void __init x86_64_start_kernel(char * real_mode_data) { char *s; clear_bss(); pda_init(0); copy_bootdata(real_mode_data); #ifdef CONFIG_SMP cpu_set(0, cpu_online_map); #endif /* default console: */ if (!strstr(saved_command_line, "console=")) strcat(saved_command_line, " console=tty0"); s = strstr(saved_command_line, "earlyprintk="); if (s != NULL) setup_early_printk(s); #ifdef CONFIG_DISCONTIGMEM s = strstr(saved_command_line, "numa="); if (s != NULL) numa_setup(s+5); #endif #ifdef CONFIG_X86_IO_APIC if (strstr(saved_command_line, "disableapic")) disable_apic = 1; #endif /* You need early console to see that */ if (__pa_symbol(&_end) >= KERNEL_TEXT_SIZE) panic("Kernel too big for kernel mapping\n"); setup_boot_cpu_data(); start_kernel(); }
void __init x86_64_start_kernel(char * real_mode_data) { int i; /* clear bss before set_intr_gate with early_idt_handler */ clear_bss(); /* Make NULL pointers segfault */ zap_identity_mappings(); for (i = 0; i < IDT_ENTRIES; i++) set_intr_gate(i, early_idt_handler); load_idt((const struct desc_ptr *)&idt_descr); early_printk("Kernel alive\n"); for (i = 0; i < NR_CPUS; i++) cpu_pda(i) = &boot_cpu_pda[i]; pda_init(0); copy_bootdata(__va(real_mode_data)); #ifdef CONFIG_SMP cpu_set(0, cpu_online_map); #endif start_kernel(); }
void __init x86_64_start_kernel(char * real_mode_data) { char *s; clear_bss(); pda_init(0); copy_bootdata(real_mode_data); /* default console: */ if (!strstr(saved_command_line, "console=")) strcat(saved_command_line, " console=tty0"); s = strstr(saved_command_line, "earlyprintk="); if (s != NULL) setup_early_printk(s+12); #ifdef CONFIG_DISCONTIGMEM s = strstr(saved_command_line, "numa="); if (s != NULL) numa_setup(s+5); #endif #ifdef CONFIG_X86_IO_APIC if (strstr(saved_command_line, "disableapic")) disable_apic = 1; #endif setup_boot_cpu_data(); start_kernel(); }
void x86_64_start_kernel(char * real_mode_data) { extern void kinit(); clear_bss(); /* must be the first thing in C and must not depend on .bss to be zero */ early_printk("booting amd64 k42...\n"); copy_bootdata(real_mode_data); setup_boot_cpu_data(); pda_init(0); kinit(); }
void __init x86_64_start_kernel(char * real_mode_data) { char *s; clear_bss(); /* must be the first thing in C and must not depend on .bss to be zero */ pda_init(0); copy_bootdata(real_mode_data); s = strstr(saved_command_line, "earlyprintk="); if (s != NULL) setup_early_printk(s+12); #ifdef CONFIG_DISCONTIGMEM extern int numa_setup(char *); s = strstr(saved_command_line, "numa="); if (s != NULL) numa_setup(s+5); #endif early_printk("booting x86_64 kernel... "); setup_boot_cpu_data(); start_kernel(); }
void __init x86_64_init_pda(void) { _cpu_pda = __cpu_pda; cpu_pda(0) = &_boot_cpu_pda; pda_init(0); }
void __init x86_64_start_kernel(char * real_mode_data) { int i; /* * Build-time sanity checks on the kernel image and module * area mappings. (these are purely build-time and produce no code) */ BUILD_BUG_ON(MODULES_VADDR < KERNEL_IMAGE_START); BUILD_BUG_ON(MODULES_VADDR-KERNEL_IMAGE_START < KERNEL_IMAGE_SIZE); BUILD_BUG_ON(MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE); BUILD_BUG_ON((KERNEL_IMAGE_START & ~PMD_MASK) != 0); BUILD_BUG_ON((MODULES_VADDR & ~PMD_MASK) != 0); BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL)); BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) == (__START_KERNEL & PGDIR_MASK))); /* clear bss before set_intr_gate with early_idt_handler */ clear_bss(); /* Make NULL pointers segfault */ zap_identity_mappings(); /* Cleanup the over mapped high alias */ cleanup_highmap(); for (i = 0; i < NUM_EXCEPTION_VECTORS; i++) { #ifdef CONFIG_EARLY_PRINTK set_intr_gate(i, &early_idt_handlers[i]); #else set_intr_gate(i, early_idt_handler); #endif } load_idt((const struct desc_ptr *)&idt_descr); early_printk("Kernel alive\n"); for (i = 0; i < NR_CPUS; i++) cpu_pda(i) = &boot_cpu_pda[i]; pda_init(0); copy_bootdata(__va(real_mode_data)); reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS"); #ifdef CONFIG_BLK_DEV_INITRD /* Reserve INITRD */ if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) { unsigned long ramdisk_image = boot_params.hdr.ramdisk_image; unsigned long ramdisk_size = boot_params.hdr.ramdisk_size; unsigned long ramdisk_end = ramdisk_image + ramdisk_size; reserve_early(ramdisk_image, ramdisk_end, "RAMDISK"); } #endif reserve_ebda_region(); reserve_setup_data(); /* * At this point everything still needed from the boot loader * or BIOS or kernel text should be early reserved or marked not * RAM in e820. All other memory is free game. */ start_kernel(); }