Re: [Qemu-devel] [PATCH v1 0/2] s390x cpu model improvements for KVM

[Christian Borntraeger]

On 05/31/2017 09:34 PM, David Hildenbrand wrote:
> We should properly forward the CPUID format bit. CPU model
> detection on systems without IBC might select a model with a wrong
> CPU type (esp. selecting the business class (BC) model on an enterprise
> class (EC) machine). So let's improve that, too.
> 
> I am also preparing a patch to properly indicate the correct cpu type
> to the guest via STORE CPU ID and STORE HYPERVISOR INFORMATION for the
> TCG case, but will send that separately after I tested it (want to write a
> kvm-unit-test for STORE CPU ID).
> 
> David Hildenbrand (2):
>   s390x/cpumodel: take care of the cpuid format bit for KVM
>   s390x/cpumodel: improve defintion search without an IBC
> 
>  target/s390x/cpu_models.c | 10 ++++++++++
>  target/s390x/cpu_models.h | 10 +++++++---
>  target/s390x/kvm.c        |  1 +
>  3 files changed, 18 insertions(+), 3 deletions(-)
> 

I like both patches in terms of "yes, its the right thing to do".
Jason can you have a look? I might need some days to catch up
with other things before I can look into the patches.