diff options
Diffstat (limited to 'coreboot_tables.h')
| -rw-r--r-- | coreboot_tables.h | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/coreboot_tables.h b/coreboot_tables.h deleted file mode 100644 index e1f63a81d..000000000 --- a/coreboot_tables.h +++ /dev/null @@ -1,146 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2002 Linux Networx - * (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx) - * Copyright (C) 2005-2007 coresystems GmbH - * - * 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; version 2 of the License. - * - * 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. - */ - -#ifndef COREBOOT_TABLES_H -#define COREBOOT_TABLES_H - -#include <stdint.h> - -/* The coreboot 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 querying 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/correctness 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 This should remove much of the - * long term compatibility burden as table entries which are - * irrelevant or have been replaced by better alternatives may be - * dropped.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 expedite to include extra - * table entries and be backwards compatible, but it is not required. - */ - -/* Since coreboot is usually compiled 32bit, gcc will align 64bit - * types to 32bit boundaries. If the coreboot table is dumped on a - * 64bit system, a uint64_t would be aligned to 64bit boundaries, - * breaking the table format. - * - * lb_uint64 will keep 64bit coreboot table values aligned to 32bit - * to ensure compatibility. They can be accessed with the two functions - * below: unpack_lb64() and pack_lb64() - * - * See also: util/lbtdump/lbtdump.c - */ - -struct lb_uint64 { - uint32_t lo; - uint32_t hi; -}; - -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 environment 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 environment 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 { - struct lb_uint64 start; - struct lb_uint64 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]; -}; - -#define LB_TAG_FORWARD 0x0011 -struct lb_forward { - uint32_t tag; - uint32_t size; - uint64_t forward; -}; - -#endif /* COREBOOT_TABLES_H */ |