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 > >
WARNING: multiple messages have this Message-ID (diff)
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 > > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-06-17 6:10 UTC|newest] Thread overview: 57+ 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 ` 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 ` 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 10:36 ` Jens Wiklander 2021-06-16 16:03 ` Rob Herring 2021-06-16 16:03 ` Rob Herring 2021-06-16 16:05 ` Rob Herring 2021-06-16 16:05 ` Rob Herring 2021-06-22 8:38 ` Jens Wiklander 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 10:36 ` Jens Wiklander 2021-06-16 16:05 ` Rob Herring 2021-06-16 16:05 ` Rob Herring 2021-06-22 8:41 ` Jens Wiklander 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 ` 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 ` Jens Wiklander 2021-06-16 10:36 ` [PATCH v2 6/7] optee: separate notification functions Jens Wiklander 2021-06-16 10:36 ` Jens Wiklander 2021-06-16 10:36 ` [PATCH v2 7/7] optee: add asynchronous notifications Jens Wiklander 2021-06-16 10:36 ` Jens Wiklander 2021-06-16 14:08 ` Ard Biesheuvel 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 4:33 ` Sumit Garg 2021-06-17 6:10 ` Jens Wiklander [this message] 2021-06-17 6:10 ` Jens Wiklander 2021-07-06 7:25 ` Sumit Garg 2021-07-06 7:25 ` Sumit Garg 2021-07-06 10:36 ` Marc Zyngier 2021-07-06 10:36 ` Marc Zyngier 2021-07-06 11:39 ` Sumit Garg 2021-07-06 11:39 ` Sumit Garg 2021-07-06 12:46 ` Marc Zyngier 2021-07-06 12:46 ` Marc Zyngier 2021-07-07 5:52 ` Sumit Garg 2021-07-07 5:52 ` Sumit Garg 2021-07-07 6:54 ` Jens Wiklander 2021-07-07 6:54 ` Jens Wiklander 2021-07-07 17:51 ` Sudeep Holla 2021-07-07 17:51 ` Sudeep Holla 2021-07-08 12:56 ` Sumit Garg 2021-07-08 12:56 ` Sumit Garg 2021-07-09 8:05 Etienne CARRIERE 2021-07-13 11:11 ` Sudeep Holla 2021-07-13 11:11 ` Sudeep Holla 2021-07-20 6:45 ` Jens Wiklander 2021-07-20 6:45 ` Jens Wiklander 2021-07-20 7:50 ` Sudeep Holla 2021-07-20 7:50 ` Sudeep Holla 2021-07-20 9:59 ` Jens Wiklander 2021-07-20 9:59 ` Jens Wiklander
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