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Re: [XEN][PATCH] xen/arm: restrict cpu_up_send_sgi() to arm32
- To: Stefano Stabellini <sstabellini@xxxxxxxxxx>
- From: Bertrand Marquis <Bertrand.Marquis@xxxxxxx>
- Date: Mon, 22 Sep 2025 09:48:36 +0000
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- Cc: Julien Grall <julien@xxxxxxx>, Grygorii Strashko <grygorii_strashko@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Mon, 22 Sep 2025 09:49:35 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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- Thread-index: AQHcJC1gjv9t41MjxkWbCWqmFW+v17SQHGmAgA7nUIA=
- Thread-topic: [XEN][PATCH] xen/arm: restrict cpu_up_send_sgi() to arm32
Hi,
> On 13 Sep 2025, at 00:12, Stefano Stabellini <sstabellini@xxxxxxxxxx> wrote:
>
> On Fri, 12 Sep 2025, Julien Grall wrote:
>> Hi Grygorii,
>>
>> On 11/09/2025 09:12, Grygorii Strashko wrote:
>>> From: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
>>>
>>> Restrict cpu_up_send_sgi() function to arm32 code as it's used by arm32
>>> platforms only and unreachable on arm64 (Misra rule 2.1).
>>>
>>> Signed-off-by: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
>>> ---> Logically cpu_up_send_sgi() should be moved in arm32, but source is
>>> "GPL-2.0-or-later" while possible destination is "GPL-2.0-only", so put it
>>> under ifdef for now.
>>
>> :(. I don't know if we will ever solve this license mess... Looking at the
>> list of platform using cpu_up_send_sgi(), all the platforms are 10+ years old
>> and to be honest except maybe the rcar2 development platforms. I doubt there
>> are anyone using them.
>>
>> So I would be tempted to get rid of them and mandate PSCI when booting on
>> Xen.
>>
>> Bertrand, Michal, Stefano any thoughts?
>
> I am OK with that.
I am OK with that to.
Cheers
Bertrand
>
>
>> Meanwhile for this patch:
>>
>> Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
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