From bbd6eb29214e1a278e8575f57d64b88077bebf6d Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Mon, 24 Sep 2012 16:40:52 +0000 Subject: arm: introduce a DTS for Xen unprivileged virtual machines Given that the xenvm machine is based on vexpress but with an extremely limited selection of peripherals (the guest is supposed to use virtual devices instead), add "xen,xenvm" to the list of compatible machines in mach-vexpress. Changes in v3: - add comments to mark fields that are likely to be changed by the hypervisor. Changes in v2: - remove include skeleton; - use #address-cells = <2> and #size-cells = <2>; - remove the debug bootargs; - use memory@80000000 instead of memory; - remove the ranges and interrupt-map from the motherboard node; - set the machine compatible to "xen,xenvm-4.2", "xen,xenvm"; - rename the dts file to xenvm-4.2.dts; - add "xen,xenvm" to the list of compatible DT strings to mach-vexpress. Signed-off-by: Stefano Stabellini Acked-by: Arnd Bergmann Acked-by: Pawel Moll (v2m changes) --- arch/arm/boot/dts/xenvm-4.2.dts | 68 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 arch/arm/boot/dts/xenvm-4.2.dts (limited to 'arch/arm/boot') diff --git a/arch/arm/boot/dts/xenvm-4.2.dts b/arch/arm/boot/dts/xenvm-4.2.dts new file mode 100644 index 000000000000..ec3f9528e180 --- /dev/null +++ b/arch/arm/boot/dts/xenvm-4.2.dts @@ -0,0 +1,68 @@ +/* + * 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>; + }; + }; + + 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"; + }; +}; -- cgit v1.2.3