From 30ade4fef7ad95ab266a74a2f69544b02af7299d Mon Sep 17 00:00:00 2001 From: Youling Tang Date: Thu, 2 Oct 2025 22:39:07 +0800 Subject: [PATCH] LoongArch: Add struct loongarch_image_header for kernel Define a dedicated image header structure for LoongArch architecture to standardize kernel loading in bootloaders (primarily for kexec_file). This header includes critical metadata, such as PE/DOS signature, kernel entry points, kernel image size and load address offset, etc. Signed-off-by: Youling Tang Signed-off-by: Huacai Chen --- arch/loongarch/include/asm/image.h | 38 ++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 arch/loongarch/include/asm/image.h diff --git a/arch/loongarch/include/asm/image.h b/arch/loongarch/include/asm/image.h new file mode 100644 index 0000000000000..f2d738439160f --- /dev/null +++ b/arch/loongarch/include/asm/image.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * LoongArch binary image header for EFI(PE/COFF) format. + * + * Author: Youling Tang + * Copyright (C) 2025 KylinSoft Corporation. + */ + +#ifndef __ASM_IMAGE_H +#define __ASM_IMAGE_H + +#ifndef __ASSEMBLER__ + +/** + * struct loongarch_image_header + * + * @dos_sig: Optional PE format 'MZ' signature. + * @padding_1: Reserved. + * @kernel_entry: Kernel image entry pointer. + * @kernel_asize: An estimated size of the memory image size in LSB byte order. + * @text_offset: The image load offset in LSB byte order. + * @padding_2: Reserved. + * @pe_header: Optional offset to a PE format header. + **/ + +struct loongarch_image_header { + uint8_t dos_sig[2]; + uint16_t padding_1[3]; + uint64_t kernel_entry; + uint64_t kernel_asize; + uint64_t text_offset; + uint32_t padding_2[7]; + uint32_t pe_header; +}; + +#endif /* __ASSEMBLER__ */ + +#endif /* __ASM_IMAGE_H */ -- 2.47.3