From: Dmitry Skorodumov <sdmitry@parallels.com>
Date: Tue, 28 Jul 2015 14:38:32 +0000 (+0400)
Subject: x86/efi: Use all 64 bit of efi_memmap in setup_e820()
X-Git-Tag: omap-for-v4.3/fixes-merge-window~157^2~2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7cc03e48965453b5df1cce5062c826189b04b960;p=pandora-kernel.git

x86/efi: Use all 64 bit of efi_memmap in setup_e820()

The efi_info structure stores low 32 bits of memory map
in efi_memmap and high 32 bits in efi_memmap_hi.

While constructing pointer in the setup_e820(), need
to take into account all 64 bit of the pointer.

It is because on 64bit machine the function
efi_get_memory_map() may return full 64bit pointer and before
the patch that pointer was truncated.

The issue is triggered on Parallles virtual machine and
fixed with this patch.

Signed-off-by: Dmitry Skorodumov <sdmitry@parallels.com>
Cc: Denis V. Lunev <den@openvz.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---

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