Hello Alexey,
Alexey Kardashevskiy <a...@ozlabs.ru> writes:
> From: Ram Pai <linux...@us.ibm.com>
>
> This reverts commit edea902c1c1efb855f77e041f9daf1abe7a9768a.
>
> At the time the change allowed direct DMA ops for secure VMs; however
> since then we switched on using SWIOTLB backed with IOMMU (direct mapping)
> and to make this work, we need dma_iommu_ops which handles all cases
> including TCE mapping I/O pages in the presence of an IOMMU.
>
> Fixes: edea902c1c1e ("powerpc/pseries/iommu: Don't use dma_iommu_ops on
> secure guests")
> Signed-off-by: Ram Pai <linux...@us.ibm.com>
> [aik: added "revert" and "fixes:"]
> Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
Reviewed-by: Thiago Jung Bauermann <bauer...@linux.ibm.com>
Tested-by: Thiago Jung Bauermann <bauer...@linux.ibm.com>
--
Thiago Jung Bauermann
IBM Linux Technology Center
