074835f0143b83845af5044af2739c52c9f53808
author David Woodhouse <David.Woodhouse@intel.com> 1253370844 -0700
committer David Woodhouse <David.Woodhouse@intel.com> 1253370844 -0700

intel-iommu: Limit DOMAIN_MAX_PFN to fit in an 'unsigned long'

This means we're limited to 44-bit addresses on 32-bit kernels, and
makes it sane for us to use 'unsigned long' for PFNs throughout.

Which is just as well, really, since we already do that.

Reported-by: Benjamin LaHaise <ben.lahaise@neterion.com>
Tested-by: Benjamin LaHaise <ben.lahaise@neterion.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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