| Date | Thu, 12 Aug 2021 14:26:57 +0200 | From | Christoph Hellwig <> | Subject | 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@microsoft.com> > > 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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