Hi Jens, On Wed, 16 Jun 2021 at 16:07, Jens Wiklander <jens.wiklander@xxxxxxxxxx> wrote: > > Hi all, > > This adds support for asynchronous notifications from OP-TEE in secure > world to the OP-TEE driver. This allows a design with a top half and bottom > half type of driver where the top half runs in secure interrupt context and > a notifications tells normal world to schedule a yielding call to do the > bottom half processing. > > An interrupt is used to notify the driver that there are asynchronous > notifications pending. > It looks like a nice feature. I would like to get hands on with this. Can I test this feature on Qemu? -Sumit > v2: > * Added documentation > * Converted optee bindings to json-schema and added interrupt property > * Configure notification interrupt from DT instead of getting it > from secure world, suggested by Ard Biesheuvel <ardb@xxxxxxxxxx>. > > Thanks, > Jens > > Jens Wiklander (7): > docs: staging/tee.rst: add a section on OP-TEE notifications > dt-bindings: arm: Convert optee binding to json-schema > dt-bindings: arm: optee: add interrupt property > tee: fix put order in teedev_close_context() > tee: add tee_dev_open_helper() primitive > optee: separate notification functions > optee: add asynchronous notifications > > .../bindings/arm/firmware/linaro,optee-tz.txt | 31 --- > .../arm/firmware/linaro,optee-tz.yaml | 57 +++++ > Documentation/staging/tee.rst | 27 +++ > drivers/tee/optee/Makefile | 1 + > drivers/tee/optee/call.c | 27 +++ > drivers/tee/optee/core.c | 87 +++++-- > drivers/tee/optee/notif.c | 226 ++++++++++++++++++ > drivers/tee/optee/optee_msg.h | 9 + > drivers/tee/optee/optee_private.h | 23 +- > drivers/tee/optee/optee_rpc_cmd.h | 31 +-- > drivers/tee/optee/optee_smc.h | 75 +++++- > drivers/tee/optee/rpc.c | 73 +----- > drivers/tee/tee_core.c | 37 ++- > include/linux/tee_drv.h | 27 +++ > 14 files changed, 576 insertions(+), 155 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.txt > create mode 100644 Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.yaml > create mode 100644 drivers/tee/optee/notif.c > > -- > 2.31.1 >
