John Baldwin ffe1b10d95 Enable I/O MMU when PCI pass through is first used. ... Rather than enabling the I/O MMU when the vmm module is loaded, defer initialization until the first attempt to pass a PCI device through to a guest. If the I/O MMU fails to initialize or is not present, than fail the attempt to pass a PCI device through to a guest. The hw.vmm.force_iommu tunable has been removed since the I/O MMU is no longer enabled during boot. However, the I/O MMU support can be disabled by setting the hw.vmm.iommu.enable tunable to 0 to prevent use of the I/O MMU on any systems where it is buggy. Reviewed by: grehan MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D7448		2016-08-26 20:15:22 +00:00
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iommu.c	Enable I/O MMU when PCI pass through is first used.	2016-08-26 20:15:22 +00:00
iommu.h	Enable I/O MMU when PCI pass through is first used.	2016-08-26 20:15:22 +00:00
ppt.c
ppt.h
vatpic.c
vatpic.h
vatpit.c
vatpit.h
vhpet.c	Increase number of I/O APIC pins from 24 to 32 to give PCI up to 16 IRQs.	2016-07-14 14:35:25 +00:00
vhpet.h
vioapic.c	Increase number of I/O APIC pins from 24 to 32 to give PCI up to 16 IRQs.	2016-07-14 14:35:25 +00:00
vioapic.h
vlapic_priv.h
vlapic.c
vlapic.h
vpmtmr.c
vpmtmr.h
vrtc.c
vrtc.h