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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 83716C77B7A for ; Tue, 30 May 2023 17:13:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:CC:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=LUW6IzPbAjw4wcFYIKhpdiCKNdpPP+xKU5IP7XRk/WE=; b=GkaonUxBi1cv8X bLUUQ+CGpaD+vlbwPfd3CvcDzDVvlmfmLi/aoXLjv8CW4UTdyXGhyyIarLC4FHlx684Hy32rcvSdD qbVRvMNexw2PmhY4ecHNw8k9NbivplWd0LqcUn/9vP0/oKsrDPLUuSXV1wLFgdR0VJauyXQJb8r0D p7vp2RxelL7U+RoEa+8ie9h9m2jiIEDg/TZH0VGWDOYV6JNOCx0Lvgq1qelD4QLnVBC3RHfSsp2bM 6Zech+HwNtlpSjrHOJpAaXek7ox44h6zLWXV8gVOGRYE7KrRMtYaftOED7OcJ10p8gEG5Ibf5rodr s/Jo2dqPSquu2tGwzJnQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q42u1-00Ei9k-1e; Tue, 30 May 2023 17:12:57 +0000 Received: from mx07-00178001.pphosted.com ([185.132.182.106]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q42ty-00Ei7P-0X for linux-arm-kernel@lists.infradead.org; Tue, 30 May 2023 17:12:56 +0000 Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34UFnxM2017369; Tue, 30 May 2023 19:12:29 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=selector1; bh=FwkP6U9+abkTw5jLxAP82NS3Pqb2yLMLtFGxIOmhkZY=; b=IUc1O1SrTMIn+QZWfRSS9AjGAvkYdvByQSrp6ETusmwrvXwnlpUOltNzYRtxq0x3+su9 okK5FpSsBPPHOgZAR9mczGidpgVLhSdp9Xbkr+wJ/YO9RW31LEqZWsCpH37voqsl6/18 m2tYXvz2NGHE8n+OW/yOB9XxjcNZNEAV7X6q7GehQlF86gTY+7bWsmMxcGCDuuyM2DsK lw+hKYMenVMXCymEvvG8mjtNFCtOXOcQFyFFHa7YaHGKt1AAZdE8612c5GaCiznhWYZN 0eLUrp8jZXRPt4UhWdMDRaemW6IgGaZfu2yVqfpJ3ufR3nGYPg4lId53E37OmVFg6tI7 Gw== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3quahy9j2f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 30 May 2023 19:12:29 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 3FFE410002A; Tue, 30 May 2023 19:12:28 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node2.st.com [10.75.129.70]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 26A8F23694B; Tue, 30 May 2023 19:12:28 +0200 (CEST) Received: from [10.252.5.129] (10.252.5.129) by SHFDAG1NODE2.st.com (10.75.129.70) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Tue, 30 May 2023 19:12:22 +0200 Message-ID: Date: Tue, 30 May 2023 19:12:21 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [RFC PATCH 0/4] introduction of a remoteproc tee to load signed firmware images Content-Language: en-US To: Mathieu Poirier CC: Bjorn Andersson , Jens Wiklander , , , , , References: <20230523091350.292221-1-arnaud.pouliquen@foss.st.com> From: Arnaud POULIQUEN Organization: STMicroelectronics In-Reply-To: X-Originating-IP: [10.252.5.129] X-ClientProxiedBy: SHFCAS1NODE2.st.com (10.75.129.73) To SHFDAG1NODE2.st.com (10.75.129.70) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.957,Hydra:6.0.573,FMLib:17.11.176.26 definitions=2023-05-30_12,2023-05-30_01,2023-05-22_02 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230530_101254_793920_73B3C502 X-CRM114-Status: GOOD ( 22.44 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hello Mathieu, On 5/30/23 18:20, Mathieu Poirier wrote: > On Tue, May 23, 2023 at 11:13:46AM +0200, Arnaud Pouliquen wrote: >> This RFC proposes an implementation of a remoteproc tee driver to >> communicate with a TEE trusted application in charge of authenticating >> and loading remoteproc firmware image in an Arm secure context. >> >> The services implemented are the same as those offered by the Linux >> remoteproc framework: >> - load of a signed firmware >> - start/stop of a coprocessor >> - get the resource table >> >> >> The OP-TEE code in charge of providing the service in a trusted application >> is proposed for upstream here: >> https://github.com/OP-TEE/optee_os/pull/6027 >> >> For more details on the implementation a presentation is available here: >> https://resources.linaro.org/en/resource/6c5bGvZwUAjX56fvxthxds >> >> Arnaud Pouliquen (4): >> tee: Re-enable vmalloc page support for shared memory >> remoteproc: Add TEE support >> dt-bindings: remoteproc: add compatibility for TEE support >> remoteproc: stm32: Add support of an OP-TEE TA to load the firmware >> >> .../bindings/remoteproc/st,stm32-rproc.yaml | 33 +- >> drivers/remoteproc/Kconfig | 9 + >> drivers/remoteproc/Makefile | 1 + >> drivers/remoteproc/stm32_rproc.c | 234 +++++++++-- >> drivers/remoteproc/tee_remoteproc.c | 397 ++++++++++++++++++ >> drivers/tee/tee_shm.c | 24 +- >> include/linux/tee_remoteproc.h | 101 +++++ >> 7 files changed, 753 insertions(+), 46 deletions(-) >> create mode 100644 drivers/remoteproc/tee_remoteproc.c >> create mode 100644 include/linux/tee_remoteproc.h > > Looking at comments from Christoph, there seems to be a good refactoring > exercise in store for this pathset. Yes, a good opportunity to ramp-up on kernel memory management :) As such I will wait for the next revision > to look at it. That's fair. More than that I would prefer to focus first on OP-TEE part that provides the service. The OP-TEE pull request review could have significant impacts on the kernel implementation... Thanks, Arnaud > > Thanks, > Mathieu > >> >> -- >> 2.25.1 >> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel