K 10
svn:author
V 4
neel
K 8
svn:date
V 27
2014-12-20T04:57:45.660630Z
K 7
svn:log
V 349
Various 8259 device model improvements:

- implement 8259 "polled" mode.
- set 'atpic->sfn' if bit 4 in ICW4 is set during master initialization.
- report error if guest tries to enable the "special mask" mode.

Differential Revision:	https://reviews.freebsd.org/D1328
Reviewed by:		tychon
Reported by:		grehan
Tested by:		grehan
MFC after:		1 week

END