WebSVN – HelenOS – Diff – /SPARTAN/trunk/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.
#
 
#define __ASM__
 
#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 406	Rev 417
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__	29	#define __ASM__
30		30
31	#include <arch/mm/page.h>	31	#include <arch/mm/page.h>
32	#include <arch/mm/ptl.h>	32	#include <arch/mm/ptl.h>
33	#include <arch/pm.h>	33	#include <arch/pm.h>
34	#include <arch/cpu.h>	34	#include <arch/cpu.h>
35	#include <arch/cpuid.h>	35	#include <arch/cpuid.h>
36	#include <arch/boot/boot.h>	36	#include <arch/boot/boot.h>
37		37
38	#define START_STACK_64 0xffffffff80007c00	38	#define START_STACK_64 0xffffffff80007c00
39		39
40	#	40	#
41	# This is where we require any SPARTAN-kernel-compatible boot loader	41	# This is where we require any SPARTAN-kernel-compatible boot loader
42	# to pass control in real mode.	42	# to pass control in real mode.
43	#	43	#
44	# Protected mode tables are statically initialised during compile	44	# Protected mode tables are statically initialised during compile
45	# time. So we can just load the respective table registers and	45	# time. So we can just load the respective table registers and
46	# switch to protected mode.	46	# switch to protected mode.
47	#	47	#
48		48
49	#define START_STACK (BOOTSTRAP_OFFSET-0x400)	49	#define START_STACK (BOOTSTRAP_OFFSET-0x400)
50		50
51	.section K_TEXT_START, "ax"	51	.section K_TEXT_START, "ax"
52	.code16	52	.code16
53	.global kernel_image_start	53	.global kernel_image_start
54	kernel_image_start:	54	kernel_image_start:
55	cli	55	cli
56	xorw %ax,%ax	56	xorw %ax,%ax
57	movw %ax,%ds	57	movw %ax,%ds
58	movw %ax,%es	58	movw %ax,%es
59	movw %ax,%ss # initialize stack segment register	59	movw %ax,%ss # initialize stack segment register
60	movl $(START_STACK), %esp # initialize stack pointer	60	movl $(START_STACK), %esp # initialize stack pointer
61		61
62	call memmap_arch_init	62	call memmap_arch_init
63		63
64	movl $0x80000000, %eax	64	movl $0x80000000, %eax
65	cpuid	65	cpuid
66	cmp $0x80000000, %eax # any function > 80000000h?	66	cmp $0x80000000, %eax # any function > 80000000h?
67	jbe no_long_mode	67	jbe no_long_mode
68	movl $(AMD_CPUID_EXTENDED), %eax # Extended function code 80000001	68	movl $(AMD_CPUID_EXTENDED), %eax # Extended function code 80000001
69	cpuid	69	cpuid
70	bt $29, %edx # Test if long mode is supported.	70	bt $29, %edx # Test if long mode is supported.
71	jnc no_long_mode	71	jnc no_long_mode
72		72
73	# Load gdtr, idtr	73	# Load gdtr, idtr
74	lgdt real_bootstrap_gdtr_boot	74	lgdt real_bootstrap_gdtr_boot
75		75
76	movl %cr0,%eax	76	movl %cr0,%eax
77	orl $0x1,%eax	77	orl $0x1,%eax
78	movl %eax,%cr0 # switch to protected mode	78	movl %eax,%cr0 # switch to protected mode
79		79
80	jmpl $gdtselector(KTEXT32_DES), $now_in_prot	80	jmpl $gdtselector(KTEXT32_DES), $now_in_prot
81		81
82	no_long_mode:	82	no_long_mode:
83	1:	83	1:
84	jmp 1b	84	jmp 1b
85		85
86	# Protected 32-bit. We want to reuse the code-seg descriptor,	86	# Protected 32-bit. We want to reuse the code-seg descriptor,
87	# the Default operand size must not be 1 when entering long mode	87	# the Default operand size must not be 1 when entering long mode
88	.code32	88	.code32
89	now_in_prot:	89	now_in_prot:
90	# Set up stack & data descriptors	90	# Set up stack & data descriptors
91	movw $gdtselector(KDATA_DES), %ax	91	movw $gdtselector(KDATA_DES), %ax
92	movw %ax, %ds	92	movw %ax, %ds
93	movw %ax, %ss	93	movw %ax, %ss
94		94
95	movb $0xd1, %al # enable A20 using the keyboard controller	95	movb $0xd1, %al # enable A20 using the keyboard controller
96	outb %al, $0x64	96	outb %al, $0x64
97	movb $0xdf, %al	97	movb $0xdf, %al
98	outb %al, $0x60	98	outb %al, $0x60
99		99
100		100
101	# Enable 64-bit page transaltion entries - CR4.PAE = 1.	101	# Enable 64-bit page transaltion entries - CR4.PAE = 1.
102	# Paging is not enabled until after long mode is enabled	102	# Paging is not enabled until after long mode is enabled
103	movl %cr4, %eax	103	movl %cr4, %eax
104	btsl $5, %eax	104	btsl $5, %eax
105	movl %eax, %cr4	105	movl %eax, %cr4
106		106
107	# Set up paging tables	107	# Set up paging tables
108	leal ptl_0, %eax	108	leal ptl_0, %eax
109	movl %eax, %cr3	109	movl %eax, %cr3
110		110
111	# Enable long mode	111	# Enable long mode
112	movl $EFER_MSR_NUM, %ecx # EFER MSR number	112	movl $EFER_MSR_NUM, %ecx # EFER MSR number
113	rdmsr # Read EFER	113	rdmsr # Read EFER
114	btsl $AMD_LME_FLAG, %eax # Set LME=1	114	btsl $AMD_LME_FLAG, %eax # Set LME=1
115	wrmsr # Write EFER	115	wrmsr # Write EFER
116		116
117	# Enable paging to activate long mode (set CR0.PG=1)	117	# Enable paging to activate long mode (set CR0.PG=1)
118	movl %cr0, %eax	118	movl %cr0, %eax
119	btsl $31, %eax	119	btsl $31, %eax
120	movl %eax, %cr0	120	movl %eax, %cr0
121		121
122	# At this point we are in compatibility mode	122	# At this point we are in compatibility mode
123	jmpl $gdtselector(KTEXT_DES), $start64	123	jmpl $gdtselector(KTEXT_DES), $start64
124		124
125	.code64	125	.code64
126	start64:	126	start64:
127	movq $(PA2KA(START_STACK)), %rsp	127	movq $(PA2KA(START_STACK)), %rsp
128		128
129	# Copy kernel to higher physical memory	129	# Copy kernel to higher physical memory
130	movq $BOOTSTRAP_OFFSET, %rsi	130	movq $BOOTSTRAP_OFFSET, %rsi
131	movq $BOOTSTRAP_OFFSET + BOOT_OFFSET, %rdi	131	movq $BOOTSTRAP_OFFSET + BOOT_OFFSET, %rdi
132	movq $_hardcoded_kernel_size, %rcx	132	movq $_hardcoded_kernel_size, %rcx
133	cld	133	cld
134	rep movsb	134	rep movsb
135		135
136	call main_bsp # never returns	136	call main_bsp # never returns
137	1:	137	1:
138	jmp 1b	138	jmp 1b
139		139
140	.section K_DATA_START, "aw", @progbits	140	.section K_DATA_START, "aw", @progbits
141	.align 4096	141	.align 4096
142		142
143	# Identical mapping of first 16MB and the same of -2GB -> 0	143	# Identical mapping of first 64MB and the same of -2GB -> 0
144	.global ptl_2	144	.global ptl_2
145	ptl_2:	145	ptl_2:
146	.quad 0x0 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	146	.quad 0x0 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
147	.quad 0x200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	147	.quad 0x200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
148	.quad 0x400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	148	.quad 0x400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
149	.quad 0x600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	149	.quad 0x600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
150	.quad 0x800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	150	.quad 0x800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
151	.quad 0xa00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	151	.quad 0xa00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
152	.quad 0xc00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	152	.quad 0xc00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
153	.quad 0xe00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)	153	.quad 0xe00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		154	.quad 0x1000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		155	.quad 0x1200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		156	.quad 0x1400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		157	.quad 0x1600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		158	.quad 0x1800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		159	.quad 0x1a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		160	.quad 0x1c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		161	.quad 0x1e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		162	.quad 0x2000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		163	.quad 0x2200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		164	.quad 0x2400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		165	.quad 0x2600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		166	.quad 0x2800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		167	.quad 0x2a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		168	.quad 0x2c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		169	.quad 0x2e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		170	.quad 0x3000000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		171	.quad 0x3200000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		172	.quad 0x3400000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		173	.quad 0x3600000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		174	.quad 0x3800000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		175	.quad 0x3a00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		176	.quad 0x3c00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
-		177	.quad 0x3e00000 \| (PTL_WRITABLE \| PTL_PRESENT \| PTL_2MB_PAGE)
154		178
155	.align 4096	179	.align 4096
156	.global ptl_1	180	.global ptl_1
157	ptl_1:	181	ptl_1:
158	.quad ptl_2 + (PTL_WRITABLE \| PTL_PRESENT)	182	.quad ptl_2 + (PTL_WRITABLE \| PTL_PRESENT)
159	.fill 509,8,0	183	.fill 509,8,0
160	.quad ptl_2 + (PTL_WRITABLE \| PTL_PRESENT)	184	.quad ptl_2 + (PTL_WRITABLE \| PTL_PRESENT)
161	.fill 1,8,0	185	.fill 1,8,0
162		186
163	.align 4096	187	.align 4096
164	.global ptl_0	188	.global ptl_0
165	ptl_0:	189	ptl_0:
166	.quad ptl_1 + (PTL_WRITABLE \| PTL_PRESENT)	190	.quad ptl_1 + (PTL_WRITABLE \| PTL_PRESENT)
167	.fill 510,8,0	191	.fill 510,8,0
168	.quad ptl_1 + (PTL_WRITABLE \| PTL_PRESENT)	192	.quad ptl_1 + (PTL_WRITABLE \| PTL_PRESENT)
169		193
170	.global real_bootstrap_gdtr_boot	194	.global real_bootstrap_gdtr_boot
171	real_bootstrap_gdtr_boot:	195	real_bootstrap_gdtr_boot:
172	.word gdtselector(GDT_ITEMS)	196	.word gdtselector(GDT_ITEMS)
173	.long KA2PA(gdt)-BOOT_OFFSET	197	.long KA2PA(gdt)-BOOT_OFFSET
174		198

Subversion Repositories HelenOS

(root)/SPARTAN/trunk/arch/amd64/src/boot/boot.S – Rev 406 → 417