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

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Message-ID: <Z8l66FFgPu5hWtuI@agladkov-desk>
Date: Thu, 6 Mar 2025 11:37:28 +0100
From: "Alexey Gladkov (Intel)" <alexey.gladkov@...el.com>
To: Joerg Roedel <joro@...tes.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Dave Hansen <dave.hansen@...el.com>, Borislav Petkov <bp@...en8.de>,
	Joerg Roedel <jroedel@...e.de>, Ingo Molnar <mingo@...nel.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 Thu, Mar 06, 2025 at 09:38:21AM +0100, Joerg Roedel wrote:
> On Thu, Mar 06, 2025 at 10:01:17AM +0200, Kirill A. Shutemov wrote:
> > Alexey looking into exposing TDX module version in sysfs for both guest
> > and host.
> > 
> > I think it would be useful for guest to make attributes and TD_CTLS
> > available via sysfs. So far, we only dump them in dmesg on boot (see
> > 564ea84c8c14).
> 
> Okay, do you have ideas already on where to put this information in
> SYSFS?

I was thinking to suggest something like that

/sys/firmware/coco/tdx/...
/sys/firmware/coco/sev/...

-- 
Rgrds, legion

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