On Tue, Dec 21, 2021 at 05:45:01PM +0000, David Brazdil wrote: > Add DeviceTree bindings for Open Profile for DICE, an open protocol for > measured boot. Firmware uses DICE to measure the hardware/software > combination and generates Compound Device Identifier (CDI) certificates. > These are stored in memory and the buffer is described in the DT as > a reserved memory region compatible with 'google,open-dice'. > > Signed-off-by: David Brazdil <dbrazdil@xxxxxxxxxx> > --- > .../reserved-memory/google,open-dice.yaml | 45 +++++++++++++++++++ > 1 file changed, 45 insertions(+) > create mode 100644 Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml > > diff --git a/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml b/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml > new file mode 100644 > index 000000000000..7bc714e9715f > --- /dev/null > +++ b/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml > @@ -0,0 +1,45 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/reserved-memory/google,open-dice.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Open Profile for DICE Device Tree Bindings > + > +description: | > + This binding represents a reserved memory region containing data > + generated by the Open Profile for DICE protocol. > + > + See https://pigweed.googlesource.com/open-dice/ > + > +maintainers: > + - David Brazdil <dbrazdil@xxxxxxxxxx> > + > +allOf: > + - $ref: "reserved-memory.yaml" > + > +properties: > + compatible: > + const: google,open-dice > + > + reg: > + description: page-aligned region of memory containing DICE data > + > +required: > + - compatible > + - reg > + > +additionalProperties: true unevaluatedProperties: false Additional properties are only allowed for common schema included by other schemas. > + > +examples: > + - | > + reserved-memory { > + #address-cells = <2>; > + #size-cells = <1>; > + > + dice: dice@12340000 { > + compatible = "google,open-dice"; > + reg = <0x00 0x12340000 0x2000>; > + no-map; > + }; > + }; > -- > 2.34.1.307.g9b7440fafd-goog > >
