From 1e4c64c46d413de84cc0b786bd6a9b555ba7d111 Mon Sep 17 00:00:00 2001
From: David Woodhouse <David.Woodhouse@intel.com>
Date: Sat, 4 Jul 2009 10:40:38 +0100
Subject: [PATCH] intel-iommu: Don't set identity mapping for bypassed graphics
 devices

We should check iommu_dummy() _first_, because that means it's attached
to an iommu that we've just disabled completely. At the moment, we might
try to put the device into the identity mapping domain.

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