Re: [Xen-devel] [v3 00/13] xen/arm: Add support for GICv2 on GICv3

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 03/07/15 11:33, Ian Campbell wrote:
> On Thu, 2015-07-02 at 11:37 +0100, Julien Grall wrote:
>> On 01/07/15 12:00, Julien Grall wrote:
>>> Hi all,
>>
>> Hi Ian,
>>
>>> This patch series adds support for GICv2 on GICv3. This feature is available
>>> only when the GICv3 hardware is compatible with GICv2.
>>>
>>> When it's the case, the same interface is provided in order to use a
>>> virtualize GICv2 (i.e GICC and GICV). This will allow us to re-use the
>>> same vGIC driver.
>>>
>>> Currently GIC and vGIC drivers are tight because of the domain 
>>> initialization
>>> splitted between GIC and vGIC. This patch series intends to remove this
>>> dependency in order to make the vGIC driver agnostic of the GIC driver.
>>>
>>> It has been tested on the ARMv8 Foundation Model with GICv2 and GICv3 as
>>> well as changing the vGIC version emulated for the guest (only on GICv3 
>>> host).
>>>
>>> A branch with all the patches can be found here:
>>>     git://xenbits.xen.org/people/julieng/xen-unstable.git branch 
>>> gicv2-on-gicv3-v3
>>>
>>> All the patches as been acked except #11 and #12.
>>
>> I was wondering if you can apply patch #1-#10 as they are already acked.
>> It would avoid me to resend the whole series.
> 
> Done.
> 
> There was one wrinkle, which is that the message-id's skipped #2, for
> some reason. So I have applied
> <1435748473-28812-NN-git-send-email-julien.grall@xxxxxxxxxx>
> for NN==2 (patch 1, due to 00 being NN=1, which is normal)  and
> NN=4..13 inclusive, being patches 2..11, acking patch 11.
> 
> I don't know how you convinced git send-email to do this, but I only
> mention it in such detail so you can check I've applied the right
> things...

I usually use git-sent-email *.patch and let him doing the job. Somehow
I got a spurious patch in the directory.

The patches are correctly applied thanks!

> 
>> If you ack #11, you could even apply #11 and #13 (#12 is independent).
> 
> I did not apply #13 since it seemed to depend on #12:
> gic-v3.c: In function 'gicv3_restore_state':
> gic-v3.c:385:30: error: 'struct <anonymous>' has no member named 'version'
>      if ( v->domain->arch.vgic.version == GIC_V2 )
>                               ^
> gic-v3.c: In function 'gicv3_update_lr':
> gic-v3.c:893:36: error: 'struct <anonymous>' has no member named 'version'
>      if ( current->domain->arch.vgic.version == GIC_V3 )
>                                     ^
> make[4]: *** [gic-v3.o] Error 1

Hmmm I forgot that I was using GIC_V* in this patch. I will address the
comment on #12 and resent the 2 patches.

Regards,

-- 
Julien Grall

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