Konstantin Belousov 738a5a4f41 Detect whether x2APIC on VMWare is usable without interrupt
redirection support.  Older versions of the hypervisor mis-interpret
the cpuid format in ioapic registers when x2APIC is turned on, but IR
is not used by the guest OS.

Based on:	Linux commit 4cca6ea04d31c22a7d0436949c072b27bde41f86
Tested by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	2 months
2015-02-14 09:00:12 +00:00
..
2014-09-30 16:46:45 +00:00
2014-07-07 00:27:09 +00:00