iommu/vt-d: Populate debugfs if IOMMUs are detected
Currently, the intel iommu debugfs directory(/sys/kernel/debug/iommu/intel) gets populated only when DMA remapping is enabled (dmar_disabled = 0) irrespective of whether interrupt remapping is enabled or not. Instead, populate the intel iommu debugfs directory if any IOMMUs are detected. Cc: Dan Carpenter <dan.carpenter@oracle.com> Fixes: ee2636b8 ("iommu/vt-d: Enable base Intel IOMMU debugfs support") Signed-off-by: NMegha Dey <megha.dey@linux.intel.com> Signed-off-by: NLu Baolu <baolu.lu@linux.intel.com> Signed-off-by: NJoerg Roedel <jroedel@suse.de>
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