From patchwork Tue Jun 11 07:38:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaud POULIQUEN X-Patchwork-Id: 13693188 Received: from mx07-00178001.pphosted.com (mx08-00178001.pphosted.com [91.207.212.93]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8981D172BAD; Tue, 11 Jun 2024 07:40:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.207.212.93 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718091627; cv=none; b=nAIYhttfYG+tJbGKiA3EuFVk3o5QlxJ5LjWH6kINMiIcdCOCdw+XXzXXyk6+4N9Huqt8tB8KW6baEm3rd7LFDgfGuxRvlgERDq4gBTz9Wiim3Uv6lEi8n2htRMCCH4huc12w/p3vxEQVH7cNzqIiu6qg85oIX/w14rdXXJ5Zrkg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718091627; c=relaxed/simple; bh=qzje3sYU1WIKZiIPjc4DmoKB6qgaXBjYoxgEvqjOXWQ=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=oRaR44uKhH/l/la6kuVCQrojZGNuKCM9y2EwRu5jkDTEiYPuiznq/++U5BTN8POvlV8sWo0SzM07eLhwCfp68QqlsdBiZPuYjruTQE7WAXdF6ZxE3bKQV76B29WEXPQCXKmlooTXCMGtWLuckwBXZ1dDPaKLPrfN/rgc8R2JKRk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com; spf=pass smtp.mailfrom=foss.st.com; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b=ktY96qGx; arc=none smtp.client-ip=91.207.212.93 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=foss.st.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b="ktY96qGx" Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 45B7XuOI012243; Tue, 11 Jun 2024 09:39:49 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=selector1; bh=/hlZYM3ZTO4WkdaB5sfY6D eqBGgAr0GqV3xBZuxJ8Zs=; b=ktY96qGxRB+tok22dAlKsu8H/Azpkn3LJDtKzP STHOm2BKKxyJp3EiP6HzUjwhebwdcrIuQi7vLr5B1JZLlho3s752QRNuwvrBsigl kkhvoTaW9Co6P3wBTnA+eEf+nwZ119MpVnWlwkUf7jLetLPfFsqHwjFutxGK1yh8 m4eSR3sdj2yqDDruCBCVGe8DtHGeZRaAzqW00qOdfWx525u+LdcY8FQWU1kpv/4a mRqTu6IdcPCI6IIxqD4e4mXk1Mq1LeqgWvLwY43lfkBKQ8+GEy8M/off9SF2YReU Xc7ZuSOlLix8nBhw58I1PHqG+JcaUAkLmYnONgr3mlI9E/Ew== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3ypbp3sfb7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 11 Jun 2024 09:39:49 +0200 (MEST) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 181D640052; Tue, 11 Jun 2024 09:39:41 +0200 (CEST) Received: from Webmail-eu.st.com (eqndag1node5.st.com [10.75.129.134]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 2207620FA2A; Tue, 11 Jun 2024 09:39:09 +0200 (CEST) Received: from SAFDAG1NODE1.st.com (10.75.90.17) by EQNDAG1NODE5.st.com (10.75.129.134) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 11 Jun 2024 09:39:08 +0200 Received: from localhost (10.48.86.121) by SAFDAG1NODE1.st.com (10.75.90.17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 11 Jun 2024 09:39:08 +0200 From: Arnaud Pouliquen To: Bjorn Andersson , Mathieu Poirier , Jens Wiklander , "Rob Herring" , Krzysztof Kozlowski , Conor Dooley CC: , , , , , , Arnaud Pouliquen Subject: [PATCH v7 0/5] Introduction of a remoteproc tee to load signed firmware Date: Tue, 11 Jun 2024 09:38:59 +0200 Message-ID: <20240611073904.475019-1-arnaud.pouliquen@foss.st.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-remoteproc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SAFCAS1NODE1.st.com (10.75.90.11) To SAFDAG1NODE1.st.com (10.75.90.17) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-11_03,2024-06-11_01,2024-05-17_01 Main updates from version V6: ------------------------------------------ - Fix kernel robot build report on in tee_rproc_find_loaded_rsc_table() inline default definition. Main updates from version V5[1][2]: ------------------------------------------ 1) Rework resource table management - Rework tee_rproc_parse_fw to temporary map the resource table address to create a cached_table (similar to what is done in rproc_elf_load_rsc_table()). - Rename tee_rproc_get_loaded_rsc_table to tee_rproc_find_loaded_rsc_table - Introduce rproc_pa_to_va() allowing to translate the resource table physical address to virtual address based on remoteproc carveouts. 2) Merge the 2 "st,stm32-rproc.yaml" bindings patch in one As the st,rproc-id" is linked to the introduction of the "st,stm32mp1-m4-tee" compatible, merge following patches to address Krzysztof concern. - [PATCH v5 2/7] dt-bindings: remoteproc: Add compatibility for TEE support - [PATCH v5 3/7] dt-bindings: remoteproc: Add processor identifier property More details on updates are listed in commits messages. [1] https://lore.kernel.org/lkml/Zlil4YSjHxb0FRgf@p14s/T/ [2] https://lore.kernel.org/lkml/20240521122458.3517054-1-arnaud.pouliquen@foss.st.com/ base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 Description of the feature: -------------------------- This series proposes the implementation of a remoteproc tee driver to communicate with a TEE trusted application responsible for authenticating and loading the remoteproc firmware image in an Arm secure context. 1) Principle: The remoteproc tee driver provides services to communicate with the OP-TEE trusted application running on the Trusted Execution Context (TEE). The trusted application in TEE manages the remote processor lifecycle: - authenticating and loading firmware images, - isolating and securing the remote processor memories, - supporting multi-firmware (e.g., TF-M + Zephyr on a Cortex-M33), - managing the start and stop of the firmware by the TEE. 2) Format of the signed image: Refer to: https://github.com/OP-TEE/optee_os/blob/master/ta/remoteproc/src/remoteproc_core.c#L18-L57 3) OP-TEE trusted application API: Refer to: https://github.com/OP-TEE/optee_os/blob/master/ta/remoteproc/include/ta_remoteproc.h 4) OP-TEE signature script Refer to: https://github.com/OP-TEE/optee_os/blob/master/scripts/sign_rproc_fw.py Example of usage: sign_rproc_fw.py --in --in --out --key ${OP-TEE_PATH}/keys/default.pem 5) Impact on User space Application No sysfs impact.the user only needs to provide the signed firmware image instead of the ELF image. For more information about the implementation, a presentation is available here (note that the format of the signed image has evolved between the presentation and the integration in OP-TEE). https://resources.linaro.org/en/resource/6c5bGvZwUAjX56fvxthxds Arnaud Pouliquen (5): remoteproc: core: Introduce rproc_pa_to_va helper remoteproc: Add TEE support dt-bindings: remoteproc: Add compatibility for TEE support remoteproc: stm32: Create sub-functions to request shutdown and release remoteproc: stm32: Add support of an OP-TEE TA to load the firmware .../bindings/remoteproc/st,stm32-rproc.yaml | 58 ++- drivers/remoteproc/Kconfig | 10 + drivers/remoteproc/Makefile | 1 + drivers/remoteproc/remoteproc_core.c | 74 ++- drivers/remoteproc/stm32_rproc.c | 147 ++++-- drivers/remoteproc/tee_remoteproc.c | 451 ++++++++++++++++++ include/linux/remoteproc.h | 7 + include/linux/tee_remoteproc.h | 100 ++++ 8 files changed, 802 insertions(+), 46 deletions(-) create mode 100644 drivers/remoteproc/tee_remoteproc.c create mode 100644 include/linux/tee_remoteproc.h base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0