On Mon, Mar 25, 2024 at 4:11 PM Balint Dobszay <balint.dobszay@xxxxxxx> wrote: > > This series introduces a TEE driver for Trusted Services [1]. > > Trusted Services is a TrustedFirmware.org project that provides a > framework for developing and deploying device Root of Trust services in > FF-A [2] Secure Partitions. The project hosts the reference > implementation of Arm Platform Security Architecture [3] for Arm > A-profile devices. > > The FF-A Secure Partitions are accessible through the FF-A driver in > Linux. However, the FF-A driver doesn't have a user space interface so > user space clients currently cannot access Trusted Services. The goal of > this TEE driver is to bridge this gap and make Trusted Services > functionality accessible from user space. > > Changelog: > v3[7] -> v4: > - Remove unnecessary callbacks from tstee_ops > - Add maintainers entry for the new driver > > v2[6] -> v3: > - Add patch "tee: Refactor TEE subsystem header files" from Sumit > - Remove unnecessary includes from core.c > - Remove the mutex from "struct ts_context_data" since the same > mechanism could be implemented by reusing the XArray's internal lock > - Rename tee_shm_pool_op_*_helper functions as suggested by Sumit > - Replace pr_* with dev_* as previously suggested by Krzysztof > > v1[5] -> v2: > - Refactor session handling to use XArray instead of IDR and linked > list (the linked list was redundant as pointed out by Jens, and IDR > is now deprecated in favor of XArray) > - Refactor tstee_probe() to not call tee_device_unregister() before > calling tee_device_register() > - Address comments from Krzysztof and Jens > - Address documentation comments from Randy > - Use module_ffa_driver() macro instead of separate module init / exit > functions > - Reformat max line length 100 -> 80 > > RFC[4] -> v1: > - Add patch for moving pool_op helper functions to the TEE subsystem, > as suggested by Jens > - Address comments from Sumit, add patch for documentation > > [1] https://www.trustedfirmware.org/projects/trusted-services/ > [2] https://developer.arm.com/documentation/den0077/ > [3] https://www.arm.com/architecture/security-features/platform-security > [4] https://lore.kernel.org/linux-arm-kernel/20230927152145.111777-1-balint.dobszay@xxxxxxx/ > [5] https://lore.kernel.org/lkml/20240213145239.379875-1-balint.dobszay@xxxxxxx/ > [6] https://lore.kernel.org/lkml/20240223095133.109046-1-balint.dobszay@xxxxxxx/ > [7] https://lore.kernel.org/lkml/20240305101745.213933-1-balint.dobszay@xxxxxxx/ > > > Balint Dobszay (4): > tee: optee: Move pool_op helper functions > tee: tstee: Add Trusted Services TEE driver > Documentation: tee: Add TS-TEE driver > MAINTAINERS: tee: tstee: Add entry > > Sumit Garg (1): > tee: Refactor TEE subsystem header files > > Documentation/tee/index.rst | 1 + > Documentation/tee/ts-tee.rst | 71 ++++ > MAINTAINERS | 10 + > drivers/tee/Kconfig | 1 + > drivers/tee/Makefile | 1 + > drivers/tee/amdtee/amdtee_private.h | 2 +- > drivers/tee/amdtee/call.c | 2 +- > drivers/tee/amdtee/core.c | 3 +- > drivers/tee/amdtee/shm_pool.c | 2 +- > drivers/tee/optee/call.c | 2 +- > drivers/tee/optee/core.c | 66 +--- > drivers/tee/optee/device.c | 2 +- > drivers/tee/optee/ffa_abi.c | 8 +- > drivers/tee/optee/notif.c | 2 +- > drivers/tee/optee/optee_private.h | 14 +- > drivers/tee/optee/rpc.c | 2 +- > drivers/tee/optee/smc_abi.c | 11 +- > drivers/tee/tee_core.c | 2 +- > drivers/tee/tee_private.h | 35 -- > drivers/tee/tee_shm.c | 66 +++- > drivers/tee/tee_shm_pool.c | 2 +- > drivers/tee/tstee/Kconfig | 11 + > drivers/tee/tstee/Makefile | 3 + > drivers/tee/tstee/core.c | 480 ++++++++++++++++++++++++++++ > drivers/tee/tstee/tstee_private.h | 92 ++++++ > include/linux/tee_core.h | 306 ++++++++++++++++++ > include/linux/tee_drv.h | 285 ++--------------- > include/uapi/linux/tee.h | 1 + > 28 files changed, 1094 insertions(+), 389 deletions(-) > create mode 100644 Documentation/tee/ts-tee.rst > create mode 100644 drivers/tee/tstee/Kconfig > create mode 100644 drivers/tee/tstee/Makefile > create mode 100644 drivers/tee/tstee/core.c > create mode 100644 drivers/tee/tstee/tstee_private.h > create mode 100644 include/linux/tee_core.h > > -- > 2.34.1 > I'm picking up this patch set. Thanks, Jens
