Re: [PATCH v12 00/11] Trusted Execution Environment (TEE) driver for Qualcomm TEE (QTEE)

On Fri, Sep 12, 2025 at 10:21:55AM +0200, Jens Wiklander wrote:

Hi,

On Fri, Sep 12, 2025 at 6:07 AM Amirreza Zarrabi
[off-list ref] wrote:

quoted

This patch series introduces a Trusted Execution Environment (TEE)
driver for Qualcomm TEE (QTEE). QTEE enables Trusted Applications (TAs)
and services to run securely. It uses an object-based interface, where
each service is an object with sets of operations. Clients can invoke
these operations on objects, which can generate results, including other
objects. For example, an object can load a TA and return another object
that represents the loaded TA, allowing access to its services.

[snip]

I'm OK with the TEE patches, Sumit and I have reviewed them.

There were some minor conflicts with other patches I have in the pipe
for this merge window, so this patchset is on top of what I have to
avoid merge conflicts.

However, the firmware patches are for code maintained by Björn.
Björn, how would you like to do this? Can I take them via my tree, or
what do you suggest?

I had an offline chat with Amir about this and there is a build
dependency of QTEE driver on firmware patches in case the patches gets
applied in reverse order (first QTEE patches and then firmware ones).
So I would suggest the complete patch-set goes through Jens tree given
the very limited time we have.

Bjorn,

Would it be fine for you to provide your ack for the firmware patches?

-Sumit

It's urgent to get this patchset into linux-next if it's to make it
for the coming merge window. Ideally, I'd like to send my pull request
to arm-soc during this week.

Cheers,
Jens

quoted

---
Amirreza Zarrabi (11):
      firmware: qcom: tzmem: export shm_bridge create/delete
      firmware: qcom: scm: add support for object invocation
      tee: allow a driver to allocate a tee_device without a pool
      tee: add close_context to TEE driver operation
      tee: add TEE_IOCTL_PARAM_ATTR_TYPE_UBUF
      tee: add TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF
      tee: increase TEE_MAX_ARG_SIZE to 4096
      tee: add Qualcomm TEE driver
      tee: qcom: add primordial object
      tee: qcom: enable TEE_IOC_SHM_ALLOC ioctl
      Documentation: tee: Add Qualcomm TEE driver

 Documentation/tee/index.rst              |   1 +
 Documentation/tee/qtee.rst               |  96 ++++
 MAINTAINERS                              |   7 +
 drivers/firmware/qcom/qcom_scm.c         | 119 ++++
 drivers/firmware/qcom/qcom_scm.h         |   7 +
 drivers/firmware/qcom/qcom_tzmem.c       |  63 ++-
 drivers/tee/Kconfig                      |   1 +
 drivers/tee/Makefile                     |   1 +
 drivers/tee/qcomtee/Kconfig              |  12 +
 drivers/tee/qcomtee/Makefile             |   9 +
 drivers/tee/qcomtee/async.c              | 182 ++++++
 drivers/tee/qcomtee/call.c               | 820 +++++++++++++++++++++++++++
 drivers/tee/qcomtee/core.c               | 915 +++++++++++++++++++++++++++++++
 drivers/tee/qcomtee/mem_obj.c            | 169 ++++++
 drivers/tee/qcomtee/primordial_obj.c     | 113 ++++
 drivers/tee/qcomtee/qcomtee.h            | 185 +++++++
 drivers/tee/qcomtee/qcomtee_msg.h        | 304 ++++++++++
 drivers/tee/qcomtee/qcomtee_object.h     | 316 +++++++++++
 drivers/tee/qcomtee/shm.c                | 150 +++++
 drivers/tee/qcomtee/user_obj.c           | 692 +++++++++++++++++++++++
 drivers/tee/tee_core.c                   | 127 ++++-
 drivers/tee/tee_private.h                |   6 -
 include/linux/firmware/qcom/qcom_scm.h   |   6 +
 include/linux/firmware/qcom/qcom_tzmem.h |  15 +
 include/linux/tee_core.h                 |  54 +-
 include/linux/tee_drv.h                  |  12 +
 include/uapi/linux/tee.h                 |  56 +-
 27 files changed, 4410 insertions(+), 28 deletions(-)
---
base-commit: 8b8aefa5a5c7d4a65883e5653cf12f94c0b68dbf
change-id: 20241202-qcom-tee-using-tee-ss-without-mem-obj-362c66340527

Best regards,
--
Amirreza Zarrabi [off-list ref]