diff options
Diffstat (limited to 'util/mkelfImage/linux-i386/x86-linux.h')
| -rw-r--r-- | util/mkelfImage/linux-i386/x86-linux.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/util/mkelfImage/linux-i386/x86-linux.h b/util/mkelfImage/linux-i386/x86-linux.h new file mode 100644 index 0000000000..fe1673ea67 --- /dev/null +++ b/util/mkelfImage/linux-i386/x86-linux.h @@ -0,0 +1,162 @@ +#ifndef X86_LINUX_H +#define X86_LINUX_H + +#define E820MAP 0x2d0 /* our map */ +#define E820MAX 32 /* number of entries in E820MAP */ +#define E820NR 0x1e8 /* # entries in E820MAP */ + +#ifndef ASSEMBLY + +struct e820entry { + uint64_t addr; /* start of memory segment */ + uint64_t size; /* size of memory segment */ + uint32_t type; /* type of memory segment */ +#define E820_RAM 1 +#define E820_RESERVED 2 +#define E820_ACPI 3 /* usable as RAM once ACPI tables have been read */ +#define E820_NVS 4 +} __attribute__((packed)); + +/* FIXME expand on drive_info_struct... */ +struct drive_info_struct { + uint8_t dummy[32]; +}; +struct sys_desc_table { + uint16_t length; + uint8_t table[318]; +}; + +struct apm_bios_info { + uint16_t version; /* 0x40 */ + uint16_t cseg; /* 0x42 */ + uint32_t offset; /* 0x44 */ + uint16_t cseg_16; /* 0x48 */ + uint16_t dseg; /* 0x4a */ + uint16_t flags; /* 0x4c */ + uint16_t cseg_len; /* 0x4e */ + uint16_t cseg_16_len; /* 0x50 */ + uint16_t dseg_len; /* 0x52 */ + uint8_t reserved[44]; /* 0x54 */ +}; + + +struct x86_linux_param_header { + uint8_t orig_x; /* 0x00 */ + uint8_t orig_y; /* 0x01 */ + uint16_t ext_mem_k; /* 0x02 -- EXT_MEM_K sits here */ + uint16_t orig_video_page; /* 0x04 */ + uint8_t orig_video_mode; /* 0x06 */ + uint8_t orig_video_cols; /* 0x07 */ + uint16_t unused2; /* 0x08 */ + uint16_t orig_video_ega_bx; /* 0x0a */ + uint16_t unused3; /* 0x0c */ + uint8_t orig_video_lines; /* 0x0e */ + uint8_t orig_video_isVGA; /* 0x0f */ + uint16_t orig_video_points; /* 0x10 */ + + /* VESA graphic mode -- linear frame buffer */ + uint16_t lfb_width; /* 0x12 */ + uint16_t lfb_height; /* 0x14 */ + uint16_t lfb_depth; /* 0x16 */ + uint32_t lfb_base; /* 0x18 */ + uint32_t lfb_size; /* 0x1c */ + uint16_t cl_magic; /* 0x20 */ +#define CL_MAGIC_VALUE 0xA33F + uint16_t cl_offset; /* 0x22 */ + uint16_t lfb_linelength; /* 0x24 */ + uint8_t red_size; /* 0x26 */ + uint8_t red_pos; /* 0x27 */ + uint8_t green_size; /* 0x28 */ + uint8_t green_pos; /* 0x29 */ + uint8_t blue_size; /* 0x2a */ + uint8_t blue_pos; /* 0x2b */ + uint8_t rsvd_size; /* 0x2c */ + uint8_t rsvd_pos; /* 0x2d */ + uint16_t vesapm_seg; /* 0x2e */ + uint16_t vesapm_off; /* 0x30 */ + uint16_t pages; /* 0x32 */ + uint8_t reserved4[12]; /* 0x34 -- 0x3f reserved for future expansion */ + + struct apm_bios_info apm_bios_info; /* 0x40 */ + struct drive_info_struct drive_info; /* 0x80 */ + struct sys_desc_table sys_desc_table; /* 0xa0 */ + uint32_t alt_mem_k; /* 0x1e0 */ + uint8_t reserved5[4]; /* 0x1e4 */ + uint8_t e820_map_nr; /* 0x1e8 */ + uint8_t reserved6[8]; /* 0x1e9 */ + uint8_t setup_sects; /* 0x1f1 */ + uint16_t mount_root_rdonly; /* 0x1f2 */ + uint8_t reserved7[4]; /* 0x1f4 */ + uint16_t ramdisk_flags; /* 0x1f8 */ +#define RAMDISK_IMAGE_START_MASK 0x07FF +#define RAMDISK_PROMPT_FLAG 0x8000 +#define RAMDISK_LOAD_FLAG 0x4000 + uint16_t vid_mode; /* 0x1fa */ + uint16_t root_dev; /* 0x1fc */ + uint8_t reserved9[1]; /* 0x1fe */ + uint8_t aux_device_info; /* 0x1ff */ + /* 2.00+ */ + uint8_t reserved10[2]; /* 0x200 */ + uint8_t header_magic[4]; /* 0x202 */ + uint16_t protocol_version; /* 0x206 */ + uint8_t reserved11[8]; /* 0x208 */ + uint8_t loader_type; /* 0x210 */ +#define LOADER_TYPE_LOADLIN 1 +#define LOADER_TYPE_BOOTSECT_LOADER 2 +#define LOADER_TYPE_SYSLINUX 3 +#define LOADER_TYPE_ETHERBOOT 4 +#define LOADER_TYPE_UNKNOWN 0xFF + uint8_t loader_flags; /* 0x211 */ + uint8_t reserved12[2]; /* 0x212 */ + uint32_t kernel_start; /* 0x214 */ + uint32_t initrd_start; /* 0x218 */ + uint32_t initrd_size; /* 0x21c */ + uint8_t reserved13[4]; /* 0x220 */ + /* 2.01+ */ + uint16_t heap_end_ptr; /* 0x224 */ + uint8_t reserved14[2]; /* 0x226 */ + /* 2.02+ */ + uint32_t cmd_line_ptr; /* 0x228 */ + /* 2.03+ */ + uint32_t initrd_addr_max; /* 0x22c */ + uint8_t reserved15[160]; /* 0x230 */ + struct e820entry e820_map[E820MAX]; /* 0x2d0 */ + /* 0x550 */ +#define COMMAND_LINE_SIZE 256 +}; + +struct x86_linux_header { + uint8_t reserved1[0x1f1]; /* 0x000 */ + uint8_t setup_sects; /* 0x1f1 */ + uint16_t root_flags; /* 0x1f2 */ + uint8_t reserved2[6]; /* 0x1f4 */ + uint16_t vid_mode; /* 0x1fa */ + uint16_t root_dev; /* 0x1fc */ + uint16_t boot_sector_magic; /* 0x1fe */ + /* 2.00+ */ + uint8_t reserved3[2]; /* 0x200 */ + uint8_t header_magic[4]; /* 0x202 */ + uint16_t protocol_version; /* 0x206 */ + uint32_t realmode_swtch; /* 0x208 */ + uint16_t start_sys; /* 0x20c */ + uint16_t kver_addr; /* 0x20e */ + uint8_t type_of_loader; /* 0x210 */ + uint8_t loadflags; /* 0x211 */ + uint16_t setup_move_size; /* 0x212 */ + uint32_t code32_start; /* 0x214 */ + uint32_t ramdisk_image; /* 0x218 */ + uint32_t ramdisk_size; /* 0x21c */ + uint8_t reserved4[4]; /* 0x220 */ + /* 2.01+ */ + uint16_t heap_end_ptr; /* 0x224 */ + uint8_t reserved5[2]; /* 0x226 */ + /* 2.02+ */ + uint32_t cmd_line_ptr; /* 0x228 */ + /* 2.03+ */ + uint32_t initrd_addr_max; /* 0x22c */ + uint8_t tail[32*1024]; /* 0x230 */ +} __attribute__ ((packed)); + +#endif /* ASSEMBLY */ + +#endif /* X86_LINUX_H */ |