Re: [PATCH V38 15/29] acpi: Ignore acpi_rsdp kernel param when the kernel has been locked down

[Matthew Garrett]

On Wed, Aug 14, 2019 at 10:46 AM Borislav Petkov <bp@xxxxxxxxx> wrote:
> Yeah, ok, I see what you're doing there. AFAICT, you do that in
>
> setup_arch->acpi_boot_table_init-> ... -> acpi_os_get_root_pointer()

Right.

> I hope nothing needs it earlier because then we'll have to restructure
> again...

Passing the RSDP via command line is a pretty grotesque hack - we
should just set up boot params in kexec_file, which would leave this
as a problem for legacy kexec and nothing else.