Regarding the Issue of vNMI Not Supporting Live Migration

Jinqian Yang yangjinqian1 at huawei.com
Fri Aug 1 20:05:55 PDT 2025



On 2025/8/1 20:07, Marc Zyngier wrote:
> On Fri, 01 Aug 2025 09:00:07 +0100,
> Jinqian Yang <yangjinqian1 at huawei.com> wrote:
>>
>> Hi,marc
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=arm64/nmi
>>
>> During the testing of this set of vNMI patches, it was discovered that
>> vNMI do not support live
>> migration. The reason is that GICD_INMIR/GICR_INMIR0 have not been
>> migrated, causing
>> irq->nmi to reset to 0 after migration. Therefore, to resolve this
>> issue, we need to complete the
>> migration of GICD_INMIR/GICR_INMIR0. This set of patches does not seem
>> to have been uploaded
>> to the mainline. I was wondering if these are scheduled for upload to
>> the mainline?
> 
> There patches are *dead*, and will *not* be upstreamed as such. You
> can tell from the date and the base commit that they are old and
> unmaintained.
> 
> Please do not pick random branches from my tree.
> 
> Thanks,
> 
> 	M.
> 
Noted with thanks — will avoid referencing outdated branches in the future.

Thanks,
Jinqian




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