Peng Hao 0804c849f1 kvm/x86 : add coalesced pio support ... Coalesced pio is based on coalesced mmio and can be used for some port like rtc port, pci-host config port and so on. Specially in case of rtc as coalesced pio, some versions of windows guest access rtc frequently because of rtc as system tick. guest access rtc like this: write register index to 0x70, then write or read data from 0x71. writing 0x70 port is just as index and do nothing else. So we can use coalesced pio to handle this scene to reduce VM-EXIT time. When starting and closing a virtual machine, it will access pci-host config port frequently. So setting these port as coalesced pio can reduce startup and shutdown time. without my patch, get the vm-exit time of accessing rtc 0x70 and piix 0xcf8 using perf tools: (guest OS : windows 7 64bit) IO Port Access Samples Samples% Time% Min Time Max Time Avg time 0x70:POUT 86 30.99% 74.59% 9us 29us 10.75us (+- 3.41%) 0xcf8:POUT 1119 2.60% 2.12% 2.79us 56.83us 3.41us (+- 2.23%) with my patch IO Port Access Samples Samples% Time% Min Time Max Time Avg time 0x70:POUT 106 32.02% 29.47% 0us 10us 1.57us (+- 7.38%) 0xcf8:POUT 1065 1.67% 0.28% 0.41us 65.44us 0.66us (+- 10.55%) Signed-off-by: Peng Hao <peng.hao2@zte.com.cn> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2018-10-17 00:30:11 +02:00
..
android
byteorder
caif
can
cifs
dvb	media: dvb/audio.h: get rid of unused APIs	2018-07-30 16:21:49 -04:00
genwqe
hdlc
hsi
iio	iio: Add modifier for DUV light	2018-07-23 19:18:10 +01:00
isdn
mmc
netfilter	netfilter: uapi: fix linux/netfilter/nf_osf.h userspace compilation errors	2018-08-16 19:37:09 +02:00
netfilter_arp
netfilter_bridge
netfilter_ipv4
netfilter_ipv6
nfsd
raid
sched
spi
sunrpc
tc_act
tc_ematch
usb	USB/PHY patches for 4.19-rc1	2018-08-18 10:21:49 -07:00
wimax
a.out.h
acct.h
adb.h
adfs_fs.h
affs_hardblocks.h
agpgart.h
aio_abi.h	aio: implement IOCB_CMD_POLL	2018-08-06 10:24:33 +02:00
am437x-vpfe.h
apm_bios.h
arcfb.h
arm_sdei.h
aspeed-lpc-ctrl.h
atalk.h
atm.h
atm_eni.h
atm_he.h
atm_idt77105.h
atm_nicstar.h
atm_tcp.h
atm_zatm.h
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 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2018-08-15 22:54:12 -07:00
auto_dev-ioctl.h
auto_fs.h	autofs: add AUTOFS_EXP_FORCED flag	2018-08-22 10:52:49 -07:00
auto_fs4.h
auxvec.h
ax25.h
b1lli.h
batadv_packet.h
batman_adv.h
baycom.h
bcache.h	bcache: style fix to add a blank line after declarations	2018-08-11 15:46:41 -06:00
bcm933xx_hcs.h
bfs_fs.h
binfmts.h
blkpg.h
blktrace_api.h
blkzoned.h
bpf.h	bpf: Introduce bpf_skb_ancestor_cgroup_id helper	2018-08-13 01:02:39 +02:00
bpf_common.h
bpf_perf_event.h
bpfilter.h
bpqether.h
bsg.h
bt-bmc.h
btf.h	bpf: btf: Clean up BTF_INT_BITS() in uapi btf.h	2018-07-20 10:25:48 +02:00
btrfs.h
btrfs_tree.h
can.h	can: uapi: can.h: Fix can error class mask dir path	2018-07-27 10:40:16 +02:00
capability.h
capi.h
cciss_defs.h
cciss_ioctl.h
cdrom.h
cec-funcs.h
cec.h	media: uapi/linux/cec.h: add 5V events	2018-07-25 06:59:23 -04:00
cgroupstats.h
chio.h
cm4000_cs.h
cn_proc.h
coda.h
coda_psdev.h
coff.h
connector.h
const.h
coresight-stm.h
cramfs_fs.h
cryptouser.h
cuda.h
cyclades.h
cycx_cfm.h
dcbnl.h	net: dcb: add DSCP to comment about priority selector types	2018-07-29 12:53:54 -07:00
dccp.h
devlink.h
dlm.h
dlm_device.h
dlm_netlink.h
dlm_plock.h
dlmconstants.h
dm-ioctl.h
dm-log-userspace.h
dma-buf.h
dn.h
dqblk_xfs.h
edd.h
efs_fs_sb.h
elf-em.h
elf-fdpic.h
elf.h
elfcore.h
errno.h
errqueue.h
erspan.h
ethtool.h	ethtool: Add WAKE_FILTER and RX_CLS_FLOW_WAKE	2018-08-07 12:15:03 -07:00
eventpoll.h
fadvise.h
falloc.h
fanotify.h
fb.h
fcntl.h
fd.h
fdreg.h
fib_rules.h
fiemap.h
filter.h
firewire-cdev.h
firewire-constants.h
flat.h
fou.h
fpga-dfl.h
fs.h
fsi.h
fsl_hypervisor.h
fsmap.h
fuse.h
futex.h
gameport.h
gen_stats.h
genetlink.h
gfs2_ondisk.h
gigaset_dev.h
gpio.h
gsmmux.h
gtp.h
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.h
i2o-dev.h
i8k.h
icmp.h
icmpv6.h
if.h
if_addr.h
if_addrlabel.h
if_alg.h
if_arcnet.h
if_arp.h
if_bonding.h
if_bridge.h
if_cablemodem.h
if_eql.h
if_ether.h
if_fc.h
if_fddi.h
if_frad.h
if_hippi.h
if_infiniband.h
if_link.h	net: report min and max mtu network device settings	2018-07-29 12:57:26 -07:00
if_ltalk.h
if_macsec.h
if_packet.h
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
if_vlan.h
if_x25.h
if_xdp.h
ife.h
igmp.h
ila.h
in.h
in6.h
in_route.h
inet_diag.h
inotify.h
input-event-codes.h
input.h
ioctl.h
ip.h	route: add support for directed broadcast forwarding	2018-07-29 12:37:06 -07:00
ip6_tunnel.h
ip_vs.h
ipc.h
ipmi.h
ipmi_bmc.h
ipmi_msgdefs.h
ipsec.h
ipv6.h
ipv6_route.h
ipx.h
irqnr.h
isdn.h
isdn_divertif.h
isdn_ppp.h
isdnif.h
iso_fs.h
ivtv.h
ivtvfb.h
jffs2.h
joystick.h	Input: stop telling users to snail-mail Vojtech	2018-07-26 17:04:37 -07:00
Kbuild
kcm.h
kcmp.h
kcov.h
kd.h
kdev_t.h
kernel-page-flags.h
kernel.h
kernelcapi.h
kexec.h
keyboard.h
keyctl.h	uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name	2018-09-04 16:45:02 -07:00
kfd_ioctl.h
kvm.h	kvm/x86 : add coalesced pio support	2018-10-17 00:30:11 +02:00
kvm_para.h	KVM: X86: Implement PV IPIs in linux guest	2018-08-06 17:59:22 +02:00
l2tp.h	l2tp: ignore L2TP_ATTR_MTU	2018-08-03 10:03:57 -07:00
libc-compat.h
lightnvm.h
limits.h
lirc.h
llc.h
loop.h
lp.h
lwtunnel.h
magic.h
major.h
map_to_7segment.h
matroxfb.h
max2175.h
mdio.h
media-bus-format.h	media: v4l: Add new 2X8 10-bit grayscale media bus code	2018-08-02 06:04:57 -04:00
media.h	media: media.h: remove linux/version.h include	2018-07-27 07:52:39 -04:00
mei.h
membarrier.h
memfd.h
mempolicy.h
meye.h
mic_common.h
mic_ioctl.h
mii.h	net: phy: add GBit master / slave error detection	2018-07-24 14:41:08 -07:00
minix_fs.h
mman.h
mmtimer.h
module.h
mpls.h
mpls_iptunnel.h
mqueue.h
mroute.h
mroute6.h
msdos_fs.h
msg.h
mtio.h
n_r3964.h
nbd-netlink.h
nbd.h
ncsi.h
ndctl.h
neighbour.h
net.h
net_dropmon.h
net_namespace.h
net_tstamp.h
netconf.h	route: add support for directed broadcast forwarding	2018-07-29 12:37:06 -07:00
netdevice.h
netfilter.h
netfilter_arp.h
netfilter_bridge.h	netfilter: bridge: Expose nf_tables bridge hook priorities through uapi	2018-08-03 21:15:09 +02:00
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netlink.h
netlink_diag.h
netrom.h
nfc.h
nfs.h
nfs2.h
nfs3.h
nfs4.h
nfs4_mount.h
nfs_fs.h
nfs_idmap.h
nfs_mount.h
nfsacl.h
nilfs2_api.h
nilfs2_ondisk.h
nl80211.h
nsfs.h
nubus.h
nvme_ioctl.h
nvram.h
omap3isp.h
omapfb.h
oom.h
openvswitch.h
packet_diag.h
param.h
parport.h
patchkey.h
pci.h
pci_regs.h	Merge branch 'pci/virtualization'	2018-08-15 14:59:06 -05:00
pcitest.h
perf_event.h	perf/UAPI: Clearly mark __PERF_SAMPLE_CALLCHAIN_EARLY as internal use	2018-09-10 10:03:02 +02:00
personality.h
pfkeyv2.h
pg.h
phantom.h
phonet.h
pkt_cls.h	net/sched: allow flower to match tunnel options	2018-08-07 12:22:15 -07:00
pkt_sched.h	net/sched: add skbprio scheduler	2018-07-24 14:44:00 -07:00
pktcdvd.h
pmu.h	macintosh/via-pmu: Replace via-pmu68k driver with via-pmu driver	2018-07-31 19:56:42 +10:00
poll.h
posix_acl.h
posix_acl_xattr.h
posix_types.h
ppdev.h
ppp-comp.h
ppp-ioctl.h	l2tp: remove pppol2tp_session_ioctl()	2018-08-11 12:13:49 -07:00
ppp_defs.h
pps.h
pr.h
prctl.h
psample.h
psci.h
psp-sev.h
ptp_clock.h
ptrace.h
qemu_fw_cfg.h
qnx4_fs.h
qnxtypes.h
qrtr.h
quota.h
radeonfb.h
random.h
raw.h
rds.h	uapi: Fix linux/rds.h userspace compilation errors.	2018-09-02 16:14:44 -07:00
reboot.h
reiserfs_fs.h
reiserfs_xattr.h
resource.h
rfkill.h
rio_cm_cdev.h
rio_mport_cdev.h
romfs_fs.h
rose.h
route.h
rpmsg.h
rseq.h
rtc.h
rtnetlink.h	net: sched: introduce chain object to uapi	2018-07-23 20:44:12 -07:00
rxrpc.h
scc.h
sched.h
scif_ioctl.h
screen_info.h
sctp.h
sdla.h
seccomp.h
securebits.h
sed-opal.h
seg6.h
seg6_genl.h
seg6_hmac.h
seg6_iptunnel.h
seg6_local.h
selinux_netlink.h
sem.h
serial.h
serial_core.h
serial_reg.h
serio.h
shm.h
signal.h
signalfd.h
smc.h
smc_diag.h	net/smc: provide fallback reason code	2018-07-25 22:25:53 -07:00
smiapp.h
snmp.h	ip: discard IPv4 datagrams with overlapping segments.	2018-08-05 17:16:46 -07:00
sock_diag.h
socket.h
sockios.h
sonet.h
sonypi.h
sound.h
soundcard.h
stat.h
stddef.h
stm.h
string.h
suspend_ioctls.h
swab.h
switchtec_ioctl.h
sync_file.h
synclink.h
sysctl.h	ipv6: Add icmp_echo_ignore_all support for ICMPv6	2018-08-13 08:42:25 -07:00
sysinfo.h
target_core_user.h
taskstats.h
tcp.h	tcp: add stat of data packet reordering events	2018-08-01 09:56:10 -07:00
tcp_metrics.h
tee.h
termios.h
thermal.h
time.h
timerfd.h
times.h
timex.h
tiocl.h
tipc.h
tipc_config.h
tipc_netlink.h
tipc_sockets_diag.h
tls.h
toshiba.h
tty.h
tty_flags.h
types.h
udf_fs_i.h
udp.h
uhid.h
uinput.h
uio.h
uleds.h
ultrasound.h
un.h
unistd.h
unix_diag.h
usbdevice_fs.h
usbip.h
userfaultfd.h
userio.h
utime.h
utsname.h
uuid.h
uvcvideo.h	media: uvcvideo: Send a control event when a Control Change interrupt arrives	2018-07-27 06:39:57 -04:00
v4l2-common.h
v4l2-controls.h
v4l2-dv-timings.h
v4l2-mediabus.h
v4l2-subdev.h	media: v4l: Add support for STD ioctls on subdev nodes	2018-07-24 17:39:28 -04:00
vbox_err.h
vbox_vmmdev_types.h
vboxguest.h
veth.h
vfio.h	s390: vfio-ap: implement VFIO_DEVICE_GET_INFO ioctl	2018-09-28 15:50:11 +02:00
vfio_ccw.h
vhost.h	vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition	2018-09-03 21:23:24 -07:00
videodev2.h	media: v4l: Add new 10-bit packed grayscale format	2018-08-02 06:07:05 -04:00
virtio_9p.h
virtio_balloon.h
virtio_blk.h
virtio_config.h
virtio_console.h
virtio_crypto.h
virtio_gpu.h
virtio_ids.h
virtio_input.h
virtio_mmio.h
virtio_net.h
virtio_pci.h
virtio_ring.h
virtio_rng.h
virtio_scsi.h
virtio_types.h
virtio_vsock.h
vm_sockets.h
vm_sockets_diag.h
vmcore.h
vsockmon.h
vt.h
vtpm_proxy.h
wait.h
wanrouter.h
watchdog.h
wimax.h
wireless.h
wmi.h
x25.h
xattr.h
xfrm.h
xilinx-v4l2-controls.h
zorro.h
zorro_ids.h