kernel/linux.git/arch/loongarch/include/asm/image.h, branch linux-7.0.yLinux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=linux-7.0.y2025-10-02T14:39:07+00:00LoongArch: Add EFI binary support for kexec_file2025-10-02T14:39:07+00:00Youling Tangtangyouling@kylinos.cn2025-10-02T14:39:07+00:00urn:sha1:55d990f0084c2b8ab9321dc59fc11dce855b4d61
This patch creates kexec_efi_ops to load EFI binary file for
kexec_file_load() syscall.
The efi_kexec_load() as two parts:
- the first part loads the kernel image (vmlinuz.efi or vmlinux.efi)
- the second part loads other segments (e.g: initrd, cmdline, etc)
Currently, pez (vmlinuz.efi) and pei (vmlinux.efi) format images are
supported.
The basic usage (vmlinuz.efi or vmlinux.efi):
1) Load second kernel image:
# kexec -s -l vmlinuz.efi --initrd=initrd.img --reuse-cmdline
2) Startup second kernel:
# kexec -e
Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
LoongArch: Add struct loongarch_image_header for kernel2025-10-02T14:39:07+00:00Youling Tangtangyouling@kylinos.cn2025-10-02T14:39:07+00:00urn:sha1:30ade4fef7ad95ab266a74a2f69544b02af7299d
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 <tangyouling@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>