Re: The current status of PKS virtualization

[Chenyi Qiang]

On 11/11/2025 10:24 PM, Ruihan Li wrote:
> On Tue, Nov 11, 2025 at 01:40:08PM +0800, Chenyi Qiang wrote:
>> Lei has left Intel so the mail address in unreachable.
>>
>> And as you found, we dropped the PKS KVM upstream along with the base PKS support
>> due to no valid use case in Linux. You can feel free to continue the upstream work.
> 
> Thanks for the reply and for the information!
> 
> By the way, I'm just curious (feel free to ignore this question): Is
> there an on-list discussion that rejects the originally proposed PKS use
> cases?
> 
> I found that pmem stray write protection was rejected [1], but there is
> no reason given nor any reference provided. After searching the list, I
> found the latest patch series that attempts to add pmem stray protection
> [2]. However, I didn't find any discussion rejecting the use case. Maybe
> the discussion happened off the list? Or did I miss something?

The discussion happened off the list. The customer demand for this feature
declined to such an extent that it was not worth working on any longer.