Hi Shameer,

On 5/12/26 11:41 AM, Shameer Kolothum Thodi wrote:
>
>> -----Original Message-----
>> From: Eric Auger <[email protected]>
>> Sent: 12 May 2026 07:39
>> To: Shameer Kolothum Thodi <[email protected]>;
>> [email protected]; [email protected]; qemu-
>> [email protected]; [email protected]; [email protected];
>> [email protected]; [email protected]; [email protected];
>> [email protected]
>> Cc: [email protected]; [email protected]; [email protected];
>> [email protected]; [email protected]; [email protected];
>> [email protected]
>> Subject: Re: [PATCH v4 03/17] target/arm/cpu-sysregs.h.inc: Update with
>> automatic generation
>>
> [...]
>
>>>> +DEF(MPIDR_EL1, 3, 0, 0, 0, 5)
>>> Do we need MPIDR_EL1 as well? Is this considered as a feature ID
>>> register and is writable? I don't think so.
>> MPIDR_EL1 is part of the ID regs range defined in the kernel doc
>>
>> op0 = 3, op1 = {0,1,3}, crn = 0, crm within [0, 7], op2 within [0, 7]
>>
>> That's why the python script extracts it. Effectively it is not writable yet.
>>
>> I can exclude it from the automatic generation but do we really need to? Any
>> specific reason?
> No specific reason. The only thing is it's not really a feature ID register 
> but
> a topology register and is not writable now.  I leave that to you.

noted. I leave it as is for now and we will decide upon further reviews.

Thanks

Eric
>
> Thanks,
> Shameer
>


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