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Date:   Wed, 2 Feb 2022 07:10:23 +0000
From:   Matthew Garrett <mjg59@srcf.ucam.org>
To:     Greg KH <gregkh@linuxfoundation.org>
Cc:     James Bottomley <jejb@linux.ibm.com>,
        Dov Murik <dovmurik@linux.ibm.com>, linux-efi@vger.kernel.org,
        Borislav Petkov <bp@suse.de>,
        Ashish Kalra <ashish.kalra@amd.com>,
        Brijesh Singh <brijesh.singh@amd.com>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        Ard Biesheuvel <ardb@kernel.org>,
        James Morris <jmorris@namei.org>,
        "Serge E. Hallyn" <serge@hallyn.com>,
        Andi Kleen <ak@linux.intel.com>,
        Andrew Scull <ascull@google.com>,
        Dave Hansen <dave.hansen@intel.com>,
        "Dr. David Alan Gilbert" <dgilbert@redhat.com>,
        Gerd Hoffmann <kraxel@redhat.com>,
        Lenny Szubowicz <lszubowi@redhat.com>,
        Peter Gonda <pgonda@google.com>,
        Tobin Feldman-Fitzthum <tobin@linux.ibm.com>,
        Jim Cadden <jcadden@ibm.com>,
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        linux-kernel@vger.kernel.org, Nayna Jain <nayna@linux.ibm.com>,
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        gjoyce@ibm.com, linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au,
        dja@axtens.net
Subject: Re: [PATCH v7 0/5] Allow guest access to EFI confidential computing
 secret area
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On Wed, Feb 02, 2022 at 08:05:23AM +0100, Greg KH wrote:

> I see different platform patches trying to stick these blobs in
> different locations and ways to access (securityfs, sysfs, char device
> node), which seems crazy to me.  Why can't we at least pick one way to
> access these to start with, and then have the filesystem layout be
> platform-specific as needed, which will give the correct hints to
> userspace as to what it needs to do here?

Which other examples are you thinking of? I think this conversation may 
have accidentally become conflated with a different prior one and now 
we're talking at cross purposes.