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SubjectRe: [RFC PATCH] virtio_ring: Use DMA API if guest memory is encrypted
On Tue, Jan 29, 2019 at 09:36:08PM -0500, Michael S. Tsirkin wrote:
> This has been discussed ad nauseum. virtio is all about compatibility.
> Losing a couple of lines of code isn't worth breaking working setups.
> People that want "just use DMA API no tricks" now have the option.
> Setting a flag in a feature bit map is literally a single line
> of code in the hypervisor. So stop pushing for breaking working
> legacy setups and just fix it in the right place.

I agree with the legacy aspect. What I am missing is an extremely
strong wording that says you SHOULD always set this flag for new
hosts, including an explanation why.

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