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Dependant is flagged as wrong in US dictionary (only valid in UK
dictionary, and even then, it has only the financial sense and not the
inter-relatedness sense that we are more prone to be wanting throughout
code).
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1206479
As described in virDomainBlockCopy() parameters description, the
VIR_DOMAIN_BLOCK_COPY_GRANULARITY parameter may require the value to
have some specific attributes (e.g. be a power of two or fall within a
certain range). And in qemu, a power of two is required. However, our
code does not check that and let qemu operation fail. Moreover, the
virsh man page is not as exact as it could be in this respect.
Signed-off-by: Luyao Huang <lhuang@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The virNodeDeviceDettach API only works on PCI devices.
Originally added by commit 10d3272e, but the API never
supported USB devices.
Reported by: Martin Polednik <mpolednik@redhat.com>
The command did not modify the disk type and thus didn't allow to change
media from a file image to a block backed image or vice versa. In
addition when operating on a network backed removable devices the
command would replace the while <source> subelement with an invalid one.
This patch adds the --block option that allows to specify that the new
image is block backed and assumes that without that option all images
are file backed. Since network backends were always mangled it should
not cause problems.
https://bugzilla.redhat.com/show_bug.cgi?id=1135491
$ virsh iothread --help
NAME
iothreadpin - control domain IOThread affinity
SYNOPSIS
iothreadpin <domain> <iothread> <cpulist> [--config] [--live] [--current]
DESCRIPTION
Pin domain IOThreads to host physical CPUs.
OPTIONS
[--domain] <string> domain name, id or uuid
[--iothread] <number> IOThread ID number
[--cpulist] <string> host cpu number(s) to set
--config affect next boot
--live affect running domain
--current affect current domain
Using the output from iothreadsinfo, allow changing the pinned CPUs for
a single IOThread.
$ virsh iothreadsinfo $dom
IOThread ID CPU Affinity
---------------------------------------------------
1 2
2 3
3 0-1
$ virsh iothreadpin $dom 3 0-2
Then view the change
$ virsh iothreadsinfo $dom
IOThread ID CPU Affinity
---------------------------------------------------
1 2
2 3
3 0-2
If an invalid value is supplied or require option missing,
then an error will be displayed:
$ virsh iothreadpin $dom 4 3
error: invalid argument: iothread value out of range 4 > 3
$ virsh iothreadpin $dom 3
error: command 'iothreadpin' requires <cpulist> option
Now that qemuDomainBlocksStatsGather provides functions of both
qemuMonitorGetBlockStatsParamsNumber and qemuMonitorGetBlockStatsInfo we
can reuse it and kill a lot of code.
Additionally as a bonus qemuDomainBlockStatsFlags will now support
summary statistics so add a statement to the virsh man page about that.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1142636
Add the 'iothreadsinfo' command to display IOThread Info data. Allow for
[--live] or [--config] options in order to display live or config data
for an active domain.
$ virsh iothreadsinfo --help
NAME
iothreadsinfo - view domain IOThreads
SYNOPSIS
iothreadsinfo <domain> [--config] [--live] [--current]
DESCRIPTION
Returns basic information about the domain IOThreads.
OPTIONS
[--domain] <string> domain name, id or uuid
--config affect next boot
--live affect running domain
--current affect current domain
An active domain may return:
$ virsh iothreads $dom
IOThread ID CPU Affinity
---------------------------------------------------
1 2
2 3
3 0
$ echo $?
0
For domains which don't have IOThreads the following is returned:
$ virsh iothreads $dom
No IOThreads found for the domain
$ echo $?
0
For domains which are not running the following is returned:
$ virsh iothreads $dom --live
error: Unable to get domain IOThreads information
error: Requested operation is not valid: domain is not running
$ echo $?
1
Editing a domains configuration and modifying the iothreadpin data for
thread 3 from nothing provided to setting a cpuset of '0-1' and then
displaying using --config would display:
$ virsh iothreads f18iothr --config
IOThread ID CPU Affinity
----------------------------
1 2
2 3
3 0-1
$
Signed-off-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=921426
Add to the man page a more complete description of what exactly the
command expects on input and will return on output based on what is
currently supported.
Perhaps missing findPoolSources implementations are backends for
sheepdog and rbd. Also missing any backend is zfs.
https://bugzilla.redhat.com/show_bug.cgi?id=1070695
Modify the virsh man page to more accurately describe which values are
set by the virsh setmem and displayed by the virsh memtune or dominfo
based on the setmem command results.
NUMA enabled guest configuration explicitly specifies memory sizes for
individual nodes. Allowing the virDomainSetMemoryFlags API (and friends)
to change the total doesn't make sense as the individual node configs
are not updated in that case.
Forbid use of the API in case NUMA is specified.
The description of the virsh command 'cpu-models' was written in the
wrong context (i.e. beside the domain states).
This patch moves the command description just to the cpu related
commands like 'cpu-baseline' and 'cpu-compare'.
Signed-off-by: Daniel Hansel <daniel.hansel@linux.vnet.ibm.com>
Our hotplug code supports macvtap insertion to guests. However, we
somehow forgot about 'attach-interface' (which tries to build XML from
passed arguments and use virDomainAttachDeviceFlags()).
New type is accessible under 'direct' type, to keep the same type as
used in domain XML.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Adding ccw bus address support to the optional address parameter of virsh
attach-disk. The format used is ccw:cssid. ssid.devno, e.g.
ccw:0xfe.0x0.0x0201
Virtio-ccw devices must have their cssid set to 0xfe.
Signed-off-by: Stefan Zimmermann <stzi@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Add support for --reflink to the virsh 'vol-create-from' and 'vol-clone'
commands to signify usage of the VIR_STORAGE_VOL_CREATE_REFLINK flag in the
ensuing virStorageVolCreateXMLFrom API call.
Updated the man page to describe the new flag.
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
--live and --config can't be specified together when querying the
configuration, but are valid when setting. The man page was hinting that
they are valid always.
https://bugzilla.redhat.com/show_bug.cgi?id=1138516
If the provided volume name doesn't match what parted generated as the
partition name, then return a failure.
Update virsh.pod and formatstorage.html.in to describe the 'name' restriction
for disk pools as well as the usage of the <target>'s <format type='value'>.
Now that xenconfig supports parsing and formatting Xen's
XL config format, integrate it into the libxl driver's
connectDomainXML{From,To}Native functions.
Signed-off-by: Kiarie Kahurani <davidkiarie4@gmail.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
The 'pool-build' command description for --overwrite and --no-overwrite
indicated usage for only 'filesystem' pools; however, the 'disk' pool
also supports the flags as of commit id 'afa1029a'. So add a description
for that usage.
Signed-off-by: John Ferlan <jferlan@redhat.com>
This patch introduces access to allocation information about
a backing chain of a live domain. While querying storage
volumes for read-only disks could provide some of the details,
we do NOT want to read() a file while qemu is writing it.
Also, there is one case where we have to rely on qemu: when
doing a block commit into a backing file, where that file is
stored in qcow2 format on a host block device, we want to know
the current highest write offset into that image, in order to
know if the disk must be resized larger. qemu-img does not
(currently) show this information, and none of the earlier
block APIs were extensible enough to expose it. But
virDomainListGetStats is perfect for the job!
We don't need a new group of statistics, as the existing block
group is sufficient. On the other hand, as existing libvirt
releases already report 1:1 mapping of block.count to <disk>
devices, changing the array size could confuse older clients;
and even with newer clients, the time and memory taken to
report additional statistics is not always necessary (backing
files are generally read-only except for block-commit, so while
read statistics may change, sizing statistics will not). So
the choice here is to add a new flag that only newer callers
will pass, when they are prepared for the additional information.
This patch introduces the new API, but it will take more
patches to get it implemented for qemu.
* include/libvirt/libvirt-domain.h
(VIR_CONNECT_GET_ALL_DOMAINS_STATS_BACKING): New flag.
* src/libvirt-domain.c (virConnectGetAllDomainStats): Document it,
and add a new field when it is in use.
* tools/virsh-domain-monitor.c (cmdDomstats): Use new flag.
* tools/virsh.pod (domstats): Document it.
Signed-off-by: Eric Blake <eblake@redhat.com>
I'm about to make block stats optionally more complex to cover
backing chains, where block.count will no longer equal the number
of <disks> for a domain. For these reasons, it is nicer if the
statistics output includes the source path (for local files).
This patch doesn't add anything for network disks, although we
may decide to add that later.
With this patch, I now see the following for the same domain as
in the previous patch (one qcow2 file, and an empty cdrom drive):
$ virsh domstats --block foo
Domain: 'foo'
block.count=2
block.0.name=hda
block.0.path=/var/lib/libvirt/images/foo.qcow2
block.1.name=hdc
* src/libvirt-domain.c (virConnectGetAllDomainStats): Document
new field.
* tools/virsh.pod (domstats): Document new field.
* src/qemu/qemu_driver.c (qemuDomainGetStatsBlock): Return the new
stat for local files/block devices.
(QEMU_ADD_NAME_PARAM): Add parameter.
(qemuDomainGetStatsInterface): Update caller.
Signed-off-by: Eric Blake <eblake@redhat.com>
Add the optional adapter options for pool create/define. Results in
either:
<adapter type='scsi_host' name='scsi_host2'/>
or (on one line)
<adapter type='fc_host' parent='scsi_host5'
wwnn='20000000c9831b4b' wwpn='10000000c9831b4b'/>
being generated.
Add 3 new optional options for the pool-create-as and pool-define-as
command in order to define the 3 elements required in order to add
an auth element, such as:
<auth type='chap' username='myuser'>
<secret usage='libvirtiscsi'/>
</auth>
Commit 7557ddf added some additional block.* stats to
virDomainListGetStats, but failed to document them in 'man
virsh'. Also, I noticed some inconsistent use of commas.
* tools/virsh.pod (domstats): Tweak commas, add missing stats.
Signed-off-by: Eric Blake <eblake@redhat.com>
Add a "domfsinfo" command that shows a list of filesystems info mounted in
the guest. For example:
virsh # domfsinfo vm1
Mountpoint Name Type Target
-------------------------------------------------------------------
/ sda1 ext4 hdc
/opt dm-2 vfat vda,vdb
/mnt/test sdb1 xfs sda
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Slight adjustment to the qemu-attach man page to note device hotplug
and hot unplug may not work and that the environment should be considered
read-only
Add an iothread parameter to allow attaching to an IOThread, such as:
virsh attach-disk $dom $source $target --live --config --iothread 2 \
--targetbus virtio --driver qemu --subdriver raw --type disk
When a domain is undefined, there are options to remove it's
managed save state or snapshots. However, there's another file
that libvirt creates per domain: the NVRAM variable store file.
Make sure that the file is not left behind if the domain is
undefined.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Total time of a migration and total downtime transfered from a source to
a destination host do not count with the transfer time to the
destination host and with the time elapsed before guest CPUs are
resumed. Thus, source libvirtd remembers when migration started and when
guest CPUs were paused. Both timestamps are transferred to destination
libvirtd which uses them to compute total migration time and total
downtime. Obviously, this requires the time to be synchronized between
the two hosts. The reported times are useless otherwise but they would
be equally useless if we didn't do this recomputation so don't lose
anything by doing it.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Expose the new power of virDomainBlockCopy through virsh (well,
all but the finer-grained bandwidth, as that is its own can of
worms for a later patch). Continue to use the older API where
possible, for maximum compatibility.
The command now requires either --dest (with optional --format
and --blockdev), to directly describe the file destination, or
--xml, to name a file that contains an XML description such as:
<disk type='network'>
<driver type='raw'/>
<source protocol='gluster' name='vol1/img'>
<host name='red'/>
</source>
</disk>
[well, it may be a while before the qemu driver is actually patched
to act on that particular xml beyond just parsing it, but the virsh
interface won't need changing at that time]
Non-zero option parameters are converted into virTypedParameters,
and if anything requires the new API, the command can synthesize
appropriate XML even if the --dest option was used instead of --xml.
The existing --raw flag remains for back-compat, but the preferred
spelling is now --format=raw, since the new API now allows us
to specify all formats rather than just a boolean raw to suppress
probing.
I hope I did justice in describing the effects of granularity and
buf-size on how they get passed through to qemu.
* tools/virsh-domain.c (cmdBlockCopy): Add new options --xml,
--granularity, --buf-size, --format. Make --raw an alias for
--format=raw. Call new API if new parameters are in use.
* tools/virsh.pod (blockcopy): Document new options.
Signed-off-by: Eric Blake <eblake@redhat.com>
To date, anyone performing a block copy and pivot ends up with
the destination being treated as <disk type='file'>. While this
works for data access for a block device, it has at least one
noticeable shortcoming: virDomainGetBlockInfo() reports allocation
differently for block devices visited as files (the size of the
device) than for block devices visited as <disk type='block'>
(the maximum sector used, as reported by qemu); and this difference
is significant when trying to manage qcow2 format on block devices
that can be grown as needed.
Of course, the more powerful virDomainBlockCopy() API can already
express the ability to set the <disk> type. But a new API can't
be backported, while a new flag to an existing API can; and it is
also rather inconvenient to have to resort to the full power of
generating XML when just adding a flag to the older call will do
the trick. So this patch enhances blockcopy to let the user flag
when the resulting XML after the copy must list the device as
type='block'.
* include/libvirt/libvirt.h.in (VIR_DOMAIN_BLOCK_REBASE_COPY_DEV):
New flag.
* src/libvirt.c (virDomainBlockRebase): Document it.
* tools/virsh-domain.c (opts_block_copy, blockJobImpl): Add
--blockdev option.
* tools/virsh.pod (blockcopy): Document it.
* src/qemu/qemu_driver.c (qemuDomainBlockRebase): Allow new flag.
(qemuDomainBlockCopy): Remember the flag, and make sure it is only
used on actual block devices.
* tests/qemuxml2argvdata/qemuxml2argv-disk-mirror.xml: Test it.
Signed-off-by: Eric Blake <eblake@redhat.com>
