On 11/04/2022, 10:43:55, Sourabh Jain wrote:
> Two new members fdt_index and fdt_index_valid are added in kimage_arch
> struct to track the FDT kexec segment. These new members of kimage_arch
> struct will help the crash hotplug handler to easily access the FDT
> segment from the kexec segment array. Otherwise, we have to loop through
> all kexec segments to find the FDT segments.
>
> Signed-off-by: Sourabh Jain <sourabhj...@linux.ibm.com>
> ---
> arch/powerpc/include/asm/kexec.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/powerpc/include/asm/kexec.h
> b/arch/powerpc/include/asm/kexec.h
> index e1288826e22e..19c2cab6a880 100644
> --- a/arch/powerpc/include/asm/kexec.h
> +++ b/arch/powerpc/include/asm/kexec.h
> @@ -104,6 +104,8 @@ extern const struct kexec_file_ops kexec_elf64_ops;
> struct kimage_arch {
> struct crash_mem *exclude_ranges;
>
#ifdef CONFIG_CRASH_HOTPLUG ?
> + int fdt_index;
> + bool fdt_index_valid;
#endif
It seems that this is only used when CONFIG_CRASH_HOTPLUG is defined, isn't it?
> unsigned long backup_start;
> void *backup_buf;
> void *fdt;
