From: Peng Hao <peng.hao2@zte.com.cn>
To: robh+dt@kernel.org, mark.rutland@arm.com, arnd@arndb.de,
gregkh@linuxfoundation.org, andy@infradead.org,
dvhart@infradead.org
Cc: linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org, hutao@cn.fujitsu.com,
linux-doc@vger.kernel.org, Peng Hao <peng.hao2@zte.com.cn>
Subject: [PATCH V4 5/5] dt-bindings/misc/pvpanic :add document for pvpanic-mmio
Date: Wed, 31 Oct 2018 21:37:21 +0800 [thread overview]
Message-ID: <1540993041-25611-5-git-send-email-peng.hao2@zte.com.cn> (raw)
In-Reply-To: <1540993041-25611-1-git-send-email-peng.hao2@zte.com.cn>
Add dt-bindings document for "qemu:pvpanic-mmio".
Signed-off-by: Peng Hao <peng.hao2@zte.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..985e907
--- /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@9060000 {
+ compatible = "qemu,pvpanic-mmio";
+ reg = <0x0 0x9060000 0x0 0x2>;
+ };
+};
+
--
1.8.3.1
prev parent reply other threads:[~2018-10-31 5:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-31 13:37 [PATCH V4 1/5] pvpanic: move pvpanic to misc as common driver Peng Hao
2018-10-31 7:05 ` Mark Rutland
2018-10-31 12:45 ` Andy Shevchenko
2018-10-31 13:37 ` [PATCH V4 2/5] misc/pvpanic : convert to SPDX license tags Peng Hao
2018-10-31 12:46 ` Andy Shevchenko
2018-10-31 13:37 ` [PATCH V4 3/5] misc/pvpanic: add MMIO support Peng Hao
2018-10-31 12:49 ` Andy Shevchenko
2018-10-31 13:37 ` [PATCH V4 4/5] misc/pvpanic: add support to get pvpanic device info by FDT Peng Hao
2018-10-31 12:50 ` Andy Shevchenko
2018-10-31 12:53 ` Andy Shevchenko
2018-10-31 13:37 ` Peng Hao [this message]
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