source: mainline/kernel/arch/amd64/src/boot/multiboot.S@ 4fc93d5

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 4fc93d5 was f66c203d, checked in by Martin Decky <martin@…>, 13 years ago

explicitly load default BIOS IDT for real-mode VESA BIOS access (GRUB 2.00 setups an empty IDT for bootstrap)
always use an empty IDT during bootstrap (for consistency)
make sure the interrupts are disabled during bootstrap
make sure correct GDT is set after returning from VESA BIOS
  • Property mode set to 100644
File size: 14.1 KB
RevLine 
[873c681]1/*
2 * Copyright (c) 2005 Ondrej Palkovsky
3 * Copyright (c) 2006 Martin Decky
4 * Copyright (c) 2008 Jakub Jermar
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * - The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
[1141c1a]30
[46d26ee]31#include <arch/boot/boot.h>
[a1f60f3]32#include <arch/mm/page.h>
[6f878b7]33#include <arch/mm/ptl.h>
[8fc0d455]34#include <arch/pm.h>
[1f5c9c96]35#include <genarch/multiboot/multiboot.h>
[c4b3e3e]36#include <arch/cpuid.h>
[1f5c9c96]37#include <arch/cpu.h>
[1141c1a]38
[873c681]39#define START_STACK (BOOT_OFFSET - BOOT_STACK_SIZE)
[421c833]40
[874e312a]41.section K_TEXT_START, "ax"
[46d26ee]42
[8ccec3c1]43.code32
[873c681]44
45.macro pm_error msg
46 movl \msg, %esi
47 jmp pm_error_halt
48.endm
49
50.macro pm_status msg
51#ifdef CONFIG_EGA
52 pushl %esi
53 movl \msg, %esi
54 call pm_early_puts
55 popl %esi
56#endif
57.endm
58
59.macro pm2_status msg
60#ifndef CONFIG_FB
61 pm_status \msg
62#endif
63.endm
64
[8ccec3c1]65.align 4
[46d26ee]66.global multiboot_image_start
[8ccec3c1]67multiboot_header:
68 .long MULTIBOOT_HEADER_MAGIC
69 .long MULTIBOOT_HEADER_FLAGS
[873c681]70 .long -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS) /* checksum */
[8725fb4]71 .long multiboot_header
72 .long unmapped_ktext_start
[8ccec3c1]73 .long 0
74 .long 0
[8725fb4]75 .long multiboot_image_start
[8ccec3c1]76
77multiboot_image_start:
[f66c203d]78 cli
[e13daa5d]79 cld
[421c833]80
[873c681]81 /* Initialize stack pointer */
82 movl $START_STACK, %esp
83
[f66c203d]84 /*
85 * Initialize Global Descriptor Table and
86 * Interrupt Descriptor Table registers
87 */
[873c681]88 lgdtl bootstrap_gdtr
[f66c203d]89 lidtl bootstrap_idtr
[873c681]90
91 /* Kernel data + stack */
[1d3d2cf]92 movw $GDT_SELECTOR(KDATA_DES), %cx
[1a67595]93 movw %cx, %es
[873c681]94 movw %cx, %ds
[1a67595]95 movw %cx, %ss
[421c833]96
[873c681]97 /*
98 * Simics seems to remove hidden part of GS on entering user mode
99 * when _visible_ part of GS does not point to user-mode segment.
100 */
[1d3d2cf]101 movw $GDT_SELECTOR(UDATA_DES), %cx
[65640fef]102 movw %cx, %fs
103 movw %cx, %gs
[1a67595]104
[1d3d2cf]105 jmpl $GDT_SELECTOR(KTEXT32_DES), $multiboot_meeting_point
[1a67595]106 multiboot_meeting_point:
107
[1f5c9c96]108 /*
109 * Protected 32-bit. We want to reuse the code-seg descriptor,
110 * the Default operand size must not be 1 when entering long mode.
111 */
112
113 /* Save multiboot arguments */
114 movl %eax, multiboot_eax
115 movl %ebx, multiboot_ebx
[46d26ee]116
[873c681]117 pm_status $status_prot
[ac88c93]118
[421c833]119 movl $(INTEL_CPUID_EXTENDED), %eax
120 cpuid
121 cmp $(INTEL_CPUID_EXTENDED), %eax
[4fb6bf36]122 ja extended_cpuid_supported
[421c833]123
[873c681]124 pm_error $err_extended_cpuid
[4fb6bf36]125
126 extended_cpuid_supported:
127
128 movl $(AMD_CPUID_EXTENDED), %eax
[ac88c93]129 cpuid
[4fb6bf36]130 bt $(AMD_EXT_LONG_MODE), %edx
[421c833]131 jc long_mode_supported
132
[873c681]133 pm_error $err_long_mode
[421c833]134
[ac88c93]135 long_mode_supported:
136
[4fb6bf36]137 bt $(AMD_EXT_NOEXECUTE), %edx
138 jc noexecute_supported
139
[873c681]140 pm_error $err_noexecute
[4fb6bf36]141
142 noexecute_supported:
143
144 movl $(INTEL_CPUID_STANDARD), %eax
145 cpuid
146 bt $(INTEL_FXSAVE), %edx
[421c833]147 jc fx_supported
[4fb6bf36]148
[873c681]149 pm_error $err_fx
[4fb6bf36]150
151 fx_supported:
152
153 bt $(INTEL_SSE2), %edx
[421c833]154 jc sse2_supported
[4fb6bf36]155
[873c681]156 pm_error $err_sse2
[4fb6bf36]157
158 sse2_supported:
[873c681]159
[421c833]160#include "vesa_prot.inc"
[873c681]161
162 pm2_status $status_prot2
163
164 /*
165 * Enable 64-bit page translation entries - CR4.PAE = 1.
166 * Paging is not enabled until after long mode is enabled.
167 */
[8725fb4]168
[6f878b7]169 movl %cr4, %eax
170 btsl $5, %eax
171 movl %eax, %cr4
[421c833]172
[873c681]173 /* Set up paging tables */
[6f878b7]174 leal ptl_0, %eax
175 movl %eax, %cr3
[c4b3e3e]176
[873c681]177 /* Enable long mode */
178 movl $EFER_MSR_NUM, %ecx
179 rdmsr /* read EFER */
180 btsl $AMD_LME_FLAG, %eax /* set LME = 1 */
181 wrmsr
[8725fb4]182
[873c681]183 /* Enable paging to activate long mode (set CR0.PG = 1) */
[6f878b7]184 movl %cr0, %eax
185 btsl $31, %eax
186 movl %eax, %cr0
[c245372b]187
[873c681]188 /* At this point we are in compatibility mode */
[1d3d2cf]189 jmpl $GDT_SELECTOR(KTEXT_DES), $start64
[c245372b]190
[873c681]191/** Print string to EGA display (in light red) and halt.
192 *
193 * Should be executed from 32 bit protected mode with paging
194 * turned off. Stack is not required. This routine is used even
195 * if CONFIG_EGA is not enabled. Since we are going to halt the
196 * CPU anyway, it is always better to at least try to print
197 * some hints.
198 *
[da52547]199 * @param %esi Pointer to the NULL-terminated string
200 * to be print.
[873c681]201 *
202 */
203pm_error_halt:
204 movl $0xb8000, %edi /* base of EGA text mode memory */
205 xorl %eax, %eax
206
207 /* Read bits 8 - 15 of the cursor address */
208 movw $0x3d4, %dx
209 movb $0xe, %al
210 outb %al, %dx
211
212 movw $0x3d5, %dx
213 inb %dx, %al
214 shl $8, %ax
215
216 /* Read bits 0 - 7 of the cursor address */
217 movw $0x3d4, %dx
218 movb $0xf, %al
219 outb %al, %dx
220
221 movw $0x3d5, %dx
222 inb %dx, %al
223
224 /* Sanity check for the cursor on screen */
225 cmp $2000, %ax
226 jb err_cursor_ok
227
228 movw $1998, %ax
229
230 err_cursor_ok:
231
232 movw %ax, %bx
233 shl $1, %eax
234 addl %eax, %edi
235
236 err_ploop:
237 lodsb
238
239 cmp $0, %al
240 je err_ploop_end
241
242 movb $0x0c, %ah /* black background, light red foreground */
243 stosw
244
245 /* Sanity check for the cursor on the last line */
246 inc %bx
247 cmp $2000, %bx
248 jb err_ploop
249
250 /* Scroll the screen (24 rows) */
251 movl %esi, %edx
252 movl $0xb80a0, %esi
253 movl $0xb8000, %edi
[22c3444]254 movl $960, %ecx
255 rep movsl
[873c681]256
257 /* Clear the 24th row */
258 xorl %eax, %eax
[22c3444]259 movl $40, %ecx
260 rep stosl
[873c681]261
262 /* Go to row 24 */
263 movl %edx, %esi
264 movl $0xb8f00, %edi
265 movw $1920, %bx
266
267 jmp err_ploop
268 err_ploop_end:
269
270 /* Write bits 8 - 15 of the cursor address */
271 movw $0x3d4, %dx
272 movb $0xe, %al
273 outb %al, %dx
274
275 movw $0x3d5, %dx
276 movb %bh, %al
277 outb %al, %dx
278
279 /* Write bits 0 - 7 of the cursor address */
280 movw $0x3d4, %dx
281 movb $0xf, %al
282 outb %al, %dx
283
284 movw $0x3d5, %dx
285 movb %bl, %al
286 outb %al, %dx
287
288 cli
289 hlt1:
290 hlt
291 jmp hlt1
292
293/** Print string to EGA display (in light green).
294 *
295 * Should be called from 32 bit protected mode with paging
296 * turned off. A stack space of at least 24 bytes is required,
297 * but the function does not establish a stack frame.
298 *
299 * Macros such as pm_status and pm2_status take care that
300 * this function is used only when CONFIG_EGA is enabled
301 * and CONFIG_FB is disabled.
302 *
[da52547]303 * @param %esi Pointer to the NULL-terminated string
304 * to be print.
[873c681]305 *
306 */
307pm_early_puts:
308 pushl %eax
309 pushl %ebx
310 pushl %ecx
311 pushl %edx
312 pushl %edi
313
314 movl $0xb8000, %edi /* base of EGA text mode memory */
315 xorl %eax, %eax
316
317 /* Read bits 8 - 15 of the cursor address */
318 movw $0x3d4, %dx
319 movb $0xe, %al
320 outb %al, %dx
321
322 movw $0x3d5, %dx
323 inb %dx, %al
324 shl $8, %ax
325
326 /* Read bits 0 - 7 of the cursor address */
327 movw $0x3d4, %dx
328 movb $0xf, %al
329 outb %al, %dx
330
331 movw $0x3d5, %dx
332 inb %dx, %al
333
334 /* Sanity check for the cursor on screen */
335 cmp $2000, %ax
336 jb pm_puts_cursor_ok
337
338 movw $1998, %ax
339
340 pm_puts_cursor_ok:
341
342 movw %ax, %bx
343 shl $1, %eax
344 addl %eax, %edi
345
346 pm_puts_ploop:
347 lodsb
348
349 cmp $0, %al
350 je pm_puts_ploop_end
351
352 movb $0x0a, %ah /* black background, light green foreground */
353 stosw
354
355 /* Sanity check for the cursor on the last line */
356 inc %bx
357 cmp $2000, %bx
358 jb pm_puts_ploop
359
360 /* Scroll the screen (24 rows) */
361 movl %esi, %edx
362 movl $0xb80a0, %esi
363 movl $0xb8000, %edi
[22c3444]364 movl $960, %ecx
365 rep movsl
[873c681]366
367 /* Clear the 24th row */
368 xorl %eax, %eax
[22c3444]369 movl $40, %ecx
370 rep stosl
[873c681]371
372 /* Go to row 24 */
373 movl %edx, %esi
374 movl $0xb8f00, %edi
375 movw $1920, %bx
376
377 jmp pm_puts_ploop
378 pm_puts_ploop_end:
379
380 /* Write bits 8 - 15 of the cursor address */
381 movw $0x3d4, %dx
382 movb $0xe, %al
383 outb %al, %dx
384
385 movw $0x3d5, %dx
386 movb %bh, %al
387 outb %al, %dx
388
389 /* Write bits 0 - 7 of the cursor address */
390 movw $0x3d4, %dx
391 movb $0xf, %al
392 outb %al, %dx
393
394 movw $0x3d5, %dx
395 movb %bl, %al
396 outb %al, %dx
397
398 popl %edi
399 popl %edx
400 popl %ecx
401 popl %ebx
402 popl %eax
403
404 ret
405
[6f878b7]406.code64
[873c681]407
408.macro long_status msg
409 pushq %rdi
410 movq \msg, %rdi
411 call early_puts
412 popq %rdi
413.endm
414
[6f878b7]415start64:
[873c681]416
417 /*
418 * Long mode.
419 */
420
[c4b3e3e]421 movq $(PA2KA(START_STACK)), %rsp
[421c833]422
[873c681]423 /* Create the first stack frame */
424 pushq $0
425 movq %rsp, %rbp
426
427 long_status $status_long
428
[1f5c9c96]429 /* Call arch_pre_main(multiboot_eax, multiboot_ebx) */
[5d8d71e]430 xorq %rdi, %rdi
[1f5c9c96]431 movl multiboot_eax, %edi
[5d8d71e]432 xorq %rsi, %rsi
[1f5c9c96]433 movl multiboot_ebx, %esi
[a1f60f3]434
435 movabsq $arch_pre_main, %rax
436 callq *%rax
[8778271]437
[873c681]438 long_status $status_main
[a1f60f3]439
[873c681]440 /* Call main_bsp() */
[a1f60f3]441 movabsq $main_bsp, %rax
442 call *%rax
[7cb567cd]443
[873c681]444 /* Not reached */
[421c833]445 cli
446 hlt0:
447 hlt
448 jmp hlt0
[ac88c93]449
[873c681]450/** Print string to EGA display.
451 *
452 * Should be called from long mode (with paging enabled
453 * and stack established). This function is ABI compliant
454 * (without red-zone).
455 *
456 * If CONFIG_EGA is undefined or CONFIG_FB is defined
457 * then this function does nothing.
458 *
[da52547]459 * @param %rdi Pointer to the NULL-terminated string
460 * to be printed.
[873c681]461 *
462 */
463early_puts:
464
465#if ((defined(CONFIG_EGA)) && (!defined(CONFIG_FB)))
466
467 /* Prologue, save preserved registers */
468 pushq %rbp
469 movq %rsp, %rbp
470 pushq %rbx
[ac88c93]471
[873c681]472 movq %rdi, %rsi
473 movq $(PA2KA(0xb8000)), %rdi /* base of EGA text mode memory */
474 xorq %rax, %rax
475
476 /* Read bits 8 - 15 of the cursor address */
477 movw $0x3d4, %dx
[ac88c93]478 movb $0xe, %al
479 outb %al, %dx
480
481 movw $0x3d5, %dx
482 inb %dx, %al
483 shl $8, %ax
484
[873c681]485 /* Read bits 0 - 7 of the cursor address */
486 movw $0x3d4, %dx
[ac88c93]487 movb $0xf, %al
488 outb %al, %dx
489
490 movw $0x3d5, %dx
491 inb %dx, %al
492
[873c681]493 /* Sanity check for the cursor on screen */
494 cmp $2000, %ax
495 jb early_puts_cursor_ok
[421c833]496
[873c681]497 movw $1998, %ax
[421c833]498
[873c681]499 early_puts_cursor_ok:
[ac88c93]500
501 movw %ax, %bx
[873c681]502 shl $1, %rax
503 addq %rax, %rdi
[ac88c93]504
[873c681]505 early_puts_ploop:
[ac88c93]506 lodsb
[873c681]507
[ac88c93]508 cmp $0, %al
[873c681]509 je early_puts_ploop_end
510
511 movb $0x0e, %ah /* black background, yellow foreground */
[ac88c93]512 stosw
[873c681]513
514 /* Sanity check for the cursor on the last line */
[421c833]515 inc %bx
[873c681]516 cmp $2000, %bx
517 jb early_puts_ploop
518
519 /* Scroll the screen (24 rows) */
520 movq %rsi, %rdx
521 movq $(PA2KA(0xb80a0)), %rsi
522 movq $(PA2KA(0xb8000)), %rdi
[e80329d6]523 movl $480, %ecx
[22c3444]524 rep movsq
[873c681]525
526 /* Clear the 24th row */
[e80329d6]527 xorl %eax, %eax
528 movl $20, %ecx
[22c3444]529 rep stosq
[873c681]530
531 /* Go to row 24 */
532 movq %rdx, %rsi
533 movq $(PA2KA(0xb8f00)), %rdi
534 movw $1920, %bx
535
536 jmp early_puts_ploop
537 early_puts_ploop_end:
538
539 /* Write bits 8 - 15 of the cursor address */
540 movw $0x3d4, %dx
[ac88c93]541 movb $0xe, %al
542 outb %al, %dx
543
544 movw $0x3d5, %dx
545 movb %bh, %al
546 outb %al, %dx
547
[873c681]548 /* Write bits 0 - 7 of the cursor address */
549 movw $0x3d4, %dx
[ac88c93]550 movb $0xf, %al
551 outb %al, %dx
552
553 movw $0x3d5, %dx
554 movb %bl, %al
555 outb %al, %dx
[421c833]556
[873c681]557 /* Epilogue, restore preserved registers */
558 popq %rbx
559 leave
560
561#endif
562
563 ret
[421c833]564
565#include "vesa_real.inc"
[19077a5]566
567.section K_INI_PTLS, "aw", @progbits
568
[873c681]569/** Generate initial page table contents.
570 *
571 * @param cnt Number of entries to generate. Must be multiple of 8.
572 * @param g Number of GB that will be added to the mapping.
573 *
574 */
[a1f60f3]575.macro ptl2gen cnt g
[64f6ef04]576 .if \cnt
577 ptl2gen "\cnt - 8" \g
578 .quad ((\cnt - 8) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
579 .quad ((\cnt - 7) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
580 .quad ((\cnt - 6) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
581 .quad ((\cnt - 5) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
582 .quad ((\cnt - 4) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
583 .quad ((\cnt - 3) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
584 .quad ((\cnt - 2) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
585 .quad ((\cnt - 1) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
586 .endif
[19077a5]587.endm
588
[873c681]589/* Page table for pages in the 1st gigabyte. */
[1141c1a]590.align 4096
[a1f60f3]591ptl_2_0g:
[19077a5]592 ptl2gen 512 0
593
[873c681]594/* Page table for pages in the 2nd gigabyte. */
[19077a5]595.align 4096
596ptl_2_1g:
597 ptl2gen 512 1
598
[873c681]599/* Page table for pages in the 3rd gigabyte. */
[19077a5]600.align 4096
601ptl_2_2g:
602 ptl2gen 512 2
603
[873c681]604/* Page table for pages in the 4th gigabyte. */
[19077a5]605.align 4096
606ptl_2_3g:
607 ptl2gen 512 3
[b9e97fb]608
[873c681]609/* Page table for pages in the 5th gigabyte. */
[64f6ef04]610.align 4096
611ptl_2_4g:
[fef504a]612 ptl2gen 512 4
[64f6ef04]613
[873c681]614/* Page table for pages in the 6th gigabyte. */
[64f6ef04]615.align 4096
616ptl_2_5g:
[fef504a]617 ptl2gen 512 5
[64f6ef04]618
[873c681]619/* Page table for pages in the 7th gigabyte. */
[64f6ef04]620.align 4096
621ptl_2_6g:
[fef504a]622 ptl2gen 512 6
[64f6ef04]623
[873c681]624/* Page table for pages in the 8th gigabyte. */
[64f6ef04]625.align 4096
626ptl_2_7g:
[fef504a]627 ptl2gen 512 7
[64f6ef04]628
[6f878b7]629.align 4096
630ptl_1:
[873c681]631 /* Identity mapping for [0; 8G) */
[19077a5]632 .quad ptl_2_0g + (PTL_WRITABLE | PTL_PRESENT)
[a1f60f3]633 .quad ptl_2_1g + (PTL_WRITABLE | PTL_PRESENT)
[19077a5]634 .quad ptl_2_2g + (PTL_WRITABLE | PTL_PRESENT)
635 .quad ptl_2_3g + (PTL_WRITABLE | PTL_PRESENT)
[64f6ef04]636 .quad ptl_2_4g + (PTL_WRITABLE | PTL_PRESENT)
637 .quad ptl_2_5g + (PTL_WRITABLE | PTL_PRESENT)
638 .quad ptl_2_6g + (PTL_WRITABLE | PTL_PRESENT)
639 .quad ptl_2_7g + (PTL_WRITABLE | PTL_PRESENT)
640 .fill 504, 8, 0
[421c833]641
[6f878b7]642.align 4096
643.global ptl_0
644ptl_0:
645 .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT)
[a1f60f3]646 .fill 255, 8, 0
[6f878b7]647 .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT)
[a1f60f3]648 .fill 255, 8, 0
[6f878b7]649
[19077a5]650.section K_DATA_START, "aw", @progbits
651
[f66c203d]652.global bootstrap_idtr
653bootstrap_idtr:
654 .word 0
655 .long 0
656
[1f5c9c96]657.global bootstrap_gdtr
[46d26ee]658bootstrap_gdtr:
[1d3d2cf]659 .word GDT_SELECTOR(GDT_ITEMS)
[1a67595]660 .long KA2PA(gdt)
[46d26ee]661
[1f5c9c96]662.global multiboot_eax
663multiboot_eax:
[46d26ee]664 .long 0
665
[1f5c9c96]666.global multiboot_ebx
667multiboot_ebx:
[46d26ee]668 .long 0
[ac88c93]669
[873c681]670err_extended_cpuid:
[fccc236]671 .asciz "Error: Extended CPUID not supported -- CPU is not 64-bit. System halted."
[873c681]672err_long_mode:
[fccc236]673 .asciz "Error: 64-bit long mode not supported. System halted."
[873c681]674err_noexecute:
[fccc236]675 .asciz "Error: No-execute pages not supported. System halted."
[873c681]676err_fx:
[fccc236]677 .asciz "Error: FXSAVE/FXRESTORE instructions not supported. System halted."
[873c681]678err_sse2:
[fccc236]679 .asciz "Error: SSE2 instructions not supported. System halted."
[873c681]680
681status_prot:
682 .asciz "[prot] "
683status_vesa_copy:
684 .asciz "[vesa_copy] "
[1f5c9c96]685status_multiboot_cmdline:
686 .asciz "[multiboot_cmdline] "
[873c681]687status_vesa_real:
688 .asciz "[vesa_real] "
689status_prot2:
690 .asciz "[prot2] "
691status_long:
692 .asciz "[long] "
693status_main:
694 .asciz "[main] "
Note: See TracBrowser for help on using the repository browser.