Hello,After 77af8a2b9 (hw/i386: Use Rev3 FADT (ACPI 2.0) instead of Rev1 to improve guest OS support.) OS X 10.11.6 hangs during boot near detecting IOAPIC. (Gabriel's latest v3 applesmc patch series does not fix this.) Maybe another register needs to be implemented somewhere?
Regards, BALATON Zoltan