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[PATCH v4 1/2] dt-bindings: firmware: Add binding for SMBIOS /chosen properties

adriana posted 2 patches 3 months, 1 week ago
There is a newer version of this series
[PATCH v4 1/2] dt-bindings: firmware: Add binding for SMBIOS /chosen properties
Posted by adriana 3 months, 1 week ago 
Signed-off-by: adriana <adriana@arista.com>
---
 .../firmware/linux,smbios3-entrypoint.yaml    | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml

diff --git a/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
new file mode 100644
index 000000000000..4d1521c685ff
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2025 Arista Networks
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/firmware/linux,smbios3-entrypoint.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Memory location for SMBIOS entry point 
+
+description: |
+  This property is used in the /chosen node to pass the physical address
+  of SMBIOS (System Management BIOS) or DMI (Desktop Management Interface)
+  tables from firmware to the kernel. This is typically used on non-EFI.
+  
+maintainers:
+  - Adriana Nicolae <adriana@arista.com>
+  - Rob Herring <robh+dt@kernel.org>
+
+properties:
+  linux,smbios3-entrypoint:
+    $ref: /schemas/types.yaml#/definitions/uint64
+    description:
+      The 64-bit physical address of the SMBIOSv3 entry point structure.
+
+additionalProperties: true
-- 
2.51.0
Re: [PATCH v4 1/2] dt-bindings: firmware: Add binding for SMBIOS /chosen properties
Posted by Rob Herring 3 months, 1 week ago 
On Fri, Oct 31, 2025 at 5:10 AM adriana <adriana@arista.com> wrote:
>
> Signed-off-by: adriana <adriana@arista.com>
> ---
>  .../firmware/linux,smbios3-entrypoint.yaml    | 25 +++++++++++++++++++
>  1 file changed, 25 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
>
> diff --git a/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
> new file mode 100644
> index 000000000000..4d1521c685ff
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
> @@ -0,0 +1,25 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright 2025 Arista Networks
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/firmware/linux,smbios3-entrypoint.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Memory location for SMBIOS entry point
> +
> +description: |
> +  This property is used in the /chosen node to pass the physical address
> +  of SMBIOS (System Management BIOS) or DMI (Desktop Management Interface)
> +  tables from firmware to the kernel. This is typically used on non-EFI.
> +
> +maintainers:
> +  - Adriana Nicolae <adriana@arista.com>
> +  - Rob Herring <robh+dt@kernel.org>
> +
> +properties:
> +  linux,smbios3-entrypoint:
> +    $ref: /schemas/types.yaml#/definitions/uint64
> +    description:
> +      The 64-bit physical address of the SMBIOSv3 entry point structure.

This needs to go in the chosen binding instead:

https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/chosen.yaml
Re: [PATCH v4 1/2] dt-bindings: firmware: Add binding for SMBIOS /chosen properties
Posted by Rob Herring 3 months, 1 week ago 
On Fri, Oct 31, 2025 at 6:15 AM Rob Herring <robh@kernel.org> wrote:
>
> On Fri, Oct 31, 2025 at 5:10 AM adriana <adriana@arista.com> wrote:
> >
> > Signed-off-by: adriana <adriana@arista.com>
> > ---
> >  .../firmware/linux,smbios3-entrypoint.yaml    | 25 +++++++++++++++++++
> >  1 file changed, 25 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
> > new file mode 100644
> > index 000000000000..4d1521c685ff
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
> > @@ -0,0 +1,25 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +# Copyright 2025 Arista Networks
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/firmware/linux,smbios3-entrypoint.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Memory location for SMBIOS entry point
> > +
> > +description: |
> > +  This property is used in the /chosen node to pass the physical address
> > +  of SMBIOS (System Management BIOS) or DMI (Desktop Management Interface)
> > +  tables from firmware to the kernel. This is typically used on non-EFI.
> > +
> > +maintainers:
> > +  - Adriana Nicolae <adriana@arista.com>
> > +  - Rob Herring <robh+dt@kernel.org>
> > +
> > +properties:
> > +  linux,smbios3-entrypoint:
> > +    $ref: /schemas/types.yaml#/definitions/uint64
> > +    description:
> > +      The 64-bit physical address of the SMBIOSv3 entry point structure.
>
> This needs to go in the chosen binding instead:
>
> https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/chosen.yaml

Also, drop the 'linux,' prefix as SMBIOS is not a linux invention.

Rob
Re: [PATCH v4 1/2] dt-bindings: firmware: Add binding for SMBIOS /chosen properties
Posted by Adriana Nicolae 3 months, 1 week ago 
On Fri, Oct 31, 2025 at 1:43 PM Rob Herring <robh@kernel.org> wrote:
>
> On Fri, Oct 31, 2025 at 6:15 AM Rob Herring <robh@kernel.org> wrote:
> >
> > On Fri, Oct 31, 2025 at 5:10 AM adriana <adriana@arista.com> wrote:
> > >
> > > Signed-off-by: adriana <adriana@arista.com>
> > > ---
> > >  .../firmware/linux,smbios3-entrypoint.yaml    | 25 +++++++++++++++++++
> > >  1 file changed, 25 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
> > >
> > > diff --git a/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
> > > new file mode 100644
> > > index 000000000000..4d1521c685ff
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
> > > @@ -0,0 +1,25 @@
> > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > +# Copyright 2025 Arista Networks
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/firmware/linux,smbios3-entrypoint.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Memory location for SMBIOS entry point
> > > +
> > > +description: |
> > > +  This property is used in the /chosen node to pass the physical address
> > > +  of SMBIOS (System Management BIOS) or DMI (Desktop Management Interface)
> > > +  tables from firmware to the kernel. This is typically used on non-EFI.
> > > +
> > > +maintainers:
> > > +  - Adriana Nicolae <adriana@arista.com>
> > > +  - Rob Herring <robh+dt@kernel.org>
> > > +
> > > +properties:
> > > +  linux,smbios3-entrypoint:
> > > +    $ref: /schemas/types.yaml#/definitions/uint64
> > > +    description:
> > > +      The 64-bit physical address of the SMBIOSv3 entry point structure.
> >
> > This needs to go in the chosen binding instead:
> >
> > https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/chosen.yaml
>
> Also, drop the 'linux,' prefix as SMBIOS is not a linux invention.
Thanks! I've renamed it to "smbios3-entrypoint" and opened a separate
PR for the binding:
https://github.com/devicetree-org/dt-schema/pull/177
>
> Rob

Patchew 2.1-devel-b67e4c2

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