jhb 731da97ac4 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
..
acpica	sys/amd64: Small spelling fixes.	2016-05-03 22:13:04 +00:00
amd64	The pmap_delayed_invl_wait() function blocks on turnstile, it does not	2016-08-11 12:37:11 +00:00
cloudabi32	Make execution of 32-bit CloudABI executables work on amd64.	2016-08-24 10:51:33 +00:00
cloudabi64	Convert pointers obtained from the threadattr_t structure with TO_PTR().	2016-08-24 10:13:18 +00:00
conf	Make execution of 32-bit CloudABI executables work on amd64.	2016-08-24 10:51:33 +00:00
ia32	Convert ss_sp in stack_t and sigstack to void *.	2016-01-27 17:55:01 +00:00
include	Fix build for !SMP kernels after the Xen MSIX workaround.	2016-08-22 21:23:17 +00:00
linux	Don't create pointless backups of generated files in "make sysent".	2016-07-28 21:29:04 +00:00
linux32	Don't create pointless backups of generated files in "make sysent".	2016-07-28 21:29:04 +00:00
pci
vmm	Enable I/O MMU when PCI pass through is first used.	2016-08-26 20:15:22 +00:00
Makefile	Bring the tags and links entries for amd64 up to date.	2015-10-27 22:59:24 +00:00