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

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Message-ID: <pskj4f5fitd5ytb7gq4negloioihl2rfbpfwa47fnw74gxmlvh@vpoijhxcee64>
Date: Wed, 12 Mar 2025 10:48:37 +0200
From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To: Joerg Roedel <joro@...tes.org>
Cc: Joerg Roedel <jroedel@...e.de>, Alexey Gladkov <legion@...nel.org>, 
	Borislav Petkov <bp@...en8.de>, Jürgen Groß <jgross@...e.com>, 
	"Alexey Gladkov (Intel)" <alexey.gladkov@...el.com>, Dave Hansen <dave.hansen@...el.com>, 
	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 Wed, Mar 12, 2025 at 09:23:13AM +0100, Joerg Roedel wrote:
> On Wed, Mar 12, 2025 at 09:19:30AM +0200, Kirill A. Shutemov wrote:
> > TDX module information (version, supported features, etc) is crucial for
> > bug reporting. I think it makes sense to present it in sysfs.
> 
> The SEV side presents this information via dmesg and /dev/sev, we
> can also talk about a place in sysfs for it. But the place to present
> host-side information is a separate discussion.

There might be a value to have consistent structure for host and guest
information in sysfs, even if they are presented in different places under
/sys. There's subset of information that is common for both guest and
host, like version.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov