Resguardo inicial

2026-09-06 12:53:21 -06:00
parent 662efe3c2a
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ptp/amazon,vmclock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Virtual Machine Clock
+
+maintainers:
+  - David Woodhouse <dwmw2@infradead.org>
+
+description:
+  The vmclock device provides a precise clock source and allows for
+  accurate timekeeping across live migration and snapshot/restore
+  operations. The full specification of the shared data structure is
+  available at https://uapi-group.org/specifications/specs/vmclock/
+
+properties:
+  compatible:
+    const: amazon,vmclock
+
+  reg:
+    description:
+      Specifies the shared memory region containing the vmclock_abi structure.
+    maxItems: 1
+
+  interrupts:
+    description:
+      Interrupt used to notify when the contents of the vmclock_abi structure
+      have been updated.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    ptp@80000000 {
+      compatible = "amazon,vmclock";
+      reg = <0x80000000 0x1000>;
+      interrupts = <GIC_SPI 36 IRQ_TYPE_EDGE_RISING>;
+    };