So far, barebox interaction by OP-TEE was limited to loading it and
maybe passing along its device tree fixup. In some scenarios, there
is a lot more that could need to be done however:
- Access to eMMC RPMB memory
- Access to keys stored in OP-TEE, e.g. in Trusted Keys TA or
in fTPM
- Access to hardware managed by OP-TEE via e.g. PRNG TA
Let's prepare for all that by importing the Linux v6.6 OP-TEE support
into barebox. This series has been tested on STM3MP15 and STM32MP13
32-bit ARM SoCs, where OP-TEE functioned as SCMI provider, restricting
access to some clocks, resets and regulators deemed too important to
let pesky normal world have direct access to them.
Ahmad Fatoum (5):
driver: don't clear unrelated struct device_node::device on unregister
deep-probe: don't panic when device can't be created
deep-probe: skip on-demand platform dev creation for nodes without
compatible
devinfo: indicate if device tree nodes are differently populated
hw_random: add implementation for OP-TEE RNG pseudo TA
Marc Kleine-Budde (3):
include: uaccess.h: import from linux
optee: add bidirectional communication support
optee: add experimental support for /dev/tee0
commands/devinfo.c | 13 +-
common/Kconfig | 5 +
drivers/Kconfig | 1 +
drivers/Makefile | 2 +-
drivers/base/driver.c | 7 +-
drivers/hw_random/Kconfig | 9 +
drivers/hw_random/Makefile | 1 +
drivers/hw_random/optee-rng.c | 302 ++++++++++
drivers/of/platform.c | 13 +-
drivers/tee/Kconfig | 17 +
drivers/tee/Makefile | 5 +
drivers/tee/optee/Kconfig | 29 +
drivers/tee/optee/Makefile | 8 +
drivers/tee/optee/call.c | 239 ++++++++
drivers/tee/optee/core.c | 68 +++
drivers/tee/optee/device.c | 174 ++++++
drivers/tee/optee/{of.c => of_fixup.c} | 0
drivers/tee/optee/optee_msg.h | 295 +++++++++
drivers/tee/optee/optee_private.h | 179 ++++++
drivers/tee/optee/optee_smc.h | 473 +++++++++++++++
drivers/tee/optee/rpc.c | 16 +
drivers/tee/optee/smc_abi.c | 748 +++++++++++++++++++++++
drivers/tee/tee_core.c | 801 +++++++++++++++++++++++++
drivers/tee/tee_private.h | 50 ++
drivers/tee/tee_shm.c | 338 +++++++++++
include/asm-generic/uaccess.h | 205 +++++++
include/linux/mod_devicetable.h | 10 +
include/linux/tee_drv.h | 418 +++++++++++++
include/linux/uaccess.h | 38 ++
include/uapi/linux/tee.h | 407 +++++++++++++
30 files changed, 4860 insertions(+), 11 deletions(-)
create mode 100644 drivers/hw_random/optee-rng.c
create mode 100644 drivers/tee/Kconfig
create mode 100644 drivers/tee/Makefile
create mode 100644 drivers/tee/optee/Kconfig
create mode 100644 drivers/tee/optee/Makefile
create mode 100644 drivers/tee/optee/call.c
create mode 100644 drivers/tee/optee/core.c
create mode 100644 drivers/tee/optee/device.c
rename drivers/tee/optee/{of.c => of_fixup.c} (100%)
create mode 100644 drivers/tee/optee/optee_msg.h
create mode 100644 drivers/tee/optee/optee_private.h
create mode 100644 drivers/tee/optee/optee_smc.h
create mode 100644 drivers/tee/optee/rpc.c
create mode 100644 drivers/tee/optee/smc_abi.c
create mode 100644 drivers/tee/tee_core.c
create mode 100644 drivers/tee/tee_private.h
create mode 100644 drivers/tee/tee_shm.c
create mode 100644 include/asm-generic/uaccess.h
create mode 100644 include/linux/tee_drv.h
create mode 100644 include/linux/uaccess.h
create mode 100644 include/uapi/linux/tee.h
--
2.39.2
