FM / linux

/usr/include/linux

Name	Size	Mode	Actions
android/	-	0755	rm
byteorder/	-	0755	rm
caif/	-	0755	rm
can/	-	0755	rm
cifs/	-	0755	rm
dvb/	-	0755	rm
genwqe/	-	0755	rm
hdlc/	-	0755	rm
hsi/	-	0755	rm
iio/	-	0755	rm
isdn/	-	0755	rm
mmc/	-	0755	rm
netfilter/	-	0755	rm
netfilter_arp/	-	0755	rm
netfilter_bridge/	-	0755	rm
netfilter_ipv4/	-	0755	rm
netfilter_ipv6/	-	0755	rm
nfsd/	-	0755	rm
raid/	-	0755	rm
sched/	-	0755	rm
spi/	-	0755	rm
sunrpc/	-	0755	rm
tc_act/	-	0755	rm
tc_ematch/	-	0755	rm
usb/	-	0755	rm
wimax/	-	0755	rm
a.out.h	6892	0644	edit dl rm
acct.h	3733	0644	edit dl rm
adb.h	1140	0644	edit dl rm
adfs_fs.h	936	0644	edit dl rm
affs_hardblocks.h	1544	0644	edit dl rm
agpgart.h	3940	0644	edit dl rm
aio_abi.h	3417	0644	edit dl rm
am437x-vpfe.h	3681	0644	edit dl rm
apm_bios.h	3683	0644	edit dl rm
arcfb.h	213	0644	edit dl rm
arm_sdei.h	2751	0644	edit dl rm
aspeed-lpc-ctrl.h	1780	0644	edit dl rm
atalk.h	1023	0644	edit dl rm
atm.h	7888	0644	edit dl rm
atmapi.h	952	0644	edit dl rm
atmarp.h	1296	0644	edit dl rm
atmbr2684.h	3271	0644	edit dl rm
atmclip.h	576	0644	edit dl rm
atmdev.h	7677	0644	edit dl rm
atmioc.h	1646	0644	edit dl rm
atmlec.h	2381	0644	edit dl rm
atmmpc.h	4226	0644	edit dl rm
atmppp.h	639	0644	edit dl rm
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atmsvc.h	1853	0644	edit dl rm
atm_eni.h	648	0644	edit dl rm
atm_he.h	406	0644	edit dl rm
atm_idt77105.h	955	0644	edit dl rm
atm_nicstar.h	1278	0644	edit dl rm
atm_tcp.h	1622	0644	edit dl rm
atm_zatm.h	1540	0644	edit dl rm
audit.h	20394	0644	edit dl rm
auto_dev-ioctl.h	4986	0644	edit dl rm
auto_fs.h	6428	0644	edit dl rm
auto_fs4.h	451	0644	edit dl rm
auxvec.h	1597	0644	edit dl rm
ax25.h	2824	0644	edit dl rm
b1lli.h	1717	0644	edit dl rm
batadv_packet.h	20495	0644	edit dl rm
batman_adv.h	11977	0644	edit dl rm
baycom.h	883	0644	edit dl rm
bcache.h	8366	0644	edit dl rm
bcm933xx_hcs.h	419	0644	edit dl rm
bfs_fs.h	1893	0644	edit dl rm
binfmts.h	628	0644	edit dl rm
blkpg.h	904	0644	edit dl rm
blktrace_api.h	4701	0644	edit dl rm
blkzoned.h	6608	0644	edit dl rm
bpf.h	228660	0644	edit dl rm
bpfilter.h	465	0644	edit dl rm
bpf_common.h	1367	0644	edit dl rm
bpf_perf_event.h	529	0644	edit dl rm
bpqether.h	981	0644	edit dl rm
bsg.h	2494	0644	edit dl rm
bt-bmc.h	572	0644	edit dl rm
btf.h	4796	0644	edit dl rm
btrfs.h	28913	0644	edit dl rm
btrfs_tree.h	25285	0644	edit dl rm
can.h	7881	0644	edit dl rm
capability.h	13521	0644	edit dl rm
capi.h	3124	0644	edit dl rm
cciss_defs.h	3281	0644	edit dl rm
cciss_ioctl.h	2761	0644	edit dl rm
cdrom.h	28859	0644	edit dl rm
cec-funcs.h	53901	0644	edit dl rm
cec.h	37691	0644	edit dl rm
cfm_bridge.h	1456	0644	edit dl rm
cgroupstats.h	2219	0644	edit dl rm
chio.h	5344	0644	edit dl rm
close_range.h	377	0644	edit dl rm
cm4000_cs.h	1806	0644	edit dl rm
cn_proc.h	3456	0644	edit dl rm
coda.h	17505	0644	edit dl rm
coda_psdev.h	783	0644	edit dl rm
coff.h	12476	0644	edit dl rm
connector.h	2253	0644	edit dl rm
const.h	788	0644	edit dl rm
coresight-stm.h	674	0644	edit dl rm
cramfs_fs.h	3555	0644	edit dl rm
cryptouser.h	3392	0644	edit dl rm
cuda.h	905	0644	edit dl rm
cyclades.h	17108	0644	edit dl rm
cycx_cfm.h	2990	0644	edit dl rm
dcbnl.h	25238	0644	edit dl rm
dccp.h	6436	0644	edit dl rm
devlink.h	21556	0644	edit dl rm
dlm.h	2553	0644	edit dl rm
dlmconstants.h	5080	0644	edit dl rm
dlm_device.h	2543	0644	edit dl rm
dlm_netlink.h	1159	0644	edit dl rm
dlm_plock.h	894	0644	edit dl rm
dm-ioctl.h	11400	0644	edit dl rm
dm-log-userspace.h	15191	0644	edit dl rm
dma-buf.h	5247	0644	edit dl rm
dn.h	4642	0644	edit dl rm
dqblk_xfs.h	9245	0644	edit dl rm
edd.h	5604	0644	edit dl rm
efs_fs_sb.h	2227	0644	edit dl rm
elf-em.h	2187	0644	edit dl rm
elf-fdpic.h	1124	0644	edit dl rm
elf.h	13471	0644	edit dl rm
elfcore.h	2995	0644	edit dl rm
errno.h	23	0644	edit dl rm
errqueue.h	1477	0644	edit dl rm
erspan.h	1059	0644	edit dl rm
ethtool.h	83855	0644	edit dl rm
ethtool_netlink.h	22826	0644	edit dl rm
eventpoll.h	2734	0644	edit dl rm
fadvise.h	842	0644	edit dl rm
falloc.h	3584	0644	edit dl rm
fanotify.h	5341	0644	edit dl rm
fb.h	16477	0644	edit dl rm
fcntl.h	4174	0644	edit dl rm
fd.h	11672	0644	edit dl rm
fdreg.h	5420	0644	edit dl rm
fib_rules.h	2036	0644	edit dl rm
fiemap.h	2775	0644	edit dl rm
filter.h	2216	0644	edit dl rm
firewire-cdev.h	43886	0644	edit dl rm
firewire-constants.h	3231	0644	edit dl rm
flat.h	2148	0644	edit dl rm
fou.h	694	0644	edit dl rm
fpga-dfl.h	8728	0644	edit dl rm
fs.h	13424	0644	edit dl rm
fsl_hypervisor.h	7301	0644	edit dl rm
fsmap.h	4393	0644	edit dl rm
fuse.h	23473	0644	edit dl rm
futex.h	4993	0644	edit dl rm
gameport.h	897	0644	edit dl rm
genetlink.h	2175	0644	edit dl rm
gen_stats.h	1526	0644	edit dl rm
gfs2_ondisk.h	14743	0644	edit dl rm
gigaset_dev.h	1442	0644	edit dl rm
gpio.h	6751	0644	edit dl rm
gsmmux.h	1041	0644	edit dl rm
gtp.h	681	0644	edit dl rm
hash_info.h	921	0644	edit dl rm
hdlc.h	637	0644	edit dl rm
hdlcdrv.h	2908	0644	edit dl rm
hdreg.h	22703	0644	edit dl rm
hid.h	1901	0644	edit dl rm
hiddev.h	6345	0644	edit dl rm
hidraw.h	1993	0644	edit dl rm
hpet.h	743	0644	edit dl rm
hsr_netlink.h	1081	0644	edit dl rm
hw_breakpoint.h	742	0644	edit dl rm
hyperv.h	11152	0644	edit dl rm
hysdn_if.h	1382	0644	edit dl rm
i2c-dev.h	2612	0644	edit dl rm
i2c.h	7132	0644	edit dl rm
i2o-dev.h	11555	0644	edit dl rm
i8k.h	1528	0644	edit dl rm
icmp.h	2975	0644	edit dl rm
icmpv6.h	4038	0644	edit dl rm
idxd.h	8417	0644	edit dl rm
if.h	10901	0644	edit dl rm
ife.h	351	0644	edit dl rm
if_addr.h	1886	0644	edit dl rm
if_addrlabel.h	721	0644	edit dl rm
if_alg.h	946	0644	edit dl rm
if_arcnet.h	3717	0644	edit dl rm
if_arp.h	6577	0644	edit dl rm
if_bonding.h	5291	0644	edit dl rm
if_bridge.h	19514	0644	edit dl rm
if_cablemodem.h	986	0644	edit dl rm
if_eql.h	1349	0644	edit dl rm
if_ether.h	8248	0644	edit dl rm
if_fc.h	1738	0644	edit dl rm
if_fddi.h	3748	0644	edit dl rm
if_frad.h	3019	0644	edit dl rm
if_hippi.h	4235	0644	edit dl rm
if_infiniband.h	1245	0644	edit dl rm
if_link.h	31005	0644	edit dl rm
if_ltalk.h	210	0644	edit dl rm
if_macsec.h	5832	0644	edit dl rm
if_packet.h	7919	0644	edit dl rm
if_phonet.h	424	0644	edit dl rm
if_plip.h	660	0644	edit dl rm
if_ppp.h	29	0644	edit dl rm
if_pppol2tp.h	3292	0644	edit dl rm
if_pppox.h	4879	0644	edit dl rm
if_slip.h	872	0644	edit dl rm
if_team.h	2600	0644	edit dl rm
if_tun.h	4098	0644	edit dl rm
if_tunnel.h	4512	0644	edit dl rm
if_vlan.h	1831	0644	edit dl rm
if_x25.h	881	0644	edit dl rm
if_xdp.h	3011	0644	edit dl rm
igmp.h	3064	0644	edit dl rm
ila.h	1246	0644	edit dl rm
in.h	10014	0644	edit dl rm
in6.h	7438	0644	edit dl rm
inet_diag.h	4672	0644	edit dl rm
inotify.h	3292	0644	edit dl rm
input-event-codes.h	28606	0644	edit dl rm
input.h	15985	0644	edit dl rm
in_route.h	936	0644	edit dl rm
ioctl.h	163	0644	edit dl rm
iommu.h	4904	0644	edit dl rm
io_uring.h	6207	0644	edit dl rm
ip.h	4728	0644	edit dl rm
ip6_tunnel.h	1953	0644	edit dl rm
ipc.h	2101	0644	edit dl rm
ipmi.h	15442	0644	edit dl rm
ipmi_bmc.h	464	0644	edit dl rm
ipmi_msgdefs.h	3430	0644	edit dl rm
ipmi_ssif_bmc.h	441	0644	edit dl rm
ipsec.h	947	0644	edit dl rm
ipv6.h	3967	0644	edit dl rm
ipv6_route.h	1908	0644	edit dl rm
ipx.h	2347	0644	edit dl rm
ip_vs.h	13631	0644	edit dl rm
irqnr.h	104	0644	edit dl rm
isdn.h	5774	0644	edit dl rm
isdnif.h	2370	0644	edit dl rm
isdn_divertif.h	1200	0644	edit dl rm
isdn_ppp.h	1923	0644	edit dl rm
iso_fs.h	6485	0644	edit dl rm
isst_if.h	5384	0644	edit dl rm
ivtv.h	3022	0644	edit dl rm
ivtvfb.h	1207	0644	edit dl rm
jffs2.h	7018	0644	edit dl rm
joystick.h	3434	0644	edit dl rm
kcm.h	822	0644	edit dl rm
kcmp.h	522	0644	edit dl rm
kcov.h	1099	0644	edit dl rm
kd.h	6253	0644	edit dl rm
kdev_t.h	383	0644	edit dl rm
kernel-page-flags.h	900	0644	edit dl rm
kernel.h	438	0644	edit dl rm
kernelcapi.h	1019	0644	edit dl rm
kexec.h	1835	0644	edit dl rm
keyboard.h	12783	0644	edit dl rm
keyctl.h	3500	0644	edit dl rm
kfd_ioctl.h	28814	0644	edit dl rm
kfd_sysfs.h	4350	0644	edit dl rm
kvm.h	61561	0644	edit dl rm
kvm_para.h	1001	0644	edit dl rm
l2tp.h	5591	0644	edit dl rm
libc-compat.h	8289	0644	edit dl rm
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limits.h	937	0644	edit dl rm
lirc.h	7813	0644	edit dl rm
llc.h	3164	0644	edit dl rm
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lp.h	4190	0644	edit dl rm
lwtunnel.h	2179	0644	edit dl rm
magic.h	3531	0644	edit dl rm
major.h	4713	0644	edit dl rm
map_to_7segment.h	7251	0644	edit dl rm
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max2175.h	1035	0644	edit dl rm
mdio.h	17272	0644	edit dl rm
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membarrier.h	7899	0644	edit dl rm
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mempolicy.h	2231	0644	edit dl rm
meye.h	2529	0644	edit dl rm
mic_common.h	6519	0644	edit dl rm
mic_ioctl.h	2252	0644	edit dl rm
mii.h	9496	0644	edit dl rm
minix_fs.h	2122	0644	edit dl rm
mman.h	1385	0644	edit dl rm
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module.h	255	0644	edit dl rm
mount.h	4546	0644	edit dl rm
mpls.h	2302	0644	edit dl rm
mpls_iptunnel.h	761	0644	edit dl rm
mptcp.h	5608	0644	edit dl rm
mqueue.h	2201	0644	edit dl rm
mroute.h	5427	0644	edit dl rm
mroute6.h	4577	0644	edit dl rm
mrp_bridge.h	1708	0644	edit dl rm
msdos_fs.h	6963	0644	edit dl rm
msg.h	3374	0644	edit dl rm
mtio.h	8175	0644	edit dl rm
nbd-netlink.h	2408	0644	edit dl rm
nbd.h	3024	0644	edit dl rm
ncsi.h	3880	0644	edit dl rm
ndctl.h	6866	0644	edit dl rm
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net.h	2085	0644	edit dl rm
netconf.h	614	0644	edit dl rm
netdevice.h	2253	0644	edit dl rm
netfilter.h	1820	0644	edit dl rm
netfilter_arp.h	445	0644	edit dl rm
netfilter_bridge.h	1168	0644	edit dl rm
netfilter_decnet.h	1979	0644	edit dl rm
netfilter_ipv4.h	2169	0644	edit dl rm
netfilter_ipv6.h	2189	0644	edit dl rm
netlink.h	11495	0644	edit dl rm
netlink_diag.h	1524	0644	edit dl rm
netrom.h	807	0644	edit dl rm
net_dropmon.h	2922	0644	edit dl rm
net_namespace.h	715	0644	edit dl rm
net_tstamp.h	5806	0644	edit dl rm
nexthop.h	1534	0644	edit dl rm
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nfsacl.h	718	0644	edit dl rm
nfs_fs.h	1641	0644	edit dl rm
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nitro_enclaves.h	13152	0644	edit dl rm
nl80211.h	335264	0644	edit dl rm
nsfs.h	639	0644	edit dl rm
nubus.h	8191	0644	edit dl rm
nvme_ioctl.h	2112	0644	edit dl rm
nvram.h	532	0644	edit dl rm
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omapfb.h	5918	0644	edit dl rm
oom.h	511	0644	edit dl rm
openat2.h	1289	0644	edit dl rm
openvswitch.h	40184	0644	edit dl rm
packet_diag.h	1672	0644	edit dl rm
param.h	141	0644	edit dl rm
parport.h	3644	0644	edit dl rm
patchkey.h	892	0644	edit dl rm
pci.h	1380	0644	edit dl rm
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pci_regs.h	57827	0644	edit dl rm
perf_event.h	40580	0644	edit dl rm
personality.h	2097	0644	edit dl rm
pfkeyv2.h	10569	0644	edit dl rm
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pg.h	2394	0644	edit dl rm
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phonet.h	4677	0644	edit dl rm
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pkt_sched.h	30296	0644	edit dl rm
pmu.h	5319	0644	edit dl rm
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string.h	238	0644	edit dl rm
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switchtec_ioctl.h	5262	0644	edit dl rm
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sync_file.h	2883	0644	edit dl rm
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sysinfo.h	1049	0644	edit dl rm
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taskstats.h	7180	0644	edit dl rm
tcp.h	9920	0644	edit dl rm
tcp_metrics.h	1549	0644	edit dl rm
tdx-guest.h	1305	0644	edit dl rm
tee.h	13165	0644	edit dl rm
termios.h	506	0644	edit dl rm
thermal.h	3309	0644	edit dl rm
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un.h	384	0644	edit dl rm
unistd.h	220	0644	edit dl rm
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Edit: /usr/include/linux/vfio.h (52223B)

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * VFIO API definition
 *
 * Copyright (C) 2012 Red Hat, Inc.  All rights reserved.
 *     Author: Alex Williamson <alex.williamson@redhat.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#ifndef VFIO_H
#define VFIO_H

#include <linux/types.h>
#include <linux/ioctl.h>

#define VFIO_API_VERSION	0

/* Kernel & User level defines for VFIO IOCTLs. */

/* Extensions */

#define VFIO_TYPE1_IOMMU		1
#define VFIO_SPAPR_TCE_IOMMU		2
#define VFIO_TYPE1v2_IOMMU		3
/*
 * IOMMU enforces DMA cache coherence (ex. PCIe NoSnoop stripping).  This
 * capability is subject to change as groups are added or removed.
 */
#define VFIO_DMA_CC_IOMMU		4

/* Check if EEH is supported */
#define VFIO_EEH			5

/* Two-stage IOMMU */
#define VFIO_TYPE1_NESTING_IOMMU	6	/* Implies v2 */

#define VFIO_SPAPR_TCE_v2_IOMMU		7

/*
 * The No-IOMMU IOMMU offers no translation or isolation for devices and
 * supports no ioctls outside of VFIO_CHECK_EXTENSION.  Use of VFIO's No-IOMMU
 * code will taint the host kernel and should be used with extreme caution.
 */
#define VFIO_NOIOMMU_IOMMU		8

/*
 * The IOCTL interface is designed for extensibility by embedding the
 * structure length (argsz) and flags into structures passed between
 * kernel and userspace.  We therefore use the _IO() macro for these
 * defines to avoid implicitly embedding a size into the ioctl request.
 * As structure fields are added, argsz will increase to match and flag
 * bits will be defined to indicate additional fields with valid data.
 * It's *always* the caller's responsibility to indicate the size of
 * the structure passed by setting argsz appropriately.
 */

#define VFIO_TYPE	(';')
#define VFIO_BASE	100

/*
 * For extension of INFO ioctls, VFIO makes use of a capability chain
 * designed after PCI/e capabilities.  A flag bit indicates whether
 * this capability chain is supported and a field defined in the fixed
 * structure defines the offset of the first capability in the chain.
 * This field is only valid when the corresponding bit in the flags
 * bitmap is set.  This offset field is relative to the start of the
 * INFO buffer, as is the next field within each capability header.
 * The id within the header is a shared address space per INFO ioctl,
 * while the version field is specific to the capability id.  The
 * contents following the header are specific to the capability id.
 */
struct vfio_info_cap_header {
	__u16	id;		/* Identifies capability */
	__u16	version;	/* Version specific to the capability ID */
	__u32	next;		/* Offset of next capability */
};

/*
 * Callers of INFO ioctls passing insufficiently sized buffers will see
 * the capability chain flag bit set, a zero value for the first capability
 * offset (if available within the provided argsz), and argsz will be
 * updated to report the necessary buffer size.  For compatibility, the
 * INFO ioctl will not report error in this case, but the capability chain
 * will not be available.
 */

/* -------- IOCTLs for VFIO file descriptor (/dev/vfio/vfio) -------- */

/**
 * VFIO_GET_API_VERSION - _IO(VFIO_TYPE, VFIO_BASE + 0)
 *
 * Report the version of the VFIO API.  This allows us to bump the entire
 * API version should we later need to add or change features in incompatible
 * ways.
 * Return: VFIO_API_VERSION
 * Availability: Always
 */
#define VFIO_GET_API_VERSION		_IO(VFIO_TYPE, VFIO_BASE + 0)

/**
 * VFIO_CHECK_EXTENSION - _IOW(VFIO_TYPE, VFIO_BASE + 1, __u32)
 *
 * Check whether an extension is supported.
 * Return: 0 if not supported, 1 (or some other positive integer) if supported.
 * Availability: Always
 */
#define VFIO_CHECK_EXTENSION		_IO(VFIO_TYPE, VFIO_BASE + 1)

/**
 * VFIO_SET_IOMMU - _IOW(VFIO_TYPE, VFIO_BASE + 2, __s32)
 *
 * Set the iommu to the given type.  The type must be supported by an
 * iommu driver as verified by calling CHECK_EXTENSION using the same
 * type.  A group must be set to this file descriptor before this
 * ioctl is available.  The IOMMU interfaces enabled by this call are
 * specific to the value set.
 * Return: 0 on success, -errno on failure
 * Availability: When VFIO group attached
 */
#define VFIO_SET_IOMMU			_IO(VFIO_TYPE, VFIO_BASE + 2)

/* -------- IOCTLs for GROUP file descriptors (/dev/vfio/$GROUP) -------- */

/**
 * VFIO_GROUP_GET_STATUS - _IOR(VFIO_TYPE, VFIO_BASE + 3,
 *						struct vfio_group_status)
 *
 * Retrieve information about the group.  Fills in provided
 * struct vfio_group_info.  Caller sets argsz.
 * Return: 0 on succes, -errno on failure.
 * Availability: Always
 */
struct vfio_group_status {
	__u32	argsz;
	__u32	flags;
#define VFIO_GROUP_FLAGS_VIABLE		(1 << 0)
#define VFIO_GROUP_FLAGS_CONTAINER_SET	(1 << 1)
};
#define VFIO_GROUP_GET_STATUS		_IO(VFIO_TYPE, VFIO_BASE + 3)

/**
 * VFIO_GROUP_SET_CONTAINER - _IOW(VFIO_TYPE, VFIO_BASE + 4, __s32)
 *
 * Set the container for the VFIO group to the open VFIO file
 * descriptor provided.  Groups may only belong to a single
 * container.  Containers may, at their discretion, support multiple
 * groups.  Only when a container is set are all of the interfaces
 * of the VFIO file descriptor and the VFIO group file descriptor
 * available to the user.
 * Return: 0 on success, -errno on failure.
 * Availability: Always
 */
#define VFIO_GROUP_SET_CONTAINER	_IO(VFIO_TYPE, VFIO_BASE + 4)

/**
 * VFIO_GROUP_UNSET_CONTAINER - _IO(VFIO_TYPE, VFIO_BASE + 5)
 *
 * Remove the group from the attached container.  This is the
 * opposite of the SET_CONTAINER call and returns the group to
 * an initial state.  All device file descriptors must be released
 * prior to calling this interface.  When removing the last group
 * from a container, the IOMMU will be disabled and all state lost,
 * effectively also returning the VFIO file descriptor to an initial
 * state.
 * Return: 0 on success, -errno on failure.
 * Availability: When attached to container
 */
#define VFIO_GROUP_UNSET_CONTAINER	_IO(VFIO_TYPE, VFIO_BASE + 5)

/**
 * VFIO_GROUP_GET_DEVICE_FD - _IOW(VFIO_TYPE, VFIO_BASE + 6, char)
 *
 * Return a new file descriptor for the device object described by
 * the provided string.  The string should match a device listed in
 * the devices subdirectory of the IOMMU group sysfs entry.  The
 * group containing the device must already be added to this context.
 * Return: new file descriptor on success, -errno on failure.
 * Availability: When attached to container
 */
#define VFIO_GROUP_GET_DEVICE_FD	_IO(VFIO_TYPE, VFIO_BASE + 6)

/* --------------- IOCTLs for DEVICE file descriptors --------------- */

/**
 * VFIO_DEVICE_GET_INFO - _IOR(VFIO_TYPE, VFIO_BASE + 7,
 *						struct vfio_device_info)
 *
 * Retrieve information about the device.  Fills in provided
 * struct vfio_device_info.  Caller sets argsz.
 * Return: 0 on success, -errno on failure.
 */
struct vfio_device_info {
	__u32	argsz;
	__u32	flags;
#define VFIO_DEVICE_FLAGS_RESET	(1 << 0)	/* Device supports reset */
#define VFIO_DEVICE_FLAGS_PCI	(1 << 1)	/* vfio-pci device */
#define VFIO_DEVICE_FLAGS_PLATFORM (1 << 2)	/* vfio-platform device */
#define VFIO_DEVICE_FLAGS_AMBA  (1 << 3)	/* vfio-amba device */
#define VFIO_DEVICE_FLAGS_CCW	(1 << 4)	/* vfio-ccw device */
#define VFIO_DEVICE_FLAGS_AP	(1 << 5)	/* vfio-ap device */
#define VFIO_DEVICE_FLAGS_CAPS	(1 << 7)	/* Info supports caps */
	__u32	num_regions;	/* Max region index + 1 */
	__u32	num_irqs;	/* Max IRQ index + 1 */
	__u32   cap_offset;	/* Offset within info struct of first cap */
};
#define VFIO_DEVICE_GET_INFO		_IO(VFIO_TYPE, VFIO_BASE + 7)

/*
 * Vendor driver using Mediated device framework should provide device_api
 * attribute in supported type attribute groups. Device API string should be one
 * of the following corresponding to device flags in vfio_device_info structure.
 */

#define VFIO_DEVICE_API_PCI_STRING		"vfio-pci"
#define VFIO_DEVICE_API_PLATFORM_STRING		"vfio-platform"
#define VFIO_DEVICE_API_AMBA_STRING		"vfio-amba"
#define VFIO_DEVICE_API_CCW_STRING		"vfio-ccw"
#define VFIO_DEVICE_API_AP_STRING		"vfio-ap"

/*
 * The following capabilities are unique to s390 zPCI devices.  Their contents
 * are further-defined in vfio_zdev.h
 */
#define VFIO_DEVICE_INFO_CAP_ZPCI_BASE		1
#define VFIO_DEVICE_INFO_CAP_ZPCI_GROUP		2
#define VFIO_DEVICE_INFO_CAP_ZPCI_UTIL		3
#define VFIO_DEVICE_INFO_CAP_ZPCI_PFIP		4

/**
 * VFIO_DEVICE_GET_REGION_INFO - _IOWR(VFIO_TYPE, VFIO_BASE + 8,
 *				       struct vfio_region_info)
 *
 * Retrieve information about a device region.  Caller provides
 * struct vfio_region_info with index value set.  Caller sets argsz.
 * Implementation of region mapping is bus driver specific.  This is
 * intended to describe MMIO, I/O port, as well as bus specific
 * regions (ex. PCI config space).  Zero sized regions may be used
 * to describe unimplemented regions (ex. unimplemented PCI BARs).
 * Return: 0 on success, -errno on failure.
 */
struct vfio_region_info {
	__u32	argsz;
	__u32	flags;
#define VFIO_REGION_INFO_FLAG_READ	(1 << 0) /* Region supports read */
#define VFIO_REGION_INFO_FLAG_WRITE	(1 << 1) /* Region supports write */
#define VFIO_REGION_INFO_FLAG_MMAP	(1 << 2) /* Region supports mmap */
#define VFIO_REGION_INFO_FLAG_CAPS	(1 << 3) /* Info supports caps */
	__u32	index;		/* Region index */
	__u32	cap_offset;	/* Offset within info struct of first cap */
	__u64	size;		/* Region size (bytes) */
	__u64	offset;		/* Region offset from start of device fd */
};
#define VFIO_DEVICE_GET_REGION_INFO	_IO(VFIO_TYPE, VFIO_BASE + 8)

/*
 * The sparse mmap capability allows finer granularity of specifying areas
 * within a region with mmap support.  When specified, the user should only
 * mmap the offset ranges specified by the areas array.  mmaps outside of the
 * areas specified may fail (such as the range covering a PCI MSI-X table) or
 * may result in improper device behavior.
 *
 * The structures below define version 1 of this capability.
 */
#define VFIO_REGION_INFO_CAP_SPARSE_MMAP	1

struct vfio_region_sparse_mmap_area {
	__u64	offset;	/* Offset of mmap'able area within region */
	__u64	size;	/* Size of mmap'able area */
};

struct vfio_region_info_cap_sparse_mmap {
	struct vfio_info_cap_header header;
	__u32	nr_areas;
	__u32	reserved;
	struct vfio_region_sparse_mmap_area areas[];
};

/*
 * The device specific type capability allows regions unique to a specific
 * device or class of devices to be exposed.  This helps solve the problem for
 * vfio bus drivers of defining which region indexes correspond to which region
 * on the device, without needing to resort to static indexes, as done by
 * vfio-pci.  For instance, if we were to go back in time, we might remove
 * VFIO_PCI_VGA_REGION_INDEX and let vfio-pci simply define that all indexes
 * greater than or equal to VFIO_PCI_NUM_REGIONS are device specific and we'd
 * make a "VGA" device specific type to describe the VGA access space.  This
 * means that non-VGA devices wouldn't need to waste this index, and thus the
 * address space associated with it due to implementation of device file
 * descriptor offsets in vfio-pci.
 *
 * The current implementation is now part of the user ABI, so we can't use this
 * for VGA, but there are other upcoming use cases, such as opregions for Intel
 * IGD devices and framebuffers for vGPU devices.  We missed VGA, but we'll
 * use this for future additions.
 *
 * The structure below defines version 1 of this capability.
 */
#define VFIO_REGION_INFO_CAP_TYPE	2

struct vfio_region_info_cap_type {
	struct vfio_info_cap_header header;
	__u32 type;	/* global per bus driver */
	__u32 subtype;	/* type specific */
};

/*
 * List of region types, global per bus driver.
 * If you introduce a new type, please add it here.
 */

/* PCI region type containing a PCI vendor part */
#define VFIO_REGION_TYPE_PCI_VENDOR_TYPE	(1 << 31)
#define VFIO_REGION_TYPE_PCI_VENDOR_MASK	(0xffff)
#define VFIO_REGION_TYPE_GFX                    (1)
#define VFIO_REGION_TYPE_CCW			(2)
#define VFIO_REGION_TYPE_MIGRATION              (3)

/* sub-types for VFIO_REGION_TYPE_PCI_* */

/* 8086 vendor PCI sub-types */
#define VFIO_REGION_SUBTYPE_INTEL_IGD_OPREGION	(1)
#define VFIO_REGION_SUBTYPE_INTEL_IGD_HOST_CFG	(2)
#define VFIO_REGION_SUBTYPE_INTEL_IGD_LPC_CFG	(3)

/* 10de vendor PCI sub-types */
/*
 * NVIDIA GPU NVlink2 RAM is coherent RAM mapped onto the host address space.
 */
#define VFIO_REGION_SUBTYPE_NVIDIA_NVLINK2_RAM	(1)

/* 1014 vendor PCI sub-types */
/*
 * IBM NPU NVlink2 ATSD (Address Translation Shootdown) register of NPU
 * to do TLB invalidation on a GPU.
 */
#define VFIO_REGION_SUBTYPE_IBM_NVLINK2_ATSD	(1)

/* sub-types for VFIO_REGION_TYPE_GFX */
#define VFIO_REGION_SUBTYPE_GFX_EDID            (1)

/**
 * struct vfio_region_gfx_edid - EDID region layout.
 *
 * Set display link state and EDID blob.
 *
 * The EDID blob has monitor information such as brand, name, serial
 * number, physical size, supported video modes and more.
 *
 * This special region allows userspace (typically qemu) set a virtual
 * EDID for the virtual monitor, which allows a flexible display
 * configuration.
 *
 * For the edid blob spec look here:
 *    https://en.wikipedia.org/wiki/Extended_Display_Identification_Data
 *
 * On linux systems you can find the EDID blob in sysfs:
 *    /sys/class/drm/${card}/${connector}/edid
 *
 * You can use the edid-decode ulility (comes with xorg-x11-utils) to
 * decode the EDID blob.
 *
 * @edid_offset: location of the edid blob, relative to the
 *               start of the region (readonly).
 * @edid_max_size: max size of the edid blob (readonly).
 * @edid_size: actual edid size (read/write).
 * @link_state: display link state (read/write).
 * VFIO_DEVICE_GFX_LINK_STATE_UP: Monitor is turned on.
 * VFIO_DEVICE_GFX_LINK_STATE_DOWN: Monitor is turned off.
 * @max_xres: max display width (0 == no limitation, readonly).
 * @max_yres: max display height (0 == no limitation, readonly).
 *
 * EDID update protocol:
 *   (1) set link-state to down.
 *   (2) update edid blob and size.
 *   (3) set link-state to up.
 */
struct vfio_region_gfx_edid {
	__u32 edid_offset;
	__u32 edid_max_size;
	__u32 edid_size;
	__u32 max_xres;
	__u32 max_yres;
	__u32 link_state;
#define VFIO_DEVICE_GFX_LINK_STATE_UP    1
#define VFIO_DEVICE_GFX_LINK_STATE_DOWN  2
};

/* sub-types for VFIO_REGION_TYPE_CCW */
#define VFIO_REGION_SUBTYPE_CCW_ASYNC_CMD	(1)
#define VFIO_REGION_SUBTYPE_CCW_SCHIB		(2)
#define VFIO_REGION_SUBTYPE_CCW_CRW		(3)

/* sub-types for VFIO_REGION_TYPE_MIGRATION */
#define VFIO_REGION_SUBTYPE_MIGRATION           (1)

/*
 * The structure vfio_device_migration_info is placed at the 0th offset of
 * the VFIO_REGION_SUBTYPE_MIGRATION region to get and set VFIO device related
 * migration information. Field accesses from this structure are only supported
 * at their native width and alignment. Otherwise, the result is undefined and
 * vendor drivers should return an error.
 *
 * device_state: (read/write)
 *      - The user application writes to this field to inform the vendor driver
 *        about the device state to be transitioned to.
 *      - The vendor driver should take the necessary actions to change the
 *        device state. After successful transition to a given state, the
 *        vendor driver should return success on write(device_state, state)
 *        system call. If the device state transition fails, the vendor driver
 *        should return an appropriate -errno for the fault condition.
 *      - On the user application side, if the device state transition fails,
 *	  that is, if write(device_state, state) returns an error, read
 *	  device_state again to determine the current state of the device from
 *	  the vendor driver.
 *      - The vendor driver should return previous state of the device unless
 *        the vendor driver has encountered an internal error, in which case
 *        the vendor driver may report the device_state VFIO_DEVICE_STATE_ERROR.
 *      - The user application must use the device reset ioctl to recover the
 *        device from VFIO_DEVICE_STATE_ERROR state. If the device is
 *        indicated to be in a valid device state by reading device_state, the
 *        user application may attempt to transition the device to any valid
 *        state reachable from the current state or terminate itself.
 *
 *      device_state consists of 3 bits:
 *      - If bit 0 is set, it indicates the _RUNNING state. If bit 0 is clear,
 *        it indicates the _STOP state. When the device state is changed to
 *        _STOP, driver should stop the device before write() returns.
 *      - If bit 1 is set, it indicates the _SAVING state, which means that the
 *        driver should start gathering device state information that will be
 *        provided to the VFIO user application to save the device's state.
 *      - If bit 2 is set, it indicates the _RESUMING state, which means that
 *        the driver should prepare to resume the device. Data provided through
 *        the migration region should be used to resume the device.
 *      Bits 3 - 31 are reserved for future use. To preserve them, the user
 *      application should perform a read-modify-write operation on this
 *      field when modifying the specified bits.
 *
 *  +------- _RESUMING
 *  |+------ _SAVING
 *  ||+----- _RUNNING
 *  |||
 *  000b => Device Stopped, not saving or resuming
 *  001b => Device running, which is the default state
 *  010b => Stop the device & save the device state, stop-and-copy state
 *  011b => Device running and save the device state, pre-copy state
 *  100b => Device stopped and the device state is resuming
 *  101b => Invalid state
 *  110b => Error state
 *  111b => Invalid state
 *
 * State transitions:
 *
 *              _RESUMING  _RUNNING    Pre-copy    Stop-and-copy   _STOP
 *                (100b)     (001b)     (011b)        (010b)       (000b)
 * 0. Running or default state
 *                             |
 *
 * 1. Normal Shutdown (optional)
 *                             |------------------------------------->|
 *
 * 2. Save the state or suspend
 *                             |------------------------->|---------->|
 *
 * 3. Save the state during live migration
 *                             |----------->|------------>|---------->|
 *
 * 4. Resuming
 *                  |<---------|
 *
 * 5. Resumed
 *                  |--------->|
 *
 * 0. Default state of VFIO device is _RUNNING when the user application starts.
 * 1. During normal shutdown of the user application, the user application may
 *    optionally change the VFIO device state from _RUNNING to _STOP. This
 *    transition is optional. The vendor driver must support this transition but
 *    must not require it.
 * 2. When the user application saves state or suspends the application, the
 *    device state transitions from _RUNNING to stop-and-copy and then to _STOP.
 *    On state transition from _RUNNING to stop-and-copy, driver must stop the
 *    device, save the device state and send it to the application through the
 *    migration region. The sequence to be followed for such transition is given
 *    below.
 * 3. In live migration of user application, the state transitions from _RUNNING
 *    to pre-copy, to stop-and-copy, and to _STOP.
 *    On state transition from _RUNNING to pre-copy, the driver should start
 *    gathering the device state while the application is still running and send
 *    the device state data to application through the migration region.
 *    On state transition from pre-copy to stop-and-copy, the driver must stop
 *    the device, save the device state and send it to the user application
 *    through the migration region.
 *    Vendor drivers must support the pre-copy state even for implementations
 *    where no data is provided to the user before the stop-and-copy state. The
 *    user must not be required to consume all migration data before the device
 *    transitions to a new state, including the stop-and-copy state.
 *    The sequence to be followed for above two transitions is given below.
 * 4. To start the resuming phase, the device state should be transitioned from
 *    the _RUNNING to the _RESUMING state.
 *    In the _RESUMING state, the driver should use the device state data
 *    received through the migration region to resume the device.
 * 5. After providing saved device data to the driver, the application should
 *    change the state from _RESUMING to _RUNNING.
 *
 * reserved:
 *      Reads on this field return zero and writes are ignored.
 *
 * pending_bytes: (read only)
 *      The number of pending bytes still to be migrated from the vendor driver.
 *
 * data_offset: (read only)
 *      The user application should read data_offset field from the migration
 *      region. The user application should read the device data from this
 *      offset within the migration region during the _SAVING state or write
 *      the device data during the _RESUMING state. See below for details of
 *      sequence to be followed.
 *
 * data_size: (read/write)
 *      The user application should read data_size to get the size in bytes of
 *      the data copied in the migration region during the _SAVING state and
 *      write the size in bytes of the data copied in the migration region
 *      during the _RESUMING state.
 *
 * The format of the migration region is as follows:
 *  ------------------------------------------------------------------
 * |vfio_device_migration_info|    data section                      |
 * |                          |     ///////////////////////////////  |
 * ------------------------------------------------------------------
 *   ^                              ^
 *  offset 0-trapped part        data_offset
 *
 * The structure vfio_device_migration_info is always followed by the data
 * section in the region, so data_offset will always be nonzero. The offset
 * from where the data is copied is decided by the kernel driver. The data
 * section can be trapped, mmapped, or partitioned, depending on how the kernel
 * driver defines the data section. The data section partition can be defined
 * as mapped by the sparse mmap capability. If mmapped, data_offset must be
 * page aligned, whereas initial section which contains the
 * vfio_device_migration_info structure, might not end at the offset, which is
 * page aligned. The user is not required to access through mmap regardless
 * of the capabilities of the region mmap.
 * The vendor driver should determine whether and how to partition the data
 * section. The vendor driver should return data_offset accordingly.
 *
 * The sequence to be followed while in pre-copy state and stop-and-copy state
 * is as follows:
 * a. Read pending_bytes, indicating the start of a new iteration to get device
 *    data. Repeated read on pending_bytes at this stage should have no side
 *    effects.
 *    If pending_bytes == 0, the user application should not iterate to get data
 *    for that device.
 *    If pending_bytes > 0, perform the following steps.
 * b. Read data_offset, indicating that the vendor driver should make data
 *    available through the data section. The vendor driver should return this
 *    read operation only after data is available from (region + data_offset)
 *    to (region + data_offset + data_size).
 * c. Read data_size, which is the amount of data in bytes available through
 *    the migration region.
 *    Read on data_offset and data_size should return the offset and size of
 *    the current buffer if the user application reads data_offset and
 *    data_size more than once here.
 * d. Read data_size bytes of data from (region + data_offset) from the
 *    migration region.
 * e. Process the data.
 * f. Read pending_bytes, which indicates that the data from the previous
 *    iteration has been read. If pending_bytes > 0, go to step b.
 *
 * The user application can transition from the _SAVING|_RUNNING
 * (pre-copy state) to the _SAVING (stop-and-copy) state regardless of the
 * number of pending bytes. The user application should iterate in _SAVING
 * (stop-and-copy) until pending_bytes is 0.
 *
 * The sequence to be followed while _RESUMING device state is as follows:
 * While data for this device is available, repeat the following steps:
 * a. Read data_offset from where the user application should write data.
 * b. Write migration data starting at the migration region + data_offset for
 *    the length determined by data_size from the migration source.
 * c. Write data_size, which indicates to the vendor driver that data is
 *    written in the migration region. Vendor driver must return this write
 *    operations on consuming data. Vendor driver should apply the
 *    user-provided migration region data to the device resume state.
 *
 * If an error occurs during the above sequences, the vendor driver can return
 * an error code for next read() or write() operation, which will terminate the
 * loop. The user application should then take the next necessary action, for
 * example, failing migration or terminating the user application.
 *
 * For the user application, data is opaque. The user application should write
 * data in the same order as the data is received and the data should be of
 * same transaction size at the source.
 */

struct vfio_device_migration_info {
	__u32 device_state;         /* VFIO device state */
#define VFIO_DEVICE_STATE_STOP      (0)
#define VFIO_DEVICE_STATE_RUNNING   (1 << 0)
#define VFIO_DEVICE_STATE_SAVING    (1 << 1)
#define VFIO_DEVICE_STATE_RESUMING  (1 << 2)
#define VFIO_DEVICE_STATE_MASK      (VFIO_DEVICE_STATE_RUNNING | \
				     VFIO_DEVICE_STATE_SAVING |  \
				     VFIO_DEVICE_STATE_RESUMING)

#define VFIO_DEVICE_STATE_VALID(state) \
	(state & VFIO_DEVICE_STATE_RESUMING ? \
	(state & VFIO_DEVICE_STATE_MASK) == VFIO_DEVICE_STATE_RESUMING : 1)

#define VFIO_DEVICE_STATE_IS_ERROR(state) \
	((state & VFIO_DEVICE_STATE_MASK) == (VFIO_DEVICE_STATE_SAVING | \
					      VFIO_DEVICE_STATE_RESUMING))

#define VFIO_DEVICE_STATE_SET_ERROR(state) \
	((state & ~VFIO_DEVICE_STATE_MASK) | VFIO_DEVICE_SATE_SAVING | \
					     VFIO_DEVICE_STATE_RESUMING)

__u32 reserved;
	__u64 pending_bytes;
	__u64 data_offset;
	__u64 data_size;
};

/*
 * The MSIX mappable capability informs that MSIX data of a BAR can be mmapped
 * which allows direct access to non-MSIX registers which happened to be within
 * the same system page.
 *
 * Even though the userspace gets direct access to the MSIX data, the existing
 * VFIO_DEVICE_SET_IRQS interface must still be used for MSIX configuration.
 */
#define VFIO_REGION_INFO_CAP_MSIX_MAPPABLE	3

/*
 * Capability with compressed real address (aka SSA - small system address)
 * where GPU RAM is mapped on a system bus. Used by a GPU for DMA routing
 * and by the userspace to associate a NVLink bridge with a GPU.
 */
#define VFIO_REGION_INFO_CAP_NVLINK2_SSATGT	4

struct vfio_region_info_cap_nvlink2_ssatgt {
	struct vfio_info_cap_header header;
	__u64 tgt;
};

/*
 * Capability with an NVLink link speed. The value is read by
 * the NVlink2 bridge driver from the bridge's "ibm,nvlink-speed"
 * property in the device tree. The value is fixed in the hardware
 * and failing to provide the correct value results in the link
 * not working with no indication from the driver why.
 */
#define VFIO_REGION_INFO_CAP_NVLINK2_LNKSPD	5

struct vfio_region_info_cap_nvlink2_lnkspd {
	struct vfio_info_cap_header header;
	__u32 link_speed;
	__u32 __pad;
};

/**
 * VFIO_DEVICE_GET_IRQ_INFO - _IOWR(VFIO_TYPE, VFIO_BASE + 9,
 *				    struct vfio_irq_info)
 *
 * Retrieve information about a device IRQ.  Caller provides
 * struct vfio_irq_info with index value set.  Caller sets argsz.
 * Implementation of IRQ mapping is bus driver specific.  Indexes
 * using multiple IRQs are primarily intended to support MSI-like
 * interrupt blocks.  Zero count irq blocks may be used to describe
 * unimplemented interrupt types.
 *
 * The EVENTFD flag indicates the interrupt index supports eventfd based
 * signaling.
 *
 * The MASKABLE flags indicates the index supports MASK and UNMASK
 * actions described below.
 *
 * AUTOMASKED indicates that after signaling, the interrupt line is
 * automatically masked by VFIO and the user needs to unmask the line
 * to receive new interrupts.  This is primarily intended to distinguish
 * level triggered interrupts.
 *
 * The NORESIZE flag indicates that the interrupt lines within the index
 * are setup as a set and new subindexes cannot be enabled without first
 * disabling the entire index.  This is used for interrupts like PCI MSI
 * and MSI-X where the driver may only use a subset of the available
 * indexes, but VFIO needs to enable a specific number of vectors
 * upfront.  In the case of MSI-X, where the user can enable MSI-X and
 * then add and unmask vectors, it's up to userspace to make the decision
 * whether to allocate the maximum supported number of vectors or tear
 * down setup and incrementally increase the vectors as each is enabled.
 */
struct vfio_irq_info {
	__u32	argsz;
	__u32	flags;
#define VFIO_IRQ_INFO_EVENTFD		(1 << 0)
#define VFIO_IRQ_INFO_MASKABLE		(1 << 1)
#define VFIO_IRQ_INFO_AUTOMASKED	(1 << 2)
#define VFIO_IRQ_INFO_NORESIZE		(1 << 3)
	__u32	index;		/* IRQ index */
	__u32	count;		/* Number of IRQs within this index */
};
#define VFIO_DEVICE_GET_IRQ_INFO	_IO(VFIO_TYPE, VFIO_BASE + 9)

/**
 * VFIO_DEVICE_SET_IRQS - _IOW(VFIO_TYPE, VFIO_BASE + 10, struct vfio_irq_set)
 *
 * Set signaling, masking, and unmasking of interrupts.  Caller provides
 * struct vfio_irq_set with all fields set.  'start' and 'count' indicate
 * the range of subindexes being specified.
 *
 * The DATA flags specify the type of data provided.  If DATA_NONE, the
 * operation performs the specified action immediately on the specified
 * interrupt(s).  For example, to unmask AUTOMASKED interrupt [0,0]:
 * flags = (DATA_NONE|ACTION_UNMASK), index = 0, start = 0, count = 1.
 *
 * DATA_BOOL allows sparse support for the same on arrays of interrupts.
 * For example, to mask interrupts [0,1] and [0,3] (but not [0,2]):
 * flags = (DATA_BOOL|ACTION_MASK), index = 0, start = 1, count = 3,
 * data = {1,0,1}
 *
 * DATA_EVENTFD binds the specified ACTION to the provided __s32 eventfd.
 * A value of -1 can be used to either de-assign interrupts if already
 * assigned or skip un-assigned interrupts.  For example, to set an eventfd
 * to be trigger for interrupts [0,0] and [0,2]:
 * flags = (DATA_EVENTFD|ACTION_TRIGGER), index = 0, start = 0, count = 3,
 * data = {fd1, -1, fd2}
 * If index [0,1] is previously set, two count = 1 ioctls calls would be
 * required to set [0,0] and [0,2] without changing [0,1].
 *
 * Once a signaling mechanism is set, DATA_BOOL or DATA_NONE can be used
 * with ACTION_TRIGGER to perform kernel level interrupt loopback testing
 * from userspace (ie. simulate hardware triggering).
 *
 * Setting of an event triggering mechanism to userspace for ACTION_TRIGGER
 * enables the interrupt index for the device.  Individual subindex interrupts
 * can be disabled using the -1 value for DATA_EVENTFD or the index can be
 * disabled as a whole with: flags = (DATA_NONE|ACTION_TRIGGER), count = 0.
 *
 * Note that ACTION_[UN]MASK specify user->kernel signaling (irqfds) while
 * ACTION_TRIGGER specifies kernel->user signaling.
 */
struct vfio_irq_set {
	__u32	argsz;
	__u32	flags;
#define VFIO_IRQ_SET_DATA_NONE		(1 << 0) /* Data not present */
#define VFIO_IRQ_SET_DATA_BOOL		(1 << 1) /* Data is bool (u8) */
#define VFIO_IRQ_SET_DATA_EVENTFD	(1 << 2) /* Data is eventfd (s32) */
#define VFIO_IRQ_SET_ACTION_MASK	(1 << 3) /* Mask interrupt */
#define VFIO_IRQ_SET_ACTION_UNMASK	(1 << 4) /* Unmask interrupt */
#define VFIO_IRQ_SET_ACTION_TRIGGER	(1 << 5) /* Trigger interrupt */
	__u32	index;
	__u32	start;
	__u32	count;
	__u8	data[];
};
#define VFIO_DEVICE_SET_IRQS		_IO(VFIO_TYPE, VFIO_BASE + 10)

#define VFIO_IRQ_SET_DATA_TYPE_MASK	(VFIO_IRQ_SET_DATA_NONE | \
					 VFIO_IRQ_SET_DATA_BOOL | \
					 VFIO_IRQ_SET_DATA_EVENTFD)
#define VFIO_IRQ_SET_ACTION_TYPE_MASK	(VFIO_IRQ_SET_ACTION_MASK | \
					 VFIO_IRQ_SET_ACTION_UNMASK | \
					 VFIO_IRQ_SET_ACTION_TRIGGER)
/**
 * VFIO_DEVICE_RESET - _IO(VFIO_TYPE, VFIO_BASE + 11)
 *
 * Reset a device.
 */
#define VFIO_DEVICE_RESET		_IO(VFIO_TYPE, VFIO_BASE + 11)

/*
 * The VFIO-PCI bus driver makes use of the following fixed region and
 * IRQ index mapping.  Unimplemented regions return a size of zero.
 * Unimplemented IRQ types return a count of zero.
 */

enum {
	VFIO_PCI_BAR0_REGION_INDEX,
	VFIO_PCI_BAR1_REGION_INDEX,
	VFIO_PCI_BAR2_REGION_INDEX,
	VFIO_PCI_BAR3_REGION_INDEX,
	VFIO_PCI_BAR4_REGION_INDEX,
	VFIO_PCI_BAR5_REGION_INDEX,
	VFIO_PCI_ROM_REGION_INDEX,
	VFIO_PCI_CONFIG_REGION_INDEX,
	/*
	 * Expose VGA regions defined for PCI base class 03, subclass 00.
	 * This includes I/O port ranges 0x3b0 to 0x3bb and 0x3c0 to 0x3df
	 * as well as the MMIO range 0xa0000 to 0xbffff.  Each implemented
	 * range is found at it's identity mapped offset from the region
	 * offset, for example 0x3b0 is region_info.offset + 0x3b0.  Areas
	 * between described ranges are unimplemented.
	 */
	VFIO_PCI_VGA_REGION_INDEX,
	VFIO_PCI_NUM_REGIONS = 9 /* Fixed user ABI, region indexes >=9 use */
				 /* device specific cap to define content. */
};

enum {
	VFIO_PCI_INTX_IRQ_INDEX,
	VFIO_PCI_MSI_IRQ_INDEX,
	VFIO_PCI_MSIX_IRQ_INDEX,
	VFIO_PCI_ERR_IRQ_INDEX,
	VFIO_PCI_REQ_IRQ_INDEX,
	VFIO_PCI_NUM_IRQS
};

/*
 * The vfio-ccw bus driver makes use of the following fixed region and
 * IRQ index mapping. Unimplemented regions return a size of zero.
 * Unimplemented IRQ types return a count of zero.
 */

enum {
	VFIO_CCW_CONFIG_REGION_INDEX,
	VFIO_CCW_NUM_REGIONS
};

enum {
	VFIO_CCW_IO_IRQ_INDEX,
	VFIO_CCW_CRW_IRQ_INDEX,
	VFIO_CCW_REQ_IRQ_INDEX,
	VFIO_CCW_NUM_IRQS
};

/**
 * VFIO_DEVICE_GET_PCI_HOT_RESET_INFO - _IORW(VFIO_TYPE, VFIO_BASE + 12,
 *					      struct vfio_pci_hot_reset_info)
 *
 * Return: 0 on success, -errno on failure:
 *	-enospc = insufficient buffer, -enodev = unsupported for device.
 */
struct vfio_pci_dependent_device {
	__u32	group_id;
	__u16	segment;
	__u8	bus;
	__u8	devfn; /* Use PCI_SLOT/PCI_FUNC */
};

struct vfio_pci_hot_reset_info {
	__u32	argsz;
	__u32	flags;
	__u32	count;
	struct vfio_pci_dependent_device	devices[];
};

#define VFIO_DEVICE_GET_PCI_HOT_RESET_INFO	_IO(VFIO_TYPE, VFIO_BASE + 12)

/**
 * VFIO_DEVICE_PCI_HOT_RESET - _IOW(VFIO_TYPE, VFIO_BASE + 13,
 *				    struct vfio_pci_hot_reset)
 *
 * Return: 0 on success, -errno on failure.
 */
struct vfio_pci_hot_reset {
	__u32	argsz;
	__u32	flags;
	__u32	count;
	__s32	group_fds[];
};

#define VFIO_DEVICE_PCI_HOT_RESET	_IO(VFIO_TYPE, VFIO_BASE + 13)

/**
 * VFIO_DEVICE_QUERY_GFX_PLANE - _IOW(VFIO_TYPE, VFIO_BASE + 14,
 *                                    struct vfio_device_query_gfx_plane)
 *
 * Set the drm_plane_type and flags, then retrieve the gfx plane info.
 *
 * flags supported:
 * - VFIO_GFX_PLANE_TYPE_PROBE and VFIO_GFX_PLANE_TYPE_DMABUF are set
 *   to ask if the mdev supports dma-buf. 0 on support, -EINVAL on no
 *   support for dma-buf.
 * - VFIO_GFX_PLANE_TYPE_PROBE and VFIO_GFX_PLANE_TYPE_REGION are set
 *   to ask if the mdev supports region. 0 on support, -EINVAL on no
 *   support for region.
 * - VFIO_GFX_PLANE_TYPE_DMABUF or VFIO_GFX_PLANE_TYPE_REGION is set
 *   with each call to query the plane info.
 * - Others are invalid and return -EINVAL.
 *
 * Note:
 * 1. Plane could be disabled by guest. In that case, success will be
 *    returned with zero-initialized drm_format, size, width and height
 *    fields.
 * 2. x_hot/y_hot is set to 0xFFFFFFFF if no hotspot information available
 *
 * Return: 0 on success, -errno on other failure.
 */
struct vfio_device_gfx_plane_info {
	__u32 argsz;
	__u32 flags;
#define VFIO_GFX_PLANE_TYPE_PROBE (1 << 0)
#define VFIO_GFX_PLANE_TYPE_DMABUF (1 << 1)
#define VFIO_GFX_PLANE_TYPE_REGION (1 << 2)
	/* in */
	__u32 drm_plane_type;	/* type of plane: DRM_PLANE_TYPE_* */
	/* out */
	__u32 drm_format;	/* drm format of plane */
	__u64 drm_format_mod;   /* tiled mode */
	__u32 width;	/* width of plane */
	__u32 height;	/* height of plane */
	__u32 stride;	/* stride of plane */
	__u32 size;	/* size of plane in bytes, align on page*/
	__u32 x_pos;	/* horizontal position of cursor plane */
	__u32 y_pos;	/* vertical position of cursor plane*/
	__u32 x_hot;    /* horizontal position of cursor hotspot */
	__u32 y_hot;    /* vertical position of cursor hotspot */
	union {
		__u32 region_index;	/* region index */
		__u32 dmabuf_id;	/* dma-buf id */
	};
};

#define VFIO_DEVICE_QUERY_GFX_PLANE _IO(VFIO_TYPE, VFIO_BASE + 14)

/**
 * VFIO_DEVICE_GET_GFX_DMABUF - _IOW(VFIO_TYPE, VFIO_BASE + 15, __u32)
 *
 * Return a new dma-buf file descriptor for an exposed guest framebuffer
 * described by the provided dmabuf_id. The dmabuf_id is returned from VFIO_
 * DEVICE_QUERY_GFX_PLANE as a token of the exposed guest framebuffer.
 */

#define VFIO_DEVICE_GET_GFX_DMABUF _IO(VFIO_TYPE, VFIO_BASE + 15)

/**
 * VFIO_DEVICE_IOEVENTFD - _IOW(VFIO_TYPE, VFIO_BASE + 16,
 *                              struct vfio_device_ioeventfd)
 *
 * Perform a write to the device at the specified device fd offset, with
 * the specified data and width when the provided eventfd is triggered.
 * vfio bus drivers may not support this for all regions, for all widths,
 * or at all.  vfio-pci currently only enables support for BAR regions,
 * excluding the MSI-X vector table.
 *
 * Return: 0 on success, -errno on failure.
 */
struct vfio_device_ioeventfd {
	__u32	argsz;
	__u32	flags;
#define VFIO_DEVICE_IOEVENTFD_8		(1 << 0) /* 1-byte write */
#define VFIO_DEVICE_IOEVENTFD_16	(1 << 1) /* 2-byte write */
#define VFIO_DEVICE_IOEVENTFD_32	(1 << 2) /* 4-byte write */
#define VFIO_DEVICE_IOEVENTFD_64	(1 << 3) /* 8-byte write */
#define VFIO_DEVICE_IOEVENTFD_SIZE_MASK	(0xf)
	__u64	offset;			/* device fd offset of write */
	__u64	data;			/* data to be written */
	__s32	fd;			/* -1 for de-assignment */
};

#define VFIO_DEVICE_IOEVENTFD		_IO(VFIO_TYPE, VFIO_BASE + 16)

/**
 * VFIO_DEVICE_FEATURE - _IORW(VFIO_TYPE, VFIO_BASE + 17,
 *			       struct vfio_device_feature)
 *
 * Get, set, or probe feature data of the device.  The feature is selected
 * using the FEATURE_MASK portion of the flags field.  Support for a feature
 * can be probed by setting both the FEATURE_MASK and PROBE bits.  A probe
 * may optionally include the GET and/or SET bits to determine read vs write
 * access of the feature respectively.  Probing a feature will return success
 * if the feature is supported and all of the optionally indicated GET/SET
 * methods are supported.  The format of the data portion of the structure is
 * specific to the given feature.  The data portion is not required for
 * probing.  GET and SET are mutually exclusive, except for use with PROBE.
 *
 * Return 0 on success, -errno on failure.
 */
struct vfio_device_feature {
	__u32	argsz;
	__u32	flags;
#define VFIO_DEVICE_FEATURE_MASK	(0xffff) /* 16-bit feature index */
#define VFIO_DEVICE_FEATURE_GET		(1 << 16) /* Get feature into data[] */
#define VFIO_DEVICE_FEATURE_SET		(1 << 17) /* Set feature from data[] */
#define VFIO_DEVICE_FEATURE_PROBE	(1 << 18) /* Probe feature support */
	__u8	data[];
};

#define VFIO_DEVICE_FEATURE		_IO(VFIO_TYPE, VFIO_BASE + 17)

/*
 * Provide support for setting a PCI VF Token, which is used as a shared
 * secret between PF and VF drivers.  This feature may only be set on a
 * PCI SR-IOV PF when SR-IOV is enabled on the PF and there are no existing
 * open VFs.  Data provided when setting this feature is a 16-byte array
 * (__u8 b[16]), representing a UUID.
 */
#define VFIO_DEVICE_FEATURE_PCI_VF_TOKEN	(0)

/* -------- API for Type1 VFIO IOMMU -------- */

/**
 * VFIO_IOMMU_GET_INFO - _IOR(VFIO_TYPE, VFIO_BASE + 12, struct vfio_iommu_info)
 *
 * Retrieve information about the IOMMU object. Fills in provided
 * struct vfio_iommu_info. Caller sets argsz.
 *
 * XXX Should we do these by CHECK_EXTENSION too?
 */
struct vfio_iommu_type1_info {
	__u32	argsz;
	__u32	flags;
#define VFIO_IOMMU_INFO_PGSIZES (1 << 0)	/* supported page sizes info */
#define VFIO_IOMMU_INFO_CAPS	(1 << 1)	/* Info supports caps */
	__u64	iova_pgsizes;	/* Bitmap of supported page sizes */
	__u32   cap_offset;	/* Offset within info struct of first cap */
};

/*
 * The IOVA capability allows to report the valid IOVA range(s)
 * excluding any non-relaxable reserved regions exposed by
 * devices attached to the container. Any DMA map attempt
 * outside the valid iova range will return error.
 *
 * The structures below define version 1 of this capability.
 */
#define VFIO_IOMMU_TYPE1_INFO_CAP_IOVA_RANGE  1

struct vfio_iova_range {
	__u64	start;
	__u64	end;
};

struct vfio_iommu_type1_info_cap_iova_range {
	struct	vfio_info_cap_header header;
	__u32	nr_iovas;
	__u32	reserved;
	struct	vfio_iova_range iova_ranges[];
};

/*
 * The migration capability allows to report supported features for migration.
 *
 * The structures below define version 1 of this capability.
 *
 * The existence of this capability indicates that IOMMU kernel driver supports
 * dirty page logging.
 *
 * pgsize_bitmap: Kernel driver returns bitmap of supported page sizes for dirty
 * page logging.
 * max_dirty_bitmap_size: Kernel driver returns maximum supported dirty bitmap
 * size in bytes that can be used by user applications when getting the dirty
 * bitmap.
 */
#define VFIO_IOMMU_TYPE1_INFO_CAP_MIGRATION  2

struct vfio_iommu_type1_info_cap_migration {
	struct	vfio_info_cap_header header;
	__u32	flags;
	__u64	pgsize_bitmap;
	__u64	max_dirty_bitmap_size;		/* in bytes */
};

/*
 * The DMA available capability allows to report the current number of
 * simultaneously outstanding DMA mappings that are allowed.
 *
 * The structure below defines version 1 of this capability.
 *
 * avail: specifies the current number of outstanding DMA mappings allowed.
 */
#define VFIO_IOMMU_TYPE1_INFO_DMA_AVAIL 3

struct vfio_iommu_type1_info_dma_avail {
	struct	vfio_info_cap_header header;
	__u32	avail;
};

#define VFIO_IOMMU_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12)

/**
 * VFIO_IOMMU_MAP_DMA - _IOW(VFIO_TYPE, VFIO_BASE + 13, struct vfio_dma_map)
 *
 * Map process virtual addresses to IO virtual addresses using the
 * provided struct vfio_dma_map. Caller sets argsz. READ &/ WRITE required.
 */
struct vfio_iommu_type1_dma_map {
	__u32	argsz;
	__u32	flags;
#define VFIO_DMA_MAP_FLAG_READ (1 << 0)		/* readable from device */
#define VFIO_DMA_MAP_FLAG_WRITE (1 << 1)	/* writable from device */
	__u64	vaddr;				/* Process virtual address */
	__u64	iova;				/* IO virtual address */
	__u64	size;				/* Size of mapping (bytes) */
};

#define VFIO_IOMMU_MAP_DMA _IO(VFIO_TYPE, VFIO_BASE + 13)

struct vfio_bitmap {
	__u64        pgsize;	/* page size for bitmap in bytes */
	__u64        size;	/* in bytes */
	__u64 *data;	/* one bit per page */
};

/**
 * VFIO_IOMMU_UNMAP_DMA - _IOWR(VFIO_TYPE, VFIO_BASE + 14,
 *							struct vfio_dma_unmap)
 *
 * Unmap IO virtual addresses using the provided struct vfio_dma_unmap.
 * Caller sets argsz.  The actual unmapped size is returned in the size
 * field.  No guarantee is made to the user that arbitrary unmaps of iova
 * or size different from those used in the original mapping call will
 * succeed.
 * VFIO_DMA_UNMAP_FLAG_GET_DIRTY_BITMAP should be set to get the dirty bitmap
 * before unmapping IO virtual addresses. When this flag is set, the user must
 * provide a struct vfio_bitmap in data[]. User must provide zero-allocated
 * memory via vfio_bitmap.data and its size in the vfio_bitmap.size field.
 * A bit in the bitmap represents one page, of user provided page size in
 * vfio_bitmap.pgsize field, consecutively starting from iova offset. Bit set
 * indicates that the page at that offset from iova is dirty. A Bitmap of the
 * pages in the range of unmapped size is returned in the user-provided
 * vfio_bitmap.data.
 */
struct vfio_iommu_type1_dma_unmap {
	__u32	argsz;
	__u32	flags;
#define VFIO_DMA_UNMAP_FLAG_GET_DIRTY_BITMAP (1 << 0)
	__u64	iova;				/* IO virtual address */
	__u64	size;				/* Size of mapping (bytes) */
	__u8    data[];
};

#define VFIO_IOMMU_UNMAP_DMA _IO(VFIO_TYPE, VFIO_BASE + 14)

/*
 * IOCTLs to enable/disable IOMMU container usage.
 * No parameters are supported.
 */
#define VFIO_IOMMU_ENABLE	_IO(VFIO_TYPE, VFIO_BASE + 15)
#define VFIO_IOMMU_DISABLE	_IO(VFIO_TYPE, VFIO_BASE + 16)

/**
 * VFIO_IOMMU_DIRTY_PAGES - _IOWR(VFIO_TYPE, VFIO_BASE + 17,
 *                                     struct vfio_iommu_type1_dirty_bitmap)
 * IOCTL is used for dirty pages logging.
 * Caller should set flag depending on which operation to perform, details as
 * below:
 *
 * Calling the IOCTL with VFIO_IOMMU_DIRTY_PAGES_FLAG_START flag set, instructs
 * the IOMMU driver to log pages that are dirtied or potentially dirtied by
 * the device; designed to be used when a migration is in progress. Dirty pages
 * are logged until logging is disabled by user application by calling the IOCTL
 * with VFIO_IOMMU_DIRTY_PAGES_FLAG_STOP flag.
 *
 * Calling the IOCTL with VFIO_IOMMU_DIRTY_PAGES_FLAG_STOP flag set, instructs
 * the IOMMU driver to stop logging dirtied pages.
 *
 * Calling the IOCTL with VFIO_IOMMU_DIRTY_PAGES_FLAG_GET_BITMAP flag set
 * returns the dirty pages bitmap for IOMMU container for a given IOVA range.
 * The user must specify the IOVA range and the pgsize through the structure
 * vfio_iommu_type1_dirty_bitmap_get in the data[] portion. This interface
 * supports getting a bitmap of the smallest supported pgsize only and can be
 * modified in future to get a bitmap of any specified supported pgsize. The
 * user must provide a zeroed memory area for the bitmap memory and specify its
 * size in bitmap.size. One bit is used to represent one page consecutively
 * starting from iova offset. The user should provide page size in bitmap.pgsize
 * field. A bit set in the bitmap indicates that the page at that offset from
 * iova is dirty. The caller must set argsz to a value including the size of
 * structure vfio_iommu_type1_dirty_bitmap_get, but excluding the size of the
 * actual bitmap. If dirty pages logging is not enabled, an error will be
 * returned.
 *
 * Only one of the flags _START, _STOP and _GET may be specified at a time.
 *
 */
struct vfio_iommu_type1_dirty_bitmap {
	__u32        argsz;
	__u32        flags;
#define VFIO_IOMMU_DIRTY_PAGES_FLAG_START	(1 << 0)
#define VFIO_IOMMU_DIRTY_PAGES_FLAG_STOP	(1 << 1)
#define VFIO_IOMMU_DIRTY_PAGES_FLAG_GET_BITMAP	(1 << 2)
	__u8         data[];
};

struct vfio_iommu_type1_dirty_bitmap_get {
	__u64              iova;	/* IO virtual address */
	__u64              size;	/* Size of iova range */
	struct vfio_bitmap bitmap;
};

#define VFIO_IOMMU_DIRTY_PAGES             _IO(VFIO_TYPE, VFIO_BASE + 17)

/* -------- Additional API for SPAPR TCE (Server POWERPC) IOMMU -------- */

/*
 * The SPAPR TCE DDW info struct provides the information about
 * the details of Dynamic DMA window capability.
 *
 * @pgsizes contains a page size bitmask, 4K/64K/16M are supported.
 * @max_dynamic_windows_supported tells the maximum number of windows
 * which the platform can create.
 * @levels tells the maximum number of levels in multi-level IOMMU tables;
 * this allows splitting a table into smaller chunks which reduces
 * the amount of physically contiguous memory required for the table.
 */
struct vfio_iommu_spapr_tce_ddw_info {
	__u64 pgsizes;			/* Bitmap of supported page sizes */
	__u32 max_dynamic_windows_supported;
	__u32 levels;
};

/*
 * The SPAPR TCE info struct provides the information about the PCI bus
 * address ranges available for DMA, these values are programmed into
 * the hardware so the guest has to know that information.
 *
 * The DMA 32 bit window start is an absolute PCI bus address.
 * The IOVA address passed via map/unmap ioctls are absolute PCI bus
 * addresses too so the window works as a filter rather than an offset
 * for IOVA addresses.
 *
 * Flags supported:
 * - VFIO_IOMMU_SPAPR_INFO_DDW: informs the userspace that dynamic DMA windows
 *   (DDW) support is present. @ddw is only supported when DDW is present.
 */
struct vfio_iommu_spapr_tce_info {
	__u32 argsz;
	__u32 flags;
#define VFIO_IOMMU_SPAPR_INFO_DDW	(1 << 0)	/* DDW supported */
	__u32 dma32_window_start;	/* 32 bit window start (bytes) */
	__u32 dma32_window_size;	/* 32 bit window size (bytes) */
	struct vfio_iommu_spapr_tce_ddw_info ddw;
};

#define VFIO_IOMMU_SPAPR_TCE_GET_INFO	_IO(VFIO_TYPE, VFIO_BASE + 12)

/*
 * EEH PE operation struct provides ways to:
 * - enable/disable EEH functionality;
 * - unfreeze IO/DMA for frozen PE;
 * - read PE state;
 * - reset PE;
 * - configure PE;
 * - inject EEH error.
 */
struct vfio_eeh_pe_err {
	__u32 type;
	__u32 func;
	__u64 addr;
	__u64 mask;
};

struct vfio_eeh_pe_op {
	__u32 argsz;
	__u32 flags;
	__u32 op;
	union {
		struct vfio_eeh_pe_err err;
	};
};

#define VFIO_EEH_PE_DISABLE		0	/* Disable EEH functionality */
#define VFIO_EEH_PE_ENABLE		1	/* Enable EEH functionality  */
#define VFIO_EEH_PE_UNFREEZE_IO		2	/* Enable IO for frozen PE   */
#define VFIO_EEH_PE_UNFREEZE_DMA	3	/* Enable DMA for frozen PE  */
#define VFIO_EEH_PE_GET_STATE		4	/* PE state retrieval        */
#define  VFIO_EEH_PE_STATE_NORMAL	0	/* PE in functional state    */
#define  VFIO_EEH_PE_STATE_RESET	1	/* PE reset in progress      */
#define  VFIO_EEH_PE_STATE_STOPPED	2	/* Stopped DMA and IO        */
#define  VFIO_EEH_PE_STATE_STOPPED_DMA	4	/* Stopped DMA only          */
#define  VFIO_EEH_PE_STATE_UNAVAIL	5	/* State unavailable         */
#define VFIO_EEH_PE_RESET_DEACTIVATE	5	/* Deassert PE reset         */
#define VFIO_EEH_PE_RESET_HOT		6	/* Assert hot reset          */
#define VFIO_EEH_PE_RESET_FUNDAMENTAL	7	/* Assert fundamental reset  */
#define VFIO_EEH_PE_CONFIGURE		8	/* PE configuration          */
#define VFIO_EEH_PE_INJECT_ERR		9	/* Inject EEH error          */

#define VFIO_EEH_PE_OP			_IO(VFIO_TYPE, VFIO_BASE + 21)

/**
 * VFIO_IOMMU_SPAPR_REGISTER_MEMORY - _IOW(VFIO_TYPE, VFIO_BASE + 17, struct vfio_iommu_spapr_register_memory)
 *
 * Registers user space memory where DMA is allowed. It pins
 * user pages and does the locked memory accounting so
 * subsequent VFIO_IOMMU_MAP_DMA/VFIO_IOMMU_UNMAP_DMA calls
 * get faster.
 */
struct vfio_iommu_spapr_register_memory {
	__u32	argsz;
	__u32	flags;
	__u64	vaddr;				/* Process virtual address */
	__u64	size;				/* Size of mapping (bytes) */
};
#define VFIO_IOMMU_SPAPR_REGISTER_MEMORY	_IO(VFIO_TYPE, VFIO_BASE + 17)

/**
 * VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY - _IOW(VFIO_TYPE, VFIO_BASE + 18, struct vfio_iommu_spapr_register_memory)
 *
 * Unregisters user space memory registered with
 * VFIO_IOMMU_SPAPR_REGISTER_MEMORY.
 * Uses vfio_iommu_spapr_register_memory for parameters.
 */
#define VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY	_IO(VFIO_TYPE, VFIO_BASE + 18)

/**
 * VFIO_IOMMU_SPAPR_TCE_CREATE - _IOWR(VFIO_TYPE, VFIO_BASE + 19, struct vfio_iommu_spapr_tce_create)
 *
 * Creates an additional TCE table and programs it (sets a new DMA window)
 * to every IOMMU group in the container. It receives page shift, window
 * size and number of levels in the TCE table being created.
 *
 * It allocates and returns an offset on a PCI bus of the new DMA window.
 */
struct vfio_iommu_spapr_tce_create {
	__u32 argsz;
	__u32 flags;
	/* in */
	__u32 page_shift;
	__u32 __resv1;
	__u64 window_size;
	__u32 levels;
	__u32 __resv2;
	/* out */
	__u64 start_addr;
};
#define VFIO_IOMMU_SPAPR_TCE_CREATE	_IO(VFIO_TYPE, VFIO_BASE + 19)

/**
 * VFIO_IOMMU_SPAPR_TCE_REMOVE - _IOW(VFIO_TYPE, VFIO_BASE + 20, struct vfio_iommu_spapr_tce_remove)
 *
 * Unprograms a TCE table from all groups in the container and destroys it.
 * It receives a PCI bus offset as a window id.
 */
struct vfio_iommu_spapr_tce_remove {
	__u32 argsz;
	__u32 flags;
	/* in */
	__u64 start_addr;
};
#define VFIO_IOMMU_SPAPR_TCE_REMOVE	_IO(VFIO_TYPE, VFIO_BASE + 20)

/* ***************************************************************** */

#endif /* VFIO_H */

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