linux-kernel - Re: [PATCH] x86/sev: Make SEV

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Message-ID: <20250305200722.GMZ8iu-iq6b3GHaUVb@fat_crate.local>
Date: Wed, 5 Mar 2025 21:07:22 +0100
From: Borislav Petkov <bp@...en8.de>
To: Dave Hansen <dave.hansen@...el.com>
Cc: Joerg Roedel <jroedel@...e.de>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Ingo Molnar <mingo@...nel.org>, Joerg Roedel <joro@...tes.org>,
	x86@...nel.org, hpa@...or.com,
	Tom Lendacky <thomas.lendacky@....com>,
	Nikunj A Dadhania <nikunj@....com>, linux-kernel@...r.kernel.org,
	Larry.Dewey@....com
Subject: Re: [PATCH] x86/sev: Make SEV_STATUS available via SYSFS

On Wed, Mar 05, 2025 at 09:09:47AM -0800, Dave Hansen wrote:
> Not really. There are always new features in the pipeline, but no real
> fundamental changes to the threat model like SEV has had throughout its
> iterations.

I'd call that more a iterative design with adding more features with each
gen.

Regardless, we should think about some sane mechanism of communicating guest
coco attributes to its userspace...

> Xen has a bunch of gunk in:
> 
> 	/sys/hypervisor

Yeah, see uptread.

-- 
Regards/Gruss,
    Boris.

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