Re: [PATCH] x86/mm: Check cc_vendor when printing memory encryption info

From: kirill . shutemov
Date: Fri Nov 10 2023 - 14:17:34 EST


On Fri, Nov 10, 2023 at 02:42:31PM +0100, Jeremi Piotrowski wrote:
> On 10/11/2023 13:46, kirill.shutemov@xxxxxxxxxxxxxxx wrote:
> > On Fri, Nov 10, 2023 at 01:27:08PM +0100, Jeremi Piotrowski wrote:
> >>> Maybe just remove incorrect info and that's it?
> >>>
> >>
> >> I disagree, other users and I find the print very useful to see which coco
> >> platform the kernel is running on and which confidential computing features
> >> the kernel detected. I'm willing to fix the code to report correct info.
> >
> > For TDX, we already have "tdx: Guest detected" in dmesg. sme_early_init()
> > can do something similar.
> >
>
> That doesn't cover TDX guests with TD partitioning on Hyper-V.

I am sure Hyper-V can report what mode it runs.

--
Kiryl Shutsemau / Kirill A. Shutemov