For development purposes, it is very convenient to boot Xen as a PVH guest,
with an XTF PV or PVH "dom0". The edit-compile-go cycle is a matter of
seconds, and you can reasonably insert printk() debugging in places which
which would be completely infeasible when booting fully-fledged guests.
However, the PVH dom0 path insists on having a working IOMMU, which doesn't
exist when virtualised as a PVH guest, and isn't necessary for XTF anyway.
Introduce a developer mode to skip the IOMMU requirement.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Release-acked-by: Juergen Gross <jgross@suse.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Andrew Cooper
e1fe5f9c38