We've changed the behavior of this API that from now on it will always
restart the VM process and we are no longer able to revert to snapshots
created by libvirt older then 0.9.5.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The new parameter group returns information about network interfaces
Signed-off-by: zhanglei <zhanglei@smartx.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Presumably the result of a copy/paste mistake, the the argument for the
`nodedev-start` command was described as a 'network' rather than a
'device'.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Issuing simple QMP commands is pain as they need to be wrapped by the
JSON wrapper:
{ "execute": "COMMAND" }
and optionally also:
{ "execute": "COMMAND", "arguments":...}
For simple commands without arguments we can add syntax sugar to virsh
which allows simple usage of QMP and additionally prepares also for
passing through of the 'arguments' section:
virsh qemu-monitor-command $VM query-status
is equivalent to
virsh qemu-monitor-command $VM '{"execute":"query-status"}'
and
virsh qemu-monitor-command $VM query-named-block-nodes '{"flat":true}'
or
virsh qemu-monitor-command $VM query-named-block-nodes '"flat":true'
is equivalent to
virsh qemu-monitor-command $VM '{"execute":"query-named-block-nodes", "arguments":{"flat":true}}'
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
New 'update-memory-device' command is introduced which aims on
making it user friendly to change <memory/> device. So far I just
need to change <requested/> so I'm introducing --requested-size
only; but the idea is that this is extensible for other cases
too. For instance, want to change <myElement/>? A new
--my-element argument can be easily introduced.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Bring the documentation for nodedev-list up to date with the latest
code, especially documenting the --active and -all options.
Also add documentation for the nodedev-define, nodedev-undefine, and
nodedev-start commands.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is currently the only way to view the 'autostart' property for a
node device in virsh.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Add ability to set node devices to autostart on boot or parent device
availability.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Recently, I wanted to attach an vhost-user interface but found
out that attach-interface command doesn't support it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Note that it's for internal testing use and remove the manpage entry.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This is the preferred way to do it, but there were a few
instances in which some of the path components had embedded
slashes instead.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This function add halt polling time interface in domstats. So that
we can use command 'virsh domstats VM' to get the data if system
support.
Signed-off-by: Yang Fei <yangfei85@huawei.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
In previous commit the virDomainCoreDumpWithFormat() API gained
new format. Expose it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Commit 95f8e3237e which introduced XML schema validation
for snapshot XMLs always asserted the validation for the XML generated
by 'virsh snapshot-create-as' on the basis that it's libvirt-generated,
thus valid.
This unfortunately isn't true as users can influence certain bits of the
XML such as the disk image path which must be a full path. Thus if a
user tries to invoke virsh as:
$ virsh snapshot-create-as upstream --diskspec vda,file=relative.qcow2
error: XML document failed to validate against schema: Unable to validate doc against /path/to/domainsnapshot.rng
Extra element disks in interleave
Element domainsnapshot failed to validate content
They get a rather useless error from the libxml2 RNG validator.
With this fix applied, we get to the XML parser in libvirtd which has a
more reasonable error:
$ virsh snapshot-create-as upstream --diskspec vda,file=relative.qcow2
error: XML error: disk snapshot image path 'relative.qcow2' must be absolute
Instead users can force validation of the XML generated by 'virsh
snapshot-create-as' by passing the '--validate' flag.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When querying guest info via virDomainGetGuestInfo() the
'guest-get-disks' agent command is called. It may report disk
serial number which we parse, but never report nor use for
anything else.
As it turns out, it may help management application find matching
disk in their internals.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-By: Tomáš Golembiovský <tgolembi@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
There are two links to this document using anchors so they need to be
updated as well.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Introduce command 'virsh domstats --dirtyrate' for reporting memory
dirty rate information. The info is listed as:
Domain: 'vm0'
dirtyrate.calc_status=2
dirtyrate.calc_start_time=1534523
dirtyrate.calc_period=1
dirtyrate.megabytes_per_second=5
Signed-off-by: Hao Wang <wanghao232@huawei.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is similar to my earlier commit which documented lxc.conf
location. Just like LXC, the libxl driver has only the system
connection and thus only few places need changing.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
The libxl driver has no session daemon therefore its split daemon
(virtxend) has to be ran as root. Any attempt to start it with
euid != 0 fails. This is why the daemon does not look under any
of XDG_* paths either.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
This is similar to my earlier commit which documented qemu.conf
locations. Luckily, the LXC driver has only the system connection
and not session or embed one.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
The LXC driver has no session daemon therefore its split daemon
(virtlxcd) has to be ran as root. Any attempt to start it with
euid != 0 fails. This is why the daemon does not look under any
of XDG_* paths either.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
In official docs we refer to it as "QEMU driver", not "qemu
driver".
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
This patch adds delay time (steal time inside guest) to libvirt
domain per-vcpu stats. Delay time is an important performance metric.
It is a consequence of the overloaded CPU. Knowledge of the delay
time of a virtual machine helps to understand if it is affected and
estimate the impact.
As a result, it is possible to react exactly when needed and
rebalance the load between hosts. This is used by cloud providers
to provide quality of service, especially when the CPU is
oversubscribed.
It's more convenient to work with this metric in a context of a
libvirt domain. Any monitoring software may use this information.
Signed-off-by: Aleksei Zakharov <zaharov@selectel.ru>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Surprisingly, we never documented the relationship between
connection URI and the location of qemu.conf. Users might wonder
what qemu.conf is loaded when they are connecting to the session
daemon or embed URI. And what to do if the file doesn't exist for
the URI they're using.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Before the conversion to using systemd DBus API to set the cpu.shares
there was some magic conversion done by kernel which was documented in
virsh manpage as well. Now systemd errors out if the value is out of
range.
Since we enforce the range for other cpu cgroup attributes 'quota' and
'period' it makes sense to do the same for 'shares' as well.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Commit <d505b8af58912ae1e1a211fabc9995b19bd40828> changed the cpu quota
value that reflects what kernel allows but did not update our
documentation.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is an adaptation of the libvirtd manpage.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
