Re: [RFC PATCH V3 08/11] swiotlb: Add bounce buffer remap address setting function

[Tianyu Lan]

On 6/14/2021 11:32 PM, Christoph Hellwig wrote:
> On Mon, Jun 14, 2021 at 02:49:51PM +0100, Robin Murphy wrote:
> > FWIW, I think a better generalisation for this would be allowing
> > set_memory_decrypted() to return an address rather than implicitly
> > operating in-place, and hide all the various hypervisor hooks behind that.
>
> Yes, something like that would be a good idea.  As-is
> set_memory_decrypted is a pretty horribly API anyway due to passing
> the address as void, and taking a size parameter while it works in units
> of pages.  So I'd very much welcome a major overhaul of this API.

Hi Christoph and Robin:
	Thanks for your suggestion. I will try this idea in the next version. 
Besides make the address translation into set_memory_
decrypted() and return address, do you want to make other changes to the 
API in order to make it more reasonable(e.g size parameter)?

Thanks