Re: [PATCH V38 15/29] acpi: Ignore acpi_rsdp kernel param when the kernel has been locked down
From: Matthew Garrett <hidden>
Date: 2019-08-14 18:02:47
Also in:
linux-acpi, linux-security-module, lkml
On Wed, Aug 14, 2019 at 10:46 AM Borislav Petkov [off-list ref] 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.