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Rev 1058 Rev 1068
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        halt();
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        halt();
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    }
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    }
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}
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}
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static void check_overlap(const void *addr, const char *desc)
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{
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    if ((unsigned int) addr < KERNEL_SIZE) {
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        printf("Error: %s overlaps kernel physical area\n", desc);
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        halt();
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    }
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}
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void bootstrap(void)
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void bootstrap(void)
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{
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{
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    printf("\nHelenOS PPC Bootloader\n");
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    printf("\nHelenOS PPC Bootloader\n");
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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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        printf("Error: Unable to get memory map\n");
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        halt();
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    }
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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 *memmap_pa = ofw_translate(&memmap);
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    check_overlap(real_mode_pa, "Bootstrap trampoline");
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    check_overlap(trans_pa, "Translation table");
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    check_overlap(memmap_pa, "Memory map");
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    printf("Memory statistics\n");
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    printf("Memory statistics (total %d MB)\n", 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(" memory map           at %L (physical %L)\n", &memmap, memmap_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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    if (!ofw_memmap(&memmap)) {
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        printf("Unable to get memory map\n");
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        halt();
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    }
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    printf("Total memory %d MB\n", memmap.total >> 20);
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    unsigned int addr;
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    unsigned int addr;
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    unsigned int pages;
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    for (addr = 0, pages = 0; addr < KERNEL_SIZE; addr += PAGE_SIZE, pages++) {
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    for (addr = 0; addr < KERNEL_SIZE; addr += PAGE_SIZE) {
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        void *pa = ofw_translate(KERNEL_START + addr);
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        void *pa = ofw_translate(KERNEL_START + addr);
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        if ((unsigned int) pa < KERNEL_SIZE) {
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            printf("Error: Kernel image overlaps kernel physical area\n");
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        check_overlap(pa, "Kernel image");
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            halt();
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        }
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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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    printf("Booting the kernel...\n");
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    printf("Booting the kernel...\n");
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    jump_to_kernel(memmap_pa, trans_pa, pages, real_mode_pa);
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    jump_to_kernel(memmap_pa, trans_pa, KERNEL_SIZE, real_mode_pa);
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}
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}