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Date: Mon, 29 Oct 2018 19:32:23 +0800 From: Peng Hao <peng.hao2@....com.cn> To: robh+dt@...nel.org, mark.rutland@....com, arnd@...db.de, gregkh@...uxfoundation.org, andy@...radead.org, dvhart@...radead.org Cc: linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org, hutao@...fujitsu.com, linux-doc@...r.kernel.org, Peng Hao <peng.hao2@....com.cn> Subject: [PATCH 5/5] dt-bindings/misc/pvpanic :add document for pvpanic-mmio Add dt-bindings document for "qemu:pvpanic-mmio". Signed-off-by: Peng Hao <peng.hao2@....com.cn> --- .../devicetree/bindings/misc/pvpanic-mmio.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/pvpanic-mmio.txt diff --git a/Documentation/devicetree/bindings/misc/pvpanic-mmio.txt b/Documentation/devicetree/bindings/misc/pvpanic-mmio.txt new file mode 100644 index 0000000..3db6d19 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/pvpanic-mmio.txt @@ -0,0 +1,29 @@ +* QEMU PVPANIC MMIO Configuration bindings + +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@...0000 { + compatible = "qemu,pvpanic-mmio"; + reg = <0x0 0x9060000 0x0 0x2>; + }; +}; + -- 1.8.3.1
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