From patchwork Wed Oct 9 08:01:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaud Pouliquen X-Patchwork-Id: 13827685 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) (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 A0EAA1714AF; Wed, 9 Oct 2024 08:03:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.132.182.106 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728461036; cv=none; b=AbmPD6H54qcjy97zQ4pLojTwv8lY8LXG1mhHL2HLZL4AWq1Dc55QYIhwBiKNH02Vhbi7d8UswqBiX3/01ITnvOmvFT6u04xFqQq1kJyF3NEqtKrUSGU/PEL9AyEUDLjgMFR/bq+K5IR9bsbT8n4jBGtTf9AjmUh/F+/svjXMjwE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728461036; c=relaxed/simple; bh=F/74OTVvaoAvQgdtSaWAf+fol44XumgT8YWgYSZoUcM=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=EIYGTz/pkcwC2njVpyFEzeUDgIEEWwuhQzyUMW6wLmWBZbZ1aeMlsu59OtRG0CpotEjmQ5H08rtnnJ3Eo+k5pIxea40r//ISY5m6cqRHr2SXJPxMFQGCExZxrqxfUyK5mYXTyKZrXICW/MrDt8fYHpfoeJHXE9qWpavrT5CMh5A= 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=kFCuLbeM; arc=none smtp.client-ip=185.132.182.106 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="kFCuLbeM" Received: from pps.filterd (m0369458.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4995evbS025759; Wed, 9 Oct 2024 10:03:22 +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=3uAma6b5+gPHWZkUYZOQ9v vdFnpqFDmgkFuZHup+H1A=; b=kFCuLbeMQikeFjKHo/ij9xJHkFI4qBDfZjqSrA qUJ7OloheciVW2Q6OTY5K2RWw8PR/RxASfrMEgkWCOaOvxwYOqszcJJorih29An3 NIEfXkd4qAAqzcu05wDBZ15H644nYs1SlNKAqffHQvBtQMueRmv6ugOcvGyamnHK jhfKbLzhw7GYLIvXjVZ6JzggAdOK0HNKgdU+8MF+x1PxcZvUcYcUtvtNfcgW5b4F yKC+LESp+LAVE7D2vkLmu74SdEtgi4QQwaeXRQXH+DabFGghOYnAtToYvzR4w3sB 1gu7DyK9RY+L1/8afkgnk6OQpxzJbN15W3UXsYkYVEBO/ucQ== 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 423f10yrdr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 09 Oct 2024 10:03:22 +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 870EA40050; Wed, 9 Oct 2024 10:02:12 +0200 (CEST) Received: from Webmail-eu.st.com (eqndag1node5.st.com [10.75.129.134]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id C3404219BAB; Wed, 9 Oct 2024 10:01:23 +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 15.1.2507.37; Wed, 9 Oct 2024 10:01:23 +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 15.1.2507.37; Wed, 9 Oct 2024 10:01:23 +0200 From: Arnaud Pouliquen To: Bjorn Andersson , Mathieu Poirier , Jens Wiklander , "Rob Herring" , Krzysztof Kozlowski , Conor Dooley CC: , , , , , , Arnaud Pouliquen Subject: [PATCH v11 0/7] Introduction of a remoteproc tee to load signed firmware Date: Wed, 9 Oct 2024 10:01:01 +0200 Message-ID: <20241009080108.4170320-1-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:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 Main updates from version V10[1]: - remove "select REMOTEPROC_TEE" in STM32_RPROC config to fix kernel robot To keep history of the updates I have kept in each patches the description of the updates versus the V9[2] revision. Main updates from version V9[2]: - Introduce release_fw remoteproc ops to avoid direct call of tee_rproc_release_fw() in remoteproc_core.c: - allow to remove link between remoteproc and remoteproc_tee - allow to build the remoteproc_tee as a module [1] https://lore.kernel.org/linux-arm-kernel/ZwVATlRbo0OdRLbj@p14s/T/ [2] https://lore.kernel.org/linux-arm-kernel/ZuMIEp4cVrp1hWa7@p14s/T/ Tested-on: commit 9852d85ec9d4 ("Linux 6.12-rc1") 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 (7): remoteproc: core: Introduce rproc_pa_to_va helper remoteproc: Add TEE support remoteproc: core: Refactor resource table cleanup into rproc_release_fw remoteproc: Introduce release_fw optional operation 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 | 72 ++- drivers/remoteproc/remoteproc_tee.c | 506 ++++++++++++++++++ drivers/remoteproc/stm32_rproc.c | 145 +++-- include/linux/remoteproc.h | 8 + include/linux/remoteproc_tee.h | 107 ++++ 8 files changed, 852 insertions(+), 55 deletions(-) create mode 100644 drivers/remoteproc/remoteproc_tee.c create mode 100644 include/linux/remoteproc_tee.h base-commit: 9852d85ec9d492ebef56dc5f229416c925758edc