Re: [PATCH v10 21/45] x86/mm: Add support to validate memory when changing C-bit

Borislav Petkov
2022-02-15T12:55:06Z

On Tue, Feb 15, 2022 at 03:43:31PM +0300, Kirill A. Shutemov wrote:
> I don't think it works. TDX and SME/SEV has opposite polarity of the mask.
> SME/SEV has to clear the mask to share the page. TDX has to set it.
>
> Making a single global mask only increases confusion.

Didn't you read the rest of the thread with Tom's suggestion? I think
there's a merit in having a cc_vendor or so which explicitly states what
type of HV the kernel runs on...

--
Regards/Gruss,
Boris.