[PATCH 1/7] LoongArch: Add KHO basic support

[George Guo]

On Mon, May 25 2026, Pratyush Yadav wrote:

Hi Pratyush,

> Do you have nothing else for a bootloader to pass data to the kernel?
> Passing this via the command line seems crazy... All these addresses are
> now available directly to unprivileged userspace. Can't you use the
> device tree like we do on ARM64?
>
> Also, this commandline parameter isn't documented anywhere.

I have tried the FDT /chosen approach, storing the KHO metadata as
linux,kho-fdt and linux,kho-scratch properties (the same properties
that drivers/of/kexec.c:kho_add_chosen() writes
and drivers/of/fdt.c:early_init_dt_check_kho() reads).

This passes the KHO selftest when the system boots with FDT.

I am currently debugging the ACPI boot case.

Thanks for your advice!

--
Regards,
George Guo