From dabbea96f96de7f334277171b98cfc49607ea4b4 Mon Sep 17 00:00:00 2001
From: David Woodhouse <David.Woodhouse@intel.com>
Date: Sun, 29 May 2011 00:27:01 +0100
Subject: [PATCH] intel-iommu: Fix hardware_largepage_caps()

 - Don't use domain_get_iommu(). It'll BUG() when used on a VM domain.
 - Do actually check the iov_pfn to see whether it's suitably aligned.
 - "Simplify" the algorithm to give the compiler a chance to optimise.
   (Yes, this version is probably harder to understand. But that's what
    comments in the code are for.)
 - Inline it (it was previously not even static).

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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