diff options
Diffstat (limited to 'src/include/boot')
| -rw-r--r-- | src/include/boot/elf.h | 401 | ||||
| -rw-r--r-- | src/include/boot/elf_boot.h | 89 | ||||
| -rw-r--r-- | src/include/boot/linuxbios_tables.h | 183 | ||||
| -rw-r--r-- | src/include/boot/tables.h | 9 |
4 files changed, 682 insertions, 0 deletions
diff --git a/src/include/boot/elf.h b/src/include/boot/elf.h new file mode 100644 index 0000000000..3503388078 --- /dev/null +++ b/src/include/boot/elf.h @@ -0,0 +1,401 @@ +#ifndef ELF_H +#define ELF_H + +/* Standard ELF types. */ + +#include <stdint.h> +#include <stddef.h> +#include <arch/boot/boot.h> + +/* Type for a 16-bit quantity. */ +typedef uint16_t Elf32_Half; +typedef uint16_t Elf64_Half; + +/* Types for signed and unsigned 32-bit quantities. */ +typedef uint32_t Elf32_Word; +typedef int32_t Elf32_Sword; +typedef uint32_t Elf64_Word; +typedef int32_t Elf64_Sword; + +/* Types for signed and unsigned 64-bit quantities. */ +typedef uint64_t Elf32_Xword; +typedef int64_t Elf32_Sxword; +typedef uint64_t Elf64_Xword; +typedef int64_t Elf64_Sxword; + +/* Type of addresses. */ +typedef uint32_t Elf32_Addr; +typedef uint64_t Elf64_Addr; + +/* Type of file offsets. */ +typedef uint32_t Elf32_Off; +typedef uint64_t Elf64_Off; + +/* Type for section indices, which are 16-bit quantities. */ +typedef uint16_t Elf32_Section; +typedef uint16_t Elf64_Section; + +/* Type of symbol indices. */ +typedef uint32_t Elf32_Symndx; +typedef uint64_t Elf64_Symndx; + + +/* The ELF file header. This appears at the start of every ELF file. */ + +#define EI_NIDENT (16) + +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf32_Half e_type; /* Object file type */ + Elf32_Half e_machine; /* Architecture */ + Elf32_Word e_version; /* Object file version */ + Elf32_Addr e_entry; /* Entry point virtual address */ + Elf32_Off e_phoff; /* Program header table file offset */ + Elf32_Off e_shoff; /* Section header table file offset */ + Elf32_Word e_flags; /* Processor-specific flags */ + Elf32_Half e_ehsize; /* ELF header size in bytes */ + Elf32_Half e_phentsize; /* Program header table entry size */ + Elf32_Half e_phnum; /* Program header table entry count */ + Elf32_Half e_shentsize; /* Section header table entry size */ + Elf32_Half e_shnum; /* Section header table entry count */ + Elf32_Half e_shstrndx; /* Section header string table index */ +} Elf32_Ehdr; + +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf64_Half e_type; /* Object file type */ + Elf64_Half e_machine; /* Architecture */ + Elf64_Word e_version; /* Object file version */ + Elf64_Addr e_entry; /* Entry point virtual address */ + Elf64_Off e_phoff; /* Program header table file offset */ + Elf64_Off e_shoff; /* Section header table file offset */ + Elf64_Word e_flags; /* Processor-specific flags */ + Elf64_Half e_ehsize; /* ELF header size in bytes */ + Elf64_Half e_phentsize; /* Program header table entry size */ + Elf64_Half e_phnum; /* Program header table entry count */ + Elf64_Half e_shentsize; /* Section header table entry size */ + Elf64_Half e_shnum; /* Section header table entry count */ + Elf64_Half e_shstrndx; /* Section header string table index */ +} Elf64_Ehdr; + +/* Fields in the e_ident array. The EI_* macros are indices into the + array. The macros under each EI_* macro are the values the byte + may have. */ + +#define EI_MAG0 0 /* File identification byte 0 index */ +#define ELFMAG0 0x7f /* Magic number byte 0 */ + +#define EI_MAG1 1 /* File identification byte 1 index */ +#define ELFMAG1 'E' /* Magic number byte 1 */ + +#define EI_MAG2 2 /* File identification byte 2 index */ +#define ELFMAG2 'L' /* Magic number byte 2 */ + +#define EI_MAG3 3 /* File identification byte 3 index */ +#define ELFMAG3 'F' /* Magic number byte 3 */ + +/* Conglomeration of the identification bytes, for easy testing as a word. */ +#define ELFMAG "\177ELF" +#define SELFMAG 4 + +#define EI_CLASS 4 /* File class byte index */ +#define ELFCLASSNONE 0 /* Invalid class */ +#define ELFCLASS32 1 /* 32-bit objects */ +#define ELFCLASS64 2 /* 64-bit objects */ +#define ELFCLASSNUM 3 + +#define EI_DATA 5 /* Data encoding byte index */ +#define ELFDATANONE 0 /* Invalid data encoding */ +#define ELFDATA2LSB 1 /* 2's complement, little endian */ +#define ELFDATA2MSB 2 /* 2's complement, big endian */ +#define ELFDATANUM 3 + +#define EI_VERSION 6 /* File version byte index */ + /* Value must be EV_CURRENT */ + +#define EI_OSABI 7 /* OS ABI identification */ +#define ELFOSABI_SYSV 0 /* UNIX System V ABI */ +#define ELFOSABI_HPUX 1 /* HP-UX */ +#define ELFOSABI_ARM 97 /* ARM */ +#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ + +#define EI_ABIVERSION 8 /* ABI version */ + +#define EI_PAD 9 /* Byte index of padding bytes */ + +/* Legal values for e_type (object file type). */ + +#define ET_NONE 0 /* No file type */ +#define ET_REL 1 /* Relocatable file */ +#define ET_EXEC 2 /* Executable file */ +#define ET_DYN 3 /* Shared object file */ +#define ET_CORE 4 /* Core file */ +#define ET_NUM 5 /* Number of defined types */ +#define ET_LOPROC 0xff00 /* Processor-specific */ +#define ET_HIPROC 0xffff /* Processor-specific */ + +/* Legal values for e_machine (architecture). */ + +#define EM_NONE 0 /* No machine */ +#define EM_M32 1 /* AT&T WE 32100 */ +#define EM_SPARC 2 /* SUN SPARC */ +#define EM_386 3 /* Intel 80386 */ +#define EM_68K 4 /* Motorola m68k family */ +#define EM_88K 5 /* Motorola m88k family */ +#define EM_486 6 /* Intel 80486 */ +#define EM_860 7 /* Intel 80860 */ +#define EM_MIPS 8 /* MIPS R3000 big-endian */ +#define EM_S370 9 /* Amdahl */ +#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */ +#define EM_RS6000 11 /* RS6000 */ + +#define EM_PARISC 15 /* HPPA */ +#define EM_nCUBE 16 /* nCUBE */ +#define EM_VPP500 17 /* Fujitsu VPP500 */ +#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ +#define EM_960 19 /* Intel 80960 */ +#define EM_PPC 20 /* PowerPC */ + +#define EM_V800 36 /* NEC V800 series */ +#define EM_FR20 37 /* Fujitsu FR20 */ +#define EM_RH32 38 /* TRW RH32 */ +#define EM_MMA 39 /* Fujitsu MMA */ +#define EM_ARM 40 /* ARM */ +#define EM_FAKE_ALPHA 41 /* Digital Alpha */ +#define EM_SH 42 /* Hitachi SH */ +#define EM_SPARCV9 43 /* SPARC v9 64-bit */ +#define EM_TRICORE 44 /* Siemens Tricore */ +#define EM_ARC 45 /* Argonaut RISC Core */ +#define EM_H8_300 46 /* Hitachi H8/300 */ +#define EM_H8_300H 47 /* Hitachi H8/300H */ +#define EM_H8S 48 /* Hitachi H8S */ +#define EM_H8_500 49 /* Hitachi H8/500 */ +#define EM_IA_64 50 /* Intel Merced */ +#define EM_MIPS_X 51 /* Stanford MIPS-X */ +#define EM_COLDFIRE 52 /* Motorola Coldfire */ +#define EM_68HC12 53 /* Motorola M68HC12 */ +#define EM_NUM 54 + +/* If it is necessary to assign new unofficial EM_* values, please + pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the + chances of collision with official or non-GNU unofficial values. */ + +#define EM_ALPHA 0x9026 + +/* Legal values for e_version (version). */ + +#define EV_NONE 0 /* Invalid ELF version */ +#define EV_CURRENT 1 /* Current version */ +#define EV_NUM 2 + + +/* Program segment header. */ + +typedef struct +{ + Elf32_Word p_type; /* Segment type */ + Elf32_Off p_offset; /* Segment file offset */ + Elf32_Addr p_vaddr; /* Segment virtual address */ + Elf32_Addr p_paddr; /* Segment physical address */ + Elf32_Word p_filesz; /* Segment size in file */ + Elf32_Word p_memsz; /* Segment size in memory */ + Elf32_Word p_flags; /* Segment flags */ + Elf32_Word p_align; /* Segment alignment */ +} Elf32_Phdr; + +typedef struct +{ + Elf64_Word p_type; /* Segment type */ + Elf64_Word p_flags; /* Segment flags */ + Elf64_Off p_offset; /* Segment file offset */ + Elf64_Addr p_vaddr; /* Segment virtual address */ + Elf64_Addr p_paddr; /* Segment physical address */ + Elf64_Xword p_filesz; /* Segment size in file */ + Elf64_Xword p_memsz; /* Segment size in memory */ + Elf64_Xword p_align; /* Segment alignment */ +} Elf64_Phdr; + +/* Legal values for p_type (segment type). */ + +#define PT_NULL 0 /* Program header table entry unused */ +#define PT_LOAD 1 /* Loadable program segment */ +#define PT_DYNAMIC 2 /* Dynamic linking information */ +#define PT_INTERP 3 /* Program interpreter */ +#define PT_NOTE 4 /* Auxiliary information */ +#define PT_SHLIB 5 /* Reserved */ +#define PT_PHDR 6 /* Entry for header table itself */ +#define PT_NUM 7 /* Number of defined types. */ +#define PT_LOOS 0x60000000 /* Start of OS-specific */ +#define PT_HIOS 0x6fffffff /* End of OS-specific */ +#define PT_LOPROC 0x70000000 /* Start of processor-specific */ +#define PT_HIPROC 0x7fffffff /* End of processor-specific */ + +/* Legal values for p_flags (segment flags). */ + +#define PF_X (1 << 0) /* Segment is executable */ +#define PF_W (1 << 1) /* Segment is writable */ +#define PF_R (1 << 2) /* Segment is readable */ +#define PF_MASKPROC 0xf0000000 /* Processor-specific */ + + +/* Note section contents. Each entry in the note section begins with + a header of a fixed form. */ + +typedef struct +{ + Elf32_Word n_namesz; /* Length of the note's name. */ + Elf32_Word n_descsz; /* Length of the note's descriptor. */ + Elf32_Word n_type; /* Type of the note. */ +} Elf32_Nhdr; + +typedef struct +{ + Elf64_Word n_namesz; /* Length of the note's name. */ + Elf64_Word n_descsz; /* Length of the note's descriptor. */ + Elf64_Word n_type; /* Type of the note. */ +} Elf64_Nhdr; + +/* Known names of notes. */ + +/* Solaris entries in the note section have this name. */ +#define ELF_NOTE_SOLARIS "SUNW Solaris" + +/* Note entries for GNU systems have this name. */ +#define ELF_NOTE_GNU "GNU" + + +/* Defined types of notes for Solaris. */ + +/* Value of descriptor (one word) is desired pagesize for the binary. */ +#define ELF_NOTE_PAGESIZE_HINT 1 + + +/* Defined note types for GNU systems. */ + +/* ABI information. The descriptor consists of words: + word 0: OS descriptor + word 1: major version of the ABI + word 2: minor version of the ABI + word 3: subminor version of the ABI +*/ +#define ELF_NOTE_ABI 1 + +/* Known OSes. These value can appear in word 0 of an ELF_NOTE_ABI + note section entry. */ +#define ELF_NOTE_OS_LINUX 0 +#define ELF_NOTE_OS_GNU 1 +#define ELF_NOTE_OS_SOLARIS2 2 + + +/* Motorola 68k specific definitions. */ + +/* Intel 80386 specific definitions. */ + +/* SUN SPARC specific definitions. */ + +/* Values for Elf64_Ehdr.e_flags. */ + +#define EF_SPARCV9_MM 3 +#define EF_SPARCV9_TSO 0 +#define EF_SPARCV9_PSO 1 +#define EF_SPARCV9_RMO 2 +#define EF_SPARC_EXT_MASK 0xFFFF00 +#define EF_SPARC_SUN_US1 0x000200 +#define EF_SPARC_HAL_R1 0x000400 + +/* MIPS R3000 specific definitions. */ + +/* Legal values for e_flags field of Elf32_Ehdr. */ + +#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */ +#define EF_MIPS_PIC 2 /* Contains PIC code */ +#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */ +#define EF_MIPS_XGOT 8 +#define EF_MIPS_64BIT_WHIRL 16 +#define EF_MIPS_ABI2 32 +#define EF_MIPS_ABI_ON32 64 +#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */ + +/* Legal values for MIPS architecture level. */ + +#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ +#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ +#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ +#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ +#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ + +/* Legal values for p_type field of Elf32_Phdr. */ + +#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */ +#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */ +#define PT_MIPS_OPTIONS 0x70000002 + +/* Special program header types. */ + +#define PF_MIPS_LOCAL 0x10000000 + + +/* HPPA specific definitions. */ + +/* Legal values for e_flags field of Elf32_Ehdr. */ + +#define EF_PARISC_TRAPNL 1 /* Trap nil pointer dereference. */ +#define EF_PARISC_EXT 2 /* Program uses arch. extensions. */ +#define EF_PARISC_ARCH 0xffff0000 /* Architecture version. */ +/* Defined values are: + 0x020b PA-RISC 1.0 big-endian + 0x0210 PA-RISC 1.1 big-endian + 0x028b PA-RISC 1.0 little-endian + 0x0290 PA-RISC 1.1 little-endian +*/ + + +/* Alpha specific definitions. */ + +/* Legal values for e_flags field of Elf64_Ehdr. */ + +#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */ +#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */ + + +/* PowerPC specific declarations */ + +/* ARM specific declarations */ + +/* Processor specific flags for the ELF header e_flags field. */ +#define EF_ARM_RELEXEC 0x01 +#define EF_ARM_HASENTRY 0x02 +#define EF_ARM_INTERWORK 0x04 +#define EF_ARM_APCS_26 0x08 +#define EF_ARM_APCS_FLOAT 0x10 +#define EF_ARM_PIC 0x20 +#define EF_ALIGN8 0x40 /* 8-bit structure alignment is in use */ +#define EF_NEW_ABI 0x80 +#define EF_OLD_ABI 0x100 + +/* ARM-specific program header flags */ +#define PF_ARM_SB 0x10000000 /* Segment contains the location + addressed by the static base */ + +#if ELF_CLASS == ELFCLASS32 +typedef Elf32_Ehdr Elf_ehdr; +typedef Elf32_Phdr Elf_phdr; +#endif + +#if ELF_CLASS == ELFCLASS64 +typedef Elf64_Ehdr Elf_ehdr; +typedef Elf64_Phdr Elf_phdr; +#endif + +extern int elf_check_arch(Elf_ehdr *ehdr); +extern void jmp_to_elf_entry(void *entry, unsigned long buffer); +struct lb_memory; +extern int elfboot(struct lb_memory *mem); + +#define FIRMWARE_TYPE "LinuxBIOS" +#define BOOTLOADER "elfboot" +#define BOOTLOADER_VERSION "1.3" + +#endif /* elf.h */ diff --git a/src/include/boot/elf_boot.h b/src/include/boot/elf_boot.h new file mode 100644 index 0000000000..ee6750d293 --- /dev/null +++ b/src/include/boot/elf_boot.h @@ -0,0 +1,89 @@ +#ifndef ELF_BOOT_H +#define ELF_BOOT_H + +#include <stdint.h> + +/* This defines the structure of a table of parameters useful for ELF + * bootable images. These parameters are all passed and generated + * by the bootloader to the booted image. For simplicity and + * consistency the Elf Note format is reused. + * + * All of the information must be Position Independent Data. + * That is it must be safe to relocate the whole ELF boot parameter + * block without changing the meaning or correctnes of the data. + * Additionally it must be safe to permute the order of the ELF notes + * to any possible permutation without changing the meaning or correctness + * of the data. + * + */ + +#define ELF_HEAD_SIZE (8*1024) +#define ELF_BOOT_MAGIC 0x0E1FB007 + +typedef uint16_t Elf_Half; +typedef uint32_t Elf_Word; +typedef uint64_t Elf_Xword; + +typedef struct +{ + Elf_Word b_signature; /* "0x0E1FB007" */ + Elf_Word b_size; + Elf_Half b_checksum; + Elf_Half b_records; +} Elf_Bhdr; + +typedef struct +{ + Elf_Word n_namesz; /* Length of the note's name. */ + Elf_Word n_descsz; /* Length of the note's descriptor. */ + Elf_Word n_type; /* Type of the note. */ +} Elf_Nhdr; + + +/* For standard notes n_namesz must be zero */ +/* All of the following standard note types provide a single null + * terminated string in the descriptor. + */ +#define EBN_FIRMWARE_TYPE 0x00000001 +/* On platforms that support multiple classes of firmware this field + * specifies the class of firmware you are loaded under. + */ +#define EBN_BOOTLOADER_NAME 0x00000002 +/* This specifies just the name of the bootloader for easy comparison */ +#define EBN_BOOTLOADER_VERSION 0x00000003 +/* This specifies the version of the bootlader */ +#define EBN_COMMAND_LINE 0x00000004 +/* This specifies a command line that can be set by user interaction, + * and is provided as a free form string to the loaded image. + */ + + +/* Standardized Elf image notes for booting... The name for all of these is ELFBoot */ + +#define ELF_NOTE_BOOT "ELFBoot" + +#define EIN_PROGRAM_NAME 0x00000001 +/* The program in this ELF file */ +#define EIN_PROGRAM_VERSION 0x00000002 +/* The version of the program in this ELF file */ +#define EIN_PROGRAM_CHECKSUM 0x00000003 +/* ip style checksum of the memory image. */ + + +/* Linux image notes for booting... The name for all of these is Linux */ + +#define LINUX_NOTE_BOOT "Linux" + +#define LIN_COMMAND_LINE 0x00000001 +/* The command line to pass to the loaded kernel. */ +#define LIN_ROOT_DEV 0x00000002 +/* The root dev to pass to the loaded kernel. */ +#define LIN_RAMDISK_FLAGS 0x00000003 +/* Various old ramdisk flags */ +#define LIN_INITRD_START 0x00000004 +/* Start of the ramdisk in bytes */ +#define LIN_INITRD_SIZE 0x00000005 +/* Size of the ramdisk in bytes */ + + +#endif /* ELF_BOOT_H */ diff --git a/src/include/boot/linuxbios_tables.h b/src/include/boot/linuxbios_tables.h new file mode 100644 index 0000000000..5f37993807 --- /dev/null +++ b/src/include/boot/linuxbios_tables.h @@ -0,0 +1,183 @@ +#ifndef LINUXBIOS_TABLES_H +#define LINUXBIOS_TABLES_H + +#include <stdint.h> + +/* The linuxbios table information is for conveying information + * from the firmware to the loaded OS image. Primarily this + * is expected to be information that cannot be discovered by + * other means, such as quering the hardware directly. + * + * All of the information should be Position Independent Data. + * That is it should be safe to relocated any of the information + * without it's meaning/correctnes changing. For table that + * can reasonably be used on multiple architectures the data + * size should be fixed. This should ease the transition between + * 32 bit and 64 bit architectures etc. + * + * The completeness test for the information in this table is: + * - Can all of the hardware be detected? + * - Are the per motherboard constants available? + * - Is there enough to allow a kernel to run that was written before + * a particular motherboard is constructed? (Assuming the kernel + * has drivers for all of the hardware but it does not have + * assumptions on how the hardware is connected together). + * + * With this test it should be straight forward to determine if a + * table entry is required or not. This should remove much of the + * long term compatibility burden as table entries which are + * irrelevant or have been replaced by better alternatives may be + * dropped. Of course it is polite and expidite to include extra + * table entries and be backwards compatible, but it is not required. + */ + + +struct lb_header +{ + uint8_t signature[4]; /* LBIO */ + uint32_t header_bytes; + uint32_t header_checksum; + uint32_t table_bytes; + uint32_t table_checksum; + uint32_t table_entries; +}; + +/* Every entry in the boot enviroment list will correspond to a boot + * info record. Encoding both type and size. The type is obviously + * so you can tell what it is. The size allows you to skip that + * boot enviroment record if you don't know what it easy. This allows + * forward compatibility with records not yet defined. + */ +struct lb_record { + uint32_t tag; /* tag ID */ + uint32_t size; /* size of record (in bytes) */ +}; + +#define LB_TAG_UNUSED 0x0000 + +#define LB_TAG_MEMORY 0x0001 + +struct lb_memory_range { + uint64_t start; + uint64_t size; + uint32_t type; +#define LB_MEM_RAM 1 /* Memory anyone can use */ +#define LB_MEM_RESERVED 2 /* Don't use this memory region */ +#define LB_MEM_TABLE 16 /* Ram configuration tables are kept in */ + +}; + +struct lb_memory { + uint32_t tag; + uint32_t size; + struct lb_memory_range map[0]; +}; + +#define LB_TAG_HWRPB 0x0002 +struct lb_hwrpb { + uint32_t tag; + uint32_t size; + uint64_t hwrpb; +}; + +#define LB_TAG_MAINBOARD 0x0003 +struct lb_mainboard { + uint32_t tag; + uint32_t size; + uint8_t vendor_idx; + uint8_t part_number_idx; + uint8_t strings[0]; +}; + +#define LB_TAG_VERSION 0x0004 +#define LB_TAG_EXTRA_VERSION 0x0005 +#define LB_TAG_BUILD 0x0006 +#define LB_TAG_COMPILE_TIME 0x0007 +#define LB_TAG_COMPILE_BY 0x0008 +#define LB_TAG_COMPILE_HOST 0x0009 +#define LB_TAG_COMPILE_DOMAIN 0x000a +#define LB_TAG_COMPILER 0x000b +#define LB_TAG_LINKER 0x000c +#define LB_TAG_ASSEMBLER 0x000d +struct lb_string { + uint32_t tag; + uint32_t size; + uint8_t string[0]; +}; + +/* The following structures are for the cmos definitions table */ +#define LB_TAG_CMOS_OPTION_TABLE 200 +/* cmos header record */ +struct cmos_option_table { + uint32_t tag; /* CMOS definitions table type */ + uint32_t size; /* size of the entire table */ + uint32_t header_length; /* length of header */ +}; + +/* cmos entry record + This record is variable length. The name field may be + shorter than CMOS_MAX_NAME_LENGTH. The entry may start + anywhere in the byte, but can not span bytes unless it + starts at the beginning of the byte and the length is + fills complete bytes. +*/ +#define LB_TAG_OPTION 201 +struct cmos_entries { + uint32_t tag; /* entry type */ + uint32_t size; /* length of this record */ + uint32_t bit; /* starting bit from start of image */ + uint32_t length; /* length of field in bits */ + uint32_t config; /* e=enumeration, h=hex, r=reserved */ + uint32_t config_id; /* a number linking to an enumeration record */ +#define CMOS_MAX_NAME_LENGTH 32 + uint8_t name[CMOS_MAX_NAME_LENGTH]; /* name of entry in ascii, + variable length int aligned */ +}; + + +/* cmos enumerations record + This record is variable length. The text field may be + shorter than CMOS_MAX_TEXT_LENGTH. +*/ +#define LB_TAG_OPTION_ENUM 202 +struct cmos_enums { + uint32_t tag; /* enumeration type */ + uint32_t size; /* length of this record */ + uint32_t config_id; /* a number identifying the config id */ + uint32_t value; /* the value associated with the text */ +#define CMOS_MAX_TEXT_LENGTH 32 + uint8_t text[CMOS_MAX_TEXT_LENGTH]; /* enum description in ascii, + variable length int aligned */ +}; + +/* cmos defaults record + This record contains default settings for the cmos ram. +*/ +#define LB_TAG_OPTION_DEFAULTS 203 +struct cmos_defaults { + uint32_t tag; /* default type */ + uint32_t size; /* length of this record */ + uint32_t name_length; /* length of the following name field */ + uint8_t name[CMOS_MAX_NAME_LENGTH]; /* name identifying the default */ +#define CMOS_IMAGE_BUFFER_SIZE 128 + uint8_t default_set[CMOS_IMAGE_BUFFER_SIZE]; /* default settings */ +}; + +#define LB_TAG_OPTION_CHECKSUM 204 +struct cmos_checksum { + uint32_t tag; + uint32_t size; + /* In practice everything is byte aligned, but things are measured + * in bits to be consistent. + */ + uint32_t range_start; /* First bit that is checksummed (byte aligned) */ + uint32_t range_end; /* Last bit that is checksummed (byte aligned) */ + uint32_t location; /* First bit of the checksum (byte aligned) */ + uint32_t type; /* Checksum algorithm that is used */ +#define CHECKSUM_NONE 0 +#define CHECKSUM_PCBIOS 1 +}; + + + +#endif /* LINUXBIOS_TABLES_H */ diff --git a/src/include/boot/tables.h b/src/include/boot/tables.h new file mode 100644 index 0000000000..618c32ef94 --- /dev/null +++ b/src/include/boot/tables.h @@ -0,0 +1,9 @@ +#ifndef BOOT_TABLES_H +#define BOOT_TABLES_H + +#include <mem.h> +#include <boot/linuxbios_tables.h> + +struct lb_memory *write_tables(struct mem_range *mem, unsigned long *processor_map); + +#endif /* BOOT_TABLES_H */ |