Hosts the 0x221E linux distro kernel. https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-rolling-stable 2024-09-09T10:22:06Z 2024-09-09T10:22:06Z Dan Carpenter dan.carpenter@linaro.org 2024-09-05T13:17:06Z urn:sha1:73048a832587520c6222bacbe1bc7121409d8861 The tee_shm_get_va() function never returns NULL, it returns error pointers. Update the check to match. Fixes: f0c8431568ee ("optee: probe RPMB device using RPMB subsystem") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org> Link: https://lore.kernel.org/r/f8c12aed-b5d1-4522-bf95-622b8569706d@stanley.mountain Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> 2024-08-26T11:16:20Z Jens Wiklander jens.wiklander@linaro.org 2024-08-14T15:35:58Z urn:sha1:f0c8431568eedee7705c92f5c341bdc4567e3ad5 Adds support in the OP-TEE drivers (both SMC and FF-A ABIs) to probe and use an RPMB device via the RPMB subsystem instead of passing the RPMB frames via tee-supplicant in user space. A fallback mechanism is kept to route RPMB frames via tee-supplicant if the RPMB subsystem isn't available. The OP-TEE RPC ABI is extended to support iterating over all RPMB devices until one is found with the expected RPMB key already programmed. Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> Tested-by: Manuel Traut <manut@mecka.net> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Link: https://lore.kernel.org/r/20240814153558.708365-5-jens.wiklander@linaro.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> 2024-06-27T14:44:37Z Arnd Bergmann arnd@arndb.de 2024-06-27T14:44:37Z urn:sha1:30c577a852c4ca77fedb1730c4546d9033beeb90 optee: add timeout parameter for notification wait * tag 'optee-notif-wait-timeout-for-v6.11' of https://git.linaro.org/people/jens.wiklander/linux-tee: optee: add timeout value to optee_notif_wait() to support timeout Link: https://lore.kernel.org/r/20240627095325.GA2585076@rayden Signed-off-by: Arnd Bergmann <arnd@arndb.de> 2024-05-30T08:19:28Z Gavin Liu gavin.liu@mediatek.com 2024-05-07T02:00:37Z urn:sha1:14ca6401d8703725c7297dcc4bf8de73323411ac Add timeout value to support self waking when timeout to avoid waiting indefinitely. Signed-off-by: Gavin Liu <gavin.liu@mediatek.com> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> 2024-04-03T07:19:31Z Sumit Garg sumit.garg@linaro.org 2024-03-25T15:11:01Z urn:sha1:0439fcff304acdedfc493dbf900dce86922fd31f Since commit 25559c22cef8 ("tee: add kernel internal client interface"), it has been a common include/linux/tee_drv.h header file which is shared to hold TEE subsystem internal bits along with the APIs exposed to the TEE client drivers. However, this practice is prone to TEE subsystem internal APIs abuse and especially so with the new TEE implementation drivers being added to reuse existing functionality. In order to address this split TEE subsystem internal bits as a separate header file: include/linux/tee_core.h which should be the one used by TEE implementation drivers. With that include/linux/tee_drv.h lists only APIs exposed by TEE subsystem to the TEE client drivers. Signed-off-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Balint Dobszay <balint.dobszay@arm.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> 2021-11-17T13:08:56Z Jens Wiklander jens.wiklander@linaro.org 2021-06-15T20:23:53Z urn:sha1:787c80cc7b22804aa370f04a19f9fe0fa98b1e49 Renames struct optee_wait_queue to struct optee_notif and all related functions to optee_notif_*(). The implementation is changed to allow sending a notification from an atomic state, that is from the top half of an interrupt handler. Waiting for keys is currently only used when secure world is waiting for a mutex or condition variable. The old implementation could handle any 32-bit key while this new implementation is restricted to only 8 bits or the maximum value 255. A upper value is needed since a bitmap is allocated to allow an interrupt handler to only set a bit in case the waiter hasn't had the time yet to allocate and register a completion. The keys are currently only representing secure world threads which number usually are never even close to 255 so it should be safe for now. In future ABI updates the maximum value of the key will be communicated while the driver is initializing. Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> 2021-10-18T09:44:23Z Jens Wiklander jens.wiklander@linaro.org 2021-07-21T14:30:28Z urn:sha1:c51a564a5b48355f30309b84cdffe3f96d1ae0d3 Isolate the ABI based on raw SMCs. Code specific to the raw SMC ABI is moved into smc_abi.c. This makes room for other ABIs with a clear separation. The driver changes to use module_init()/module_exit() instead of module_platform_driver(). The platform_driver_register() and platform_driver_unregister() functions called directly to keep the same behavior. This is needed because module_platform_driver() is based on module_driver() which can only be used once in a module. A function optee_rpc_cmd() is factored out from the function handle_rpc_func_cmd() to handle the ABI independent part of RPC processing. This patch is not supposed to change the driver behavior, it's only a matter of reorganizing the code. Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> 2021-10-15T09:55:42Z Jens Wiklander jens.wiklander@linaro.org 2021-03-25T14:08:50Z urn:sha1:4602c5842f649da2fbd2cea3560af750cfbd59e3 The OP-TEE driver is refactored with three internal callbacks replacing direct calls to optee_from_msg_param(), optee_to_msg_param() and optee_do_call_with_arg(). These functions a central to communicating with OP-TEE in secure world by using the SMC Calling Convention directly. This refactoring makes room for using other primitives to communicate with OP-TEE in secure world while being able to reuse as much as possible from the present driver. Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> 2021-07-21T05:55:50Z Sumit Garg sumit.garg@linaro.org 2021-06-14T22:33:15Z urn:sha1:376e4199e327a5cf29b8ec8fb0f64f3d8b429819 Currently TEE_SHM_DMA_BUF flag has been inappropriately used to not register shared memory allocated for private usage by underlying TEE driver: OP-TEE in this case. So rather add a new flag as TEE_SHM_PRIV that can be utilized by underlying TEE drivers for private allocation and usage of shared memory. With this corrected, allow tee_shm_alloc_kernel_buf() to allocate a shared memory region without the backing of dma-buf. Cc: stable@vger.kernel.org Signed-off-by: Sumit Garg <sumit.garg@linaro.org> Co-developed-by: Tyler Hicks <tyhicks@linux.microsoft.com> Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com> Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> 2021-02-09T15:10:49Z Arnd Bergmann arnd@arndb.de 2021-02-09T15:09:32Z urn:sha1:d0236f17c31981b07f21eb824da10fabc7f0d8f8 Simplify i2c acess in OP-TEE driver * tag 'optee-simplify-i2c-access_for-v5.12' of git://git.linaro.org/people/jens.wiklander/linux-tee: optee: simplify i2c access Link: https://lore.kernel.org/soc/20210208125853.GA288348%40jade Signed-off-by: Arnd Bergmann <arnd@arndb.de>