Tianocore/edk2-platforms.git/Drivers/OpTee, branch CodeCleanup

Drivers/OpTee: address cast build warning issue in 32b mode

2021-08-11T11:44:10+00:00

Use (UINTN) cast to cast physical or virtual address values to the pointer size before casting from/to a pointer value. Cc: Ard Biesheuvel Cc: Ilias Apalodimas Cc: Leif Lindholm Cc: Sami Mujawar Signed-off-by: Etienne Carriere

Drivers/OpTee: Add Aarch32 SVC IDs for 32bit Arm targets

2021-08-11T11:44:10+00:00

Add SMCCC function IDs for RPMB read/write service on 32bit architectures. Define generic SP_SVC_RPMB_READ/SP_SVC_RPMB_WRITE IDs for native target architecture (32b or 64b). Changes OpTeeRpmbFvb.c to use architecture agnostic macro ARM_SVC_ID_FFA_MSG_SEND_DIRECT_REQ for 32b and 64b support. Cc: Ard Biesheuvel Cc: Ilias Apalodimas Cc: Leif Lindholm Cc: Sami Mujawar Signed-off-by: Etienne Carriere

Drivers/OpTeeRpmb: Add an OP-TEE backed RPMB driver

2021-03-28T09:46:35+00:00

A following patch is adding support for building StMM in order to run it from OP-TEE. OP-TEE in combination with a NS-world supplicant can use the RPMB partition of an eMMC to store EFI variables. The supplicant functionality is currently available in U-Boot only but can be ported into EDK2. Assuming similar functionality is added in EDK2, this will allow any hardware with an RPMB partition to store EFI variables securely. So let's add a driver that enables access of the RPMB partition through OP-TEE. Since the upper layers expect a byte addressable interface, the driver allocates memory and patches the PCDs, while syncing the memory/hardware on read/write callbacks. Signed-off-by: Ilias Apalodimas Reviewed-by: Sami Mujawar