Regarding the Issue of vNMI Not Supporting Live Migration

Regarding the Issue of vNMI Not Supporting Live Migration

[Jinqian Yang]

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?


Thanks,
Jinqian

Re: Regarding the Issue of vNMI Not Supporting Live Migration

[Marc Zyngier]

On Fri, 01 Aug 2025 09:00:07 +0100,
Jinqian Yang <yangjinqian1@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.

-- 
Without deviation from the norm, progress is not possible.

Re: Regarding the Issue of vNMI Not Supporting Live Migration

[Jinqian Yang]

On 2025/8/1 20:07, Marc Zyngier wrote:
> On Fri, 01 Aug 2025 09:00:07 +0100,
> Jinqian Yang <yangjinqian1@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