From: Abdellatif El Khlifi abdellatif.elkhlifi@arm.com
Add to the FF-A bus FFA_MEM_SHARE and FFA_MEM_RECLAIM ABIs.
These FF-A ABIs are for memory management. They are used for sharing memory between U-Boot and secure world.
FFA_MEM_SHARE starts a transaction to grant access to a memory region to one or more Borrowers (aka Secure Partitions or endpoints). FFA_MEM_RECLAIM restores exclusive access to a memory region back to its Owner (U-Boot).
For more details about these ABIs please refer to the FF-A v1.0 specification [1]. For more details about FF-A in U-Boot please refer to the readme [2].
This work is based on the implementation in Linux kernel [3].
This work is provided with sandbox support (emulation and test cases).
[1]: https://developer.arm.com/documentation/den0077/a/?lang=en [2]: doc/arch/arm64.ffa.rst [3]: commit cc2195fe536c28e192df5d07e6dd277af36814b4 Files: drivers/firmware/arm_ffa/driver.c , include/linux/arm_ffa.h
Cc: Tom Rini trini@konsulko.com Cc: Simon Glass sjg@chromium.org Cc: Ilias Apalodimas ilias.apalodimas@linaro.org Cc: Jens Wiklander jens.wiklander@linaro.org Cc: Achin Gupta achin.gupta@arm.com Cc: Drew Reed Drew.Reed@arm.com Cc: Hugues Kamba Mpiana Hugues.KambaMpiana@arm.com
Cheers, Abdellatif
Abdellatif El Khlifi (8): arm_ffa: Add NULL pointer check to the driver operations arm_ffa: Add FFA_MEM_SHARE support arm_ffa: Add FFA_MEM_RECLAIM support arm_ffa: sandbox: Replace the emulator error log with debug log arm_ffa: sandbox: Add FFA_MEM_SHARE emulation arm_ffa: sandbox: Add FFA_MEM_SHARE tests arm_ffa: sandbox: Add FFA_MEM_RECLAIM emulation arm_ffa: sandbox: Add FFA_MEM_RECLAIM tests
.../include/asm/sandbox_arm_ffa_priv.h | 5 +- doc/arch/arm64.ffa.rst | 4 + drivers/firmware/arm-ffa/arm-ffa-uclass.c | 286 +++++++++++++++++- drivers/firmware/arm-ffa/arm-ffa.c | 4 +- drivers/firmware/arm-ffa/ffa-emul-uclass.c | 92 +++++- drivers/firmware/arm-ffa/sandbox_ffa.c | 4 +- include/arm_ffa.h | 111 ++++++- include/arm_ffa_priv.h | 143 ++++++++- test/dm/ffa.c | 73 ++++- 9 files changed, 707 insertions(+), 15 deletions(-)
base-commit: 28dc47038edc4e93f32d75a357131bcf01a18d85