On 3/28/22 10:28, Alex Deucher wrote: > +How is IOVA generated? > +---------------------- > + > +Well behaved drivers call dma_map_*() calls before sending command to device > +that needs to perform DMA. Once DMA is completed and mapping is no longer > +required, driver performs dma_unmap_*() calls to unmap the region. > + > +Fault reporting > +--------------- > + > +When errors are reported, the IOMMU signals via an interrupt. The fault > +reason and device that caused it is printed on the console. Just scanning this, it looks *awfully* generic. Is anything in here AMD-specific? Should this be in an AMD-specific file?
