By default, pool-info will convert sizes to human friendly units.
This patch will introduce option [--bytes].
If specified, the raw sizes will be in the output.
Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1373711
Add support and documentation for the [NO_]OVERWRITE flags for the
logical backend.
Update virsh.pod with a description of the process for usage of
the flags and building of the pool's volume group.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than have the Disk code having to use PARTED to determine if
there's something on the device, let's use the virStorageBackendDeviceProbe.
and only fallback to the PARTED probing if the BLKID code isn't built in.
This will also provide a mechanism for the other current caller (File
System Backend) to utilize a PARTED parsing algorithm in the event that
BLKID isn't built in to at least see if *something* exists on the disk
before blindly trying to use. The PARTED error checking will not find
file system types, but if there is a partition table set on the device,
it will at least cause a failure.
Move virStorageBackendDiskValidLabel and virStorageBackendDiskFindLabel
to storage_backend and rename/rework the code to fit the new model.
Update the virsh.pod description to provide a more generic description
of the process since we could now use either blkid or parted to find
data on the target device.
Signed-off-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1363586
Commit id '27758859' introduced the "NO_OVERWRITE" flag check for
file system backends; however, the implementation, documentation,
and algorithm was inconsistent. For the "flag" description for the
API the flag was described as "Do not overwrite existing pool";
however, within the storage backend code the flag is described
as "it probes to determine if filesystem already exists on the
target device, renurning an error if exists".
The code itself was implemented using the paradigm to set up the
superblock probe by creating a filter that would cause the code
to only search for the provided format type. If that type wasn't
found, then the algorithm would return success allowing the caller
to format the device. If the format type already existed on the
device, then the code would fail indicating that the a filesystem
of the same type existed on the device.
The result is that if someone had a file system of one type on the
device, it was possible to overwrite it if a different format type
was specified in updated XML effectively trashing whatever was on
the device already.
This patch alters what NO_OVERWRITE does for a file system backend
to be more realistic and consistent with what should be expected when
the caller requests to not overwrite the data on the disk.
Rather than filter results based on the expected format type, the
code will allow success/failure be determined solely on whether the
blkid_do_probe calls finds some known format on the device. This
adjustment also allows removal of the virStoragePoolProbeResult
enum that was under utilized.
If it does find a formatted file system different errors will be
generated indicating a file system of a specific type already exists
or a file system of some other type already exists.
In the original virsh support commit id 'ddcd5674', the description
for '--no-overwrite' within the 'pool-build' command help output
has an ambiguous "of this type" included in the short description.
Compared to the longer description within the "Build a given pool."
section of the virsh.pod file it's more apparent that the meaning
of this flag would cause failure if a probe of the target already
has a filesystem.
So this patch also modifies the short description to just be the
antecedent of the 'overwrite' flag, which matches the API description.
This patch also modifies the grammar in virsh.pod for no-overwrite
as well as reworking the paragraph formats to make it easier to read.
Signed-off-by: John Ferlan <jferlan@redhat.com>
The virsh manpage lists "shutdown" and "dying" as two of the possible
domain states that could be listed in the output of the "virsh list"
command. However, a domain that is being shutdown will be listed as
"in shutdown", and the "dying" state doesn't even exist (and never
has, as far as I can tell from looking through git history - it was
shown in the original import of the virsh.pod file in 2006; there was
no VIR_DOMAIN_DYING state then, there wasn't one when those lines of
virsh.pod were tweaked in 2008, and there still isn't one
today. Apparently it was just something that sounded like a good idea
to someone at some time, but was never implemented...)
Resolves: https://bugzilla.redhat.com/1408778
This patch adds support and documentation for
a generalized hardware cache event called cache_l1d
perf event.
Signed-off-by: Nitesh Konkar <nitkon12@linux.vnet.ibm.com>
The virsh manpage lists options --uuid and --name as
mutually exclusive along option --table when actually
the option --table is mutually exclusive and can't go
with options --uuid and/or --name. This patch rewords the
virsh manpage to state the correct meaning.
Signed-off-by: Nitesh Konkar <nitkon12@linux.vnet.ibm.com>
Add a new qualifier '--physical' to the 'vol-info' command in order to
dispaly the physical size of the volume. The size can differ from the
allocation value depending on the volume file time. In particular, qcow2
volumes will have a physical value larger than allocation. This also occurs
for sparse files, although for those the capacity is the largest size;
whereas, for qcow2 capacity is the logical size.
Signed-off-by: John Ferlan <jferlan@redhat.com>
With current perf framework, this patch adds support and documentation
for the branch_instructions perf event.
Signed-off-by: Nitesh Konkar <nitkon12@linux.vnet.ibm.com>
Commit v1.3.3-181-gb028e9d7c implmented support for
VIR_MIGRATE_PARAM_PERSIST_XML migration parameter, but forgot to update
virsh.
https://bugzilla.redhat.com/show_bug.cgi?id=835300
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
The 'on_shutdown' was the name in Xen, there was never such option in
libvirt's domain XML.
Reported-by: Ruben Kerkhof <ruben@rubenkerkhof.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1349898
Add the duration parameters to the virsh input/output for blkdeviotune
command and describe them in the pod file.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Added description for new vcpu.<num>.halted statistics value.
While there, also added a description for vcpu.<num>.wait and
clarified the units displayed for time and wait.
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
For one VM, it could had more than one graphical display.
Such as we coud add both vnc and spice display to a VM.
This patch introduces '--all' for showing all
possible graphical display of a active VM.
Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
For compatibility reasons virDomainSetVcpus needs to add vcpus as non
hotpluggable which means that the users will not be able to unplug it
after the VM has started. Add a flag that will allow to tell the API
that the unpluggable vcpus are okay.
Commit 6c504d6a added a note to the virsh man page about the
deprecation of 'cap' and 'weight' settings for the credit
scheduler. To this day, the default scheduler in Xen is credit
and it supports setting 'cap' and 'weight'. Remove the deprecation
notice from the note on the Xen credit scheduler.
Reported-by: Volo M. <vm@vovs.net>
The command is deprecated due to being grammatically incorrect, but for
backwards compatibility reasons cannot be removed. However, we should not
document such commands.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
With current perf framework, this patch adds support and documentation
for more perf events, including cache misses, cache references, cpu cycles,
and instructions.
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>
In libvirt, snapshot means disk snapshot.
snapshot --live is more like VM checkpoint.
Make it clear in virsh.pod.
Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1356937
Add the definitions to allow for viewing/setting cgroup period and quota
limits for IOThreads.
This is similar to the work done for emulator quota and period by
commit ids 'b65dafa' and 'e051c482'.
Being able to view/set the IOThread specific values is related to more
recent changes adding global period (commmit id '4d92d58f') and global
quota (commit id '55ecdae') definitions and qemu support (commit id
'4e17ff79' and 'fbcbd1b2'). With a global setting though, if somehow
the IOThread value in the cgroup hierarchy was set "outside of libvirt"
to a value that is incompatible with the global value.
Allowing control over IOThread specific values provides the capability
to alter the IOThread values as necessary.
To collect all balloon statistics for all guests it was necessary to make
several libvirt requests. Now it's possible to get all balloon statiscs via
single connectGetAllDomainStats call.
Signed-off-by: Derbyshev Dmitry <dderbyshev@virtuozzo.com>
They can be used to tune auto-convergence algorithm (which is enabled
with VIR_MIGRATE_AUTO_CONVERGE).
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Crash dump in a old kvmdump format is being obsolete and cannot be loaded and
processed by crash utility since its version 6.1.0. A --memory-only option is
required in order to produce valid ELF file which can be later processed by the
crash utility. A new note is added to the dump command description.
