[Xen-devel] [PATCH] arm: introduce a DTS for Xen unprivileged virtual machines

David Vrabel david.vrabel at citrix.com
Thu Sep 20 06:45:57 EDT 2012


On 19/09/12 18:44, Stefano Stabellini wrote:
> --- /dev/null
> +++ b/arch/arm/boot/dts/vexpress-xenvm-4.2.dts

Does this make sense?  There is no fixed configuration for VMs.

Is the intention to pass a DTS to the toolstack for it to create the VM
with the appropriate amount of memory and peripheral mapped to the right
place etc?  Or is the toolstack going to create the VM and generate the
DTB from (e.g.,) an xl VM configuration file.

> +
> +	hypervisor {
> +		compatible = "xen,xen-4.2", "xen,xen";
> +		reg = <0xb0000000 0x20000>;
> +		interrupts = <1 15 0xf08>;
> +	};

This node needs to be generated by the toolstack as only it knows what
ABI the hypervisor has.

David



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