tree 0ce44573f050f90379acd72e4df3e43b5b63e6b8
parent a8aed3e0752b4beb2e37cbed6df69faae88268da
author Thomas Renninger <trenn@suse.de> 1361538742 +0100
committer H. Peter Anvin <hpa@linux.intel.com> 1361818029 -0800

ACPI: Overriding ACPI tables via initrd only works with an initrd and on X86

Reflect this dependency in Kconfig, to prevent build failures.

Shorten the config description as suggested by Borislav Petkov.

Finding a suitable memory area to store the modified table(s) has been
taken over from arch/x86/kernel/setup.c and makes use of max_low_pfn_mapped:
memblock_find_in_range(0, max_low_pfn_mapped,...)
This one is X86 specific. It may not be hard to extend this functionality
for other ACPI aware architectures if there is need for.

For now make this feature only available for X86 to avoid build failures on
IA64, compare with:
https://bugzilla.kernel.org/show_bug.cgi?id=54091

Signed-off-by: Thomas Renninger <trenn@suse.de>
Link: http://lkml.kernel.org/r/1361538742-67599-3-git-send-email-trenn@suse.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>