Re: [RFC/PATCH 15/15] guest: virtio device support, and kvm hypercalls

Carsten Otte wrote:

Currently we dont have PCI on s390. Making virtio_pci usable for s390 seems
more complicated that providing an own stub. This virtio stub is similar to
the lguest one, the memory for the descriptors and the device detection is made
via additional mapped memory on top of the guest storage. We use an external
interrupt with extint code 1237 for host->guest notification. 
  

So, sanity won in the end.

-- 
Any sufficiently difficult bug is indistinguishable from a feature.