IOMMU Upates for Linux v3.15 This time a few more updates queued up. * Rework VT-d code to support ACPI devices * Improvements for memory and PCI hotplug support in the VT-d driver * Device-tree support for OMAP IOMMU * Convert OMAP IOMMU to use devm_* interfaces * Fixed PASID support for AMD IOMMU * Other random cleanups and fixes for OMAP, ARM-SMMU and SHMOBILE IOMMU Most of the changes are in the VT-d driver because some rework was necessary for better hotplug and ACPI device support.