1 * QEMU PVPANIC MMIO Configuration bindings 1 * QEMU PVPANIC MMIO Configuration bindings
2 2
3 QEMU's emulation / virtualization targets prov 3 QEMU's emulation / virtualization targets provide the following PVPANIC
4 MMIO Configuration interface on the "virt" mac 4 MMIO Configuration interface on the "virt" machine.
5 type: 5 type:
6 6
7 - a read-write, 16-bit wide data register. 7 - a read-write, 16-bit wide data register.
8 8
9 QEMU exposes the data register to guests as me 9 QEMU exposes the data register to guests as memory mapped registers.
10 10
11 Required properties: 11 Required properties:
12 12
13 - compatible: "qemu,pvpanic-mmio". 13 - compatible: "qemu,pvpanic-mmio".
14 - reg: the MMIO region used by the device. 14 - reg: the MMIO region used by the device.
15 * Bytes 0x0 Write panic event to the reg wh 15 * Bytes 0x0 Write panic event to the reg when guest OS panics.
16 * Bytes 0x1 Reserved. 16 * Bytes 0x1 Reserved.
17 17
18 Example: 18 Example:
19 19
20 / { 20 / {
21 #size-cells = <0x2>; 21 #size-cells = <0x2>;
22 #address-cells = <0x2>; 22 #address-cells = <0x2>;
23 23
24 pvpanic-mmio@9060000 { 24 pvpanic-mmio@9060000 {
25 compatible = "qemu,pvpanic-mmi 25 compatible = "qemu,pvpanic-mmio";
26 reg = <0x0 0x9060000 0x0 0x2>; 26 reg = <0x0 0x9060000 0x0 0x2>;
27 }; 27 };
28 }; 28 };
29 29
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