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Jacob Pan authored
Global pages support is removed from VT-d spec 3.0. Since global pages G flag only affects first-level paging structures and because DMA request with PASID are only supported by VT-d spec. 3.0 and onward, we can safely remove global pages support. For kernel shared virtual address IOTLB invalidation, PASID granularity and page selective within PASID will be used. There is no global granularity supported. Without this fix, IOTLB invalidation will cause invalid descriptor error in the queued invalidation (QI) interface. Fixes: 1c4f88b7 ("iommu/vt-d: Shared virtual address in scalable mode") Reported-by:
Sanjay K Kumar <sanjay.k.kumar@intel.com> Signed-off-by:
Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by:
Joerg Roedel <jroedel@suse.de>
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