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

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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



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