[PATCH v1 10/13] kho: Allow kexec load before KHO finalization
Pratyush Yadav
pratyush at kernel.org
Fri Nov 14 09:30:34 PST 2025
On Fri, Nov 14 2025, Pasha Tatashin wrote:
> Currently, kho_fill_kimage() checks kho_out.finalized and returns
> early if KHO is not yet finalized. This enforces a strict ordering where
> userspace must finalize KHO *before* loading the kexec image.
>
> This is restrictive, as standard workflows often involve loading the
> target kernel early in the lifecycle and finalizing the state (FDT)
> only immediately before the reboot.
>
> Since the KHO FDT resides at a physical address allocated during boot
> (kho_init), its location is stable. We can attach this stable address
> to the kimage regardless of whether the content has been finalized yet.
>
> Relax the check to only require kho_enable, allowing kexec_file_load
> to proceed at any time.
>
> Signed-off-by: Pasha Tatashin <pasha.tatashin at soleen.com>
Reviewed-by: Pratyush Yadav <pratyush at kernel.org>
[...]
--
Regards,
Pratyush Yadav
More information about the kexec
mailing list