Comment # 5 on bug 1189965 from Michael H. Kelley

There is a subfield in the guest OS ID to allow a distro to be specifically
identified.  That's what this patch does -- it codes the subfield to indicate
"SUSE".  This kind of change obviously won't go upstream, and we never did come
up with a better scheme for setting the subfield on a per-distro basis.

There is internal Microsoft telemetry based on the guest OS ID.  In the kernel
panic path, the guest OS ID value is recorded and logged by Hyper-V, and it is
useful to be able to know the distro that was running, independent of the
kernel version number.

If SUSE is willing to continue to carry this one-off patch for the purposes
described here, we think it would be useful to continue to do so.