Merge pull request #3 from armijnhemel/dtb

add test files for dtb

system/dtb/README.md

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+<!--
+SPDX-FileCopyrightText: 2021 Armijn Hemel <[email protected]>
+
+SPDX-License-Identifier: CC0-1.0
+-->
+
+## xenvm-4.2.dtb
+
+DTB blob, generated with:
+
+    $ dtc xenvm-4.2.dts -o xenvm-4.2.dtb
+
+Source: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/xenvm-4.2.dts?id=b24413180f56

system/dtb/xenvm-4.2.dtb.license

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+SPDX-FileCopyrightText: 2012 Stefano Stabellini <[email protected]>
+
+SPDX-License-Identifier: GPL-2.0-only

system/dtb/xenvm-4.2.dts

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+// SPDX-FileCopyrightText: 2012 Stefano Stabellini <[email protected]>
+//
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Xen Virtual Machine for unprivileged guests
+ *
+ * Based on ARM Ltd. Versatile Express CoreTile Express (single CPU)
+ * Cortex-A15 MPCore (V2P-CA15)
+ *
+ */
+
+/dts-v1/;
+
+/ {
+	model = "XENVM-4.2";
+	compatible = "xen,xenvm-4.2", "xen,xenvm";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	chosen {
+		/* this field is going to be adjusted by the hypervisor */
+		bootargs = "console=hvc0 root=/dev/xvda";
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <0>;
+		};
+
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <1>;
+		};
+	};
+
+	psci {
+		compatible      = "arm,psci";
+		method          = "hvc";
+		cpu_off         = <1>;
+		cpu_on          = <2>;
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		/* this field is going to be adjusted by the hypervisor */
+		reg = <0 0x80000000 0 0x08000000>;
+	};
+
+	gic: interrupt-controller@2c001000 {
+		compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";
+		#interrupt-cells = <3>;
+		#address-cells = <0>;
+		interrupt-controller;
+		reg = <0 0x2c001000 0 0x1000>,
+		      <0 0x2c002000 0 0x100>;
+	};
+
+	timer {
+		compatible = "arm,armv7-timer";
+		interrupts = <1 13 0xf08>,
+			     <1 14 0xf08>,
+			     <1 11 0xf08>,
+			     <1 10 0xf08>;
+	};
+
+	hypervisor {
+		compatible = "xen,xen-4.2", "xen,xen";
+		/* this field is going to be adjusted by the hypervisor */
+		reg = <0 0xb0000000 0 0x20000>;
+		/* this field is going to be adjusted by the hypervisor */
+		interrupts = <1 15 0xf08>;
+	};
+
+	motherboard {
+		arm,v2m-memory-map = "rs1";
+	};
+};