1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2013 - 2017 Linaro, Ltd. 4 * Copyright (C) 2013, 2014 Red Hat, Inc. 5 */ 6 7#include <linux/pe.h> 8#include <linux/sizes.h> 9 10 .macro __EFI_PE_HEADER 11 .long PE_MAGIC 12coff_header: 13 .short IMAGE_FILE_MACHINE_ARM64 // Machine 14 .short section_count // NumberOfSections 15 .long 0 // TimeDateStamp 16 .long 0 // PointerToSymbolTable 17 .long 0 // NumberOfSymbols 18 .short section_table - optional_header // SizeOfOptionalHeader 19 .short IMAGE_FILE_DEBUG_STRIPPED | \ 20 IMAGE_FILE_EXECUTABLE_IMAGE | \ 21 IMAGE_FILE_LINE_NUMS_STRIPPED // Characteristics 22 23optional_header: 24 .short PE_OPT_MAGIC_PE32PLUS // PE32+ format 25 .byte 0x02 // MajorLinkerVersion 26 .byte 0x14 // MinorLinkerVersion 27 .long __initdata_begin - efi_header_end // SizeOfCode 28 .long __pecoff_data_size // SizeOfInitializedData 29 .long 0 // SizeOfUninitializedData 30 .long __efistub_efi_pe_entry - _head // AddressOfEntryPoint 31 .long efi_header_end - _head // BaseOfCode 32 33extra_header_fields: 34 .quad 0 // ImageBase 35 .long SEGMENT_ALIGN // SectionAlignment 36 .long PECOFF_FILE_ALIGNMENT // FileAlignment 37 .short 0 // MajorOperatingSystemVersion 38 .short 0 // MinorOperatingSystemVersion 39 .short LINUX_EFISTUB_MAJOR_VERSION // MajorImageVersion 40 .short LINUX_EFISTUB_MINOR_VERSION // MinorImageVersion 41 .short 0 // MajorSubsystemVersion 42 .short 0 // MinorSubsystemVersion 43 .long 0 // Win32VersionValue 44 45 .long _end - _head // SizeOfImage 46 47 // Everything before the kernel image is considered part of the header 48 .long efi_header_end - _head // SizeOfHeaders 49 .long 0 // CheckSum 50 .short IMAGE_SUBSYSTEM_EFI_APPLICATION // Subsystem 51 .short 0 // DllCharacteristics 52 .quad 0 // SizeOfStackReserve 53 .quad 0 // SizeOfStackCommit 54 .quad 0 // SizeOfHeapReserve 55 .quad 0 // SizeOfHeapCommit 56 .long 0 // LoaderFlags 57 .long (section_table - .) / 8 // NumberOfRvaAndSizes 58 59 .quad 0 // ExportTable 60 .quad 0 // ImportTable 61 .quad 0 // ResourceTable 62 .quad 0 // ExceptionTable 63 .quad 0 // CertificationTable 64 .quad 0 // BaseRelocationTable 65 66#ifdef CONFIG_DEBUG_EFI 67 .long efi_debug_table - _head // DebugTable 68 .long efi_debug_table_size 69#endif 70 71 // Section table 72section_table: 73 .ascii ".text\0\0\0" 74 .long __initdata_begin - efi_header_end // VirtualSize 75 .long efi_header_end - _head // VirtualAddress 76 .long __initdata_begin - efi_header_end // SizeOfRawData 77 .long efi_header_end - _head // PointerToRawData 78 79 .long 0 // PointerToRelocations 80 .long 0 // PointerToLineNumbers 81 .short 0 // NumberOfRelocations 82 .short 0 // NumberOfLineNumbers 83 .long IMAGE_SCN_CNT_CODE | \ 84 IMAGE_SCN_MEM_READ | \ 85 IMAGE_SCN_MEM_EXECUTE // Characteristics 86 87 .ascii ".data\0\0\0" 88 .long __pecoff_data_size // VirtualSize 89 .long __initdata_begin - _head // VirtualAddress 90 .long __pecoff_data_rawsize // SizeOfRawData 91 .long __initdata_begin - _head // PointerToRawData 92 93 .long 0 // PointerToRelocations 94 .long 0 // PointerToLineNumbers 95 .short 0 // NumberOfRelocations 96 .short 0 // NumberOfLineNumbers 97 .long IMAGE_SCN_CNT_INITIALIZED_DATA | \ 98 IMAGE_SCN_MEM_READ | \ 99 IMAGE_SCN_MEM_WRITE // Characteristics 100 101 .set section_count, (. - section_table) / 40 102 103#ifdef CONFIG_DEBUG_EFI 104 /* 105 * The debug table is referenced via its Relative Virtual Address (RVA), 106 * which is only defined for those parts of the image that are covered 107 * by a section declaration. Since this header is not covered by any 108 * section, the debug table must be emitted elsewhere. So stick it in 109 * the .init.rodata section instead. 110 * 111 * Note that the EFI debug entry itself may legally have a zero RVA, 112 * which means we can simply put it right after the section headers. 113 */ 114 __INITRODATA 115 116 .align 2 117efi_debug_table: 118 // EFI_IMAGE_DEBUG_DIRECTORY_ENTRY 119 .long 0 // Characteristics 120 .long 0 // TimeDateStamp 121 .short 0 // MajorVersion 122 .short 0 // MinorVersion 123 .long IMAGE_DEBUG_TYPE_CODEVIEW // Type 124 .long efi_debug_entry_size // SizeOfData 125 .long 0 // RVA 126 .long efi_debug_entry - _head // FileOffset 127 128 .set efi_debug_table_size, . - efi_debug_table 129 .previous 130 131efi_debug_entry: 132 // EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY 133 .ascii "NB10" // Signature 134 .long 0 // Unknown 135 .long 0 // Unknown2 136 .long 0 // Unknown3 137 138 .asciz VMLINUX_PATH 139 140 .set efi_debug_entry_size, . - efi_debug_entry 141#endif 142 143 /* 144 * EFI will load .text onwards at the 4k section alignment 145 * described in the PE/COFF header. To ensure that instruction 146 * sequences using an adrp and a :lo12: immediate will function 147 * correctly at this alignment, we must ensure that .text is 148 * placed at a 4k boundary in the Image to begin with. 149 */ 150 .balign SEGMENT_ALIGN 151efi_header_end: 152 .endm 153