K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2018-08-03T18:35:20.072212Z
K 7
svn:log
V 529
Require write access when mmapping BAR.

This actually makes the rights requirements for accessing PCI config
space and BARs using /dev/pci same.  Since unchanged /dev/pci mode
only allows write open for root, default configuration de-facto limits
the BAR read to root only.  In particular, state-changing reads of the
registers are limited to root.

Discussed with:	se
Suggested and reviewed by:	jhb (kernel part)
Sponsored by:	The FreeBSD Foundation
MFC after:	12 days
Differential revision:	https://reviews.freebsd.org/D16580

END