[PATCH v2 0/6] introduce Arm FF-A support

abdellatif.elkhlifi
2022-04-15T12:28:32Z

From: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>

This patchset adds support for Arm FF-A (Arm Firmware Framework for Armv8-A v1.0).

FF-A support is generic by design and can be used by any Arm platform.

The features added are as follows:

1/ FF-A bus driver
2/ armffa command
3/ FF-A Sandbox driver
4/ FF-A Sandbox test cases
5/ FF-A MM communication

The suggested design considers FF-A as a discoverable bus.
The Secure World is considered as one entity to communicate with using the FF-A bus.
FF-A communication is handled by one device and one instance (the bus).
This FF-A driver takes care of all the interactions between Normal world
and Secure World.

The Secure World firmware runs under TrustZone HW (such as Optee). The same approach was followed in the
FF-A driver in Linux kernel (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/firmware/arm_ffa/bus.c?h=v5.15#n211))

Cc: Tom Rini <trini@konsulko.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Achin Gupta <achin.gupta@arm.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Vishnu Banavath <vishnu.banavath@arm.com>

Abdellatif El Khlifi (6):
arm_ffa: introduce Arm FF-A low-level driver
arm_ffa: introduce armffa command
arm_ffa: introduce the FF-A Sandbox driver
arm_ffa: introduce Sandbox test cases for UCLASS_FFA
arm_ffa: introduce armffa command Sandbox test
arm_ffa: introduce FF-A MM communication

MAINTAINERS | 15 +
arch/arm/cpu/armv8/cache.S | 16 +
arch/arm/cpu/armv8/cache_v8.c | 3 +-
arch/arm/cpu/armv8/smccc-call.S | 27 +
arch/arm/lib/asm-offsets.c | 6 +
cmd/Kconfig | 10 +
cmd/Makefile | 2 +
cmd/armffa.c | 266 +++++
common/board_r.c | 7 +
configs/sandbox64_defconfig | 2 +
configs/sandbox_defconfig | 2 +
doc/arch/sandbox.rst | 1 +
drivers/Kconfig | 2 +
drivers/Makefile | 1 +
drivers/arm-ffa/Kconfig | 34 +
drivers/arm-ffa/Makefile | 7 +
drivers/arm-ffa/arm-ffa-uclass.c | 103 ++
drivers/arm-ffa/arm_ffa_prv.h | 193 ++++
drivers/arm-ffa/core.c | 1384 +++++++++++++++++++++++++
drivers/arm-ffa/sandbox.c | 669 ++++++++++++
drivers/arm-ffa/sandbox_arm_ffa_prv.h | 131 +++
include/arm_ffa.h | 197 ++++
include/arm_ffa_helper.h | 45 +
include/dm/uclass-id.h | 1 +
include/linux/arm-smccc.h | 28 +-
include/mm_communication.h | 4 +-
include/sandbox_arm_ffa.h | 31 +
include/sandbox_arm_ffa_helper.h | 26 +
lib/Kconfig | 1 +
lib/Makefile | 1 +
lib/arm-ffa/Kconfig | 6 +
lib/arm-ffa/Makefile | 9 +
lib/arm-ffa/arm_ffa_helper.c | 188 ++++
lib/arm-ffa/sandbox_arm_ffa_helper.c | 23 +
lib/efi_loader/Kconfig | 14 +-
lib/efi_loader/efi_boottime.c | 17 +
lib/efi_loader/efi_variable_tee.c | 281 ++++-
test/cmd/Makefile | 1 +
test/cmd/armffa.c | 33 +
test/cmd/armffa.h | 13 +
test/dm/Makefile | 1 +
test/dm/ffa.c | 418 ++++++++
test/dm/ffa.h | 22 +
43 files changed, 4230 insertions(+), 11 deletions(-)
create mode 100644 cmd/armffa.c
create mode 100644 drivers/arm-ffa/Kconfig
create mode 100644 drivers/arm-ffa/Makefile
create mode 100644 drivers/arm-ffa/arm-ffa-uclass.c
create mode 100644 drivers/arm-ffa/arm_ffa_prv.h
create mode 100644 drivers/arm-ffa/core.c
create mode 100644 drivers/arm-ffa/sandbox.c
create mode 100644 drivers/arm-ffa/sandbox_arm_ffa_prv.h
create mode 100644 include/arm_ffa.h
create mode 100644 include/arm_ffa_helper.h
create mode 100644 include/sandbox_arm_ffa.h
create mode 100644 include/sandbox_arm_ffa_helper.h
create mode 100644 lib/arm-ffa/Kconfig
create mode 100644 lib/arm-ffa/Makefile
create mode 100644 lib/arm-ffa/arm_ffa_helper.c
create mode 100644 lib/arm-ffa/sandbox_arm_ffa_helper.c
create mode 100644 test/cmd/armffa.c
create mode 100644 test/cmd/armffa.h
create mode 100644 test/dm/ffa.c
create mode 100644 test/dm/ffa.h

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2.17.1