1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2020 Western Digital Corporation or its affiliates. 4 * Adapted from arch/arm64/kernel/efi-header.S 5 */ 6 7 #include <linux/pe.h> 8 #include <linux/sizes.h> 9 #include <asm/set_memory.h> 10 11 .macro __EFI_PE_HEADER 12 .long PE_MAGIC 13 coff_header: 14 #ifdef CONFIG_64BIT 15 .short IMAGE_FILE_MACHINE_RISCV64 // Machine 16 #else 17 .short IMAGE_FILE_MACHINE_RISCV32 // Machine 18 #endif 19 .short section_count // NumberOfSections 20 .long 0 // TimeDateStamp 21 .long 0 // PointerToSymbolTable 22 .long 0 // NumberOfSymbols 23 .short section_table - optional_header // SizeOfOptionalHeader 24 .short IMAGE_FILE_DEBUG_STRIPPED | \ 25 IMAGE_FILE_EXECUTABLE_IMAGE | \ 26 IMAGE_FILE_LINE_NUMS_STRIPPED // Characteristics 27 28 optional_header: 29 #ifdef CONFIG_64BIT 30 .short PE_OPT_MAGIC_PE32PLUS // PE32+ format 31 #else 32 .short PE_OPT_MAGIC_PE32 // PE32 format 33 #endif 34 .byte 0x02 // MajorLinkerVersion 35 .byte 0x14 // MinorLinkerVersion 36 .long __pecoff_text_end - efi_header_end // SizeOfCode 37 #ifdef __clang__ 38 .long __pecoff_data_virt_size // SizeOfInitializedData 39 #else 40 .long __pecoff_data_virt_end - __pecoff_text_end // SizeOfInitializedData 41 #endif 42 .long 0 // SizeOfUninitializedData 43 .long __efistub_efi_pe_entry - _start // AddressOfEntryPoint 44 .long efi_header_end - _start // BaseOfCode 45 #ifdef CONFIG_32BIT 46 .long __pecoff_text_end - _start // BaseOfData 47 #endif 48 49 extra_header_fields: 50 .quad 0 // ImageBase 51 .long PECOFF_SECTION_ALIGNMENT // SectionAlignment 52 .long PECOFF_FILE_ALIGNMENT // FileAlignment 53 .short 0 // MajorOperatingSystemVersion 54 .short 0 // MinorOperatingSystemVersion 55 .short LINUX_EFISTUB_MAJOR_VERSION // MajorImageVersion 56 .short LINUX_EFISTUB_MINOR_VERSION // MinorImageVersion 57 .short 0 // MajorSubsystemVersion 58 .short 0 // MinorSubsystemVersion 59 .long 0 // Win32VersionValue 60 61 .long _end - _start // SizeOfImage 62 63 // Everything before the kernel image is considered part of the header 64 .long efi_header_end - _start // SizeOfHeaders 65 .long 0 // CheckSum 66 .short IMAGE_SUBSYSTEM_EFI_APPLICATION // Subsystem 67 .short 0 // DllCharacteristics 68 .quad 0 // SizeOfStackReserve 69 .quad 0 // SizeOfStackCommit 70 .quad 0 // SizeOfHeapReserve 71 .quad 0 // SizeOfHeapCommit 72 .long 0 // LoaderFlags 73 .long (section_table - .) / 8 // NumberOfRvaAndSizes 74 75 .quad 0 // ExportTable 76 .quad 0 // ImportTable 77 .quad 0 // ResourceTable 78 .quad 0 // ExceptionTable 79 .quad 0 // CertificationTable 80 .quad 0 // BaseRelocationTable 81 82 // Section table 83 section_table: 84 .ascii ".text\0\0\0" 85 .long __pecoff_text_end - efi_header_end // VirtualSize 86 .long efi_header_end - _start // VirtualAddress 87 .long __pecoff_text_end - efi_header_end // SizeOfRawData 88 .long efi_header_end - _start // PointerToRawData 89 90 .long 0 // PointerToRelocations 91 .long 0 // PointerToLineNumbers 92 .short 0 // NumberOfRelocations 93 .short 0 // NumberOfLineNumbers 94 .long IMAGE_SCN_CNT_CODE | \ 95 IMAGE_SCN_MEM_READ | \ 96 IMAGE_SCN_MEM_EXECUTE // Characteristics 97 98 .ascii ".data\0\0\0" 99 #ifdef __clang__ 100 .long __pecoff_data_virt_size // VirtualSize 101 #else 102 .long __pecoff_data_virt_end - __pecoff_text_end // VirtualSize 103 #endif 104 .long __pecoff_text_end - _start // VirtualAddress 105 #ifdef __clang__ 106 .long __pecoff_data_raw_size // SizeOfRawData 107 #else 108 .long __pecoff_data_raw_end - __pecoff_text_end // SizeOfRawData 109 #endif 110 .long __pecoff_text_end - _start // PointerToRawData 111 112 .long 0 // PointerToRelocations 113 .long 0 // PointerToLineNumbers 114 .short 0 // NumberOfRelocations 115 .short 0 // NumberOfLineNumbers 116 .long IMAGE_SCN_CNT_INITIALIZED_DATA | \ 117 IMAGE_SCN_MEM_READ | \ 118 IMAGE_SCN_MEM_WRITE // Characteristics 119 120 .set section_count, (. - section_table) / 40 121 122 .balign 0x1000 123 efi_header_end: 124 .endm 125