Re: The current status of PKS virtualization

From: Ruihan Li
Date: Mon Nov 10 2025 - 20:30:38 EST


On Mon, Nov 10, 2025 at 09:44:36PM +0100, Paolo Bonzini wrote:
> No, there is none. In fact, the only dependency of the original series
> on host PKS was for functions to read/write the host PKRS MSR. Without
> host PKS support it could be loaded with all-ones, or technically it
> could even be left with the guest value. Since the host clears
> CR4.PKS, the actual value won't matter.

Thanks a lot for your quick and detailed reply! That's good news for me.
Then I plan to spend some time tidying up my rebased version to see if I
can get PKS virtualization upstreamed.

As a side note, I can no longer contact the original author of this
patch series. At least, my previous email was returned by Intel's
server. However, since more than three years have passed, I assume it's
okay for me to post a new version after I have the code ready.

Thanks,
Ruihan Li