diff options
Diffstat (limited to '')
| -rw-r--r-- | include/x86/mb_header.h | 90 | ||||
| -rw-r--r-- | include/x86/mb_info.h | 246 | ||||
| -rw-r--r-- | include/x86/multiboot2.h | 416 | ||||
| -rw-r--r-- | include/x86/x86-linux.h | 271 |
4 files changed, 1023 insertions, 0 deletions
diff --git a/include/x86/mb_header.h b/include/x86/mb_header.h new file mode 100644 index 0000000..9bf5e6c --- /dev/null +++ b/include/x86/mb_header.h @@ -0,0 +1,90 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2000 Free Software Foundation, Inc. + * + * This program 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 2 of the License, or + * (at your option) any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* + * MultiBoot Header description + */ + +struct multiboot_header +{ + /* Must be MULTIBOOT_MAGIC - see below. */ + uint32_t magic; + + /* Feature flags - see below. */ + uint32_t flags; + + /* + * Checksum + * + * The above fields plus this one must equal 0 mod 2^32. + */ + uint32_t checksum; + + /* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */ + uint32_t header_addr; + uint32_t load_addr; + uint32_t load_end_addr; + uint32_t bss_end_addr; + uint32_t entry_addr; + + /* These are only valid if MULTIBOOT_VIDEO_MODE is set. */ + uint32_t mode_type; + uint32_t width; + uint32_t height; + uint32_t depth; +}; + +/* + * The entire multiboot_header must be contained + * within the first MULTIBOOT_SEARCH bytes of the kernel image. + */ +#define MULTIBOOT_SEARCH 8192 +#define MULTIBOOT_FOUND(addr, len) \ + (! ((addr) & 0x3) \ + && (len) >= 12 \ + && *((int *) (addr)) == MULTIBOOT_MAGIC \ + && ! (*((uint32_t *) (addr)) + *((uint32_t *) (addr + 4)) \ + + *((uint32_t *) (addr + 8))) \ + && (! (MULTIBOOT_AOUT_KLUDGE & *((int *) (addr + 4))) || (len) >= 32) \ + && (! (MULTIBOOT_VIDEO_MODE & *((int *) (addr + 4))) || (len) >= 48)) + +/* Magic value identifying the multiboot_header. */ +#define MULTIBOOT_MAGIC 0x1BADB002 + +/* + * Features flags for 'flags'. + * If a boot loader sees a flag in MULTIBOOT_MUSTKNOW set + * and it doesn't understand it, it must fail. + */ +#define MULTIBOOT_MUSTKNOW 0x0000FFFF + +/* currently unsupported flags... this is a kind of version number. */ +#define MULTIBOOT_UNSUPPORTED 0x0000FFF8 + +/* Align all boot modules on i386 page (4KB) boundaries. */ +#define MULTIBOOT_PAGE_ALIGN 0x00000001 + +/* Must pass memory information to OS. */ +#define MULTIBOOT_MEMORY_INFO 0x00000002 + +/* Must pass video information to OS. */ +#define MULTIBOOT_VIDEO_MODE 0x00000004 + +/* This flag indicates the use of the address fields in the header. */ +#define MULTIBOOT_AOUT_KLUDGE 0x00010000 diff --git a/include/x86/mb_info.h b/include/x86/mb_info.h new file mode 100644 index 0000000..fd1bb1d --- /dev/null +++ b/include/x86/mb_info.h @@ -0,0 +1,246 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2000 Free Software Foundation, Inc. + * + * This program 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 2 of the License, or + * (at your option) any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* + * The structure type "mod_list" is used by the "multiboot_info" structure. + */ + +struct mod_list +{ + /* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */ + uint32_t mod_start; + uint32_t mod_end; + + /* Module command line */ + uint32_t cmdline; + + /* padding to take it to 16 bytes (must be zero) */ + uint32_t pad; +}; + + +/* + * INT-15, AX=E820 style "AddressRangeDescriptor" + * ...with a "size" parameter on the front which is the structure size - 4, + * pointing to the next one, up until the full buffer length of the memory + * map has been reached. + */ + +struct AddrRangeDesc +{ + uint32_t size; + uint32_t base_addr_low; + uint32_t base_addr_high; + uint32_t length_low; + uint32_t length_high; + uint32_t Type; + + /* unspecified optional padding... */ +}; + +/* usable memory "Type", all others are reserved. */ +#define MB_ARD_MEMORY 1 + + +/* Drive Info structure. */ +struct drive_info +{ + /* The size of this structure. */ + uint32_t size; + + /* The BIOS drive number. */ + uint8_t drive_number; + + /* The access mode (see below). */ + uint8_t drive_mode; + + /* The BIOS geometry. */ + uint16_t drive_cylinders; + uint8_t drive_heads; + uint8_t drive_sectors; + + /* The array of I/O ports used for the drive. */ + uint16_t drive_ports[0]; +}; + +/* Drive Mode. */ +#define MB_DI_CHS_MODE 0 +#define MB_DI_LBA_MODE 1 + + +/* APM BIOS info. */ +struct apm_info +{ + uint16_t version; + uint16_t cseg; + uint32_t offset; + uint32_t cseg_16; + uint32_t dseg_16; + uint32_t cseg_len; + uint32_t cseg_16_len; + uint32_t dseg_16_len; +}; + + +/* + * MultiBoot Info description + * + * This is the struct passed to the boot image. This is done by placing + * its address in the EAX register. + */ + +struct multiboot_info +{ + /* MultiBoot info version number */ + uint32_t flags; + + /* Available memory from BIOS */ + uint32_t mem_lower; + uint32_t mem_upper; + + /* "root" partition */ + uint32_t boot_device; + + /* Kernel command line */ + uint32_t cmdline; + + /* Boot-Module list */ + uint32_t mods_count; + uint32_t mods_addr; + + union + { + struct + { + /* (a.out) Kernel symbol table info */ + uint32_t tabsize; + uint32_t strsize; + uint32_t addr; + uint32_t pad; + } + a; + + struct + { + /* (ELF) Kernel section header table */ + uint32_t num; + uint32_t size; + uint32_t addr; + uint32_t shndx; + } + e; + } + syms; + + /* Memory Mapping buffer */ + uint32_t mmap_length; + uint32_t mmap_addr; + + /* Drive Info buffer */ + uint32_t drives_length; + uint32_t drives_addr; + + /* ROM configuration table */ + uint32_t config_table; + + /* Boot Loader Name */ + uint32_t boot_loader_name; + + /* APM table */ + uint32_t apm_table; + + /* Video */ + uint32_t vbe_control_info; + uint32_t vbe_mode_info; + uint16_t vbe_mode; + uint16_t vbe_interface_seg; + uint16_t vbe_interface_off; + uint16_t vbe_interface_len; + + uint64_t framebuffer_addr; + uint32_t framebuffer_pitch; + uint32_t framebuffer_width; + uint32_t framebuffer_height; + uint8_t framebuffer_bpp; + uint8_t framebuffer_type; + + union { + struct { + uint32_t framebuffer_palette_addr; + uint16_t framebuffer_palette_num_color; + }; + struct { + uint8_t framebuffer_red_field_position; + uint8_t framebuffer_red_mask_size; + uint8_t framebuffer_green_field_position; + uint8_t framebuffer_green_mask_size; + uint8_t framebuffer_blue_field_position; + uint8_t framebuffer_blue_mask_size; + }; + }; +}; + +/* + * Flags to be set in the 'flags' parameter above + */ + +/* is there basic lower/upper memory information? */ +#define MB_INFO_MEMORY 0x00000001 +/* is there a boot device set? */ +#define MB_INFO_BOOTDEV 0x00000002 +/* is the command-line defined? */ +#define MB_INFO_CMDLINE 0x00000004 +/* are there modules to do something with? */ +#define MB_INFO_MODS 0x00000008 + +/* These next two are mutually exclusive */ + +/* is there a symbol table loaded? */ +#define MB_INFO_AOUT_SYMS 0x00000010 +/* is there an ELF section header table? */ +#define MB_INFO_ELF_SHDR 0x00000020 + +/* is there a full memory map? */ +#define MB_INFO_MEM_MAP 0x00000040 + +/* Is there drive info? */ +#define MB_INFO_DRIVE_INFO 0x00000080 + +/* Is there a config table? */ +#define MB_INFO_CONFIG_TABLE 0x00000100 + +/* Is there a boot loader name? */ +#define MB_INFO_BOOT_LOADER_NAME 0x00000200 + +/* Is there a APM table? */ +#define MB_INFO_APM_TABLE 0x00000400 + +/* Is there video information? */ +#define MB_INFO_VIDEO_INFO 0x00000800 +#define MB_INFO_FRAMEBUFFER_INFO 0x00001000 + +#define MB_FRAMEBUFFER_TYPE_INDEXED 0 +#define MB_FRAMEBUFFER_TYPE_RGB 1 +#define MB_FRAMEBUFFER_TYPE_EGA_TEXT 2 + +/* + * The following value must be present in the EAX register. + */ + +#define MULTIBOOT_VALID 0x2BADB002 diff --git a/include/x86/multiboot2.h b/include/x86/multiboot2.h new file mode 100644 index 0000000..5693923 --- /dev/null +++ b/include/x86/multiboot2.h @@ -0,0 +1,416 @@ +/* multiboot2.h - Multiboot 2 header file. */ +/* Copyright (C) 1999,2003,2007,2008,2009,2010 Free Software Foundation, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL ANY + * DEVELOPER OR DISTRIBUTOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR + * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef MULTIBOOT_HEADER +#define MULTIBOOT_HEADER 1 + +/* How many bytes from the start of the file we search for the header. */ +#define MULTIBOOT_SEARCH 32768 +#define MULTIBOOT_HEADER_ALIGN 8 + +/* The magic field should contain this. */ +#define MULTIBOOT2_HEADER_MAGIC 0xe85250d6 + +/* This should be in %eax. */ +#define MULTIBOOT2_BOOTLOADER_MAGIC 0x36d76289 + +/* Alignment of multiboot modules. */ +#define MULTIBOOT_MOD_ALIGN 0x00001000 + +/* Alignment of the multiboot info structure. */ +#define MULTIBOOT_INFO_ALIGN 0x00000008 + +/* Flags set in the 'flags' member of the multiboot header. */ + +#define MULTIBOOT_TAG_ALIGN 8 +#define MULTIBOOT_TAG_TYPE_END 0 +#define MULTIBOOT_TAG_TYPE_CMDLINE 1 +#define MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME 2 +#define MULTIBOOT_TAG_TYPE_MODULE 3 +#define MULTIBOOT_TAG_TYPE_BASIC_MEMINFO 4 +#define MULTIBOOT_TAG_TYPE_BOOTDEV 5 +#define MULTIBOOT_TAG_TYPE_MMAP 6 +#define MULTIBOOT_TAG_TYPE_VBE 7 +#define MULTIBOOT_TAG_TYPE_FRAMEBUFFER 8 +#define MULTIBOOT_TAG_TYPE_ELF_SECTIONS 9 +#define MULTIBOOT_TAG_TYPE_APM 10 +#define MULTIBOOT_TAG_TYPE_EFI32 11 +#define MULTIBOOT_TAG_TYPE_EFI64 12 +#define MULTIBOOT_TAG_TYPE_SMBIOS 13 +#define MULTIBOOT_TAG_TYPE_ACPI_OLD 14 +#define MULTIBOOT_TAG_TYPE_ACPI_NEW 15 +#define MULTIBOOT_TAG_TYPE_NETWORK 16 +#define MULTIBOOT_TAG_TYPE_EFI_MMAP 17 +#define MULTIBOOT_TAG_TYPE_EFI_BS 18 +#define MULTIBOOT_TAG_TYPE_EFI32_IH 19 +#define MULTIBOOT_TAG_TYPE_EFI64_IH 20 +#define MULTIBOOT_TAG_TYPE_LOAD_BASE_ADDR 21 + +#define MULTIBOOT_HEADER_TAG_END 0 +#define MULTIBOOT_HEADER_TAG_INFORMATION_REQUEST 1 +#define MULTIBOOT_HEADER_TAG_ADDRESS 2 +#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS 3 +#define MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS 4 +#define MULTIBOOT_HEADER_TAG_FRAMEBUFFER 5 +#define MULTIBOOT_HEADER_TAG_MODULE_ALIGN 6 +#define MULTIBOOT_HEADER_TAG_EFI_BS 7 +#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI64 9 +#define MULTIBOOT_HEADER_TAG_RELOCATABLE 10 + +#define MULTIBOOT2_ARCHITECTURE_I386 0 +#define MULTIBOOT2_ARCHITECTURE_MIPS32 4 +#define MULTIBOOT_HEADER_TAG_OPTIONAL 1 + +#define MULTIBOOT_LOAD_PREFERENCE_NONE 0 +#define MULTIBOOT_LOAD_PREFERENCE_LOW 1 +#define MULTIBOOT_LOAD_PREFERENCE_HIGH 2 + +#define MULTIBOOT_CONSOLE_FLAGS_CONSOLE_REQUIRED 1 +#define MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED 2 + +#ifndef ASM_FILE + +typedef unsigned char multiboot_uint8_t; +typedef unsigned short multiboot_uint16_t; +typedef unsigned int multiboot_uint32_t; +typedef unsigned long long multiboot_uint64_t; + +struct multiboot_header +{ + /* Must be MULTIBOOT_MAGIC - see above. */ + multiboot_uint32_t magic; + + /* ISA */ + multiboot_uint32_t architecture; + + /* Total header length. */ + multiboot_uint32_t header_length; + + /* The above fields plus this one must equal 0 mod 2^32. */ + multiboot_uint32_t checksum; +}; + +struct multiboot_header_tag +{ + multiboot_uint16_t type; + multiboot_uint16_t flags; + multiboot_uint32_t size; +}; + +struct multiboot_header_tag_information_request +{ + multiboot_uint16_t type; + multiboot_uint16_t flags; + multiboot_uint32_t size; + multiboot_uint32_t requests[0]; +}; + +struct multiboot_header_tag_address +{ + multiboot_uint16_t type; + multiboot_uint16_t flags; + multiboot_uint32_t size; + multiboot_uint32_t header_addr; + multiboot_uint32_t load_addr; + multiboot_uint32_t load_end_addr; + multiboot_uint32_t bss_end_addr; +}; + +struct multiboot_header_tag_entry_address +{ + multiboot_uint16_t type; + multiboot_uint16_t flags; + multiboot_uint32_t size; + multiboot_uint32_t entry_addr; +}; + +struct multiboot_header_tag_console_flags +{ + multiboot_uint16_t type; + multiboot_uint16_t flags; + multiboot_uint32_t size; + multiboot_uint32_t console_flags; +}; + +struct multiboot_header_tag_framebuffer +{ + multiboot_uint16_t type; + multiboot_uint16_t flags; + multiboot_uint32_t size; + multiboot_uint32_t width; + multiboot_uint32_t height; + multiboot_uint32_t depth; +}; + +struct multiboot_header_tag_module_align +{ + multiboot_uint16_t type; + multiboot_uint16_t flags; + multiboot_uint32_t size; +}; + +struct multiboot_header_tag_relocatable +{ + multiboot_uint16_t type; + multiboot_uint16_t flags; + multiboot_uint32_t size; + multiboot_uint32_t min_addr; + multiboot_uint32_t max_addr; + multiboot_uint32_t align; + multiboot_uint32_t preference; +}; + +struct multiboot_color +{ + multiboot_uint8_t red; + multiboot_uint8_t green; + multiboot_uint8_t blue; +}; + +struct multiboot_mmap_entry +{ + multiboot_uint64_t addr; + multiboot_uint64_t len; +#define MULTIBOOT_MEMORY_AVAILABLE 1 +#define MULTIBOOT_MEMORY_RESERVED 2 +#define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3 +#define MULTIBOOT_MEMORY_NVS 4 +#define MULTIBOOT_MEMORY_BADRAM 5 + multiboot_uint32_t type; + multiboot_uint32_t zero; +}; +typedef struct multiboot_mmap_entry multiboot_memory_map_t; + +struct multiboot_tag +{ + multiboot_uint32_t type; + multiboot_uint32_t size; +}; + +struct multiboot_tag_string +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + char string[0]; +}; + +struct multiboot_tag_module +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t mod_start; + multiboot_uint32_t mod_end; + char cmdline[0]; +}; + +struct multiboot_tag_basic_meminfo +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t mem_lower; + multiboot_uint32_t mem_upper; +}; + +struct multiboot_tag_bootdev +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t biosdev; + multiboot_uint32_t slice; + multiboot_uint32_t part; +}; + +struct multiboot_tag_mmap +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t entry_size; + multiboot_uint32_t entry_version; + struct multiboot_mmap_entry entries[0]; +}; + +struct multiboot_vbe_info_block +{ + multiboot_uint8_t external_specification[512]; +}; + +struct multiboot_vbe_mode_info_block +{ + multiboot_uint8_t external_specification[256]; +}; + +struct multiboot_tag_vbe +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + + multiboot_uint16_t vbe_mode; + multiboot_uint16_t vbe_interface_seg; + multiboot_uint16_t vbe_interface_off; + multiboot_uint16_t vbe_interface_len; + + struct multiboot_vbe_info_block vbe_control_info; + struct multiboot_vbe_mode_info_block vbe_mode_info; +}; + +struct multiboot_tag_framebuffer_common +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + + multiboot_uint64_t framebuffer_addr; + multiboot_uint32_t framebuffer_pitch; + multiboot_uint32_t framebuffer_width; + multiboot_uint32_t framebuffer_height; + multiboot_uint8_t framebuffer_bpp; +#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0 +#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1 +#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2 + multiboot_uint8_t framebuffer_type; + multiboot_uint16_t reserved; +}; + +struct multiboot_tag_framebuffer +{ + struct multiboot_tag_framebuffer_common common; + + union + { + struct + { + multiboot_uint16_t framebuffer_palette_num_colors; + struct multiboot_color framebuffer_palette[0]; + }; + struct + { + multiboot_uint8_t framebuffer_red_field_position; + multiboot_uint8_t framebuffer_red_mask_size; + multiboot_uint8_t framebuffer_green_field_position; + multiboot_uint8_t framebuffer_green_mask_size; + multiboot_uint8_t framebuffer_blue_field_position; + multiboot_uint8_t framebuffer_blue_mask_size; + }; + }; +}; + +struct multiboot_tag_elf_sections +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t num; + multiboot_uint32_t entsize; + multiboot_uint32_t shndx; + char sections[0]; +}; + +struct multiboot_tag_apm +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint16_t version; + multiboot_uint16_t cseg; + multiboot_uint32_t offset; + multiboot_uint16_t cseg_16; + multiboot_uint16_t dseg; + multiboot_uint16_t flags; + multiboot_uint16_t cseg_len; + multiboot_uint16_t cseg_16_len; + multiboot_uint16_t dseg_len; +}; + +struct multiboot_tag_efi32 +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t pointer; +}; + +struct multiboot_tag_efi64 +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint64_t pointer; +}; + +struct multiboot_tag_smbios +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint8_t major; + multiboot_uint8_t minor; + multiboot_uint8_t reserved[6]; + multiboot_uint8_t tables[0]; +}; + +struct multiboot_tag_old_acpi +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint8_t rsdp[0]; +}; + +struct multiboot_tag_new_acpi +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint8_t rsdp[0]; +}; + +struct multiboot_tag_network +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint8_t dhcpack[0]; +}; + +struct multiboot_tag_efi_mmap +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t descr_size; + multiboot_uint32_t descr_vers; + multiboot_uint8_t efi_mmap[0]; +}; + +struct multiboot_tag_efi32_ih +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t pointer; +}; + +struct multiboot_tag_efi64_ih +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint64_t pointer; +}; + +struct multiboot_tag_load_base_addr +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t load_base_addr; +}; + +#endif /* ! ASM_FILE */ + +#endif /* ! MULTIBOOT_HEADER */ diff --git a/include/x86/x86-linux.h b/include/x86/x86-linux.h new file mode 100644 index 0000000..9646102 --- /dev/null +++ b/include/x86/x86-linux.h @@ -0,0 +1,271 @@ +#ifndef X86_LINUX_H +#define X86_LINUX_H + +#define TENATIVE 0 /* Code that is tenatively correct but hasn't yet been officially accepted */ + +#define E820MAP 0x2d0 /* our map */ +#define E820NR 0x1e8 /* # entries in E820MAP */ + +#ifndef E820MAX +#define E820MAX 128 /* number of entries in E820MAP */ +#endif + +#ifndef ASSEMBLY + +#ifndef E820_RAM +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 +#define E820_PMEM 7 +#define E820_PRAM 12 +} __attribute__((packed)); +#endif + +/* FIXME expand on drive_info_)struct... */ +struct drive_info_struct { + uint8_t dummy[32]; +}; +struct sys_desc_table { + uint16_t length; + uint8_t table[30]; +}; + +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 */ +}; + +/* + * EDD stuff + */ + +#define EDD_MBR_SIG_MAX 16 +#define EDDMAXNR 6 /* number of edd_info structs starting at EDDBUF */ + +#define EDD_EXT_FIXED_DISK_ACCESS (1 << 0) +#define EDD_EXT_DEVICE_LOCKING_AND_EJECTING (1 << 1) +#define EDD_EXT_ENHANCED_DISK_DRIVE_SUPPORT (1 << 2) +#define EDD_EXT_64BIT_EXTENSIONS (1 << 3) + +#define EDD_DEVICE_PARAM_SIZE 74 + +struct edd_info { + uint8_t device; + uint8_t version; + uint16_t interface_support; + uint16_t legacy_max_cylinder; + uint8_t legacy_max_head; + uint8_t legacy_sectors_per_track; + uint8_t edd_device_params[EDD_DEVICE_PARAM_SIZE]; +} __attribute__ ((packed)); + +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 */ + uint16_t vesa_attributes; /* 0x34 */ + uint32_t capabilities; /* 0x36 */ + uint32_t ext_lfb_base; /* 0x3a */ + uint8_t reserved4[2]; /* 0x3e -- 0x3f reserved for future expansion */ + + struct apm_bios_info apm_bios_info; /* 0x40 */ + uint8_t reserved4_1[28]; /* 0x54 */ + uint64_t acpi_rsdp_addr; /* 0x70 */ + uint8_t reserved4_2[8]; /* 0x78 */ + struct drive_info_struct drive_info; /* 0x80 */ + struct sys_desc_table sys_desc_table; /* 0xa0 */ + uint32_t ext_ramdisk_image; /* 0xc0 */ + uint32_t ext_ramdisk_size; /* 0xc4 */ + uint32_t ext_cmd_line_ptr; /* 0xc8 */ + uint8_t reserved4_3[0x1c0 - 0xcc]; /* 0xe4 */ + uint8_t efi_info[32]; /* 0x1c0 */ + uint32_t alt_mem_k; /* 0x1e0 */ + uint8_t reserved5[4]; /* 0x1e4 */ + uint8_t e820_map_nr; /* 0x1e8 */ + uint8_t eddbuf_entries; /* 0x1e9 */ + uint8_t edd_mbr_sig_buf_entries; /* 0x1ea */ + uint8_t reserved6[6]; /* 0x1eb */ + uint8_t setup_sects; /* 0x1f1 */ + uint16_t mount_root_rdonly; /* 0x1f2 */ + uint16_t syssize; /* 0x1f4 */ + uint16_t swapdev; /* 0x1f6 */ + 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 */ + uint16_t rmode_switch_ip; /* 0x208 */ + uint16_t rmode_switch_cs; /* 0x20a */ + uint8_t reserved11[4]; /* 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_KEXEC 0x0D +#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 */ +#if TENATIVE + /* 2.04+ */ + uint16_t entry32_off; /* 0x230 */ + uint16_t internal_cmdline_off; /* 0x232 */ + uint32_t low_base; /* 0x234 */ + uint32_t low_memsz; /* 0x238 */ + uint32_t low_filesz; /* 0x23c */ + uint32_t real_base; /* 0x240 */ + uint32_t real_memsz; /* 0x244 */ + uint32_t real_filesz; /* 0x248 */ + uint32_t high_base; /* 0x24C */ + uint32_t high_memsz; /* 0x250 */ + uint32_t high_filesz; /* 0x254 */ + uint8_t reserved15[0x2d0 - 0x258]; /* 0x258 */ +#else + /* 2.04+ */ + uint32_t kernel_alignment; /* 0x230 */ + uint8_t relocatable_kernel; /* 0x234 */ + uint8_t min_alignment; /* 0x235 */ + uint16_t xloadflags; /* 0x236 */ + uint32_t cmdline_size; /* 0x238 */ + uint32_t hardware_subarch; /* 0x23C */ + uint64_t hardware_subarch_data; /* 0x240 */ + uint32_t payload_offset; /* 0x248 */ + uint32_t payload_length; /* 0x24C */ + uint64_t setup_data; /* 0x250 */ + uint64_t pref_address; /* 0x258 */ + uint32_t init_size; /* 0x260 */ + uint32_t handover_offset; /* 0x264 */ + uint8_t reserved16[0x290 - 0x268]; /* 0x268 */ + uint32_t edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */ +#endif + struct e820entry e820_map[E820MAX]; /* 0x2d0 */ + uint8_t _pad8[48]; /* 0xcd0 */ + struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */ + /* 0xeec */ +#define COMMAND_LINE_SIZE 2048 +} __attribute__((packed)); + +struct x86_linux_faked_param_header { + struct x86_linux_param_header hdr; /* 0x00 */ + uint8_t command_line[COMMAND_LINE_SIZE]; /* 0x1000 */ + // uint8_t reserved18[0x200]; /* 0x1800 - 0x2000 */ +}; + +struct x86_linux_header { + uint8_t reserved1[0xc0]; /* 0x000 */ + uint32_t ext_ramdisk_image; /* 0x0c0 */ + uint32_t ext_ramdisk_size; /* 0x0c4 */ + uint32_t ext_cmd_line_ptr; /* 0x0c8 */ + uint8_t reserved1_1[0x1f1-0xcc]; /* 0x0cc */ + uint8_t setup_sects; /* 0x1f1 */ + uint16_t root_flags; /* 0x1f2 */ + uint32_t syssize; /* 0x1f4 */ + uint16_t ram_size; /* 0x1f8 */ + uint16_t vid_mode; /* 0x1fa */ + uint16_t root_dev; /* 0x1fc */ + uint16_t boot_sector_magic; /* 0x1fe */ + /* 2.00+ */ + uint16_t jump; /* 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 */ + uint32_t bootsect_kludge; /* 0x220 */ + /* 2.01+ */ + uint16_t heap_end_ptr; /* 0x224 */ + uint8_t ext_loader_ver; /* 0x226 */ + uint8_t ext_loader_type; /* 0x227 */ + /* 2.02+ */ + uint32_t cmd_line_ptr; /* 0x228 */ + /* 2.03+ */ + uint32_t initrd_addr_max; /* 0x22c */ + + uint32_t kernel_alignment; /* 0x230 */ + uint8_t relocatable_kernel; /* 0x234 */ + uint8_t min_alignment; /* 0x235 */ + uint16_t xloadflags; /* 0x236 */ + uint32_t cmdline_size; /* 0x238 */ + uint32_t hardware_subarch; /* 0x23C */ + uint64_t hardware_subarch_data; /* 0x240 */ + uint32_t payload_offset; /* 0x248 */ + uint32_t payload_size; /* 0x24C */ + uint64_t setup_data; /* 0x250 */ + uint64_t pref_address; /* 0x258 */ + uint32_t init_size; /* 0x260 */ + uint32_t handover_offset; /* 0x264 */ +} __attribute__((packed)); + +#endif /* ASSEMBLY */ + +#define DEFAULT_INITRD_ADDR_MAX 0x37FFFFFF +#define DEFAULT_BZIMAGE_ADDR_MAX 0x37FFFFFF + +#endif /* X86_LINUX_H */ |