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https://git.proxmox.com/git/grub2
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3395fe5230
* grub-core/loader/i386/linux.c (grub_linux_setup_video): Use grub_video_get_driver_id and variable gfxpayloadforcelfb to fill have_vga. (grub_linux_boot): Rely on grub_linux_setup_video to fill have_vga and shift params->lfb_size. * include/grub/i386/linux.h: Make an enume out of have_vga values.
286 lines
9.7 KiB
C
286 lines
9.7 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1999,2000,2001,2002,2003,2004,2007,2008,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_LINUX_MACHINE_HEADER
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#define GRUB_LINUX_MACHINE_HEADER 1
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#define GRUB_LINUX_MAGIC_SIGNATURE 0x53726448 /* "HdrS" */
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#define GRUB_LINUX_DEFAULT_SETUP_SECTS 4
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#define GRUB_LINUX_INITRD_MAX_ADDRESS 0x37FFFFFF
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#define GRUB_LINUX_MAX_SETUP_SECTS 64
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#define GRUB_LINUX_BOOT_LOADER_TYPE 0x72
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#define GRUB_LINUX_HEAP_END_OFFSET (0x9000 - 0x200)
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#define GRUB_LINUX_BZIMAGE_ADDR 0x100000
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#define GRUB_LINUX_ZIMAGE_ADDR 0x10000
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#define GRUB_LINUX_OLD_REAL_MODE_ADDR 0x90000
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#define GRUB_LINUX_SETUP_STACK 0x9000
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#define GRUB_LINUX_FLAG_BIG_KERNEL 0x1
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#define GRUB_LINUX_FLAG_QUIET 0x20
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#define GRUB_LINUX_FLAG_CAN_USE_HEAP 0x80
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/* Linux's video mode selection support. Actually I hate it! */
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#define GRUB_LINUX_VID_MODE_NORMAL 0xFFFF
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#define GRUB_LINUX_VID_MODE_EXTENDED 0xFFFE
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#define GRUB_LINUX_VID_MODE_ASK 0xFFFD
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#define GRUB_LINUX_VID_MODE_VESA_START 0x0300
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#define GRUB_LINUX_SETUP_MOVE_SIZE 0x9100
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#define GRUB_LINUX_CL_MAGIC 0xA33F
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#ifdef __x86_64__
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#define GRUB_LINUX_EFI_SIGNATURE \
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('4' << 24 | '6' << 16 | 'L' << 8 | 'E')
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#else
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#define GRUB_LINUX_EFI_SIGNATURE \
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('2' << 24 | '3' << 16 | 'L' << 8 | 'E')
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#endif
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#define GRUB_LINUX_EFI_SIGNATURE_0204 \
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('L' << 24 | 'I' << 16 | 'F' << 8 | 'E')
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#define GRUB_LINUX_OFW_SIGNATURE \
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(' ' << 24 | 'W' << 16 | 'F' << 8 | 'O')
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#ifndef ASM_FILE
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#define GRUB_E820_RAM 1
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#define GRUB_E820_RESERVED 2
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#define GRUB_E820_ACPI 3
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#define GRUB_E820_NVS 4
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#define GRUB_E820_BADRAM 5
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#define GRUB_E820_MAX_ENTRY 128
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struct grub_e820_mmap
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{
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grub_uint64_t addr;
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grub_uint64_t size;
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grub_uint32_t type;
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} __attribute__((packed));
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enum
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{
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GRUB_VIDEO_LINUX_TYPE_TEXT = 0x01,
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GRUB_VIDEO_LINUX_TYPE_VESA = 0x23, /* VESA VGA in graphic mode. */
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GRUB_VIDEO_LINUX_TYPE_EFIFB = 0x70, /* EFI Framebuffer. */
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GRUB_VIDEO_LINUX_TYPE_SIMPLE = 0x70 /* Linear framebuffer without any additional functions. */
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};
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/* For the Linux/i386 boot protocol version 2.03. */
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struct linux_kernel_header
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{
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grub_uint8_t code1[0x0020];
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grub_uint16_t cl_magic; /* Magic number 0xA33F */
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grub_uint16_t cl_offset; /* The offset of command line */
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grub_uint8_t code2[0x01F1 - 0x0020 - 2 - 2];
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grub_uint8_t setup_sects; /* The size of the setup in sectors */
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grub_uint16_t root_flags; /* If the root is mounted readonly */
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grub_uint16_t syssize; /* obsolete */
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grub_uint16_t swap_dev; /* obsolete */
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grub_uint16_t ram_size; /* obsolete */
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grub_uint16_t vid_mode; /* Video mode control */
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grub_uint16_t root_dev; /* Default root device number */
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grub_uint16_t boot_flag; /* 0xAA55 magic number */
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grub_uint16_t jump; /* Jump instruction */
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grub_uint32_t header; /* Magic signature "HdrS" */
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grub_uint16_t version; /* Boot protocol version supported */
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grub_uint32_t realmode_swtch; /* Boot loader hook */
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grub_uint16_t start_sys; /* The load-low segment (obsolete) */
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grub_uint16_t kernel_version; /* Points to kernel version string */
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grub_uint8_t type_of_loader; /* Boot loader identifier */
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#define LINUX_LOADER_ID_LILO 0x0
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#define LINUX_LOADER_ID_LOADLIN 0x1
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#define LINUX_LOADER_ID_BOOTSECT 0x2
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#define LINUX_LOADER_ID_SYSLINUX 0x3
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#define LINUX_LOADER_ID_ETHERBOOT 0x4
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#define LINUX_LOADER_ID_ELILO 0x5
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#define LINUX_LOADER_ID_GRUB 0x7
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#define LINUX_LOADER_ID_UBOOT 0x8
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#define LINUX_LOADER_ID_XEN 0x9
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#define LINUX_LOADER_ID_GUJIN 0xa
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#define LINUX_LOADER_ID_QEMU 0xb
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grub_uint8_t loadflags; /* Boot protocol option flags */
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grub_uint16_t setup_move_size; /* Move to high memory size */
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grub_uint32_t code32_start; /* Boot loader hook */
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grub_uint32_t ramdisk_image; /* initrd load address */
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grub_uint32_t ramdisk_size; /* initrd size */
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grub_uint32_t bootsect_kludge; /* obsolete */
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grub_uint16_t heap_end_ptr; /* Free memory after setup end */
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grub_uint16_t pad1; /* Unused */
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grub_uint32_t cmd_line_ptr; /* Points to the kernel command line */
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grub_uint32_t initrd_addr_max; /* Highest address for initrd */
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} __attribute__ ((packed));
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/* Boot parameters for Linux based on 2.6.12. This is used by the setup
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sectors of Linux, and must be simulated by GRUB on EFI, because
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the setup sectors depend on BIOS. */
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struct linux_kernel_params
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{
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grub_uint8_t video_cursor_x; /* 0 */
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grub_uint8_t video_cursor_y;
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grub_uint16_t ext_mem; /* 2 */
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grub_uint16_t video_page; /* 4 */
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grub_uint8_t video_mode; /* 6 */
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grub_uint8_t video_width; /* 7 */
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grub_uint8_t padding1[0xa - 0x8];
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grub_uint16_t video_ega_bx; /* a */
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grub_uint8_t padding2[0xe - 0xc];
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grub_uint8_t video_height; /* e */
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grub_uint8_t have_vga; /* f */
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grub_uint16_t font_size; /* 10 */
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grub_uint16_t lfb_width; /* 12 */
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grub_uint16_t lfb_height; /* 14 */
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grub_uint16_t lfb_depth; /* 16 */
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grub_uint32_t lfb_base; /* 18 */
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grub_uint32_t lfb_size; /* 1c */
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grub_uint16_t cl_magic; /* 20 */
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grub_uint16_t cl_offset;
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grub_uint16_t lfb_line_len; /* 24 */
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grub_uint8_t red_mask_size; /* 26 */
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grub_uint8_t red_field_pos;
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grub_uint8_t green_mask_size;
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grub_uint8_t green_field_pos;
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grub_uint8_t blue_mask_size;
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grub_uint8_t blue_field_pos;
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grub_uint8_t reserved_mask_size;
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grub_uint8_t reserved_field_pos;
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grub_uint16_t vesapm_segment; /* 2e */
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grub_uint16_t vesapm_offset; /* 30 */
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grub_uint16_t lfb_pages; /* 32 */
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grub_uint16_t vesa_attrib; /* 34 */
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grub_uint32_t capabilities; /* 36 */
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grub_uint8_t padding3[0x40 - 0x3a];
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grub_uint16_t apm_version; /* 40 */
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grub_uint16_t apm_code_segment; /* 42 */
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grub_uint32_t apm_entry; /* 44 */
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grub_uint16_t apm_16bit_code_segment; /* 48 */
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grub_uint16_t apm_data_segment; /* 4a */
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grub_uint16_t apm_flags; /* 4c */
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grub_uint32_t apm_code_len; /* 4e */
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grub_uint16_t apm_data_len; /* 52 */
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grub_uint8_t padding4[0x60 - 0x54];
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grub_uint32_t ist_signature; /* 60 */
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grub_uint32_t ist_command; /* 64 */
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grub_uint32_t ist_event; /* 68 */
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grub_uint32_t ist_perf_level; /* 6c */
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grub_uint8_t padding5[0x80 - 0x70];
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grub_uint8_t hd0_drive_info[0x10]; /* 80 */
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grub_uint8_t hd1_drive_info[0x10]; /* 90 */
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grub_uint16_t rom_config_len; /* a0 */
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grub_uint8_t padding6[0xb0 - 0xa2];
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grub_uint32_t ofw_signature; /* b0 */
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grub_uint32_t ofw_num_items; /* b4 */
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grub_uint32_t ofw_cif_handler; /* b8 */
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grub_uint32_t ofw_idt; /* bc */
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grub_uint8_t padding7[0x1b8 - 0xc0];
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union
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{
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struct
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{
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grub_uint32_t efi_system_table; /* 1b8 */
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grub_uint32_t padding7_1; /* 1bc */
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grub_uint32_t efi_signature; /* 1c0 */
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grub_uint32_t efi_mem_desc_size; /* 1c4 */
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grub_uint32_t efi_mem_desc_version; /* 1c8 */
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grub_uint32_t efi_mmap_size; /* 1cc */
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grub_uint32_t efi_mmap; /* 1d0 */
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} v0204;
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struct
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{
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grub_uint32_t padding7_1; /* 1b8 */
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grub_uint32_t padding7_2; /* 1bc */
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grub_uint32_t efi_signature; /* 1c0 */
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grub_uint32_t efi_system_table; /* 1c4 */
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grub_uint32_t efi_mem_desc_size; /* 1c8 */
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grub_uint32_t efi_mem_desc_version; /* 1cc */
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grub_uint32_t efi_mmap; /* 1d0 */
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grub_uint32_t efi_mmap_size; /* 1d4 */
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grub_uint32_t efi_system_table_hi; /* 1d8 */
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grub_uint32_t efi_mmap_hi; /* 1dc */
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} v0206;
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};
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grub_uint32_t alt_mem; /* 1e0 */
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grub_uint8_t padding8[0x1e8 - 0x1e4];
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grub_uint8_t mmap_size; /* 1e8 */
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grub_uint8_t padding9[0x1f1 - 0x1e9];
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grub_uint8_t setup_sects; /* The size of the setup in sectors */
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grub_uint16_t root_flags; /* If the root is mounted readonly */
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grub_uint16_t syssize; /* obsolete */
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grub_uint16_t swap_dev; /* obsolete */
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grub_uint16_t ram_size; /* obsolete */
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grub_uint16_t vid_mode; /* Video mode control */
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grub_uint16_t root_dev; /* Default root device number */
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grub_uint8_t padding10; /* 1fe */
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grub_uint8_t ps_mouse; /* 1ff */
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grub_uint16_t jump; /* Jump instruction */
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grub_uint32_t header; /* Magic signature "HdrS" */
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grub_uint16_t version; /* Boot protocol version supported */
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grub_uint32_t realmode_swtch; /* Boot loader hook */
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grub_uint16_t start_sys; /* The load-low segment (obsolete) */
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grub_uint16_t kernel_version; /* Points to kernel version string */
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grub_uint8_t type_of_loader; /* Boot loader identifier */
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grub_uint8_t loadflags; /* Boot protocol option flags */
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grub_uint16_t setup_move_size; /* Move to high memory size */
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grub_uint32_t code32_start; /* Boot loader hook */
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grub_uint32_t ramdisk_image; /* initrd load address */
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grub_uint32_t ramdisk_size; /* initrd size */
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grub_uint32_t bootsect_kludge; /* obsolete */
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grub_uint16_t heap_end_ptr; /* Free memory after setup end */
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grub_uint16_t pad1; /* Unused */
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grub_uint32_t cmd_line_ptr; /* Points to the kernel command line */
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grub_uint8_t pad2[164]; /* 22c */
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struct grub_e820_mmap e820_map[GRUB_E820_MAX_ENTRY]; /* 2d0 */
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} __attribute__ ((packed));
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#endif /* ! ASM_FILE */
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#endif /* ! GRUB_LINUX_MACHINE_HEADER */
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