WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/amd64/src/boot/boot.S


#
# Copyright (C) 2005 Ondrej Palkovsky
# Copyright (C) 2006 Martin Decky
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in the
#   documentation and/or other materials provided with the distribution.
# - The name of the author may not be used to endorse or promote products
#   derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
 
#include <arch/boot/boot.h>
#include <arch/boot/memmap.h>
#include <arch/mm/page.h>	
#include <arch/mm/ptl.h>
#include <arch/pm.h>
#include <arch/cpu.h>
#include <arch/cpuid.h>
 
#define START_STACK	(BOOT_OFFSET - BOOT_STACK_SIZE)
	
.section K_TEXT_START, "ax"
 
.code32
.align 4
.global multiboot_image_start
multiboot_header:
	.long MULTIBOOT_HEADER_MAGIC
	.long MULTIBOOT_HEADER_FLAGS
	.long -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)	# checksum
	.long multiboot_header
	.long unmapped_ktext_start
	.long 0
	.long 0
	.long multiboot_image_start
 
multiboot_image_start:
	movl $START_STACK, %esp			# initialize stack pointer
	lgdt bootstrap_gdtr				# initialize Global Descriptor Table register
 
	movw $gdtselector(KDATA_DES), %cx
	movw %cx, %es
	movw %cx, %ds							# kernel data + stack
	movw %cx, %ss
	# Simics seems to remove hidden part of GS on entering user mode
	#  when _visible_ part of GS does not point to user-mode segment
	movw $gdtselector(UDATA_DES), %cx
	movw %cx, %fs
	movw %cx, %gs
	
	jmpl $gdtselector(KTEXT32_DES), $multiboot_meeting_point
	multiboot_meeting_point:
	
	movl %eax, grub_eax							# save parameters from GRUB
	movl %ebx, grub_ebx
	
#ifdef CONFIG_FB
	mov $vesa_init,%esi;
	mov $VESA_INIT_SEGMENT<<4,%edi;
	mov $e_vesa_init-vesa_init,%ecx;
	cld;
	rep movsb;
 
	mov $VESA_INIT_SEGMENT<<4,%edi;
	call *%edi;
	mov %esi,KA2PA(vesa_ph_addr);
	mov %di,KA2PA(vesa_height);
	shr $16,%edi;
	mov %di,KA2PA(vesa_width);
	mov %bx,KA2PA(vesa_scanline);
	shr $16,%ebx;
	mov %bx,KA2PA(vesa_bpp);
#endif	
 
	# Protected 32-bit. We want to reuse the code-seg descriptor,
	# the Default operand size must not be 1 when entering long mode
	
	movl $0x80000000, %eax  
 	cpuid
 	cmp $0x80000000, %eax						# any function > 80000000h?
	jbe long_mode_unsupported
	movl $(AMD_CPUID_EXTENDED), %eax			# Extended function code 80000001
	cpuid
	bt $29, %edx								# Test if long mode is supported.
 	jc long_mode_supported
 
	long_mode_unsupported:
		cli
		hlt
	
	long_mode_supported:
	
	# Enable 64-bit page transaltion entries - CR4.PAE = 1.
	# Paging is not enabled until after long mode is enabled
	
	movl %cr4, %eax
	btsl $5, %eax
	movl %eax, %cr4
 
	# Set up paging tables
	
	leal ptl_0, %eax
	movl %eax, %cr3
	
	# Enable long mode
	
	movl $EFER_MSR_NUM, %ecx	# EFER MSR number
	rdmsr						# Read EFER
	btsl $AMD_LME_FLAG, %eax	# Set LME=1
	wrmsr						# Write EFER
	
	# Enable paging to activate long mode (set CR0.PG=1)
	
	movl %cr0, %eax
	btsl $31, %eax
	movl %eax, %cr0
	
	# At this point we are in compatibility mode
	
	jmpl $gdtselector(KTEXT_DES), $start64
 
.code64
start64:
	movq $(PA2KA(START_STACK)), %rsp
	movl grub_eax, %eax
	movl grub_ebx, %ebx
	
	cmpl $MULTIBOOT_LOADER_MAGIC, %eax				# compare GRUB signature
	je valid_boot
		
		xorl %ecx, %ecx							# no memory size or map available
		movl %ecx, e801memorysize
		movl %ecx, e820counter
		
		jmp invalid_boot
		
	valid_boot:
		
		movl (%ebx), %eax						# ebx = physical address of struct multiboot_info
		
		bt $0, %eax								# mbi->flags[0] (mem_lower, mem_upper valid)
		jc mem_valid
			
			xorl %ecx, %ecx
			jmp mem_invalid
			
		mem_valid:
		movl 4(%ebx), %ecx						# mbi->mem_lower
		addl 8(%ebx), %ecx						# mbi->mem_upper
		
		mem_invalid:
		movl %ecx, e801memorysize
		
		bt $3, %eax								# mbi->flags[3] (mods_count, mods_addr valid)
		jc mods_valid
			
			xorq %rcx, %rcx
			movq %rcx, init
			jmp mods_end
		
		mods_valid:
		
		xorq %rcx, %rcx
		movl 20(%ebx), %ecx						# mbi->mods_count
		movq %rcx, init
		
		cmpl $0, %ecx
		je mods_end
		
		movl 24(%ebx), %esi						# mbi->mods_addr
		movq $init, %rdi
		
		mods_loop:
			
			xorq %rdx, %rdx
			movl 0(%esi), %edx					# mods->mod_start
			movq $0xffff800000000000, %r10
			addq %r10, %rdx
			movq %rdx, 8(%rdi)
			
			xorq %rdx, %rdx
			movl 4(%esi), %edx
			subl 0(%esi), %edx					# mods->mod_end - mods->mod_start
			movq %rdx, 16(%rdi)
			
			addl $16, %esi
			addq $16, %rdi
			
			loop mods_loop
			
		mods_end:
		
		bt $6, %eax								# mbi->flags[6] (mmap_length, mmap_addr valid)	
		jc mmap_valid
			
			xorl %edx, %edx
			jmp mmap_invalid
			
		mmap_valid:
		movl 44(%ebx), %ecx						# mbi->mmap_length
		movl 48(%ebx), %esi						# mbi->mmap_addr
		movq $e820table, %rdi
		xorl %edx, %edx
		
		mmap_loop:
			cmpl $0, %ecx
			jle mmap_end
			
			movl 4(%esi), %eax					# mmap->base_addr_low
			movl %eax, (%rdi)
			
			movl 8(%esi), %eax					# mmap->base_addr_high
			movl %eax, 4(%rdi)
			
			movl 12(%esi), %eax					# mmap->length_low
			movl %eax, 8(%rdi)
			
			movl 16(%esi), %eax					# mmap->length_high
			movl %eax, 12(%rdi)
			
			movl 20(%esi), %eax					# mmap->type
			movl %eax, 16(%rdi)
			
			movl (%esi), %eax					# mmap->size
			addl $0x4, %eax
			addl %eax, %esi
			subl %eax, %ecx
			addq $MEMMAP_E820_RECORD_SIZE, %rdi
			incl %edx
			jmp mmap_loop
		
		mmap_end:
		
		mmap_invalid:
		movl %edx, e820counter
		
	invalid_boot:
	
#ifdef CONFIG_SMP
	
	# copy AP bootstrap routines below 1 MB
	
	movq $BOOT_OFFSET, %rsi
	movq $AP_BOOT_OFFSET, %rdi
	movq $_hardcoded_unmapped_size, %rcx
	cld
	rep movsb
	
#endif
	
	call main_bsp   # never returns
	
	cli
	hlt
 
#ifdef CONFIG_FB
.code32
vesa_init:
	jmp $gdtselector(VESA_INIT_DES),$vesa_init_real-vesa_init;
.code16
vesa_init_real:	
 
	mov %cr0,%eax;
	and $~1,%eax;
	mov %eax,%cr0;
 
 
	jmp $VESA_INIT_SEGMENT,$vesa_init_real2-vesa_init;
 
vesa_init_real2:	
 
 
	mov %esp,%ebp;
	mov %ss,%cx;
	mov $VESA_INIT_SEGMENT,%bx;
	mov %bx,%ss;
	mov $0x0000fffc,%esp;
	push %ds;
	push %es;
	push %fs;
	push %gs;
	push %ebp;
	push %cx;
 
	mov %bx,%ds;
	mov %bx,%es;
	mov %bx,%fs;
	mov %bx,%gs;
 
	
	mov $vesa_idt-vesa_init,%ebx;
	lidtl (%ebx);
 
#define VESA_INFO_SIZE 1024
 
#define VESA_MODE_LIST_PTR_OFFSET 14 
#define VESA_MODE_WIDTH_OFFSET 18
#define VESA_MODE_HEIGHT_OFFSET 20
#define VESA_MODE_BPP_OFFSET 25
#define VESA_MODE_SCANLINE_OFFSET 16
#define VESA_MODE_PHADDR_OFFSET 40
 
#define VESA_END_OF_MODES 0xffff 
 
#define VESA_OK 0x4f 
 
#define VESA_GET_INFO 0x4f00 
#define VESA_GET_MODE_INFO 0x4f01
#define VESA_SET_MODE 0x4f02
 
#define CONFIG_VESA_BPP_a 255
 
#if CONFIG_VESA_BPP==24
#undef CONFIG_VESA_BPP_a
#define CONFIG_VESA_BPP_a 32
#endif
 
 
	mov $VESA_GET_INFO,%ax;
	mov $e_vesa_init-vesa_init,%di
	push %di;
	int $0x10;	
	pop %di;
	cmp $VESA_OK,%al;
	jnz 0f;
	mov 2+VESA_MODE_LIST_PTR_OFFSET(%di),%si;
	mov %si,%gs;
	mov VESA_MODE_LIST_PTR_OFFSET(%di),%si;
 
	add $VESA_INFO_SIZE,%di;
 
1:# Try next mode
	mov %gs:(%si),%cx;
	cmp $VESA_END_OF_MODES,%cx;
	jz 0f;
	inc %si;
	inc %si;
	push %cx;
	push %di;
	push %si;
	mov $VESA_GET_MODE_INFO,%ax;
	int $0x10;
	pop %si;
	pop %di;
	pop %cx;
	cmp $VESA_OK,%al;
	jnz 0f;
 
 
	mov $CONFIG_VESA_WIDTH,%ax;
	cmp VESA_MODE_WIDTH_OFFSET(%di),%ax;
	jnz 1b;
	mov $CONFIG_VESA_HEIGHT,%ax;
	cmp VESA_MODE_HEIGHT_OFFSET(%di),%ax;
	jnz 1b;
	mov $CONFIG_VESA_BPP,%al;
	cmp VESA_MODE_BPP_OFFSET(%di),%al;
	jz 2f;
	mov $CONFIG_VESA_BPP_a,%al;
	cmp VESA_MODE_BPP_OFFSET(%di),%al;
	jnz 1b;
 
2:
 
	mov %cx,%bx;
	or $0xC000,%bx;
	push %di;
	mov $VESA_SET_MODE,%ax;
	int $0x10;
	pop %di;
	cmp $VESA_OK,%al;
	jnz 0f;
	
	mov VESA_MODE_PHADDR_OFFSET(%di),%esi;
	mov VESA_MODE_WIDTH_OFFSET(%di),%ax;
	shl $16,%eax;
	mov VESA_MODE_HEIGHT_OFFSET(%di),%ax;
	mov VESA_MODE_BPP_OFFSET(%di),%bl;
	xor %bh,%bh;
	shl $16,%ebx;
	mov VESA_MODE_SCANLINE_OFFSET(%di),%bx;
	mov %eax,%edi; 
	
	
 
8:	
 
	mov %cr0,%eax;
	or $1,%eax;
	mov %eax,%cr0;
 
	jmp 9f;
9:
 
	pop %cx;
	pop %ebp;
	pop %gs;
	pop %fs;
	pop %es;
	pop %ds;
	mov %cx,%ss;
	mov %ebp,%esp;
 
	ljmpl $gdtselector(KTEXT32_DES),$(vesa_init_protect-vesa_init+VESA_INIT_SEGMENT<<4);
 
 
 
 
 
 
 
0:#Error no Prefered mode found
  mov $0x111,%cx;
  push %di;
  push %cx;
  mov $VESA_GET_MODE_INFO,%ax;
  int $0x10;
  pop %cx;
  pop %di;
  cmp $VESA_OK,%al;
  jnz 1f;
  jz 2b;    /* Force relative jump */
 
																																	
1:mov $0x0003,%ax;
  int $0x10;
  mov $0xffffffff,%edi; /* EGA text mode used, because of problems with VESA */
  xor %ax,%ax
  jz 8b;    /* Force relative jump */
																																																								
 
vesa_init_protect:	
.code32
	ret;
 
 
vesa_idt:
.word 0x03ff
.long 0
.align 4
e_vesa_init:
#endif	
 
 
				
.section K_DATA_START, "aw", @progbits
.align 4096
 
# Identical mapping of first 64MB and the same of -2GB -> 0	
.global ptl_2
ptl_2:	
	.quad 0x0 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0xa00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0xc00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0xe00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x1000000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x1200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x1400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x1600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x1800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x1a00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x1c00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x1e00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x2000000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x2200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x2400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x2600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x2800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x2a00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x2c00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x2e00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x3000000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x3200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x3400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x3600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x3800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x3a00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x3c00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	.quad 0x3e00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE)
	
.align 4096
.global ptl_1
ptl_1:
	.quad ptl_2 + (PTL_WRITABLE | PTL_PRESENT)
	.fill 509,8,0
	.quad ptl_2 + (PTL_WRITABLE | PTL_PRESENT)
	.fill 1,8,0
	
.align 4096
.global ptl_0
ptl_0:
	.quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT)
	.fill 255,8,0
	.quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT)
	.fill 254,8,0
	.quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT)
 
.global bootstrap_gdtr
bootstrap_gdtr:
	.word gdtselector(GDT_ITEMS)
	.long KA2PA(gdt)
 
grub_eax:
	.long 0
 
grub_ebx:
	.long 0
 

Rev 1289	Rev 1291
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	# All rights reserved.	4	# All rights reserved.
5	#	5	#
6	# Redistribution and use in source and binary forms, with or without	6	# Redistribution and use in source and binary forms, with or without
7	# modification, are permitted provided that the following conditions	7	# modification, are permitted provided that the following conditions
8	# are met:	8	# are met:
9	#	9	#
10	# - Redistributions of source code must retain the above copyright	10	# - Redistributions of source code must retain the above copyright
11	# notice, this list of conditions and the following disclaimer.	11	# notice, this list of conditions and the following disclaimer.
12	# - Redistributions in binary form must reproduce the above copyright	12	# - Redistributions in binary form must reproduce the above copyright
13	# notice, this list of conditions and the following disclaimer in the	13	# notice, this list of conditions and the following disclaimer in the
14	# documentation and/or other materials provided with the distribution.	14	# documentation and/or other materials provided with the distribution.
15	# - The name of the author may not be used to endorse or promote products	15	# - The name of the author may not be used to endorse or promote products
16	# derived from this software without specific prior written permission.	16	# derived from this software without specific prior written permission.
17	#	17	#
18	# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	18	# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19	# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	19	# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20	# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	20	# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21	# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	21	# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22	# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	22	# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23	# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	23	# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	24	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	25	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	26	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	27	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	#	28	#
29		29
30	#include <arch/boot/boot.h>	30	#include <arch/boot/boot.h>
31	#include <arch/boot/memmap.h>	31	#include <arch/boot/memmap.h>
32	#include <arch/mm/page.h>	32	#include <arch/mm/page.h>
33	#include <arch/mm/ptl.h>	33	#include <arch/mm/ptl.h>
34	#include <arch/pm.h>	34	#include <arch/pm.h>
35	#include <arch/cpu.h>	35	#include <arch/cpu.h>
36	#include <arch/cpuid.h>	36	#include <arch/cpuid.h>
37		37
38	#define START_STACK (BOOT_OFFSET - BOOT_STACK_SIZE)	38	#define START_STACK (BOOT_OFFSET - BOOT_STACK_SIZE)
39		39
40	.section K_TEXT_START, "ax"	40	.section K_TEXT_START, "ax"
41		41
42	.code32	42	.code32
43	.align 4	43	.align 4
44	.global multiboot_image_start	44	.global multiboot_image_start
45	multiboot_header:	45	multiboot_header:
46	.long MULTIBOOT_HEADER_MAGIC	46	.long MULTIBOOT_HEADER_MAGIC
47	.long MULTIBOOT_HEADER_FLAGS	47	.long MULTIBOOT_HEADER_FLAGS
48	.long -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS) # checksum	48	.long -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS) # checksum
49	.long multiboot_header	49	.long multiboot_header
50	.long unmapped_ktext_start	50	.long unmapped_ktext_start
51	.long 0	51	.long 0
52	.long 0	52	.long 0
53	.long multiboot_image_start	53	.long multiboot_image_start
54		54
55	multiboot_image_start:	55	multiboot_image_start:
56	movl $START_STACK, %esp # initialize stack pointer	56	movl $START_STACK, %esp # initialize stack pointer
57	lgdt bootstrap_gdtr # initialize Global Descriptor Table register	57	lgdt bootstrap_gdtr # initialize Global Descriptor Table register
58		58
59	movw $gdtselector(KDATA_DES), %cx	59	movw $gdtselector(KDATA_DES), %cx
60	movw %cx, %es	60	movw %cx, %es
61	movw %cx, %ds # kernel data + stack	61	movw %cx, %ds # kernel data + stack
62	movw %cx, %ss	62	movw %cx, %ss
63	# Simics seems to remove hidden part of GS on entering user mode	63	# Simics seems to remove hidden part of GS on entering user mode
64	# when _visible_ part of GS does not point to user-mode segment	64	# when _visible_ part of GS does not point to user-mode segment
65	movw $gdtselector(UDATA_DES), %cx	65	movw $gdtselector(UDATA_DES), %cx
66	movw %cx, %fs	66	movw %cx, %fs
67	movw %cx, %gs	67	movw %cx, %gs
68		68
69	jmpl $gdtselector(KTEXT32_DES), $multiboot_meeting_point	69	jmpl $gdtselector(KTEXT32_DES), $multiboot_meeting_point
70	multiboot_meeting_point:	70	multiboot_meeting_point:
71		71
72	movl %eax, grub_eax # save parameters from GRUB	72	movl %eax, grub_eax # save parameters from GRUB
73	movl %ebx, grub_ebx	73	movl %ebx, grub_ebx
74		74
75	#ifdef CONFIG_FB	75	#ifdef CONFIG_FB
76	mov $vesa_init,%esi;	76	mov $vesa_init,%esi;
77	mov $VESA_INIT_SEGMENT<<4,%edi;	77	mov $VESA_INIT_SEGMENT<<4,%edi;
78	mov $e_vesa_init-vesa_init,%ecx;	78	mov $e_vesa_init-vesa_init,%ecx;
79	cld;	79	cld;
80	rep movsb;	80	rep movsb;
81		81
82	mov $VESA_INIT_SEGMENT<<4,%edi;	82	mov $VESA_INIT_SEGMENT<<4,%edi;
83	call *%edi;	83	call *%edi;
84	mov %esi,KA2PA(vesa_ph_addr);	84	mov %esi,KA2PA(vesa_ph_addr);
85	mov %di,KA2PA(vesa_height);	85	mov %di,KA2PA(vesa_height);
86	shr $16,%edi;	86	shr $16,%edi;
87	mov %di,KA2PA(vesa_width);	87	mov %di,KA2PA(vesa_width);
88	mov %bx,KA2PA(vesa_scanline);	88	mov %bx,KA2PA(vesa_scanline);
89	shr $16,%ebx;	89	shr $16,%ebx;
90	mov %bx,KA2PA(vesa_bpp);	90	mov %bx,KA2PA(vesa_bpp);
91	#endif	91	#endif
92		92
93	# Protected 32-bit. We want to reuse the code-seg descriptor,	93	# Protected 32-bit. We want to reuse the code-seg descriptor,
94	# the Default operand size must not be 1 when entering long mode	94	# the Default operand size must not be 1 when entering long mode
95		95
96	movl $0x80000000, %eax	96	movl $0x80000000, %eax
97	cpuid	97	cpuid
98	cmp $0x80000000, %eax # any function > 80000000h?	98	cmp $0x80000000, %eax # any function > 80000000h?
99	jbe long_mode_unsupported	99	jbe long_mode_unsupported
100	movl $(AMD_CPUID_EXTENDED), %eax # Extended function code 80000001	100	movl $(AMD_CPUID_EXTENDED), %eax # Extended function code 80000001
101	cpuid	101	cpuid
102	bt $29, %edx # Test if long mode is supported.	102	bt $29, %edx # Test if long mode is supported.
103	jc long_mode_supported	103	jc long_mode_supported
104		104
105	long_mode_unsupported:	105	long_mode_unsupported:
106	cli	106	cli
107	hlt	107	hlt
108		108
109	long_mode_supported:	109	long_mode_supported:
110		110
111	# Enable 64-bit page transaltion entries - CR4.PAE = 1.	111	# Enable 64-bit page transaltion entries - CR4.PAE = 1.
112	# Paging is not enabled until after long mode is enabled	112	# Paging is not enabled until after long mode is enabled
113		113
114	movl %cr4, %eax	114	movl %cr4, %eax
115	btsl $5, %eax	115	btsl $5, %eax
116	movl %eax, %cr4	116	movl %eax, %cr4
117		117
118	# Set up paging tables	118	# Set up paging tables
119		119
120	leal ptl_0, %eax	120	leal ptl_0, %eax
121	movl %eax, %cr3	121	movl %eax, %cr3
122		122
123	# Enable long mode	123	# Enable long mode
124		124
125	movl $EFER_MSR_NUM, %ecx # EFER MSR number	125	movl $EFER_MSR_NUM, %ecx # EFER MSR number
126	rdmsr # Read EFER	126	rdmsr # Read EFER
127	btsl $AMD_LME_FLAG, %eax # Set LME=1	127	btsl $AMD_LME_FLAG, %eax # Set LME=1
128	wrmsr # Write EFER	128	wrmsr # Write EFER
129		129
130	# Enable paging to activate long mode (set CR0.PG=1)	130	# Enable paging to activate long mode (set CR0.PG=1)
131		131
132	movl %cr0, %eax	132	movl %cr0, %eax
133	btsl $31, %eax	133	btsl $31, %eax
134	movl %eax, %cr0	134	movl %eax, %cr0
135		135
136	# At this point we are in compatibility mode	136	# At this point we are in compatibility mode
137		137
138	jmpl $gdtselector(KTEXT_DES), $start64	138	jmpl $gdtselector(KTEXT_DES), $start64
139		139
140	.code64	140	.code64
141	start64:	141	start64:
142	movq $(PA2KA(START_STACK)), %rsp	142	movq $(PA2KA(START_STACK)), %rsp
143	movl grub_eax, %eax	143	movl grub_eax, %eax
144	movl grub_ebx, %ebx	144	movl grub_ebx, %ebx
145		145
146	cmpl $MULTIBOOT_LOADER_MAGIC, %eax # compare GRUB signature	146	cmpl $MULTIBOOT_LOADER_MAGIC, %eax # compare GRUB signature
147	je valid_boot	147	je valid_boot
148		148
149	xorl %ecx, %ecx # no memory size or map available	149	xorl %ecx, %ecx # no memory size or map available
150	movl %ecx, e801memorysize	150	movl %ecx, e801memorysize
151	movl %ecx, e820counter	151	movl %ecx, e820counter
152		152
153	jmp invalid_boot	153	jmp invalid_boot
154		154
155	valid_boot:	155	valid_boot:
156		156
157	movl (%ebx), %eax # ebx = physical address of struct multiboot_info	157	movl (%ebx), %eax # ebx = physical address of struct multiboot_info
158		158
159	bt $0, %eax # mbi->flags[0] (mem_lower, mem_upper valid)	159	bt $0, %eax # mbi->flags[0] (mem_lower, mem_upper valid)
160	jc mem_valid	160	jc mem_valid
161		161
162	xorl %ecx, %ecx	162	xorl %ecx, %ecx
163	jmp mem_invalid	163	jmp mem_invalid
164		164
165	mem_valid:	165	mem_valid:
166	movl 4(%ebx), %ecx # mbi->mem_lower	166	movl 4(%ebx), %ecx # mbi->mem_lower
167	addl 8(%ebx), %ecx # mbi->mem_upper	167	addl 8(%ebx), %ecx # mbi->mem_upper
168		168
169	mem_invalid:	169	mem_invalid:
170	movl %ecx, e801memorysize	170	movl %ecx, e801memorysize
171		171
172	bt $3, %eax # mbi->flags[3] (mods_count, mods_addr valid)	172	bt $3, %eax # mbi->flags[3] (mods_count, mods_addr valid)
173	jc mods_valid	173	jc mods_valid
174		174
175	xorq %rcx, %rcx	175	xorq %rcx, %rcx
176	movq %rcx, init	176	movq %rcx, init
177	jmp mods_end	177	jmp mods_end
178		178
179	mods_valid:	179	mods_valid:
180		180
181	xorq %rcx, %rcx	181	xorq %rcx, %rcx
182	movl 20(%ebx), %ecx # mbi->mods_count	182	movl 20(%ebx), %ecx # mbi->mods_count
183	movq %rcx, init	183	movq %rcx, init
184		184
185	cmpl $0, %ecx	185	cmpl $0, %ecx
186	je mods_end	186	je mods_end
187		187
188	movl 24(%ebx), %esi # mbi->mods_addr	188	movl 24(%ebx), %esi # mbi->mods_addr
189	movq $init, %rdi	189	movq $init, %rdi
190		190
191	mods_loop:	191	mods_loop:
192		192
193	xorq %rdx, %rdx	193	xorq %rdx, %rdx
194	movl 0(%esi), %edx # mods->mod_start	194	movl 0(%esi), %edx # mods->mod_start
195	movq $0xffff800000000000, %r10	195	movq $0xffff800000000000, %r10
196	addq %r10, %rdx	196	addq %r10, %rdx
197	movq %rdx, 8(%rdi)	197	movq %rdx, 8(%rdi)
198		198
199	xorq %rdx, %rdx	199	xorq %rdx, %rdx
200	movl 4(%esi), %edx	200	movl 4(%esi), %edx
201	subl 0(%esi), %edx # mods->mod_end - mods->mod_start	201	subl 0(%esi), %edx # mods->mod_end - mods->mod_start
202	movq %rdx, 16(%rdi)	202	movq %rdx, 16(%rdi)
203		203
204	addl $16, %esi	204	addl $16, %esi
205	addq $16, %rdi	205	addq $16, %rdi
206		206
207	loop mods_loop	207	loop mods_loop
208		208
209	mods_end:	209	mods_end:
210		210
211	bt $6, %eax # mbi->flags[6] (mmap_length, mmap_addr valid)	211	bt $6, %eax # mbi->flags[6] (mmap_length, mmap_addr valid)
212	jc mmap_valid	212	jc mmap_valid
213		213
214	xorl %edx, %edx	214	xorl %edx, %edx
215	jmp mmap_invalid	215	jmp mmap_invalid
216		216
217	mmap_valid:	217	mmap_valid:
218	movl 44(%ebx), %ecx # mbi->mmap_length	218	movl 44(%ebx), %ecx # mbi->mmap_length
219	movl 48(%ebx), %esi # mbi->mmap_addr	219	movl 48(%ebx), %esi # mbi->mmap_addr
220	movq $e820table, %rdi	220	movq $e820table, %rdi
221	xorl %edx, %edx	221	xorl %edx, %edx
222		222
223	mmap_loop:	223	mmap_loop:
224	cmpl $0, %ecx	224	cmpl $0, %ecx
225	jle mmap_end	225	jle mmap_end
226		226
227	movl 4(%esi), %eax # mmap->base_addr_low	227	movl 4(%esi), %eax # mmap->base_addr_low
228	movl %eax, (%rdi)	228	movl %eax, (%rdi)
229		229
230	movl 8(%esi), %eax # mmap->base_addr_high	230	movl 8(%esi), %eax # mmap->base_addr_high
231	movl %eax, 4(%rdi)	231	movl %eax, 4(%rdi)
232		232
233	movl 12(%esi), %eax # mmap->length_low	233	movl 12(%esi), %eax # mmap->length_low
234	movl %eax, 8(%rdi)	234	movl %eax, 8(%rdi)
235		235
236	movl 16(%esi), %eax # mmap->length_high	236	movl 16(%esi), %eax # mmap->length_high
237	movl %eax, 12(%rdi)	237	movl %eax, 12(%rdi)
238		238
239	movl 20(%esi), %eax # mmap->type	239	movl 20(%esi), %eax # mmap->type
240	movl %eax, 16(%rdi)	240	movl %eax, 16(%rdi)
241		241
242	movl (%esi), %eax # mmap->size	242	movl (%esi), %eax # mmap->size
243	addl $0x4, %eax	243	addl $0x4, %eax
244	addl %eax, %esi	244	addl %eax, %esi
245	subl %eax, %ecx	245	subl %eax, %ecx
246	addq $MEMMAP_E820_RECORD_SIZE, %rdi	246	addq $MEMMAP_E820_RECORD_SIZE, %rdi
247	incl %edx	247	incl %edx
248	jmp mmap_loop	248	jmp mmap_loop
249		249
250	mmap_end:	250	mmap_end:
251		251
252	mmap_invalid:	252	mmap_invalid:
253	movl %edx, e820counter	253	movl %edx, e820counter
254		254
255	invalid_boot:	255	invalid_boot:
256		256
257	#ifdef CONFIG_SMP	257	#ifdef CONFIG_SMP
258		258
259	# copy AP bootstrap routines below 1 MB	259	# copy AP bootstrap routines below 1 MB
260		260
261	movq $BOOT_OFFSET, %rsi	261	movq $BOOT_OFFSET, %rsi
262	movq $AP_BOOT_OFFSET, %rdi	262	movq $AP_BOOT_OFFSET, %rdi
263	movq $_hardcoded_unmapped_size, %rcx	263	movq $_hardcoded_unmapped_size, %rcx
264	cld	264	cld
265	rep movsb	265	rep movsb
266		266
267	#endif	267	#endif
268		268
269	call main_bsp # never returns	269	call main_bsp # never returns
270		270
271	cli	271	cli
272	hlt	272	hlt
273		273
274	#ifdef CONFIG_FB	274	#ifdef CONFIG_FB
275	.code32	275	.code32
276	vesa_init:	276	vesa_init:
277	jmp $gdtselector(VESA_INIT_DES),$vesa_init_real-vesa_init;	277	jmp $gdtselector(VESA_INIT_DES),$vesa_init_real-vesa_init;
278	.code16	278	.code16
279	vesa_init_real:	279	vesa_init_real:
280		280
281	mov %cr0,%eax;	281	mov %cr0,%eax;
282	and $~1,%eax;	282	and $~1,%eax;
283	mov %eax,%cr0;	283	mov %eax,%cr0;
284		284
285		285
286	jmp $VESA_INIT_SEGMENT,$vesa_init_real2-vesa_init;	286	jmp $VESA_INIT_SEGMENT,$vesa_init_real2-vesa_init;
287		287
288	vesa_init_real2:	288	vesa_init_real2:
289		289
290		290
291	mov %esp,%ebp;	291	mov %esp,%ebp;
292	mov %ss,%cx;	292	mov %ss,%cx;
293	mov $VESA_INIT_SEGMENT,%bx;	293	mov $VESA_INIT_SEGMENT,%bx;
294	mov %bx,%ss;	294	mov %bx,%ss;
295	mov $0x0000fffc,%esp;	295	mov $0x0000fffc,%esp;
296	push %ds;	296	push %ds;
297	push %es;	297	push %es;
298	push %fs;	298	push %fs;
299	push %gs;	299	push %gs;
300	push %ebp;	300	push %ebp;
301	push %cx;	301	push %cx;
302		302
303	mov %bx,%ds;	303	mov %bx,%ds;
304	mov %bx,%es;	304	mov %bx,%es;
305	mov %bx,%fs;	305	mov %bx,%fs;
306	mov %bx,%gs;	306	mov %bx,%gs;
307		307
308		308
309	mov $vesa_idt-vesa_init,%ebx;	309	mov $vesa_idt-vesa_init,%ebx;
310	lidtl (%ebx);	310	lidtl (%ebx);
311		311
312	#define VESA_INFO_SIZE 1024	312	#define VESA_INFO_SIZE 1024
313		313
314	#define VESA_MODE_LIST_PTR_OFFSET 14	314	#define VESA_MODE_LIST_PTR_OFFSET 14
315	#define VESA_MODE_WIDTH_OFFSET 18	315	#define VESA_MODE_WIDTH_OFFSET 18
316	#define VESA_MODE_HEIGHT_OFFSET 20	316	#define VESA_MODE_HEIGHT_OFFSET 20
317	#define VESA_MODE_BPP_OFFSET 25	317	#define VESA_MODE_BPP_OFFSET 25
318	#define VESA_MODE_SCANLINE_OFFSET 16	318	#define VESA_MODE_SCANLINE_OFFSET 16
319	#define VESA_MODE_PHADDR_OFFSET 40	319	#define VESA_MODE_PHADDR_OFFSET 40
320		320
321	#define VESA_END_OF_MODES 0xffff	321	#define VESA_END_OF_MODES 0xffff
322		322
323	#define VESA_OK 0x4f	323	#define VESA_OK 0x4f
324		324
325	#define VESA_GET_INFO 0x4f00	325	#define VESA_GET_INFO 0x4f00
326	#define VESA_GET_MODE_INFO 0x4f01	326	#define VESA_GET_MODE_INFO 0x4f01
327	#define VESA_SET_MODE 0x4f02	327	#define VESA_SET_MODE 0x4f02
328		328
329	#define CONFIG_VESA_BPP_a 255	329	#define CONFIG_VESA_BPP_a 255
330		330
331	#if CONFIG_VESA_BPP==24	331	#if CONFIG_VESA_BPP==24
332	#undef CONFIG_VESA_BPP_a	332	#undef CONFIG_VESA_BPP_a
333	#define CONFIG_VESA_BPP_a 32	333	#define CONFIG_VESA_BPP_a 32
334	#endif	334	#endif
335		335
336		336
337	mov $VESA_GET_INFO,%ax;	337	mov $VESA_GET_INFO,%ax;
338	mov $e_vesa_init-vesa_init,%di	338	mov $e_vesa_init-vesa_init,%di
339	push %di;	339	push %di;
340	int $0x10;	340	int $0x10;
341	pop %di;	341	pop %di;
342	cmp $VESA_OK,%al;	342	cmp $VESA_OK,%al;
343	jnz 0f;	343	jnz 0f;
344	mov 2+VESA_MODE_LIST_PTR_OFFSET(%di),%si;	344	mov 2+VESA_MODE_LIST_PTR_OFFSET(%di),%si;
345	mov %si,%gs;	345	mov %si,%gs;
346	mov VESA_MODE_LIST_PTR_OFFSET(%di),%si;	346	mov VESA_MODE_LIST_PTR_OFFSET(%di),%si;
347		347
348	add $VESA_INFO_SIZE,%di;	348	add $VESA_INFO_SIZE,%di;
349		349
350	1:# Try next mode	350	1:# Try next mode
351	mov %gs:(%si),%cx;	351	mov %gs:(%si),%cx;
352	cmp $VESA_END_OF_MODES,%cx;	352	cmp $VESA_END_OF_MODES,%cx;
353	jz 0f;	353	jz 0f;
354	inc %si;	354	inc %si;
355	inc %si;	355	inc %si;
356	push %cx;	356	push %cx;
357	push %di;	357	push %di;
358	push %si;	358	push %si;
359	mov $VESA_GET_MODE_INFO,%ax;	359	mov $VESA_GET_MODE_INFO,%ax;
360	int $0x10;	360	int $0x10;
361	pop %si;	361	pop %si;
362	pop %di;	362	pop %di;
363	pop %cx;	363	pop %cx;
364	cmp $VESA_OK,%al;	364	cmp $VESA_OK,%al;
365	jnz 0f;	365	jnz 0f;
366		366
367		367
368	mov $CONFIG_VESA_WIDTH,%ax;	368	mov $CONFIG_VESA_WIDTH,%ax;
369	cmp VESA_MODE_WIDTH_OFFSET(%di),%ax;	369	cmp VESA_MODE_WIDTH_OFFSET(%di),%ax;
370	jnz 1b;	370	jnz 1b;
371	mov $CONFIG_VESA_HEIGHT,%ax;	371	mov $CONFIG_VESA_HEIGHT,%ax;
372	cmp VESA_MODE_HEIGHT_OFFSET(%di),%ax;	372	cmp VESA_MODE_HEIGHT_OFFSET(%di),%ax;
373	jnz 1b;	373	jnz 1b;
374	mov $CONFIG_VESA_BPP,%al;	374	mov $CONFIG_VESA_BPP,%al;
375	cmp VESA_MODE_BPP_OFFSET(%di),%al;	375	cmp VESA_MODE_BPP_OFFSET(%di),%al;
376	jz 2f;	376	jz 2f;
377	mov $CONFIG_VESA_BPP_a,%al;	377	mov $CONFIG_VESA_BPP_a,%al;
378	cmp VESA_MODE_BPP_OFFSET(%di),%al;	378	cmp VESA_MODE_BPP_OFFSET(%di),%al;
379	jnz 1b;	379	jnz 1b;
380		380
381	2:	381	2:
382		382
383	mov %cx,%bx;	383	mov %cx,%bx;
384	or $0xC000,%bx;	384	or $0xC000,%bx;
385	push %di;	385	push %di;
386	mov $VESA_SET_MODE,%ax;	386	mov $VESA_SET_MODE,%ax;
387	int $0x10;	387	int $0x10;
388	pop %di;	388	pop %di;
389	cmp $VESA_OK,%al;	389	cmp $VESA_OK,%al;
390	jnz 0f;	390	jnz 0f;
391		391
392	mov VESA_MODE_PHADDR_OFFSET(%di),%esi;	392	mov VESA_MODE_PHADDR_OFFSET(%di),%esi;
393	mov VESA_MODE_WIDTH_OFFSET(%di),%ax;	393	mov VESA_MODE_WIDTH_OFFSET(%di),%ax;
394	shl $16,%eax;	394	shl $16,%eax;
395	mov VESA_MODE_HEIGHT_OFFSET(%di),%ax;	395	mov VESA_MODE_HEIGHT_OFFSET(%di),%ax;
396	mov VESA_MODE_BPP_OFFSET(%di),%bl;	396	mov VESA_MODE_BPP_OFFSET(%di),%bl;
397	xor %bh,%bh;	397	xor %bh,%bh;
398	shl $16,%ebx;	398	shl $16,%ebx;
399	mov VESA_MODE_SCANLINE_OFFSET(%di),%bx;	399	mov VESA_MODE_SCANLINE_OFFSET(%di),%bx;
400	mov %eax,%edi;	400	mov %eax,%edi;
401		401
402		402
403		403
404	8:	404	8:
405		405
406	mov %cr0,%eax;	406	mov %cr0,%eax;
407	or $1,%eax;	407	or $1,%eax;
408	mov %eax,%cr0;	408	mov %eax,%cr0;
409		409
410	jmp 9f;	410	jmp 9f;
411	9:	411	9:
412		412
413	pop %cx;	413	pop %cx;
414	pop %ebp;	414	pop %ebp;
415	pop %gs;	415	pop %gs;
416	pop %fs;	416	pop %fs;
417	pop %es;	417	pop %es;
418	pop %ds;	418	pop %ds;
419	mov %cx,%ss;	419	mov %cx,%ss;
420	mov %ebp,%esp;	420	mov %ebp,%esp;
421		421
422	ljmpl $gdtselector(KTEXT32_DES),$(vesa_init_protect-vesa_init+VESA_INIT_SEGMENT<<4);	422	ljmpl $gdtselector(KTEXT32_DES),$(vesa_init_protect-vesa_init+VESA_INIT_SEGMENT<<4);
423		423
424	vesa_init_protect:	-
425	.code32	-
426	ret;	-
427		-
428	0: #Error no Prefered mode found	-
429		424
-		425	0:#Error no Prefered mode found
430	mov $0x111,%cx;	426	mov $0x111,%cx;
431	push %di;	427	push %di;
432	push %cx;	428	push %cx;
433	mov $VESA_GET_MODE_INFO,%ax;	429	mov $VESA_GET_MODE_INFO,%ax;
434	int $0x10;	430	int $0x10;
435	pop %cx;	431	pop %cx;
436	pop %di;	432	pop %di;
437	cmp $VESA_OK,%al;	433	cmp $VESA_OK,%al;
438	jnz 1f;	434	jnz 1f;
439	jmp 2b;	435	jz 2b; /* Force relative jump */
440		436
-		437
441	1:mov $0x0003,%ax;	438	1:mov $0x0003,%ax;
442	int $0x10;	439	int $0x10;
443	mov $0xffffffff,%edi; /* EGA text mode used, because of problems with VESA */	440	mov $0xffffffff,%edi; /* EGA text mode used, because of problems with VESA */
-		441	xor %ax,%ax
-		442	jz 8b; /* Force relative jump */
-		443
-		444
-		445	vesa_init_protect:
-		446	.code32
444	jmp 8;	447	ret;
445		448
446		449
447	vesa_idt:	450	vesa_idt:
448	.word 0x03ff	451	.word 0x03ff
449	.long 0	452	.long 0
450	.align 4	453	.align 4
451	e_vesa_init:	454	e_vesa_init:
452	#endif	455	#endif
453		456
454		457
455		458
456	.section K_DATA_START, "aw", @progbits	459	.section K_DATA_START, "aw", @progbits
457	.align 4096	460	.align 4096
458		461
459	# Identical mapping of first 64MB and the same of -2GB -> 0	462	# Identical mapping of first 64MB and the same of -2GB -> 0
460	.global ptl_2	463	.global ptl_2
461	ptl_2:	464	ptl_2:
462	.quad 0x0 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	465	.quad 0x0 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
463	.quad 0x200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	466	.quad 0x200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
464	.quad 0x400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	467	.quad 0x400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
465	.quad 0x600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	468	.quad 0x600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
466	.quad 0x800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	469	.quad 0x800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
467	.quad 0xa00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	470	.quad 0xa00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
468	.quad 0xc00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	471	.quad 0xc00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
469	.quad 0xe00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	472	.quad 0xe00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
470	.quad 0x1000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	473	.quad 0x1000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
471	.quad 0x1200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	474	.quad 0x1200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
472	.quad 0x1400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	475	.quad 0x1400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
473	.quad 0x1600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	476	.quad 0x1600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
474	.quad 0x1800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	477	.quad 0x1800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
475	.quad 0x1a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	478	.quad 0x1a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
476	.quad 0x1c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	479	.quad 0x1c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
477	.quad 0x1e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	480	.quad 0x1e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
478	.quad 0x2000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	481	.quad 0x2000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
479	.quad 0x2200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	482	.quad 0x2200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
480	.quad 0x2400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	483	.quad 0x2400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
481	.quad 0x2600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	484	.quad 0x2600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
482	.quad 0x2800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	485	.quad 0x2800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
483	.quad 0x2a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	486	.quad 0x2a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
484	.quad 0x2c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	487	.quad 0x2c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
485	.quad 0x2e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	488	.quad 0x2e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
486	.quad 0x3000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	489	.quad 0x3000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
487	.quad 0x3200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	490	.quad 0x3200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
488	.quad 0x3400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	491	.quad 0x3400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
489	.quad 0x3600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	492	.quad 0x3600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
490	.quad 0x3800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	493	.quad 0x3800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
491	.quad 0x3a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	494	.quad 0x3a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
492	.quad 0x3c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	495	.quad 0x3c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/amd64/src/boot/boot.S @ 1289 – Rev 1289 → 1291