| Message ID | 20241015-imx-se-if-v8-2-915438e267d3@nxp.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | v8: firmware: imx: driver for NXP secure-enclave | expand |
On Tue, 15 Oct 2024 14:31:00 +0530, Pankaj Gupta wrote: > The NXP security hardware IP(s) like: i.MX EdgeLock Enclave, V2X etc., > creates an embedded secure enclave within the SoC boundary to enable > features like: > - HSM > - SHE > - V2X > > Secure-Enclave(s) communication interface are typically via message > unit, i.e., based on mailbox linux kernel driver. This driver enables > communication ensuring well defined message sequence protocol between > Application Core and enclave's firmware. > > Driver configures multiple misc-device on the MU, for multiple > user-space applications, to be able to communicate over single MU. > > It exists on some i.MX processors. e.g. i.MX8ULP, i.MX93 etc. > > Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com> > --- > .../devicetree/bindings/firmware/fsl,imx-se.yaml | 91 ++++++++++++++++++++++ > 1 file changed, 91 insertions(+) > Please add Acked-by/Reviewed-by tags when posting new versions. However, there's no need to repost patches *only* to add the tags. The upstream maintainer will do that for acks received on the version they apply. If a tag was not added on purpose, please state why and what changed. Missing tags: Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Will add the tag reviewed-by, in v9. Regards Pankaj -----Original Message----- From: Rob Herring (Arm) <robh@kernel.org> Sent: Tuesday, October 15, 2024 7:52 PM To: Pankaj Gupta <pankaj.gupta@nxp.com> Cc: Pengutronix Kernel Team <kernel@pengutronix.de>; Conor Dooley <conor+dt@kernel.org>; Sascha Hauer <s.hauer@pengutronix.de>; Shawn Guo <shawnguo@kernel.org>; Jonathan Corbet <corbet@lwn.net>; Krzysztof Kozlowski <krzk+dt@kernel.org>; Fabio Estevam <festevam@gmail.com>; devicetree@vger.kernel.org; linux-doc@vger.kernel.org; imx@lists.linux.dev; linux-arm-kernel@lists.infradead.org; Rob Herring <robh+dt@kernel.org>; linux-kernel@vger.kernel.org Subject: [EXT] Re: [PATCH v8 2/5] dt-bindings: arm: fsl: add imx-se-fw binding doc Caution: This is an external email. Please take care when clicking links or opening attachments. When in doubt, report the message using the 'Report this email' button On Tue, 15 Oct 2024 14:31:00 +0530, Pankaj Gupta wrote: > The NXP security hardware IP(s) like: i.MX EdgeLock Enclave, V2X etc., > creates an embedded secure enclave within the SoC boundary to enable > features like: > - HSM > - SHE > - V2X > > Secure-Enclave(s) communication interface are typically via message > unit, i.e., based on mailbox linux kernel driver. This driver enables > communication ensuring well defined message sequence protocol between > Application Core and enclave's firmware. > > Driver configures multiple misc-device on the MU, for multiple > user-space applications, to be able to communicate over single MU. > > It exists on some i.MX processors. e.g. i.MX8ULP, i.MX93 etc. > > Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com> > --- > .../devicetree/bindings/firmware/fsl,imx-se.yaml | 91 ++++++++++++++++++++++ > 1 file changed, 91 insertions(+) > Please add Acked-by/Reviewed-by tags when posting new versions. However, there's no need to repost patches *only* to add the tags. The upstream maintainer will do that for acks received on the version they apply. If a tag was not added on purpose, please state why and what changed. Missing tags: Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/firmware/fsl,imx-se.yaml b/Documentation/devicetree/bindings/firmware/fsl,imx-se.yaml new file mode 100644 index 000000000000..0b617f61640f --- /dev/null +++ b/Documentation/devicetree/bindings/firmware/fsl,imx-se.yaml @@ -0,0 +1,91 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/firmware/fsl,imx-se.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP i.MX HW Secure Enclave(s) EdgeLock Enclave + +maintainers: + - Pankaj Gupta <pankaj.gupta@nxp.com> + +description: | + NXP's SoC may contain one or multiple embedded secure-enclave HW + IP(s) like i.MX EdgeLock Enclave, V2X etc. These NXP's HW IP(s) + enables features like + - Hardware Security Module (HSM), + - Security Hardware Extension (SHE), and + - Vehicular to Anything (V2X) + + Communication interface to the secure-enclaves(se) is based on the + messaging unit(s). + +properties: + compatible: + enum: + - fsl,imx8ulp-se + - fsl,imx93-se + - fsl,imx95-se + + mboxes: + items: + - description: mailbox phandle to send message to se firmware + - description: mailbox phandle to receive message from se firmware + + mbox-names: + items: + - const: tx + - const: rx + + memory-region: + maxItems: 1 + + sram: + maxItems: 1 + +required: + - compatible + - mboxes + - mbox-names + +allOf: + # memory-region + - if: + properties: + compatible: + contains: + enum: + - fsl,imx8ulp-se + - fsl,imx93-se + then: + required: + - memory-region + else: + properties: + memory-region: false + + # sram + - if: + properties: + compatible: + contains: + enum: + - fsl,imx8ulp-se + then: + required: + - sram + + else: + properties: + sram: false + +additionalProperties: false + +examples: + - | + secure-enclave { + compatible = "fsl,imx95-se"; + mboxes = <&ele_mu0 0 0>, <&ele_mu0 1 0>; + mbox-names = "tx", "rx"; + }; +...
The NXP security hardware IP(s) like: i.MX EdgeLock Enclave, V2X etc., creates an embedded secure enclave within the SoC boundary to enable features like: - HSM - SHE - V2X Secure-Enclave(s) communication interface are typically via message unit, i.e., based on mailbox linux kernel driver. This driver enables communication ensuring well defined message sequence protocol between Application Core and enclave's firmware. Driver configures multiple misc-device on the MU, for multiple user-space applications, to be able to communicate over single MU. It exists on some i.MX processors. e.g. i.MX8ULP, i.MX93 etc. Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com> --- .../devicetree/bindings/firmware/fsl,imx-se.yaml | 91 ++++++++++++++++++++++ 1 file changed, 91 insertions(+)