linux-kernel - Re: [RFC PATCH v2 2/6] x86/sev: add SVSM vTPM probe/send

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Message-ID: <20250310135133.GIZ87uZZNhNSkmxvg1@fat_crate.local>
Date: Mon, 10 Mar 2025 14:51:33 +0100
From: Borislav Petkov <bp@...en8.de>
To: Tom Lendacky <thomas.lendacky@....com>
Cc: Stefano Garzarella <sgarzare@...hat.com>,
	Jarkko Sakkinen <jarkko@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Claudio Carvalho <cclaudio@...ux.ibm.com>,
	Peter Huewe <peterhuewe@....de>, x86@...nel.org,
	Dov Murik <dovmurik@...ux.ibm.com>, linux-coco@...ts.linux.dev,
	Dionna Glaze <dionnaglaze@...gle.com>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	Ingo Molnar <mingo@...hat.com>, Joerg Roedel <jroedel@...e.de>,
	Jason Gunthorpe <jgg@...pe.ca>, linux-integrity@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [RFC PATCH v2 2/6] x86/sev: add SVSM vTPM probe/send_command
 functions

On Mon, Mar 10, 2025 at 08:27:37AM -0500, Tom Lendacky wrote:
> I don't think anything needs to be checked or printed.

Yes.

> If you want to do anything, just issue a pr_info() with the features value
> (and maybe the platform_cmds value, too). Issuing a pr_warn() here would be
> like issuing a pr_warn() for a new CPUID value that the current kernel
> doesn't know about.

I still don't get the need to print anything. Why?

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette