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