From: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
To: Bjorn Andersson <andersson@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Jens Wiklander <jens.wiklander@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: <linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-remoteproc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<op-tee@lists.trustedfirmware.org>, <devicetree@vger.kernel.org>,
Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Subject: [PATCH v2 0/4] Introduction of a remoteproc tee to load signed firmware
Date: Thu, 18 Jan 2024 11:04:29 +0100 [thread overview]
Message-ID: <20240118100433.3984196-1-arnaud.pouliquen@foss.st.com> (raw)
Updates from the previous version [1]
- fix issues reported by kernel test robot,
- address Rob Herring comment on bindings.
[1] https://lore.kernel.org/linux-arm-kernel/20240115135249.296822-1-arnaud.pouliquen@foss.st.com/T/
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 <fw1.elf> --in <fw2.elf> --out <signed_fw.sign> --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 (4):
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 | 52 ++-
drivers/remoteproc/Kconfig | 9 +
drivers/remoteproc/Makefile | 1 +
drivers/remoteproc/stm32_rproc.c | 233 +++++++++--
drivers/remoteproc/tee_remoteproc.c | 393 ++++++++++++++++++
include/linux/tee_remoteproc.h | 99 +++++
6 files changed, 740 insertions(+), 47 deletions(-)
create mode 100644 drivers/remoteproc/tee_remoteproc.c
create mode 100644 include/linux/tee_remoteproc.h
base-commit: 0dd3ee31125508cd67f7e7172247f05b7fd1753a
--
2.25.1
next reply other threads:[~2024-01-18 10:05 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-18 10:04 Arnaud Pouliquen [this message]
2024-01-18 10:04 ` [PATCH v2 1/4] remoteproc: Add TEE support Arnaud Pouliquen
2024-01-25 18:55 ` Mathieu Poirier
2024-01-26 13:39 ` Arnaud POULIQUEN
2024-01-26 16:04 ` Mathieu Poirier
2024-01-26 18:03 ` Mathieu Poirier
2024-01-29 18:55 ` Mathieu Poirier
2024-01-30 8:15 ` Arnaud POULIQUEN
2024-01-18 10:04 ` [PATCH v2 2/4] dt-bindings: remoteproc: Add compatibility for " Arnaud Pouliquen
2024-01-26 11:03 ` Krzysztof Kozlowski
2024-01-26 13:59 ` Arnaud POULIQUEN
2024-01-30 17:21 ` Rob Herring
2024-01-30 17:51 ` Rob Herring
2024-02-13 15:38 ` Arnaud POULIQUEN
2024-01-18 10:04 ` [PATCH v2 3/4] remoteproc: stm32: Create sub-functions to request shutdown and release Arnaud Pouliquen
2024-01-18 10:04 ` [PATCH v2 4/4] remoteproc: stm32: Add support of an OP-TEE TA to load the firmware Arnaud Pouliquen
2024-01-26 17:11 ` Mathieu Poirier
2024-01-30 9:13 ` Arnaud POULIQUEN
2024-01-31 18:52 ` Mathieu Poirier
2024-02-01 15:06 ` Arnaud POULIQUEN
2024-02-01 16:02 ` Mathieu Poirier
2024-02-01 18:33 ` Arnaud POULIQUEN
2024-02-02 19:53 ` Mathieu Poirier
2024-02-05 9:13 ` Arnaud POULIQUEN
2024-02-13 15:47 ` [Linux-stm32] " Arnaud POULIQUEN
2024-02-13 18:39 ` Mathieu Poirier
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