From: Jens Wiklander <jens.wiklander@linaro.org>
To: Sumit Garg <sumit.garg@linaro.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
OP-TEE TrustedFirmware <op-tee@lists.trustedfirmware.org>,
Devicetree List <devicetree@vger.kernel.org>,
Linux Doc Mailing List <linux-doc@vger.kernel.org>,
Jerome Forissier <jerome@forissier.org>,
Etienne Carriere <etienne.carriere@linaro.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
Ard Biesheuvel <ardb@kernel.org>, Marc Zyngier <maz@kernel.org>
Subject: Re: [PATCH v2 0/7] Asynchronous notifications from secure world
Date: Thu, 17 Jun 2021 08:10:01 +0200 [thread overview]
Message-ID: <CAHUa44EeAENHv+CxtXeLuqX_NGWW6w-6P8D-BLsb69+XmGaqEQ@mail.gmail.com> (raw)
In-Reply-To: <CAFA6WYMrxNfR09doWQgYKCQSYKyUMVKqSTPuRYn=-nueY9pSvQ@mail.gmail.com>
Hi Sumit,
On Thu, Jun 17, 2021 at 6:33 AM Sumit Garg <sumit.garg@linaro.org> wrote:
>
> Hi Jens,
>
> On Wed, 16 Jun 2021 at 16:07, Jens Wiklander <jens.wiklander@linaro.org> wrote:
> >
> > 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 interrupt is used to notify the driver that there are asynchronous
> > notifications pending.
> >
>
> It looks like a nice feature. I would like to get hands on with this.
> Can I test this feature on Qemu?
Absolutely, you can get this into the normal OP-TEE development repo setup with:
repo init -u https://github.com/OP-TEE/manifest.git -m default.xml
repo sync
Update optee_os with
https://github.com/jenswi-linaro/optee_os/tree/async_notif_v2
Update linux with https://github.com/jenswi-linaro/linux-1/tree/async_notif_v2
cd build
make all -j...
make run-only
If you type anything at the secure console you'll notice how it
changes behaviour once the Linux kernel has booted.
Cheers,
Jens
>
> -Sumit
>
> > v2:
> > * Added documentation
> > * Converted optee bindings to json-schema and added interrupt property
> > * Configure notification interrupt from DT instead of getting it
> > from secure world, suggested by Ard Biesheuvel <ardb@kernel.org>.
> >
> > Thanks,
> > Jens
> >
> > Jens Wiklander (7):
> > docs: staging/tee.rst: add a section on OP-TEE notifications
> > dt-bindings: arm: Convert optee binding to json-schema
> > dt-bindings: arm: optee: add interrupt property
> > tee: fix put order in teedev_close_context()
> > tee: add tee_dev_open_helper() primitive
> > optee: separate notification functions
> > optee: add asynchronous notifications
> >
> > .../bindings/arm/firmware/linaro,optee-tz.txt | 31 ---
> > .../arm/firmware/linaro,optee-tz.yaml | 57 +++++
> > Documentation/staging/tee.rst | 27 +++
> > drivers/tee/optee/Makefile | 1 +
> > drivers/tee/optee/call.c | 27 +++
> > drivers/tee/optee/core.c | 87 +++++--
> > 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 | 75 +++++-
> > drivers/tee/optee/rpc.c | 73 +-----
> > drivers/tee/tee_core.c | 37 ++-
> > include/linux/tee_drv.h | 27 +++
> > 14 files changed, 576 insertions(+), 155 deletions(-)
> > delete mode 100644 Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.txt
> > create mode 100644 Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.yaml
> > create mode 100644 drivers/tee/optee/notif.c
> >
> > --
> > 2.31.1
> >
next prev parent reply other threads:[~2021-06-17 6:10 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-16 10:36 [PATCH v2 0/7] Asynchronous notifications from secure world Jens Wiklander
2021-06-16 10:36 ` [PATCH v2 1/7] docs: staging/tee.rst: add a section on OP-TEE notifications Jens Wiklander
2021-06-16 10:36 ` [PATCH v2 2/7] dt-bindings: arm: Convert optee binding to json-schema Jens Wiklander
2021-06-16 16:03 ` Rob Herring
2021-06-16 16:05 ` Rob Herring
2021-06-22 8:38 ` Jens Wiklander
2021-06-16 10:36 ` [PATCH v2 3/7] dt-bindings: arm: optee: add interrupt property Jens Wiklander
2021-06-16 16:05 ` Rob Herring
2021-06-22 8:41 ` Jens Wiklander
2021-06-16 10:36 ` [PATCH v2 4/7] tee: fix put order in teedev_close_context() Jens Wiklander
2021-06-16 10:36 ` [PATCH v2 5/7] tee: add tee_dev_open_helper() primitive Jens Wiklander
2021-06-16 10:36 ` [PATCH v2 6/7] optee: separate notification functions Jens Wiklander
2021-06-16 10:36 ` [PATCH v2 7/7] optee: add asynchronous notifications Jens Wiklander
2021-06-16 14:08 ` Ard Biesheuvel
2021-06-17 4:33 ` [PATCH v2 0/7] Asynchronous notifications from secure world Sumit Garg
2021-06-17 6:10 ` Jens Wiklander [this message]
2021-07-06 7:25 ` Sumit Garg
2021-07-06 10:36 ` Marc Zyngier
2021-07-06 11:39 ` Sumit Garg
2021-07-06 12:46 ` Marc Zyngier
2021-07-07 5:52 ` Sumit Garg
2021-07-07 6:54 ` Jens Wiklander
2021-07-07 17:51 ` Sudeep Holla
2021-07-08 12:56 ` Sumit Garg
2021-07-09 8:05 Etienne CARRIERE
2021-07-13 11:11 ` Sudeep Holla
2021-07-20 6:45 ` Jens Wiklander
2021-07-20 7:50 ` Sudeep Holla
2021-07-20 9:59 ` Jens Wiklander
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAHUa44EeAENHv+CxtXeLuqX_NGWW6w-6P8D-BLsb69+XmGaqEQ@mail.gmail.com \
--to=jens.wiklander@linaro.org \
--cc=ardb@kernel.org \
--cc=corbet@lwn.net \
--cc=devicetree@vger.kernel.org \
--cc=etienne.carriere@linaro.org \
--cc=jerome@forissier.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maz@kernel.org \
--cc=op-tee@lists.trustedfirmware.org \
--cc=robh+dt@kernel.org \
--cc=sumit.garg@linaro.org \
--cc=vincent.guittot@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).