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


#
# Copyright (C) 2005 Ondrej Palkovsky
# 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/mm/page.h>	
#include <arch/mm/ptl.h>
#include <arch/pm.h>
#include <arch/cpu.h>
#include <arch/cpuid.h>
#include <arch/boot/boot.h>
 
#define START_STACK_64  0xffffffff80007c00
					
#
# This is where we require any SPARTAN-kernel-compatible boot loader
# to pass control in real mode.
#
# Protected mode tables are statically initialised during compile
# time. So we can just load the respective table registers and
# switch to protected mode.
#
 
#define START_STACK (BOOTSTRAP_OFFSET-0x400)
	
.section K_TEXT_START, "ax"
.code16
.global kernel_image_start
kernel_image_start:
	cli
	xorw %ax,%ax
	movw %ax,%ds
	movw %ax,%es
	movw %ax,%ss            # initialize stack segment register
	movl $(START_STACK), %esp	# initialize stack pointer
	
	call memmap_arch_init
	
	movl $0x80000000, %eax  
	cpuid
	cmp $0x80000000, %eax 	# any function > 80000000h?
	jbe no_long_mode
	movl $(AMD_CPUID_EXTENDED), %eax # Extended function code 80000001
	cpuid
	bt $29, %edx 		# Test if long mode is supported.
	jnc no_long_mode
 
	# Load gdtr, idtr
	lgdt real_bootstrap_gdtr_boot
	
	movl %cr0,%eax
	orl $0x1,%eax
	movl %eax,%cr0			# switch to protected mode
 
	jmpl $gdtselector(KTEXT32_DES), $now_in_prot
 
no_long_mode:
1:
	jmp 1b
 
# Protected 32-bit. We want to reuse the code-seg descriptor,
# the Default operand size must not be 1 when entering long mode
.code32
now_in_prot:  
	# Set up stack & data descriptors
	movw $gdtselector(KDATA_DES), %ax
	movw %ax, %ds
	movw %ax, %ss
 
	movb $0xd1, %al		# enable A20 using the keyboard controller
	outb %al, $0x64
	movb $0xdf, %al
	outb %al, $0x60
 
	
	# 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
 
	# Copy kernel to higher physical memory
	movq $BOOTSTRAP_OFFSET, %rsi
	movq $BOOTSTRAP_OFFSET + BOOT_OFFSET, %rdi
	movq $_hardcoded_kernel_size, %rcx
	cld
	rep movsb
	
	call main_bsp   # never returns
1:
	jmp 1b
				
.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 510,8,0
	.quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT)
 
.global real_bootstrap_gdtr_boot
real_bootstrap_gdtr_boot:
	.word gdtselector(GDT_ITEMS)
	.long KA2PA(gdt)-BOOT_OFFSET
 

Rev 417	Rev 472
1	#	1	#
2	# Copyright (C) 2005 Ondrej Palkovsky	2	# Copyright (C) 2005 Ondrej Palkovsky
3	# All rights reserved.	3	# All rights reserved.
4	#	4	#
5	# Redistribution and use in source and binary forms, with or without	5	# Redistribution and use in source and binary forms, with or without
6	# modification, are permitted provided that the following conditions	6	# modification, are permitted provided that the following conditions
7	# are met:	7	# are met:
8	#	8	#
9	# - Redistributions of source code must retain the above copyright	9	# - Redistributions of source code must retain the above copyright
10	# notice, this list of conditions and the following disclaimer.	10	# notice, this list of conditions and the following disclaimer.
11	# - Redistributions in binary form must reproduce the above copyright	11	# - Redistributions in binary form must reproduce the above copyright
12	# notice, this list of conditions and the following disclaimer in the	12	# notice, this list of conditions and the following disclaimer in the
13	# documentation and/or other materials provided with the distribution.	13	# documentation and/or other materials provided with the distribution.
14	# - The name of the author may not be used to endorse or promote products	14	# - The name of the author may not be used to endorse or promote products
15	# derived from this software without specific prior written permission.	15	# derived from this software without specific prior written permission.
16	#	16	#
17	# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	#	27	#
28		28
29	#define __ASM__	-
30		-
31	#include <arch/mm/page.h>	29	#include <arch/mm/page.h>
32	#include <arch/mm/ptl.h>	30	#include <arch/mm/ptl.h>
33	#include <arch/pm.h>	31	#include <arch/pm.h>
34	#include <arch/cpu.h>	32	#include <arch/cpu.h>
35	#include <arch/cpuid.h>	33	#include <arch/cpuid.h>
36	#include <arch/boot/boot.h>	34	#include <arch/boot/boot.h>
37		35
38	#define START_STACK_64 0xffffffff80007c00	36	#define START_STACK_64 0xffffffff80007c00
39		37
40	#	38	#
41	# This is where we require any SPARTAN-kernel-compatible boot loader	39	# This is where we require any SPARTAN-kernel-compatible boot loader
42	# to pass control in real mode.	40	# to pass control in real mode.
43	#	41	#
44	# Protected mode tables are statically initialised during compile	42	# Protected mode tables are statically initialised during compile
45	# time. So we can just load the respective table registers and	43	# time. So we can just load the respective table registers and
46	# switch to protected mode.	44	# switch to protected mode.
47	#	45	#
48		46
49	#define START_STACK (BOOTSTRAP_OFFSET-0x400)	47	#define START_STACK (BOOTSTRAP_OFFSET-0x400)
50		48
51	.section K_TEXT_START, "ax"	49	.section K_TEXT_START, "ax"
52	.code16	50	.code16
53	.global kernel_image_start	51	.global kernel_image_start
54	kernel_image_start:	52	kernel_image_start:
55	cli	53	cli
56	xorw %ax,%ax	54	xorw %ax,%ax
57	movw %ax,%ds	55	movw %ax,%ds
58	movw %ax,%es	56	movw %ax,%es
59	movw %ax,%ss # initialize stack segment register	57	movw %ax,%ss # initialize stack segment register
60	movl $(START_STACK), %esp # initialize stack pointer	58	movl $(START_STACK), %esp # initialize stack pointer
61		59
62	call memmap_arch_init	60	call memmap_arch_init
63		61
64	movl $0x80000000, %eax	62	movl $0x80000000, %eax
65	cpuid	63	cpuid
66	cmp $0x80000000, %eax # any function > 80000000h?	64	cmp $0x80000000, %eax # any function > 80000000h?
67	jbe no_long_mode	65	jbe no_long_mode
68	movl $(AMD_CPUID_EXTENDED), %eax # Extended function code 80000001	66	movl $(AMD_CPUID_EXTENDED), %eax # Extended function code 80000001
69	cpuid	67	cpuid
70	bt $29, %edx # Test if long mode is supported.	68	bt $29, %edx # Test if long mode is supported.
71	jnc no_long_mode	69	jnc no_long_mode
72		70
73	# Load gdtr, idtr	71	# Load gdtr, idtr
74	lgdt real_bootstrap_gdtr_boot	72	lgdt real_bootstrap_gdtr_boot
75		73
76	movl %cr0,%eax	74	movl %cr0,%eax
77	orl $0x1,%eax	75	orl $0x1,%eax
78	movl %eax,%cr0 # switch to protected mode	76	movl %eax,%cr0 # switch to protected mode
79		77
80	jmpl $gdtselector(KTEXT32_DES), $now_in_prot	78	jmpl $gdtselector(KTEXT32_DES), $now_in_prot
81		79
82	no_long_mode:	80	no_long_mode:
83	1:	81	1:
84	jmp 1b	82	jmp 1b
85		83
86	# Protected 32-bit. We want to reuse the code-seg descriptor,	84	# Protected 32-bit. We want to reuse the code-seg descriptor,
87	# the Default operand size must not be 1 when entering long mode	85	# the Default operand size must not be 1 when entering long mode
88	.code32	86	.code32
89	now_in_prot:	87	now_in_prot:
90	# Set up stack & data descriptors	88	# Set up stack & data descriptors
91	movw $gdtselector(KDATA_DES), %ax	89	movw $gdtselector(KDATA_DES), %ax
92	movw %ax, %ds	90	movw %ax, %ds
93	movw %ax, %ss	91	movw %ax, %ss
94		92
95	movb $0xd1, %al # enable A20 using the keyboard controller	93	movb $0xd1, %al # enable A20 using the keyboard controller
96	outb %al, $0x64	94	outb %al, $0x64
97	movb $0xdf, %al	95	movb $0xdf, %al
98	outb %al, $0x60	96	outb %al, $0x60
99		97
100		98
101	# Enable 64-bit page transaltion entries - CR4.PAE = 1.	99	# Enable 64-bit page transaltion entries - CR4.PAE = 1.
102	# Paging is not enabled until after long mode is enabled	100	# Paging is not enabled until after long mode is enabled
103	movl %cr4, %eax	101	movl %cr4, %eax
104	btsl $5, %eax	102	btsl $5, %eax
105	movl %eax, %cr4	103	movl %eax, %cr4
106		104
107	# Set up paging tables	105	# Set up paging tables
108	leal ptl_0, %eax	106	leal ptl_0, %eax
109	movl %eax, %cr3	107	movl %eax, %cr3
110		108
111	# Enable long mode	109	# Enable long mode
112	movl $EFER_MSR_NUM, %ecx # EFER MSR number	110	movl $EFER_MSR_NUM, %ecx # EFER MSR number
113	rdmsr # Read EFER	111	rdmsr # Read EFER
114	btsl $AMD_LME_FLAG, %eax # Set LME=1	112	btsl $AMD_LME_FLAG, %eax # Set LME=1
115	wrmsr # Write EFER	113	wrmsr # Write EFER
116		114
117	# Enable paging to activate long mode (set CR0.PG=1)	115	# Enable paging to activate long mode (set CR0.PG=1)
118	movl %cr0, %eax	116	movl %cr0, %eax
119	btsl $31, %eax	117	btsl $31, %eax
120	movl %eax, %cr0	118	movl %eax, %cr0
121		119
122	# At this point we are in compatibility mode	120	# At this point we are in compatibility mode
123	jmpl $gdtselector(KTEXT_DES), $start64	121	jmpl $gdtselector(KTEXT_DES), $start64
124		122
125	.code64	123	.code64
126	start64:	124	start64:
127	movq $(PA2KA(START_STACK)), %rsp	125	movq $(PA2KA(START_STACK)), %rsp
128		126
129	# Copy kernel to higher physical memory	127	# Copy kernel to higher physical memory
130	movq $BOOTSTRAP_OFFSET, %rsi	128	movq $BOOTSTRAP_OFFSET, %rsi
131	movq $BOOTSTRAP_OFFSET + BOOT_OFFSET, %rdi	129	movq $BOOTSTRAP_OFFSET + BOOT_OFFSET, %rdi
132	movq $_hardcoded_kernel_size, %rcx	130	movq $_hardcoded_kernel_size, %rcx
133	cld	131	cld
134	rep movsb	132	rep movsb
135		133
136	call main_bsp # never returns	134	call main_bsp # never returns
137	1:	135	1:
138	jmp 1b	136	jmp 1b
139		137
140	.section K_DATA_START, "aw", @progbits	138	.section K_DATA_START, "aw", @progbits
141	.align 4096	139	.align 4096
142		140
143	# Identical mapping of first 64MB and the same of -2GB -> 0	141	# Identical mapping of first 64MB and the same of -2GB -> 0
144	.global ptl_2	142	.global ptl_2
145	ptl_2:	143	ptl_2:
146	.quad 0x0 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	144	.quad 0x0 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
147	.quad 0x200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	145	.quad 0x200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
148	.quad 0x400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	146	.quad 0x400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
149	.quad 0x600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	147	.quad 0x600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
150	.quad 0x800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	148	.quad 0x800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
151	.quad 0xa00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	149	.quad 0xa00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
152	.quad 0xc00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	150	.quad 0xc00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
153	.quad 0xe00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	151	.quad 0xe00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
154	.quad 0x1000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	152	.quad 0x1000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
155	.quad 0x1200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	153	.quad 0x1200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
156	.quad 0x1400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	154	.quad 0x1400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
157	.quad 0x1600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	155	.quad 0x1600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
158	.quad 0x1800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	156	.quad 0x1800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
159	.quad 0x1a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	157	.quad 0x1a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
160	.quad 0x1c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	158	.quad 0x1c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
161	.quad 0x1e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	159	.quad 0x1e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
162	.quad 0x2000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	160	.quad 0x2000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
163	.quad 0x2200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	161	.quad 0x2200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
164	.quad 0x2400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	162	.quad 0x2400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
165	.quad 0x2600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	163	.quad 0x2600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
166	.quad 0x2800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	164	.quad 0x2800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
167	.quad 0x2a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	165	.quad 0x2a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
168	.quad 0x2c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	166	.quad 0x2c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
169	.quad 0x2e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	167	.quad 0x2e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
170	.quad 0x3000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	168	.quad 0x3000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
171	.quad 0x3200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	169	.quad 0x3200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
172	.quad 0x3400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	170	.quad 0x3400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
173	.quad 0x3600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	171	.quad 0x3600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
174	.quad 0x3800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	172	.quad 0x3800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
175	.quad 0x3a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	173	.quad 0x3a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
176	.quad 0x3c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	174	.quad 0x3c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
177	.quad 0x3e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	175	.quad 0x3e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
178		176
179	.align 4096	177	.align 4096
180	.global ptl_1	178	.global ptl_1
181	ptl_1:	179	ptl_1:
182	.quad ptl_2 + (PTL_WRITABLE \| PTL_PRESENT)	180	.quad ptl_2 + (PTL_WRITABLE \| PTL_PRESENT)
183	.fill 509,8,0	181	.fill 509,8,0
184	.quad ptl_2 + (PTL_WRITABLE \| PTL_PRESENT)	182	.quad ptl_2 + (PTL_WRITABLE \| PTL_PRESENT)
185	.fill 1,8,0	183	.fill 1,8,0
186		184
187	.align 4096	185	.align 4096
188	.global ptl_0	186	.global ptl_0
189	ptl_0:	187	ptl_0:
190	.quad ptl_1 + (PTL_WRITABLE \| PTL_PRESENT)	188	.quad ptl_1 + (PTL_WRITABLE \| PTL_PRESENT)
191	.fill 510,8,0	189	.fill 510,8,0
192	.quad ptl_1 + (PTL_WRITABLE \| PTL_PRESENT)	190	.quad ptl_1 + (PTL_WRITABLE \| PTL_PRESENT)
193		191
194	.global real_bootstrap_gdtr_boot	192	.global real_bootstrap_gdtr_boot
195	real_bootstrap_gdtr_boot:	193	real_bootstrap_gdtr_boot:
196	.word gdtselector(GDT_ITEMS)	194	.word gdtselector(GDT_ITEMS)
197	.long KA2PA(gdt)-BOOT_OFFSET	195	.long KA2PA(gdt)-BOOT_OFFSET
198		196

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/amd64/src/boot/boot.S @ 2723 – Rev 417 → 472