| 29,11 → 29,8 |
|---|
| #include "main.h" |
| #include "printf.h" |
| #include "asm.h" |
| #include "_components.h" |
| |
| #define KERNEL_START ((void *) &_binary_____________kernel_kernel_bin_start) |
| #define KERNEL_END ((void *) &_binary_____________kernel_kernel_bin_end) |
| #define KERNEL_SIZE ((unsigned long) KERNEL_END - (unsigned long) KERNEL_START) |
| |
| #define HEAP_GAP 1024000 |
| |
| bootinfo_t bootinfo; |
| 76,24 → 73,30 |
|---|
| |
| void bootstrap(void) |
| { |
| printf("\nHelenOS PPC64 Bootloader\n"); |
| printf("\nHelenOS PPC Bootloader\n"); |
| |
| check_align(KERNEL_START, "Kernel image"); |
| check_align(&real_mode, "Bootstrap trampoline"); |
| check_align(&trans, "Translation table"); |
| init_components(); |
| |
| unsigned int i; |
| |
| for (i = 0; i < COMPONENTS; i++) |
| check_align(components[i].start, components[i].name); |
| |
| check_align(&real_mode, "bootstrap trampoline"); |
| check_align(&trans, "translation table"); |
| |
| if (!ofw_memmap(&bootinfo.memmap)) { |
| printf("Error: Unable to get memory map, halting.\n"); |
| printf("Error: unable to get memory map, halting.\n"); |
| halt(); |
| } |
| |
| if (bootinfo.memmap.total == 0) { |
| printf("Error: No memory detected, halting.\n"); |
| printf("Error: no memory detected, halting.\n"); |
| halt(); |
| } |
| |
| if (!ofw_screen(&bootinfo.screen)) { |
| printf("Error: Unable to get screen properties, halting.\n"); |
| printf("Error: unable to get screen properties, halting.\n"); |
| halt(); |
| } |
| |
| 103,26 → 106,49 |
|---|
| void *real_mode_pa = ofw_translate(&real_mode); |
| void *trans_pa = ofw_translate(&trans); |
| void *bootinfo_pa = ofw_translate(&bootinfo); |
| void *fb = (void *) (((unsigned long) bootinfo.screen.addr) & ((unsigned long) ~0 << 17)); |
| |
| printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20); |
| printf(" kernel image at %L (size %d bytes)\n", KERNEL_START, KERNEL_SIZE); |
| printf(" boot info at %L (physical %L)\n", &bootinfo, bootinfo_pa); |
| printf(" bootstrap trampoline at %L (physical %L)\n", &real_mode, real_mode_pa); |
| printf(" translation table at %L (physical %L)\n", &trans, trans_pa); |
| printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa); |
| printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa); |
| printf(" %L: translation table (physical %L)\n", &trans, trans_pa); |
| for (i = 0; i < COMPONENTS; i++) |
| printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size); |
| |
| unsigned long top = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE); |
| unsigned long addr; |
| for (addr = 0; addr < KERNEL_SIZE; addr += PAGE_SIZE) { |
| void *pa = ofw_translate(KERNEL_START + addr); |
| fix_overlap(KERNEL_START + addr, &pa, "Kernel image", &top); |
| trans[addr >> PAGE_WIDTH] = pa; |
| unsigned long top = 0; |
| for (i = 0; i < COMPONENTS; i++) |
| top += ALIGN_UP(components[i].size, PAGE_SIZE); |
| |
| unsigned long pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH; |
| |
| for (i = 0; i < pages; i++) { |
| void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH)); |
| fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top); |
| trans[i] = pa; |
| } |
| |
| fix_overlap(&real_mode, &real_mode_pa, "Bootstrap trampoline", &top); |
| fix_overlap(&trans, &trans_pa, "Translation table", &top); |
| fix_overlap(&bootinfo, &bootinfo_pa, "Boot info", &top); |
| bootinfo.taskmap.count = 0; |
| for (i = 1; i < COMPONENTS; i++) { |
| unsigned long component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH; |
| unsigned long j; |
| |
| for (j = 0; j < component_pages; j++) { |
| void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH)); |
| fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top); |
| trans[pages + j] = pa; |
| if (j == 0) { |
| bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH); |
| bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size; |
| bootinfo.taskmap.count++; |
| } |
| } |
| |
| pages += component_pages; |
| } |
| |
| fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top); |
| fix_overlap(&trans, &trans_pa, "translation table", &top); |
| fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top); |
| |
| printf("\nBooting the kernel...\n"); |
| jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, KERNEL_SIZE, fb, real_mode_pa); |
| jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa); |
| } |