From 173c044752b79949335298a3c2566b19831750c1 Mon Sep 17 00:00:00 2001
From: Sebastian Ene <sebastianene@google.com>
Date: Wed, 3 Jul 2024 15:37:31 +0000
Subject: [PATCH] dt-bindings: vcpu_stall_detector: Add a PPI interrupt to the
virtual device
The vcpu stall detector allows the host to monitor the availability of a
guest VM. Introduce a PPI interrupt which can be injected from the host
into the virtual gic to let the guest reboot itself.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Sebastian Ene <sebastianene@google.com>
Link: https://lore.kernel.org/r/20240703153732.3214238-2-sebastianene@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
.../devicetree/bindings/misc/qemu,vcpu-stall-detector.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/misc/qemu,vcpu-stall-detector.yaml b/Documentation/devicetree/bindings/misc/qemu,vcpu-stall-detector.yaml
index 1aebeb696ee0..e12d80be00cd 100644
--- a/Documentation/devicetree/bindings/misc/qemu,vcpu-stall-detector.yaml
+++ b/Documentation/devicetree/bindings/misc/qemu,vcpu-stall-detector.yaml
@@ -29,6 +29,9 @@ properties:
Defaults to 10 if unset.
default: 10
+ interrupts:
+ maxItems: 1
+
timeout-sec:
description: |
The stall detector expiration timeout measured in seconds.
@@ -43,9 +46,12 @@ additionalProperties: false
examples:
- |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
vmwdt@9030000 {
compatible = "qemu,vcpu-stall-detector";
reg = <0x9030000 0x10000>;
clock-frequency = <10>;
timeout-sec = <8>;
+ interrupts = <GIC_PPI 15 IRQ_TYPE_EDGE_RISING>;
};
--
2.30.9