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| Rev 2434 | Rev 2437 | ||
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| Line 67... | Line 67... | ||
| 67 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
67 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| Line 68... | Line 68... | ||
| 68 | 68 | ||
| 69 | include 'macros.inc' |
69 | include 'macros.inc' |
| Line 70... | Line 70... | ||
| 70 | include 'struct.inc' |
70 | include 'struct.inc' |
| Line 71... | Line 71... | ||
| 71 | 71 | ||
| Line 72... | Line 72... | ||
| 72 | $Revision: 2434 $ |
72 | $Revision: 2437 $ |
| Line 159... | Line 159... | ||
| 159 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
159 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| Line 160... | Line 160... | ||
| 160 | 160 | ||
| Line -... | Line 161... | ||
| - | 161 | ||
| - | 162 | ; CR0 Flags - Protected mode and Paging |
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| 161 | 163 | ||
| Line 162... | Line 164... | ||
| 162 | ; CR0 Flags - Protected mode and Paging |
164 | align 16 |
| Line 163... | Line 165... | ||
| 163 | 165 | ||
| Line 196... | Line 198... | ||
| 196 | or eax, ecx |
198 | or eax, ecx |
| 197 | and eax, 10011111b *65536*256 + 0xffffff ; caching enabled |
199 | and eax, 10011111b *65536*256 + 0xffffff ; caching enabled |
| 198 | mov cr0, eax |
200 | mov cr0, eax |
| 199 | jmp pword os_code:B32 ; jmp to enable 32 bit mode |
201 | jmp pword os_code:B32 ; jmp to enable 32 bit mode |
| Line -... | Line 202... | ||
| - | 202 | ||
| - | 203 | include "boot/shutdown.inc" ; shutdown or restart |
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| - | 204 | ||
| - | 205 | include "data16.inc" |
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| - | 206 | ||
| - | 207 | align 4096 |
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| - | 208 | __ap_start_16: |
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| - | 209 | cli |
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| - | 210 | lgdt [cs:(tmp_gdt-__ap_start_16)] ; Load GDT |
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| - | 211 | mov eax, cr0 ; protected mode |
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| - | 212 | or eax, CR0_PE |
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| - | 213 | and eax, 10011111b *65536*256 + 0xffffff ; caching enabled |
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| - | 214 | mov cr0, eax |
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| - | 215 | jmp pword os_code:__ap_start_32 ; jmp to enable 32 bit mode |
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| 200 | 216 | ||
| 201 | align 8 |
217 | align 8 |
| Line 202... | Line 218... | ||
| 202 | tmp_gdt: |
218 | tmp_gdt: |
| 203 | 219 | ||
| Line 215... | Line 231... | ||
| 215 | dw 0x0000 |
231 | dw 0x0000 |
| 216 | db 0x00 |
232 | db 0x00 |
| 217 | dw 11011111b *256 +10010010b |
233 | dw 11011111b *256 +10010010b |
| 218 | db 0x00 |
234 | db 0x00 |
| Line 219... | Line -... | ||
| 219 | - | ||
| Line 220... | Line 235... | ||
| 220 | include "data16.inc" |
235 | |
| 221 | 236 | ||
| Line -... | Line 237... | ||
| - | 237 | use32 |
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| - | 238 | org $+0x10000 |
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| - | 239 | ||
| - | 240 | align 16 |
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| - | 241 | __ap_start_32: |
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| - | 242 | mov ax, os_stack ; Selector for os |
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| - | 243 | mov ds, ax |
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| - | 244 | mov es, ax |
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| - | 245 | mov fs, ax |
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| - | 246 | mov gs, ax |
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| - | 247 | mov ss, ax |
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| - | 248 | ||
| - | 249 | bt [cpu_caps-OS_BASE], CAPS_PSE |
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| - | 250 | jnc .no_PSE |
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| - | 251 | ||
| - | 252 | mov ebx, cr4 |
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| - | 253 | or ebx, CR4_PSE |
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| - | 254 | mov eax, PG_LARGE+PG_SW |
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| - | 255 | mov cr4, ebx |
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| - | 256 | .no_PSE: |
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| - | 257 | mov eax, sys_pgdir-OS_BASE |
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| - | 258 | mov cr3, eax |
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| - | 259 | ||
| - | 260 | mov eax, cr0 |
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| - | 261 | or eax, CR0_PG+CR0_WP |
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| - | 262 | mov cr0, eax |
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| - | 263 | ||
| 222 | use32 |
264 | lgdt [gdts] |
| 223 | org $+0x10000 |
265 | jmp pword os_code:ap_entry |
| 224 | 266 | ||
| 225 | align 4 |
267 | align 4 |
| 226 | B32: |
268 | B32: |
| Line 267... | Line 309... | ||
| 267 | call init_mem |
309 | call init_mem |
| 268 | call init_page_map |
310 | call init_page_map |
| Line 269... | Line 311... | ||
| 269 | 311 | ||
| Line -... | Line 312... | ||
| - | 312 | ; ENABLE PAGING |
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| - | 313 | ||
| 270 | ; ENABLE PAGING |
314 | xchg bx, bx |
| 271 | 315 | ||
| Line 272... | Line 316... | ||
| 272 | mov eax, sys_pgdir-OS_BASE |
316 | mov eax, sys_pgdir-OS_BASE |
| 273 | mov cr3, eax |
317 | mov cr3, eax |
| Line 281... | Line 325... | ||
| 281 | 325 | ||
| 282 | align 4 |
326 | align 4 |
| 283 | bios32_entry dd ? |
327 | bios32_entry dd ? |
| Line 284... | Line -... | ||
| 284 | tmp_page_tabs dd ? |
- | |
| 285 | - | ||
| 286 | use16 |
- | |
| 287 | org $-0x10000 |
- | |
| 288 | include "boot/shutdown.inc" ; shutdown or restart |
- | |
| Line 289... | Line 328... | ||
| 289 | org $+0x10000 |
328 | tmp_page_tabs dd ? |
| 290 | use32 |
329 | |
| 291 | 330 | ||
| Line 292... | Line 331... | ||
| 292 | __DEBUG__ fix 1 |
331 | __DEBUG__ fix 1 |
| Line -... | Line 332... | ||
| - | 332 | __DEBUG_LEVEL__ fix 1 |
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| - | 333 | include 'init.inc' |
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| - | 334 | ||
| - | 335 | org OS_BASE+$ |
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| - | 336 | ||
| - | 337 | ap_entry: |
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| - | 338 | bt [cpu_caps], CAPS_PGE |
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| - | 339 | jnc @F |
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| - | 340 | ||
| - | 341 | mov ebx, cr4 |
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| - | 342 | or ebx, CR4_PGE |
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| - | 343 | mov cr4, ebx |
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| - | 344 | @@: |
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| - | 345 | .1: |
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| - | 346 | mov ebx, LFB_BASE |
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| - | 347 | mov edx, 128 |
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| - | 348 | .2: |
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| - | 349 | mov ecx, 128 |
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| - | 350 | mov edi, ebx |
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| - | 351 | mov eax, [_display.width] |
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| - | 352 | lea ebx, [ebx+eax*4] |
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| - | 353 | mov eax, 0xFF808080 |
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| - | 354 | rep stosd |
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| - | 355 | dec edx |
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| - | 356 | jnz .2 |
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| 293 | __DEBUG_LEVEL__ fix 1 |
357 | jmp .1 |
| 294 | include 'init.inc' |
358 | |
| 295 | 359 | hlt |
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| 296 | org OS_BASE+$ |
360 | jmp ap_entry |
| 297 | 361 | ||
| Line 315... | Line 379... | ||
| 315 | 379 | ||
| 316 | mov ebx, cr4 |
380 | mov ebx, cr4 |
| 317 | or ebx, CR4_PGE |
381 | or ebx, CR4_PGE |
| 318 | mov cr4, ebx |
382 | mov cr4, ebx |
| 319 | @@: |
383 | @@: |
| 320 | xor eax, eax |
384 | ; xor eax, eax |
| 321 | mov dword [sys_pgdir], eax |
385 | ; mov dword [sys_pgdir], eax |
| Line 322... | Line 386... | ||
| 322 | mov dword [sys_pgdir+4], eax |
386 | ; mov dword [sys_pgdir+4], eax |
| 323 | 387 | ||
| Line 324... | Line 388... | ||
| 324 | mov eax, cr3 |
388 | ; mov eax, cr3 |
| 325 | mov cr3, eax ; flush TLB |
389 | ; mov cr3, eax ; flush TLB |
| Line 326... | Line 390... | ||
| 326 | 390 | ||
| Line 617... | Line 681... | ||
| 617 | call PIT_init |
681 | call PIT_init |
| Line 618... | Line 682... | ||
| 618 | 682 | ||
| 619 | ; Try to Initialize APIC |
683 | ; Try to Initialize APIC |
| Line -... | Line 684... | ||
| - | 684 | call APIC_init |
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| - | 685 | ||
| 620 | call APIC_init |
686 | call LAPIC_init |
| 621 | 687 | ||
| 622 | ; Enable timer IRQ (IRQ0) and hard drives IRQs (IRQ14, IRQ15) |
688 | ; Enable timer IRQ (IRQ0) and hard drives IRQs (IRQ14, IRQ15) |
| 623 | ; they are used: when partitions are scanned, hd_read relies on timer |
689 | ; they are used: when partitions are scanned, hd_read relies on timer |
| 624 | call unmask_timer |
690 | call unmask_timer |