Re: [PATCH v2] KVM: x86: Do not return host topology information from KVM_GET_SUPPORTED_CPUID

[Paolo Bonzini]

On 1/26/23 17:06, Jim Mattson wrote:
> > > Sadly, there isn't a single kernel involved. People running our VMM on
> > > their desktops are going to be impacted as soon as this patch hits
> > > that distro. (I don't know if I can say which distro that is.) So, now
> > > we have to get the VMM folks to urgently accommodate this change and
> > > get a new distribution out.
> >
> > Ok, this is what is needed to make a more informed choice.  To be clear,
> > this is _still_ not public (for example it's not ChromeOS), so there is
> > at least some control on what version of the VMM they use?  Would it
> > make sense to buy you a few months by deferring this patch to Linux 6.3-6.5?
>
> Mainline isn't a problem. I'm more worried about 5.19 LTS.

5.19 is not LTS, is it?  This patch is only in 6.1.7 and 6.1.8 as far as 
stable kernels is concerned, should I ask Greg to revert it there?

Paolo