Re: [Xen-devel] [PATCH v7 17/28] xen/arm: ITS: Add GITS registers emulation

[Vijay Kilari <vijay.kilari@xxxxxxxxx>]

On Tue, Sep 22, 2015 at 8:00 PM, Julien Grall <julien.grall@xxxxxxxxxx> wrote:
> Hi Vijay,
>
> On 18/09/15 14:09, vijay.kilari@xxxxxxxxx wrote:
[...]
>> +    case 0x0010 ... 0x007c:
>> +    case 0xc000 ... 0xffcc:
>> +        /* Implementation defined -- write ignored */
>> +        goto write_ignore;
>> +    case GITS_CBASER:
>> +        /* XXX: support 32-bit access */
>
> You haven't asked my question on v6... What is missing to support 32-bt
> support? AFAICT the register helpers should the job for you. Correct?

   GITS_CBASER.Physical Address holds bits[47:12], Being at
physical address at bits [47:12]  cannot be updated with single 32-bit access.

I remember we discussed this on chat.

Regards
Vijay

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