From: Sudeep Holla <sudeep.holla@arm.com> To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Cc: Sudeep Holla <sudeep.holla@arm.com>, Trilok Soni <tsoni@codeaurora.org>, arve@android.com, Andrew Walbran <qwandor@google.com>, David Hartley <dhh@qti.qualcomm.com>, Achin Gupta <Achin.Gupta@arm.com>, Jens Wiklander <jens.wiklander@linaro.org>, Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>, Marc Bonnici <marc.bonnici@arm.com> Subject: [PATCH v4 0/7] firmware: Add initial support for Arm FF-A Date: Fri, 12 Feb 2021 15:46:07 +0000 [thread overview] Message-ID: <20210212154614.38604-1-sudeep.holla@arm.com> (raw) Hi all, This is very basic implementation for in-kernel support for Arm FF-A specification. iArm Firmware Framework for Armv8-A specification[1] describes a software architecture that provides mechanism to utilise the virtualization extension to isolate software images and describes interfaces that standardize communication between the various software images. This includes communication between images in the Secure and Normal world. The main idea here is to create FFA device to establish any communication with a secure partition. This is currently tested with OPTEE(with changes to OPTEE driver adding FFA as transport) The series can be fetched from [2] -- Regards, Sudeep [1] https://developer.arm.com/documentation/den0077/latest [2] git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git v5.11/ffa v3->v4: - Added support to allow partitions to set 32bit only mode - Addressed all the comments from Jens Wiklander v2->v3: - Dropped hypervisor partitions and userspace support as it is no longer in the list of requirements - Moved away from ioctl style interface for in-kernel users as there is no need to keep in sync with userspace anymore - Some kerneldoc fixes as pointed out in earlier reviews v1->v2: - Moved userspace code to a separate unit, will move to separate module. Still working on minimizing initcall dependencies and exported functions to reuse some of the code. - Fixed couple of minor issues pointed out - Dropped ASYNC send message as I haven't been able to test Sudeep Holla (7): dt-bindings: Arm: Add Firmware Framework for Armv8-A (FF-A) binding arm64: smccc: Add support for SMCCCv1.2 input/output registers firmware: arm_ffa: Add initial FFA bus support for device enumeration firmware: arm_ffa: Add initial Arm FFA driver support firmware: arm_ffa: Add support for SMCCC as transport to FFA driver firmware: arm_ffa: Setup in-kernel users of FFA partitions firmware: arm_ffa: Add support for MEM_* interfaces .../devicetree/bindings/arm/arm,ffa.yaml | 58 ++ arch/arm64/kernel/asm-offsets.c | 4 + arch/arm64/kernel/smccc-call.S | 22 + drivers/firmware/Kconfig | 1 + drivers/firmware/Makefile | 1 + drivers/firmware/arm_ffa/Kconfig | 21 + drivers/firmware/arm_ffa/Makefile | 6 + drivers/firmware/arm_ffa/bus.c | 181 +++++ drivers/firmware/arm_ffa/common.h | 32 + drivers/firmware/arm_ffa/driver.c | 669 ++++++++++++++++++ drivers/firmware/arm_ffa/smccc.c | 54 ++ include/linux/arm-smccc.h | 50 ++ include/linux/arm_ffa.h | 277 ++++++++ 13 files changed, 1376 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/arm,ffa.yaml create mode 100644 drivers/firmware/arm_ffa/Kconfig create mode 100644 drivers/firmware/arm_ffa/Makefile create mode 100644 drivers/firmware/arm_ffa/bus.c create mode 100644 drivers/firmware/arm_ffa/common.h create mode 100644 drivers/firmware/arm_ffa/driver.c create mode 100644 drivers/firmware/arm_ffa/smccc.c create mode 100644 include/linux/arm_ffa.h -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Sudeep Holla <sudeep.holla@arm.com> To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Cc: Trilok Soni <tsoni@codeaurora.org>, David Hartley <dhh@qti.qualcomm.com>, Marc Bonnici <marc.bonnici@arm.com>, Andrew Walbran <qwandor@google.com>, Achin Gupta <Achin.Gupta@arm.com>, arve@android.com, Sudeep Holla <sudeep.holla@arm.com>, Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>, Jens Wiklander <jens.wiklander@linaro.org> Subject: [PATCH v4 0/7] firmware: Add initial support for Arm FF-A Date: Fri, 12 Feb 2021 15:46:07 +0000 [thread overview] Message-ID: <20210212154614.38604-1-sudeep.holla@arm.com> (raw) Hi all, This is very basic implementation for in-kernel support for Arm FF-A specification. iArm Firmware Framework for Armv8-A specification[1] describes a software architecture that provides mechanism to utilise the virtualization extension to isolate software images and describes interfaces that standardize communication between the various software images. This includes communication between images in the Secure and Normal world. The main idea here is to create FFA device to establish any communication with a secure partition. This is currently tested with OPTEE(with changes to OPTEE driver adding FFA as transport) The series can be fetched from [2] -- Regards, Sudeep [1] https://developer.arm.com/documentation/den0077/latest [2] git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git v5.11/ffa v3->v4: - Added support to allow partitions to set 32bit only mode - Addressed all the comments from Jens Wiklander v2->v3: - Dropped hypervisor partitions and userspace support as it is no longer in the list of requirements - Moved away from ioctl style interface for in-kernel users as there is no need to keep in sync with userspace anymore - Some kerneldoc fixes as pointed out in earlier reviews v1->v2: - Moved userspace code to a separate unit, will move to separate module. Still working on minimizing initcall dependencies and exported functions to reuse some of the code. - Fixed couple of minor issues pointed out - Dropped ASYNC send message as I haven't been able to test Sudeep Holla (7): dt-bindings: Arm: Add Firmware Framework for Armv8-A (FF-A) binding arm64: smccc: Add support for SMCCCv1.2 input/output registers firmware: arm_ffa: Add initial FFA bus support for device enumeration firmware: arm_ffa: Add initial Arm FFA driver support firmware: arm_ffa: Add support for SMCCC as transport to FFA driver firmware: arm_ffa: Setup in-kernel users of FFA partitions firmware: arm_ffa: Add support for MEM_* interfaces .../devicetree/bindings/arm/arm,ffa.yaml | 58 ++ arch/arm64/kernel/asm-offsets.c | 4 + arch/arm64/kernel/smccc-call.S | 22 + drivers/firmware/Kconfig | 1 + drivers/firmware/Makefile | 1 + drivers/firmware/arm_ffa/Kconfig | 21 + drivers/firmware/arm_ffa/Makefile | 6 + drivers/firmware/arm_ffa/bus.c | 181 +++++ drivers/firmware/arm_ffa/common.h | 32 + drivers/firmware/arm_ffa/driver.c | 669 ++++++++++++++++++ drivers/firmware/arm_ffa/smccc.c | 54 ++ include/linux/arm-smccc.h | 50 ++ include/linux/arm_ffa.h | 277 ++++++++ 13 files changed, 1376 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/arm,ffa.yaml create mode 100644 drivers/firmware/arm_ffa/Kconfig create mode 100644 drivers/firmware/arm_ffa/Makefile create mode 100644 drivers/firmware/arm_ffa/bus.c create mode 100644 drivers/firmware/arm_ffa/common.h create mode 100644 drivers/firmware/arm_ffa/driver.c create mode 100644 drivers/firmware/arm_ffa/smccc.c create mode 100644 include/linux/arm_ffa.h -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-02-12 15:47 UTC|newest] Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-12 15:46 Sudeep Holla [this message] 2021-02-12 15:46 ` [PATCH v4 0/7] firmware: Add initial support for Arm FF-A Sudeep Holla 2021-02-12 15:46 ` [PATCH v4 1/7] dt-bindings: Arm: Add Firmware Framework for Armv8-A (FF-A) binding Sudeep Holla 2021-02-12 15:46 ` Sudeep Holla 2021-03-05 20:38 ` Rob Herring 2021-03-05 20:38 ` Rob Herring 2021-02-12 15:46 ` [PATCH v4 2/7] arm64: smccc: Add support for SMCCCv1.2 input/output registers Sudeep Holla 2021-02-12 15:46 ` Sudeep Holla 2021-03-17 7:17 ` Jens Wiklander 2021-03-17 7:17 ` Jens Wiklander 2021-03-23 9:56 ` Sudeep Holla 2021-03-23 9:56 ` Sudeep Holla 2021-02-12 15:46 ` [PATCH v4 3/7] firmware: arm_ffa: Add initial FFA bus support for device enumeration Sudeep Holla 2021-02-12 15:46 ` Sudeep Holla 2021-02-12 15:46 ` [PATCH v4 4/7] firmware: arm_ffa: Add initial Arm FFA driver support Sudeep Holla 2021-02-12 15:46 ` Sudeep Holla 2021-03-19 7:25 ` Jens Wiklander 2021-03-19 7:25 ` Jens Wiklander 2021-03-23 9:53 ` Sudeep Holla 2021-03-23 9:53 ` Sudeep Holla 2021-02-12 15:46 ` [PATCH v4 5/7] firmware: arm_ffa: Add support for SMCCC as transport to FFA driver Sudeep Holla 2021-02-12 15:46 ` Sudeep Holla 2021-03-19 7:02 ` Jens Wiklander 2021-03-19 7:02 ` Jens Wiklander 2021-02-12 15:46 ` [PATCH v4 6/7] firmware: arm_ffa: Setup in-kernel users of FFA partitions Sudeep Holla 2021-02-12 15:46 ` Sudeep Holla 2021-03-18 13:08 ` Jens Wiklander 2021-03-18 13:08 ` Jens Wiklander 2021-02-12 15:46 ` [PATCH v4 7/7] firmware: arm_ffa: Add support for MEM_* interfaces Sudeep Holla 2021-02-12 15:46 ` Sudeep Holla 2021-03-18 14:02 ` Jens Wiklander 2021-03-18 14:02 ` Jens Wiklander 2021-03-16 14:34 ` [PATCH v4 0/7] firmware: Add initial support for Arm FF-A Sudeep Holla 2021-03-16 14:34 ` Sudeep Holla 2021-03-18 14:09 ` Jens Wiklander 2021-03-18 14:09 ` Jens Wiklander 2021-03-19 7:56 ` Jens Wiklander 2021-03-19 7:56 ` Jens Wiklander 2021-03-23 9:50 ` Sudeep Holla 2021-03-23 9:50 ` Sudeep Holla 2021-03-23 9:49 ` Sudeep Holla 2021-03-23 9:49 ` Sudeep Holla
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