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1 | 1 | ||
2 | # Copyright (c) 2005 Ondrej Palkovsky |
2 | # Copyright (c) 2005 Ondrej Palkovsky |
3 | # Copyright (c) 2006 Martin Decky |
3 | # Copyright (c) 2006 Martin Decky |
- | 4 | # Copyright (c) 2008 Jakub Jermar |
|
4 | # All rights reserved. |
5 | # All rights reserved. |
5 | # |
6 | # |
6 | # Redistribution and use in source and binary forms, with or without |
7 | # Redistribution and use in source and binary forms, with or without |
7 | # modification, are permitted provided that the following conditions |
8 | # modification, are permitted provided that the following conditions |
8 | # are met: |
9 | # are met: |
Line 52... | Line 53... | ||
52 | .long 0 |
53 | .long 0 |
53 | .long multiboot_image_start |
54 | .long multiboot_image_start |
54 | 55 | ||
55 | multiboot_image_start: |
56 | multiboot_image_start: |
56 | movl $START_STACK, %esp # initialize stack pointer |
57 | movl $START_STACK, %esp # initialize stack pointer |
57 | lgdt bootstrap_gdtr # initialize Global Descriptor Table register |
58 | lgdtl bootstrap_gdtr # initialize Global Descriptor Table register |
58 | 59 | ||
59 | movw $gdtselector(KDATA_DES), %cx |
60 | movw $gdtselector(KDATA_DES), %cx |
60 | movw %cx, %es |
61 | movw %cx, %es |
61 | movw %cx, %ds # kernel data + stack |
62 | movw %cx, %ds # kernel data + stack |
62 | movw %cx, %ss |
63 | movw %cx, %ss |
Line 67... | Line 68... | ||
67 | movw %cx, %gs |
68 | movw %cx, %gs |
68 | 69 | ||
69 | jmpl $gdtselector(KTEXT32_DES), $multiboot_meeting_point |
70 | jmpl $gdtselector(KTEXT32_DES), $multiboot_meeting_point |
70 | multiboot_meeting_point: |
71 | multiboot_meeting_point: |
71 | 72 | ||
72 | movl %eax, grub_eax # save parameters from GRUB |
73 | movl %eax, grub_eax # save parameters from GRUB |
73 | movl %ebx, grub_ebx |
74 | movl %ebx, grub_ebx |
74 | 75 | ||
75 | # Protected 32-bit. We want to reuse the code-seg descriptor, |
76 | # Protected 32-bit. We want to reuse the code-seg descriptor, |
76 | # the Default operand size must not be 1 when entering long mode |
77 | # the Default operand size must not be 1 when entering long mode |
77 | 78 | ||
Line 154... | Line 155... | ||
154 | leal ptl_0, %eax |
155 | leal ptl_0, %eax |
155 | movl %eax, %cr3 |
156 | movl %eax, %cr3 |
156 | 157 | ||
157 | # Enable long mode |
158 | # Enable long mode |
158 | 159 | ||
159 | movl $EFER_MSR_NUM, %ecx # EFER MSR number |
160 | movl $EFER_MSR_NUM, %ecx # EFER MSR number |
160 | rdmsr # Read EFER |
161 | rdmsr # Read EFER |
161 | btsl $AMD_LME_FLAG, %eax # Set LME = 1 |
162 | btsl $AMD_LME_FLAG, %eax # Set LME = 1 |
162 | wrmsr # Write EFER |
163 | wrmsr # Write EFER |
163 | 164 | ||
164 | # Enable paging to activate long mode (set CR0.PG = 1) |
165 | # Enable paging to activate long mode (set CR0.PG = 1) |
165 | 166 | ||
166 | movl %cr0, %eax |
167 | movl %cr0, %eax |
Line 175... | Line 176... | ||
175 | start64: |
176 | start64: |
176 | movq $(PA2KA(START_STACK)), %rsp |
177 | movq $(PA2KA(START_STACK)), %rsp |
177 | movl grub_eax, %eax |
178 | movl grub_eax, %eax |
178 | movl grub_ebx, %ebx |
179 | movl grub_ebx, %ebx |
179 | 180 | ||
180 | cmpl $MULTIBOOT_LOADER_MAGIC, %eax # compare GRUB signature |
181 | cmpl $MULTIBOOT_LOADER_MAGIC, %eax # compare GRUB signature |
181 | je valid_boot |
182 | je valid_boot |
182 | 183 | ||
183 | xorl %ecx, %ecx # no memory size or map available |
184 | xorl %ecx, %ecx # no memory size or map available |
184 | movl %ecx, e801memorysize |
185 | movl %ecx, e801memorysize |
185 | movl %ecx, e820counter |
186 | movl %ecx, e820counter |
186 | 187 | ||
187 | jmp invalid_boot |
188 | jmp invalid_boot |
188 | 189 | ||
189 | valid_boot: |
190 | valid_boot: |
190 | 191 | ||
191 | movl (%ebx), %eax # ebx = physical address of struct multiboot_info |
192 | movl (%ebx), %eax # ebx = physical address of struct multiboot_info |
192 | 193 | ||
193 | bt $0, %eax # mbi->flags[0] (mem_lower, mem_upper valid) |
194 | bt $0, %eax # mbi->flags[0] (mem_lower, mem_upper valid) |
194 | jc mem_valid |
195 | jc mem_valid |
195 | 196 | ||
196 | xorl %ecx, %ecx |
197 | xorl %ecx, %ecx |
197 | jmp mem_invalid |
198 | jmp mem_invalid |
198 | 199 | ||
199 | mem_valid: |
200 | mem_valid: |
200 | movl 4(%ebx), %ecx # mbi->mem_lower |
201 | movl 4(%ebx), %ecx # mbi->mem_lower |
201 | addl 8(%ebx), %ecx # mbi->mem_upper |
202 | addl 8(%ebx), %ecx # mbi->mem_upper |
202 | 203 | ||
203 | mem_invalid: |
204 | mem_invalid: |
204 | movl %ecx, e801memorysize |
205 | movl %ecx, e801memorysize |
205 | 206 | ||
206 | bt $3, %eax # mbi->flags[3] (mods_count, mods_addr valid) |
207 | bt $3, %eax # mbi->flags[3] (mods_count, mods_addr valid) |
207 | jc mods_valid |
208 | jc mods_valid |
208 | 209 | ||
209 | xorq %rcx, %rcx |
210 | xorq %rcx, %rcx |
210 | movq %rcx, init |
211 | movq %rcx, init |
211 | jmp mods_end |
212 | jmp mods_end |
212 | 213 | ||
213 | mods_valid: |
214 | mods_valid: |
214 | 215 | ||
215 | xorq %rcx, %rcx |
216 | xorq %rcx, %rcx |
216 | movl 20(%ebx), %ecx # mbi->mods_count |
217 | movl 20(%ebx), %ecx # mbi->mods_count |
217 | movq %rcx, init |
218 | movq %rcx, init |
218 | 219 | ||
219 | cmpl $0, %ecx |
220 | cmpl $0, %ecx |
220 | je mods_end |
221 | je mods_end |
221 | 222 | ||
222 | movl 24(%ebx), %esi # mbi->mods_addr |
223 | movl 24(%ebx), %esi # mbi->mods_addr |
223 | movq $init, %rdi |
224 | movq $init, %rdi |
224 | 225 | ||
225 | mods_loop: |
226 | mods_loop: |
226 | 227 | ||
227 | xorq %rdx, %rdx |
228 | xorq %rdx, %rdx |
228 | movl 0(%esi), %edx # mods->mod_start |
229 | movl 0(%esi), %edx # mods->mod_start |
229 | movq $0xffff800000000000, %r10 |
230 | movq $0xffff800000000000, %r10 |
230 | addq %r10, %rdx |
231 | addq %r10, %rdx |
231 | movq %rdx, 8(%rdi) |
232 | movq %rdx, 8(%rdi) |
232 | 233 | ||
233 | xorq %rdx, %rdx |
234 | xorq %rdx, %rdx |
234 | movl 4(%esi), %edx |
235 | movl 4(%esi), %edx |
235 | subl 0(%esi), %edx # mods->mod_end - mods->mod_start |
236 | subl 0(%esi), %edx # mods->mod_end - mods->mod_start |
236 | movq %rdx, 16(%rdi) |
237 | movq %rdx, 16(%rdi) |
237 | 238 | ||
238 | addl $16, %esi |
239 | addl $16, %esi |
239 | addq $16, %rdi |
240 | addq $16, %rdi |
240 | 241 | ||
241 | loop mods_loop |
242 | loop mods_loop |
242 | 243 | ||
243 | mods_end: |
244 | mods_end: |
244 | 245 | ||
245 | bt $6, %eax # mbi->flags[6] (mmap_length, mmap_addr valid) |
246 | bt $6, %eax # mbi->flags[6] (mmap_length, mmap_addr valid) |
246 | jc mmap_valid |
247 | jc mmap_valid |
247 | 248 | ||
248 | xorl %edx, %edx |
249 | xorl %edx, %edx |
249 | jmp mmap_invalid |
250 | jmp mmap_invalid |
250 | 251 | ||
251 | mmap_valid: |
252 | mmap_valid: |
252 | movl 44(%ebx), %ecx # mbi->mmap_length |
253 | movl 44(%ebx), %ecx # mbi->mmap_length |
253 | movl 48(%ebx), %esi # mbi->mmap_addr |
254 | movl 48(%ebx), %esi # mbi->mmap_addr |
254 | movq $e820table, %rdi |
255 | movq $e820table, %rdi |
255 | xorl %edx, %edx |
256 | xorl %edx, %edx |
256 | 257 | ||
257 | mmap_loop: |
258 | mmap_loop: |
258 | cmpl $0, %ecx |
259 | cmpl $0, %ecx |
259 | jle mmap_end |
260 | jle mmap_end |
260 | 261 | ||
261 | movl 4(%esi), %eax # mmap->base_addr_low |
262 | movl 4(%esi), %eax # mmap->base_addr_low |
262 | movl %eax, (%rdi) |
263 | movl %eax, (%rdi) |
263 | 264 | ||
264 | movl 8(%esi), %eax # mmap->base_addr_high |
265 | movl 8(%esi), %eax # mmap->base_addr_high |
265 | movl %eax, 4(%rdi) |
266 | movl %eax, 4(%rdi) |
266 | 267 | ||
267 | movl 12(%esi), %eax # mmap->length_low |
268 | movl 12(%esi), %eax # mmap->length_low |
268 | movl %eax, 8(%rdi) |
269 | movl %eax, 8(%rdi) |
269 | 270 | ||
270 | movl 16(%esi), %eax # mmap->length_high |
271 | movl 16(%esi), %eax # mmap->length_high |
271 | movl %eax, 12(%rdi) |
272 | movl %eax, 12(%rdi) |
272 | 273 | ||
273 | movl 20(%esi), %eax # mmap->type |
274 | movl 20(%esi), %eax # mmap->type |
274 | movl %eax, 16(%rdi) |
275 | movl %eax, 16(%rdi) |
275 | 276 | ||
276 | movl (%esi), %eax # mmap->size |
277 | movl (%esi), %eax # mmap->size |
277 | addl $0x4, %eax |
278 | addl $0x4, %eax |
278 | addl %eax, %esi |
279 | addl %eax, %esi |
279 | subl %eax, %ecx |
280 | subl %eax, %ecx |
280 | addq $MEMMAP_E820_RECORD_SIZE, %rdi |
281 | addq $MEMMAP_E820_RECORD_SIZE, %rdi |
281 | incl %edx |
282 | incl %edx |
Line 429... | Line 430... | ||
429 | mov VESA_MODE_ATTRIBUTES_OFFSET(%di), %ax |
430 | mov VESA_MODE_ATTRIBUTES_OFFSET(%di), %ax |
430 | push %di |
431 | push %di |
431 | mov $vga323 - vesa_init, %di |
432 | mov $vga323 - vesa_init, %di |
432 | mov $0x100, %ecx |
433 | mov $0x100, %ecx |
433 | 434 | ||
434 | bt $5, %ax # Test if VGA compatible registers are present |
435 | bt $5, %ax # Test if VGA compatible registers are present |
435 | jnc vga_compat |
436 | jnc vga_compat |
436 | 437 | ||
437 | # Try VESA routine to set palette |
438 | # Try VESA routine to set palette |
438 | 439 | ||
439 | mov $VESA_SET_PALETTE, %ax |
440 | mov $VESA_SET_PALETTE, %ax |
Line 445... | Line 446... | ||
445 | 446 | ||
446 | vga_compat: |
447 | vga_compat: |
447 | 448 | ||
448 | # Try VGA registers to set palette |
449 | # Try VGA registers to set palette |
449 | 450 | ||
450 | movw $0x3c6, %dx # Set palette mask |
451 | movw $0x3c6, %dx # Set palette mask |
451 | movb $0xff, %al |
452 | movb $0xff, %al |
452 | outb %al, %dx |
453 | outb %al, %dx |
453 | 454 | ||
454 | movw $0x3c8, %dx # First index to set |
455 | movw $0x3c8, %dx # First index to set |
455 | xor %al, %al |
456 | xor %al, %al |
456 | outb %al, %dx |
457 | outb %al, %dx |
457 | 458 | ||
458 | movw $0x3c9, %dx # Data port |
459 | movw $0x3c9, %dx # Data port |
459 | vga_loop: |
460 | vga_loop: |
460 | movb %es:2(%di), %al |
461 | movb %es:2(%di), %al |
461 | outb %al, %dx |
462 | outb %al, %dx |
462 | 463 | ||
463 | movb %es:1(%di), %al |
464 | movb %es:1(%di), %al |
Line 510... | Line 511... | ||
510 | jz 2b # Force relative jump |
511 | jz 2b # Force relative jump |
511 | 512 | ||
512 | 1: |
513 | 1: |
513 | mov $0x0003, %ax |
514 | mov $0x0003, %ax |
514 | int $0x10 |
515 | int $0x10 |
515 | mov $0xffffffff, %edi # EGA text mode used, because of problems with VESA |
516 | mov $0xffffffff, %edi # EGA text mode used, because of problems with VESA |
516 | xor %ax, %ax |
517 | xor %ax, %ax |
517 | jz 8b # Force relative jump |
518 | jz 8b # Force relative jump |
518 | 519 | ||
519 | vga323: |
520 | vga323: |
520 | #include "vga323.pal" |
521 | #include "vga323.pal" |
521 | 522 | ||
522 | .code32 |
523 | .code32 |
523 | vesa_init_protect: |
524 | vesa_init_protect: |
524 | movw $gdtselector(KDATA_DES), %cx |
525 | movw $gdtselector(KDATA_DES), %cx |
525 | movw %cx, %es |
526 | movw %cx, %es |
526 | movw %cx, %ds # kernel data + stack |
527 | movw %cx, %ds # kernel data + stack |
527 | movw %cx, %ss |
528 | movw %cx, %ss |
528 | # Simics seems to remove hidden part of GS on entering user mode |
529 | # Simics seems to remove hidden part of GS on entering user mode |
529 | # when _visible_ part of GS does not point to user-mode segment |
530 | # when _visible_ part of GS does not point to user-mode segment |
530 | movw $gdtselector(UDATA_DES), %cx |
531 | movw $gdtselector(UDATA_DES), %cx |
531 | movw %cx, %fs |
532 | movw %cx, %fs |
532 | movw %cx, %gs |
533 | movw %cx, %gs |
533 | 534 | ||
534 | movl $START_STACK, %esp # initialize stack pointer |
535 | movl $START_STACK, %esp # initialize stack pointer |
535 | 536 | ||
536 | jmpl $gdtselector(KTEXT32_DES), $vesa_meeting_point |
537 | jmpl $gdtselector(KTEXT32_DES), $vesa_meeting_point |
537 | 538 | ||
538 | .align 4 |
539 | .align 4 |
539 | e_vesa_init: |
540 | e_vesa_init: |
540 | #endif |
541 | #endif |
541 | 542 | ||
542 | # Print string from %esi to EGA display (in red) and halt |
543 | # Print string from %esi to EGA display (in red) and halt |
543 | error_halt: |
544 | error_halt: |
544 | movl $0xb8000, %edi # base of EGA text mode memory |
545 | movl $0xb8000, %edi # base of EGA text mode memory |
545 | xorl %eax, %eax |
546 | xorl %eax, %eax |
546 | 547 | ||
547 | movw $0x3d4, %dx # read bits 8 - 15 of the cursor address |
548 | movw $0x3d4, %dx # read bits 8 - 15 of the cursor address |
548 | movb $0xe, %al |
549 | movb $0xe, %al |
549 | outb %al, %dx |
550 | outb %al, %dx |
550 | 551 | ||
551 | movw $0x3d5, %dx |
552 | movw $0x3d5, %dx |
552 | inb %dx, %al |
553 | inb %dx, %al |
553 | shl $8, %ax |
554 | shl $8, %ax |
554 | 555 | ||
555 | movw $0x3d4, %dx # read bits 0 - 7 of the cursor address |
556 | movw $0x3d4, %dx # read bits 0 - 7 of the cursor address |
556 | movb $0xf, %al |
557 | movb $0xf, %al |
557 | outb %al, %dx |
558 | outb %al, %dx |
558 | 559 | ||
559 | movw $0x3d5, %dx |
560 | movw $0x3d5, %dx |
560 | inb %dx, %al |
561 | inb %dx, %al |
561 | 562 | ||
562 | cmp $1920, %ax |
563 | cmp $1920, %ax |
563 | jbe cursor_ok |
564 | jbe cursor_ok |
564 | movw $1920, %ax # sanity check for the cursor on the last line |
565 | movw $1920, %ax # sanity check for the cursor on the last line |
565 | cursor_ok: |
566 | cursor_ok: |
566 | 567 | ||
567 | movw %ax, %bx |
568 | movw %ax, %bx |
568 | shl $1, %eax |
569 | shl $1, %eax |
569 | addl %eax, %edi |
570 | addl %eax, %edi |
570 | 571 | ||
571 | movw $0x0c00, %ax # black background, light red foreground |
572 | movw $0x0c00, %ax # black background, light red foreground |
572 | cld |
573 | cld |
573 | 574 | ||
574 | ploop: |
575 | ploop: |
575 | lodsb |
576 | lodsb |
576 | cmp $0, %al |
577 | cmp $0, %al |
Line 578... | Line 579... | ||
578 | stosw |
579 | stosw |
579 | inc %bx |
580 | inc %bx |
580 | jmp ploop |
581 | jmp ploop |
581 | ploop_end: |
582 | ploop_end: |
582 | 583 | ||
583 | movw $0x3d4, %dx # write bits 8 - 15 of the cursor address |
584 | movw $0x3d4, %dx # write bits 8 - 15 of the cursor address |
584 | movb $0xe, %al |
585 | movb $0xe, %al |
585 | outb %al, %dx |
586 | outb %al, %dx |
586 | 587 | ||
587 | movw $0x3d5, %dx |
588 | movw $0x3d5, %dx |
588 | movb %bh, %al |
589 | movb %bh, %al |
589 | outb %al, %dx |
590 | outb %al, %dx |
590 | 591 | ||
591 | movw $0x3d4, %dx # write bits 0 - 7 of the cursor address |
592 | movw $0x3d4, %dx # write bits 0 - 7 of the cursor address |
592 | movb $0xf, %al |
593 | movb $0xf, %al |
593 | outb %al, %dx |
594 | outb %al, %dx |
594 | 595 | ||
595 | movw $0x3d5, %dx |
596 | movw $0x3d5, %dx |
596 | movb %bl, %al |
597 | movb %bl, %al |
597 | outb %al, %dx |
598 | outb %al, %dx |
598 | 599 | ||
599 | cli |
600 | cli |
600 | hlt |
601 | hlt |
601 | 602 | ||
- | 603 | ||
602 | .section K_DATA_START, "aw", @progbits |
604 | .section K_INI_PTLS, "aw", @progbits |
- | 605 | ||
- | 606 | # |
|
- | 607 | # Macro for generating initial page table contents. |
|
- | 608 | # @param cnt Number of entries to generat. Must be multiple of 8. |
|
- | 609 | # @param g Number of GB that will be added to the mapping. |
|
- | 610 | # |
|
- | 611 | .macro ptl2gen cnt g |
|
- | 612 | .if \cnt |
|
- | 613 | ptl2gen "\cnt - 8" \g |
|
- | 614 | .quad ((\cnt - 8) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 615 | .quad ((\cnt - 7) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 616 | .quad ((\cnt - 6) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 617 | .quad ((\cnt - 5) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 618 | .quad ((\cnt - 4) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 619 | .quad ((\cnt - 3) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 620 | .quad ((\cnt - 2) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 621 | .quad ((\cnt - 1) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 622 | .endif |
|
- | 623 | .endm |
|
- | 624 | ||
- | 625 | # Page table for pages in the first gigabyte. |
|
603 | .align 4096 |
626 | .align 4096 |
- | 627 | .global ptl_2_0g |
|
- | 628 | ptl_2_0g: |
|
- | 629 | ptl2gen 512 0 |
|
- | 630 | ||
- | 631 | # Page table for pages in the second gigabyte. |
|
- | 632 | .align 4096 |
|
- | 633 | .global ptl_2_1g |
|
- | 634 | ptl_2_1g: |
|
- | 635 | ptl2gen 512 1 |
|
- | 636 | ||
- | 637 | # Page table for pages in the third gigabyte. |
|
- | 638 | .align 4096 |
|
- | 639 | .global ptl_2_2g |
|
- | 640 | ptl_2_2g: |
|
- | 641 | ptl2gen 512 2 |
|
- | 642 | ||
- | 643 | # Page table for pages in the fourth gigabyte. |
|
- | 644 | .align 4096 |
|
- | 645 | .global ptl_2_3g |
|
- | 646 | ptl_2_3g: |
|
- | 647 | ptl2gen 512 3 |
|
604 | 648 | ||
605 | # Identical mapping of first 64MB and the same of -2GB -> 0 |
- | |
606 | .global ptl_2 |
- | |
607 | ptl_2: |
- | |
608 | .quad 0x0 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
609 | .quad 0x200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
610 | .quad 0x400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
611 | .quad 0x600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
612 | .quad 0x800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
613 | .quad 0xa00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
614 | .quad 0xc00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
615 | .quad 0xe00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
616 | .quad 0x1000000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
617 | .quad 0x1200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
618 | .quad 0x1400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
619 | .quad 0x1600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
620 | .quad 0x1800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
621 | .quad 0x1a00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
622 | .quad 0x1c00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
623 | .quad 0x1e00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
624 | .quad 0x2000000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
625 | .quad 0x2200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
626 | .quad 0x2400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
627 | .quad 0x2600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
628 | .quad 0x2800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
629 | .quad 0x2a00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
630 | .quad 0x2c00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
631 | .quad 0x2e00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
632 | .quad 0x3000000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
633 | .quad 0x3200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
634 | .quad 0x3400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
635 | .quad 0x3600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
636 | .quad 0x3800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
637 | .quad 0x3a00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
638 | .quad 0x3c00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
639 | .quad 0x3e00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
640 | - | ||
641 | .align 4096 |
649 | .align 4096 |
642 | .global ptl_1 |
650 | .global ptl_1 |
643 | ptl_1: |
651 | ptl_1: |
- | 652 | # Identity mapping for [0; 4G) |
|
644 | .quad ptl_2 + (PTL_WRITABLE | PTL_PRESENT) |
653 | .quad ptl_2_0g + (PTL_WRITABLE | PTL_PRESENT) |
- | 654 | .quad ptl_2_1g + (PTL_WRITABLE | PTL_PRESENT) |
|
- | 655 | .quad ptl_2_2g + (PTL_WRITABLE | PTL_PRESENT) |
|
- | 656 | .quad ptl_2_3g + (PTL_WRITABLE | PTL_PRESENT) |
|
645 | .fill 509,8,0 |
657 | .fill 506, 8, 0 |
- | 658 | # Mapping of [0; 1G) at -2G |
|
646 | .quad ptl_2 + (PTL_WRITABLE | PTL_PRESENT) |
659 | .quad ptl_2_0g + (PTL_WRITABLE | PTL_PRESENT) |
647 | .fill 1,8,0 |
660 | .fill 1, 8, 0 |
648 | 661 | ||
649 | .align 4096 |
662 | .align 4096 |
650 | .global ptl_0 |
663 | .global ptl_0 |
651 | ptl_0: |
664 | ptl_0: |
652 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
665 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
653 | .fill 255,8,0 |
666 | .fill 255,8,0 |
654 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
667 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
655 | .fill 254,8,0 |
668 | .fill 254,8,0 |
656 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
669 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
657 | 670 | ||
- | 671 | .section K_DATA_START, "aw", @progbits |
|
- | 672 | ||
658 | .global bootstrap_gdtr |
673 | .global bootstrap_gdtr |
659 | bootstrap_gdtr: |
674 | bootstrap_gdtr: |
660 | .word gdtselector(GDT_ITEMS) |
675 | .word gdtselector(GDT_ITEMS) |
661 | .long KA2PA(gdt) |
676 | .long KA2PA(gdt) |
662 | 677 |