arch/x86/boot.rst

77 Protocol 2.15	(Kernel 5.5) Added the kernel_info and kernel_info.setup_type_max.
83      or kernel_info are changed. Additionally, it is recommended to use
85      updated either) or kernel_info to communicate supported Linux kernel
89      communicate things to the boot loader is the kernel_info.
228 0268/4		2.15+		kernel_info_offset	Offset of the kernel_info
923   kernel_info. The kernel_info structure is embedded in the Linux image
927 The kernel_info
938   kernel_info = .rodata
956 kernel_info solves this by providing an extensible place for information about
962 All kernel_info data should be part of this structure. Fixed size data have to
967   kernel_info:
969           .long   kernel_info_var_len_data - kernel_info
970           .long   kernel_info_end - kernel_info
987 This way the kernel_info is self-contained blob.
995 Details of the kernel_info Fields
1010   This field contains the size of the kernel_info including kernel_info.header.
1011   It does not count kernel_info.kernel_info_var_len_data size. This field should be
1012   used by the bootloaders to detect supported fixed size fields in the kernel_info
1013   and beginning of kernel_info.kernel_info_var_len_data.
1020   This field contains the size of the kernel_info including kernel_info.header
1021   and kernel_info.kernel_info_var_len_data.