How to share Architecture values

Hi Newbie to contribution.

Referring to the bug,
https://bugs.launchpad.net/nova/+bug/1616539.

image with invalid architecture value(Eg : X96 instead of X86_64) fails while we create instance.
Nova , checks the listed of supported arch : https://github.com/openstack/nova/blob/master/nova/compute/arch.py#L30

I suggest that it will be good, if we check the Architecture value while we create glance image.
My question is how do we share this architecture values across different services(nova,glance ,etc..) in openstack. Instead of having the architecture values in Nova, can we centralize this value.