January 2018 - Users - libvirt List Archives

[libvirt-users] All VMs permanently 'paused'
by Mark Coolen 08 Jan '18

08 Jan '18

I set up Alpine Linux as a libvirt-based KVM hypervisor last week. Everything was working beautifully on Friday. I left two Windows VMs up and running and two 'Saved' on Friday afternoon. When I go in this morning the two running ones were 'Paused' and I can't unpause them with virt-manager or with virsh. The other two saved ones I can start, but they are immediately paused too. When I click to unpause in virt- manager nothing happens. When I 'resume' in virsh I get 'Domain ... resumed' but it's immediately paused again. I looked in /var/log/libvirt/libvirtd.log and qemu/<DOMAIN>.log and there doesn't seem to be anything happening. No errors or anything. As I say. Everything was working fine on Friday afternoon. Does anyone know what I should try next? I'll attach my logs and the XML of one of my machines. _ _ _ ___ _ )\/,) ___ __ )L, )) __ __ )) __ _ _ ((`(( ((_( (| ((\ ((__((_)((_)(( (('((\(

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[libvirt-users] virsh and bash scripts
by Hetz Ben Hamo 08 Jan '18

08 Jan '18

Hi, I'm looking for a way to use virsh to connect to vCenter/VCSA and do some simple management of the VM's in case of power loss (I'm planning to run the script upon UPS/apcd event of power failure). Looking through the virsh documentation, I didn't find 2 things: 1. Login through a script (I don't see any user/password, specially since VCSA for example requires to use username(a)vsphere.local [or your AD domain insteadd of vsphere.local if you connected it to your AD domain]) 2. Get all the VMs running on the vCenter, not just specific hosts. Any suggestion? Thanks

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[libvirt-users] Libvirt not terminating SSH processes
by Priyanka Gupta 08 Jan '18

08 Jan '18

Hi LibVirt team, I am facing an issue with libvert. I am closing a "qemu+ssh" connection but the initiated ssh process are going into sleep mode and not getting killed upon closing the connection. Can you please help me figure out the issue ? -- With Kind Regards Priyanka Gupta

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[libvirt-users] Cannot Write xvga=yes in xml file
by Rogue S.T 05 Jan '18

05 Jan '18

Hello,my system info: virsh verison Compiled against library: libvirt 3.9.0 Using library: libvirt 3.9.0 Using API: QEMU 3.9.0 Running hypervisor: QEMU 2.10.90 And i want to pass through my gpu to my window 7 guest with <hostdev>, next line is comand i use: <hostdev mode='subsystem' type='pci' managed='yes' xvga='yes'> <source> <address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/> </source> <rom bar='on' file='/root/gpu.dump'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </hostdev> But i get this error: XML document failed to validate against schema: Unable to validate doc against /ocl/share/libvirt/schemas/domain.rng Extra element devices in interleave Element domain failed to validate content If i delete xvga='yes',it's ok, but i get a other question, my display is not light.

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[libvirt-users] libvirt net xml format
by Bhasker C V 04 Jan '18

04 Jan '18

Hi all, I went through the docs but could not find a way to pass the -h OR --no-hosts option to dnsmasq via libvirt xml Is there a way to do this via xml ? please can someone help. Thanks

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[libvirt-users] Using Intel Quick-Sync with GPU capable Intel CPUs
by Benjammin2068 03 Jan '18

03 Jan '18

Rogue S.T asked about checking out graphics cards which brought the question to me... Is it possible to make Intel on-CPU GPU resources to Windows 10? (the box I'm working with has Xeon E5-2640v4 CPUs which should be QuickSync capable) What else do I have to do to take advantage of this? Just load the drivers? Thanks, -Ben

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[libvirt-users] questions about disk auth element for Backing Chain
by Meina Li 03 Jan '18

03 Jan '18

Hi, I am a libvirt qe, I am testing the function about the new location of disk auth element (as sub-element of the source element) in Backing Chain Management. And I have a questions: When all the backing chain are iscsi network disk type(no matter if the authentication is exist), start the guest , it will only has the top level disk in xml and there are no other backingStore in it. The test step is below. So can this function support all backing chain with network disk type actually, or only use network authentication as the base image for backing chain of file disk type? Can you help reviewing it? Thanks very much in advance! Test step: 1. iSCSI server: o- iscsi ............................................................................................................ [Targets: 2] | o- iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.9cba196611e6 ....................................................... [TPGs: 1] | | o- tpg1 ..................................................................................... [gen-acls, tpg-auth, 1-way auth] | | o- acls .......................................................................................................... [ACLs: 0] | | o- luns .......................................................................................................... [LUNs: 4] | | | o- lun0 ................................................................ [fileio/file1 (/tmp/lun1.img) (default_tg_pt_gp)] | | o- portals .................................................................................................... [Portals: 1] | | o- 0.0.0.0:3260 ..................................................................................................... [OK] | o- iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.a8d92ebb4ece ....................................................... [TPGs: 1] | o- tpg1 .................................................................................................. [gen-acls, no-auth] | o- acls .......................................................................................................... [ACLs: 0] | o- luns .......................................................................................................... [LUNs: 3] | | o- lun0 ................................................................ [fileio/file3 (/tmp/lun3.img) (default_tg_pt_gp)] | o- portals .................................................................................................... [Portals: 1] | o- 0.0.0.0:3260 ..................................................................................................... [OK] 2. Set iscsi secret. # cat iscsi-secret.xml <secret ephemeral='no' private='yes'> <description>iSCSI secret</description> <usage type='iscsi'> <target>libvirtiscsi</target> </usage> </secret> # virsh secret-define iscsi-secret.xml Secret 47bd2f3e-023f-44ba-85a3-e8fa7f16ff23 created # MYSECRET=`printf %s "redhat" | base64` # virsh secret-set-value 47bd2f3e-023f-44ba-85a3-e8fa7f16ff23 $MYSECRET Secret value set 3. Create backing chain. # qemu-img create -f qcow2 -b iscsi:// redhat:redhat@10.66.7.27:3260/iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.9cba196611e6/0 iscsi:// 10.66.7.27:3260/iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.a8d92ebb4ece/0 -o backing_fmt=qcow2 4. Start guest. # qemu-img info iscsi:// 10.66.7.27:3260/iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.a8d92ebb4ece/0 --backing-chainimage: json:{"driver": "qcow2", "file": {"lun": "0", "portal": "10.66.7.27:3260", "driver": "iscsi", "transport": "tcp", "target": "iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.a8d92ebb4ece"}} file format: qcow2 virtual size: 5.0G (5368709120 bytes) disk size: unavailable cluster_size: 65536 backing file: iscsi:// redhat:redhat@10.66.7.27:3260/iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.9cba196611e6/0 backing file format: qcow2 Format specific information: compat: 1.1 lazy refcounts: false refcount bits: 16 corrupt: false image: json:{"driver": "qcow2", "file": {"lun": "0", "portal": " 10.66.7.27:3260", "driver": "iscsi", "transport": "tcp", "user": "redhat", "password": "redhat", "target": "iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.9cba196611e6"}} file format: qcow2 virtual size: 5.0G (5368709120 bytes) disk size: unavailable cluster_size: 65536 Format specific information: compat: 1.1 lazy refcounts: false refcount bits: 16 corrupt: false # virsh dumpxml rhel7 | grep disk -A 9 ... <disk type='network' device='disk'> <driver name='qemu' type='qcow2'/> <source protocol='iscsi' name='iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.a8d92ebb4ece/0'> <host name='10.66.7.27' port='3260'/> </source> <target dev='vdb' bus='virtio'/> <alias name='virtio-disk1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/> </disk> ... Best Regards Meina Li

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