[Bug 1685744] [NEW] [Feature] IOMMU feature support

[quanxian]

Public bug reported:


Bug fixes:
IOMMU SVM code has wrong macro for source id in ext_dev_tlb_invalidate: aaa59306b (4.11)
Audit IOMMU capabilities and disable if there are some incompatible IOMMU's in the platform:???
IOMMU Supervisor PASID requires support for flushing global pages:???
Audit IOMMU caching mode behavior to ensure correctnes:???
OMMU identity map for tylersburg errata is done incorrectly:21e722c4c8
IOMMU SVM drivers need a facility to reset PASID and PRI capability when function is reset via FLR:???
Remove IOMMU PASID state table under a separate config option.:???

Feature: 
Add debugfs extensions for helping debug of iommu structures:
Implement IOMMU feature Pasid Support Limitation (PSL) v2.4+:???
IOMMU SVM needs a helper function to check if a given PASID is valid:???
vmalloc/vfree family of API's require notifications for kernel consumers like IOMMU:???
IOMMU SVM requires PRQ_DRAIN function implemented:???
IOMMU Virtualization needs a function to bind guest pasid table pointer:???

Target Release: 17.10

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  [Feature] IOMMU feature support

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