linux-kernel - [PATCH 1/6] LoongArch: Add struct loongarch_image

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250811092659.14903-2-youling.tang@linux.dev>
Date: Mon, 11 Aug 2025 17:26:54 +0800
From: Youling Tang <youling.tang@...ux.dev>
To: Huacai Chen <chenhuacai@...nel.org>
Cc: WANG Xuerui <kernel@...0n.name>,
	Baoquan He <bhe@...hat.com>,
	kexec@...ts.infradead.org,
	loongarch@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	youling.tang@...ux.dev,
	Youling Tang <tangyouling@...inos.cn>
Subject: [PATCH 1/6] LoongArch: Add struct loongarch_image_header for kernel image

From: Youling Tang <tangyouling@...inos.cn>

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 signature, entry points,
image size and load address offset, etc.

Signed-off-by: Youling Tang <tangyouling@...inos.cn>
---
 arch/loongarch/include/asm/image.h | 40 ++++++++++++++++++++++++++++++
 1 file changed, 40 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 000000000000..1f090736e71d
--- /dev/null
+++ b/arch/loongarch/include/asm/image.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * LoongArch binary image header.
+ *
+ * Author: Youling Tang <tangyouling@...inos.cn>
+ * Copyright (C) 2025 KylinSoft Corporation.
+ *
+ * Most code is derived from LoongArch port of kexec-tools
+ */
+
+#ifndef __ASM_IMAGE_H
+#define __ASM_IMAGE_H
+#ifndef __ASSEMBLY__
+
+/**
+ * struct loongarch_image_header
+ *
+ * @pe_sig: Optional PE format 'MZ' signature.
+ * @reserved_1: Reserved.
+ * @kernel_entry: Kernel image entry pointer.
+ * @image_size: An estimated size of the memory image size in LSB byte order.
+ * @text_offset: The image load offset in LSB byte order.
+ * @reserved_2: Reserved.
+ * @reserved_3: Reserved.
+ * @pe_header: Optional offset to a PE format header.
+ **/
+
+struct loongarch_image_header {
+	uint8_t pe_sig[2];
+	uint16_t reserved_1[3];
+	uint64_t kernel_entry;
+	uint64_t image_size;
+	uint64_t text_offset;
+	uint64_t reserved_2[3];
+	uint32_t reserved_3;
+	uint32_t pe_header;
+};
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_IMAGE_H */
-- 
2.34.1