Subject: Re: [PATCH kernel v2 1/4] Revert "powerpc/pseries/iommu: Don't use dma_iommu_ops on secure guests"

From: Michael Ellerman <[email-masked]>
Date: Tue, 7 Jan 2020 10:33:18 +1100 (AEDT)

On Mon, 2019-12-16 at 04:19:21 UTC, Alexey Kardashevskiy wrote:
> From: Ram Pai <[email-masked]>
> 
> 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 <[email-masked]>
> [aik: added "revert" and "fixes:"]
> Signed-off-by: Alexey Kardashevskiy <[email-masked]>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/d862b44133b7a1d7de25288e09eabf4df415e971

cheers