From: Dave Young <dyoung@redhat.com>
Date: Fri, 20 Dec 2013 10:02:18 +0000 (+0800)
Subject: efi: Export EFI runtime memory mapping to sysfs
X-Git-Tag: v3.14-rc1~163^2~8
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=926172d46038d7610b6b8d84e40db727cefb482d;p=pandora-kernel.git

efi: Export EFI runtime memory mapping to sysfs

kexec kernel will need exactly same mapping for EFI runtime memory
ranges. Thus here export the runtime ranges mapping to sysfs,
kexec-tools will assemble them and pass to 2nd kernel via setup_data.

Introducing a new directory /sys/firmware/efi/runtime-map just like
/sys/firmware/memmap. Containing below attribute in each file of that
directory:

attribute  num_pages  phys_addr  type  virt_addr

Signed-off-by: Dave Young <dyoung@redhat.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---

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