Re: [Xen-devel] [PATCH v2 00/15] xen/arm: Add GICv3 support

[Vijay Kilari <vijay.kilari@xxxxxxxxx>]

On Fri, Apr 4, 2014 at 6:31 PM, Julien Grall <julien.grall@xxxxxxxxxx> wrote:
> Hi Vijay
>
> On 04/04/2014 12:56 PM, vijay.kilari@xxxxxxxxx wrote:
>> From: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx>
>>
>> Made changes to existing gic and vgic drivers
>> to make it generic and added support for GIC v3
>> hw version
>>
>> Tested with ARM64 simulator with single core
>
> What about multiple core? On V1 you said you were unable to use SMP with
> GICv3, did you find the issue?
>
   There is no issue with hardware now. Xen can boot with multicore (2
cores) but dom0 single core.
limited using bootargs. I started working on Dom0 boot with multicore.

In GICv3, On SGI at EL1 (kernel), it traps to EL2. Xen does not handle
this trap.
So need to implement it. I started working on it and also trying to
understand EL1
 SGI routing in vgic driver. BTW do you know how SGI is handled in
ARMv7 with GICv2?
I think vgic_to_sgi() in vgic driver is managing it.

> BTW, do you have a git tree with these patch series? I'd like to give a
> try on GICv2 platform.
>
No, I don't have any public git tree to share the patches

> Regards,
>
> --
> Julien Grall

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