From: Youling Tang <tangyoul...@kylinos.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 <tangyoul...@kylinos.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 <tangyoul...@kylinos.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
