K 10
svn:author
V 6
royger
K 8
svn:date
V 27
2018-09-13T07:11:11.832013Z
K 7
svn:log
V 247
xen: limit the usage of PIRQs to a legacy PVH Dom0

That's the only mode in FreeBSD that requires the usage of PIRQs, so
there's no need to attach the PIRQ PIC when running in other modes.

Approved by:		re (gjb)
Sponsored by:		Citrix Systems R&D

END