From 8bc3e127421bf3b735edbde05135892c12c5f615 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Wed, 2 Sep 2009 16:48:40 +0200
Subject: [PATCH] x86/amd-iommu: Change alloc_pte to support 64 bit address
 space

This patch changes the alloc_pte function to be able to map
pages into the whole 64 bit address space supported by AMD
IOMMU hardware from the old limit of 2**39 bytes.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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