Re: [Xen-devel] [PATCH v4 14/16] xen/arm: Add virtual GICv3 support

[Vijay Kilari <vijay.kilari@xxxxxxxxx>]

Hi Stefano,

On Mon, Jun 2, 2014 at 9:20 PM, Stefano Stabellini
<stefano.stabellini@xxxxxxxxxxxxx> wrote:
> On Mon, 26 May 2014, vijay.kilari@xxxxxxxxx wrote:
>> +    case GICD_IROUTER ... GICD_IROUTER31:
>> +        /* SGI/PPI is RES0 */
>> +        goto write_ignore_64;
>> +    case GICD_IROUTER32 ... GICD_IROUTERN:
>> +        if ( dabt.size != DABT_DOUBLE_WORD ) goto bad_width;
>> +        rank = vgic_irq_rank(v, 64, gicd_reg - GICD_IROUTER, 
>> DABT_DOUBLE_WORD);
>> +        if ( rank == NULL) goto write_ignore;
>> +        vgic_lock_rank(v, rank);
>> +        rank->v3.irouter[REG_RANK_INDEX(64,
>> +                      (gicd_reg - GICD_IROUTER), DABT_DOUBLE_WORD)] = *r;
>> +        vgic_unlock_rank(v, rank);
>> +        return 1;
>
> Similarly to
>
> http://marc.info/?l=xen-devel&m=140104126710713

Shall we handle this patch separately on top of this series instead of
including this changes in the first version of vgic-v3.c?

>
> We should ignore any writes to GICD_IROUTER*.

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