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1 | 1 | ||
2 | # Copyright (c) 2005 Ondrej Palkovsky |
2 | # Copyright (c) 2005 Ondrej Palkovsky |
3 | # Copyright (c) 2006 Martin Decky |
3 | # Copyright (c) 2006 Martin Decky |
- | 4 | # Copyright (c) 2008 Jakub Jermar |
|
4 | # All rights reserved. |
5 | # All rights reserved. |
5 | # |
6 | # |
6 | # Redistribution and use in source and binary forms, with or without |
7 | # Redistribution and use in source and binary forms, with or without |
7 | # modification, are permitted provided that the following conditions |
8 | # modification, are permitted provided that the following conditions |
8 | # are met: |
9 | # are met: |
9 | # |
10 | # |
10 | # - Redistributions of source code must retain the above copyright |
11 | # - Redistributions of source code must retain the above copyright |
11 | # notice, this list of conditions and the following disclaimer. |
12 | # notice, this list of conditions and the following disclaimer. |
12 | # - Redistributions in binary form must reproduce the above copyright |
13 | # - Redistributions in binary form must reproduce the above copyright |
13 | # notice, this list of conditions and the following disclaimer in the |
14 | # notice, this list of conditions and the following disclaimer in the |
14 | # documentation and/or other materials provided with the distribution. |
15 | # documentation and/or other materials provided with the distribution. |
15 | # - The name of the author may not be used to endorse or promote products |
16 | # - The name of the author may not be used to endorse or promote products |
16 | # derived from this software without specific prior written permission. |
17 | # derived from this software without specific prior written permission. |
17 | # |
18 | # |
18 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | # (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. |
28 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | # |
29 | # |
29 | 30 | ||
30 | #include <arch/boot/boot.h> |
31 | #include <arch/boot/boot.h> |
31 | #include <arch/boot/memmap.h> |
32 | #include <arch/boot/memmap.h> |
32 | #include <arch/mm/page.h> |
33 | #include <arch/mm/page.h> |
33 | #include <arch/mm/ptl.h> |
34 | #include <arch/mm/ptl.h> |
34 | #include <arch/pm.h> |
35 | #include <arch/pm.h> |
35 | #include <arch/cpu.h> |
36 | #include <arch/cpu.h> |
36 | #include <arch/cpuid.h> |
37 | #include <arch/cpuid.h> |
37 | 38 | ||
38 | #define START_STACK (BOOT_OFFSET - BOOT_STACK_SIZE) |
39 | #define START_STACK (BOOT_OFFSET - BOOT_STACK_SIZE) |
39 | 40 | ||
40 | .section K_TEXT_START, "ax" |
41 | .section K_TEXT_START, "ax" |
41 | 42 | ||
42 | .code32 |
43 | .code32 |
43 | .align 4 |
44 | .align 4 |
44 | .global multiboot_image_start |
45 | .global multiboot_image_start |
45 | multiboot_header: |
46 | multiboot_header: |
46 | .long MULTIBOOT_HEADER_MAGIC |
47 | .long MULTIBOOT_HEADER_MAGIC |
47 | .long MULTIBOOT_HEADER_FLAGS |
48 | .long MULTIBOOT_HEADER_FLAGS |
48 | .long -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS) # checksum |
49 | .long -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS) # checksum |
49 | .long multiboot_header |
50 | .long multiboot_header |
50 | .long unmapped_ktext_start |
51 | .long unmapped_ktext_start |
51 | .long 0 |
52 | .long 0 |
52 | .long 0 |
53 | .long 0 |
53 | .long multiboot_image_start |
54 | .long multiboot_image_start |
54 | 55 | ||
55 | multiboot_image_start: |
56 | multiboot_image_start: |
56 | movl $START_STACK, %esp # initialize stack pointer |
57 | movl $START_STACK, %esp # initialize stack pointer |
57 | lgdt bootstrap_gdtr # initialize Global Descriptor Table register |
58 | lgdtl bootstrap_gdtr # initialize Global Descriptor Table register |
58 | 59 | ||
59 | movw $gdtselector(KDATA_DES), %cx |
60 | movw $gdtselector(KDATA_DES), %cx |
60 | movw %cx, %es |
61 | movw %cx, %es |
61 | movw %cx, %ds # kernel data + stack |
62 | movw %cx, %ds # kernel data + stack |
62 | movw %cx, %ss |
63 | movw %cx, %ss |
63 | # Simics seems to remove hidden part of GS on entering user mode |
64 | # 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 |
65 | # when _visible_ part of GS does not point to user-mode segment |
65 | movw $gdtselector(UDATA_DES), %cx |
66 | movw $gdtselector(UDATA_DES), %cx |
66 | movw %cx, %fs |
67 | movw %cx, %fs |
67 | movw %cx, %gs |
68 | movw %cx, %gs |
68 | 69 | ||
69 | jmpl $gdtselector(KTEXT32_DES), $multiboot_meeting_point |
70 | jmpl $gdtselector(KTEXT32_DES), $multiboot_meeting_point |
70 | multiboot_meeting_point: |
71 | multiboot_meeting_point: |
71 | 72 | ||
72 | movl %eax, grub_eax # save parameters from GRUB |
73 | movl %eax, grub_eax # save parameters from GRUB |
73 | movl %ebx, grub_ebx |
74 | movl %ebx, grub_ebx |
74 | 75 | ||
75 | # Protected 32-bit. We want to reuse the code-seg descriptor, |
76 | # Protected 32-bit. We want to reuse the code-seg descriptor, |
76 | # the Default operand size must not be 1 when entering long mode |
77 | # the Default operand size must not be 1 when entering long mode |
77 | 78 | ||
78 | movl $(INTEL_CPUID_EXTENDED), %eax |
79 | movl $(INTEL_CPUID_EXTENDED), %eax |
79 | cpuid |
80 | cpuid |
80 | cmp $(INTEL_CPUID_EXTENDED), %eax |
81 | cmp $(INTEL_CPUID_EXTENDED), %eax |
81 | ja extended_cpuid_supported |
82 | ja extended_cpuid_supported |
82 | 83 | ||
83 | movl $extended_cpuid_msg, %esi |
84 | movl $extended_cpuid_msg, %esi |
84 | jmp error_halt |
85 | jmp error_halt |
85 | 86 | ||
86 | extended_cpuid_supported: |
87 | extended_cpuid_supported: |
87 | 88 | ||
88 | movl $(AMD_CPUID_EXTENDED), %eax |
89 | movl $(AMD_CPUID_EXTENDED), %eax |
89 | cpuid |
90 | cpuid |
90 | bt $(AMD_EXT_LONG_MODE), %edx |
91 | bt $(AMD_EXT_LONG_MODE), %edx |
91 | jc long_mode_supported |
92 | jc long_mode_supported |
92 | 93 | ||
93 | movl $long_mode_msg, %esi |
94 | movl $long_mode_msg, %esi |
94 | jmp error_halt |
95 | jmp error_halt |
95 | 96 | ||
96 | long_mode_supported: |
97 | long_mode_supported: |
97 | 98 | ||
98 | bt $(AMD_EXT_NOEXECUTE), %edx |
99 | bt $(AMD_EXT_NOEXECUTE), %edx |
99 | jc noexecute_supported |
100 | jc noexecute_supported |
100 | 101 | ||
101 | movl $noexecute_msg, %esi |
102 | movl $noexecute_msg, %esi |
102 | jmp error_halt |
103 | jmp error_halt |
103 | 104 | ||
104 | noexecute_supported: |
105 | noexecute_supported: |
105 | 106 | ||
106 | movl $(INTEL_CPUID_STANDARD), %eax |
107 | movl $(INTEL_CPUID_STANDARD), %eax |
107 | cpuid |
108 | cpuid |
108 | bt $(INTEL_FXSAVE), %edx |
109 | bt $(INTEL_FXSAVE), %edx |
109 | jc fx_supported |
110 | jc fx_supported |
110 | 111 | ||
111 | movl $fx_msg, %esi |
112 | movl $fx_msg, %esi |
112 | jmp error_halt |
113 | jmp error_halt |
113 | 114 | ||
114 | fx_supported: |
115 | fx_supported: |
115 | 116 | ||
116 | bt $(INTEL_SSE2), %edx |
117 | bt $(INTEL_SSE2), %edx |
117 | jc sse2_supported |
118 | jc sse2_supported |
118 | 119 | ||
119 | movl $sse2_msg, %esi |
120 | movl $sse2_msg, %esi |
120 | jmp error_halt |
121 | jmp error_halt |
121 | 122 | ||
122 | sse2_supported: |
123 | sse2_supported: |
123 | 124 | ||
124 | #ifdef CONFIG_FB |
125 | #ifdef CONFIG_FB |
125 | mov $vesa_init, %esi |
126 | mov $vesa_init, %esi |
126 | mov $VESA_INIT_SEGMENT << 4, %edi |
127 | mov $VESA_INIT_SEGMENT << 4, %edi |
127 | mov $e_vesa_init - vesa_init, %ecx |
128 | mov $e_vesa_init - vesa_init, %ecx |
128 | cld |
129 | cld |
129 | rep movsb |
130 | rep movsb |
130 | 131 | ||
131 | mov $VESA_INIT_SEGMENT << 4, %edi |
132 | mov $VESA_INIT_SEGMENT << 4, %edi |
132 | jmpl *%edi |
133 | jmpl *%edi |
133 | 134 | ||
134 | vesa_meeting_point: |
135 | vesa_meeting_point: |
135 | 136 | ||
136 | mov %esi, KA2PA(vesa_ph_addr) |
137 | mov %esi, KA2PA(vesa_ph_addr) |
137 | mov %di, KA2PA(vesa_height) |
138 | mov %di, KA2PA(vesa_height) |
138 | shr $16, %edi |
139 | shr $16, %edi |
139 | mov %di, KA2PA(vesa_width) |
140 | mov %di, KA2PA(vesa_width) |
140 | mov %bx, KA2PA(vesa_scanline) |
141 | mov %bx, KA2PA(vesa_scanline) |
141 | shr $16, %ebx |
142 | shr $16, %ebx |
142 | mov %bx, KA2PA(vesa_bpp) |
143 | mov %bx, KA2PA(vesa_bpp) |
143 | #endif |
144 | #endif |
144 | 145 | ||
145 | # Enable 64-bit page translation entries - CR4.PAE = 1. |
146 | # Enable 64-bit page translation entries - CR4.PAE = 1. |
146 | # Paging is not enabled until after long mode is enabled |
147 | # Paging is not enabled until after long mode is enabled |
147 | 148 | ||
148 | movl %cr4, %eax |
149 | movl %cr4, %eax |
149 | btsl $5, %eax |
150 | btsl $5, %eax |
150 | movl %eax, %cr4 |
151 | movl %eax, %cr4 |
151 | 152 | ||
152 | # Set up paging tables |
153 | # Set up paging tables |
153 | 154 | ||
154 | leal ptl_0, %eax |
155 | leal ptl_0, %eax |
155 | movl %eax, %cr3 |
156 | movl %eax, %cr3 |
156 | 157 | ||
157 | # Enable long mode |
158 | # Enable long mode |
158 | 159 | ||
159 | movl $EFER_MSR_NUM, %ecx # EFER MSR number |
160 | movl $EFER_MSR_NUM, %ecx # EFER MSR number |
160 | rdmsr # Read EFER |
161 | rdmsr # Read EFER |
161 | btsl $AMD_LME_FLAG, %eax # Set LME = 1 |
162 | btsl $AMD_LME_FLAG, %eax # Set LME = 1 |
162 | wrmsr # Write EFER |
163 | wrmsr # Write EFER |
163 | 164 | ||
164 | # Enable paging to activate long mode (set CR0.PG = 1) |
165 | # Enable paging to activate long mode (set CR0.PG = 1) |
165 | 166 | ||
166 | movl %cr0, %eax |
167 | movl %cr0, %eax |
167 | btsl $31, %eax |
168 | btsl $31, %eax |
168 | movl %eax, %cr0 |
169 | movl %eax, %cr0 |
169 | 170 | ||
170 | # At this point we are in compatibility mode |
171 | # At this point we are in compatibility mode |
171 | 172 | ||
172 | jmpl $gdtselector(KTEXT_DES), $start64 |
173 | jmpl $gdtselector(KTEXT_DES), $start64 |
173 | 174 | ||
174 | .code64 |
175 | .code64 |
175 | start64: |
176 | start64: |
176 | movq $(PA2KA(START_STACK)), %rsp |
177 | movq $(PA2KA(START_STACK)), %rsp |
177 | movl grub_eax, %eax |
178 | movl grub_eax, %eax |
178 | movl grub_ebx, %ebx |
179 | movl grub_ebx, %ebx |
179 | 180 | ||
180 | cmpl $MULTIBOOT_LOADER_MAGIC, %eax # compare GRUB signature |
181 | cmpl $MULTIBOOT_LOADER_MAGIC, %eax # compare GRUB signature |
181 | je valid_boot |
182 | je valid_boot |
182 | 183 | ||
183 | xorl %ecx, %ecx # no memory size or map available |
184 | xorl %ecx, %ecx # no memory size or map available |
184 | movl %ecx, e801memorysize |
185 | movl %ecx, e801memorysize |
185 | movl %ecx, e820counter |
186 | movl %ecx, e820counter |
186 | 187 | ||
187 | jmp invalid_boot |
188 | jmp invalid_boot |
188 | 189 | ||
189 | valid_boot: |
190 | valid_boot: |
190 | 191 | ||
191 | movl (%ebx), %eax # ebx = physical address of struct multiboot_info |
192 | movl (%ebx), %eax # ebx = physical address of struct multiboot_info |
192 | 193 | ||
193 | bt $0, %eax # mbi->flags[0] (mem_lower, mem_upper valid) |
194 | bt $0, %eax # mbi->flags[0] (mem_lower, mem_upper valid) |
194 | jc mem_valid |
195 | jc mem_valid |
195 | 196 | ||
196 | xorl %ecx, %ecx |
197 | xorl %ecx, %ecx |
197 | jmp mem_invalid |
198 | jmp mem_invalid |
198 | 199 | ||
199 | mem_valid: |
200 | mem_valid: |
200 | movl 4(%ebx), %ecx # mbi->mem_lower |
201 | movl 4(%ebx), %ecx # mbi->mem_lower |
201 | addl 8(%ebx), %ecx # mbi->mem_upper |
202 | addl 8(%ebx), %ecx # mbi->mem_upper |
202 | 203 | ||
203 | mem_invalid: |
204 | mem_invalid: |
204 | movl %ecx, e801memorysize |
205 | movl %ecx, e801memorysize |
205 | 206 | ||
206 | bt $3, %eax # mbi->flags[3] (mods_count, mods_addr valid) |
207 | bt $3, %eax # mbi->flags[3] (mods_count, mods_addr valid) |
207 | jc mods_valid |
208 | jc mods_valid |
208 | 209 | ||
209 | xorq %rcx, %rcx |
210 | xorq %rcx, %rcx |
210 | movq %rcx, init |
211 | movq %rcx, init |
211 | jmp mods_end |
212 | jmp mods_end |
212 | 213 | ||
213 | mods_valid: |
214 | mods_valid: |
214 | 215 | ||
215 | xorq %rcx, %rcx |
216 | xorq %rcx, %rcx |
216 | movl 20(%ebx), %ecx # mbi->mods_count |
217 | movl 20(%ebx), %ecx # mbi->mods_count |
217 | movq %rcx, init |
218 | movq %rcx, init |
218 | 219 | ||
219 | cmpl $0, %ecx |
220 | cmpl $0, %ecx |
220 | je mods_end |
221 | je mods_end |
221 | 222 | ||
222 | movl 24(%ebx), %esi # mbi->mods_addr |
223 | movl 24(%ebx), %esi # mbi->mods_addr |
223 | movq $init, %rdi |
224 | movq $init, %rdi |
224 | 225 | ||
225 | mods_loop: |
226 | mods_loop: |
226 | 227 | ||
227 | xorq %rdx, %rdx |
228 | xorq %rdx, %rdx |
228 | movl 0(%esi), %edx # mods->mod_start |
229 | movl 0(%esi), %edx # mods->mod_start |
229 | movq $0xffff800000000000, %r10 |
230 | movq $0xffff800000000000, %r10 |
230 | addq %r10, %rdx |
231 | addq %r10, %rdx |
231 | movq %rdx, 8(%rdi) |
232 | movq %rdx, 8(%rdi) |
232 | 233 | ||
233 | xorq %rdx, %rdx |
234 | xorq %rdx, %rdx |
234 | movl 4(%esi), %edx |
235 | movl 4(%esi), %edx |
235 | subl 0(%esi), %edx # mods->mod_end - mods->mod_start |
236 | subl 0(%esi), %edx # mods->mod_end - mods->mod_start |
236 | movq %rdx, 16(%rdi) |
237 | movq %rdx, 16(%rdi) |
237 | 238 | ||
238 | addl $16, %esi |
239 | addl $16, %esi |
239 | addq $16, %rdi |
240 | addq $16, %rdi |
240 | 241 | ||
241 | loop mods_loop |
242 | loop mods_loop |
242 | 243 | ||
243 | mods_end: |
244 | mods_end: |
244 | 245 | ||
245 | bt $6, %eax # mbi->flags[6] (mmap_length, mmap_addr valid) |
246 | bt $6, %eax # mbi->flags[6] (mmap_length, mmap_addr valid) |
246 | jc mmap_valid |
247 | jc mmap_valid |
247 | 248 | ||
248 | xorl %edx, %edx |
249 | xorl %edx, %edx |
249 | jmp mmap_invalid |
250 | jmp mmap_invalid |
250 | 251 | ||
251 | mmap_valid: |
252 | mmap_valid: |
252 | movl 44(%ebx), %ecx # mbi->mmap_length |
253 | movl 44(%ebx), %ecx # mbi->mmap_length |
253 | movl 48(%ebx), %esi # mbi->mmap_addr |
254 | movl 48(%ebx), %esi # mbi->mmap_addr |
254 | movq $e820table, %rdi |
255 | movq $e820table, %rdi |
255 | xorl %edx, %edx |
256 | xorl %edx, %edx |
256 | 257 | ||
257 | mmap_loop: |
258 | mmap_loop: |
258 | cmpl $0, %ecx |
259 | cmpl $0, %ecx |
259 | jle mmap_end |
260 | jle mmap_end |
260 | 261 | ||
261 | movl 4(%esi), %eax # mmap->base_addr_low |
262 | movl 4(%esi), %eax # mmap->base_addr_low |
262 | movl %eax, (%rdi) |
263 | movl %eax, (%rdi) |
263 | 264 | ||
264 | movl 8(%esi), %eax # mmap->base_addr_high |
265 | movl 8(%esi), %eax # mmap->base_addr_high |
265 | movl %eax, 4(%rdi) |
266 | movl %eax, 4(%rdi) |
266 | 267 | ||
267 | movl 12(%esi), %eax # mmap->length_low |
268 | movl 12(%esi), %eax # mmap->length_low |
268 | movl %eax, 8(%rdi) |
269 | movl %eax, 8(%rdi) |
269 | 270 | ||
270 | movl 16(%esi), %eax # mmap->length_high |
271 | movl 16(%esi), %eax # mmap->length_high |
271 | movl %eax, 12(%rdi) |
272 | movl %eax, 12(%rdi) |
272 | 273 | ||
273 | movl 20(%esi), %eax # mmap->type |
274 | movl 20(%esi), %eax # mmap->type |
274 | movl %eax, 16(%rdi) |
275 | movl %eax, 16(%rdi) |
275 | 276 | ||
276 | movl (%esi), %eax # mmap->size |
277 | movl (%esi), %eax # mmap->size |
277 | addl $0x4, %eax |
278 | addl $0x4, %eax |
278 | addl %eax, %esi |
279 | addl %eax, %esi |
279 | subl %eax, %ecx |
280 | subl %eax, %ecx |
280 | addq $MEMMAP_E820_RECORD_SIZE, %rdi |
281 | addq $MEMMAP_E820_RECORD_SIZE, %rdi |
281 | incl %edx |
282 | incl %edx |
282 | jmp mmap_loop |
283 | jmp mmap_loop |
283 | 284 | ||
284 | mmap_end: |
285 | mmap_end: |
285 | 286 | ||
286 | mmap_invalid: |
287 | mmap_invalid: |
287 | movl %edx, e820counter |
288 | movl %edx, e820counter |
288 | 289 | ||
289 | invalid_boot: |
290 | invalid_boot: |
290 | 291 | ||
291 | #ifdef CONFIG_SMP |
292 | #ifdef CONFIG_SMP |
292 | 293 | ||
293 | # copy AP bootstrap routines below 1 MB |
294 | # copy AP bootstrap routines below 1 MB |
294 | 295 | ||
295 | movq $BOOT_OFFSET, %rsi |
296 | movq $BOOT_OFFSET, %rsi |
296 | movq $AP_BOOT_OFFSET, %rdi |
297 | movq $AP_BOOT_OFFSET, %rdi |
297 | movq $_hardcoded_unmapped_size, %rcx |
298 | movq $_hardcoded_unmapped_size, %rcx |
298 | cld |
299 | cld |
299 | rep movsb |
300 | rep movsb |
300 | 301 | ||
301 | #endif |
302 | #endif |
302 | 303 | ||
303 | call main_bsp # never returns |
304 | call main_bsp # never returns |
304 | 305 | ||
305 | cli |
306 | cli |
306 | hlt |
307 | hlt |
307 | 308 | ||
308 | #ifdef CONFIG_FB |
309 | #ifdef CONFIG_FB |
309 | .code32 |
310 | .code32 |
310 | vesa_init: |
311 | vesa_init: |
311 | jmp $gdtselector(VESA_INIT_DES), $vesa_init_real - vesa_init |
312 | jmp $gdtselector(VESA_INIT_DES), $vesa_init_real - vesa_init |
312 | 313 | ||
313 | .code16 |
314 | .code16 |
314 | vesa_init_real: |
315 | vesa_init_real: |
315 | 316 | ||
316 | mov %cr0, %eax |
317 | mov %cr0, %eax |
317 | and $~1, %eax |
318 | and $~1, %eax |
318 | mov %eax, %cr0 |
319 | mov %eax, %cr0 |
319 | 320 | ||
320 | jmp $VESA_INIT_SEGMENT, $vesa_init_real2 - vesa_init |
321 | jmp $VESA_INIT_SEGMENT, $vesa_init_real2 - vesa_init |
321 | 322 | ||
322 | vesa_init_real2: |
323 | vesa_init_real2: |
323 | 324 | ||
324 | mov $VESA_INIT_SEGMENT, %bx |
325 | mov $VESA_INIT_SEGMENT, %bx |
325 | 326 | ||
326 | mov %bx, %es |
327 | mov %bx, %es |
327 | mov %bx, %fs |
328 | mov %bx, %fs |
328 | mov %bx, %gs |
329 | mov %bx, %gs |
329 | mov %bx, %ds |
330 | mov %bx, %ds |
330 | mov %bx, %ss |
331 | mov %bx, %ss |
331 | 332 | ||
332 | movl $0x0000fffc, %esp |
333 | movl $0x0000fffc, %esp |
333 | movl $0x0000fffc, %ebp |
334 | movl $0x0000fffc, %ebp |
334 | 335 | ||
335 | #define VESA_INFO_SIZE 1024 |
336 | #define VESA_INFO_SIZE 1024 |
336 | 337 | ||
337 | #define VESA_MODE_ATTRIBUTES_OFFSET 0 |
338 | #define VESA_MODE_ATTRIBUTES_OFFSET 0 |
338 | #define VESA_MODE_LIST_PTR_OFFSET 14 |
339 | #define VESA_MODE_LIST_PTR_OFFSET 14 |
339 | #define VESA_MODE_SCANLINE_OFFSET 16 |
340 | #define VESA_MODE_SCANLINE_OFFSET 16 |
340 | #define VESA_MODE_WIDTH_OFFSET 18 |
341 | #define VESA_MODE_WIDTH_OFFSET 18 |
341 | #define VESA_MODE_HEIGHT_OFFSET 20 |
342 | #define VESA_MODE_HEIGHT_OFFSET 20 |
342 | #define VESA_MODE_BPP_OFFSET 25 |
343 | #define VESA_MODE_BPP_OFFSET 25 |
343 | #define VESA_MODE_PHADDR_OFFSET 40 |
344 | #define VESA_MODE_PHADDR_OFFSET 40 |
344 | 345 | ||
345 | #define VESA_END_OF_MODES 0xffff |
346 | #define VESA_END_OF_MODES 0xffff |
346 | 347 | ||
347 | #define VESA_OK 0x4f |
348 | #define VESA_OK 0x4f |
348 | 349 | ||
349 | #define VESA_GET_INFO 0x4f00 |
350 | #define VESA_GET_INFO 0x4f00 |
350 | #define VESA_GET_MODE_INFO 0x4f01 |
351 | #define VESA_GET_MODE_INFO 0x4f01 |
351 | #define VESA_SET_MODE 0x4f02 |
352 | #define VESA_SET_MODE 0x4f02 |
352 | #define VESA_SET_PALETTE 0x4f09 |
353 | #define VESA_SET_PALETTE 0x4f09 |
353 | 354 | ||
354 | #define CONFIG_VESA_BPP_a 255 |
355 | #define CONFIG_VESA_BPP_a 255 |
355 | 356 | ||
356 | #if CONFIG_VESA_BPP == 24 |
357 | #if CONFIG_VESA_BPP == 24 |
357 | #define CONFIG_VESA_BPP_VARIANT 32 |
358 | #define CONFIG_VESA_BPP_VARIANT 32 |
358 | #endif |
359 | #endif |
359 | 360 | ||
360 | mov $VESA_GET_INFO, %ax |
361 | mov $VESA_GET_INFO, %ax |
361 | mov $e_vesa_init - vesa_init, %di |
362 | mov $e_vesa_init - vesa_init, %di |
362 | push %di |
363 | push %di |
363 | int $0x10 |
364 | int $0x10 |
364 | 365 | ||
365 | pop %di |
366 | pop %di |
366 | cmp $VESA_OK, %al |
367 | cmp $VESA_OK, %al |
367 | jnz 0f |
368 | jnz 0f |
368 | 369 | ||
369 | mov 2 + VESA_MODE_LIST_PTR_OFFSET(%di), %si |
370 | mov 2 + VESA_MODE_LIST_PTR_OFFSET(%di), %si |
370 | mov %si, %gs |
371 | mov %si, %gs |
371 | mov VESA_MODE_LIST_PTR_OFFSET(%di), %si |
372 | mov VESA_MODE_LIST_PTR_OFFSET(%di), %si |
372 | 373 | ||
373 | add $VESA_INFO_SIZE, %di |
374 | add $VESA_INFO_SIZE, %di |
374 | 375 | ||
375 | 1:# Try next mode |
376 | 1:# Try next mode |
376 | mov %gs:(%si), %cx |
377 | mov %gs:(%si), %cx |
377 | cmp $VESA_END_OF_MODES, %cx |
378 | cmp $VESA_END_OF_MODES, %cx |
378 | jz 0f |
379 | jz 0f |
379 | 380 | ||
380 | inc %si |
381 | inc %si |
381 | inc %si |
382 | inc %si |
382 | push %cx |
383 | push %cx |
383 | push %di |
384 | push %di |
384 | push %si |
385 | push %si |
385 | mov $VESA_GET_MODE_INFO, %ax |
386 | mov $VESA_GET_MODE_INFO, %ax |
386 | int $0x10 |
387 | int $0x10 |
387 | 388 | ||
388 | pop %si |
389 | pop %si |
389 | pop %di |
390 | pop %di |
390 | pop %cx |
391 | pop %cx |
391 | cmp $VESA_OK, %al |
392 | cmp $VESA_OK, %al |
392 | jnz 0f |
393 | jnz 0f |
393 | 394 | ||
394 | mov $CONFIG_VESA_WIDTH, %ax |
395 | mov $CONFIG_VESA_WIDTH, %ax |
395 | cmp VESA_MODE_WIDTH_OFFSET(%di), %ax |
396 | cmp VESA_MODE_WIDTH_OFFSET(%di), %ax |
396 | jnz 1b |
397 | jnz 1b |
397 | 398 | ||
398 | mov $CONFIG_VESA_HEIGHT, %ax |
399 | mov $CONFIG_VESA_HEIGHT, %ax |
399 | cmp VESA_MODE_HEIGHT_OFFSET(%di), %ax |
400 | cmp VESA_MODE_HEIGHT_OFFSET(%di), %ax |
400 | jnz 1b |
401 | jnz 1b |
401 | 402 | ||
402 | mov $CONFIG_VESA_BPP, %al |
403 | mov $CONFIG_VESA_BPP, %al |
403 | cmp VESA_MODE_BPP_OFFSET(%di), %al |
404 | cmp VESA_MODE_BPP_OFFSET(%di), %al |
404 | 405 | ||
405 | #ifdef CONFIG_VESA_BPP_VARIANT |
406 | #ifdef CONFIG_VESA_BPP_VARIANT |
406 | jz 2f |
407 | jz 2f |
407 | 408 | ||
408 | mov $CONFIG_VESA_BPP_VARIANT, %al |
409 | mov $CONFIG_VESA_BPP_VARIANT, %al |
409 | cmp VESA_MODE_BPP_OFFSET(%di), %al |
410 | cmp VESA_MODE_BPP_OFFSET(%di), %al |
410 | #endif |
411 | #endif |
411 | jnz 1b |
412 | jnz 1b |
412 | 413 | ||
413 | 2: |
414 | 2: |
414 | 415 | ||
415 | mov %cx, %bx |
416 | mov %cx, %bx |
416 | or $0xc000, %bx |
417 | or $0xc000, %bx |
417 | push %di |
418 | push %di |
418 | mov $VESA_SET_MODE, %ax |
419 | mov $VESA_SET_MODE, %ax |
419 | int $0x10 |
420 | int $0x10 |
420 | 421 | ||
421 | pop %di |
422 | pop %di |
422 | cmp $VESA_OK, %al |
423 | cmp $VESA_OK, %al |
423 | jnz 0f |
424 | jnz 0f |
424 | 425 | ||
425 | #if CONFIG_VESA_BPP == 8 |
426 | #if CONFIG_VESA_BPP == 8 |
426 | 427 | ||
427 | # Set 3:2:3 VGA palette |
428 | # Set 3:2:3 VGA palette |
428 | 429 | ||
429 | mov VESA_MODE_ATTRIBUTES_OFFSET(%di), %ax |
430 | mov VESA_MODE_ATTRIBUTES_OFFSET(%di), %ax |
430 | push %di |
431 | push %di |
431 | mov $vga323 - vesa_init, %di |
432 | mov $vga323 - vesa_init, %di |
432 | mov $0x100, %ecx |
433 | mov $0x100, %ecx |
433 | 434 | ||
434 | bt $5, %ax # Test if VGA compatible registers are present |
435 | bt $5, %ax # Test if VGA compatible registers are present |
435 | jnc vga_compat |
436 | jnc vga_compat |
436 | 437 | ||
437 | # Try VESA routine to set palette |
438 | # Try VESA routine to set palette |
438 | 439 | ||
439 | mov $VESA_SET_PALETTE, %ax |
440 | mov $VESA_SET_PALETTE, %ax |
440 | xor %bl, %bl |
441 | xor %bl, %bl |
441 | xor %dx, %dx |
442 | xor %dx, %dx |
442 | int $0x10 |
443 | int $0x10 |
443 | 444 | ||
444 | jmp vga_not_compat |
445 | jmp vga_not_compat |
445 | 446 | ||
446 | vga_compat: |
447 | vga_compat: |
447 | 448 | ||
448 | # Try VGA registers to set palette |
449 | # Try VGA registers to set palette |
449 | 450 | ||
450 | movw $0x3c6, %dx # Set palette mask |
451 | movw $0x3c6, %dx # Set palette mask |
451 | movb $0xff, %al |
452 | movb $0xff, %al |
452 | outb %al, %dx |
453 | outb %al, %dx |
453 | 454 | ||
454 | movw $0x3c8, %dx # First index to set |
455 | movw $0x3c8, %dx # First index to set |
455 | xor %al, %al |
456 | xor %al, %al |
456 | outb %al, %dx |
457 | outb %al, %dx |
457 | 458 | ||
458 | movw $0x3c9, %dx # Data port |
459 | movw $0x3c9, %dx # Data port |
459 | vga_loop: |
460 | vga_loop: |
460 | movb %es:2(%di), %al |
461 | movb %es:2(%di), %al |
461 | outb %al, %dx |
462 | outb %al, %dx |
462 | 463 | ||
463 | movb %es:1(%di), %al |
464 | movb %es:1(%di), %al |
464 | outb %al, %dx |
465 | outb %al, %dx |
465 | 466 | ||
466 | movb %es:(%di), %al |
467 | movb %es:(%di), %al |
467 | outb %al, %dx |
468 | outb %al, %dx |
468 | 469 | ||
469 | addw $4, %di |
470 | addw $4, %di |
470 | loop vga_loop |
471 | loop vga_loop |
471 | 472 | ||
472 | vga_not_compat: |
473 | vga_not_compat: |
473 | 474 | ||
474 | pop %di |
475 | pop %di |
475 | 476 | ||
476 | #endif |
477 | #endif |
477 | 478 | ||
478 | mov VESA_MODE_PHADDR_OFFSET(%di), %esi |
479 | mov VESA_MODE_PHADDR_OFFSET(%di), %esi |
479 | mov VESA_MODE_WIDTH_OFFSET(%di), %ax |
480 | mov VESA_MODE_WIDTH_OFFSET(%di), %ax |
480 | shl $16, %eax |
481 | shl $16, %eax |
481 | mov VESA_MODE_HEIGHT_OFFSET(%di), %ax |
482 | mov VESA_MODE_HEIGHT_OFFSET(%di), %ax |
482 | mov VESA_MODE_BPP_OFFSET(%di), %bl |
483 | mov VESA_MODE_BPP_OFFSET(%di), %bl |
483 | xor %bh, %bh |
484 | xor %bh, %bh |
484 | shl $16, %ebx |
485 | shl $16, %ebx |
485 | mov VESA_MODE_SCANLINE_OFFSET(%di), %bx |
486 | mov VESA_MODE_SCANLINE_OFFSET(%di), %bx |
486 | mov %eax, %edi |
487 | mov %eax, %edi |
487 | 488 | ||
488 | 8: |
489 | 8: |
489 | 490 | ||
490 | mov %cr0, %eax |
491 | mov %cr0, %eax |
491 | or $1, %eax |
492 | or $1, %eax |
492 | mov %eax, %cr0 |
493 | mov %eax, %cr0 |
493 | 494 | ||
494 | jmp 9f |
495 | jmp 9f |
495 | 9: |
496 | 9: |
496 | 497 | ||
497 | ljmpl $gdtselector(KTEXT32_DES), $(vesa_init_protect - vesa_init + VESA_INIT_SEGMENT << 4) |
498 | ljmpl $gdtselector(KTEXT32_DES), $(vesa_init_protect - vesa_init + VESA_INIT_SEGMENT << 4) |
498 | 499 | ||
499 | 0:# No prefered mode found |
500 | 0:# No prefered mode found |
500 | mov $0x111, %cx |
501 | mov $0x111, %cx |
501 | push %di |
502 | push %di |
502 | push %cx |
503 | push %cx |
503 | mov $VESA_GET_MODE_INFO, %ax |
504 | mov $VESA_GET_MODE_INFO, %ax |
504 | int $0x10 |
505 | int $0x10 |
505 | 506 | ||
506 | pop %cx |
507 | pop %cx |
507 | pop %di |
508 | pop %di |
508 | cmp $VESA_OK, %al |
509 | cmp $VESA_OK, %al |
509 | jnz 1f |
510 | jnz 1f |
510 | jz 2b # Force relative jump |
511 | jz 2b # Force relative jump |
511 | 512 | ||
512 | 1: |
513 | 1: |
513 | mov $0x0003, %ax |
514 | mov $0x0003, %ax |
514 | int $0x10 |
515 | int $0x10 |
515 | mov $0xffffffff, %edi # EGA text mode used, because of problems with VESA |
516 | mov $0xffffffff, %edi # EGA text mode used, because of problems with VESA |
516 | xor %ax, %ax |
517 | xor %ax, %ax |
517 | jz 8b # Force relative jump |
518 | jz 8b # Force relative jump |
518 | 519 | ||
519 | vga323: |
520 | vga323: |
520 | #include "vga323.pal" |
521 | #include "vga323.pal" |
521 | 522 | ||
522 | .code32 |
523 | .code32 |
523 | vesa_init_protect: |
524 | vesa_init_protect: |
524 | movw $gdtselector(KDATA_DES), %cx |
525 | movw $gdtselector(KDATA_DES), %cx |
525 | movw %cx, %es |
526 | movw %cx, %es |
526 | movw %cx, %ds # kernel data + stack |
527 | movw %cx, %ds # kernel data + stack |
527 | movw %cx, %ss |
528 | movw %cx, %ss |
528 | # Simics seems to remove hidden part of GS on entering user mode |
529 | # Simics seems to remove hidden part of GS on entering user mode |
529 | # when _visible_ part of GS does not point to user-mode segment |
530 | # when _visible_ part of GS does not point to user-mode segment |
530 | movw $gdtselector(UDATA_DES), %cx |
531 | movw $gdtselector(UDATA_DES), %cx |
531 | movw %cx, %fs |
532 | movw %cx, %fs |
532 | movw %cx, %gs |
533 | movw %cx, %gs |
533 | 534 | ||
534 | movl $START_STACK, %esp # initialize stack pointer |
535 | movl $START_STACK, %esp # initialize stack pointer |
535 | 536 | ||
536 | jmpl $gdtselector(KTEXT32_DES), $vesa_meeting_point |
537 | jmpl $gdtselector(KTEXT32_DES), $vesa_meeting_point |
537 | 538 | ||
538 | .align 4 |
539 | .align 4 |
539 | e_vesa_init: |
540 | e_vesa_init: |
540 | #endif |
541 | #endif |
541 | 542 | ||
542 | # Print string from %esi to EGA display (in red) and halt |
543 | # Print string from %esi to EGA display (in red) and halt |
543 | error_halt: |
544 | error_halt: |
544 | movl $0xb8000, %edi # base of EGA text mode memory |
545 | movl $0xb8000, %edi # base of EGA text mode memory |
545 | xorl %eax, %eax |
546 | xorl %eax, %eax |
546 | 547 | ||
547 | movw $0x3d4, %dx # read bits 8 - 15 of the cursor address |
548 | movw $0x3d4, %dx # read bits 8 - 15 of the cursor address |
548 | movb $0xe, %al |
549 | movb $0xe, %al |
549 | outb %al, %dx |
550 | outb %al, %dx |
550 | 551 | ||
551 | movw $0x3d5, %dx |
552 | movw $0x3d5, %dx |
552 | inb %dx, %al |
553 | inb %dx, %al |
553 | shl $8, %ax |
554 | shl $8, %ax |
554 | 555 | ||
555 | movw $0x3d4, %dx # read bits 0 - 7 of the cursor address |
556 | movw $0x3d4, %dx # read bits 0 - 7 of the cursor address |
556 | movb $0xf, %al |
557 | movb $0xf, %al |
557 | outb %al, %dx |
558 | outb %al, %dx |
558 | 559 | ||
559 | movw $0x3d5, %dx |
560 | movw $0x3d5, %dx |
560 | inb %dx, %al |
561 | inb %dx, %al |
561 | 562 | ||
562 | cmp $1920, %ax |
563 | cmp $1920, %ax |
563 | jbe cursor_ok |
564 | jbe cursor_ok |
564 | movw $1920, %ax # sanity check for the cursor on the last line |
565 | movw $1920, %ax # sanity check for the cursor on the last line |
565 | cursor_ok: |
566 | cursor_ok: |
566 | 567 | ||
567 | movw %ax, %bx |
568 | movw %ax, %bx |
568 | shl $1, %eax |
569 | shl $1, %eax |
569 | addl %eax, %edi |
570 | addl %eax, %edi |
570 | 571 | ||
571 | movw $0x0c00, %ax # black background, light red foreground |
572 | movw $0x0c00, %ax # black background, light red foreground |
572 | cld |
573 | cld |
573 | 574 | ||
574 | ploop: |
575 | ploop: |
575 | lodsb |
576 | lodsb |
576 | cmp $0, %al |
577 | cmp $0, %al |
577 | je ploop_end |
578 | je ploop_end |
578 | stosw |
579 | stosw |
579 | inc %bx |
580 | inc %bx |
580 | jmp ploop |
581 | jmp ploop |
581 | ploop_end: |
582 | ploop_end: |
582 | 583 | ||
583 | movw $0x3d4, %dx # write bits 8 - 15 of the cursor address |
584 | movw $0x3d4, %dx # write bits 8 - 15 of the cursor address |
584 | movb $0xe, %al |
585 | movb $0xe, %al |
585 | outb %al, %dx |
586 | outb %al, %dx |
586 | 587 | ||
587 | movw $0x3d5, %dx |
588 | movw $0x3d5, %dx |
588 | movb %bh, %al |
589 | movb %bh, %al |
589 | outb %al, %dx |
590 | outb %al, %dx |
590 | 591 | ||
591 | movw $0x3d4, %dx # write bits 0 - 7 of the cursor address |
592 | movw $0x3d4, %dx # write bits 0 - 7 of the cursor address |
592 | movb $0xf, %al |
593 | movb $0xf, %al |
593 | outb %al, %dx |
594 | outb %al, %dx |
594 | 595 | ||
595 | movw $0x3d5, %dx |
596 | movw $0x3d5, %dx |
596 | movb %bl, %al |
597 | movb %bl, %al |
597 | outb %al, %dx |
598 | outb %al, %dx |
598 | 599 | ||
599 | cli |
600 | cli |
600 | hlt |
601 | hlt |
601 | 602 | ||
- | 603 | ||
602 | .section K_DATA_START, "aw", @progbits |
604 | .section K_INI_PTLS, "aw", @progbits |
- | 605 | ||
- | 606 | # |
|
- | 607 | # Macro for generating initial page table contents. |
|
- | 608 | # @param cnt Number of entries to generat. Must be multiple of 8. |
|
- | 609 | # @param g Number of GB that will be added to the mapping. |
|
- | 610 | # |
|
- | 611 | .macro ptl2gen cnt g |
|
- | 612 | .if \cnt |
|
- | 613 | ptl2gen "\cnt - 8" \g |
|
- | 614 | .quad ((\cnt - 8) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 615 | .quad ((\cnt - 7) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 616 | .quad ((\cnt - 6) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 617 | .quad ((\cnt - 5) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 618 | .quad ((\cnt - 4) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 619 | .quad ((\cnt - 3) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 620 | .quad ((\cnt - 2) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 621 | .quad ((\cnt - 1) * 0x200000) + (\g * 1024 * 1024 * 1024) | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
|
- | 622 | .endif |
|
- | 623 | .endm |
|
- | 624 | ||
- | 625 | # Page table for pages in the first gigabyte. |
|
603 | .align 4096 |
626 | .align 4096 |
- | 627 | .global ptl_2_0g |
|
- | 628 | ptl_2_0g: |
|
- | 629 | ptl2gen 512 0 |
|
- | 630 | ||
- | 631 | # Page table for pages in the second gigabyte. |
|
- | 632 | .align 4096 |
|
- | 633 | .global ptl_2_1g |
|
- | 634 | ptl_2_1g: |
|
- | 635 | ptl2gen 512 1 |
|
- | 636 | ||
- | 637 | # Page table for pages in the third gigabyte. |
|
- | 638 | .align 4096 |
|
- | 639 | .global ptl_2_2g |
|
- | 640 | ptl_2_2g: |
|
- | 641 | ptl2gen 512 2 |
|
- | 642 | ||
- | 643 | # Page table for pages in the fourth gigabyte. |
|
- | 644 | .align 4096 |
|
- | 645 | .global ptl_2_3g |
|
- | 646 | ptl_2_3g: |
|
- | 647 | ptl2gen 512 3 |
|
604 | 648 | ||
605 | # Identical mapping of first 64MB and the same of -2GB -> 0 |
- | |
606 | .global ptl_2 |
- | |
607 | ptl_2: |
- | |
608 | .quad 0x0 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
609 | .quad 0x200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
610 | .quad 0x400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
611 | .quad 0x600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
612 | .quad 0x800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
613 | .quad 0xa00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
614 | .quad 0xc00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
615 | .quad 0xe00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
616 | .quad 0x1000000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
617 | .quad 0x1200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
618 | .quad 0x1400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
619 | .quad 0x1600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
620 | .quad 0x1800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
621 | .quad 0x1a00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
622 | .quad 0x1c00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
623 | .quad 0x1e00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
624 | .quad 0x2000000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
625 | .quad 0x2200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
626 | .quad 0x2400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
627 | .quad 0x2600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
628 | .quad 0x2800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
629 | .quad 0x2a00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
630 | .quad 0x2c00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
631 | .quad 0x2e00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
632 | .quad 0x3000000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
633 | .quad 0x3200000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
634 | .quad 0x3400000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
635 | .quad 0x3600000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
636 | .quad 0x3800000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
637 | .quad 0x3a00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
638 | .quad 0x3c00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
639 | .quad 0x3e00000 | (PTL_WRITABLE | PTL_PRESENT | PTL_2MB_PAGE) |
- | |
640 | - | ||
641 | .align 4096 |
649 | .align 4096 |
642 | .global ptl_1 |
650 | .global ptl_1 |
643 | ptl_1: |
651 | ptl_1: |
- | 652 | # Identity mapping for [0; 4G) |
|
644 | .quad ptl_2 + (PTL_WRITABLE | PTL_PRESENT) |
653 | .quad ptl_2_0g + (PTL_WRITABLE | PTL_PRESENT) |
- | 654 | .quad ptl_2_1g + (PTL_WRITABLE | PTL_PRESENT) |
|
- | 655 | .quad ptl_2_2g + (PTL_WRITABLE | PTL_PRESENT) |
|
- | 656 | .quad ptl_2_3g + (PTL_WRITABLE | PTL_PRESENT) |
|
645 | .fill 509,8,0 |
657 | .fill 506, 8, 0 |
- | 658 | # Mapping of [0; 1G) at -2G |
|
646 | .quad ptl_2 + (PTL_WRITABLE | PTL_PRESENT) |
659 | .quad ptl_2_0g + (PTL_WRITABLE | PTL_PRESENT) |
647 | .fill 1,8,0 |
660 | .fill 1, 8, 0 |
648 | 661 | ||
649 | .align 4096 |
662 | .align 4096 |
650 | .global ptl_0 |
663 | .global ptl_0 |
651 | ptl_0: |
664 | ptl_0: |
652 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
665 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
653 | .fill 255,8,0 |
666 | .fill 255,8,0 |
654 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
667 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
655 | .fill 254,8,0 |
668 | .fill 254,8,0 |
656 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
669 | .quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT) |
657 | 670 | ||
- | 671 | .section K_DATA_START, "aw", @progbits |
|
- | 672 | ||
658 | .global bootstrap_gdtr |
673 | .global bootstrap_gdtr |
659 | bootstrap_gdtr: |
674 | bootstrap_gdtr: |
660 | .word gdtselector(GDT_ITEMS) |
675 | .word gdtselector(GDT_ITEMS) |
661 | .long KA2PA(gdt) |
676 | .long KA2PA(gdt) |
662 | 677 | ||
663 | grub_eax: |
678 | grub_eax: |
664 | .long 0 |
679 | .long 0 |
665 | 680 | ||
666 | grub_ebx: |
681 | grub_ebx: |
667 | .long 0 |
682 | .long 0 |
668 | 683 | ||
669 | extended_cpuid_msg: |
684 | extended_cpuid_msg: |
670 | .asciz "Extended CPUID not supported. System halted." |
685 | .asciz "Extended CPUID not supported. System halted." |
671 | long_mode_msg: |
686 | long_mode_msg: |
672 | .asciz "64 bit long mode not supported. System halted." |
687 | .asciz "64 bit long mode not supported. System halted." |
673 | noexecute_msg: |
688 | noexecute_msg: |
674 | .asciz "No-execute pages not supported. System halted." |
689 | .asciz "No-execute pages not supported. System halted." |
675 | fx_msg: |
690 | fx_msg: |
676 | .asciz "FXSAVE/FXRESTORE instructions not supported. System halted." |
691 | .asciz "FXSAVE/FXRESTORE instructions not supported. System halted." |
677 | sse2_msg: |
692 | sse2_msg: |
678 | .asciz "SSE2 instructions not supported. System halted." |
693 | .asciz "SSE2 instructions not supported. System halted." |
679 | 694 |