[PATCH 15/16] bootparam: Pass acpi_rsdp pointer in bootparam
bp at alien8.de
Fri Sep 13 07:26:54 EDT 2013
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.
More information about the kexec