Re: [PATCH V3 09/13] DMA: Add dma_map_decrypted/dma_unmap_encrypted() function

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On Mon, Aug 09, 2021 at 01:56:13PM -0400, Tianyu Lan wrote:
> From: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>
> 
> In Hyper-V Isolation VM with AMD SEV, swiotlb boucne buffer
> needs to be mapped into address space above vTOM and so
> introduce dma_map_decrypted/dma_unmap_encrypted() to map/unmap
> bounce buffer memory. The platform can populate man/unmap callback
> in the dma memory decrypted ops.

Nothing here looks actually DMA related, and the names are horribly
confusing vs the actual dma_map_* calls.



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