[PATCH v4 0/3] KVM: arm64: Errata management for VM Live migration

Marc Zyngier maz at kernel.org
Thu Dec 19 02:07:39 PST 2024


Hi Shameer,

On Wed, 18 Dec 2024 10:53:42 +0000,
Shameer Kolothum <shameerali.kolothum.thodi at huawei.com> wrote:
> 
> Hi,
> 
> v3 --> v4(Minor updates)
> https://lore.kernel.org/kvmarm/20241209115311.40496-1-shameerali.kolothum.thodi@huawei.com/
> 
>  -Changed MIDR/REVIDR to 64 bits based on feedback from Connie
>   and Marc(Patch #3).
>  -Added R-by tags from Sebastian (Thanks!).

Thanks again for putting this together.

I think it would be really good to have a sample userspace
implementation of this extension so that we can play with it for real
before fully committing to it.

I am also wondering is we should make it mandatory that a guest is
presented with an MIDR_EL1.Implementer value set to 0, which denotes
SW use, and would make it plain to the guest (and crucially, guest
userspace) that we are going to play tricks.

Thoughts?

	M.

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



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