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=-6.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT 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 BE9EBC433E9 for ; Tue, 9 Mar 2021 13:28:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 70E1C65177 for ; Tue, 9 Mar 2021 13:28:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230397AbhCIN1x (ORCPT ); Tue, 9 Mar 2021 08:27:53 -0500 Received: from esa3.hgst.iphmx.com ([216.71.153.141]:40103 "EHLO esa3.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230462AbhCIN1a (ORCPT ); Tue, 9 Mar 2021 08:27:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1615296450; x=1646832450; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=o801WpJ7u1Na+IXF41rulbrs+RI+ZynTaPoiXJhQhac=; b=I/KZiv7MWtnzEUqe222Er+LOM1JyUNTs3xsJnf6hxsD2qVmHxJLidRJ0 cbz5xB4WWexZtpLEA7JvFfYxwuZtu96o8TPI7Vw4A9eAnybaIdZz7QEgn FeHxZku78upomqASjcDAEDPUHjPRH5PSJCeimHHMeLRROtAkJt3gZDlwV Botz8AQ6ueWqTsG6X3bc+hYmoODJjzMEyN/0YYZ7rMpRxG8krwe31dMPw ksI0n7WIwST4YhAJfirf+Jymq4E4KcpCxawuy4oE3NuYDOsKlqXlMFFft dnFUMf3j1X4/jTVwNNBuCwKpmKJc2m7slbqJoT8EkH6Vsbm7ihRZyqswd Q==; IronPort-SDR: bb5Qj5aFlibhloSNhnNWgOxiB8Knn7JLEZ0JI1kK0d27u5JQIK2bSq5fMDTdPM2N1Aj1G/qiVc NZLcb7ji/1W7pk+/chsQJevrPsJ3pZQlqg1UPclYsfsNBNWjOocUNEB/sD/3c5fkpTZgA+4TI7 tPL1JezL4OMMD5+X+iTTpbzlRN/pPvtqDgC9rNJ2kWRq5ryHiuTqH8L+0gB6UVL6PAZ2t5AvS6 mz1dIQooB2Y0YsJjLdpq9na969dxn/E6ajF5ictoFHx+JuQLE51rKHdQgpaOt5EY6REKnVAgne 33c= X-IronPort-AV: E=Sophos;i="5.81,234,1610380800"; d="scan'208";a="166215158" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 09 Mar 2021 21:27:29 +0800 IronPort-SDR: uDJkKXOJG/HW+wiBSdkuUZ225av7y+g333NjvAXkiYsfXh33hhGMmIc/I6/Y+LLL2Vkjwm33pa 0AMZnF2laaRQ9Y2mf/t7V23DnOPWwUdUTCbNy6hHYEFC8o9a0lyG5ZqsB8BKpMXAANpLyzMnsK Py10AjYOOCF2rW6+fz3ZviXmuktMPJVMyOb87HFEN8LNWD2F/8DvjwQ3X2Jo4LarBovxHWFg3L 4I7wa7Tz62AFYrG6um1IwUPzq56Qo7geA3zOLe1bW2sS0iggzkmK6Uni+quujp7Ij1vcHmUJoc XlzgoCvk74O3Vq8/disvl84e Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Mar 2021 05:08:27 -0800 IronPort-SDR: V1pvUC/GOU87ho1DuYSPyyj3+CKrO7ouUqgyOB9kBlbD2VRqRpELWgFP/7i2D2w4Vkiyy3qZo1 yOwqrrSxmuRb208CcUoXLIQG56i3npT2y1SHck9c/hbHotzhdnXRJAcSkE8TWFQ/qR/hX47uIt GlPJrbe6GP/jvv5E0tFHaInLn9dAAMC1ediwC2zHG17fhPb6/fapIicqKMpYxHSITsCM2ofO75 EeyiCRYHKtG5IKTzVwtIqB7m6WLp9saXK/wzhA7ytJIzb2VJ+jArmAw6bNolwM20fvfa3njg3G 0oo= WDCIronportException: Internal Received: from bxygm33.sdcorp.global.sandisk.com ([10.0.231.247]) by uls-op-cesaip02.wdc.com with ESMTP; 09 Mar 2021 05:27:26 -0800 From: Avri Altman To: alex.bennee@linaro.org Cc: Matti.Moell@opensynergy.com, arnd@linaro.org, bing.zhu@intel.com, hmo@opensynergy.com, ilias.apalodimas@linaro.org, joakim.bech@linaro.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, linux-nvme@vger.kernel.org, linux-scsi@vger.kernel.org, maxim.uvarov@linaro.org, ruchika.gupta@linaro.org, tomas.winkler@intel.com, yang.huang@intel.com Subject: [RFC PATCH 0/5] RPMB internal and user-space API + WIP virtio-rpmb frontend Date: Tue, 9 Mar 2021 15:27:25 +0200 Message-Id: <20210309132725.638205-1-avri.altman@wdc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210303135500.24673-1-alex.bennee@linaro.org> References: <20210303135500.24673-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The mmc driver has some hooks to support rpmb access, but access is mainly facilitated from user space, e.g. mmc-utils. The ufs driver has no concept of rpmb access - it is facilitated via user space, e.g. ufs-utils and similar. Both for ufs and mmc, rpmb access is defined in their applicable jedec specs. This is the case for few years now - AFAIK No new rpmb-related stuff is expected to be introduced in the near future. What problems, as far as mmc and ufs, are you trying to solve by this new subsystem? Thanks, Avri