Zephyr passthrough device tree for first domU

Passthrough for the first domU

/dts-v1/;

/ {
    #address-cells = <0x02>;
    #size-cells = <0x02>;

    gic {
        #interrupt-cells = <0x03>;
        interrupt-controller;
        phandle = <0x01>;
    };

    passthrough {
        compatible = "simple-bus";
        ranges;
        #address-cells = <0x02>;
        #size-cells = <0x02>;

        clk1 {
            u-boot,dm-pre-reloc;
            compatible = "fixed-clock";
            #clock-cells = <0x00>;
            clock-frequency = <0xf4240>;
            phandle = <0x11>;
        };

        timer@f1dc0000 {
            compatible = "cdns,ttc\0xlnx,ttcps";
            interrupt-parent = <0x01>;
            interrupts = <0x00 0x2b 0x04 0x00 0x2c 0x04 0x00 0x2d 0x04>;
            reg = <0x00 0xf1dc0000 0x00 0x1000>;
            clocks = <0x11 0x11>;
            phandle = <0x33>;
            status = "okay";
            xen,reg = <0x00 0xf1dc0000 0x00 0x1000 0x00 0xf1dc0000>;
            xen,force-assign-without-iommu = "/timer@f1dc0000";
            xen,path = "/timer@f1dc0000";
        };
    };
};