kexec: load-preserve-context option on s390

[Simon Horman]

On Mon, Sep 26, 2011 at 03:09:09PM +0200, Michael Holzheu wrote:
> Hello Simon,
> 
> I think the --load-preserve-context and --load-jump-back-helper kexec
> options are not working on s390 because we do not support
> CONFIG_KEXEC_JUMP. I assume the same is true also on other
> architectures. Correct me, if I am wrong. Unfortunately I did not find
> much documentation for that feature.
> 
> Wouldn't it be better to print an error message when the options are
> used on those architectures?

Ideally it would be nice if kexec-tools could ask the kernel
if KEXEC_JUMP is supported (or enabled?) or not rather than
hardcoding this information into kexec-tools on a per-architecture basis.