user/sven/linux.git/include/linux/tee_drv.h, branch v5.10.32

driver: tee: Handle NULL pointer indication from client

2020-08-21T06:55:13Z

TEE Client introduce a new capability "TEE_GEN_CAP_MEMREF_NULL" to handle the support of the shared memory buffer with a NULL pointer. This capability depends on TEE Capabilities and driver support. Driver and TEE exchange capabilities at driver initialization. Signed-off-by: Michael Whitfield Signed-off-by: Cedric Neveux Reviewed-by: Joakim Bech Tested-by: Joakim Bech (QEMU) Signed-off-by: Jens Wiklander

Merge tag 'tee-login-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

2020-05-25T21:15:03Z

Adds utility function in TEE subsystem for client UUID generation. This function is also used in the optee driver. * tag 'tee-login-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee: tee: optee: Add support for session login client UUID generation tee: add support for session's client UUID generation Link: https://lore.kernel.org/r/20200512131243.GA10028@jade Signed-off-by: Arnd Bergmann

tee: add support for session's client UUID generation

2020-05-11T12:11:26Z

TEE Client API defines that from user space only information needed for specified login operations is group identifier for group based logins. REE kernel is expected to formulate trustworthy client UUID and pass that to TEE environment. REE kernel is required to verify that provided group identifier for group based logins matches calling processes group memberships. TEE specification only defines that the information passed from REE environment to TEE environment is encoded into on UUID. In order to guarantee trustworthiness of client UUID user space is not allowed to freely pass client UUID. UUIDv5 form is used encode variable amount of information needed for different login types. Signed-off-by: Vesa Jääskeläinen [jw: remove unused variable application_id] Signed-off-by: Jens Wiklander

tee: enable support to register kernel memory

2020-04-20T13:49:56Z

Enable support to register kernel memory reference with TEE. This change will allow TEE bus drivers to register memory references. Signed-off-by: Sumit Garg Signed-off-by: Jens Wiklander

tee: remove redundant teedev in struct tee_shm

2020-02-28T12:37:42Z

The ctx element in struct tee_shm is always valid. So remove the now redundant teedev element. Signed-off-by: Jens Wiklander

tee: remove unused tee_shm_priv_alloc()

2020-02-28T12:37:42Z

tee_shm_priv_alloc() isn't useful in the current state and it's also not not used so remove it. Signed-off-by: Jens Wiklander

tee: remove linked list of struct tee_shm

2020-02-28T12:37:42Z

Removes list_shm from struct tee_context since the linked list isn't used any longer. Signed-off-by: Jens Wiklander

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282

2019-06-05T15:36:37Z

Based on 1 normalized pattern(s): this software is licensed under the terms of the gnu general public license version 2 as published by the free software foundation and may be copied distributed and modified under those terms this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 285 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de Signed-off-by: Greg Kroah-Hartman

tee: add cancellation support to client interface

2019-02-28T12:49:29Z

Add support of cancellation request to the TEE kernel internal client interface. Can be used by software TPM drivers, that leverage TEE under the hood (for instance TPM2.0 mobile profile), for requesting cancellation of time-consuming operations (RSA key-pair generation etc.). Signed-off-by: Igor Opaniuk Signed-off-by: Jens Wiklander

tee: add bus driver framework for TEE based devices

2019-02-01T14:12:46Z

Introduce a generic TEE bus driver concept for TEE based kernel drivers which would like to communicate with TEE based devices/services. Also add support in module device table for these new TEE based devices. In this TEE bus concept, devices/services are identified via Universally Unique Identifier (UUID) and drivers register a table of device UUIDs which they can support. So this TEE bus framework registers following apis: - match(): Iterates over the driver UUID table to find a corresponding match for device UUID. If a match is found, then this particular device is probed via corresponding probe api registered by the driver. This process happens whenever a device or a driver is registered with TEE bus. - uevent(): Notifies user-space (udev) whenever a new device is registered on this bus for auto-loading of modularized drivers. Also this framework allows for device enumeration to be specific to corresponding TEE implementation like OP-TEE etc. Signed-off-by: Sumit Garg Reviewed-by: Daniel Thompson Reviewed-by: Bhupesh Sharma Signed-off-by: Jens Wiklander