linux-kernel - [PATCH v2 0/2] OP-TEE FF-A notifications

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Message-Id: <20231107160657.3798803-1-jens.wiklander@linaro.org>
Date:   Tue,  7 Nov 2023 17:06:55 +0100
From:   Jens Wiklander <jens.wiklander@...aro.org>
To:     linux-kernel@...r.kernel.org, op-tee@...ts.trustedfirmware.org
Cc:     Sumit Garg <sumit.garg@...aro.org>,
        Jerome Forissier <jerome.forissier@...aro.org>,
        Sudeep Holla <sudeep.holla@....com>,
        Marc Bonnici <marc.bonnici@....com>,
        Olivier Deprez <Olivier.Deprez@....com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Jens Wiklander <jens.wiklander@...aro.org>
Subject: [PATCH v2 0/2] OP-TEE FF-A notifications

Hi all,

This patchset adds support for using FF-A notifications as a delivery
mechanism of asynchronous notifications from OP-TEE running in the secure
world. Support for asynchronous notifications via the SMC ABI was added in
[1], here we add the counterpart needed when using the the FF-A ABI.

Support for FF-A notifications is added with [2] and this patch set is based
on Sudeeps tree at [3].

[1] https://lore.kernel.org/lkml/20211103090255.998070-1-jens.wiklander@linaro.org/
[2] https://lore.kernel.org/linux-arm-kernel/20231005-ffa_v1-1_notif-v4-0-cddd3237809c@arm.com/
[3] https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git/tag/?h=ffa-updates-6.7
    commit bcefd1bf63b1 ("firmware: arm_ffa: Upgrade the driver version to v1.1")

v1->v2:
* Applied Sumit's Reviewed-by
* Addressed Sumit's comment on "optee: ffa_abi: add asynchronous
  notifications"

Thanks,
Jens

Jens Wiklander (2):
  optee: provide optee_do_bottom_half() as a common function
  optee: ffa_abi: add asynchronous notifications

 drivers/tee/optee/call.c          | 31 ++++++++++-
 drivers/tee/optee/ffa_abi.c       | 93 ++++++++++++++++++++++++++++++-
 drivers/tee/optee/optee_ffa.h     | 28 ++++++++--
 drivers/tee/optee/optee_private.h |  9 ++-
 drivers/tee/optee/smc_abi.c       | 36 ++----------
 5 files changed, 155 insertions(+), 42 deletions(-)


base-commit: bcefd1bf63b1ec9bb08067021cf47f0fad96f395
-- 
2.34.1