Thread (7 messages) 7 messages, 2 authors, 2021-06-09

[PATCH 0/4] Asynchronous notifications from secure world

STALE1944d

From: Jens Wiklander <hidden>
Date: 2021-06-09 06:09:28
Also in: lkml, op-tee

Revision v1 of 8 in this series.

Revisions (8)
  1. v1 current
  2. v2 [diff vs current]
  3. v3 [diff vs current]
  4. v4 [diff vs current]
  5. v5 [diff vs current]
  6. v6 [diff vs current]
  7. v7 [diff vs current]
  8. v8 [diff vs current]
Hi all,

This adds support for asynchronous notifications from OP-TEE in secure
world to the OP-TEE driver. This allows a design with a top half and bottom
half type of driver where the top half runs in secure interrupt context and
a notifications tells normal world to schedule a yielding call to do the
bottom half processing.

An SPI interrupt is used to notify the driver that there are asynchronous
notifications pending.

Thanks,
Jens

Jens Wiklander (4):
  tee: fix put order in teedev_close_context()
  tee: add tee_dev_open_helper() primitive
  optee: separate notification functions
  optee: add asynchronous notifications

 drivers/tee/optee/Makefile        |   1 +
 drivers/tee/optee/call.c          |  27 ++++
 drivers/tee/optee/core.c          | 104 ++++++++++----
 drivers/tee/optee/notif.c         | 226 ++++++++++++++++++++++++++++++
 drivers/tee/optee/optee_msg.h     |   9 ++
 drivers/tee/optee/optee_private.h |  23 +--
 drivers/tee/optee/optee_rpc_cmd.h |  31 ++--
 drivers/tee/optee/optee_smc.h     |  79 ++++++++++-
 drivers/tee/optee/rpc.c           |  73 ++--------
 drivers/tee/tee_core.c            |  37 +++--
 include/linux/tee_drv.h           |  27 ++++
 11 files changed, 512 insertions(+), 125 deletions(-)
 create mode 100644 drivers/tee/optee/notif.c

-- 
2.31.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help