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Line 34... Line 34...
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#define KERNEL_END ((void *) &_binary_____________kernel_kernel_bin_end)
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#define KERNEL_END ((void *) &_binary_____________kernel_kernel_bin_end)
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#define KERNEL_SIZE ((unsigned int) KERNEL_END - (unsigned int) KERNEL_START)
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#define KERNEL_SIZE ((unsigned int) KERNEL_END - (unsigned int) KERNEL_START)
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#define HEAP_GAP 1024000
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#define HEAP_GAP 1024000
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typedef struct {
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memmap_t memmap;
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    memmap_t memmap;
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    screen_t screen;
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} bootinfo_t;
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bootinfo_t bootinfo;
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static void check_align(const void *addr, const char *desc)
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static void check_align(const void *addr, const char *desc)
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{
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{
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    if ((unsigned int) addr % PAGE_SIZE != 0) {
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    if ((unsigned int) addr % PAGE_SIZE != 0) {
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    check_align(KERNEL_START, "Kernel image");
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    check_align(KERNEL_START, "Kernel image");
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    check_align(&real_mode, "Bootstrap trampoline");
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    check_align(&real_mode, "Bootstrap trampoline");
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    check_align(&trans, "Translation table");
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    check_align(&trans, "Translation table");
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    if (!ofw_memmap(&memmap)) {
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    if (!ofw_memmap(&bootinfo.memmap)) {
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        printf("Error: Unable to get memory map\n");
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        printf("Error: Unable to get memory map\n");
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        halt();
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        halt();
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    }
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    }
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    if (!ofw_screen(&bootinfo.screen)) {
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        printf("Error: Unable to get screen properties\n");
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        halt();
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    }
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    printf("\nDevice statistics\n");
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    printf(" screen at %L, resolution %dx%d, %d bpp (scanline %d bytes)\n", bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.bpp, bootinfo.screen.scanline);
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    void *real_mode_pa = ofw_translate(&real_mode);
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    void *real_mode_pa = ofw_translate(&real_mode);
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    void *trans_pa = ofw_translate(&trans);
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    void *trans_pa = ofw_translate(&trans);
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    void *memmap_pa = ofw_translate(&memmap);
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    void *bootinfo_pa = ofw_translate(&bootinfo);
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    printf("Memory statistics (total %d MB)\n", memmap.total >> 20);
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    printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
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    printf(" kernel image         at %L (size %d bytes)\n", KERNEL_START, KERNEL_SIZE);
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    printf(" kernel image         at %L (size %d bytes)\n", KERNEL_START, KERNEL_SIZE);
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    printf(" memory map           at %L (physical %L)\n", &memmap, memmap_pa);
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    printf(" boot info            at %L (physical %L)\n", &bootinfo, bootinfo_pa);
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    printf(" bootstrap trampoline at %L (physical %L)\n", &real_mode, real_mode_pa);
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    printf(" bootstrap trampoline at %L (physical %L)\n", &real_mode, real_mode_pa);
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    printf(" translation table    at %L (physical %L)\n", &trans, trans_pa);
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    printf(" translation table    at %L (physical %L)\n", &trans, trans_pa);
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    unsigned int top = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE);
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    unsigned int top = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE);
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    unsigned int addr;
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    unsigned int addr;
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        trans[addr >> PAGE_WIDTH] = pa;
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        trans[addr >> PAGE_WIDTH] = pa;
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    }
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    }
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    fix_overlap(&real_mode, &real_mode_pa, "Bootstrap trampoline", &top);
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    fix_overlap(&real_mode, &real_mode_pa, "Bootstrap trampoline", &top);
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    fix_overlap(&trans, &trans_pa, "Translation table", &top);
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    fix_overlap(&trans, &trans_pa, "Translation table", &top);
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    fix_overlap(&memmap, &memmap_pa, "Memory map", &top);
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    fix_overlap(&bootinfo, &bootinfo_pa, "Boot info", &top);
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    printf("Booting the kernel...\n");
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    printf("\nBooting the kernel...\n");
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    jump_to_kernel(memmap_pa, trans_pa, KERNEL_SIZE, real_mode_pa);
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    jump_to_kernel(bootinfo_pa, trans_pa, KERNEL_SIZE, real_mode_pa);
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}
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}