| 30,27 → 30,42 |
|---|
| #include "printf.h" |
| #include "msim.h" |
| #include "asm.h" |
| #include "_components.h" |
| |
| #define KERNEL_VIRTUAL_ADDRESS 0x80100000 |
| #define KERNEL_START &_binary_____________kernel_kernel_bin_start |
| #define KERNEL_END &_binary_____________kernel_kernel_bin_end |
| #define KERNEL_SIZE ((unsigned int) KERNEL_END - (unsigned int) KERNEL_START) |
| |
| void bootstrap(void) |
| { |
| printf("HelenOS MIPS Bootloader\n"); |
| printf("loaded at %L\n", &start); |
| printf("kernel memory at %L (size %d bytes)\n", KERNEL_VIRTUAL_ADDRESS, KERNEL_SIZE); |
| |
| // TODO: implement memcpy |
| int i; |
| for (i = 0; i < KERNEL_SIZE; i++) { |
| if (i % 4096 == 0) |
| printf("."); |
| ((char *) KERNEL_VIRTUAL_ADDRESS)[i] = ((char *) KERNEL_START)[i]; |
| component_t components[COMPONENTS]; |
| bootinfo_t bootinfo; |
| init_components(components); |
| |
| printf("\nMemory statistics\n"); |
| printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS); |
| printf(" %L: boot info structure\n", &bootinfo); |
| |
| unsigned int i; |
| for (i = 0; i < COMPONENTS; i++) |
| printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size); |
| |
| printf("\nCopying components\n"); |
| unsigned int top = 0; |
| bootinfo.cnt = 0; |
| for (i = 0; i < COMPONENTS; i++) { |
| printf(" %s...", components[i].name); |
| top = ALIGN_UP(top, PAGE_SIZE); |
| memcpy(((void *) KERNEL_VIRTUAL_ADDRESS) + top, components[i].start, components[i].size); |
| if (i > 0) { |
| bootinfo.tasks[bootinfo.cnt].addr = ((void *) KERNEL_VIRTUAL_ADDRESS) + top; |
| bootinfo.tasks[bootinfo.cnt].size = components[i].size; |
| bootinfo.cnt++; |
| } |
| top += components[i].size; |
| printf("done.\n"); |
| } |
| |
| printf("\nBooting the kernel...\n"); |
| |
| jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS); |
| jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo, sizeof(bootinfo)); |
| } |