cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

efi-header.S (3542B)


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