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Diffstat (limited to 'include/grub/i386/linux.h')
| -rw-r--r-- | include/grub/i386/linux.h | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/include/grub/i386/linux.h b/include/grub/i386/linux.h new file mode 100644 index 0000000..eddf925 --- /dev/null +++ b/include/grub/i386/linux.h @@ -0,0 +1,336 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 1999,2000,2001,2002,2003,2004,2007,2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef GRUB_I386_LINUX_HEADER +#define GRUB_I386_LINUX_HEADER 1 + +#include <grub/types.h> + +#define GRUB_LINUX_I386_MAGIC_SIGNATURE 0x53726448 /* "HdrS" */ +#define GRUB_LINUX_DEFAULT_SETUP_SECTS 4 +#define GRUB_LINUX_INITRD_MAX_ADDRESS 0x37FFFFFF +#define GRUB_LINUX_MAX_SETUP_SECTS 64 +#define GRUB_LINUX_BOOT_LOADER_TYPE 0x72 +#define GRUB_LINUX_HEAP_END_OFFSET (0x9000 - 0x200) + +#define GRUB_LINUX_BZIMAGE_ADDR 0x100000 +#define GRUB_LINUX_ZIMAGE_ADDR 0x10000 +#define GRUB_LINUX_OLD_REAL_MODE_ADDR 0x90000 +#define GRUB_LINUX_SETUP_STACK 0x9000 + +#define GRUB_LINUX_FLAG_BIG_KERNEL 0x1 +#define GRUB_LINUX_FLAG_QUIET 0x20 +#define GRUB_LINUX_FLAG_CAN_USE_HEAP 0x80 + +/* Linux's video mode selection support. Actually I hate it! */ +#define GRUB_LINUX_VID_MODE_NORMAL 0xFFFF +#define GRUB_LINUX_VID_MODE_EXTENDED 0xFFFE +#define GRUB_LINUX_VID_MODE_ASK 0xFFFD +#define GRUB_LINUX_VID_MODE_VESA_START 0x0300 + +#define GRUB_LINUX_CL_MAGIC 0xA33F + +#define VIDEO_CAPABILITY_SKIP_QUIRKS (1 << 0) +#define VIDEO_CAPABILITY_64BIT_BASE (1 << 1) /* Frame buffer base is 64-bit. */ + +/* Maximum number of MBR signatures to store. */ +#define EDD_MBR_SIG_MAX 16 + +#ifdef __x86_64__ + +#define GRUB_LINUX_EFI_SIGNATURE \ + ('4' << 24 | '6' << 16 | 'L' << 8 | 'E') + +#else + +#define GRUB_LINUX_EFI_SIGNATURE \ + ('2' << 24 | '3' << 16 | 'L' << 8 | 'E') + +#endif + +#define GRUB_LINUX_EFI_SIGNATURE_0204 \ + ('L' << 24 | 'I' << 16 | 'F' << 8 | 'E') + +#define GRUB_LINUX_OFW_SIGNATURE \ + (' ' << 24 | 'W' << 16 | 'F' << 8 | 'O') + +#ifndef ASM_FILE + +#define GRUB_E820_RAM 1 +#define GRUB_E820_RESERVED 2 +#define GRUB_E820_ACPI 3 +#define GRUB_E820_NVS 4 +#define GRUB_E820_BADRAM 5 + +struct grub_e820_mmap +{ + grub_uint64_t addr; + grub_uint64_t size; + grub_uint32_t type; +} GRUB_PACKED; + +enum + { + GRUB_VIDEO_LINUX_TYPE_TEXT = 0x01, + GRUB_VIDEO_LINUX_TYPE_VESA = 0x23, /* VESA VGA in graphic mode. */ + GRUB_VIDEO_LINUX_TYPE_EFIFB = 0x70, /* EFI Framebuffer. */ + GRUB_VIDEO_LINUX_TYPE_SIMPLE = 0x70 /* Linear framebuffer without any additional functions. */ + }; + +/* For the Linux/i386 boot protocol version 2.10. */ +struct linux_i386_kernel_header +{ + grub_uint8_t code1[0x0020]; + grub_uint16_t cl_magic; /* Magic number 0xA33F */ + grub_uint16_t cl_offset; /* The offset of command line */ + grub_uint8_t code2[0x01F1 - 0x0020 - 2 - 2]; + grub_uint8_t setup_sects; /* The size of the setup in sectors */ + grub_uint16_t root_flags; /* If the root is mounted readonly */ + grub_uint16_t syssize; /* obsolete */ + grub_uint16_t swap_dev; /* obsolete */ + grub_uint16_t ram_size; /* obsolete */ + grub_uint16_t vid_mode; /* Video mode control */ + grub_uint16_t root_dev; /* Default root device number */ + grub_uint16_t boot_flag; /* 0xAA55 magic number */ + grub_uint16_t jump; /* Jump instruction */ + grub_uint32_t header; /* Magic signature "HdrS" */ + grub_uint16_t version; /* Boot protocol version supported */ + grub_uint32_t realmode_swtch; /* Boot loader hook */ + grub_uint16_t start_sys; /* The load-low segment (obsolete) */ + grub_uint16_t kernel_version; /* Points to kernel version string */ + grub_uint8_t type_of_loader; /* Boot loader identifier */ +#define LINUX_LOADER_ID_LILO 0x0 +#define LINUX_LOADER_ID_LOADLIN 0x1 +#define LINUX_LOADER_ID_BOOTSECT 0x2 +#define LINUX_LOADER_ID_SYSLINUX 0x3 +#define LINUX_LOADER_ID_ETHERBOOT 0x4 +#define LINUX_LOADER_ID_ELILO 0x5 +#define LINUX_LOADER_ID_GRUB 0x7 +#define LINUX_LOADER_ID_UBOOT 0x8 +#define LINUX_LOADER_ID_XEN 0x9 +#define LINUX_LOADER_ID_GUJIN 0xa +#define LINUX_LOADER_ID_QEMU 0xb + grub_uint8_t loadflags; /* Boot protocol option flags */ + grub_uint16_t setup_move_size; /* Move to high memory size */ + grub_uint32_t code32_start; /* Boot loader hook */ + grub_uint32_t ramdisk_image; /* initrd load address */ + grub_uint32_t ramdisk_size; /* initrd size */ + grub_uint32_t bootsect_kludge; /* obsolete */ + grub_uint16_t heap_end_ptr; /* Free memory after setup end */ + grub_uint16_t pad1; /* Unused */ + grub_uint32_t cmd_line_ptr; /* Points to the kernel command line */ + grub_uint32_t initrd_addr_max; /* Highest address for initrd */ + grub_uint32_t kernel_alignment; + grub_uint8_t relocatable; + grub_uint8_t min_alignment; + grub_uint8_t pad[2]; + grub_uint32_t cmdline_size; + grub_uint32_t hardware_subarch; + grub_uint64_t hardware_subarch_data; + grub_uint32_t payload_offset; + grub_uint32_t payload_length; + grub_uint64_t setup_data; + grub_uint64_t pref_address; + grub_uint32_t init_size; + grub_uint32_t handover_offset; +} GRUB_PACKED; + +/* Boot parameters for Linux based on 2.6.12. This is used by the setup + sectors of Linux, and must be simulated by GRUB on EFI, because + the setup sectors depend on BIOS. */ +struct linux_kernel_params +{ + grub_uint8_t video_cursor_x; /* 0 */ + grub_uint8_t video_cursor_y; + + grub_uint16_t ext_mem; /* 2 */ + + grub_uint16_t video_page; /* 4 */ + grub_uint8_t video_mode; /* 6 */ + grub_uint8_t video_width; /* 7 */ + + grub_uint8_t padding1[0xa - 0x8]; + + grub_uint16_t video_ega_bx; /* a */ + + grub_uint8_t padding2[0xe - 0xc]; + + grub_uint8_t video_height; /* e */ + grub_uint8_t have_vga; /* f */ + grub_uint16_t font_size; /* 10 */ + + grub_uint16_t lfb_width; /* 12 */ + grub_uint16_t lfb_height; /* 14 */ + grub_uint16_t lfb_depth; /* 16 */ + grub_uint32_t lfb_base; /* 18 */ + grub_uint32_t lfb_size; /* 1c */ + + grub_uint16_t cl_magic; /* 20 */ + grub_uint16_t cl_offset; + + grub_uint16_t lfb_line_len; /* 24 */ + grub_uint8_t red_mask_size; /* 26 */ + grub_uint8_t red_field_pos; + grub_uint8_t green_mask_size; + grub_uint8_t green_field_pos; + grub_uint8_t blue_mask_size; + grub_uint8_t blue_field_pos; + grub_uint8_t reserved_mask_size; + grub_uint8_t reserved_field_pos; + grub_uint16_t vesapm_segment; /* 2e */ + grub_uint16_t vesapm_offset; /* 30 */ + grub_uint16_t lfb_pages; /* 32 */ + grub_uint16_t vesa_attrib; /* 34 */ + grub_uint32_t capabilities; /* 36 */ + grub_uint32_t ext_lfb_base; /* 3a */ + + grub_uint8_t padding3[0x40 - 0x3e]; + + grub_uint16_t apm_version; /* 40 */ + grub_uint16_t apm_code_segment; /* 42 */ + grub_uint32_t apm_entry; /* 44 */ + grub_uint16_t apm_16bit_code_segment; /* 48 */ + grub_uint16_t apm_data_segment; /* 4a */ + grub_uint16_t apm_flags; /* 4c */ + grub_uint32_t apm_code_len; /* 4e */ + grub_uint16_t apm_data_len; /* 52 */ + + grub_uint8_t padding4[0x60 - 0x54]; + + grub_uint32_t ist_signature; /* 60 */ + grub_uint32_t ist_command; /* 64 */ + grub_uint32_t ist_event; /* 68 */ + grub_uint32_t ist_perf_level; /* 6c */ + grub_uint64_t acpi_rsdp_addr; /* 70 */ + + grub_uint8_t padding5[0x80 - 0x78]; + + grub_uint8_t hd0_drive_info[0x10]; /* 80 */ + grub_uint8_t hd1_drive_info[0x10]; /* 90 */ + grub_uint16_t rom_config_len; /* a0 */ + + grub_uint8_t padding6[0xb0 - 0xa2]; + + grub_uint32_t ofw_signature; /* b0 */ + grub_uint32_t ofw_num_items; /* b4 */ + grub_uint32_t ofw_cif_handler; /* b8 */ + grub_uint32_t ofw_idt; /* bc */ + + grub_uint8_t padding7[0x1b8 - 0xc0]; + + union + { + struct + { + grub_uint32_t efi_system_table; /* 1b8 */ + grub_uint32_t padding7_1; /* 1bc */ + grub_uint32_t efi_signature; /* 1c0 */ + grub_uint32_t efi_mem_desc_size; /* 1c4 */ + grub_uint32_t efi_mem_desc_version; /* 1c8 */ + grub_uint32_t efi_mmap_size; /* 1cc */ + grub_uint32_t efi_mmap; /* 1d0 */ + } v0204; + struct + { + grub_uint32_t padding7_1; /* 1b8 */ + grub_uint32_t padding7_2; /* 1bc */ + grub_uint32_t efi_signature; /* 1c0 */ + grub_uint32_t efi_system_table; /* 1c4 */ + grub_uint32_t efi_mem_desc_size; /* 1c8 */ + grub_uint32_t efi_mem_desc_version; /* 1cc */ + grub_uint32_t efi_mmap; /* 1d0 */ + grub_uint32_t efi_mmap_size; /* 1d4 */ + } v0206; + struct + { + grub_uint32_t padding7_1; /* 1b8 */ + grub_uint32_t padding7_2; /* 1bc */ + grub_uint32_t efi_signature; /* 1c0 */ + grub_uint32_t efi_system_table; /* 1c4 */ + grub_uint32_t efi_mem_desc_size; /* 1c8 */ + grub_uint32_t efi_mem_desc_version; /* 1cc */ + grub_uint32_t efi_mmap; /* 1d0 */ + grub_uint32_t efi_mmap_size; /* 1d4 */ + grub_uint32_t efi_system_table_hi; /* 1d8 */ + grub_uint32_t efi_mmap_hi; /* 1dc */ + } v0208; + }; + + grub_uint32_t alt_mem; /* 1e0 */ + + grub_uint8_t padding8[0x1e8 - 0x1e4]; + + grub_uint8_t mmap_size; /* 1e8 */ + + grub_uint8_t padding9[0x1ec - 0x1e9]; + + grub_uint8_t secure_boot; /* 1ec */ + + grub_uint8_t padding10[0x1f1 - 0x1ed]; + + /* Linux setup header copy - BEGIN. */ + grub_uint8_t setup_sects; /* The size of the setup in sectors */ + grub_uint16_t root_flags; /* If the root is mounted readonly */ + grub_uint16_t syssize; /* obsolete */ + grub_uint16_t swap_dev; /* obsolete */ + grub_uint16_t ram_size; /* obsolete */ + grub_uint16_t vid_mode; /* Video mode control */ + grub_uint16_t root_dev; /* Default root device number */ + + grub_uint8_t padding11; /* 1fe */ + grub_uint8_t ps_mouse; /* 1ff */ + + grub_uint16_t jump; /* Jump instruction */ + grub_uint32_t header; /* Magic signature "HdrS" */ + grub_uint16_t version; /* Boot protocol version supported */ + grub_uint32_t realmode_swtch; /* Boot loader hook */ + grub_uint16_t start_sys; /* The load-low segment (obsolete) */ + grub_uint16_t kernel_version; /* Points to kernel version string */ + grub_uint8_t type_of_loader; /* Boot loader identifier */ + grub_uint8_t loadflags; /* Boot protocol option flags */ + grub_uint16_t setup_move_size; /* Move to high memory size */ + grub_uint32_t code32_start; /* Boot loader hook */ + grub_uint32_t ramdisk_image; /* initrd load address */ + grub_uint32_t ramdisk_size; /* initrd size */ + grub_uint32_t bootsect_kludge; /* obsolete */ + grub_uint16_t heap_end_ptr; /* Free memory after setup end */ + grub_uint8_t ext_loader_ver; /* Extended loader version */ + grub_uint8_t ext_loader_type; /* Extended loader type */ + grub_uint32_t cmd_line_ptr; /* Points to the kernel command line */ + grub_uint32_t initrd_addr_max; /* Maximum initrd address */ + grub_uint32_t kernel_alignment; /* Alignment of the kernel */ + grub_uint8_t relocatable_kernel; /* Is the kernel relocatable */ + grub_uint8_t pad1[3]; + grub_uint32_t cmdline_size; /* Size of the kernel command line */ + grub_uint32_t hardware_subarch; + grub_uint64_t hardware_subarch_data; + grub_uint32_t payload_offset; + grub_uint32_t payload_length; + grub_uint64_t setup_data; + grub_uint64_t pref_address; + grub_uint32_t init_size; + grub_uint32_t handover_offset; + /* Linux setup header copy - END. */ + + grub_uint8_t _pad7[40]; + grub_uint32_t edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 290 */ + struct grub_e820_mmap e820_map[(0x400 - 0x2d0) / 20]; /* 2d0 */ +} GRUB_PACKED; +#endif /* ! ASM_FILE */ + +#endif /* ! GRUB_I386_LINUX_HEADER */ |