Re: [PATCH V5 12/12] net: netvsc: Add Isolation VM support for netvsc driver

[Christoph Hellwig]

On Tue, Sep 28, 2021 at 05:23:31PM +0800, Tianyu Lan wrote:
>>
>>   - the bare memremap usage in swiotlb looks strange and I'd
>>     definitively expect a well documented wrapper.
>
> OK. Should the wrapper in the DMA code? How about dma_map_decrypted() 
> introduced in the V4?

A mentioned then the name is a pretty bad choice as it touches the dma_map*
namespace that it is not related to.  I suspect just a little helper
in the swiotlb code that explains how it is used might be enogh for now.