| // SPDX-License-Identifier: GPL-2.0 | |
| /* | |
| * debug_kinfo.h - backup kernel information for bootloader usage | |
| * | |
| * Copyright 2021 Google LLC | |
| */ | |
| #ifndef DEBUG_KINFO_H | |
| #define DEBUG_KINFO_H | |
| #include <linux/utsname.h> | |
| #define BUILD_INFO_LEN 256 | |
| #define DEBUG_KINFO_MAGIC 0xCCEEDDFF | |
| /* | |
| * Header structure must be byte-packed, since the table is provided to | |
| * bootloader. | |
| */ | |
| struct kernel_info { | |
| /* For kallsyms */ | |
| __u8 enabled_all; | |
| __u8 enabled_base_relative; | |
| __u8 enabled_absolute_percpu; | |
| __u8 enabled_cfi_clang; | |
| __u32 num_syms; | |
| __u16 name_len; | |
| __u16 bit_per_long; | |
| __u16 module_name_len; | |
| __u16 symbol_len; | |
| __u64 _addresses_pa; | |
| __u64 _relative_pa; | |
| __u64 _stext_pa; | |
| __u64 _etext_pa; | |
| __u64 _sinittext_pa; | |
| __u64 _einittext_pa; | |
| __u64 _end_pa; | |
| __u64 _offsets_pa; | |
| __u64 _names_pa; | |
| __u64 _token_table_pa; | |
| __u64 _token_index_pa; | |
| __u64 _markers_pa; | |
| /* For frame pointer */ | |
| __u32 thread_size; | |
| /* For virt_to_phys */ | |
| __u64 swapper_pg_dir_pa; | |
| /* For linux banner */ | |
| __u8 last_uts_release[__NEW_UTS_LEN]; | |
| /* Info of running build */ | |
| __u8 build_info[BUILD_INFO_LEN]; | |
| /* For module kallsyms */ | |
| __u32 enabled_modules_tree_lookup; | |
| __u32 mod_mem_offset; | |
| __u32 mod_kallsyms_offset; | |
| } __packed; | |
| struct kernel_all_info { | |
| __u32 magic_number; | |
| __u32 combined_checksum; | |
| struct kernel_info info; | |
| } __packed; | |
| #endif // DEBUG_KINFO_H |