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Re: [PATCH v2] xen/arm: Use register_t type of cpuinfo entries
- To: Julien Grall <julien@xxxxxxx>
- From: Bertrand Marquis <Bertrand.Marquis@xxxxxxx>
- Date: Tue, 16 Mar 2021 14:46:45 +0000
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- Thread-topic: [PATCH v2] xen/arm: Use register_t type of cpuinfo entries
Hi Julien,
> On 16 Mar 2021, at 14:42, Julien Grall <julien@xxxxxxx> wrote:
>
>
>
> On 16/03/2021 14:40, Julien Grall wrote:
>> Hi Bertrand,
>> On 15/03/2021 10:38, Bertrand Marquis wrote:
>>> All cpu identification registers that we store in the cpuinfo structure
>>> are 64bit on arm64 and 32bit on arm32 so storing the values in 32bit on
>>> arm64 is removing the higher bits which might contain information in the
>>> future.
>>>
>>> This patch is changing the types in cpuinfo to register_t (which is
>>> 32bit on arm32 and 64bit on arm64) and adding the necessary paddings
>>> inside the unions.
>>> For consistency uint64_t entries are also changed to register_t on 64bit
>>> systems.
>>>
>>> It is also fixing all prints using directly the bits values from cpuinfo
>>> to use PRIregister and adapt the printed value to print all bits
>>> available on the architecture.
>>>
>>> Signed-off-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
>> Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
>
> I have committed it to my for-next/4.16 branch.
Thanks
Cheers
Bertrand
>
> Cheers,
>
> --
> Julien Grall
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