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. As such I will wait for the next revision to look at it. Thanks, Mathieu > > -- > 2.25.1 >
