From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 686EFC4332B for ; Tue, 9 Mar 2021 17:13:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 40EA065274 for ; Tue, 9 Mar 2021 17:13:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231430AbhCIRNB (ORCPT ); Tue, 9 Mar 2021 12:13:01 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:43781 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231627AbhCIRMy (ORCPT ); Tue, 9 Mar 2021 12:12:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1615309973; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=QDiWkJUtFaM48IgTP2YitIoq9fuTHCd8wn8lOzbyjb4=; b=aLAbWZSg7SqHBz8HQjqrwrGEsYlXFcUb7oF1+qidAjuG05qUuJRu+o3M2Nkv9DUr/OeDFi wBqiJsGRh25d+gbba4SlKAtWxm0DdJ5oC+PJm0vyFJNV1QCc6Mhr4yoBRwQxwXl8+qm0TW QmLlNF7UAsJ+zLMtcZP1B6UAuLiPNJg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-517-rOiZa9gJOXOA9wVIVbv71w-1; Tue, 09 Mar 2021 12:12:49 -0500 X-MC-Unique: rOiZa9gJOXOA9wVIVbv71w-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8C77784BA40; Tue, 9 Mar 2021 17:12:46 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-118-152.rdu2.redhat.com [10.10.118.152]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4E13F5D6D7; Tue, 9 Mar 2021 17:12:42 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: References: <20210303135500.24673-1-alex.bennee@linaro.org> <20210303135500.24673-2-alex.bennee@linaro.org> <20210305075131.GA15940@goby> To: Linus Walleij Cc: dhowells@redhat.com, Arnd Bergmann , keyrings@vger.kernel.org, Jarkko Sakkinen , Joakim Bech , =?UTF-8?B?QWxleCBCZW5uw6ll?= , "linux-kernel@vger.kernel.org" , Maxim Uvarov , Ilias Apalodimas , ruchika.gupta@linaro.org, "Winkler, Tomas" , yang.huang@intel.com, bing.zhu@intel.com, Matti.Moell@opensynergy.com, hmo@opensynergy.com, linux-mmc , linux-scsi , linux-nvme@vger.kernel.org, Ulf Hansson , Arnd Bergmann , Hector Martin Subject: Re: [RFC PATCH 1/5] rpmb: add Replay Protected Memory Block (RPMB) subsystem MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <178478.1615309961.1@warthog.procyon.org.uk> Date: Tue, 09 Mar 2021 17:12:41 +0000 Message-ID: <178479.1615309961@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Linus Walleij wrote: > As it seems neither Microsoft nor Apple is paying it much attention > (+/- new facts) it will be up to the community to define use cases > for RPMB. I don't know what would make most sense, but the > kernel keyring seems to make a bit of sense as it is a well maintained > keyring project. I'm afraid I don't know a whole lot about the RPMB. I've just been and read https://lwn.net/Articles/682276/ about it. What is it you envision the keyring API doing with regard to this? Being used to represent the key needed to access the RPMB or being used to represent an RPMB entry (does it have entries?)? David