iommu/amd: Don't use 512GB pages

There is a bug in the hardware that will be triggered when
this page size is used. Make sure this does not happen.

Signed-off-by: Joerg Roedel <joro@8bytes.org>
This commit is contained in:
Joerg Roedel 2012-12-02 15:35:37 +01:00
commit 954e3dd830