kern

annotate src/boot/mboot.h @ 83:4ef83db5f4cd

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author John Tsiombikas <nuclear@member.fsf.org>
date Tue, 06 Dec 2011 15:53:57 +0200
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nuclear@17 1 #ifndef MBOOT_H_
nuclear@17 2 #define MBOOT_H_
nuclear@17 3
nuclear@17 4 #include <inttypes.h>
nuclear@17 5
nuclear@17 6 #define MB_MEM (1 << 0)
nuclear@17 7 #define MB_BOOTDEV (1 << 1)
nuclear@17 8 #define MB_CMDLINE (1 << 2)
nuclear@17 9 #define MB_MODULES (1 << 3)
nuclear@17 10 #define MB_AOUT_SYM (1 << 4)
nuclear@17 11 #define MB_ELF_SHDR (1 << 5)
nuclear@17 12 #define MB_MMAP (1 << 6)
nuclear@17 13 #define MB_DRIVES (1 << 7)
nuclear@17 14 #define MB_CFGTAB (1 << 8)
nuclear@17 15 #define MB_LDRNAME (1 << 9)
nuclear@17 16 #define MB_APM (1 << 10)
nuclear@17 17 #define MB_GFX (1 << 11)
nuclear@17 18
nuclear@17 19 #define MB_MEM_VALID 1
nuclear@17 20 #define MB_DRIVE_CHS 0
nuclear@17 21 #define MB_DRIVE_LBA 1
nuclear@17 22
nuclear@17 23 struct mboot_module {
nuclear@17 24 uint32_t start_addr, end_addr;
nuclear@17 25 char *str;
nuclear@17 26 uint32_t reserved;
nuclear@17 27 };
nuclear@17 28
nuclear@17 29 struct mboot_elf_shdr_table {
nuclear@17 30 uint32_t num;
nuclear@17 31 uint32_t size;
nuclear@17 32 uint32_t addr;
nuclear@17 33 uint32_t shndx;
nuclear@17 34 };
nuclear@17 35
nuclear@17 36 struct mboot_mmap {
nuclear@17 37 uint32_t skip;
nuclear@17 38 uint32_t base_low, base_high;
nuclear@17 39 uint32_t length_low, length_high;
nuclear@17 40 uint32_t type;
nuclear@17 41 };
nuclear@17 42
nuclear@17 43 struct mboot_drive {
nuclear@17 44 uint32_t size;
nuclear@17 45 uint8_t id;
nuclear@17 46 uint8_t mode;
nuclear@17 47 uint16_t cyl;
nuclear@17 48 uint8_t heads, sect;
nuclear@17 49 uint16_t ports[1]; /* zero-terminated */
nuclear@17 50 } __attribute__ ((packed));
nuclear@17 51
nuclear@17 52 struct mboot_apm {
nuclear@17 53 uint16_t ver;
nuclear@17 54 uint16_t cseg;
nuclear@17 55 uint32_t offs;
nuclear@17 56 uint16_t cseg16;
nuclear@17 57 uint16_t dseg;
nuclear@17 58 uint16_t flags;
nuclear@17 59 uint16_t cseg_len;
nuclear@17 60 uint16_t cseg16_len;
nuclear@17 61 uint16_t dseg_len;
nuclear@17 62 } __attribute__ ((packed));
nuclear@17 63
nuclear@17 64 struct mboot_vbe {
nuclear@17 65 uint32_t ctl_info;
nuclear@17 66 uint32_t mode_info;
nuclear@17 67 uint16_t mode;
nuclear@17 68 uint16_t ifseg, ifoffs, iflen;
nuclear@17 69 } __attribute__ ((packed));
nuclear@17 70
nuclear@17 71
nuclear@17 72 /* multiboot information structure */
nuclear@17 73 struct mboot_info {
nuclear@17 74 uint32_t flags;
nuclear@17 75 /* mem_lower: available low memory (up to 640kb)
nuclear@17 76 * mem_upper: available upper memory (from 1mb and upwards)
nuclear@17 77 */
nuclear@17 78 uint32_t mem_lower, mem_upper;
nuclear@17 79 /* boot device fields: MSB -> [part3|part2|part1|drive] <- LSB */
nuclear@17 80 uint32_t boot_dev;
nuclear@17 81 char *cmdline;
nuclear@17 82 /* loaded kernel modules */
nuclear@17 83 uint32_t mods_count;
nuclear@17 84 struct mboot_module *mods;
nuclear@17 85 /* elf sections table */
nuclear@17 86 struct mboot_elf_shdr_table elf;
nuclear@17 87 /* memory map */
nuclear@17 88 uint32_t mmap_len;
nuclear@17 89 struct mboot_mmap *mmap;
nuclear@17 90 /* drives table */
nuclear@17 91 uint32_t drives_len;
nuclear@17 92 struct mboot_drive *drives;
nuclear@17 93 /* address of BIOS ROM configuration table */
nuclear@17 94 uint32_t cfgtable;
nuclear@17 95 char *boot_loader_name;
nuclear@17 96 /* advanced power management */
nuclear@17 97 struct mboot_apm *apm;
nuclear@17 98 /* video bios extensions */
nuclear@17 99 struct mboot_vbe vbe;
nuclear@17 100 };
nuclear@17 101
nuclear@17 102
nuclear@17 103 #endif /* MBOOT_H_ */