Diff markup
001 001
002 <<
003 002
004 003
005 004
006 005
007 006
008 007
009 008
010 009
011 010
012 011
013 012
014 013
015 014
016 015
017 016
018 017
019 018
>> 019 #include <sos/errno.h>
>> 020
020 021
021 #include <bootstrap/multiboot.h> 022 #include <bootstrap/multiboot.h>
022 #include <hwcore/idt.h> 023 #include <hwcore/idt.h>
023 #include <hwcore/gdt.h> 024 #include <hwcore/gdt.h>
024 #include <hwcore/irq.h> 025 #include <hwcore/irq.h>
025 #include <hwcore/exception.h> 026 #include <hwcore/exception.h>
026 #include <hwcore/i8254.h> 027 #include <hwcore/i8254.h>
027 #include <sos/list.h> 028 #include <sos/list.h>
028 #include <sos/physmem.h> 029 #include <sos/physmem.h>
>> 030 #include <hwcore/paging.h>
>> 031 #include <hwcore/mm_context.h>
>> 032 #include <hwcore/swintr.h>
>> 033 #include <sos/kmem_vmm.h>
>> 034 #include <sos/kmalloc.h>
>> 035 #include <sos/time.h>
>> 036 #include <sos/thread.h>
>> 037 #include <sos/process.h>
>> 038 #include <sos/umem_vmm.h>
029 #include <sos/klibc.h> 039 #include <sos/klibc.h>
030 #include <sos/assert.h> 040 #include <sos/assert.h>
031 #include <drivers/x86_videomem.h> 041 #include <drivers/x86_videomem.h>
032 #include <drivers/bochs.h> 042 #include <drivers/bochs.h>
033 !! 043 #include <sos/calcload.h>
>> 044 #include <sos/umem_vmm.h>
>> 045 #include <sos/binfmt_elf32.h>
>> 046 #include <drivers/zero.h>
>> 047 #include <sos/fs.h>
>> 048 #include <drivers/fs_virtfs.h>
>> 049 #include <drivers/devices.h>
>> 050 #include <drivers/mem.h>
>> 051 #include <drivers/tty.h>
>> 052 #include <drivers/console.h>
>> 053 #include <drivers/serial.h>
>> 054 #include <sos/blkdev.h>
>> 055 #include <sos/fs_pagecache.h>
>> 056 #include <drivers/ide.h>
034 057
035 058
036 059
037 static void display_bits(unsigned char row, un !! 060 void display_bits(unsigned char row, unsigned char col,
038 unsigned char attribu !! 061 unsigned char attribute,
039 sos_ui32_t integer) !! 062 sos_ui32_t integer)
040 { 063 {
041 int i; 064 int i;
042 065
043 for (i = 31 ; i >= 0 ; i--) 066 for (i = 31 ; i >= 0 ; i--)
044 { 067 {
045 068
046 int bit_i = (integer & (1 << i)); 069 int bit_i = (integer & (1 << i));
047 070
048 unsigned char ascii_code = bit_i?219:177 071 unsigned char ascii_code = bit_i?219:177;
049 sos_x86_videomem_putchar(row, col++, 072 sos_x86_videomem_putchar(row, col++,
050 attribute, 073 attribute,
051 ascii_code); 074 ascii_code);
052 } 075 }
053 } 076 }
054 077
055 <<
056 078
057 static void clk_it(int intid) 079 static void clk_it(int intid)
058 { 080 {
059 static sos_ui32_t clock_count = 0; 081 static sos_ui32_t clock_count = 0;
060 082
061 display_bits(0, 48, 083 display_bits(0, 48,
062 SOS_X86_VIDEO_FG_LTGREEN | SOS_ 084 SOS_X86_VIDEO_FG_LTGREEN | SOS_X86_VIDEO_BG_BLUE,
063 clock_count); 085 clock_count);
064 clock_count++; 086 clock_count++;
065 087
>> 088
>> 089 sos_time_do_tick();
>> 090
>> 091
>> 092 sos_sched_do_timer_tick();
066 } 093 }
067 094
068 #define MY_PPAGE_NUM_INT 511 !! 095
069 struct my_ppage !! 096
>> 097
>> 098
>> 099
>> 100
>> 101
>> 102 static void pgflt_ex(int intid, struct sos_cpu_state *ctxt)
070 { 103 {
071 sos_ui32_t before[MY_PPAGE_NUM_INT]; !! 104 static sos_ui32_t demand_paging_count = 0;
072 struct my_ppage *prev, *next; !! 105 struct sos_thread * cur_thr = sos_thread_get_current();
073 sos_ui32_t after[MY_PPAGE_NUM_INT]; !! 106 sos_vaddr_t faulting_vaddr = sos_cpu_context_get_EX_faulting_vaddr(ctxt);
074 }; !! 107 sos_paddr_t ppage_paddr;
075 !! 108
076 static void test_physmem() !! 109 if (sos_cpu_context_is_in_user_mode(ctxt)
077 { !! 110 || (cur_thr->fixup_uaccess.return_vaddr))
078 <<
079 struct my_ppage *ppage_list, *my_ppage; <<
080 sos_count_t num_alloc_ppages = 0, num_free_p <<
081 <<
082 ppage_list = NULL; <<
083 while ((my_ppage = (struct my_ppage*)sos_phy <<
084 != NULL) <<
085 { 111 {
086 int i; !! 112 __label__ unforce_address_space;
087 num_alloc_ppages++; !! 113 sos_bool_t need_to_setup_mmu;
088 !! 114 sos_ui32_t errcode = sos_cpu_context_get_EX_info(ctxt);
089 !! 115
090 sos_x86_videomem_printf(2, 0, !! 116
091 SOS_X86_VIDEO_FG !! 117
092 | SOS_X86_VIDEO_ !! 118 need_to_setup_mmu = (cur_thr->squatted_mm_context
093 "Could allocate !! 119 != sos_process_get_mm_context(cur_thr->process));
094 num_alloc_ppages !! 120 if (need_to_setup_mmu)
095 !! 121 sos_thread_prepare_user_space_access(NULL, 0);
096 !! 122
097 for (i = 0 ; i < MY_PPAGE_NUM_INT ; i++) !! 123 if (SOS_OK ==
098 my_ppage->before[i] = my_ppage->after[ !! 124 sos_umem_vmm_try_resolve_page_fault(faulting_vaddr,
099 !! 125 errcode & (1 << 1),
100 !! 126 TRUE))
101 list_add_tail(ppage_list, my_ppage); !! 127 goto unforce_address_space;
102 } !! 128
103 !! 129
104 !! 130
105 while ((my_ppage = list_pop_head(ppage_list) !! 131 if (! sos_cpu_context_is_in_user_mode(ctxt))
106 { <<
107 <<
108 <<
109 int i; <<
110 for (i = 0 ; i < MY_PPAGE_NUM_INT ; i++) <<
111 { 132 {
112 !! 133 cur_thr->fixup_uaccess.faulted_uaddr = faulting_vaddr;
113 if ((my_ppage->before[i] != (sos_ui !! 134 sos_cpu_context_set_EX_return_address(ctxt,
114 || (my_ppage->after[i] != (sos_ !! 135 cur_thr->fixup_uaccess.return_vaddr);
115 { !! 136 goto unforce_address_space;
116 <<
117 sos_x86_videomem_putstring(20, 0 <<
118 SOS_X <<
119 | S <<
120 "Page <<
121 return; <<
122 } <<
123 } 137 }
124 138
125 !! 139 if (need_to_setup_mmu)
126 if (sos_physmem_unref_physpage((sos_padd !! 140 sos_thread_end_user_space_access();
127 { <<
128 <<
129 sos_x86_videomem_putstring(20, 0, <<
130 SOS_X86_V <<
131 | SOS_X <<
132 "Cannot r <<
133 return; <<
134 } <<
135 141
136 !! 142 sos_bochs_printf("\e[35mTHR %p: Unresolved USER page Fault at instruction 0x%x on access to address 0x%x (info=%x)!\e[m\n",
137 num_free_ppages ++; !! 143 (void*)sos_thread_get_current(),
138 sos_x86_videomem_printf(2, 0, !! 144 sos_cpu_context_get_PC(ctxt),
139 SOS_X86_VIDEO_FG !! 145 (unsigned)faulting_vaddr,
140 | SOS_X86_VIDEO_ !! 146 (unsigned)sos_cpu_context_get_EX_info(ctxt));
141 "Could free %d p !! 147 sos_bochs_printf("Terminating User thread\n");
142 num_free_ppages) !! 148 sos_thread_exit();
>> 149
>> 150 unforce_address_space:
>> 151 if (need_to_setup_mmu)
>> 152 sos_thread_end_user_space_access();
>> 153 return;
>> 154 }
>> 155
>> 156
>> 157 if (! sos_kmem_vmm_is_valid_vaddr(faulting_vaddr))
>> 158 {
>> 159
>> 160
>> 161 sos_display_fatal_error("Unresolved page Fault at instruction 0x%x on access to address 0x%x (info=%x)!",
>> 162 sos_cpu_context_get_PC(ctxt),
>> 163 (unsigned)faulting_vaddr,
>> 164 (unsigned)sos_cpu_context_get_EX_info(ctxt));
>> 165 SOS_ASSERT_FATAL(! "Got page fault (note: demand paging is disabled)");
143 } 166 }
144 167
145 <<
146 sos_x86_videomem_printf(2, 0, <<
147 SOS_X86_VIDEO_FG_LTG <<
148 | SOS_X86_VIDEO_BG_B <<
149 "Could allocate %d b <<
150 num_alloc_ppages << <<
151 num_free_ppages << S <<
152 168
153 SOS_ASSERT_FATAL(num_alloc_ppages == num_fre !! 169
>> 170
>> 171
>> 172
>> 173
>> 174 demand_paging_count ++;
>> 175 display_bits(0, 0,
>> 176 SOS_X86_VIDEO_FG_LTRED | SOS_X86_VIDEO_BG_BLUE,
>> 177 demand_paging_count);
>> 178
>> 179
>> 180 ppage_paddr = sos_physmem_ref_physpage_new(FALSE);
>> 181 if (! ppage_paddr)
>> 182 SOS_ASSERT_FATAL(! "TODO: implement swap. (Out of mem in demand paging because no swap for kernel yet !)");
>> 183 SOS_ASSERT_FATAL(SOS_OK == sos_paging_map(ppage_paddr,
>> 184 SOS_PAGE_ALIGN_INF(faulting_vaddr),
>> 185 FALSE,
>> 186 SOS_VM_MAP_PROT_READ
>> 187 | SOS_VM_MAP_PROT_WRITE
>> 188 | SOS_VM_MAP_ATOMIC));
>> 189 sos_physmem_unref_physpage(ppage_paddr);
>> 190
>> 191
154 } 192 }
155 193
156 194
157 !! 195
158 void sos_main(unsigned long magic, unsigned lo !! 196
>> 197
>> 198
>> 199
>> 200 static void idle_thread(void* unused) __attribute__((noreturn));
>> 201 static void idle_thread(void* unused)
>> 202 {
>> 203 sos_ui32_t idle_twiddle = 0;
>> 204
>> 205 while (1)
>> 206 {
>> 207
>> 208
>> 209 asm("hlt\n");
>> 210
>> 211 idle_twiddle ++;
>> 212 display_bits(0, 0, SOS_X86_VIDEO_FG_GREEN | SOS_X86_VIDEO_BG_BLUE,
>> 213 idle_twiddle);
>> 214
>> 215
>> 216 sos_thread_yield();
>> 217 }
>> 218 }
>> 219
>> 220
>> 221
>> 222
>> 223
>> 224 #define LOAD_DISPLAY_BASELINE 4
>> 225 #define LOAD_DISPLAY_STARTROW 34
>> 226 static void stat_thread(void * unused) __attribute__((noreturn));
>> 227 static void stat_thread(void * unused)
>> 228 {
>> 229 while (1)
>> 230 {
>> 231 sos_ui32_t flags;
>> 232 sos_ui32_t load1, load5, load15;
>> 233 char str1[11], str5[11], str15[11];
>> 234 struct sos_time t;
>> 235 t.sec = 1;
>> 236 t.nanosec = 0;
>> 237
>> 238 sos_thread_sleep(& t);
>> 239
>> 240 sos_disable_IRQs(flags);
>> 241
>> 242
>> 243 sos_load_get_sload(&load1, &load5, &load15);
>> 244 sos_load_to_string(str1, load1);
>> 245 sos_load_to_string(str5, load5);
>> 246 sos_load_to_string(str15, load15);
>> 247 sos_x86_videomem_printf(LOAD_DISPLAY_BASELINE+0, LOAD_DISPLAY_STARTROW,
>> 248 SOS_X86_VIDEO_FG_YELLOW | SOS_X86_VIDEO_BG_BLUE,
>> 249 "Kernel (- Idle): %s %s %s ",
>> 250 str1, str5, str15);
>> 251
>> 252 sos_load_get_uload(&load1, &load5, &load15);
>> 253 sos_load_to_string(str1, load1);
>> 254 sos_load_to_string(str5, load5);
>> 255 sos_load_to_string(str15, load15);
>> 256 sos_x86_videomem_printf(LOAD_DISPLAY_BASELINE+1, LOAD_DISPLAY_STARTROW,
>> 257 SOS_X86_VIDEO_FG_YELLOW | SOS_X86_VIDEO_BG_BLUE,
>> 258 "User: %s %s %s ",
>> 259 str1, str5, str15);
>> 260
>> 261 sos_load_get_uratio(&load1, &load5, &load15);
>> 262 sos_load_to_string(str1, load1);
>> 263 sos_load_to_string(str5, load5);
>> 264 sos_load_to_string(str15, load15);
>> 265 sos_x86_videomem_printf(LOAD_DISPLAY_BASELINE+2, LOAD_DISPLAY_STARTROW,
>> 266 SOS_X86_VIDEO_FG_YELLOW | SOS_X86_VIDEO_BG_BLUE,
>> 267 "User CPU %%: %s %s %s ",
>> 268 str1, str5, str15);
>> 269
>> 270
>> 271 sos_load_get_sratio(&load1, &load5, &load15);
>> 272 sos_load_to_string(str1, load1);
>> 273 sos_load_to_string(str5, load5);
>> 274 sos_load_to_string(str15, load15);
>> 275 sos_x86_videomem_printf(LOAD_DISPLAY_BASELINE+3, LOAD_DISPLAY_STARTROW,
>> 276 SOS_X86_VIDEO_FG_YELLOW | SOS_X86_VIDEO_BG_BLUE,
>> 277 "Kernel CPU %% (+ Idle): %s %s %s ",
>> 278 str1, str5, str15);
>> 279 sos_restore_IRQs(flags);
>> 280 }
>> 281 }
>> 282
>> 283
>> 284
>> 285
>> 286
>> 287 static sos_ret_t
>> 288 start_init(struct sos_fs_manager_instance * rootfs)
>> 289 {
>> 290 sos_ret_t retval;
>> 291 struct sos_umem_vmm_as *as_init;
>> 292 struct sos_process *proc_init;
>> 293 struct sos_thread *new_thr;
>> 294 sos_uaddr_t ustack, start_uaddr;
>> 295 struct sos_fs_opened_file * init_root, * init_cwd, * unused_of;
>> 296
>> 297
>> 298 proc_init = sos_process_create("init", FALSE);
>> 299 if (! proc_init)
>> 300 return -SOS_ENOMEM;
>> 301 as_init = sos_process_get_address_space(proc_init);
>> 302
>> 303
>> 304
>> 305
>> 306
>> 307
>> 308
>> 309 retval = sos_fs_new_opened_file(proc_init, rootfs->root,
>> 310 SOS_FS_OPEN_READ | SOS_FS_OPEN_WRITE,
>> 311 & init_root);
>> 312 if (SOS_OK != retval)
>> 313 {
>> 314 sos_process_unref(proc_init);
>> 315 return -SOS_ENOENT;
>> 316 }
>> 317
>> 318
>> 319
>> 320 retval = sos_fs_duplicate_opened_file(init_root, proc_init,
>> 321 & init_cwd);
>> 322 if (SOS_OK != retval)
>> 323 {
>> 324 sos_fs_close(init_root);
>> 325 sos_process_unref(proc_init);
>> 326 return -SOS_ENOENT;
>> 327 }
>> 328
>> 329
>> 330 if ( ( SOS_OK != sos_process_chroot(proc_init, init_root, & unused_of) )
>> 331 || ( SOS_OK != sos_process_chdir(proc_init, init_cwd, & unused_of) ) )
>> 332 {
>> 333 sos_fs_close(init_root);
>> 334 sos_fs_close(init_cwd);
>> 335 sos_process_chroot(proc_init, NULL, & unused_of);
>> 336 sos_process_chdir(proc_init, NULL, & unused_of);
>> 337 sos_process_unref(proc_init);
>> 338 return -SOS_ENOENT;
>> 339 }
>> 340
>> 341
>> 342
>> 343
>> 344 start_uaddr = sos_binfmt_elf32_map(as_init, "init");
>> 345 if (0 == start_uaddr)
>> 346 {
>> 347 sos_process_unref(proc_init);
>> 348 return -SOS_ENOENT;
>> 349 }
>> 350
>> 351
>> 352 ustack = (SOS_PAGING_TOP_USER_ADDRESS - SOS_DEFAULT_USER_STACK_SIZE) + 1;
>> 353 retval = sos_dev_zero_map(as_init, &ustack, SOS_DEFAULT_USER_STACK_SIZE,
>> 354 SOS_VM_MAP_PROT_READ | SOS_VM_MAP_PROT_WRITE,
>> 355 0);
>> 356 if (SOS_OK != retval)
>> 357 {
>> 358 sos_process_unref(proc_init);
>> 359 return -SOS_ENOMEM;
>> 360 }
>> 361
>> 362
>> 363 new_thr = sos_create_user_thread(NULL,
>> 364 proc_init,
>> 365 start_uaddr,
>> 366 0, 0,
>> 367 ustack + SOS_DEFAULT_USER_STACK_SIZE - 4,
>> 368 SOS_SCHED_PRIO_TS_LOWEST);
>> 369 if (! new_thr)
>> 370 {
>> 371 sos_process_unref(proc_init);
>> 372 return -SOS_ENOMEM;
>> 373 }
>> 374
>> 375 sos_process_unref(proc_init);
>> 376 return SOS_OK;
>> 377 }
>> 378
>> 379
>> 380
>> 381
>> 382
>> 383
>> 384 void sos_main(unsigned long magic, unsigned long arg)
>> 385 __attribute__((noreturn));
>> 386 void sos_main(unsigned long magic, unsigned long arg)
159 { 387 {
160 unsigned i; <<
161 sos_paddr_t sos_kernel_core_base_paddr, sos_ 388 sos_paddr_t sos_kernel_core_base_paddr, sos_kernel_core_top_paddr;
>> 389 struct sos_time tick_resolution;
>> 390 struct sos_fs_manager_instance * rootfs;
162 391
163 !! 392
164 !! 393 unsigned long int upper_mem = 0;
165 <<
166 multiboot_info_t *mbi; <<
167 mbi = (multiboot_info_t *) addr; <<
168 394
169 395
170 sos_bochs_setup(); !! 396 sos_bochs_subsystem_setup();
171 397
172 sos_x86_videomem_setup(); 398 sos_x86_videomem_setup();
173 sos_x86_videomem_cls(SOS_X86_VIDEO_BG_BLUE); 399 sos_x86_videomem_cls(SOS_X86_VIDEO_BG_BLUE);
174 400
175 401
176 if (magic == MULTIBOOT_BOOTLOADER_MAGIC) 402 if (magic == MULTIBOOT_BOOTLOADER_MAGIC)
177 !! 403 {
178 sos_x86_videomem_printf(1, 0, !! 404
179 SOS_X86_VIDEO_FG_Y !! 405
180 "Welcome From GRUB !! 406
181 "SOS", ',', !! 407 multiboot_info_t *mbi = (multiboot_info_t *) arg;
182 (unsigned)(mbi->me !! 408
183 (unsigned)mbi->mem !! 409
>> 410
>> 411
>> 412
>> 413 upper_mem = mbi->mem_upper;
>> 414 sos_x86_videomem_printf(1, 0,
>> 415 SOS_X86_VIDEO_FG_YELLOW | SOS_X86_VIDEO_BG_BLUE,
>> 416 "Welcome From GRUB to %s%c RAM is %dMB (upper mem = 0x%x kB)",
>> 417 "SOS article 9.5", ',',
>> 418 (unsigned)(upper_mem >> 10) + 1,
>> 419 (unsigned)upper_mem);
>> 420 }
>> 421 else if (magic == 0x42244224)
>> 422 {
>> 423
>> 424 upper_mem = arg;
>> 425 sos_x86_videomem_printf(1, 0,
>> 426 SOS_X86_VIDEO_FG_YELLOW | SOS_X86_VIDEO_BG_BLUE,
>> 427 "Welcome to %s%c RAM is %dMB (upper mem = 0x%x kB)",
>> 428 "SOS article 9.5", ',',
>> 429 (unsigned)(upper_mem >> 10) + 1,
>> 430 (unsigned)upper_mem);
>> 431 }
184 else 432 else
185 !! 433
186 sos_x86_videomem_printf(1, 0, 434 sos_x86_videomem_printf(1, 0,
187 SOS_X86_VIDEO_FG_Y 435 SOS_X86_VIDEO_FG_YELLOW | SOS_X86_VIDEO_BG_BLUE,
188 "Welcome to SOS"); !! 436 "Welcome to SOS article 9.5");
189 437
190 sos_bochs_putstring("Message in a bochs\n"); !! 438 sos_bochs_putstring("Message in a bochs: This is SOS article 9.5.\n");
191 439
192 440
193 sos_gdt_setup(); !! 441 sos_gdt_subsystem_setup();
194 sos_idt_setup(); !! 442 sos_idt_subsystem_setup();
195 443
196 444
197 sos_exceptions_setup(); !! 445 sos_exception_subsystem_setup();
198 sos_irq_setup(); !! 446 sos_irq_subsystem_setup();
199 447
200 448
201 sos_i8254_set_frequency(100); 449 sos_i8254_set_frequency(100);
202 450
>> 451
>> 452
>> 453 tick_resolution = (struct sos_time) { .sec=0, .nanosec=10000000UL };
>> 454 sos_time_subsysem_setup(& tick_resolution);
203 455
204 !! 456
205 if (magic != MULTIBOOT_BOOTLOADER_MAGIC) !! 457 if (upper_mem == 0)
206 { 458 {
207 sos_x86_videomem_putstring(20, 0, 459 sos_x86_videomem_putstring(20, 0,
208 SOS_X86_VIDEO 460 SOS_X86_VIDEO_FG_LTRED
209 | SOS_X86_V 461 | SOS_X86_VIDEO_BG_BLUE
210 | SOS_X86_V 462 | SOS_X86_VIDEO_FG_BLINKING,
211 "I'm not load !! 463 "I don't know RAM size ! Load me with Grub...");
212 464
213 for (;;) 465 for (;;)
214 continue; 466 continue;
215 } 467 }
216 468
>> 469
>> 470
>> 471
>> 472
217 473
218 sos_irq_set_routine(SOS_IRQ_TIMER, 474 sos_irq_set_routine(SOS_IRQ_TIMER,
219 clk_it); !! 475 clk_it);
>> 476
>> 477
>> 478
>> 479
>> 480
>> 481 SOS_ASSERT_FATAL(SOS_OK
>> 482 == sos_physmem_subsystem_setup((upper_mem<<10) + (1<<20),
>> 483 &sos_kernel_core_base_paddr,
>> 484 &sos_kernel_core_top_paddr));
>> 485
>> 486
>> 487
>> 488
>> 489
>> 490
>> 491
>> 492 SOS_ASSERT_FATAL(SOS_OK ==
>> 493 sos_paging_subsystem_setup(sos_kernel_core_base_paddr,
>> 494 sos_kernel_core_top_paddr));
>> 495
>> 496
>> 497 sos_exception_set_routine(SOS_EXCEPT_PAGE_FAULT,
>> 498 pgflt_ex);
>> 499
>> 500
>> 501
>> 502
>> 503
>> 504 if (sos_kmem_vmm_subsystem_setup(sos_kernel_core_base_paddr,
>> 505 sos_kernel_core_top_paddr,
>> 506 bootstrap_stack_bottom,
>> 507 bootstrap_stack_bottom
>> 508 + bootstrap_stack_size))
>> 509 sos_bochs_printf("Could not setup the Kernel virtual space allocator\n");
>> 510
>> 511 if (sos_kmalloc_subsystem_setup())
>> 512 sos_bochs_printf("Could not setup the Kmalloc subsystem\n");
>> 513
>> 514
>> 515
>> 516
>> 517 sos_mm_context_subsystem_setup();
>> 518
>> 519
>> 520
>> 521
>> 522 sos_cpu_context_subsystem_setup();
>> 523
>> 524
>> 525
>> 526
>> 527 sos_swintr_subsystem_setup();
>> 528
>> 529
>> 530
>> 531
>> 532
>> 533
>> 534
>> 535 sos_thread_subsystem_setup(bootstrap_stack_bottom,
>> 536 bootstrap_stack_size);
>> 537
>> 538
>> 539 sos_sched_subsystem_setup();
>> 540
>> 541
>> 542 SOS_ASSERT_FATAL(sos_create_kernel_thread("idle", idle_thread, NULL,
>> 543 SOS_SCHED_PRIO_TS_LOWEST) != NULL);
>> 544
>> 545
>> 546 sos_load_subsystem_setup();
>> 547
>> 548
>> 549 SOS_ASSERT_FATAL(sos_create_kernel_thread("stat_thread", stat_thread,
>> 550 NULL,
>> 551 SOS_SCHED_PRIO_TS_LOWEST) != NULL);
>> 552
>> 553
>> 554
>> 555
>> 556
>> 557 sos_umem_vmm_subsystem_setup();
>> 558 sos_dev_zero_subsystem_setup();
>> 559
>> 560
>> 561 sos_fs_pagecache_subsystem_setup();
>> 562 sos_blockdev_subsystem_setup();
>> 563 sos_dev_mem_chardev_setup();
>> 564
>> 565
>> 566
>> 567
>> 568 sos_process_subsystem_setup();
>> 569
>> 570
220 571
221 !! 572
222 asm volatile ("sti\n"); 573 asm volatile ("sti\n");
223 <<
224 <<
225 <<
226 sos_physmem_setup((mbi->mem_upper<<10) + (1< <<
227 & sos_kernel_core_base_pad <<
228 & sos_kernel_core_top_padd <<
229 test_physmem(); <<
230 <<
231 <<
232 for (;;) <<
233 continue; <<
234 574
235 return; !! 575
>> 576 SOS_ASSERT_FATAL(SOS_OK == sos_fs_virtfs_subsystem_setup());
>> 577 SOS_ASSERT_FATAL(SOS_OK == sos_fs_subsystem_setup(NULL,
>> 578 "virtfs",
>> 579 NULL,
>> 580 & rootfs));
>> 581
>> 582
>> 583 tty_subsystem_setup();
>> 584 sos_ttyS0_subsystem_setup();
>> 585 sos_console_subsystem_setup();
>> 586
>> 587
>> 588 sos_ide_subsystem_setup();
>> 589
>> 590
>> 591
>> 592
>> 593
>> 594 start_init(rootfs);
>> 595
>> 596
>> 597
>> 598
>> 599
>> 600
>> 601
>> 602
>> 603
>> 604
>> 605
>> 606
>> 607 sos_bochs_printf("Bye from primary thread !\n");
>> 608 sos_thread_exit();
>> 609 SOS_FATAL_ERROR("No trespassing !");
236 } 610 }