Re: [libvirt] [Qemu-devel] [PATCH/QEMU] s390x/kvm: use cpu_model_available for guarded storage on compat machines
On 10/27/2017 02:45 PM, Christian Borntraeger wrote:
On 10/27/2017 02:31 PM, Halil Pasic wrote:
gs is explicitly disabled.
>
> Now that I think about it, maybe the 2.9 binary is going to reject
> the explicit gs flag altogether, because it's unknown.
>
> Isn't this a problem?
No. This is exactly the _solution_ and not the problem. The target will reject
unknown cpu features and migration will be aborted. This is exactly what the CPU
model is for.
FWIW, I think in your particular case the QEMU will reject the z14
cpu and not even come
to checking the gs.