From: Joerg Roedel <jroedel@suse.de>
Date: Tue, 25 Aug 2015 08:54:28 +0000 (+0200)
Subject: iommu/vt-d: Really use upper context table when necessary
X-Git-Tag: omap-for-v4.3/fixes-rc1~57^2^6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4df4eab168c1c4058603be55a3169d4a45779cc0;p=pandora-kernel.git

iommu/vt-d: Really use upper context table when necessary

There is a bug in iommu_context_addr() which will always use
the lower context table, even when the upper context table
needs to be used. Fix this issue.

Fixes: 03ecc32c5274 ("iommu/vt-d: support extended root and context entries")
Reported-by: Xiao, Nan <nan.xiao@hp.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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