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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: 5130 $ |
8 | $Revision: 5356 $ |
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 | map_page: |
127 | map_page: |
128 | push ebx |
128 | push ebx |
129 | mov eax, [esp+12] ; phis_addr |
129 | mov eax, [esp+12] ; phis_addr |
130 | and eax, not 0xFFF |
130 | and eax, not 0xFFF |
131 | or eax, [esp+16] ; flags |
131 | or eax, [esp+16] ; flags |
132 | mov ebx, [esp+8] ; lin_addr |
132 | mov ebx, [esp+8] ; lin_addr |
133 | shr ebx, 12 |
133 | shr ebx, 12 |
134 | mov [page_tabs+ebx*4], eax |
134 | mov [page_tabs+ebx*4], eax |
135 | mov eax, [esp+8] ; lin_addr |
135 | mov eax, [esp+8] ; lin_addr |
136 | pop ebx |
136 | pop ebx |
137 | invlpg [eax] |
137 | invlpg [eax] |
138 | ret 12 |
138 | ret 12 |
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_READ |
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 | uglobal |
353 | uglobal |
354 | sb16_buffer_allocated db 0 |
354 | sb16_buffer_allocated db 0 |
355 | endg |
355 | endg |
356 | 356 | ||
357 | ; Allocates [.size] bytes so that the target memory block |
357 | ; Allocates [.size] bytes so that the target memory block |
358 | ; is inside one 64K page for 24-bit DMA controller, |
358 | ; is inside one 64K page for 24-bit DMA controller, |
359 | ; that is, somewhere between 00xx0000h and 00xxFFFFh. |
359 | ; that is, somewhere between 00xx0000h and 00xxFFFFh. |
360 | proc alloc_dma24 |
360 | proc alloc_dma24 |
361 | ; Implementation note. |
361 | ; Implementation note. |
362 | ; The only user of that function is SB16 driver, |
362 | ; The only user of that function is SB16 driver, |
363 | ; so just return a statically allocated buffer. |
363 | ; so just return a statically allocated buffer. |
364 | virtual at esp |
364 | virtual at esp |
365 | dd ? ; return address |
365 | dd ? ; return address |
366 | .size dd ? |
366 | .size dd ? |
367 | end virtual |
367 | end virtual |
368 | cmp [sb16_buffer_allocated], 0 |
368 | cmp [sb16_buffer_allocated], 0 |
369 | jnz .fail |
369 | jnz .fail |
370 | inc [sb16_buffer_allocated] |
370 | inc [sb16_buffer_allocated] |
371 | mov eax, SB16Buffer |
371 | mov eax, SB16Buffer |
372 | ret 4 |
372 | ret 4 |
373 | .fail: |
373 | .fail: |
374 | xor eax, eax |
374 | xor eax, eax |
375 | ret 4 |
375 | ret 4 |
376 | endp |
376 | endp |
377 | 377 | ||
378 | ; Allocates a physical page for master page table |
378 | ; Allocates a physical page for master page table |
379 | ; that duplicates first Mb of OS_BASE at address 0; |
379 | ; that duplicates first Mb of OS_BASE at address 0; |
380 | ; used for starting APs and for shutting down, |
380 | ; used for starting APs and for shutting down, |
381 | ; where it is important to execute code in trivial-mapped pages. |
381 | ; where it is important to execute code in trivial-mapped pages. |
382 | ; Returns eax = allocated physical page. |
382 | ; Returns eax = allocated physical page. |
383 | proc create_trampoline_pgmap |
383 | proc create_trampoline_pgmap |
384 | ; The only non-trivial moment: |
384 | ; The only non-trivial moment: |
385 | ; we need a linear address to fill information, |
385 | ; we need a linear address to fill information, |
386 | ; but we don't need it outside of this function, |
386 | ; but we don't need it outside of this function, |
387 | ; so we're returning physical address. |
387 | ; so we're returning physical address. |
388 | ; Therefore, allocate memory with kernel_alloc, |
388 | ; Therefore, allocate memory with kernel_alloc, |
389 | ; this will allocate physical page and a linear address somewhere, |
389 | ; this will allocate physical page and a linear address somewhere, |
390 | ; and deallocate only linear address with free_kernel_space. |
390 | ; and deallocate only linear address with free_kernel_space. |
391 | stdcall kernel_alloc, 0x1000 |
391 | stdcall kernel_alloc, 0x1000 |
392 | mov edi, eax |
392 | mov edi, eax |
393 | mov esi, master_tab |
393 | mov esi, master_tab |
394 | mov ecx, 1024 |
394 | mov ecx, 1024 |
395 | rep movsd |
395 | rep movsd |
396 | mov ecx, [master_tab+(OS_BASE shr 20)] |
396 | mov ecx, [master_tab+(OS_BASE shr 20)] |
397 | mov [eax], ecx |
397 | mov [eax], ecx |
398 | mov edi, eax |
398 | mov edi, eax |
399 | call get_pg_addr |
399 | call get_pg_addr |
400 | push eax |
400 | push eax |
401 | stdcall free_kernel_space, edi |
401 | stdcall free_kernel_space, edi |
402 | pop eax |
402 | pop eax |
403 | ret |
403 | ret |
404 | endp |
404 | endp |
405 | 405 | ||
406 | align 4 |
406 | align 4 |
407 | proc init_LFB |
407 | proc init_LFB |
408 | locals |
408 | locals |
409 | pg_count dd ? |
409 | pg_count dd ? |
410 | endl |
410 | endl |
411 | 411 | ||
412 | cmp dword [LFBAddress], -1 |
412 | cmp dword [LFBAddress], -1 |
413 | jne @f |
413 | jne @f |
414 | mov [BOOT_VARS+BOOT_MTRR], byte 2 |
414 | mov [BOOT_VARS+BOOT_MTRR], byte 2 |
415 | ; max VGA=640*480*4=1228800 bytes |
415 | ; max VGA=640*480*4=1228800 bytes |
416 | ; + 32*640*4=81920 bytes for mouse pointer |
416 | ; + 32*640*4=81920 bytes for mouse pointer |
417 | stdcall alloc_pages, ((1228800+81920)/4096) |
417 | stdcall alloc_pages, ((1228800+81920)/4096) |
418 | 418 | ||
419 | push eax |
419 | push eax |
420 | call alloc_page |
420 | call alloc_page |
421 | stdcall map_page_table, LFB_BASE, eax |
421 | stdcall map_page_table, LFB_BASE, eax |
422 | pop eax |
422 | pop eax |
423 | or eax, PG_UW |
423 | or eax, PG_UWR |
424 | mov ebx, LFB_BASE |
424 | mov ebx, LFB_BASE |
425 | ; max VGA=640*480*4=1228800 bytes |
425 | ; max VGA=640*480*4=1228800 bytes |
426 | ; + 32*640*4=81920 bytes for mouse pointer |
426 | ; + 32*640*4=81920 bytes for mouse pointer |
427 | mov ecx, (1228800+81920)/4096 |
427 | mov ecx, (1228800+81920)/4096 |
428 | call commit_pages |
428 | call commit_pages |
429 | mov [LFBAddress], dword LFB_BASE |
429 | mov [LFBAddress], dword LFB_BASE |
430 | ret |
430 | ret |
431 | @@: |
431 | @@: |
432 | test [SCR_MODE], word 0100000000000000b |
432 | test [SCR_MODE], word 0100000000000000b |
433 | jnz @f |
433 | jnz @f |
434 | mov [BOOT_VARS+BOOT_MTRR], byte 2 |
434 | mov [BOOT_VARS+BOOT_MTRR], byte 2 |
435 | ret |
435 | ret |
436 | @@: |
436 | @@: |
437 | call init_mtrr |
437 | call init_mtrr |
438 | 438 | ||
439 | mov edx, LFB_BASE |
439 | mov edx, LFB_BASE |
440 | mov esi, [LFBAddress] |
440 | mov esi, [LFBAddress] |
441 | mov edi, 0x00C00000 |
441 | mov edi, 0x00C00000 |
442 | mov dword [exp_lfb+4], edx |
442 | mov dword [exp_lfb+4], edx |
443 | 443 | ||
444 | shr edi, 12 |
444 | shr edi, 12 |
445 | mov [pg_count], edi |
445 | mov [pg_count], edi |
446 | shr edi, 10 |
446 | shr edi, 10 |
447 | 447 | ||
448 | bt [cpu_caps], CAPS_PSE |
448 | bt [cpu_caps], CAPS_PSE |
449 | jnc .map_page_tables |
449 | jnc .map_page_tables |
450 | or esi, PG_LARGE+PG_UW |
450 | or esi, PDE_LARGE+PG_UWR |
451 | mov edx, sys_proc+PROC.pdt_0+(LFB_BASE shr 20) |
451 | mov edx, sys_proc+PROC.pdt_0+(LFB_BASE shr 20) |
452 | @@: |
452 | @@: |
453 | mov [edx], esi |
453 | mov [edx], esi |
454 | add edx, 4 |
454 | add edx, 4 |
455 | add esi, 0x00400000 |
455 | add esi, 0x00400000 |
456 | dec edi |
456 | dec edi |
457 | jnz @B |
457 | jnz @B |
458 | 458 | ||
459 | bt [cpu_caps], CAPS_PGE |
459 | bt [cpu_caps], CAPS_PGE |
460 | jnc @F |
460 | jnc @F |
461 | or dword [sys_proc+PROC.pdt_0+(LFB_BASE shr 20)], PG_GLOBAL |
461 | or dword [sys_proc+PROC.pdt_0+(LFB_BASE shr 20)], PG_GLOBAL |
462 | @@: |
462 | @@: |
463 | mov dword [LFBAddress], LFB_BASE |
463 | mov dword [LFBAddress], LFB_BASE |
464 | mov eax, cr3 ;flush TLB |
464 | mov eax, cr3 ;flush TLB |
465 | mov cr3, eax |
465 | mov cr3, eax |
466 | ret |
466 | ret |
467 | 467 | ||
468 | .map_page_tables: |
468 | .map_page_tables: |
469 | 469 | ||
470 | @@: |
470 | @@: |
471 | call alloc_page |
471 | call alloc_page |
472 | stdcall map_page_table, edx, eax |
472 | stdcall map_page_table, edx, eax |
473 | add edx, 0x00400000 |
473 | add edx, 0x00400000 |
474 | dec edi |
474 | dec edi |
475 | jnz @B |
475 | jnz @B |
476 | 476 | ||
477 | mov eax, [LFBAddress] |
477 | mov eax, [LFBAddress] |
478 | mov edi, page_tabs + (LFB_BASE shr 10) |
478 | mov edi, page_tabs + (LFB_BASE shr 10) |
479 | or eax, PG_UW |
479 | or eax, PG_UWR |
480 | mov ecx, [pg_count] |
480 | mov ecx, [pg_count] |
481 | cld |
481 | cld |
482 | @@: |
482 | @@: |
483 | stosd |
483 | stosd |
484 | add eax, 0x1000 |
484 | add eax, 0x1000 |
485 | dec ecx |
485 | dec ecx |
486 | jnz @B |
486 | jnz @B |
487 | 487 | ||
488 | mov dword [LFBAddress], LFB_BASE |
488 | mov dword [LFBAddress], LFB_BASE |
489 | mov eax, cr3 ;flush TLB |
489 | mov eax, cr3 ;flush TLB |
490 | mov cr3, eax |
490 | mov cr3, eax |
491 | 491 | ||
492 | ret |
492 | ret |
493 | endp |
493 | endp |
494 | 494 | ||
495 | align 4 |
495 | align 4 |
496 | proc new_mem_resize stdcall, new_size:dword |
496 | proc new_mem_resize stdcall, new_size:dword |
497 | 497 | ||
498 | push ebx |
498 | push ebx |
499 | push esi |
499 | push esi |
500 | push edi |
500 | push edi |
501 | 501 | ||
502 | mov edx, [current_slot] |
502 | mov edx, [current_slot] |
503 | mov ebx, [edx+APPDATA.process] |
503 | mov ebx, [edx+APPDATA.process] |
504 | 504 | ||
505 | cmp [ebx+PROC.heap_base], 0 |
505 | cmp [ebx+PROC.heap_base], 0 |
506 | jne .exit |
506 | jne .exit |
507 | 507 | ||
508 | mov edi, [new_size] |
508 | mov edi, [new_size] |
509 | add edi, 4095 |
509 | add edi, 4095 |
510 | and edi, not 4095 |
510 | and edi, not 4095 |
511 | mov [new_size], edi |
511 | mov [new_size], edi |
512 | 512 | ||
513 | mov esi, [ebx+PROC.mem_used] |
513 | mov esi, [ebx+PROC.mem_used] |
514 | add esi, 4095 |
514 | add esi, 4095 |
515 | and esi, not 4095 |
515 | and esi, not 4095 |
516 | 516 | ||
517 | cmp edi, esi |
517 | cmp edi, esi |
518 | ja .expand |
518 | ja .expand |
519 | je .exit |
519 | je .exit |
520 | 520 | ||
521 | mov ebx, edi |
521 | mov ebx, edi |
522 | shr edi, 12 |
522 | shr edi, 12 |
523 | shr esi, 12 |
523 | shr esi, 12 |
524 | 524 | ||
525 | mov ecx, pg_data.mutex |
525 | mov ecx, pg_data.mutex |
526 | call mutex_lock |
526 | call mutex_lock |
527 | @@: |
527 | @@: |
528 | mov eax, [app_page_tabs+edi*4] |
528 | mov eax, [app_page_tabs+edi*4] |
529 | test eax, 1 |
529 | test eax, 1 |
530 | jz .next |
530 | jz .next |
531 | 531 | ||
532 | mov dword [app_page_tabs+edi*4], 0 |
532 | mov dword [app_page_tabs+edi*4], 0 |
533 | invlpg [ebx] |
533 | invlpg [ebx] |
534 | call free_page |
534 | call free_page |
535 | 535 | ||
536 | .next: |
536 | .next: |
537 | inc edi |
537 | inc edi |
538 | add ebx, 0x1000 |
538 | add ebx, 0x1000 |
539 | cmp edi, esi |
539 | cmp edi, esi |
540 | jb @B |
540 | jb @B |
541 | 541 | ||
542 | mov ecx, pg_data.mutex |
542 | mov ecx, pg_data.mutex |
543 | call mutex_unlock |
543 | call mutex_unlock |
544 | 544 | ||
545 | .update_size: |
545 | .update_size: |
546 | mov edx, [current_slot] |
546 | mov edx, [current_slot] |
547 | mov ebx, [new_size] |
547 | mov ebx, [new_size] |
548 | mov edx, [edx+APPDATA.process] |
548 | mov edx, [edx+APPDATA.process] |
549 | mov [edx+PROC.mem_used], ebx |
549 | mov [edx+PROC.mem_used], ebx |
550 | .exit: |
550 | .exit: |
551 | pop edi |
551 | pop edi |
552 | pop esi |
552 | pop esi |
553 | pop ebx |
553 | pop ebx |
554 | xor eax, eax |
554 | xor eax, eax |
555 | ret |
555 | ret |
556 | 556 | ||
557 | .expand: |
557 | .expand: |
558 | 558 | ||
559 | mov ecx, pg_data.mutex |
559 | mov ecx, pg_data.mutex |
560 | call mutex_lock |
560 | call mutex_lock |
561 | 561 | ||
562 | xchg esi, edi |
562 | xchg esi, edi |
563 | 563 | ||
564 | push esi ;new size |
564 | push esi ;new size |
565 | push edi ;old size |
565 | push edi ;old size |
566 | 566 | ||
567 | add edi, 0x3FFFFF |
567 | add edi, 0x3FFFFF |
568 | and edi, not(0x3FFFFF) |
568 | and edi, not(0x3FFFFF) |
569 | add esi, 0x3FFFFF |
569 | add esi, 0x3FFFFF |
570 | and esi, not(0x3FFFFF) |
570 | and esi, not(0x3FFFFF) |
571 | 571 | ||
572 | cmp edi, esi |
572 | cmp edi, esi |
573 | jae .grow |
573 | jae .grow |
574 | @@: |
574 | @@: |
575 | call alloc_page |
575 | call alloc_page |
576 | test eax, eax |
576 | test eax, eax |
577 | jz .exit_fail |
577 | jz .exit_fail |
578 | 578 | ||
579 | stdcall map_page_table, edi, eax |
579 | stdcall map_page_table, edi, eax |
580 | 580 | ||
581 | push edi |
581 | push edi |
582 | shr edi, 10 |
582 | shr edi, 10 |
583 | add edi, page_tabs |
583 | add edi, page_tabs |
584 | mov ecx, 1024 |
584 | mov ecx, 1024 |
585 | xor eax, eax |
585 | xor eax, eax |
586 | cld |
586 | cld |
587 | rep stosd |
587 | rep stosd |
588 | pop edi |
588 | pop edi |
589 | 589 | ||
590 | add edi, 0x00400000 |
590 | add edi, 0x00400000 |
591 | cmp edi, esi |
591 | cmp edi, esi |
592 | jb @B |
592 | jb @B |
593 | .grow: |
593 | .grow: |
594 | pop edi ;old size |
594 | pop edi ;old size |
595 | pop ecx ;new size |
595 | pop ecx ;new size |
596 | 596 | ||
597 | shr edi, 10 |
597 | shr edi, 10 |
598 | shr ecx, 10 |
598 | shr ecx, 10 |
599 | sub ecx, edi |
599 | sub ecx, edi |
600 | shr ecx, 2 ;pages count |
600 | shr ecx, 2 ;pages count |
601 | mov eax, 2 |
601 | mov eax, 2 |
602 | 602 | ||
603 | add edi, app_page_tabs |
603 | add edi, app_page_tabs |
604 | rep stosd |
604 | rep stosd |
605 | 605 | ||
606 | mov ecx, pg_data.mutex |
606 | mov ecx, pg_data.mutex |
607 | call mutex_unlock |
607 | call mutex_unlock |
608 | 608 | ||
609 | jmp .update_size |
609 | jmp .update_size |
610 | 610 | ||
611 | .exit_fail: |
611 | .exit_fail: |
612 | mov ecx, pg_data.mutex |
612 | mov ecx, pg_data.mutex |
613 | call mutex_unlock |
613 | call mutex_unlock |
614 | 614 | ||
615 | add esp, 8 |
615 | add esp, 8 |
616 | pop edi |
616 | pop edi |
617 | pop esi |
617 | pop esi |
618 | pop ebx |
618 | pop ebx |
619 | xor eax, eax |
619 | xor eax, eax |
620 | inc eax |
620 | inc eax |
621 | ret |
621 | ret |
622 | endp |
622 | endp |
623 | 623 | ||
624 | 624 | ||
625 | ; param |
625 | ; param |
626 | ; eax= linear address |
626 | ; eax= linear address |
627 | ; |
627 | ; |
628 | ; retval |
628 | ; retval |
629 | ; eax= phisical page address |
629 | ; eax= phisical page address |
630 | 630 | ||
631 | align 4 |
631 | align 4 |
632 | get_pg_addr: |
632 | get_pg_addr: |
633 | sub eax, OS_BASE |
633 | sub eax, OS_BASE |
634 | cmp eax, 0x400000 |
634 | cmp eax, 0x400000 |
635 | jb @f |
635 | jb @f |
636 | shr eax, 12 |
636 | shr eax, 12 |
637 | mov eax, [page_tabs+(eax+(OS_BASE shr 12))*4] |
637 | mov eax, [page_tabs+(eax+(OS_BASE shr 12))*4] |
638 | @@: |
638 | @@: |
639 | and eax, 0xFFFFF000 |
639 | and eax, 0xFFFFF000 |
640 | ret |
640 | ret |
641 | 641 | ||
642 | 642 | ||
643 | align 4 |
643 | align 4 |
644 | ; Now it is called from core/sys32::exc_c (see stack frame there) |
644 | ; Now it is called from core/sys32::exc_c (see stack frame there) |
645 | proc page_fault_handler |
645 | proc page_fault_handler |
646 | 646 | ||
647 | .err_addr equ ebp-4 |
647 | .err_addr equ ebp-4 |
648 | 648 | ||
649 | push ebx ;save exception number (#PF) |
649 | push ebx ;save exception number (#PF) |
650 | mov ebp, esp |
650 | mov ebp, esp |
651 | mov ebx, cr2 |
651 | mov ebx, cr2 |
652 | push ebx ;that is locals: .err_addr = cr2 |
652 | push ebx ;that is locals: .err_addr = cr2 |
653 | inc [pg_data.pages_faults] |
653 | inc [pg_data.pages_faults] |
654 | 654 | ||
655 | mov eax, [pf_err_code] |
655 | mov eax, [pf_err_code] |
656 | 656 | ||
657 | cmp ebx, OS_BASE ;ebx == .err_addr |
657 | cmp ebx, OS_BASE ;ebx == .err_addr |
658 | jb .user_space ;страница в памяти приложения ; |
658 | jb .user_space ;страница в памяти приложения ; |
659 | 659 | ||
660 | cmp ebx, page_tabs |
660 | cmp ebx, page_tabs |
661 | jb .kernel_space ;страница в памяти ядра |
661 | jb .kernel_space ;страница в памяти ядра |
662 | 662 | ||
663 | cmp ebx, kernel_tabs |
663 | cmp ebx, kernel_tabs |
664 | jb .alloc;.app_tabs ;таблицы страниц приложения ; |
664 | jb .alloc;.app_tabs ;таблицы страниц приложения ; |
665 | ;просто создадим одну |
665 | ;просто создадим одну |
666 | if 0 ;пока это просто лишнее |
666 | if 0 ;пока это просто лишнее |
667 | cmp ebx, LFB_BASE |
667 | cmp ebx, LFB_BASE |
668 | jb .core_tabs ;таблицы страниц ядра |
668 | jb .core_tabs ;таблицы страниц ядра |
669 | ;Ошибка |
669 | ;Ошибка |
670 | .lfb: |
670 | .lfb: |
671 | ;область LFB |
671 | ;область LFB |
672 | ;Ошибка |
672 | ;Ошибка |
673 | jmp .fail |
673 | jmp .fail |
674 | end if |
674 | end if |
675 | .core_tabs: |
675 | .core_tabs: |
676 | .fail: ;simply return to caller |
676 | .fail: ;simply return to caller |
677 | mov esp, ebp |
677 | mov esp, ebp |
678 | pop ebx ;restore exception number (#PF) |
678 | pop ebx ;restore exception number (#PF) |
679 | ret |
679 | ret |
680 | 680 | ||
681 | .user_space: |
681 | .user_space: |
682 | test eax, PG_MAP |
682 | test eax, PG_READ |
683 | jnz .err_access ;Страница присутствует |
683 | jnz .err_access ;Страница присутствует |
684 | ;Ошибка доступа ? |
684 | ;Ошибка доступа ? |
685 | 685 | ||
686 | shr ebx, 12 |
686 | shr ebx, 12 |
687 | mov ecx, ebx |
687 | mov ecx, ebx |
688 | shr ecx, 10 |
688 | shr ecx, 10 |
689 | mov edx, [master_tab+ecx*4] |
689 | mov edx, [master_tab+ecx*4] |
690 | test edx, PG_MAP |
690 | test edx, PG_READ |
691 | jz .fail ;таблица страниц не создана |
691 | jz .fail ;таблица страниц не создана |
692 | ;неверный адрес в программе |
692 | ;неверный адрес в программе |
693 | 693 | ||
694 | mov eax, [page_tabs+ebx*4] |
694 | mov eax, [page_tabs+ebx*4] |
695 | test eax, 2 |
695 | test eax, 2 |
696 | jz .fail ;адрес не зарезервирован для ; |
696 | jz .fail ;адрес не зарезервирован для ; |
697 | ;использования. Ошибка |
697 | ;использования. Ошибка |
698 | .alloc: |
698 | .alloc: |
699 | call alloc_page |
699 | call alloc_page |
700 | test eax, eax |
700 | test eax, eax |
701 | jz .fail |
701 | jz .fail |
702 | 702 | ||
703 | stdcall map_page, [.err_addr], eax, PG_UW |
703 | stdcall map_page, [.err_addr], eax, PG_UWR |
704 | 704 | ||
705 | mov edi, [.err_addr] |
705 | mov edi, [.err_addr] |
706 | and edi, 0xFFFFF000 |
706 | and edi, 0xFFFFF000 |
707 | mov ecx, 1024 |
707 | mov ecx, 1024 |
708 | xor eax, eax |
708 | xor eax, eax |
709 | ;cld ;caller is duty for this |
709 | ;cld ;caller is duty for this |
710 | rep stosd |
710 | rep stosd |
711 | .exit: ;iret with repeat fault instruction |
711 | .exit: ;iret with repeat fault instruction |
712 | add esp, 12;clear in stack: locals(.err_addr) + #PF + ret_to_caller |
712 | add esp, 12;clear in stack: locals(.err_addr) + #PF + ret_to_caller |
713 | restore_ring3_context |
713 | restore_ring3_context |
714 | iretd |
714 | iretd |
715 | 715 | ||
716 | .err_access: |
716 | .err_access: |
717 | ; access denied? this may be a result of copy-on-write protection for DLL |
717 | ; access denied? this may be a result of copy-on-write protection for DLL |
718 | ; check list of HDLLs |
718 | ; check list of HDLLs |
719 | and ebx, not 0xFFF |
719 | and ebx, not 0xFFF |
720 | mov eax, [current_process] |
720 | mov eax, [current_process] |
721 | mov eax, [eax+PROC.dlls_list_ptr] |
721 | mov eax, [eax+PROC.dlls_list_ptr] |
722 | test eax, eax |
722 | test eax, eax |
723 | jz .fail |
723 | jz .fail |
724 | mov esi, [eax+HDLL.fd] |
724 | mov esi, [eax+HDLL.fd] |
725 | .scan_hdll: |
725 | .scan_hdll: |
726 | cmp esi, eax |
726 | cmp esi, eax |
727 | jz .fail |
727 | jz .fail |
728 | mov edx, ebx |
728 | mov edx, ebx |
729 | sub edx, [esi+HDLL.base] |
729 | sub edx, [esi+HDLL.base] |
730 | cmp edx, [esi+HDLL.size] |
730 | cmp edx, [esi+HDLL.size] |
731 | jb .fault_in_hdll |
731 | jb .fault_in_hdll |
732 | .scan_hdll.next: |
732 | .scan_hdll.next: |
733 | mov esi, [esi+HDLL.fd] |
733 | mov esi, [esi+HDLL.fd] |
734 | jmp .scan_hdll |
734 | jmp .scan_hdll |
735 | .fault_in_hdll: |
735 | .fault_in_hdll: |
736 | ; allocate new page, map it as rw and copy data |
736 | ; allocate new page, map it as rw and copy data |
737 | call alloc_page |
737 | call alloc_page |
738 | test eax, eax |
738 | test eax, eax |
739 | jz .fail |
739 | jz .fail |
740 | stdcall map_page, ebx, eax, PG_UW |
740 | stdcall map_page, ebx, eax, PG_UWR |
741 | mov edi, ebx |
741 | mov edi, ebx |
742 | mov ecx, 1024 |
742 | mov ecx, 1024 |
743 | sub ebx, [esi+HDLL.base] |
743 | sub ebx, [esi+HDLL.base] |
744 | mov esi, [esi+HDLL.parent] |
744 | mov esi, [esi+HDLL.parent] |
745 | mov esi, [esi+DLLDESCR.data] |
745 | mov esi, [esi+DLLDESCR.data] |
746 | add esi, ebx |
746 | add esi, ebx |
747 | rep movsd |
747 | rep movsd |
748 | jmp .exit |
748 | jmp .exit |
749 | 749 | ||
750 | .kernel_space: |
750 | .kernel_space: |
751 | test eax, PG_MAP |
751 | test eax, PG_READ |
752 | jz .fail ;страница не присутствует |
752 | jz .fail ;страница не присутствует |
753 | 753 | ||
754 | test eax, 12 ;U/S (+below) |
754 | test eax, 12 ;U/S (+below) |
755 | jnz .fail ;приложение обратилось к памяти |
755 | jnz .fail ;приложение обратилось к памяти |
756 | ;ядра |
756 | ;ядра |
757 | ;test eax, 8 |
757 | ;test eax, 8 |
758 | ;jnz .fail ;установлен зарезервированный бит |
758 | ;jnz .fail ;установлен зарезервированный бит |
759 | ;в таблицах страниц. добавлено в P4/Xeon |
759 | ;в таблицах страниц. добавлено в P4/Xeon |
760 | 760 | ||
761 | ;попытка записи в защищённую страницу ядра |
761 | ;попытка записи в защищённую страницу ядра |
762 | 762 | ||
763 | cmp ebx, tss._io_map_0 |
763 | cmp ebx, tss._io_map_0 |
764 | jb .fail |
764 | jb .fail |
765 | 765 | ||
766 | cmp ebx, tss._io_map_0+8192 |
766 | cmp ebx, tss._io_map_0+8192 |
767 | jae .fail |
767 | jae .fail |
768 | 768 | ||
769 | ; io permission map |
769 | ; io permission map |
770 | ; copy-on-write protection |
770 | ; copy-on-write protection |
771 | 771 | ||
772 | call alloc_page |
772 | call alloc_page |
773 | test eax, eax |
773 | test eax, eax |
774 | jz .fail |
774 | jz .fail |
775 | 775 | ||
776 | push eax |
776 | push eax |
777 | stdcall map_page, [.err_addr], eax, dword PG_SW |
777 | stdcall map_page, [.err_addr], eax, dword PG_SWR |
778 | pop eax |
778 | pop eax |
779 | mov edi, [.err_addr] |
779 | mov edi, [.err_addr] |
780 | and edi, -4096 |
780 | and edi, -4096 |
781 | lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0 |
781 | lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0 |
782 | 782 | ||
783 | mov ebx, esi |
783 | mov ebx, esi |
784 | shr ebx, 12 |
784 | shr ebx, 12 |
785 | mov edx, [current_slot] |
785 | mov edx, [current_slot] |
786 | or eax, PG_SW |
786 | or eax, PG_SWR |
787 | mov [edx+APPDATA.io_map+ebx*4], eax |
787 | mov [edx+APPDATA.io_map+ebx*4], eax |
788 | 788 | ||
789 | add esi, [default_io_map] |
789 | add esi, [default_io_map] |
790 | mov ecx, 4096/4 |
790 | mov ecx, 4096/4 |
791 | ;cld ;caller is duty for this |
791 | ;cld ;caller is duty for this |
792 | rep movsd |
792 | rep movsd |
793 | jmp .exit |
793 | jmp .exit |
794 | endp |
794 | endp |
795 | 795 | ||
796 | ; returns number of mapped bytes |
796 | ; returns number of mapped bytes |
797 | proc map_mem_ipc stdcall, lin_addr:dword,slot:dword,\ |
797 | proc map_mem_ipc stdcall, lin_addr:dword,slot:dword,\ |
798 | ofs:dword,buf_size:dword,req_access:dword |
798 | ofs:dword,buf_size:dword,req_access:dword |
799 | locals |
799 | locals |
800 | count dd ? |
800 | count dd ? |
801 | process dd ? |
801 | process dd ? |
802 | endl |
802 | endl |
803 | 803 | ||
804 | mov [count], 0 |
804 | mov [count], 0 |
805 | cmp [buf_size], 0 |
805 | cmp [buf_size], 0 |
806 | jz .exit |
806 | jz .exit |
807 | 807 | ||
808 | mov eax, [slot] |
808 | mov eax, [slot] |
809 | shl eax, 8 |
809 | shl eax, 8 |
810 | mov eax, [SLOT_BASE+eax+APPDATA.process] |
810 | mov eax, [SLOT_BASE+eax+APPDATA.process] |
811 | test eax, eax |
811 | test eax, eax |
812 | jz .exit |
812 | jz .exit |
813 | 813 | ||
814 | mov [process], eax |
814 | mov [process], eax |
815 | mov ebx, [ofs] |
815 | mov ebx, [ofs] |
816 | shr ebx, 22 |
816 | shr ebx, 22 |
817 | mov eax, [eax+PROC.pdt_0+ebx*4] ;get page table |
817 | mov eax, [eax+PROC.pdt_0+ebx*4] ;get page table |
818 | mov esi, [ipc_ptab] |
818 | mov esi, [ipc_ptab] |
819 | and eax, 0xFFFFF000 |
819 | and eax, 0xFFFFF000 |
820 | jz .exit |
820 | jz .exit |
821 | stdcall map_page, esi, eax, PG_SW |
821 | stdcall map_page, esi, eax, PG_SWR |
822 | @@: |
822 | @@: |
823 | mov edi, [lin_addr] |
823 | mov edi, [lin_addr] |
824 | and edi, 0xFFFFF000 |
824 | and edi, 0xFFFFF000 |
825 | mov ecx, [buf_size] |
825 | mov ecx, [buf_size] |
826 | add ecx, 4095 |
826 | add ecx, 4095 |
827 | shr ecx, 12 |
827 | shr ecx, 12 |
828 | inc ecx ; ??????????? |
828 | inc ecx ; ??????????? |
829 | 829 | ||
830 | mov edx, [ofs] |
830 | mov edx, [ofs] |
831 | shr edx, 12 |
831 | shr edx, 12 |
832 | and edx, 0x3FF |
832 | and edx, 0x3FF |
833 | .map: |
833 | .map: |
834 | stdcall safe_map_page, [slot], [req_access], [ofs] |
834 | stdcall safe_map_page, [slot], [req_access], [ofs] |
835 | jnc .exit |
835 | jnc .exit |
836 | add [count], PAGE_SIZE |
836 | add [count], PAGE_SIZE |
837 | add [ofs], PAGE_SIZE |
837 | add [ofs], PAGE_SIZE |
838 | dec ecx |
838 | dec ecx |
839 | jz .exit |
839 | jz .exit |
840 | 840 | ||
841 | add edi, PAGE_SIZE |
841 | add edi, PAGE_SIZE |
842 | inc edx |
842 | inc edx |
843 | cmp edx, 1024 |
843 | cmp edx, 1024 |
844 | jnz .map |
844 | jnz .map |
845 | 845 | ||
846 | inc ebx |
846 | inc ebx |
847 | mov eax, [process] |
847 | mov eax, [process] |
848 | mov eax, [eax+PROC.pdt_0+ebx*4] |
848 | mov eax, [eax+PROC.pdt_0+ebx*4] |
849 | and eax, 0xFFFFF000 |
849 | and eax, 0xFFFFF000 |
850 | jz .exit |
850 | jz .exit |
851 | 851 | ||
852 | stdcall map_page, esi, eax, PG_SW |
852 | stdcall map_page, esi, eax, PG_SWR |
853 | xor edx, edx |
853 | xor edx, edx |
854 | jmp .map |
854 | jmp .map |
855 | .exit: |
855 | .exit: |
856 | mov eax, [count] |
856 | mov eax, [count] |
857 | ret |
857 | ret |
858 | endp |
858 | endp |
859 | 859 | ||
860 | proc map_memEx stdcall, lin_addr:dword,slot:dword,\ |
860 | proc map_memEx stdcall, lin_addr:dword,slot:dword,\ |
861 | ofs:dword,buf_size:dword,req_access:dword |
861 | ofs:dword,buf_size:dword,req_access:dword |
862 | locals |
862 | locals |
863 | count dd ? |
863 | count dd ? |
864 | process dd ? |
864 | process dd ? |
865 | endl |
865 | endl |
866 | 866 | ||
867 | mov [count], 0 |
867 | mov [count], 0 |
868 | cmp [buf_size], 0 |
868 | cmp [buf_size], 0 |
869 | jz .exit |
869 | jz .exit |
870 | 870 | ||
871 | mov eax, [slot] |
871 | mov eax, [slot] |
872 | shl eax, 8 |
872 | shl eax, 8 |
873 | mov eax, [SLOT_BASE+eax+APPDATA.process] |
873 | mov eax, [SLOT_BASE+eax+APPDATA.process] |
874 | test eax, eax |
874 | test eax, eax |
875 | jz .exit |
875 | jz .exit |
876 | 876 | ||
877 | mov [process], eax |
877 | mov [process], eax |
878 | mov ebx, [ofs] |
878 | mov ebx, [ofs] |
879 | shr ebx, 22 |
879 | shr ebx, 22 |
880 | mov eax, [eax+PROC.pdt_0+ebx*4] ;get page table |
880 | mov eax, [eax+PROC.pdt_0+ebx*4] ;get page table |
881 | mov esi, [proc_mem_tab] |
881 | mov esi, [proc_mem_tab] |
882 | and eax, 0xFFFFF000 |
882 | and eax, 0xFFFFF000 |
883 | jz .exit |
883 | jz .exit |
884 | stdcall map_page, esi, eax, PG_SW |
884 | stdcall map_page, esi, eax, PG_SWR |
885 | @@: |
885 | @@: |
886 | mov edi, [lin_addr] |
886 | mov edi, [lin_addr] |
887 | and edi, 0xFFFFF000 |
887 | and edi, 0xFFFFF000 |
888 | mov ecx, [buf_size] |
888 | mov ecx, [buf_size] |
889 | add ecx, 4095 |
889 | add ecx, 4095 |
890 | shr ecx, 12 |
890 | shr ecx, 12 |
891 | inc ecx ; ??????????? |
891 | inc ecx ; ??????????? |
892 | 892 | ||
893 | mov edx, [ofs] |
893 | mov edx, [ofs] |
894 | shr edx, 12 |
894 | shr edx, 12 |
895 | and edx, 0x3FF |
895 | and edx, 0x3FF |
896 | .map: |
896 | .map: |
897 | stdcall safe_map_page, [slot], [req_access], [ofs] |
897 | stdcall safe_map_page, [slot], [req_access], [ofs] |
898 | jnc .exit |
898 | jnc .exit |
899 | add [count], PAGE_SIZE |
899 | add [count], PAGE_SIZE |
900 | add [ofs], PAGE_SIZE |
900 | add [ofs], PAGE_SIZE |
901 | dec ecx |
901 | dec ecx |
902 | jz .exit |
902 | jz .exit |
903 | 903 | ||
904 | add edi, PAGE_SIZE |
904 | add edi, PAGE_SIZE |
905 | inc edx |
905 | inc edx |
906 | cmp edx, 1024 |
906 | cmp edx, 1024 |
907 | jnz .map |
907 | jnz .map |
908 | 908 | ||
909 | inc ebx |
909 | inc ebx |
910 | mov eax, [process] |
910 | mov eax, [process] |
911 | mov eax, [eax+PROC.pdt_0+ebx*4] |
911 | mov eax, [eax+PROC.pdt_0+ebx*4] |
912 | and eax, 0xFFFFF000 |
912 | and eax, 0xFFFFF000 |
913 | jz .exit |
913 | jz .exit |
914 | 914 | ||
915 | stdcall map_page, esi, eax, PG_SW |
915 | stdcall map_page, esi, eax, PG_SWR |
916 | xor edx, edx |
916 | xor edx, edx |
917 | jmp .map |
917 | jmp .map |
918 | .exit: |
918 | .exit: |
919 | mov eax, [count] |
919 | mov eax, [count] |
920 | ret |
920 | ret |
921 | endp |
921 | endp |
922 | 922 | ||
923 | ; in: esi+edx*4 = pointer to page table entry |
923 | ; in: esi+edx*4 = pointer to page table entry |
924 | ; in: [slot], [req_access], [ofs] on the stack |
924 | ; in: [slot], [req_access], [ofs] on the stack |
925 | ; in: edi = linear address to map |
925 | ; in: edi = linear address to map |
926 | ; out: CF cleared <=> failed |
926 | ; out: CF cleared <=> failed |
927 | ; destroys: only eax |
927 | ; destroys: only eax |
928 | proc safe_map_page stdcall, slot:dword, req_access:dword, ofs:dword |
928 | proc safe_map_page stdcall, slot:dword, req_access:dword, ofs:dword |
929 | mov eax, [esi+edx*4] |
929 | mov eax, [esi+edx*4] |
930 | test al, PG_MAP |
930 | test al, PG_READ |
931 | jz .not_present |
931 | jz .not_present |
932 | test al, PG_WRITE |
932 | test al, PG_WRITE |
933 | jz .resolve_readonly |
933 | jz .resolve_readonly |
934 | ; normal case: writable page, just map with requested access |
934 | ; normal case: writable page, just map with requested access |
935 | .map: |
935 | .map: |
936 | stdcall map_page, edi, eax, [req_access] |
936 | stdcall map_page, edi, eax, [req_access] |
937 | stc |
937 | stc |
938 | .fail: |
938 | .fail: |
939 | ret |
939 | ret |
940 | .not_present: |
940 | .not_present: |
941 | ; check for alloc-on-demand page |
941 | ; check for alloc-on-demand page |
942 | test al, 2 |
942 | test al, 2 |
943 | jz .fail |
943 | jz .fail |
944 | ; allocate new page, save it to source page table |
944 | ; allocate new page, save it to source page table |
945 | push ecx |
945 | push ecx |
946 | call alloc_page |
946 | call alloc_page |
947 | pop ecx |
947 | pop ecx |
948 | test eax, eax |
948 | test eax, eax |
949 | jz .fail |
949 | jz .fail |
950 | or al, PG_UW |
950 | or al, PG_UWR |
951 | mov [esi+edx*4], eax |
951 | mov [esi+edx*4], eax |
952 | jmp .map |
952 | jmp .map |
953 | .resolve_readonly: |
953 | .resolve_readonly: |
954 | ; readonly page, probably copy-on-write |
954 | ; readonly page, probably copy-on-write |
955 | ; check: readonly request of readonly page is ok |
955 | ; check: readonly request of readonly page is ok |
956 | test [req_access], PG_WRITE |
956 | test [req_access], PG_WRITE |
957 | jz .map |
957 | jz .map |
958 | ; find control structure for this page |
958 | ; find control structure for this page |
959 | pushf |
959 | pushf |
960 | cli |
960 | cli |
961 | cld |
961 | cld |
962 | push ebx ecx |
962 | push ebx ecx |
963 | mov eax, [slot] |
963 | mov eax, [slot] |
964 | shl eax, 8 |
964 | shl eax, 8 |
965 | mov eax, [SLOT_BASE+eax+APPDATA.process] |
965 | mov eax, [SLOT_BASE+eax+APPDATA.process] |
966 | mov eax, [eax+PROC.dlls_list_ptr] |
966 | mov eax, [eax+PROC.dlls_list_ptr] |
967 | test eax, eax |
967 | test eax, eax |
968 | jz .no_hdll |
968 | jz .no_hdll |
969 | mov ecx, [eax+HDLL.fd] |
969 | mov ecx, [eax+HDLL.fd] |
970 | .scan_hdll: |
970 | .scan_hdll: |
971 | cmp ecx, eax |
971 | cmp ecx, eax |
972 | jz .no_hdll |
972 | jz .no_hdll |
973 | mov ebx, [ofs] |
973 | mov ebx, [ofs] |
974 | and ebx, not 0xFFF |
974 | and ebx, not 0xFFF |
975 | sub ebx, [ecx+HDLL.base] |
975 | sub ebx, [ecx+HDLL.base] |
976 | cmp ebx, [ecx+HDLL.size] |
976 | cmp ebx, [ecx+HDLL.size] |
977 | jb .hdll_found |
977 | jb .hdll_found |
978 | mov ecx, [ecx+HDLL.fd] |
978 | mov ecx, [ecx+HDLL.fd] |
979 | jmp .scan_hdll |
979 | jmp .scan_hdll |
980 | .no_hdll: |
980 | .no_hdll: |
981 | pop ecx ebx |
981 | pop ecx ebx |
982 | popf |
982 | popf |
983 | clc |
983 | clc |
984 | ret |
984 | ret |
985 | .hdll_found: |
985 | .hdll_found: |
986 | ; allocate page, save it in page table, map it, copy contents from base |
986 | ; allocate page, save it in page table, map it, copy contents from base |
987 | mov eax, [ecx+HDLL.parent] |
987 | mov eax, [ecx+HDLL.parent] |
988 | add ebx, [eax+DLLDESCR.data] |
988 | add ebx, [eax+DLLDESCR.data] |
989 | call alloc_page |
989 | call alloc_page |
990 | test eax, eax |
990 | test eax, eax |
991 | jz .no_hdll |
991 | jz .no_hdll |
992 | or al, PG_UW |
992 | or al, PG_UWR |
993 | mov [esi+edx*4], eax |
993 | mov [esi+edx*4], eax |
994 | stdcall map_page, edi, eax, [req_access] |
994 | stdcall map_page, edi, eax, [req_access] |
995 | push esi edi |
995 | push esi edi |
996 | mov esi, ebx |
996 | mov esi, ebx |
997 | mov ecx, 4096/4 |
997 | mov ecx, 4096/4 |
998 | rep movsd |
998 | rep movsd |
999 | pop edi esi |
999 | pop edi esi |
1000 | pop ecx ebx |
1000 | pop ecx ebx |
1001 | popf |
1001 | popf |
1002 | stc |
1002 | stc |
1003 | ret |
1003 | ret |
1004 | endp |
1004 | endp |
1005 | 1005 | ||
1006 | sys_IPC: |
1006 | sys_IPC: |
1007 | ;input: |
1007 | ;input: |
1008 | ; ebx=1 - set ipc buffer area |
1008 | ; ebx=1 - set ipc buffer area |
1009 | ; ecx=address of buffer |
1009 | ; ecx=address of buffer |
1010 | ; edx=size of buffer |
1010 | ; edx=size of buffer |
1011 | ; eax=2 - send message |
1011 | ; eax=2 - send message |
1012 | ; ebx=PID |
1012 | ; ebx=PID |
1013 | ; ecx=address of message |
1013 | ; ecx=address of message |
1014 | ; edx=size of message |
1014 | ; edx=size of message |
1015 | 1015 | ||
1016 | dec ebx |
1016 | dec ebx |
1017 | jnz @f |
1017 | jnz @f |
1018 | 1018 | ||
1019 | mov eax, [current_slot] |
1019 | mov eax, [current_slot] |
1020 | pushf |
1020 | pushf |
1021 | cli |
1021 | cli |
1022 | mov [eax+APPDATA.ipc_start], ecx ;set fields in extended information area |
1022 | mov [eax+APPDATA.ipc_start], ecx ;set fields in extended information area |
1023 | mov [eax+APPDATA.ipc_size], edx |
1023 | mov [eax+APPDATA.ipc_size], edx |
1024 | 1024 | ||
1025 | add edx, ecx |
1025 | add edx, ecx |
1026 | add edx, 4095 |
1026 | add edx, 4095 |
1027 | and edx, not 4095 |
1027 | and edx, not 4095 |
1028 | 1028 | ||
1029 | .touch: |
1029 | .touch: |
1030 | mov eax, [ecx] |
1030 | mov eax, [ecx] |
1031 | add ecx, 0x1000 |
1031 | add ecx, 0x1000 |
1032 | cmp ecx, edx |
1032 | cmp ecx, edx |
1033 | jb .touch |
1033 | jb .touch |
1034 | 1034 | ||
1035 | popf |
1035 | popf |
1036 | mov [esp+32], ebx ;ebx=0 |
1036 | mov [esp+32], ebx ;ebx=0 |
1037 | ret |
1037 | ret |
1038 | 1038 | ||
1039 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1039 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1040 | ;2 |
1040 | ;2 |
1041 | @@: |
1041 | @@: |
1042 | dec ebx |
1042 | dec ebx |
1043 | jnz @f |
1043 | jnz @f |
1044 | 1044 | ||
1045 | stdcall sys_ipc_send, ecx, edx, esi |
1045 | stdcall sys_ipc_send, ecx, edx, esi |
1046 | mov [esp+32], eax |
1046 | mov [esp+32], eax |
1047 | ret |
1047 | ret |
1048 | @@: |
1048 | @@: |
1049 | or eax, -1 |
1049 | or eax, -1 |
1050 | mov [esp+32], eax |
1050 | mov [esp+32], eax |
1051 | ret |
1051 | ret |
1052 | 1052 | ||
1053 | proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword |
1053 | proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword |
1054 | locals |
1054 | locals |
1055 | dst_slot dd ? |
1055 | dst_slot dd ? |
1056 | dst_offset dd ? |
1056 | dst_offset dd ? |
1057 | buf_size dd ? |
1057 | buf_size dd ? |
1058 | used_buf dd ? |
1058 | used_buf dd ? |
1059 | endl |
1059 | endl |
1060 | 1060 | ||
1061 | pushf |
1061 | pushf |
1062 | cli |
1062 | cli |
1063 | 1063 | ||
1064 | mov eax, [PID] |
1064 | mov eax, [PID] |
1065 | call pid_to_slot |
1065 | call pid_to_slot |
1066 | test eax, eax |
1066 | test eax, eax |
1067 | jz .no_pid |
1067 | jz .no_pid |
1068 | 1068 | ||
1069 | mov [dst_slot], eax |
1069 | mov [dst_slot], eax |
1070 | shl eax, 8 |
1070 | shl eax, 8 |
1071 | mov edi, [eax+SLOT_BASE+APPDATA.ipc_start] ;is ipc area defined? |
1071 | mov edi, [eax+SLOT_BASE+APPDATA.ipc_start] ;is ipc area defined? |
1072 | test edi, edi |
1072 | test edi, edi |
1073 | jz .no_ipc_area |
1073 | jz .no_ipc_area |
1074 | 1074 | ||
1075 | mov ebx, edi |
1075 | mov ebx, edi |
1076 | and ebx, 0xFFF |
1076 | and ebx, 0xFFF |
1077 | mov [dst_offset], ebx |
1077 | mov [dst_offset], ebx |
1078 | 1078 | ||
1079 | mov esi, [eax+SLOT_BASE+APPDATA.ipc_size] |
1079 | mov esi, [eax+SLOT_BASE+APPDATA.ipc_size] |
1080 | mov [buf_size], esi |
1080 | mov [buf_size], esi |
1081 | 1081 | ||
1082 | mov ecx, [ipc_tmp] |
1082 | mov ecx, [ipc_tmp] |
1083 | cmp esi, 0x40000-0x1000; size of [ipc_tmp] minus one page |
1083 | cmp esi, 0x40000-0x1000; size of [ipc_tmp] minus one page |
1084 | jbe @f |
1084 | jbe @f |
1085 | push esi edi |
1085 | push esi edi |
1086 | add esi, 0x1000 |
1086 | add esi, 0x1000 |
1087 | stdcall alloc_kernel_space, esi |
1087 | stdcall alloc_kernel_space, esi |
1088 | mov ecx, eax |
1088 | mov ecx, eax |
1089 | pop edi esi |
1089 | pop edi esi |
1090 | @@: |
1090 | @@: |
1091 | mov [used_buf], ecx |
1091 | mov [used_buf], ecx |
1092 | stdcall map_mem_ipc, ecx, [dst_slot], \ |
1092 | stdcall map_mem_ipc, ecx, [dst_slot], \ |
1093 | edi, esi, PG_SW |
1093 | edi, esi, PG_SWR |
1094 | 1094 | ||
1095 | mov edi, [dst_offset] |
1095 | mov edi, [dst_offset] |
1096 | add edi, [used_buf] |
1096 | add edi, [used_buf] |
1097 | cmp dword [edi], 0 |
1097 | cmp dword [edi], 0 |
1098 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
1098 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
1099 | 1099 | ||
1100 | mov edx, dword [edi+4] |
1100 | mov edx, dword [edi+4] |
1101 | lea ebx, [edx+8] |
1101 | lea ebx, [edx+8] |
1102 | add ebx, [msg_size] |
1102 | add ebx, [msg_size] |
1103 | cmp ebx, [buf_size] |
1103 | cmp ebx, [buf_size] |
1104 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
1104 | ja .buffer_overflow ;esi<0 - not enough memory in buffer |
1105 | 1105 | ||
1106 | mov dword [edi+4], ebx |
1106 | mov dword [edi+4], ebx |
1107 | mov eax, [TASK_BASE] |
1107 | mov eax, [TASK_BASE] |
1108 | mov eax, [eax+0x04] ;eax - our PID |
1108 | mov eax, [eax+0x04] ;eax - our PID |
1109 | add edi, edx |
1109 | add edi, edx |
1110 | mov [edi], eax |
1110 | mov [edi], eax |
1111 | mov ecx, [msg_size] |
1111 | mov ecx, [msg_size] |
1112 | 1112 | ||
1113 | mov [edi+4], ecx |
1113 | mov [edi+4], ecx |
1114 | add edi, 8 |
1114 | add edi, 8 |
1115 | mov esi, [msg_addr] |
1115 | mov esi, [msg_addr] |
1116 | ; add esi, new_app_base |
1116 | ; add esi, new_app_base |
1117 | cld |
1117 | cld |
1118 | rep movsb |
1118 | rep movsb |
1119 | 1119 | ||
1120 | mov ebx, [ipc_tmp] |
1120 | mov ebx, [ipc_tmp] |
1121 | mov edx, ebx |
1121 | mov edx, ebx |
1122 | shr ebx, 12 |
1122 | shr ebx, 12 |
1123 | xor eax, eax |
1123 | xor eax, eax |
1124 | mov [page_tabs+ebx*4], eax |
1124 | mov [page_tabs+ebx*4], eax |
1125 | invlpg [edx] |
1125 | invlpg [edx] |
1126 | 1126 | ||
1127 | mov ebx, [ipc_pdir] |
1127 | mov ebx, [ipc_pdir] |
1128 | mov edx, ebx |
1128 | mov edx, ebx |
1129 | shr ebx, 12 |
1129 | shr ebx, 12 |
1130 | xor eax, eax |
1130 | xor eax, eax |
1131 | mov [page_tabs+ebx*4], eax |
1131 | mov [page_tabs+ebx*4], eax |
1132 | invlpg [edx] |
1132 | invlpg [edx] |
1133 | 1133 | ||
1134 | mov ebx, [ipc_ptab] |
1134 | mov ebx, [ipc_ptab] |
1135 | mov edx, ebx |
1135 | mov edx, ebx |
1136 | shr ebx, 12 |
1136 | shr ebx, 12 |
1137 | xor eax, eax |
1137 | xor eax, eax |
1138 | mov [page_tabs+ebx*4], eax |
1138 | mov [page_tabs+ebx*4], eax |
1139 | invlpg [edx] |
1139 | invlpg [edx] |
1140 | 1140 | ||
1141 | mov eax, [dst_slot] |
1141 | mov eax, [dst_slot] |
1142 | shl eax, 8 |
1142 | shl eax, 8 |
1143 | or [eax+SLOT_BASE+0xA8], dword 0x40 |
1143 | or [eax+SLOT_BASE+0xA8], dword 0x40 |
1144 | push 0 |
1144 | push 0 |
1145 | jmp .ret |
1145 | jmp .ret |
1146 | .no_pid: |
1146 | .no_pid: |
1147 | popf |
1147 | popf |
1148 | mov eax, 4 |
1148 | mov eax, 4 |
1149 | ret |
1149 | ret |
1150 | .no_ipc_area: |
1150 | .no_ipc_area: |
1151 | popf |
1151 | popf |
1152 | xor eax, eax |
1152 | xor eax, eax |
1153 | inc eax |
1153 | inc eax |
1154 | ret |
1154 | ret |
1155 | .ipc_blocked: |
1155 | .ipc_blocked: |
1156 | push 2 |
1156 | push 2 |
1157 | jmp .ret |
1157 | jmp .ret |
1158 | .buffer_overflow: |
1158 | .buffer_overflow: |
1159 | push 3 |
1159 | push 3 |
1160 | .ret: |
1160 | .ret: |
1161 | mov eax, [used_buf] |
1161 | mov eax, [used_buf] |
1162 | cmp eax, [ipc_tmp] |
1162 | cmp eax, [ipc_tmp] |
1163 | je @f |
1163 | je @f |
1164 | stdcall free_kernel_space, eax |
1164 | stdcall free_kernel_space, eax |
1165 | @@: |
1165 | @@: |
1166 | pop eax |
1166 | pop eax |
1167 | popf |
1167 | popf |
1168 | ret |
1168 | ret |
1169 | endp |
1169 | endp |
1170 | 1170 | ||
1171 | align 4 |
1171 | align 4 |
1172 | sysfn_meminfo: |
1172 | sysfn_meminfo: |
1173 | 1173 | ||
1174 | ; add ecx, new_app_base |
1174 | ; add ecx, new_app_base |
1175 | cmp ecx, OS_BASE |
1175 | cmp ecx, OS_BASE |
1176 | jae .fail |
1176 | jae .fail |
1177 | 1177 | ||
1178 | mov eax, [pg_data.pages_count] |
1178 | mov eax, [pg_data.pages_count] |
1179 | mov [ecx], eax |
1179 | mov [ecx], eax |
1180 | shl eax, 12 |
1180 | shl eax, 12 |
1181 | mov [esp+32], eax |
1181 | mov [esp+32], eax |
1182 | mov eax, [pg_data.pages_free] |
1182 | mov eax, [pg_data.pages_free] |
1183 | mov [ecx+4], eax |
1183 | mov [ecx+4], eax |
1184 | mov eax, [pg_data.pages_faults] |
1184 | mov eax, [pg_data.pages_faults] |
1185 | mov [ecx+8], eax |
1185 | mov [ecx+8], eax |
1186 | mov eax, [heap_size] |
1186 | mov eax, [heap_size] |
1187 | mov [ecx+12], eax |
1187 | mov [ecx+12], eax |
1188 | mov eax, [heap_free] |
1188 | mov eax, [heap_free] |
1189 | mov [ecx+16], eax |
1189 | mov [ecx+16], eax |
1190 | mov eax, [heap_blocks] |
1190 | mov eax, [heap_blocks] |
1191 | mov [ecx+20], eax |
1191 | mov [ecx+20], eax |
1192 | mov eax, [free_blocks] |
1192 | mov eax, [free_blocks] |
1193 | mov [ecx+24], eax |
1193 | mov [ecx+24], eax |
1194 | ret |
1194 | ret |
1195 | .fail: |
1195 | .fail: |
1196 | or dword [esp+32], -1 |
1196 | or dword [esp+32], -1 |
1197 | ret |
1197 | ret |
1198 | 1198 | ||
1199 | align 4 |
1199 | align 4 |
1200 | f68: |
1200 | f68: |
1201 | cmp ebx, 4 |
1201 | cmp ebx, 4 |
1202 | jbe sys_sheduler |
1202 | jbe sys_sheduler |
1203 | 1203 | ||
1204 | cmp ebx, 11 |
1204 | cmp ebx, 11 |
1205 | jb .fail |
1205 | jb .fail |
1206 | 1206 | ||
1207 | cmp ebx, 27 |
1207 | cmp ebx, 27 |
1208 | ja .fail |
1208 | ja .fail |
1209 | 1209 | ||
1210 | jmp dword [f68call+ebx*4-11*4] |
1210 | jmp dword [f68call+ebx*4-11*4] |
1211 | .11: |
1211 | .11: |
1212 | call init_heap |
1212 | call init_heap |
1213 | mov [esp+32], eax |
1213 | mov [esp+32], eax |
1214 | ret |
1214 | ret |
1215 | .12: |
1215 | .12: |
1216 | stdcall user_alloc, ecx |
1216 | stdcall user_alloc, ecx |
1217 | mov [esp+32], eax |
1217 | mov [esp+32], eax |
1218 | ret |
1218 | ret |
1219 | .13: |
1219 | .13: |
1220 | stdcall user_free, ecx |
1220 | stdcall user_free, ecx |
1221 | mov [esp+32], eax |
1221 | mov [esp+32], eax |
1222 | ret |
1222 | ret |
1223 | .14: |
1223 | .14: |
1224 | cmp ecx, OS_BASE |
1224 | cmp ecx, OS_BASE |
1225 | jae .fail |
1225 | jae .fail |
1226 | mov edi, ecx |
1226 | mov edi, ecx |
1227 | call get_event_ex |
1227 | call get_event_ex |
1228 | mov [esp+32], eax |
1228 | mov [esp+32], eax |
1229 | ret |
1229 | ret |
1230 | .16: |
1230 | .16: |
1231 | test ecx, ecx |
1231 | test ecx, ecx |
1232 | jz .fail |
1232 | jz .fail |
1233 | cmp ecx, OS_BASE |
1233 | cmp ecx, OS_BASE |
1234 | jae .fail |
1234 | jae .fail |
1235 | stdcall get_service, ecx |
1235 | stdcall get_service, ecx |
1236 | mov [esp+32], eax |
1236 | mov [esp+32], eax |
1237 | ret |
1237 | ret |
1238 | .17: |
1238 | .17: |
1239 | call srv_handlerEx ;ecx |
1239 | call srv_handlerEx ;ecx |
1240 | mov [esp+32], eax |
1240 | mov [esp+32], eax |
1241 | ret |
1241 | ret |
1242 | .19: |
1242 | .19: |
1243 | cmp ecx, OS_BASE |
1243 | cmp ecx, OS_BASE |
1244 | jae .fail |
1244 | jae .fail |
1245 | stdcall load_library, ecx |
1245 | stdcall load_library, ecx |
1246 | mov [esp+32], eax |
1246 | mov [esp+32], eax |
1247 | ret |
1247 | ret |
1248 | .20: |
1248 | .20: |
1249 | mov eax, edx |
1249 | mov eax, edx |
1250 | mov ebx, ecx |
1250 | mov ebx, ecx |
1251 | call user_realloc ;in: eax = pointer, ebx = new size |
1251 | call user_realloc ;in: eax = pointer, ebx = new size |
1252 | mov [esp+32], eax |
1252 | mov [esp+32], eax |
1253 | ret |
1253 | ret |
1254 | .21: |
1254 | .21: |
1255 | cmp ecx, OS_BASE |
1255 | cmp ecx, OS_BASE |
1256 | jae .fail |
1256 | jae .fail |
1257 | 1257 | ||
1258 | cmp edx, OS_BASE |
1258 | cmp edx, OS_BASE |
1259 | jae .fail |
1259 | jae .fail |
1260 | 1260 | ||
1261 | stdcall load_pe_driver, ecx, edx |
1261 | stdcall load_pe_driver, ecx, edx |
1262 | mov [esp+32], eax |
1262 | mov [esp+32], eax |
1263 | ret |
1263 | ret |
1264 | .22: |
1264 | .22: |
1265 | cmp ecx, OS_BASE |
1265 | cmp ecx, OS_BASE |
1266 | jae .fail |
1266 | jae .fail |
1267 | 1267 | ||
1268 | stdcall shmem_open, ecx, edx, esi |
1268 | stdcall shmem_open, ecx, edx, esi |
1269 | mov [esp+24], edx |
1269 | mov [esp+24], edx |
1270 | mov [esp+32], eax |
1270 | mov [esp+32], eax |
1271 | ret |
1271 | ret |
1272 | 1272 | ||
1273 | .23: |
1273 | .23: |
1274 | cmp ecx, OS_BASE |
1274 | cmp ecx, OS_BASE |
1275 | jae .fail |
1275 | jae .fail |
1276 | 1276 | ||
1277 | stdcall shmem_close, ecx |
1277 | stdcall shmem_close, ecx |
1278 | mov [esp+32], eax |
1278 | mov [esp+32], eax |
1279 | ret |
1279 | ret |
1280 | .24: |
1280 | .24: |
1281 | mov eax, [current_slot] |
1281 | mov eax, [current_slot] |
1282 | xchg ecx, [eax+APPDATA.exc_handler] |
1282 | xchg ecx, [eax+APPDATA.exc_handler] |
1283 | xchg edx, [eax+APPDATA.except_mask] |
1283 | xchg edx, [eax+APPDATA.except_mask] |
1284 | mov [esp+32], ecx ; reg_eax+8 |
1284 | mov [esp+32], ecx ; reg_eax+8 |
1285 | mov [esp+20], edx ; reg_ebx+8 |
1285 | mov [esp+20], edx ; reg_ebx+8 |
1286 | ret |
1286 | ret |
1287 | .25: |
1287 | .25: |
1288 | cmp ecx, 32 |
1288 | cmp ecx, 32 |
1289 | jae .fail |
1289 | jae .fail |
1290 | mov eax, [current_slot] |
1290 | mov eax, [current_slot] |
1291 | btr [eax+APPDATA.except_mask], ecx |
1291 | btr [eax+APPDATA.except_mask], ecx |
1292 | setc byte[esp+32] |
1292 | setc byte[esp+32] |
1293 | jecxz @f |
1293 | jecxz @f |
1294 | bts [eax+APPDATA.except_mask], ecx |
1294 | bts [eax+APPDATA.except_mask], ecx |
1295 | @@: |
1295 | @@: |
1296 | ret |
1296 | ret |
1297 | 1297 | ||
1298 | .26: |
1298 | .26: |
1299 | stdcall user_unmap, ecx, edx, esi |
1299 | stdcall user_unmap, ecx, edx, esi |
1300 | mov [esp+32], eax |
1300 | mov [esp+32], eax |
1301 | ret |
1301 | ret |
1302 | 1302 | ||
1303 | .27: |
1303 | .27: |
1304 | cmp ecx, OS_BASE |
1304 | cmp ecx, OS_BASE |
1305 | jae .fail |
1305 | jae .fail |
1306 | 1306 | ||
1307 | stdcall load_file_umode, ecx |
1307 | stdcall load_file_umode, ecx |
1308 | mov [esp+24], edx |
1308 | mov [esp+24], edx |
1309 | mov [esp+32], eax |
1309 | mov [esp+32], eax |
1310 | ret |
1310 | ret |
1311 | 1311 | ||
1312 | .fail: |
1312 | .fail: |
1313 | xor eax, eax |
1313 | xor eax, eax |
1314 | mov [esp+32], eax |
1314 | mov [esp+32], eax |
1315 | ret |
1315 | ret |
1316 | 1316 | ||
1317 | 1317 | ||
1318 | align 4 |
1318 | align 4 |
1319 | f68call: ; keep this table closer to main code |
1319 | f68call: ; keep this table closer to main code |
1320 | 1320 | ||
1321 | dd f68.11 ; init_heap |
1321 | dd f68.11 ; init_heap |
1322 | dd f68.12 ; user_alloc |
1322 | dd f68.12 ; user_alloc |
1323 | dd f68.13 ; user_free |
1323 | dd f68.13 ; user_free |
1324 | dd f68.14 ; get_event_ex |
1324 | dd f68.14 ; get_event_ex |
1325 | dd f68.fail ; moved to f68.24 |
1325 | dd f68.fail ; moved to f68.24 |
1326 | dd f68.16 ; get_service |
1326 | dd f68.16 ; get_service |
1327 | dd f68.17 ; call_service |
1327 | dd f68.17 ; call_service |
1328 | dd f68.fail ; moved to f68.25 |
1328 | dd f68.fail ; moved to f68.25 |
1329 | dd f68.19 ; load_dll |
1329 | dd f68.19 ; load_dll |
1330 | dd f68.20 ; user_realloc |
1330 | dd f68.20 ; user_realloc |
1331 | dd f68.21 ; load_driver |
1331 | dd f68.21 ; load_driver |
1332 | dd f68.22 ; shmem_open |
1332 | dd f68.22 ; shmem_open |
1333 | dd f68.23 ; shmem_close |
1333 | dd f68.23 ; shmem_close |
1334 | dd f68.24 ; set exception handler |
1334 | dd f68.24 ; set exception handler |
1335 | dd f68.25 ; unmask exception |
1335 | dd f68.25 ; unmask exception |
1336 | dd f68.26 ; user_unmap |
1336 | dd f68.26 ; user_unmap |
1337 | dd f68.27 ; load_file_umode |
1337 | dd f68.27 ; load_file_umode |
1338 | 1338 | ||
1339 | 1339 | ||
1340 | align 4 |
1340 | align 4 |
1341 | proc load_pe_driver stdcall, file:dword, cmdline:dword |
1341 | proc load_pe_driver stdcall, file:dword, cmdline:dword |
1342 | push esi |
1342 | push esi |
1343 | 1343 | ||
1344 | stdcall load_PE, [file] |
1344 | stdcall load_PE, [file] |
1345 | test eax, eax |
1345 | test eax, eax |
1346 | jz .fail |
1346 | jz .fail |
1347 | 1347 | ||
1348 | mov esi, eax |
1348 | mov esi, eax |
1349 | push [cmdline] |
1349 | push [cmdline] |
1350 | push DRV_ENTRY |
1350 | push DRV_ENTRY |
1351 | call eax |
1351 | call eax |
1352 | pop ecx |
1352 | pop ecx |
1353 | pop ecx |
1353 | pop ecx |
1354 | test eax, eax |
1354 | test eax, eax |
1355 | jz .fail |
1355 | jz .fail |
1356 | 1356 | ||
1357 | mov [eax+SRV.entry], esi |
1357 | mov [eax+SRV.entry], esi |
1358 | pop esi |
1358 | pop esi |
1359 | ret |
1359 | ret |
1360 | 1360 | ||
1361 | .fail: |
1361 | .fail: |
1362 | xor eax, eax |
1362 | xor eax, eax |
1363 | pop esi |
1363 | pop esi |
1364 | ret |
1364 | ret |
1365 | endp |
1365 | endp |
1366 | 1366 | ||
1367 | align 4 |
1367 | align 4 |
1368 | proc create_ring_buffer stdcall, size:dword, flags:dword |
1368 | proc create_ring_buffer stdcall, size:dword, flags:dword |
1369 | locals |
1369 | locals |
1370 | buf_ptr dd ? |
1370 | buf_ptr dd ? |
1371 | endl |
1371 | endl |
1372 | 1372 | ||
1373 | mov eax, [size] |
1373 | mov eax, [size] |
1374 | test eax, eax |
1374 | test eax, eax |
1375 | jz .fail |
1375 | jz .fail |
1376 | 1376 | ||
1377 | add eax, eax |
1377 | add eax, eax |
1378 | stdcall alloc_kernel_space, eax |
1378 | stdcall alloc_kernel_space, eax |
1379 | test eax, eax |
1379 | test eax, eax |
1380 | jz .fail |
1380 | jz .fail |
1381 | 1381 | ||
1382 | push ebx |
1382 | push ebx |
1383 | 1383 | ||
1384 | mov [buf_ptr], eax |
1384 | mov [buf_ptr], eax |
1385 | 1385 | ||
1386 | mov ebx, [size] |
1386 | mov ebx, [size] |
1387 | shr ebx, 12 |
1387 | shr ebx, 12 |
1388 | push ebx |
1388 | push ebx |
1389 | 1389 | ||
1390 | stdcall alloc_pages, ebx |
1390 | stdcall alloc_pages, ebx |
1391 | pop ecx |
1391 | pop ecx |
1392 | 1392 | ||
1393 | test eax, eax |
1393 | test eax, eax |
1394 | jz .mm_fail |
1394 | jz .mm_fail |
1395 | 1395 | ||
1396 | push edi |
1396 | push edi |
1397 | 1397 | ||
1398 | or eax, [flags] |
1398 | or eax, [flags] |
1399 | mov edi, [buf_ptr] |
1399 | mov edi, [buf_ptr] |
1400 | mov ebx, [buf_ptr] |
1400 | mov ebx, [buf_ptr] |
1401 | mov edx, ecx |
1401 | mov edx, ecx |
1402 | shl edx, 2 |
1402 | shl edx, 2 |
1403 | shr edi, 10 |
1403 | shr edi, 10 |
1404 | @@: |
1404 | @@: |
1405 | mov [page_tabs+edi], eax |
1405 | mov [page_tabs+edi], eax |
1406 | mov [page_tabs+edi+edx], eax |
1406 | mov [page_tabs+edi+edx], eax |
1407 | invlpg [ebx] |
1407 | invlpg [ebx] |
1408 | invlpg [ebx+0x10000] |
1408 | invlpg [ebx+0x10000] |
1409 | add eax, 0x1000 |
1409 | add eax, 0x1000 |
1410 | add ebx, 0x1000 |
1410 | add ebx, 0x1000 |
1411 | add edi, 4 |
1411 | add edi, 4 |
1412 | dec ecx |
1412 | dec ecx |
1413 | jnz @B |
1413 | jnz @B |
1414 | 1414 | ||
1415 | mov eax, [buf_ptr] |
1415 | mov eax, [buf_ptr] |
1416 | pop edi |
1416 | pop edi |
1417 | pop ebx |
1417 | pop ebx |
1418 | ret |
1418 | ret |
1419 | .mm_fail: |
1419 | .mm_fail: |
1420 | stdcall free_kernel_space, [buf_ptr] |
1420 | stdcall free_kernel_space, [buf_ptr] |
1421 | xor eax, eax |
1421 | xor eax, eax |
1422 | pop ebx |
1422 | pop ebx |
1423 | .fail: |
1423 | .fail: |
1424 | ret |
1424 | ret |
1425 | endp |
1425 | endp |
1426 | 1426 | ||
1427 | 1427 | ||
1428 | align 4 |
1428 | align 4 |
1429 | proc print_mem |
1429 | proc print_mem |
1430 | mov edi, BOOT_VAR + 0x9104 |
1430 | mov edi, BOOT_VAR + 0x9104 |
1431 | mov ecx, [edi-4] |
1431 | mov ecx, [edi-4] |
1432 | test ecx, ecx |
1432 | test ecx, ecx |
1433 | jz .done |
1433 | jz .done |
1434 | 1434 | ||
1435 | @@: |
1435 | @@: |
1436 | mov eax, [edi] |
1436 | mov eax, [edi] |
1437 | mov edx, [edi+4] |
1437 | mov edx, [edi+4] |
1438 | add eax, [edi+8] |
1438 | add eax, [edi+8] |
1439 | adc edx, [edi+12] |
1439 | adc edx, [edi+12] |
1440 | 1440 | ||
1441 | DEBUGF 1, "K : E820 %x%x - %x%x type %d\n", \ |
1441 | DEBUGF 1, "K : E820 %x%x - %x%x type %d\n", \ |
1442 | [edi+4], [edi],\ |
1442 | [edi+4], [edi],\ |
1443 | edx, eax, [edi+16] |
1443 | edx, eax, [edi+16] |
1444 | add edi, 20 |
1444 | add edi, 20 |
1445 | dec ecx |
1445 | dec ecx |
1446 | jnz @b |
1446 | jnz @b |
1447 | .done: |
1447 | .done: |
1448 | ret |
1448 | ret |
1449 | endp0>>=> |
1449 | endp0>>=> |