Messages in this thread Patch in this message | | | From | Peng Hao <> | Subject | [PATCH V2 4/4] misc/pvpanic : pvpanic: add document for pvpanic-mmio DT | Date | Thu, 25 Oct 2018 01:12:16 +0800 |
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Signed-off-by: Peng Hao <peng.hao2@zte.com.cn> --- .../devicetree/bindings/arm/pvpanic-mmio.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/pvpanic-mmio.txt
diff --git a/Documentation/devicetree/bindings/arm/pvpanic-mmio.txt b/Documentation/devicetree/bindings/arm/pvpanic-mmio.txt new file mode 100644 index 0000000..a6bdacd --- /dev/null +++ b/Documentation/devicetree/bindings/arm/pvpanic-mmio.txt @@ -0,0 +1,29 @@ +* QEMU PVPANIC MMIO Configuration bindings for ARM + +QEMU's emulation / virtualization targets provide the following PVPANIC +MMIO Configuration interface on the "virt" machine. +type: + +- a read-write, 16-bit wide data register. + +QEMU exposes the data register to guests as memory mapped registers. + +Required properties: + +- compatible: "qemu,pvpanic-mmio". +- reg: the MMIO region used by the device. + * Bytes 0x0 Write panic event to the reg when guest OS panics. + * Bytes 0x1 Reserved. + +Example: + +/ { + #size-cells = <0x2>; + #address-cells = <0x2>; + + pvpanic-mmio@9060000 { + compatible = "qemu,pvpanic-mmio"; + reg = <0x0 0x9060000 0x0 0x2>; + }; +}; + -- 1.8.3.1
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