67 lines
2.4 KiB
C
67 lines
2.4 KiB
C
#include <system.h>
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#include <multiboot.h>
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struct multiboot *
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copy_multiboot(
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struct multiboot *mboot_ptr
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) {
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struct multiboot *new_header = (struct multiboot *)kmalloc(sizeof(struct multiboot));
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memcpy(new_header, mboot_ptr, sizeof(struct multiboot));
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return new_header;
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}
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void
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dump_multiboot(
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struct multiboot *mboot_ptr
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) {
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kprintf("MULTIBOOT header at 0x%x:\n", (uintptr_t)mboot_ptr);
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kprintf("Flags : 0x%x ", mboot_ptr->flags);
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kprintf("Mem Lo: 0x%x ", mboot_ptr->mem_lower);
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kprintf("Mem Hi: 0x%x ", mboot_ptr->mem_upper);
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kprintf("Boot d: 0x%x\n", mboot_ptr->boot_device);
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kprintf("cmdlin: 0x%x ", mboot_ptr->cmdline);
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kprintf("Mods : 0x%x ", mboot_ptr->mods_count);
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kprintf("Addr : 0x%x ", mboot_ptr->mods_addr);
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kprintf("Syms : 0x%x\n", mboot_ptr->num);
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kprintf("Syms : 0x%x ", mboot_ptr->size);
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kprintf("Syms : 0x%x ", mboot_ptr->addr);
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kprintf("Syms : 0x%x ", mboot_ptr->shndx);
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kprintf("MMap : 0x%x\n", mboot_ptr->mmap_length);
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kprintf("Addr : 0x%x ", mboot_ptr->mmap_addr);
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kprintf("Drives: 0x%x ", mboot_ptr->drives_length);
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kprintf("Addr : 0x%x ", mboot_ptr->drives_addr);
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kprintf("Config: 0x%x\n", mboot_ptr->config_table);
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kprintf("Loader: 0x%x ", mboot_ptr->boot_loader_name);
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kprintf("APM : 0x%x ", mboot_ptr->apm_table);
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kprintf("VBE Co: 0x%x ", mboot_ptr->vbe_control_info);
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kprintf("VBE Mo: 0x%x\n", mboot_ptr->vbe_mode_info);
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kprintf("VBE In: 0x%x ", mboot_ptr->vbe_mode);
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kprintf("VBE se: 0x%x ", mboot_ptr->vbe_interface_seg);
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kprintf("VBE of: 0x%x ", mboot_ptr->vbe_interface_off);
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kprintf("VBE le: 0x%x\n", mboot_ptr->vbe_interface_len);
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if (mboot_ptr->flags & (1 << 2)) {
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kprintf("Started with: %s\n", (char *)mboot_ptr->cmdline);
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}
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if (mboot_ptr->flags & (1 << 9)) {
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kprintf("Booted from: %s\n", (char *)mboot_ptr->boot_loader_name);
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}
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if (mboot_ptr->flags & (1 << 0)) {
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kprintf("%dkB lower memory\n", mboot_ptr->mem_lower);
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kprintf("%dkB higher memory ", mboot_ptr->mem_upper);
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int mem_mb = mboot_ptr->mem_upper / 1024;
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kprintf("(%dMB)\n", mem_mb);
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}
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if (mboot_ptr->flags & (1 << 3)) {
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kprintf("Found %d module(s).\n", mboot_ptr->mods_count);
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if (mboot_ptr->mods_count > 0) {
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uint32_t i;
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for (i = 0; i < mboot_ptr->mods_count; ++i ) {
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uint32_t module_start = *((uint32_t*)mboot_ptr->mods_addr + 8 * i);
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uint32_t module_end = *(uint32_t*)(mboot_ptr->mods_addr + 8 * i + 4);
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kprintf("Module %d is at 0x%x:0x%x\n", i+1, module_start, module_end);
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}
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}
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}
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}
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