The in-kernel interface of the FF-A driver has changed with the v6.1
kernel release. The FF-A operations are now split into multiple groups,
and instead of using the ffa_dev_ops_get() function now the ops struct
can be reached directly.

This patch introduces wrapper functions around the FF-A operations to
enable using the new in-kernel interface in a backwards compatible way.

Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Change-Id: I2a223a2e079d9afc693da629fad462eb9d95b3a3

Imre Kis authored Jul 22, 2022 and Balint Dobszay committed Aug 31, 2022

Change ffa_ioctl_msg_args to have u64 args field and use the 64 bit
version of FFA_MSG_SEND_DIRECT_REQ/FFA_MSG_SEND_DIRECT_RESP.
This is a breaking change so also bumping version to v5.0.0.

Signed-off-by: Imre Kis <imre.kis@arm.com>

Pass the required memory region size as an argument, instead of using
hardcoded value.

Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Change-Id: Id7d1ee7f87ea635603800978666b64da975997f9

Imre Kis authored May 18, 2021 and Balint Dobszay committed Aug 31, 2022

Shared memory regions are referenced by the memory handle instead of
the destination ID.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: Id10ba15322a62bbda3694c007ba6fb63ca7f693a

This module is a generic test component, which doesn't contain any
specific code for a specific SP. Therefore having the compatible SP
UUIDs hardcoded is a drawback. This commit enables defining the UUIDs
(which can be bound to this driver) when loading the module. Example:

insmod arm-ffa-user.ko uuid_str_list=\
"d9df52d5-16a2-4bb2-9aa4-d26d3b84e8c0",\
"dc1eef48-b17a-4ccf-ac8b-dfcff7711b14"

Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Change-Id: I5861ac2c1d8f1d8c6704b1abb3a44391d4834568

Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Change-Id: Ie397323ec83babb0d7c5d6db455ea9b855c1fd5d

This contains non backwards compatible changes to the user space API,
therefore the module version major number is increased.

Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Change-Id: Ieb899ed754a8b4ca31720746f1b287bce617418b

Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Change-Id: I7b54b0068f39b181feac7cd58c644493f2e65582

The FF-A driver operations are currently not accessible from user
space. This commit adds a thin layer using a DebugFS interface to
expose them. It is a temporary workaround for the OP-TEE team,
prototyping S-EL0 Secure Partitions and OP-TEE as S-EL1 SPMC.

Change-Id: Ic15a3acf07d74139b37af4aee3a69de634056ba6
Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>

Signed-off-by: Gyorgy Szing <Gyorgy.Szing@arm.com>