Neel Natu ac721e53ec 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
2014-12-20 04:57:45 +00:00
..
2014-12-19 20:51:54 +00:00
2014-11-28 04:07:06 +00:00
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