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<qemu:commandline> ignored ?
by lejeczek 16 May '23

16 May '23

Hi guys. I have a domain definition with this: ... <qemu:commandline> <qemu:arg value='-fw_cfg'/> <qemu:arg value='name=opt/com.coreos/config,file=/00-VMs/oshift1node.ign'/> </qemu:commandline> </domain> at the bottom of xml. 'virsh' creates domain a okey but in VM I do not see ignition happened - it's fedora coreos - and when I dumpxml running domain, then indeed those bits, show above, are not there. I'd grateful for any/all thoughts shared on - what is not/happening there. Is there something else which is a prerequisite to 'qemu:commandline' but if yes and I'm missing those, why would not then 'virsh' and/or 'virtqemud' say something? many thanks, L.

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Re: PHP API
by Michal Prívozník 15 May '23

15 May '23

On 5/11/23 20:19, Simon Fairweather wrote: > Hi Michal, > > Would you be able to add, if there is a process you follow I can look at > creating merge requests. > > Regards > Simon > > int virDomainBlockPull (virDomainPtr > <https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainPtr> dom, > const char * disk, > unsigned long bandwidth, > unsigned int flags) > > > int virDomainBlockCopy (virDomainPtr > <https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainPtr> dom, > const char * disk, > const char * destxml, > virTypedParameterPtr > <https://libvirt.org/html/libvirt-libvirt-common.html#virTypedParameterPtr> params, > int nparams, > unsigned int flags)intvirDomainBlockPull (virDomainPtr > <https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainPtr>dom, > > > On Wed, May 3, 2023 at 12:42 PM Michal Prívozník <mprivozn(a)redhat.com > <mailto:mprivozn@redhat.com>> wrote: > > On 4/30/23 20:29, Simon Fairweather wrote: > > Hi Michal > > > > Are there plans to implement snapshot create_as version of the > > following function where XML could be passed? > > Honestly, there are no plans for libvirt-php. I maintain it in my spare > time and implement features as somebody requests them. Let me implement > it. And also fix the issue you've filled earlier this week. > > Michal > Posted as: https://gitlab.com/libvirt/libvirt-php/-/merge_requests/39 Michal

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Windows Guest on KVM running "single core" after windows update
by Benjammin2068 11 May '23

11 May '23

Hey all, I have a Windows 10 pro (64bit) long time running as a libvirt/KVM guest that I think Windows Update finally narfed. The hardware is a supermicro motherboard with dual Intel E5-2640 CPUs for a total of 40 threads and 64GB The guest is allocated 2sockets, 5cores, 2 threads and 32GB of RAM. (I've also tried 1 socket, 20 cores, 1 thread and 1s10c2t -- no help) In an SSH session to the linux host (CentOS7 - up to date), htop shows 1 core pegged and abnormal distribution of load (like it used to) even with fun little tools in Windows like the PowerToy -> CPUStress64.exe (i.e. the head CPU will show 90-99% and next thread in HTOP will show like 10% which then trails off to like 5%) Even if I tell CPUStress64.exe to load up 10 or 15 threads worth of 100%. Has anyone else seen this? Thanks, -Ben

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how to get domain name into the logs - ?
by lejeczek 09 May '23

09 May '23

Hi guys. I have libvirt/qemu setup with pretty vanilla settings and my logs, a snippet, look like this: ... migration successfully aborted internal error: qemu unexpectedly closed the monitor: 2023-05-08T07:56:37.785886Z qemu-kvm: Failed to load virtio_pci/modern_queue_state:desc 2023-05-08T07:56:37.786024Z qemu-kvm: Failed to load virtio_pci/modern_state:vqs 2023-05-08T07:56:37.786029Z qemu-kvm: Failed to load virtio/extra_state:extra_state 2023-05-08T07:56:37.786033Z qemu-kvm: Failed to load virtio-rng:virtio 2023-05-08T07:56:37.786036Z qemu-kvm: error while loading state for instance 0x0 of device '0000:00:02.5:00.0/virtio-rng' 2023-05-08T07:56:37.786279Z qemu-kvm: load of migration failed: Input/output error Would you know how to make libvirt/qemu to get domains/guests names into the logs? (ideally without going into debug/similar level) many thanks, L.

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Using pki/ssl/tls connection.
by Kamil Jońca 04 May '23

04 May '23

I am thinking of using tls connection between my client and server instead of current ssh. I found https://libvirt.org/kbase/tlscerts.html and I want to know if it is possible to customise some setting (e.g. use my own cert names, or locations) but I was not able to. Moreover https://github.com/libvirt/libvirt/blob/44520f6e01580d6bada88b47e5b77e6bee0… suggests that these values are hardcoded. So my questions are: is it possible to customise these values? If so, how? How can I configure virt-manager with two connections, each with different CA? KJ -- http://stopstopnop.pl/stop_stopnop.pl_o_nas.html

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PHP API
by Simon Fairweather 03 May '23

03 May '23

Hi Michal Are there plans to implement snapshot create_as version of the following function where XML could be passed? https://github.com/libvirt/libvirt-php/blob/afe404b2cf4bb46cdd39c6ea4df1c7c… Regards Simon.

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UEFI and External Snapshots
by Simon Fairweather 28 Apr '23

28 Apr '23

Is there a plan to support UEFI and Ext Snaps? Or is there a location for documentation as the info I can find is quite old.

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seclabel & fuse
by lejeczek 24 Apr '23

24 Apr '23

Hi guys. Wtih images stored on fuse-mounded storage - does it make sense to try 'seclabel', does it even work? Are there any other techniques which would help to add that/similar layer of security when fuse is used? many thanks, L.

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ecrypting image file breaks efi/boot of the guest/Ubuntu - ?
by lejeczek 21 Apr '23

21 Apr '23

Hi guys. I've have a guest and that guest differs from all other guest by: <os> <type arch='x86_64' machine='pc-q35-rhel9.0.0'>hvm</type> <loader readonly='yes' secure='yes' type='pflash'>/usr/share/edk2/ovmf/OVMF_CODE.secboot.fd</loader> <nvram>/var/lib/libvirt/qemu/nvram/ubusrv1_VARS.fd</nvram> <boot dev='hd'/> <bootmenu enable='yes'/> </os> whereas everything else has: <os> <type arch='x86_64' machine='pc-q35-rhel9.0.0'>hvm</type> <boot dev='hd'/> <boot dev='cdrom'/> <bootmenu enable='yes'/> </os> Now, that different guest fails - as the only one - to start, to boot after its qcow2 image was luks-encrypted. Guest starts but says that: BdsDxe: failed to load Boot0001 "Uefi Misc Device" from PciRoot (0x0)/Pci(0x2,0x3)/Pci(0x0,0x0): Not found revert back to original, non-encrypted qcow2 image and all works a ok. All and any thoughts shared are much appreciated. many thanks, L.

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which daemon/service for live migration - ?
by lejeczek 19 Apr '23

19 Apr '23

Hi guys. With this relatively new modular approach in libvirt - which service is needed in order to migrate guests via tcp? many thanks, L.

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