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Re: [Xen-devel] [RFC PATCH] xen/arm: GICv3 support for domU

Hi Julien,

On Mon, Sep 15, 2014 at 8:43 PM, Vijay Kilari <vijay.kilari@xxxxxxxxx> wrote:
> Hi Julien,
> On Sat, Sep 13, 2014 at 3:39 AM, Julien Grall <julien.grall@xxxxxxxxxx> wrote:
>> Hi Vijay,
>> On 20/08/14 03:09, vijay.kilari@xxxxxxxxx wrote:
>>> From: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx>
>>> Update libxl tool for arm64 to generate GICv3 device
>>> tree node for domU.
>>> This patch is only for verifying DomU boot on hardware
>>> with GICv3 support and hardcodes GICv3 node information
>>> for DomU. Clean implementation is required using
>>> domctl
>> Thank you for this patch. Do you plan to send a clean implementation soon?
> I plan to implemented generic gicv2/gicv3 dt node
> based on your patch "xen/dts: Add hypercalls to retrieve device node
> information"
> to read gic device compatibility.

Your patch "xen/dts: Add hypercalls to retrieve device node information"
always relies on full node patch to read device node information.

But in some cases, like GIC we don't have full patch. Here we need
to fetch node information like compatibility and other properties like number of
re-distributor regions, re-distributor offset etc., from node name.

So new set of hypercalls which take node name instead of path is required.


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