Re: [PATCH v9 0/9] IPI virtualization support for VM

Sean Christopherson
2022-05-19T23:41:31Z

On Thu, May 19, 2022, Chao Gao wrote:
> On Tue, May 17, 2022 at 10:02:23PM +0800, Chao Gao wrote:
> >+ Maxim
> >
> >On Tue, May 17, 2022 at 09:53:26PM +0800, Chao Gao wrote:
> >>On Mon, May 16, 2022 at 08:49:52PM +0000, Sean Christopherson wrote:
> >>>Shouldn't we have a solution for the read-only APIC_ID mess before this is merged?
>
> Paolo & Sean,
>
> If a solution for read-only APIC ID mess is needed before merging IPIv
> series, do you think the Maxim's patch [1] after some improvement will
> suffice? Let us know if there is any gap.

Yep, inhibiting APICv if APIC ID is changed should do the trick, and it's nice and
simple. I can't think of any gaps.

> [1]: https://lore.kernel.org/all/20220427200314.276673-3-mlevitsk@redhat.com/