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sephe cf8bc16b1e hyperv/vss: Add driver and tools for VSS 
VSS stands for "Volume Shadow Copy Service".  Unlike virtual machine
snapshot, it only takes snapshot for the virtual disks, so both
filesystem and applications have to aware of it, and cooperate the
whole VSS process.

This driver exposes two device files to the userland:

    /dev/hv_fsvss_dev

    Normally userland programs should _not_ mess with this device file.
    It is currently used by the hv_vss_daemon(8), which freezes and
    thaws the filesystem.  NOTE: currently only UFS is supported, if
    the system mounts _any_ other filesystems, the hv_vss_daemon(8)
    will veto the VSS process.

    If hv_vss_daemon(8) was disabled, then this device file must be
    opened, and proper ioctls must be issued to keep the VSS working.

    /dev/hv_appvss_dev

    Userland application can opened this device file to receive the
    VSS freeze notification, hold the VSS for a while (mainly to flush
    application data to filesystem), release the VSS process, and
    receive the VSS thaw notification i.e. applications can run again.

    The VSS will still work, even if this device file is not opened.
    However, only filesystem consistency is promised, if this device
    file is not opened or is not operated properly.

hv_vss_daemon(8) is started by devd(8) by default.  It can be disabled
by editting /etc/devd/hyperv.conf.

Submitted by:	Hongjiang Zhang <honzhan microsoft com>
Reviewed by:	kib, mckusick
MFC after:	3 weeks
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8224
2016-11-15 02:36:12 +00:00
..
ac Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
accton Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
acpi Merge ACPICA 20160930. 2016-10-04 20:27:15 +00:00
adduser Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
amd MFV r305100: Update amd from am-utils 6.1.5 to 6.2. 2016-11-11 02:42:53 +00:00
ancontrol ancontrol(8): replace comma with semicolon when pertinent. 2016-08-09 19:46:05 +00:00
apm Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
apmd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
arp Additional cleanup of the arp(4) man page after r306652 2016-10-07 22:17:25 +00:00
asf Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
audit Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
auditd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
auditdistd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
auditreduce Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
authpf Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
autofs Make autounmountd(8) not die when traced with "truss -p". 2016-11-02 08:12:37 +00:00
bhyve Fix improper use of "its". 2016-11-08 23:59:41 +00:00
bhyvectl Fix typo. 2016-11-13 17:55:27 +00:00
bhyveload bhyve: improve memory size documentation 2016-06-26 14:44:01 +00:00
binmiscctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
blacklistctl DIRDEPS_BUILD: Connect new directories and update dependencies. 2016-06-03 19:25:30 +00:00
blacklistd DIRDEPS_BUILD: Connect new directories and update dependencies. 2016-06-03 19:25:30 +00:00
bluetooth Avoid undefined behavior when calling va_start() in bnep_send_control(), 2016-08-29 19:40:46 +00:00
boot0cfg Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
boot98cfg Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
bootparamd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
bsdconfig Guard against bad service name argument(s) to load_rc_config() 2016-10-16 20:59:28 +00:00
bsdinstall bsdinstall: add warning when unsupported partition is modified 2016-09-05 08:42:36 +00:00
bsnmpd Correct spelling in syslog: getttimeofday -> gettimeofday 2016-11-11 21:53:38 +00:00
btxld Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
camdd Fix camdd for host-aware and host-managed SMR disks. 2016-07-20 15:00:05 +00:00
cdcontrol Remove last remnants of acd(4), mcd(4), and scd(4) drivers. 2016-08-25 19:36:58 +00:00
chkgrp Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
chown chown: use NULL instead of 0 for null pointer 2016-10-10 14:21:21 +00:00
chroot Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ckdist Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
clear_locks Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
config Allow config to be compiled from another source directory, such as one 2016-10-26 15:58:41 +00:00
cpucontrol Add support for microcode update on newer AMD CPUs (10h+) 2016-11-02 16:15:49 +00:00
crashinfo Update crashinfo to work with newer gdb from ports. 2016-07-20 18:41:47 +00:00
cron Allow symlinks to be followed in cron.d directories and fix detection of 2016-10-31 23:40:04 +00:00
crunch crunchgen: do not strip crunched binary (it will be done by install) 2016-09-30 13:16:04 +00:00
ctladm Add LU option to control reported provisioning type. 2016-10-15 14:40:34 +00:00
ctld There appeared to be even more copy/pastes. :) 2016-10-31 16:06:57 +00:00
ctm Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
daemon DIRDEPS_BUILD: Update dependencies. 2016-11-13 00:11:30 +00:00
dconschat Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
devctl Implement 'devctl clear driver' to undo a previous 'devctl set driver'. 2016-08-29 22:48:36 +00:00
devinfo Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
digictl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
diskinfo Small tweaks to the diskinfo(8) manual page, to make it more consistent 2016-09-22 07:55:07 +00:00
dumpcis Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
editmap Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
edquota Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
eeprom Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
efivar DIRDEPS_BUILD: Connect new dependencies. 2016-11-13 00:11:23 +00:00
etcupdate etcupdate: preserve the metadata of the destination file 2016-09-08 15:53:49 +00:00
extattr Disable extattr test on UFS1. 2016-09-21 10:58:58 +00:00
extattrctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
fdcontrol Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
fdformat Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
fdread Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
fdwrite Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
fifolog fifolog(1): invert order of calloc(3) arguments. 2016-09-14 16:34:52 +00:00
flowctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
fmtree Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
freebsd-update MFportsnap r264740: Use case insensitive match when parsing host(1) output. 2016-10-12 20:24:33 +00:00
fstyp fstyp tests comes with pre-created EL filesystems, 2016-10-18 12:58:17 +00:00
ftp-proxy Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
fwcontrol Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
getfmac Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
getpmac Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
gpioctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
gssd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
gstat Add flag -B which does the same like batch mode but without exiting after 2016-11-09 07:31:39 +00:00
hyperv hyperv/vss: Add driver and tools for VSS 2016-11-15 02:36:12 +00:00
i2c Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ifmcstat Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
inetd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
iostat Make the "r/s" and "w/s" fields in "iostat -x" a little bit wider; 2016-09-21 11:22:19 +00:00
iovctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ip6addrctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ipfwpcap Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
iscsid Make the iSCSI parameter negotiation more flexible. 2016-08-25 05:22:53 +00:00
jail Fix up the order in which jail creation processes are run, to preserve 2016-07-14 20:15:55 +00:00
jexec Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
jls Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
kbdcontrol Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
kbdmap Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
keyserv keyserv(1): drop useless comparison. 2016-05-30 20:41:55 +00:00
kgmon Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
kgzip kgzip.8: note that it is deprecated and clarify BUGS section 2016-08-02 21:48:26 +00:00
kldxref Use roundup2() from sys/param.h. 2016-08-23 13:43:43 +00:00
lastlogin Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
lmcconfig Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
lpr Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
lptcontrol Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mailstats Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mailwrapper Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
makefs Assign a random number to di_gen (for FFS), instead of extracting it 2016-11-05 16:23:33 +00:00
makemap Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
manctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
memcontrol Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mergemaster META_MODE: Don't require filemon(4) for mergemaster(8)/etcupdate(8) 2016-07-12 19:47:01 +00:00
mfiutil Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mixer Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mld6query Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mlxcontrol Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mount_smbfs Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mountd Fix the man page to reflect the change done by r307890 to mountd.c 2016-10-25 00:59:23 +00:00
moused Add Elantech trackpad to the list of known models 2016-09-26 22:07:45 +00:00
mpsutil Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mptable Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mptutil Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
mtest Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
nandsim Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
nandtool Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ndiscvt Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ndp Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
newsyslog Fix improper use of "its". 2016-11-08 23:59:41 +00:00
nfscbd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
nfsd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
nfsdumpstate Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
nfsrevoke Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
nfsuserd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ngctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
nghook Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
nmtree Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
nologin Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
nscd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ntp Fixup man page formatting. 2016-08-24 02:41:24 +00:00
nvram Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ofwdump Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
pc-sysinstall Remove last remnants of acd(4), mcd(4), and scd(4) drivers. 2016-08-25 19:36:58 +00:00
pciconf Add names for some DASP devices. 2016-10-21 15:23:54 +00:00
periodic Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
pkg Remove usage of _WITH_GETLINE from usr.sbin 2016-07-30 01:10:05 +00:00
pmcannotate Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
pmccontrol Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
pmcstat Remove an unused field from struct pmcstat_image. 2016-10-15 23:46:55 +00:00
pmcstudy DIRDEPS_BUILD: Add some missing dirctories to the build. 2016-08-31 19:30:59 +00:00
pnpinfo Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
portsnap portsnap: use lam on the known good hash list 2016-10-07 20:01:59 +00:00
powerd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ppp Fix build of ppp when WITHOUT_PAM is set 2016-07-04 21:18:57 +00:00
pppctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
praliases Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
praudit Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
procctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
pstat Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
pw Close some file descriptor leaks in pw 2016-10-21 20:17:19 +00:00
pwd_mkdb Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
quot Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
quotaon Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rarpd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
repquota Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rip6query Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rmt Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
route6d Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rpc.lockd Add missing break in lock_partialfilelock(..) with NFS_RESERR 2016-06-13 11:19:06 +00:00
rpc.statd Mark out_of_mem(..) and usage(..) with __dead2 as they both directly call exit 2016-05-29 04:18:47 +00:00
rpc.umntall Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rpc.yppasswdd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rpc.ypupdated Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rpc.ypxfrd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rpcbind Fix usr.sbin/rpcbind ATF tests on 32-bit platforms 2016-06-16 15:25:37 +00:00
rrenumd Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rtadvctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rtadvd Add link-layer address option in RA even for IFT_L2VLAN and IFT_BRIDGE. 2016-11-05 19:51:13 +00:00
rtprio Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
rtsold rtsold: Log messages about unexpected RAs at LOG_DEBUG. 2016-10-02 00:56:21 +00:00
rwhod Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
sa Skip lastcomm and sa tests on unsupported architectures 2016-06-26 00:53:31 +00:00
sendmail Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
service Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
services_mkdb Remove usage of _WITH_GETLINE from usr.sbin 2016-07-30 01:10:05 +00:00
sesutil Fix sesutil fault operation. 2016-09-30 20:35:12 +00:00
setfib Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
setfmac Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
setpmac Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
smbmsg smbmsg: use a more convenient way of accessing data read from a slave 2016-11-11 15:00:13 +00:00
snapinfo Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
spkrtest Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
spray Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
syslogd syslogd(8): add an 'include' keyword 2016-11-01 01:41:24 +00:00
sysrc Change my given name from "Garrett" to "Ngie" 2016-06-13 10:35:11 +00:00
tcpdchk Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
tcpdmatch Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
tcpdrop Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
tcpdump Fix spelling of the casper introduced in the r296047. 2016-06-08 22:30:21 +00:00
tests Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
timed Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
traceroute Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
traceroute6 Fix an infinite loop at an non-responding hop when other echo replies 2016-11-05 18:00:36 +00:00
trpt Remove "long" variables from the TCP stack (not including the modular 2016-10-06 16:28:34 +00:00
tzsetup Fix build of tzsetup when WITHOUT_DIALOG is set 2016-10-22 22:35:39 +00:00
uathload Rename devname to udevname after including stdlib.h in r303445 2016-07-30 20:39:39 +00:00
uefisign uefisign: Remove backwards-compatibility sys/capability.h support 2016-09-19 16:07:32 +00:00
ugidfw Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
uhsoctl Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
unbound Upgrade to Unbound 1.5.9. 2016-09-04 12:17:57 +00:00
usbconfig Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
usbdump Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
utx Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
vidcontrol vidcontrol: use calloc where appropriate 2016-11-05 11:19:55 +00:00
vigr Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
vipw Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
wake Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
watch Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
watchdogd fix a watchdogd regression introduced in r308040 2016-11-10 10:45:12 +00:00
wlandebug Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
wpa Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
yp_mkdb Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ypbind Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ypldap DIRDEPS_BUILD: Update dependencies after a 'make bootstrap-tools'. 2016-09-02 20:41:43 +00:00
yppoll Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
yppush Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ypserv Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
ypset Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
zic Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
zonectl DIRDEPS_BUILD: Connect new directories and update dependencies. 2016-06-03 19:25:30 +00:00
zzz Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
Makefile Fix build of tzsetup when WITHOUT_DIALOG is set 2016-10-22 22:35:39 +00:00
Makefile.amd64 Remove the si(4) driver and sicontrol(8) for Specialix serial cards. 2016-08-19 21:14:27 +00:00
Makefile.arm Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
Makefile.arm64 Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
Makefile.i386 Remove the wl(4) driver and wlconfig(8) utility. 2016-08-19 22:27:14 +00:00
Makefile.inc Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
Makefile.mips Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00
Makefile.powerpc Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
Makefile.sparc64 Create branch for bhyve graphics import. 2016-05-27 06:22:24 +00:00