; iretd |
661 | 661 | ||
662 | .user_space: |
662 | .user_space: |
663 | test eax, PG_MAP |
663 | test eax, PG_MAP |
664 | jnz .err_access ;Ñòðà Ãèöà ïðèñóòñòâóåò |
664 | jnz .err_access ;Ñòðà Ãèöà ïðèñóòñòâóåò |
665 | ;Îøèáêà äîñòóïà ? |
665 | ;Îøèáêà äîñòóïà ? |
666 | 666 | ||
667 | shr ebx, 12 |
667 | shr ebx, 12 |
668 | mov ecx, ebx |
668 | mov ecx, ebx |
669 | shr ecx, 10 |
669 | shr ecx, 10 |
670 | mov edx, [master_tab+ecx*4] |
670 | mov edx, [master_tab+ecx*4] |
671 | test edx, PG_MAP |
671 | test edx, PG_MAP |
672 | jz .fail ;òà áëèöà ñòðà Ãèö ÃÃ¥ ñîçäà Ãà |
672 | jz .fail ;òà áëèöà ñòðà Ãèö ÃÃ¥ ñîçäà Ãà |
673 | ;ÃåâåðÃûé à äðåñ â ïðîãðà ììå |
673 | ;ÃåâåðÃûé à äðåñ â ïðîãðà ììå |
674 | 674 | ||
675 | mov eax, [page_tabs+ebx*4] |
675 | mov eax, [page_tabs+ebx*4] |
676 | test eax, 2 |
676 | test eax, 2 |
677 | jz .fail ;à äðåñ ÃÃ¥ çà ðåçåðâèðîâà à äëÿ ; |
677 | jz .fail ;à äðåñ ÃÃ¥ çà ðåçåðâèðîâà à äëÿ ; |
678 | ;èñïîëüçîâà Ãèÿ. Îøèáêà |
678 | ;èñïîëüçîâà Ãèÿ. Îøèáêà |
679 | .alloc: |
679 | .alloc: |
680 | call alloc_page |
680 | call alloc_page |
681 | test eax, eax |
681 | test eax, eax |
682 | jz .fail |
682 | jz .fail |
683 | 683 | ||
684 | stdcall map_page, [.err_addr], eax, PG_UW |
684 | stdcall map_page, [.err_addr], eax, PG_UW |
685 | 685 | ||
686 | mov edi, [.err_addr] |
686 | mov edi, [.err_addr] |
687 | and edi, 0xFFFFF000 |
687 | and edi, 0xFFFFF000 |
688 | mov ecx, 1024 |
688 | mov ecx, 1024 |
689 | xor eax, eax |
689 | xor eax, eax |
690 | ;cld ;caller is duty for this |
690 | ;cld ;caller is duty for this |
691 | rep stosd |
691 | rep stosd |
692 | .exit: ;iret with repeat fault instruction |
692 | .exit: ;iret with repeat fault instruction |
693 | add esp, 12;clear in stack: locals(.err_addr) + #PF + ret_to_caller |
693 | add esp, 12;clear in stack: locals(.err_addr) + #PF + ret_to_caller |
694 | restore_ring3_context |
694 | restore_ring3_context |
695 | iretd |
695 | iretd |
696 | 696 | ||
697 | .err_access: |
697 | .err_access: |
698 | ; access denied? this may be a result of copy-on-write protection for DLL |
698 | ; access denied? this may be a result of copy-on-write protection for DLL |
699 | ; check list of HDLLs |
699 | ; check list of HDLLs |
700 | and ebx, not 0xFFF |
700 | and ebx, not 0xFFF |
701 | mov eax, [CURRENT_TASK] |
701 | mov eax, [CURRENT_TASK] |
702 | shl eax, 8 |
702 | shl eax, 8 |
703 | mov eax, [SLOT_BASE+eax+APPDATA.dlls_list_ptr] |
703 | mov eax, [SLOT_BASE+eax+APPDATA.dlls_list_ptr] |
704 | test eax, eax |
704 | test eax, eax |
705 | jz .fail |
705 | jz .fail |
706 | mov esi, [eax+HDLL.fd] |
706 | mov esi, [eax+HDLL.fd] |
707 | .scan_hdll: |
707 | .scan_hdll: |
708 | cmp esi, eax |
708 | cmp esi, eax |
709 | jz .fail |
709 | jz .fail |
710 | mov edx, ebx |
710 | mov edx, ebx |
711 | sub edx, [esi+HDLL.base] |
711 | sub edx, [esi+HDLL.base] |
712 | cmp edx, [esi+HDLL.size] |
712 | cmp edx, [esi+HDLL.size] |
713 | jb .fault_in_hdll |
713 | jb .fault_in_hdll |
714 | .scan_hdll.next: |
714 | .scan_hdll.next: |
715 | mov esi, [esi+HDLL.fd] |
715 | mov esi, [esi+HDLL.fd] |
716 | jmp .scan_hdll |
716 | jmp .scan_hdll |
717 | .fault_in_hdll: |
717 | .fault_in_hdll: |
718 | ; allocate new page, map it as rw and copy data |
718 | ; allocate new page, map it as rw and copy data |
719 | call alloc_page |
719 | call alloc_page |
720 | test eax, eax |
720 | test eax, eax |
721 | jz .fail |
721 | jz .fail |
722 | stdcall map_page, ebx, eax, PG_UW |
722 | stdcall map_page, ebx, eax, PG_UW |
723 | mov edi, ebx |
723 | mov edi, ebx |
724 | mov ecx, 1024 |
724 | mov ecx, 1024 |
725 | sub ebx, [esi+HDLL.base] |
725 | sub ebx, [esi+HDLL.base] |
726 | mov esi, [esi+HDLL.parent] |
726 | mov esi, [esi+HDLL.parent] |
727 | mov esi, [esi+DLLDESCR.data] |
727 | mov esi, [esi+DLLDESCR.data] |
728 | add esi, ebx |
728 | add esi, ebx |
729 | rep movsd |
729 | rep movsd |
730 | jmp .exit |
730 | jmp .exit |
731 | 731 | ||
732 | .kernel_space: |
732 | .kernel_space: |
733 | test eax, PG_MAP |
733 | test eax, PG_MAP |
734 | jz .fail ;ñòðà Ãèöà ÃÃ¥ ïðèñóòñòâóåò |
734 | jz .fail ;ñòðà Ãèöà ÃÃ¥ ïðèñóòñòâóåò |
735 | 735 | ||
736 | test eax, 12 ;U/S (+below) |
736 | test eax, 12 ;U/S (+below) |
737 | jnz .fail ;ïðèëîæåÃèå îáðà òèëîñü ê ïà ìÿòè |
737 | jnz .fail ;ïðèëîæåÃèå îáðà òèëîñü ê ïà ìÿòè |
738 | ;ÿäðà |
738 | ;ÿäðà |
739 | ;test eax, 8 |
739 | ;test eax, 8 |
740 | ;jnz .fail ;óñòà Ãîâëåà çà ðåçåðâèðîâà ÃÃûé áèò |
740 | ;jnz .fail ;óñòà Ãîâëåà çà ðåçåðâèðîâà ÃÃûé áèò |
741 | ;â òà áëèöà õ ñòðà Ãèö. äîáà âëåÃî â P4/Xeon |
741 | ;â òà áëèöà õ ñòðà Ãèö. äîáà âëåÃî â P4/Xeon |
742 | 742 | ||
743 | ;ïîïûòêà çà ïèñè â çà ùèù¸ÃÃóþ ñòðà Ãèöó ÿäðà |
743 | ;ïîïûòêà çà ïèñè â çà ùèù¸ÃÃóþ ñòðà Ãèöó ÿäðà |
744 | 744 | ||
745 | cmp ebx, tss._io_map_0 |
745 | cmp ebx, tss._io_map_0 |
746 | jb .fail |
746 | jb .fail |
747 | 747 | ||
748 | cmp ebx, tss._io_map_0+8192 |
748 | cmp ebx, tss._io_map_0+8192 |
749 | jae .fail |
749 | jae .fail |
750 | 750 | ||
751 | ; io permission map |
751 | ; io permission map |
752 | ; copy-on-write protection |
752 | ; copy-on-write protection |
753 | 753 | ||
754 | call alloc_page |
754 | call alloc_page |
755 | test eax, eax |
755 | test eax, eax |
756 | jz .fail |
756 | jz .fail |
757 | 757 | ||
758 | push eax |
758 | push eax |
759 | stdcall map_page, [.err_addr], eax, dword PG_SW |
759 | stdcall map_page, [.err_addr], eax, dword PG_SW |
760 | pop eax |
760 | pop eax |
761 | mov edi, [.err_addr] |
761 | mov edi, [.err_addr] |
762 | and edi, -4096 |
762 | and edi, -4096 |
763 | lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0 |
763 | lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0 |
764 | 764 | ||
765 | mov ebx, esi |
765 | mov ebx, esi |
766 | shr ebx, 12 |
766 | shr ebx, 12 |
767 | mov edx, [current_slot] |
767 | mov edx, [current_slot] |
768 | or eax, PG_SW |
768 | or eax, PG_SW |
769 | mov [edx+APPDATA.io_map+ebx*4], eax |
769 | mov [edx+APPDATA.io_map+ebx*4], eax |
770 | 770 | ||
771 | add esi, [default_io_map] |
771 | add esi, [default_io_map] |
772 | mov ecx, 4096/4 |
772 | mov ecx, 4096/4 |
773 | ;cld ;caller is duty for this |
773 | ;cld ;caller is duty for this |
774 | rep movsd |
774 | rep movsd |
775 | jmp .exit |
775 | jmp .exit |
776 | endp |
776 | endp |
777 | 777 | ||
778 | ; returns number of mapped bytes |
778 | ; returns number of mapped bytes |
779 | proc map_mem stdcall, lin_addr:dword,slot:dword,\ |
779 | proc map_mem stdcall, lin_addr:dword,slot:dword,\ |
780 | ofs:dword,buf_size:dword,req_access:dword |
780 | ofs:dword,buf_size:dword,req_access:dword |
781 | push 0 ; initialize number of mapped bytes |
781 | push 0 ; initialize number of mapped bytes |
782 | 782 | ||
783 | cmp [buf_size], 0 |
783 | cmp [buf_size], 0 |
784 | jz .exit |
784 | jz .exit |
785 | 785 | ||
786 | mov eax, [slot] |
786 | mov eax, [slot] |
787 | shl eax, 8 |
787 | shl eax, 8 |
788 | mov eax, [SLOT_BASE+eax+APPDATA.dir_table] |
788 | mov eax, [SLOT_BASE+eax+APPDATA.dir_table] |
789 | and eax, 0xFFFFF000 |
789 | and eax, 0xFFFFF000 |
790 | 790 | ||
791 | stdcall map_page, [ipc_pdir], eax, PG_UW |
791 | stdcall map_page, [ipc_pdir], eax, PG_UW |
792 | mov ebx, [ofs] |
792 | mov ebx, [ofs] |
793 | shr ebx, 22 |
793 | shr ebx, 22 |
794 | mov esi, [ipc_pdir] |
794 | mov esi, [ipc_pdir] |
795 | mov edi, [ipc_ptab] |
795 | mov edi, [ipc_ptab] |
796 | mov eax, [esi+ebx*4] |
796 | mov eax, [esi+ebx*4] |
797 | and eax, 0xFFFFF000 |
797 | and eax, 0xFFFFF000 |
798 | jz .exit |
798 | jz .exit |
799 | stdcall map_page, edi, eax, PG_UW |
799 | stdcall map_page, edi, eax, PG_UW |
800 | ; inc ebx |
800 | ; inc ebx |
801 | ; add edi, 0x1000 |
801 | ; add edi, 0x1000 |
802 | ; mov eax, [esi+ebx*4] |
802 | ; mov eax, [esi+ebx*4] |
803 | ; test eax, eax |
803 | ; test eax, eax |
804 | ; jz @f |
804 | ; jz @f |
805 | ; and eax, 0xFFFFF000 |
805 | ; and eax, 0xFFFFF000 |
806 | ; stdcall map_page, edi, eax |
806 | ; stdcall map_page, edi, eax |
807 | 807 | ||
808 | @@: |
808 | @@: |
809 | mov edi, [lin_addr] |
809 | mov edi, [lin_addr] |
810 | and edi, 0xFFFFF000 |
810 | and edi, 0xFFFFF000 |
811 | mov ecx, [buf_size] |
811 | mov ecx, [buf_size] |
812 | add ecx, 4095 |
812 | add ecx, 4095 |
813 | shr ecx, 12 |
813 | shr ecx, 12 |
814 | inc ecx |
814 | inc ecx |
815 | 815 | ||
816 | mov edx, [ofs] |
816 | mov edx, [ofs] |
817 | shr edx, 12 |
817 | shr edx, 12 |
818 | and edx, 0x3FF |
818 | and edx, 0x3FF |
819 | mov esi, [ipc_ptab] |
819 | mov esi, [ipc_ptab] |
820 | 820 | ||
821 | .map: |
821 | .map: |
822 | stdcall safe_map_page, [slot], [req_access], [ofs] |
822 | stdcall safe_map_page, [slot], [req_access], [ofs] |
823 | jnc .exit |
823 | jnc .exit |
824 | add dword [ebp-4], 4096 |
824 | add dword [ebp-4], 4096 |
825 | add [ofs], 4096 |
825 | add [ofs], 4096 |
826 | dec ecx |
826 | dec ecx |
827 | jz .exit |
827 | jz .exit |
828 | add edi, 0x1000 |
828 | add edi, 0x1000 |
829 | inc edx |
829 | inc edx |
830 | cmp edx, 0x400 |
830 | cmp edx, 0x400 |
831 | jnz .map |
831 | jnz .map |
832 | inc ebx |
832 | inc ebx |
833 | mov eax, [ipc_pdir] |
833 | mov eax, [ipc_pdir] |
834 | mov eax, [eax+ebx*4] |
834 | mov eax, [eax+ebx*4] |
835 | and eax, 0xFFFFF000 |
835 | and eax, 0xFFFFF000 |
836 | jz .exit |
836 | jz .exit |
837 | stdcall map_page, esi, eax, PG_UW |
837 | stdcall map_page, esi, eax, PG_UW |
838 | xor edx, edx |
838 | xor edx, edx |
839 | jmp .map |
839 | jmp .map |
840 | 840 | ||
841 | .exit: |
841 | .exit: |
842 | pop eax |
842 | pop eax |
843 | ret |
843 | ret |
844 | endp |
844 | endp |
845 | 845 | ||
846 | proc map_memEx stdcall, lin_addr:dword,slot:dword,\ |
846 | proc map_memEx stdcall, lin_addr:dword,slot:dword,\ |
847 | ofs:dword,buf_size:dword,req_access:dword |
847 | ofs:dword,buf_size:dword,req_access:dword |
848 | push 0 ; initialize number of mapped bytes |
848 | push 0 ; initialize number of mapped bytes |
849 | 849 | ||
850 | cmp [buf_size], 0 |
850 | cmp [buf_size], 0 |
851 | jz .exit |
851 | jz .exit |
852 | 852 | ||
853 | mov eax, [slot] |
853 | mov eax, [slot] |
854 | shl eax, 8 |
854 | shl eax, 8 |
855 | mov eax, [SLOT_BASE+eax+APPDATA.dir_table] |
855 | mov eax, [SLOT_BASE+eax+APPDATA.dir_table] |
856 | and eax, 0xFFFFF000 |
856 | and eax, 0xFFFFF000 |
857 | 857 | ||
858 | stdcall map_page, [proc_mem_pdir], eax, PG_UW |
858 | stdcall map_page, [proc_mem_pdir], eax, PG_UW |
859 | mov ebx, [ofs] |
859 | mov ebx, [ofs] |
860 | shr ebx, 22 |
860 | shr ebx, 22 |
861 | mov esi, [proc_mem_pdir] |
861 | mov esi, [proc_mem_pdir] |
862 | mov edi, [proc_mem_tab] |
862 | mov edi, [proc_mem_tab] |
863 | mov eax, [esi+ebx*4] |
863 | mov eax, [esi+ebx*4] |
864 | and eax, 0xFFFFF000 |
864 | and eax, 0xFFFFF000 |
865 | test eax, eax |
865 | test eax, eax |
866 | jz .exit |
866 | jz .exit |
867 | stdcall map_page, edi, eax, PG_UW |
867 | stdcall map_page, edi, eax, PG_UW |
868 | 868 | ||
869 | @@: |
869 | @@: |
870 | mov edi, [lin_addr] |
870 | mov edi, [lin_addr] |
871 | and edi, 0xFFFFF000 |
871 | and edi, 0xFFFFF000 |
872 | mov ecx, [buf_size] |
872 | mov ecx, [buf_size] |
873 | add ecx, 4095 |
873 | add ecx, 4095 |
874 | shr ecx, 12 |
874 | shr ecx, 12 |
875 | inc ecx |
875 | inc ecx |
876 | 876 | ||
877 | mov edx, [ofs] |
877 | mov edx, [ofs] |
878 | shr edx, 12 |
878 | shr edx, 12 |
879 | and edx, 0x3FF |
879 | and edx, 0x3FF |
880 | mov esi, [proc_mem_tab] |
880 | mov esi, [proc_mem_tab] |
881 | 881 | ||
882 | .map: |
882 | .map: |
883 | stdcall safe_map_page, [slot], [req_access], [ofs] |
883 | stdcall safe_map_page, [slot], [req_access], [ofs] |
884 | jnc .exit |
884 | jnc .exit |
885 | add dword [ebp-4], 0x1000 |
885 | add dword [ebp-4], 0x1000 |
886 | add edi, 0x1000 |
886 | add edi, 0x1000 |
887 | add [ofs], 0x1000 |
887 | add [ofs], 0x1000 |
888 | inc edx |
888 | inc edx |
889 | dec ecx |
889 | dec ecx |
890 | jnz .map |
890 | jnz .map |
891 | .exit: |
891 | .exit: |
892 | pop eax |
892 | pop eax |
893 | ret |
893 | ret |
894 | endp |
894 | endp |
895 | 895 | ||
896 | ; in: esi+edx*4 = pointer to page table entry |
896 | ; in: esi+edx*4 = pointer to page table entry |
897 | ; in: [slot], [req_access], [ofs] on the stack |
897 | ; in: [slot], [req_access], [ofs] on the stack |
898 | ; in: edi = linear address to map |
898 | ; in: edi = linear address to map |
899 | ; out: CF cleared <=> failed |
899 | ; out: CF cleared <=> failed |
900 | ; destroys: only eax |
900 | ; destroys: only eax |
901 | proc safe_map_page stdcall, slot:dword, req_access:dword, ofs:dword |
901 | proc safe_map_page stdcall, slot:dword, req_access:dword, ofs:dword |
902 | mov eax, [esi+edx*4] |
902 | mov eax, [esi+edx*4] |
903 | test al, PG_MAP |
903 | test al, PG_MAP |
904 | jz .not_present |
904 | jz .not_present |
905 | test al, PG_WRITE |
905 | test al, PG_WRITE |
906 | jz .resolve_readonly |
906 | jz .resolve_readonly |
907 | ; normal case: writable page, just map with requested access |
907 | ; normal case: writable page, just map with requested access |
908 | .map: |
908 | .map: |
909 | stdcall map_page, edi, eax, [req_access] |
909 | stdcall map_page, edi, eax, [req_access] |
910 | stc |
910 | stc |
911 | .fail: |
911 | .fail: |
912 | ret |
912 | ret |
913 | .not_present: |
913 | .not_present: |
914 | ; check for alloc-on-demand page |
914 | ; check for alloc-on-demand page |
915 | test al, 2 |
915 | test al, 2 |
916 | jz .fail |
916 | jz .fail |
917 | ; allocate new page, save it to source page table |
917 | ; allocate new page, save it to source page table |
918 | push ecx |
918 | push ecx |
919 | call alloc_page |
919 | call alloc_page |
920 | pop ecx |
920 | pop ecx |
921 | test eax, eax |
921 | test eax, eax |
922 | jz .fail |
922 | jz .fail |
923 | or al, PG_UW |
923 | or al, PG_UW |
924 | mov [esi+edx*4], eax |
924 | mov [esi+edx*4], eax |
925 | jmp .map |
925 | jmp .map |
926 | .resolve_readonly: |
926 | .resolve_readonly: |
927 | ; readonly page, probably copy-on-write |
927 | ; readonly page, probably copy-on-write |
928 | ; check: readonly request of readonly page is ok |
928 | ; check: readonly request of readonly page is ok |
929 | test [req_access], PG_WRITE |
929 | test [req_access], PG_WRITE |
930 | jz .map |
930 | jz .map |
931 | ; find control structure for this page |
931 | ; find control structure for this page |
932 | pushf |
932 | pushf |
933 | cli |
933 | cli |
934 | cld |
934 | cld |
935 | push ebx ecx |
935 | push ebx ecx |
936 | mov eax, [slot] |
936 | mov eax, [slot] |
937 | shl eax, 8 |
937 | shl eax, 8 |
938 | mov eax, [SLOT_BASE+eax+APPDATA.dlls_list_ptr] |
938 | mov eax, [SLOT_BASE+eax+APPDATA.dlls_list_ptr] |
939 | test eax, eax |
939 | test eax, eax |
940 | jz .no_hdll |
940 | jz .no_hdll |
941 | mov ecx, [eax+HDLL.fd] |
941 | mov ecx, [eax+HDLL.fd] |
942 | .scan_hdll: |
942 | .scan_hdll: |
943 | cmp ecx, eax |
943 | cmp ecx, eax |
944 | jz .no_hdll |
944 | jz .no_hdll |
945 | mov ebx, [ofs] |
945 | mov ebx, [ofs] |
946 | and ebx, not 0xFFF |
946 | and ebx, not 0xFFF |
947 | sub ebx, [ecx+HDLL.base] |
947 | sub ebx, [ecx+HDLL.base] |
948 | cmp ebx, [ecx+HDLL.size] |
948 | cmp ebx, [ecx+HDLL.size] |
949 | jb .hdll_found |
949 | jb .hdll_found |
950 | mov ecx, [ecx+HDLL.fd] |
950 | mov ecx, [ecx+HDLL.fd] |
951 | jmp .scan_hdll |
951 | jmp .scan_hdll |
952 | .no_hdll: |
952 | .no_hdll: |
953 | pop ecx ebx |
953 | pop ecx ebx |
954 | popf |
954 | popf |
955 | clc |
955 | clc |
956 | ret |
956 | ret |
957 | .hdll_found: |
957 | .hdll_found: |
958 | ; allocate page, save it in page table, map it, copy contents from base |
958 | ; allocate page, save it in page table, map it, copy contents from base |
959 | mov eax, [ecx+HDLL.parent] |
959 | mov eax, [ecx+HDLL.parent] |
960 | add ebx, [eax+DLLDESCR.data] |
960 | add ebx, [eax+DLLDESCR.data] |
961 | call alloc_page |
961 | call alloc_page |
962 | test eax, eax |
962 | test eax, eax |
963 | jz .no_hdll |
963 | jz .no_hdll |
964 | or al, PG_UW |
964 | or al, PG_UW |
965 | mov [esi+edx*4], eax |
965 | mov [esi+edx*4], eax |
966 | stdcall map_page, edi, eax, [req_access] |
966 | stdcall map_page, edi, eax, [req_access] |
967 | push esi edi |
967 | push esi edi |
968 | mov esi, ebx |
968 | mov esi, ebx |
969 | mov ecx, 4096/4 |
969 | mov ecx, 4096/4 |
970 | rep movsd |
970 | rep movsd |
971 | pop edi esi |
971 | pop edi esi |
972 | pop ecx ebx |
972 | pop ecx ebx |
973 | popf |
973 | popf |
974 | stc |
974 | stc |
975 | ret |
975 | ret |
976 | endp |
976 | endp |
977 | 977 | ||
978 | sys_IPC: |
978 | sys_IPC: |
979 | ;input: |
979 | ;input: |
980 | ; ebx=1 - set ipc buffer area |
980 | ; ebx=1 - set ipc buffer area |
981 | ; ecx=address of buffer |
981 | ; ecx=address of buffer |
982 | ; edx=size of buffer |
982 | ; edx=size of buffer |
983 | ; eax=2 - send message |
983 | ; eax=2 - send message |
984 | ; ebx=PID |
984 | ; ebx=PID |
985 | ; ecx=address of message |
985 | ; ecx=address of message |
986 | ; edx=size of message |
986 | ; edx=size of message |
987 | 987 | ||
988 | dec ebx |
988 | dec ebx |
989 | jnz @f |
989 | jnz @f |
990 | 990 | ||
991 | mov eax, [current_slot] |
991 | mov eax, [current_slot] |
992 | pushf |
992 | pushf |
993 | cli |
993 | cli |
994 | mov [eax+APPDATA.ipc_start], ecx ;set fields in extended information area |
994 | mov [eax+APPDATA.ipc_start], ecx ;set fields in extended information area |
995 | mov [eax+APPDATA.ipc_size], edx |
995 | mov [eax+APPDATA.ipc_size], edx |
996 | 996 | ||
997 | add edx, ecx |
997 | add edx, ecx |
998 | add edx, 4095 |
998 | add edx, 4095 |
999 | and edx, not 4095 |
999 | and edx, not 4095 |
1000 | 1000 | ||
1001 | .touch: |
1001 | .touch: |
1002 | mov eax, [ecx] |
1002 | mov eax, [ecx] |
1003 | add ecx, 0x1000 |
1003 | add ecx, 0x1000 |
1004 | cmp ecx, edx |
1004 | cmp ecx, edx |
1005 | jb .touch |
1005 | jb .touch |
1006 | 1006 | ||
1007 | popf |
1007 | popf |
1008 | mov [esp+32], ebx ;ebx=0 |
1008 | mov [esp+32], ebx ;ebx=0 |
1009 | ret |
1009 | ret |
1010 | 1010 | ||
1011 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1011 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1012 | ;2 |
1012 | ;2 |
1013 | @@: |
1013 | @@: |
1014 | dec ebx |
1014 | dec ebx |
1015 | jnz @f |
1015 | jnz @f |
1016 | 1016 | ||
1017 | stdcall sys_ipc_send, ecx, edx, esi |
1017 | stdcall sys_ipc_send, ecx, edx, esi |
1018 | mov [esp+32], eax |
1018 | mov [esp+32], eax |
1019 | ret |
1019 | ret |
1020 | @@: |
1020 | @@: |
1021 | or eax, -1 |
1021 | or eax, -1 |
1022 | mov [esp+32], eax |
1022 | mov [esp+32], eax |
1023 | ret |
1023 | ret |
1024 | 1024 | ||
1025 | ;align 4 |
1025 | ;align 4 |
1026 | ;proc set_ipc_buff |
1026 | ;proc set_ipc_buff |
1027 | 1027 | ||
1028 | ; mov eax,[current_slot] |
1028 | ; mov eax,[current_slot] |
1029 | ; pushf |
1029 | ; pushf |
1030 | ; cli |
1030 | ; cli |
1031 | ; mov [eax+APPDATA.ipc_start],ebx ;set fields in extended information area |
1031 | ; mov [eax+APPDATA.ipc_start],ebx ;set fields in extended information area |
1032 | ; mov [eax+APPDATA.ipc_size],ecx |
1032 | ; mov [eax+APPDATA.ipc_size],ecx |
1033 | ; |
1033 | ; |
1034 | ; add ecx, ebx |
1034 | ; add ecx, ebx |
1035 | ; add ecx, 4095 |
1035 | ; add ecx, 4095 |
1036 | ; and ecx, not 4095 |
1036 | ; and ecx, not 4095 |
1037 | ; |
1037 | ; |
1038 | ;.touch: mov eax, [ebx] |
1038 | ;.touch: mov eax, [ebx] |
1039 | ; add ebx, 0x1000 |
1039 | ; add ebx, 0x1000 |
1040 | ; cmp ebx, ecx |
1040 | ; cmp ebx, ecx |
1041 | ; jb .touch |
1041 | ; jb .touch |
1042 | ; |
1042 | ; |
1043 | ; popf |
1043 | ; popf |
1044 | ; xor eax, eax |
1044 | ; xor eax, eax |
1045 | ; ret |
1045 | ; ret |
1046 | ;endp |
1046 | ;endp |
1047 | 1047 | ||
1048 | proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword |
1048 | proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword |
1049 | locals |
1049 | locals |
1050 | dst_slot dd ? |
1050 | dst_slot dd ? |
1051 | dst_offset dd ? |
1051 | dst_offset dd ? |
1052 | buf_size dd ? |
1052 | buf_size dd ? |
1053 | used_buf dd ? |
1053 | used_buf dd ? |
1054 | endl |
1054 | endl |
1055 | 1055 | ||
1056 | pushf |
1056 | pushf |
1057 | cli |
1057 | cli |
1058 | 1058 | ||
1059 | mov eax, [PID] |
1059 | mov eax, [PID] |
1060 | call pid_to_slot |
1060 | call pid_to_slot |
1061 | test eax, eax |
1061 | test eax, eax |
1062 | jz .no_pid |
1062 | jz .no_pid |
1063 | 1063 | ||
1064 | mov [dst_slot], eax |
1064 | mov [dst_slot], eax |
1065 | shl eax, 8 |
1065 | shl eax, 8 |
1066 | mov edi, [eax+SLOT_BASE+0xa0] ;is ipc area defined? |
1066 | mov edi, [eax+SLOT_BASE+0xa0] ;is ipc area defined? |
1067 | test edi, edi |
1067 | test edi, edi |
1068 | jz .no_ipc_area |
1068 | jz .no_ipc_area |
1069 | 1069 | ||
1070 | mov ebx, edi |
1070 | mov ebx, edi |
1071 | and ebx, 0xFFF |
1071 | and ebx, 0xFFF |
1072 | mov [dst_offset], ebx |
1072 | mov [dst_offset], ebx |
1073 | 1073 | ||
1074 | mov esi, [eax+SLOT_BASE+0xa4] |
1074 | mov esi, [eax+SLOT_BASE+0xa4] |
1075 | mov [buf_size], esi |
1075 | mov [buf_size], esi |
1076 | 1076 | ||
1077 | mov ecx, [ipc_tmp] |
1077 | mov ecx, [ipc_tmp] |
1078 | cmp esi, 0x40000-0x1000; size of [ipc_tmp] minus one page |
1078 | cmp esi, 0x40000-0x1000; size of [ipc_tmp] minus one page |
1079 | jbe @f |
1079 | jbe @f |
1080 | push esi edi |
1080 | push esi edi |
1081 | add esi, 0x1000 |
1081 | add esi, 0x1000 |
1082 | stdcall alloc_kernel_space, esi |
1082 | stdcall alloc_kernel_space, esi |
1083 | mov ecx, eax |
1083 | mov ecx, eax |
1084 | pop edi esi |
1084 | pop edi esi |
1085 | @@: |
1085 | @@: |
1086 | mov [used_buf], ecx |
1086 | mov [used_buf], ecx |
1087 | stdcall map_mem, ecx, [dst_slot], \ |
1087 | stdcall map_mem, ecx, [dst_slot], \ |
1088 | edi, esi, PG_SW |
1088 | edi, esi, PG_SW |
1089 | 1089 | ||
1090 | mov edi, [dst_offset] |
1090 | mov edi, [dst_offset] |
1091 | add edi, [used_buf] |
1091 | add edi, [used_buf] |
1092 | cmp dword [edi], 0 |
1092 | cmp dword [edi], 0 |
1093 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
1093 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
1094 | 1094 | ||
1095 | mov edx, dword [edi+4] |
1095 | mov edx, dword [edi+4] |
1096 | lea ebx, [edx+8] |
1096 | lea ebx, [edx+8] |
1097 | add ebx, [msg_size] |
1097 | add ebx, [msg_size] |
1098 | cmp ebx, [buf_size] |
1098 | cmp ebx, [buf_size] |
1099 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
1099 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
1100 | 1100 | ||
1101 | mov dword [edi+4], ebx |
1101 | mov dword [edi+4], ebx |
1102 | mov eax, [TASK_BASE] |
1102 | mov eax, [TASK_BASE] |
1103 | mov eax, [eax+0x04] ;eax - our PID |
1103 | mov eax, [eax+0x04] ;eax - our PID |
1104 | add edi, edx |
1104 | add edi, edx |
1105 | mov [edi], eax |
1105 | mov [edi], eax |
1106 | mov ecx, [msg_size] |
1106 | mov ecx, [msg_size] |
1107 | 1107 | ||
1108 | mov [edi+4], ecx |
1108 | mov [edi+4], ecx |
1109 | add edi, 8 |
1109 | add edi, 8 |
1110 | mov esi, [msg_addr] |
1110 | mov esi, [msg_addr] |
1111 | ; add esi, new_app_base |
1111 | ; add esi, new_app_base |
1112 | cld |
1112 | cld |
1113 | rep movsb |
1113 | rep movsb |
1114 | 1114 | ||
1115 | mov ebx, [ipc_tmp] |
1115 | mov ebx, [ipc_tmp] |
1116 | mov edx, ebx |
1116 | mov edx, ebx |
1117 | shr ebx, 12 |
1117 | shr ebx, 12 |
1118 | xor eax, eax |
1118 | xor eax, eax |
1119 | mov [page_tabs+ebx*4], eax |
1119 | mov [page_tabs+ebx*4], eax |
1120 | invlpg [edx] |
1120 | invlpg [edx] |
1121 | 1121 | ||
1122 | mov ebx, [ipc_pdir] |
1122 | mov ebx, [ipc_pdir] |
1123 | mov edx, ebx |
1123 | mov edx, ebx |
1124 | shr ebx, 12 |
1124 | shr ebx, 12 |
1125 | xor eax, eax |
1125 | xor eax, eax |
1126 | mov [page_tabs+ebx*4], eax |
1126 | mov [page_tabs+ebx*4], eax |
1127 | invlpg [edx] |
1127 | invlpg [edx] |
1128 | 1128 | ||
1129 | mov ebx, [ipc_ptab] |
1129 | mov ebx, [ipc_ptab] |
1130 | mov edx, ebx |
1130 | mov edx, ebx |
1131 | shr ebx, 12 |
1131 | shr ebx, 12 |
1132 | xor eax, eax |
1132 | xor eax, eax |
1133 | mov [page_tabs+ebx*4], eax |
1133 | mov [page_tabs+ebx*4], eax |
1134 | invlpg [edx] |
1134 | invlpg [edx] |
1135 | 1135 | ||
1136 | mov eax, [dst_slot] |
1136 | mov eax, [dst_slot] |
1137 | shl eax, 8 |
1137 | shl eax, 8 |
1138 | or [eax+SLOT_BASE+0xA8], dword 0x40 |
1138 | or [eax+SLOT_BASE+0xA8], dword 0x40 |
1139 | cmp dword [check_idle_semaphore], 20 |
- | |
1140 | jge .ipc_no_cis |
- | |
1141 | - | ||
1142 | mov dword [check_idle_semaphore], 5 |
- | |
1143 | .ipc_no_cis: |
- | |
1144 | push 0 |
1139 | push 0 |
1145 | jmp .ret |
1140 | jmp .ret |
1146 | .no_pid: |
1141 | .no_pid: |
1147 | popf |
1142 | popf |
1148 | mov eax, 4 |
1143 | mov eax, 4 |
1149 | ret |
1144 | ret |
1150 | .no_ipc_area: |
1145 | .no_ipc_area: |
1151 | popf |
1146 | popf |
1152 | xor eax, eax |
1147 | xor eax, eax |
1153 | inc eax |
1148 | inc eax |
1154 | ret |
1149 | ret |
1155 | .ipc_blocked: |
1150 | .ipc_blocked: |
1156 | push 2 |
1151 | push 2 |
1157 | jmp .ret |
1152 | jmp .ret |
1158 | .buffer_overflow: |
1153 | .buffer_overflow: |
1159 | push 3 |
1154 | push 3 |
1160 | .ret: |
1155 | .ret: |
1161 | mov eax, [used_buf] |
1156 | mov eax, [used_buf] |
1162 | cmp eax, [ipc_tmp] |
1157 | cmp eax, [ipc_tmp] |
1163 | jz @f |
1158 | jz @f |
1164 | stdcall free_kernel_space, eax |
1159 | stdcall free_kernel_space, eax |
1165 | @@: |
1160 | @@: |
1166 | pop eax |
1161 | pop eax |
1167 | popf |
1162 | popf |
1168 | ret |
1163 | ret |
1169 | endp |
1164 | endp |
1170 | 1165 | ||
1171 | align 4 |
1166 | align 4 |
1172 | sysfn_meminfo: |
1167 | sysfn_meminfo: |
1173 | 1168 | ||
1174 | ; add ecx, new_app_base |
1169 | ; add ecx, new_app_base |
1175 | cmp ecx, OS_BASE |
1170 | cmp ecx, OS_BASE |
1176 | jae .fail |
1171 | jae .fail |
1177 | 1172 | ||
1178 | mov eax, [pg_data.pages_count] |
1173 | mov eax, [pg_data.pages_count] |
1179 | mov [ecx], eax |
1174 | mov [ecx], eax |
1180 | shl eax, 12 |
1175 | shl eax, 12 |
1181 | mov [esp+32], eax |
1176 | mov [esp+32], eax |
1182 | mov eax, [pg_data.pages_free] |
1177 | mov eax, [pg_data.pages_free] |
1183 | mov [ecx+4], eax |
1178 | mov [ecx+4], eax |
1184 | mov eax, [pg_data.pages_faults] |
1179 | mov eax, [pg_data.pages_faults] |
1185 | mov [ecx+8], eax |
1180 | mov [ecx+8], eax |
1186 | mov eax, [heap_size] |
1181 | mov eax, [heap_size] |
1187 | mov [ecx+12], eax |
1182 | mov [ecx+12], eax |
1188 | mov eax, [heap_free] |
1183 | mov eax, [heap_free] |
1189 | mov [ecx+16], eax |
1184 | mov [ecx+16], eax |
1190 | mov eax, [heap_blocks] |
1185 | mov eax, [heap_blocks] |
1191 | mov [ecx+20], eax |
1186 | mov [ecx+20], eax |
1192 | mov eax, [free_blocks] |
1187 | mov eax, [free_blocks] |
1193 | mov [ecx+24], eax |
1188 | mov [ecx+24], eax |
1194 | ret |
1189 | ret |
1195 | .fail: |
1190 | .fail: |
1196 | or dword [esp+32], -1 |
1191 | or dword [esp+32], -1 |
1197 | ret |
1192 | ret |
1198 | 1193 | ||
1199 | align 4 |
1194 | align 4 |
1200 | f68: |
1195 | f68: |
1201 | cmp ebx, 4 |
1196 | cmp ebx, 4 |
1202 | jbe sys_sheduler |
1197 | jbe sys_sheduler |
1203 | 1198 | ||
1204 | cmp ebx, 11 |
1199 | cmp ebx, 11 |
1205 | jb .fail |
1200 | jb .fail |
1206 | 1201 | ||
1207 | cmp ebx, 25 |
1202 | cmp ebx, 25 |
1208 | ja .fail |
1203 | ja .fail |
1209 | 1204 | ||
1210 | jmp dword [f68call+ebx*4-11*4] |
1205 | jmp dword [f68call+ebx*4-11*4] |
1211 | .11: |
1206 | .11: |
1212 | call init_heap |
1207 | call init_heap |
1213 | mov [esp+32], eax |
1208 | mov [esp+32], eax |
1214 | ret |
1209 | ret |
1215 | .12: |
1210 | .12: |
1216 | stdcall user_alloc, ecx |
1211 | stdcall user_alloc, ecx |
1217 | mov [esp+32], eax |
1212 | mov [esp+32], eax |
1218 | ret |
1213 | ret |
1219 | .13: |
1214 | .13: |
1220 | stdcall user_free, ecx |
1215 | stdcall user_free, ecx |
1221 | mov [esp+32], eax |
1216 | mov [esp+32], eax |
1222 | ret |
1217 | ret |
1223 | .14: |
1218 | .14: |
1224 | cmp ecx, OS_BASE |
1219 | cmp ecx, OS_BASE |
1225 | jae .fail |
1220 | jae .fail |
1226 | mov edi, ecx |
1221 | mov edi, ecx |
1227 | call get_event_ex |
1222 | call get_event_ex |
1228 | mov [esp+32], eax |
1223 | mov [esp+32], eax |
1229 | ret |
1224 | ret |
1230 | .16: |
1225 | .16: |
1231 | test ecx, ecx |
1226 | test ecx, ecx |
1232 | jz .fail |
1227 | jz .fail |
1233 | cmp ecx, OS_BASE |
1228 | cmp ecx, OS_BASE |
1234 | jae .fail |
1229 | jae .fail |
1235 | stdcall get_service, ecx |
1230 | stdcall get_service, ecx |
1236 | mov [esp+32], eax |
1231 | mov [esp+32], eax |
1237 | ret |
1232 | ret |
1238 | .17: |
1233 | .17: |
1239 | call srv_handlerEx ;ecx |
1234 | call srv_handlerEx ;ecx |
1240 | mov [esp+32], eax |
1235 | mov [esp+32], eax |
1241 | ret |
1236 | ret |
1242 | .19: |
1237 | .19: |
1243 | cmp ecx, OS_BASE |
1238 | cmp ecx, OS_BASE |
1244 | jae .fail |
1239 | jae .fail |
1245 | stdcall load_library, ecx |
1240 | stdcall load_library, ecx |
1246 | mov [esp+32], eax |
1241 | mov [esp+32], eax |
1247 | ret |
1242 | ret |
1248 | .20: |
1243 | .20: |
1249 | mov eax, edx |
1244 | mov eax, edx |
1250 | mov ebx, ecx |
1245 | mov ebx, ecx |
1251 | call user_realloc ;in: eax = pointer, ebx = new size |
1246 | call user_realloc ;in: eax = pointer, ebx = new size |
1252 | mov [esp+32], eax |
1247 | mov [esp+32], eax |
1253 | ret |
1248 | ret |
1254 | .21: |
1249 | .21: |
1255 | cmp ecx, OS_BASE |
1250 | cmp ecx, OS_BASE |
1256 | jae .fail |
1251 | jae .fail |
1257 | 1252 | ||
1258 | cmp edx, OS_BASE |
1253 | cmp edx, OS_BASE |
1259 | jae .fail |
1254 | jae .fail |
1260 | 1255 | ||
1261 | mov edi, edx |
1256 | mov edi, edx |
1262 | stdcall load_PE, ecx |
1257 | stdcall load_PE, ecx |
1263 | mov esi, eax |
1258 | mov esi, eax |
1264 | test eax, eax |
1259 | test eax, eax |
1265 | jz @F |
1260 | jz @F |
1266 | 1261 | ||
1267 | push edi |
1262 | push edi |
1268 | push DRV_ENTRY |
1263 | push DRV_ENTRY |
1269 | call eax |
1264 | call eax |
1270 | add esp, 8 |
1265 | add esp, 8 |
1271 | test eax, eax |
1266 | test eax, eax |
1272 | jz @F |
1267 | jz @F |
1273 | 1268 | ||
1274 | mov [eax+SRV.entry], esi |
1269 | mov [eax+SRV.entry], esi |
1275 | 1270 | ||
1276 | @@: |
1271 | @@: |
1277 | mov [esp+32], eax |
1272 | mov [esp+32], eax |
1278 | ret |
1273 | ret |
1279 | .22: |
1274 | .22: |
1280 | cmp ecx, OS_BASE |
1275 | cmp ecx, OS_BASE |
1281 | jae .fail |
1276 | jae .fail |
1282 | 1277 | ||
1283 | stdcall shmem_open, ecx, edx, esi |
1278 | stdcall shmem_open, ecx, edx, esi |
1284 | mov [esp+24], edx |
1279 | mov [esp+24], edx |
1285 | mov [esp+32], eax |
1280 | mov [esp+32], eax |
1286 | ret |
1281 | ret |
1287 | 1282 | ||
1288 | .23: |
1283 | .23: |
1289 | cmp ecx, OS_BASE |
1284 | cmp ecx, OS_BASE |
1290 | jae .fail |
1285 | jae .fail |
1291 | 1286 | ||
1292 | stdcall shmem_close, ecx |
1287 | stdcall shmem_close, ecx |
1293 | mov [esp+32], eax |
1288 | mov [esp+32], eax |
1294 | ret |
1289 | ret |
1295 | .24: |
1290 | .24: |
1296 | mov eax, [current_slot] |
1291 | mov eax, [current_slot] |
1297 | xchg ecx, [eax+APPDATA.exc_handler] |
1292 | xchg ecx, [eax+APPDATA.exc_handler] |
1298 | xchg edx, [eax+APPDATA.except_mask] |
1293 | xchg edx, [eax+APPDATA.except_mask] |
1299 | mov [esp+32], ecx ; reg_eax+8 |
1294 | mov [esp+32], ecx ; reg_eax+8 |
1300 | mov [esp+20], edx ; reg_ebx+8 |
1295 | mov [esp+20], edx ; reg_ebx+8 |
1301 | ret |
1296 | ret |
1302 | .25: |
1297 | .25: |
1303 | cmp ecx, 32 |
1298 | cmp ecx, 32 |
1304 | jae .fail |
1299 | jae .fail |
1305 | mov eax, [current_slot] |
1300 | mov eax, [current_slot] |
1306 | btr [eax+APPDATA.except_mask], ecx |
1301 | btr [eax+APPDATA.except_mask], ecx |
1307 | setc byte[esp+32] |
1302 | setc byte[esp+32] |
1308 | jecxz @f |
1303 | jecxz @f |
1309 | bts [eax+APPDATA.except_mask], ecx |
1304 | bts [eax+APPDATA.except_mask], ecx |
1310 | @@: |
1305 | @@: |
1311 | ret |
1306 | ret |
1312 | 1307 | ||
1313 | .26: |
1308 | .26: |
1314 | stdcall user_unmap, ecx, edx, esi |
1309 | stdcall user_unmap, ecx, edx, esi |
1315 | mov [esp+32], eax |
1310 | mov [esp+32], eax |
1316 | ret |
1311 | ret |
1317 | 1312 | ||
1318 | .fail: |
1313 | .fail: |
1319 | xor eax, eax |
1314 | xor eax, eax |
1320 | mov [esp+32], eax |
1315 | mov [esp+32], eax |
1321 | ret |
1316 | ret |
1322 | 1317 | ||
1323 | 1318 | ||
1324 | align 4 |
1319 | align 4 |
1325 | f68call: ; keep this table closer to main code |
1320 | f68call: ; keep this table closer to main code |
1326 | 1321 | ||
1327 | dd f68.11 ; init_heap |
1322 | dd f68.11 ; init_heap |
1328 | dd f68.12 ; user_alloc |
1323 | dd f68.12 ; user_alloc |
1329 | dd f68.13 ; user_free |
1324 | dd f68.13 ; user_free |
1330 | dd f68.14 ; get_event_ex |
1325 | dd f68.14 ; get_event_ex |
1331 | dd f68.fail ; moved to f68.24 |
1326 | dd f68.fail ; moved to f68.24 |
1332 | dd f68.16 ; get_service |
1327 | dd f68.16 ; get_service |
1333 | dd f68.17 ; call_service |
1328 | dd f68.17 ; call_service |
1334 | dd f68.fail ; moved to f68.25 |
1329 | dd f68.fail ; moved to f68.25 |
1335 | dd f68.19 ; load_dll |
1330 | dd f68.19 ; load_dll |
1336 | dd f68.20 ; user_realloc |
1331 | dd f68.20 ; user_realloc |
1337 | dd f68.21 ; load_driver |
1332 | dd f68.21 ; load_driver |
1338 | dd f68.22 ; shmem_open |
1333 | dd f68.22 ; shmem_open |
1339 | dd f68.23 ; shmem_close |
1334 | dd f68.23 ; shmem_close |
1340 | dd f68.24 ; set exception handler |
1335 | dd f68.24 ; set exception handler |
1341 | dd f68.25 ; unmask exception |
1336 | dd f68.25 ; unmask exception |
1342 | dd f68.26 ; user_unmap |
1337 | dd f68.26 ; user_unmap |
1343 | 1338 | ||
1344 | 1339 | ||
1345 | align 4 |
1340 | align 4 |
1346 | proc load_pe_driver stdcall, file:dword |
1341 | proc load_pe_driver stdcall, file:dword |
1347 | 1342 | ||
1348 | stdcall load_PE, [file] |
1343 | stdcall load_PE, [file] |
1349 | test eax, eax |
1344 | test eax, eax |
1350 | jz .fail |
1345 | jz .fail |
1351 | 1346 | ||
1352 | mov esi, eax |
1347 | mov esi, eax |
1353 | stdcall eax, DRV_ENTRY |
1348 | stdcall eax, DRV_ENTRY |
1354 | test eax, eax |
1349 | test eax, eax |
1355 | jz .fail |
1350 | jz .fail |
1356 | 1351 | ||
1357 | mov [eax+SRV.entry], esi |
1352 | mov [eax+SRV.entry], esi |
1358 | ret |
1353 | ret |
1359 | 1354 | ||
1360 | .fail: |
1355 | .fail: |
1361 | xor eax, eax |
1356 | xor eax, eax |
1362 | ret |
1357 | ret |
1363 | endp |
1358 | endp |
1364 | 1359 | ||
1365 | 1360 | ||
1366 | align 4 |
1361 | align 4 |
1367 | proc init_mtrr |
1362 | proc init_mtrr |
1368 | 1363 | ||
1369 | cmp [BOOT_VAR+BOOT_MTRR], byte 2 |
1364 | cmp [BOOT_VAR+BOOT_MTRR], byte 2 |
1370 | je .exit |
1365 | je .exit |
1371 | 1366 | ||
1372 | bt [cpu_caps], CAPS_MTRR |
1367 | bt [cpu_caps], CAPS_MTRR |
1373 | jnc .exit |
1368 | jnc .exit |
1374 | 1369 | ||
1375 | mov eax, cr0 |
1370 | mov eax, cr0 |
1376 | or eax, 0x60000000 ;disable caching |
1371 | or eax, 0x60000000 ;disable caching |
1377 | mov cr0, eax |
1372 | mov cr0, eax |
1378 | wbinvd ;invalidate cache |
1373 | wbinvd ;invalidate cache |
1379 | 1374 | ||
1380 | mov ecx, 0x2FF |
1375 | mov ecx, 0x2FF |
1381 | rdmsr ; |
1376 | rdmsr ; |
1382 | ; has BIOS already initialized MTRRs? |
1377 | ; has BIOS already initialized MTRRs? |
1383 | test ah, 8 |
1378 | test ah, 8 |
1384 | jnz .skip_init |
1379 | jnz .skip_init |
1385 | ; rarely needed, so mainly placeholder |
1380 | ; rarely needed, so mainly placeholder |
1386 | ; main memory - cached |
1381 | ; main memory - cached |
1387 | push eax |
1382 | push eax |
1388 | 1383 | ||
1389 | mov eax, [MEM_AMOUNT] |
1384 | mov eax, [MEM_AMOUNT] |
1390 | ; round eax up to next power of 2 |
1385 | ; round eax up to next power of 2 |
1391 | dec eax |
1386 | dec eax |
1392 | bsr ecx, eax |
1387 | bsr ecx, eax |
1393 | mov ebx, 2 |
1388 | mov ebx, 2 |
1394 | shl ebx, cl |
1389 | shl ebx, cl |
1395 | dec ebx |
1390 | dec ebx |
1396 | ; base of memory range = 0, type of memory range = MEM_WB |
1391 | ; base of memory range = 0, type of memory range = MEM_WB |
1397 | xor edx, edx |
1392 | xor edx, edx |
1398 | mov eax, MEM_WB |
1393 | mov eax, MEM_WB |
1399 | mov ecx, 0x200 |
1394 | mov ecx, 0x200 |
1400 | wrmsr |
1395 | wrmsr |
1401 | ; mask of memory range = 0xFFFFFFFFF - (size - 1), ebx = size - 1 |
1396 | ; mask of memory range = 0xFFFFFFFFF - (size - 1), ebx = size - 1 |
1402 | mov eax, 0xFFFFFFFF |
1397 | mov eax, 0xFFFFFFFF |
1403 | mov edx, 0x0000000F |
1398 | mov edx, 0x0000000F |
1404 | sub eax, ebx |
1399 | sub eax, ebx |
1405 | sbb edx, 0 |
1400 | sbb edx, 0 |
1406 | or eax, 0x800 |
1401 | or eax, 0x800 |
1407 | inc ecx |
1402 | inc ecx |
1408 | wrmsr |
1403 | wrmsr |
1409 | ; clear unused MTRRs |
1404 | ; clear unused MTRRs |
1410 | xor eax, eax |
1405 | xor eax, eax |
1411 | xor edx, edx |
1406 | xor edx, edx |
1412 | @@: |
1407 | @@: |
1413 | wrmsr |
1408 | wrmsr |
1414 | inc ecx |
1409 | inc ecx |
1415 | cmp ecx, 0x210 |
1410 | cmp ecx, 0x210 |
1416 | jb @b |
1411 | jb @b |
1417 | ; enable MTRRs |
1412 | ; enable MTRRs |
1418 | pop eax |
1413 | pop eax |
1419 | or ah, 8 |
1414 | or ah, 8 |
1420 | and al, 0xF0; default memtype = UC |
1415 | and al, 0xF0; default memtype = UC |
1421 | mov ecx, 0x2FF |
1416 | mov ecx, 0x2FF |
1422 | wrmsr |
1417 | wrmsr |
1423 | .skip_init: |
1418 | .skip_init: |
1424 | stdcall set_mtrr, [LFBAddress], [LFBSize], MEM_WC |
1419 | stdcall set_mtrr, [LFBAddress], [LFBSize], MEM_WC |
1425 | 1420 | ||
1426 | wbinvd ;again invalidate |
1421 | wbinvd ;again invalidate |
1427 | 1422 | ||
1428 | mov eax, cr0 |
1423 | mov eax, cr0 |
1429 | and eax, not 0x60000000 |
1424 | and eax, not 0x60000000 |
1430 | mov cr0, eax ; enable caching |
1425 | mov cr0, eax ; enable caching |
1431 | .exit: |
1426 | .exit: |
1432 | ret |
1427 | ret |
1433 | endp |
1428 | endp |
1434 | 1429 | ||
1435 | align 4 |
1430 | align 4 |
1436 | proc set_mtrr stdcall, base:dword,size:dword,mem_type:dword |
1431 | proc set_mtrr stdcall, base:dword,size:dword,mem_type:dword |
1437 | ; find unused register |
1432 | ; find unused register |
1438 | mov ecx, 0x201 |
1433 | mov ecx, 0x201 |
1439 | @@: |
1434 | @@: |
1440 | rdmsr |
1435 | rdmsr |
1441 | dec ecx |
1436 | dec ecx |
1442 | test ah, 8 |
1437 | test ah, 8 |
1443 | jz .found |
1438 | jz .found |
1444 | rdmsr |
1439 | rdmsr |
1445 | mov al, 0; clear memory type field |
1440 | mov al, 0; clear memory type field |
1446 | cmp eax, [base] |
1441 | cmp eax, [base] |
1447 | jz .ret |
1442 | jz .ret |
1448 | add ecx, 3 |
1443 | add ecx, 3 |
1449 | cmp ecx, 0x210 |
1444 | cmp ecx, 0x210 |
1450 | jb @b |
1445 | jb @b |
1451 | ; no free registers, ignore the call |
1446 | ; no free registers, ignore the call |
1452 | .ret: |
1447 | .ret: |
1453 | ret |
1448 | ret |
1454 | .found: |
1449 | .found: |
1455 | ; found, write values |
1450 | ; found, write values |
1456 | xor edx, edx |
1451 | xor edx, edx |
1457 | mov eax, [base] |
1452 | mov eax, [base] |
1458 | or eax, [mem_type] |
1453 | or eax, [mem_type] |
1459 | wrmsr |
1454 | wrmsr |
1460 | 1455 | ||
1461 | mov ebx, [size] |
1456 | mov ebx, [size] |
1462 | dec ebx |
1457 | dec ebx |
1463 | mov eax, 0xFFFFFFFF |
1458 | mov eax, 0xFFFFFFFF |
1464 | mov edx, 0x00000000 |
1459 | mov edx, 0x00000000 |
1465 | sub eax, ebx |
1460 | sub eax, ebx |
1466 | sbb edx, 0 |
1461 | sbb edx, 0 |
1467 | or eax, 0x800 |
1462 | or eax, 0x800 |
1468 | inc ecx |
1463 | inc ecx |
1469 | wrmsr |
1464 | wrmsr |
1470 | ret |
1465 | ret |
1471 | endp |
1466 | endp |
1472 | 1467 | ||
1473 | align 4 |
1468 | align 4 |
1474 | proc create_ring_buffer stdcall, size:dword, flags:dword |
1469 | proc create_ring_buffer stdcall, size:dword, flags:dword |
1475 | locals |
1470 | locals |
1476 | buf_ptr dd ? |
1471 | buf_ptr dd ? |
1477 | endl |
1472 | endl |
1478 | 1473 | ||
1479 | mov eax, [size] |
1474 | mov eax, [size] |
1480 | test eax, eax |
1475 | test eax, eax |
1481 | jz .fail |
1476 | jz .fail |
1482 | 1477 | ||
1483 | add eax, eax |
1478 | add eax, eax |
1484 | stdcall alloc_kernel_space, eax |
1479 | stdcall alloc_kernel_space, eax |
1485 | test eax, eax |
1480 | test eax, eax |
1486 | jz .fail |
1481 | jz .fail |
1487 | 1482 | ||
1488 | push ebx |
1483 | push ebx |
1489 | 1484 | ||
1490 | mov [buf_ptr], eax |
1485 | mov [buf_ptr], eax |
1491 | 1486 | ||
1492 | mov ebx, [size] |
1487 | mov ebx, [size] |
1493 | shr ebx, 12 |
1488 | shr ebx, 12 |
1494 | push ebx |
1489 | push ebx |
1495 | 1490 | ||
1496 | stdcall alloc_pages, ebx |
1491 | stdcall alloc_pages, ebx |
1497 | pop ecx |
1492 | pop ecx |
1498 | 1493 | ||
1499 | test eax, eax |
1494 | test eax, eax |
1500 | jz .mm_fail |
1495 | jz .mm_fail |
1501 | 1496 | ||
1502 | push edi |
1497 | push edi |
1503 | 1498 | ||
1504 | or eax, [flags] |
1499 | or eax, [flags] |
1505 | mov edi, [buf_ptr] |
1500 | mov edi, [buf_ptr] |
1506 | mov ebx, [buf_ptr] |
1501 | mov ebx, [buf_ptr] |
1507 | mov edx, ecx |
1502 | mov edx, ecx |
1508 | shl edx, 2 |
1503 | shl edx, 2 |
1509 | shr edi, 10 |
1504 | shr edi, 10 |
1510 | @@: |
1505 | @@: |
1511 | mov [page_tabs+edi], eax |
1506 | mov [page_tabs+edi], eax |
1512 | mov [page_tabs+edi+edx], eax |
1507 | mov [page_tabs+edi+edx], eax |
1513 | invlpg [ebx] |
1508 | invlpg [ebx] |
1514 | invlpg [ebx+0x10000] |
1509 | invlpg [ebx+0x10000] |
1515 | add eax, 0x1000 |
1510 | add eax, 0x1000 |
1516 | add ebx, 0x1000 |
1511 | add ebx, 0x1000 |
1517 | add edi, 4 |
1512 | add edi, 4 |
1518 | dec ecx |
1513 | dec ecx |
1519 | jnz @B |
1514 | jnz @B |
1520 | 1515 | ||
1521 | mov eax, [buf_ptr] |
1516 | mov eax, [buf_ptr] |
1522 | pop edi |
1517 | pop edi |
1523 | pop ebx |
1518 | pop ebx |
1524 | ret |
1519 | ret |
1525 | .mm_fail: |
1520 | .mm_fail: |
1526 | stdcall free_kernel_space, [buf_ptr] |
1521 | stdcall free_kernel_space, [buf_ptr] |
1527 | xor eax, eax |
1522 | xor eax, eax |
1528 | pop ebx |
1523 | pop ebx |
1529 | .fail: |
1524 | .fail: |
1530 | ret |
1525 | ret |
1531 | endp |
1526 | endp |
1532 | 1527 | ||
1533 | 1528 | ||
1534 | align 4 |
1529 | align 4 |
1535 | proc print_mem |
1530 | proc print_mem |
1536 | mov edi, BOOT_VAR + 0x9104 |
1531 | mov edi, BOOT_VAR + 0x9104 |
1537 | mov ecx, [edi-4] |
1532 | mov ecx, [edi-4] |
1538 | test ecx, ecx |
1533 | test ecx, ecx |
1539 | jz .done |
1534 | jz .done |
1540 | 1535 | ||
1541 | @@: |
1536 | @@: |
1542 | mov eax, [edi] |
1537 | mov eax, [edi] |
1543 | mov edx, [edi+4] |
1538 | mov edx, [edi+4] |
1544 | add eax, [edi+8] |
1539 | add eax, [edi+8] |
1545 | adc edx, [edi+12] |
1540 | adc edx, [edi+12] |
1546 | 1541 | ||
1547 | DEBUGF 1, "K : E820 %x%x - %x%x type %d\n", \ |
1542 | DEBUGF 1, "K : E820 %x%x - %x%x type %d\n", \ |
1548 | [edi+4], [edi],\ |
1543 | [edi+4], [edi],\ |
1549 | edx, eax, [edi+16] |
1544 | edx, eax, [edi+16] |
1550 | add edi, 20 |
1545 | add edi, 20 |
1551 | dec ecx |
1546 | dec ecx |
1552 | jnz @b |
1547 | jnz @b |
1553 | .done: |
1548 | .done: |
1554 | ret |
1549 | ret |
1555 | endp0>>=> |
1550 | endp0>>=> |