Alex Williamson 03a76b60f8 vfio: Include No-IOMMU mode ... There is really no way to safely give a user full access to a DMA capable device without an IOMMU to protect the host system. There is also no way to provide DMA translation, for use cases such as device assignment to virtual machines. However, there are still those users that want userspace drivers even under those conditions. The UIO driver exists for this use case, but does not provide the degree of device access and programming that VFIO has. In an effort to avoid code duplication, this introduces a No-IOMMU mode for VFIO. This mode requires building VFIO with CONFIG_VFIO_NOIOMMU and enabling the "enable_unsafe_noiommu_mode" option on the vfio driver. This should make it very clear that this mode is not safe. Additionally, CAP_SYS_RAWIO privileges are necessary to work with groups and containers using this mode. Groups making use of this support are named /dev/vfio/noiommu-$GROUP and can only make use of the special VFIO_NOIOMMU_IOMMU for the container. Use of this mode, specifically binding a device without a native IOMMU group to a VFIO bus driver will taint the kernel and should therefore not be considered supported. This patch includes no-iommu support for the vfio-pci bus driver only. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com>		2015-12-21 15:28:11 -07:00
..
android
byteorder
caif
can	can: avoid using timeval for uapi	2015-10-13 17:42:34 +02:00
cifs
dvb
genwqe
hdlc
hsi
iio	iio: resistance: add IIO_RESISTANCE channel type	2015-09-23 20:23:25 +01:00
isdn
mmc	mmc: block: Add new ioctl to send multi commands	2015-10-26 16:00:00 +01:00
netfilter	netfilter: nfnetlink_log: allow to attach conntrack	2015-10-05 17:32:14 +02:00
netfilter_arp
netfilter_bridge
netfilter_ipv4
netfilter_ipv6	netfilter: ip6t_REJECT: added missing icmpv6 codes	2015-08-26 20:32:35 +02:00
nfsd
raid	raid5: enable log for raid array with cache disk	2015-11-01 13:48:26 +11:00
spi
sunrpc
tc_act
tc_ematch
usb	USB patches for 4.4-rc1	2015-11-04 21:26:27 -08:00
wimax
a.out.h
acct.h
adb.h
adfs_fs.h
affs_hardblocks.h
agpgart.h
aio_abi.h
am437x-vpfe.h
apm_bios.h
arcfb.h
atalk.h
atm.h
atm_eni.h
atm_he.h
atm_idt77105.h
atm_nicstar.h
atm_tcp.h
atm_zatm.h	atm: remove 'struct zatm_t_hist'	2015-10-05 03:16:46 -07:00
atmapi.h
atmarp.h
atmbr2684.h
atmclip.h
atmdev.h
atmioc.h
atmlec.h
atmmpc.h
atmppp.h
atmsap.h
atmsvc.h
audit.h	Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit	2015-09-08 13:34:59 -07:00
auto_fs.h
auto_fs4.h
auxvec.h
ax25.h
b1lli.h
baycom.h
bcache.h
bcm933xx_hcs.h
bfs_fs.h
binfmts.h
blkpg.h	mtd: provide proper 32/64-bit compat_ioctl() support for BLKPG	2015-09-29 13:37:04 -07:00
blktrace_api.h
bpf.h	bpf: add support for persistent maps/progs	2015-11-02 22:48:39 -05:00
bpf_common.h
bpqether.h
bsg.h
btrfs.h	btrfs: extend balance filter usage to take minimum and maximum	2015-10-26 19:38:30 -07:00
can.h
capability.h
capi.h
cciss_defs.h
cciss_ioctl.h
cdrom.h
cgroupstats.h
chio.h
cm4000_cs.h
cn_proc.h
coda.h
coda_psdev.h
coff.h
connector.h
const.h
cramfs_fs.h
cryptouser.h
cuda.h
cyclades.h
cycx_cfm.h
dcbnl.h
dccp.h
dlm.h
dlm_device.h	dlm: fix lvb copy for user locks	2015-08-25 14:41:50 -05:00
dlm_netlink.h
dlm_plock.h
dlmconstants.h
dm-ioctl.h	dm: add support for passing through persistent reservations	2015-10-31 19:05:59 -04:00
dm-log-userspace.h
dn.h
dqblk_xfs.h
edd.h
efs_fs_sb.h
elf-em.h	elf-em.h: move EM_MICROBLAZE to the common header	2015-09-10 06:54:15 +02:00
elf-fdpic.h
elf.h
elfcore.h
errno.h
errqueue.h
ethtool.h	clarify implementation of ethtool's get_ts_info op	2015-07-17 19:59:04 -07:00
eventpoll.h
fadvise.h
falloc.h
fanotify.h
fb.h
fcntl.h
fd.h
fdreg.h
fib_rules.h	fib: Add fib rule match on tunnel id	2015-07-21 10:39:06 -07:00
fiemap.h
filter.h
firewire-cdev.h
firewire-constants.h
flat.h
fou.h
fs.h	ext4: reserve code points for the project quota feature	2015-10-17 16:15:18 -04:00
fsl_hypervisor.h
fuse.h	fuse: device fd clone	2015-07-01 16:26:08 +02:00
futex.h
gameport.h
gen_stats.h
genetlink.h
gfs2_ondisk.h
gigaset_dev.h
gsmmux.h	tty: linux/gsmmux.h needs linux/types.h	2015-07-23 17:48:43 -07:00
hash_info.h
hdlc.h
hdlcdrv.h
hdreg.h
hid.h
hiddev.h
hidraw.h
hpet.h
hsr_netlink.h
hw_breakpoint.h
hyperv.h
hysdn_if.h
i2c-dev.h	i2c-dev: Fix typo in ioctl name reference	2015-10-23 23:26:43 +02:00
i2c.h
i2o-dev.h
i8k.h
icmp.h
icmpv6.h
if.h
if_addr.h
if_addrlabel.h
if_alg.h
if_arcnet.h	arcnet: fix indentation of if_arcnet.h	2015-09-23 08:44:22 +02:00
if_arp.h
if_bonding.h
if_bridge.h	bridge: vlan: add per-vlan struct and move to rhashtables	2015-09-29 13:36:06 -07:00
if_cablemodem.h
if_eql.h
if_ether.h	ether: add IEEE 1722 ethertype - TSN	2015-09-09 22:06:29 -07:00
if_fc.h
if_fddi.h
if_frad.h
if_hippi.h
if_infiniband.h
if_link.h	geneve: implement support for IPv6-based tunnels	2015-10-30 12:10:51 +09:00
if_ltalk.h
if_packet.h	packet: add extended BPF fanout mode	2015-08-17 14:22:48 -07:00
if_phonet.h
if_plip.h
if_ppp.h
if_pppol2tp.h
if_pppox.h
if_slip.h
if_team.h
if_tun.h
if_tunnel.h	ip_gre: Add support to collect tunnel metadata.	2015-08-10 14:03:54 -07:00
if_vlan.h
if_x25.h
igmp.h
ila.h	net: Identifier Locator Addressing module	2015-08-17 21:33:06 -07:00
in.h	api: fix compatibility of linux/in.h with netinet/in.h	2015-06-29 18:56:21 -07:00
in6.h
in_route.h
inet_diag.h	net: inet_diag: export IPV6_V6ONLY sockopt	2015-06-24 02:51:39 -07:00
inotify.h
input-event-codes.h	Input: add input-event-codes header file	2015-10-16 15:32:05 -07:00
input.h	Input: evdev - add event-mask API	2015-10-26 19:06:48 -07:00
ioctl.h
ip.h
ip6_tunnel.h
ip_vs.h	ipvs: add more mcast parameters for the sync daemon	2015-08-21 09:10:11 -07:00
ipc.h
ipmi.h
ipmi_msgdefs.h
ipsec.h
ipv6.h	net: ipv6 sysctl option to ignore routes when nexthop link is down	2015-08-13 21:27:19 -07:00
ipv6_route.h
ipx.h
irda.h
irqnr.h
isdn.h
isdn_divertif.h
isdn_ppp.h
isdnif.h
iso_fs.h
ivtv.h
ivtvfb.h
ixjuser.h
jffs2.h
joystick.h
Kbuild	uapi: export ila.h	2015-12-11 23:39:33 -05:00
kcmp.h
kd.h
kdev_t.h
kernel-page-flags.h	proc: export idle flag via kpageflags	2015-09-10 13:29:01 -07:00
kernel.h
kernelcapi.h
kexec.h
keyboard.h
keyctl.h
kfd_ioctl.h
kvm.h	kvm: add capability for any-length ioeventfds	2015-10-01 15:06:31 +02:00
kvm_para.h
l2tp.h
libc-compat.h	api: fix compatibility of linux/in.h with netinet/in.h	2015-06-29 18:56:21 -07:00
lightnvm.h	lightnvm: Support for Open-Channel SSDs	2015-10-29 16:21:42 +09:00
limits.h
llc.h
loop.h	block: loop: introduce ioctl command of LOOP_SET_DIRECT_IO	2015-09-23 11:01:16 -06:00
lp.h
lwtunnel.h	lwtunnel: remove source and destination UDP port config option	2015-09-24 14:31:37 -07:00
magic.h	bpf: add support for persistent maps/progs	2015-11-02 22:48:39 -05:00
major.h
map_to_7segment.h
matroxfb.h
mdio.h
media-bus-format.h
media.h
mei.h	mei: add async event notification ioctls	2015-08-03 17:30:00 -07:00
membarrier.h	sys_membarrier(): system-wide memory barrier (generic, x86)	2015-09-11 15:21:34 -07:00
memfd.h
mempolicy.h
meye.h
mic_common.h	misc: mic: Update MIC host daemon with COSM changes	2015-10-04 12:54:54 +01:00
mic_ioctl.h
mii.h
minix_fs.h
mman.h
mmtimer.h
module.h
mpls.h	mpls: Use definition for reserved label checks	2015-08-03 22:35:00 -07:00
mpls_iptunnel.h	mpls: ip tunnel support	2015-07-21 10:39:05 -07:00
mqueue.h
mroute.h
mroute6.h
msdos_fs.h
msg.h
mtio.h
n_r3964.h
nbd.h
ncp.h
ncp_fs.h
ncp_mount.h
ncp_no.h
ndctl.h	libnvdimm: Add DSM support for Address Range Scrub commands	2015-07-27 22:53:19 -04:00
neighbour.h	net: add explicit logging and stat for neighbour table overflow	2015-08-10 13:46:21 -07:00
net.h
net_dropmon.h
net_namespace.h
net_tstamp.h
netconf.h	ipv4: add support for linkdown sysctl to netconf	2015-07-08 23:34:53 -07:00
netdevice.h
netfilter.h
netfilter_arp.h
netfilter_bridge.h
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netlink.h	net: Add support for filtering neigh dump by master device	2015-09-29 21:33:54 -07:00
netlink_diag.h
netrom.h
nfc.h	NFC: netlink: Add missing NFC_ATTR comments	2015-10-27 03:55:10 +01:00
nfs.h	nfs: use btrfs ioctl defintions for clone	2015-11-23 21:53:08 -05:00
nfs2.h
nfs3.h
nfs4.h	NFS: Update NFS4_BITMAP_SIZE	2015-08-27 19:44:53 -04:00
nfs4_mount.h
nfs_fs.h
nfs_idmap.h
nfs_mount.h
nfsacl.h	nfsd: Add macro NFS_ACL_MASK for ACL	2015-07-20 14:58:46 -04:00
nl80211.h	cfg80211: Add multiple scan plans for scheduled scan	2015-10-13 10:35:26 +02:00
nubus.h
nvme_ioctl.h	nvme: move hardware structures out of the uapi version of nvme.h	2015-10-09 10:40:37 -06:00
nvram.h
omap3isp.h
omapfb.h
oom.h
openvswitch.h	openvswitch: fix trivial comment typo	2015-12-14 14:00:09 -05:00
packet_diag.h
param.h
parport.h
patchkey.h
pci.h
pci_regs.h	PCI: Make Enhanced Allocation bitmasks more obvious	2015-10-29 17:35:40 -05:00
perf_event.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-11-04 09:41:05 -08:00
personality.h
pfkeyv2.h
pg.h
phantom.h
phonet.h
pkt_cls.h	bpf: add bpf_redirect() helper	2015-09-17 21:09:07 -07:00
pkt_sched.h
pktcdvd.h
pmu.h
poll.h
posix_types.h
ppdev.h
ppp-comp.h
ppp-ioctl.h
ppp_defs.h
pps.h
pr.h	block: add an API for Persistent Reservations	2015-10-21 14:46:56 -06:00
prctl.h	capabilities: ambient capabilities	2015-09-04 16:54:41 -07:00
psci.h	drivers: firmware: psci: add system suspend support	2015-10-02 14:35:17 +01:00
ptp_clock.h
ptrace.h	seccomp, ptrace: add support for dumping seccomp filters	2015-10-27 19:55:13 -07:00
qnx4_fs.h
qnxtypes.h
quota.h
radeonfb.h
random.h
raw.h
rds.h
reboot.h
reiserfs_fs.h
reiserfs_xattr.h
resource.h
rfkill.h
romfs_fs.h
rose.h
route.h
rtc.h
rtnetlink.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-10-20 06:08:27 -07:00
scc.h
sched.h
scif_ioctl.h	misc: mic: SCIF RMA header file and IOCTL changes	2015-10-04 12:54:54 +01:00
screen_info.h	efifb: Add support for 64-bit frame buffer addresses	2015-10-12 14:20:06 +01:00
sctp.h
sdla.h
seccomp.h
securebits.h	capabilities: add a securebit to disable PR_CAP_AMBIENT_RAISE	2015-09-04 16:54:41 -07:00
selinux_netlink.h
sem.h
serial.h
serial_core.h
serial_reg.h
serio.h
shm.h
signal.h
signalfd.h
smiapp.h
snmp.h	net: track success and failure of TCP PMTU probing	2015-07-21 22:36:33 -07:00
sock_diag.h
socket.h
sockios.h
sonet.h
sonypi.h
sound.h
soundcard.h
stat.h
stddef.h
stm.h	stm class: Introduce an abstraction for System Trace Module devices	2015-10-04 20:28:58 +01:00
string.h
suspend_ioctls.h
swab.h
synclink.h
sysctl.h
sysinfo.h
target_core_user.h	target: use stringify.h instead of own definition	2015-09-11 00:32:36 -07:00
taskstats.h
tcp.h
tcp_metrics.h
telephony.h
termios.h
thermal.h
time.h
times.h
timex.h
tiocl.h
tipc.h
tipc_config.h
tipc_netlink.h
toshiba.h	toshiba_acpi: Add /dev/toshiba_acpi device	2015-07-24 14:15:10 -07:00
tty.h
tty_flags.h
types.h
udf_fs_i.h
udp.h
uhid.h
uinput.h
uio.h
ultrasound.h
un.h
unistd.h
unix_diag.h
usbdevice_fs.h
usbip.h
userfaultfd.h	userfaultfd: remove kernel header include from uapi header	2015-10-01 21:42:35 -04:00
userio.h	Input: add userio module	2015-10-27 18:55:31 -07:00
utime.h
utsname.h
uuid.h
uvcvideo.h
v4l2-common.h
v4l2-controls.h	[media] v4l2: add RF gain control	2015-10-20 15:37:56 -02:00
v4l2-dv-timings.h
v4l2-mediabus.h
v4l2-subdev.h
veth.h
vfio.h	vfio: Include No-IOMMU mode	2015-12-21 15:28:11 -07:00
vhost.h
videodev2.h	[media] v4l: add type field to v4l2_modulator struct	2015-10-20 15:42:47 -02:00
virtio_9p.h
virtio_balloon.h
virtio_blk.h
virtio_config.h
virtio_console.h
virtio_gpu.h	virtio-gpu: add 3d/virgl support	2015-10-16 10:44:02 +02:00
virtio_ids.h
virtio_input.h
virtio_net.h	virtio_net: document VIRTIO_NET_CTRL_GUEST_OFFLOADS	2015-07-01 10:11:17 +02:00
virtio_pci.h	virtio: define virtio_pci_cfg_cap in header.	2015-07-07 14:27:05 +03:00
virtio_ring.h	virtio: Fix typecast of pointer in vring_init()	2015-07-07 14:27:04 +03:00
virtio_rng.h
virtio_scsi.h
virtio_types.h
vm_sockets.h
vsp1.h	[media] media: uapi: vsp1: Use __u32 instead of u32	2015-07-06 08:25:50 -03:00
vt.h
wait.h
wanrouter.h
watchdog.h
wil6210_uapi.h
wimax.h
wireless.h
x25.h
xattr.h
xfrm.h
xilinx-v4l2-controls.h
zorro.h
zorro_ids.h