Re: [PATCH v14 00/22] TDX KVM selftests

[Xiaoyao Li]

On 10/9/2026 5:16 AM, Edgecombe, Rick P wrote:
> On Mon, 2026-08-17 at 10:58 -0700, Edgecombe, Rick P wrote:
>>>> Actually why is this on top of in-place conversion? I thought the idea was
>>>> to break the series apart to get something basic upstream:
>>>> https://lore.kernel.org/all/aJ-6JpHD6xhAvZPy@xxxxxxxxxx/
>>>>
>>>> Adding in-place conversion tests seems to be going in the opposite
>>>> direction.
>>>>
>>>
>>> We wanted to have this series based on in-place conversion since
>>> non-in-place conversion is on a deprecation path.
>>
>> Hmm, what kind of timeline do you see for the old interface actually getting
>> yanked out of the kernel? I was imagining it would be there for many years at
>> minimum, in which case it would need tests too.
>>
>> The level of dependencies we have on coco stuff is pretty unfortunate I think.
>> Considering these tests should have ideally quickly followed the TDX base
>> upstreaming, it would be nice if we could avoid it here.
> 
> I saw the new version is also based on in-place conversion (which is now headed
> upstream, congrats!). But can we talk about the legacy deprecation? Is there a
> plan to actually deprecate and remove it, or even move qemu off of the old
> interface?
> 
> Otherwise, I disagree with the plan to drop the tests for the old interface.
> That said I'd would be thrilled to have anything upstream, so if the set can be
> smaller or faster that way, then I agree with the change.

The v15 actually supports both: out-of-place conversion (per-VM memory
attributes) and in-place conversion.

> But in general, I'd like to know the plan for the old interface.

Sean talked something about it:
https://lore.kernel.org/all/akUdhVsIb7BEqU7z@xxxxxxxxxx/