Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull core/iommu changes for v3.4 from Ingo Molnar

* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/iommu/intel: Increase the number of iommus supported to MAX_IO_APICS
  x86/iommu/intel: Fix identity mapping for sandy bridge