Re: [PATCH v2 4/7] i386/cpu: Fix number of addressable IDs field for CPUID.01H.EBX[23:16]

[Zhao Liu <zhao1.liu@intel.com>]

> Hi!
> 
> Previous incarnation of this patch were Cc'd qemu-stable@, as it were
> supposed to be picked up for the stable qemu series.  However, this
> incarnation is not Cc'd to stable, and, most importantly, it relies
> on a feature which was introduced after all released qemu versions.
> Namely, vendor_cpuid_only_v2 is past v10.0.0, which is commit
> 216d9bb6d7716 "i386/cpu: Add x-vendor-cpuid-only-v2 option for
> compatibility".
> 
> Should I omit this change for stable-10.0 series, or should it be
> modified to work in 10.0?

Hi Michael, considerring current fix is covered by compat option,
it's not fit to be backported to the previous version.

This issue has existed for a very long time, and the feedback received
on this is currently one case and it based on a specific topology
configuration, so the impact is limited. Therefore, in this patch
version, I fixed it with the newly added compat option, which also
avoids the controversy about the impact of migration.

So I think you could omit this change for stable-10.0 series, if it's
also okay with Paolo.

Thanks,
Zhao