74 lines
2.8 KiB
C
74 lines
2.8 KiB
C
/* vim: tabstop=4 shiftwidth=4 noexpandtab
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*
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* Multiboot (GRUB) handler
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*/
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#include <system.h>
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#include <logging.h>
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#include <multiboot.h>
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char * ramdisk = NULL;
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struct multiboot * mboot_ptr = NULL;
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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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debug_print(INFO, "MULTIBOOT header at 0x%x:", (uintptr_t)mboot_ptr);
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debug_print(INFO, "Flags : 0x%x", mboot_ptr->flags);
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debug_print(INFO, "Mem Lo: 0x%x", mboot_ptr->mem_lower);
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debug_print(INFO, "Mem Hi: 0x%x", mboot_ptr->mem_upper);
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debug_print(INFO, "Boot d: 0x%x", mboot_ptr->boot_device);
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debug_print(INFO, "cmdlin: 0x%x", mboot_ptr->cmdline);
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debug_print(INFO, "Mods : 0x%x", mboot_ptr->mods_count);
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debug_print(INFO, "Addr : 0x%x", mboot_ptr->mods_addr);
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debug_print(INFO, "ELF n : 0x%x", mboot_ptr->num);
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debug_print(INFO, "ELF s : 0x%x", mboot_ptr->size);
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debug_print(INFO, "ELF a : 0x%x", mboot_ptr->addr);
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debug_print(INFO, "ELF h : 0x%x", mboot_ptr->shndx);
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debug_print(INFO, "MMap : 0x%x", mboot_ptr->mmap_length);
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debug_print(INFO, "Addr : 0x%x", mboot_ptr->mmap_addr);
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debug_print(INFO, "Drives: 0x%x", mboot_ptr->drives_length);
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debug_print(INFO, "Addr : 0x%x", mboot_ptr->drives_addr);
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debug_print(INFO, "Config: 0x%x", mboot_ptr->config_table);
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debug_print(INFO, "Loader: 0x%x", mboot_ptr->boot_loader_name);
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debug_print(INFO, "APM : 0x%x", mboot_ptr->apm_table);
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debug_print(INFO, "VBE Co: 0x%x", mboot_ptr->vbe_control_info);
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debug_print(INFO, "VBE Mo: 0x%x", mboot_ptr->vbe_mode_info);
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debug_print(INFO, "VBE In: 0x%x", mboot_ptr->vbe_mode);
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debug_print(INFO, "VBE se: 0x%x", mboot_ptr->vbe_interface_seg);
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debug_print(INFO, "VBE of: 0x%x", mboot_ptr->vbe_interface_off);
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debug_print(INFO, "VBE le: 0x%x", mboot_ptr->vbe_interface_len);
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if (mboot_ptr->flags & (1 << 2)) {
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debug_print(INFO, "Started with: %s", (char *)mboot_ptr->cmdline);
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}
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if (mboot_ptr->flags & (1 << 9)) {
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debug_print(INFO, "Booted from: %s", (char *)mboot_ptr->boot_loader_name);
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}
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if (mboot_ptr->flags & (1 << 0)) {
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debug_print(INFO, "%dkB lower memory", mboot_ptr->mem_lower);
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int mem_mb = mboot_ptr->mem_upper / 1024;
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debug_print(INFO, "%dkB higher memory (%dMB)", mboot_ptr->mem_upper, mem_mb);
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}
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if (mboot_ptr->flags & (1 << 3)) {
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debug_print(INFO, "Found %d module(s).", 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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debug_print(INFO, "Module %d is at 0x%x:0x%x", 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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