Re: [PATCH 15/16] bootparam: Pass acpi_rsdp pointer in bootparam

Borislav Petkov
2013-09-13T11:26:41Z

On Fri, Sep 13, 2013 at 03:12:40PM +0800, Dave Young wrote:
> Also the fw_vendor, runtime, tables elements will be fixed up to use
> virtual address after 1st kernel call SetVirtualAddress, so even with
> 1:1 mapping we still need save them and use in kexec kernel.

As I said a couple of times already, 1:1 mapping is a no go.

Concerning the runtime services, we need to pass the UEFI memory map to
the kexec'ed kernel because it needs to know those to start mapping them
from -4G virtual downwards.

--
Regards/Gruss,
Boris.