Displaying 20 results from an estimated 1000 matches similar to: "virsh attach device equivalent in libvirt API"
2015 Aug 13
1
Host and Guest UUID ?
Hi,
Are there some kind of UUIDs for Host and Guest ?
If yes , how may I retrieve them programmatically ?
My goal is to trace GUEST migrations.
Thx for help.
Regards,
J.P. Ribeauville
P: +33.(0).1.47.17.27.87
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jpribeauville@axway.com<mailto:jpribeauville@axway.com>
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2015 Dec 07
2
libvirt logging of virDomainAttachDeviceFlags()
Hi,
When using « virsh attach-device ....." to add a channel device to a Guest , I see following entry in libvirt log :
2015-12-07 11:14:47.307+0000: 14551: debug : virDomainAttachDeviceFlags:10433 : dom=0x7f2a58252fc0, ........
Great !!
But , when calling virDomainAttachDeviceFlags( ) from a C program , I got return code -1 but nothing appears related to virDomainAttachDeviceFlags(
2018 Oct 09
3
Serial ports: vm vs bare metal
I'm running libvirt under Fedora 28. I would like to attach a USB
device to a VM, but when I select "Redirect USB Device" from the
"Virtual Machine" menu in virt-manager and then select the device, I
get the error:
USB redirection error
spice-client-error-quark: Could not redirect [device name] at 1-11:
Error setting USB device node ACL: 'Not authorized' (0)
2016 Mar 04
2
Re: Why are virsh vol-upload/vol-download so slow?
On Fri, Mar 04, 2016 at 04:57:30PM +0000, Daniel P. Berrange wrote:
> What version of libvirt ? We had an unfortunate implementation mistake
> which caused us to waste tonnes of time in memmove(). versions since
> 1.2.19 have a fix that addresses it
Ah, this is on F23, which has:
libvirt-1.2.18.2-2.fc23.x86_64
There's nothing more recent right now in either updates or
2016 Mar 06
2
Convincing libvirt to create a bridge device?
I was hoping that I could delegate creation of bridge devices to
libvirt for address-less bridges, in order to not have to deal with
the various ways distributions handle persistent network
configuration, but while this creates a libvirt network...
<network>
<name>provision</name>
<forward mode='bridge'/>
<bridge name='brprov'/>
2016 Mar 04
2
Why are virsh vol-upload/vol-download so slow?
I was interested in using 'virsh vol-upload' and 'virsh vol-download',
rather than mucking about directly with the filesystem. But while
simply copying the image is relatively quick:
# ls -l /var/lib/libvirt/images/centos-7-cloud.qcow2
-rw-r--r--. 1 qemu qemu 1004994560 Apr 15 2015 centos-7-cloud.qcow2
# time cp /var/lib/libvirt/images/centos-7-cloud.qcow2
2016 May 02
3
Making remote access to qemu://session easier?
This is frustrating:
$ export LIBVIRT_DEFAULT_URI=qemu+ssh://remotehost/session
$ virsh list
error: failed to connect to the hypervisor
error: no valid connection
error: Operation not supported: Connecting to session instance without socket path is not supported by the ssh connection driver
Has there been any thought given to making this easier? It seems that
having a simple helper
2023 Jun 12
2
virsh not connecting to libvertd ?
Just found my issue.
After I removed the cephfs mounts it worked!
I will debug ceph.
I assumed because I could touch files on mounted cephfs it was working.
Now virsh list works!
thanks
jerry
Lars Kellogg-Stedman
> On Tue, Jun 06, 2023 at 04:56:38PM -0400, Jerry Buburuz wrote:
>> Recently both virsh stopped talking to the libvirtd. Both stopped within
>> a
>> few days of
2018 Oct 10
1
Re: [Spice-devel] usbredir error: Error setting USB device node ACL: 'Not authorized'
Hey,
On Wed, Oct 10, 2018 at 09:57:39AM -0400, Cole Robinson wrote:
> On 10/09/2018 04:42 PM, Lars Kellogg-Stedman wrote:
> > I'm running libvirt under Fedora 28. I would like to attach a USB
> > device to a VM, but when I select "Redirect USB Device" from the
> > "Virtual Machine" menu in virt-manager and then select the device, I
> > get the
2015 May 01
1
Re: Limitations of macvtap devices?
On 04/30/2015 11:18 AM, Laine Stump wrote:
> On 04/30/2015 10:26 AM, Lars Kellogg-Stedman wrote:
>> I am running OpenStack inside a libvirt guest that is connected to the
>> local network via a macvtap interface. My experience so far suggests
>> that a macvtap interface will not pass traffic with a source MAC
>> address other than the MAC address of the interface
2016 Jan 08
2
Re: operation forbidden Read Only Access
Hi,
I found an answer :
Use virConnectOpenAuth() instead of virConnectOpenReadOnly().
As my piece of code is running silently (without user connected) , by using virConnectOpenAuth() ,
is it possible to avoid to prompt user to get user /password ?
Thx.
J.P.
-----Message d'origine-----
De : libvirt-users-bounces@redhat.com [mailto:libvirt-users-bounces@redhat.com] De la part de
2016 Jan 12
2
vdsm hook issues
Hi,
1) is it enough to add a hook.py in /usr/libexec/vdsm/hooks/before_vm_start directory , and then shut down and reboot a guest to
see this hook.py invoked ?
2) when running manually my hook.py, I got following error :
ImportError: No module named hooking
Do I have to install anything to solve this issue ?
Thanks for help.
Regards,
J.P. Ribeauville
P:
2015 Nov 09
2
availability of target type state within a dumpxml result
Hi,
I'm trying to find out what is the minimum release I need to use to have this field 'state' available ?
<channel type='unix'>
<source mode='bind' path='//var/lib/libvirt/qemu/dummy_agent'/>
<target type='virtio' name=dummy' state='connected'/>
<alias name='channel0'/>
<address
2016 Jan 07
3
Unable to retrieve Guest IP Addresses via libvirt API
Hi ,
Despite the fact that my Guest has an IP address , by running this piece of code on a KVM host :
ifaces_count = F_virDomainInterfaceAddresses(domain, &ifaces,VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_LEASE, NULL);
ifaces_count = F_virDomainInterfaceAddresses(domain, &ifaces,VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_AGENT, NULL);
I'm not able to get a ifaces_count different from
2015 Oct 29
2
How to retrieve legacy cgroups location ?
Hi,
As told in "Control Groups Resource Management" libvirt page :
Legacy cgroups layout
Prior to libvirt 1.0.5, the cgroups layout created by libvirt was different from that described above, and did not allow for administrator customization. Libvirt used a fixed, 3-level hierarchy libvirt/{qemu,lxc}/$VMNAME which was rooted at the point in the hierarchy where libvirtd itself was
2015 Dec 18
1
Getting IP address of a lxc container via libvirt
Hello
I wanted to understand if there is a way to get LXC container's ip address.
- virDomainInterfaceAddresses API only works for qemu/kvm and not with the
lxc driver.
What other options do I have?
Using enter-lxc-namespace is throwing this error:
virsh -c lxc:/// lxc-enter-namespace <domain> --noseclabel /sbin/ifconfig
libvirt: error : Expected at least one file descriptor
2015 Nov 04
2
Retrieving datas sent by host within the Guest
Hi,
I' trying to read datas sent by my KVM host within the Guest.
Host send these datas trough a channel UNIX type , by using AF_UNIX socket stuff.
If i try to retrive the datas by using such type of thing in the Guest :
#define NAME "/dev/virtio-ports/agent"
sock = socket(AF_UNIX, SOCK_STREAM, 0);
12 if (sock < 0) {
13 perror("opening stream socket");
2016 Jan 12
2
Re: libvirt-users Digest, Vol 73, Issue 12 ] Failure when attaching a device
Hi,
I think that issue is due to the fact that my Guest is a transient domain.
When shutting down it or migrating to another host , then virsh list --all doesn't show this Guest anymore.
How may I make this Guest a persistent one ?
( i.e. this Guest has been created via RHEV-M GUI)
Thx for hlep.
Regards,
J.P.
-----Message d'origine-----
De : libvirt-users-bounces@redhat.com
2015 Sep 24
1
Guest cpuacct counters and others location
Hi,
My piece of code ( C langage) uses cgroups to retrieve counters related to cpu and memory usage related to KVM guests hosted by the host where this code runs.
I noticed that depending on the O.S. running on the host , these counters are not found at the same location :
CentOS 7 :
ls /sys/fs/cgroup/cpuacct/machine.slice/machine-qemu\\x2drhel6.0.scope/vcpu0
cgroup.clone_children
2015 Jul 08
2
cpuacct and emulator/cpuacct
Hello,
Does it exist some documentation concerning following topic ?
What's difference between following perf counters :
/cgroup/cpuacct/libvirt/qemu/test/cpuacct.usage
and
/cgroup/cpuacct/libvirt/qemu/test/emulator/cpuacct.usage
Thx .
Regards,
J.P. Ribeauville
P: +33.(0).1.47.17.27.78
Puteaux 3 Etage 5 Bureau 4
jpribeauville@axway.com<mailto:jpribeauville@axway.com>