Re: [PATCH qemu-server] cpu models: only include custom models on x86_64

[Arthur Bied-Charreton <a.bied-charreton@proxmox.com>]

On Tue, May 19, 2026 at 10:17:49AM +0200, Fiona Ebner wrote:
> Am 19.05.26 um 10:13 AM schrieb Fiona Ebner:
> > Am 19.05.26 um 9:51 AM schrieb Arthur Bied-Charreton:
> >> The custom CPU models config does not currently expose a way to specify
> >> an arch and it defaults to x86_64.
> >>
> > 
> > This is not true? It implicitly defaults to the arch of the base model
> > (i.e. reported-model) and custom models for aarch64 can be created and
> > used just fine. Just not created via UI.
> > 
> 
> Also, if the host itself is ARM, then they can also be created via UI,
> right?
> 
Yes, we do not pass any arch parameter to the 
nodes/.../capabilities/qemu/cpu endpoint in the custom model editor 
so the list defaults to the host arch. Thanks for correcting this.
> > 
> >> Only include custom models if $arch is set to x86_64 to prevent listing
> >> x86_64-only custom models in the CPU model selector for arm VMs.
> >>
> >> Signed-off-by: Arthur Bied-Charreton <a.bied-charreton@proxmox.com>
> > 
> > We should rather filter out the models where the base model does not fit
> > the arch.
> >