- Users - libvirt List Archives

KVM Virtual Machine Network - Guest-guest/VM-VM only network (no host/hypervisor access, no outbound connectivity)
by Eduardo Lúcio Amorim Costa 14 Jun '21

14 Jun '21

I know that with the *virsh* command I can create several types of networks (a "NAT network", for example) as we can see in these URLs... KVM network management <https://programmersought.com/article/52213715009/> KVM default NAT-based networking <https://www.ibm.com/downloads/cas/ZVJGQX8E> (page 33) *QUESTION:* How can I create a network (*lan_n*) where only guests/VMs have connectivity, with no outbound connectivity and no host/hypervisor connectivity? *NOTE:* The connectivity to other resources will be provided by a *pfSense* firewall server that will have access to another network (*wan_n*) with outbound connectivity and other resources. Network layout... [N]wan_n ↕ [I]wan_n [V]pfsense_vm [I]lan_n ↕ [N]lan_n ↕ ............................. ↕ ↕ ↕ [V]some_vm_0 [V]some_vm_1 [V]some_vm_4 [V]some_vm_2 [V]some_vm_5 [V]some_vm_3 _ [N] - Network; _ [I] - Network Interface; _ [V] - Virtual Machine. *Thanks! =D* *ORIGINAL QUESTION: *https://serverfault.com/q/1066478/276753 <https://programmersought.com/article/52213715009/> -- *Eduardo Lúcio* Tecnologia, Desenvolvimento e Software Livre LightBase Consultoria em Software Público eduardo.lucio(a)lightbase.com.br <eduardo.lucio(a)LightBase.com.br> *+55-61-3347-1949* - http://brlight.org <eduardo.lucio(a)LightBase.com.br> - *Brasil-DF* *Software livre! Abrace essa idéia!* *"Aqueles que negam liberdade aos outros não a merecem para si mesmos."* *Abraham Lincoln*

2 1

the SSL cert of libvirt.org is outdated
by 伍翀 14 Jun '21

14 Jun '21

hi, there, the SSL cert of libvirt.org is outdated, could anyone replace it as new one?

2 2

Re: interface qos conflicts with ovs
by Michal Prívozník 11 Jun '21

11 Jun '21

[please keep the list CC'ed] On 6/11/21 4:42 PM, Jiatong Shen wrote: > ah, OK. we are hitting this one when transfering to neutron ovs firewall > and would like to fix > it before moving to production.. does this bug still exist? If yes, can we > take it and try > submitting a fix? Thank you. Sure you can! I'm happy to review patches. Michal

1 0

interface qos conflicts with ovs
by Jiatong Shen 11 Jun '21

11 Jun '21

Hello community, We found a strange situation where interface qos is being cleared up. After some search, looks like ovs will clear tc setting at least on ingress. related code is https://github.com/openvswitch/ovs/blob/91cb55bc8aad7fe17060778482dc7ad18dc… so I would like to know if it is more ideal to set ovs port qos and replace current tc when ovs port is used? thank you -- Best Regards, Jiatong Shen

2 1

lxcContainerMountFSBind - Failed to bind mount directory
by Priyanka Gupta 10 Jun '21

10 Jun '21

Hi Everyone, I am looking to understand this piece of code and error. 2021-06-09 06:52:55.548+0000: 1: debug : lxcContainerMountAllFS:1612 : Mounting all non-root filesystems 2021-06-09 06:52:55.548+0000: 1: debug : lxcContainerMountAllFS:1619 : Mounting '/bootflash/SHARED-IOX' -> '/bootflash/SHARED-IOX' 2021-06-09 06:52:55.548+0000: 1: debug : lxcContainerResolveSymlinks:630 : Resolving '/bootflash/SHARED-IOX' 2021-06-09 06:52:55.548+0000: 1: debug : lxcContainerResolveSymlinks:646 : Resolved '/bootflash/SHARED-IOX' to /bootflash/SHARED-IOX 2021-06-09 06:52:55.548+0000: 1: debug : lxcContainerMountFSBind:1176 : src=/bootflash/SHARED-IOX dst=/bootflash/SHARED-IOX 2021-06-09 06:52:55.548+0000: 1: error : lxcContainerMountFSBind:1223 : Failed to bind mount directory /.oldroot/bootflash/SHARED-IOX to /bootflash/SHARED-IOX: No such file or directory I am on Libvirt 5.5.0 Any pointers? Thanks Priyanka

2 1

why cannot connect to libvirtd using virsh ???
by tommy 10 Jun '21

10 Jun '21

[root@test2 ~]# virsh -c quem+ssh://root@192.168.10.175/system root(a)192.168.10.175's <mailto:root@192.168.10.175's> password: error: failed to connect to the hypervisor error: no connection driver available for quem:///system But, on the same terminal using virt-manager to connect to 192.168.10.175 is successful. Why ?

3 3

virtiofs mounted filesystems & SELinux
by Link Dupont 07 Jun '21

07 Jun '21

I am mounting a filesystem into a domain using the virtiofs driver. <filesystem accessmode="passthrough" type="mount"> <source dir="/home"/> <target dir="/home"/> <driver type="virtiofs"/> </filesystem> Both my host (Fedora 34) and guest (CentOS 8.4) are running with SELinux enforcing. From my host, I can see that the SELinux context type is set to user_home_dir_t. $ ls -ldZ /home/link drwxr-xr-x. 61 link link system_u:object_r:user_home_dir_t:s0 8192 May 21 12:41 /home/link >From within the guest however, the volume is unlabeled_t $ ls -lZd /home/link drwxr-xr-x. 61 link link system_u:object_r:unlabeled_t:s0 8192 May 21 12:53 / home/link Is there a way to pass the SELinux context through to the guest? Or mount the volume with the correct options to map SELinux contexts?

6 12

Re: How to hot plugin a new vhost-user-blk-pci device to running VM?
by 梁朝军 05 Jun '21

05 Jun '21

Thanks all of you for your help. One more question regarding vhost-user-blk-pci type device, how to identify a vhost-blk disk in QEUM VM ? for example, disk name looks like vda,vdb,..., but that some application in VM want to detect that a certain entry is really the device it is waiting for. Specific for windows , they always show as disk 0, 1, 2….etc Is there any way to identify those disk with each other in VM? thanks > 在 2021年5月17日，下午3:13，Michal Prívozník <mprivozn(a)redhat.com> 写道： > > On 5/17/21 7:08 AM, Liang Chaojun wrote: >> >> Thanks Michal and Peter for your response. I‘ m running it on qemu 5.1 build by myself. BTW, follow Peter’s suggestion, where I can get the latest rpms if I want to upgrade to Libvirt 7.1? As I know it seems need more than twenty related rpms not include dependency. > > Well, since you're building qemu yourself you could also build libvirt. > Just be aware that the v7.3.0 release was the last one that supports > RHEL-7. Newer releases might still work, but upstream does not aim to > make everything work. > > https://libvirt.org/platforms.html > > Michal >

4 5

Re: error when building from git checkout
by Andrea Bolognani 04 Jun '21

04 Jun '21

[re-adding libvirt-users] On Fri, Jun 04, 2021 at 04:49:49PM +0800, Jiatong Shen wrote: > Thank you very much for the reply. after applying this ps, the error is > gone. Glad to hear that! I've sent the patch to the mailing list now :) > also curious to know if there is a way to skip building docs? thank you. Passing -Ddocs=disabled to Meson should do the trick. -- Andrea Bolognani / Red Hat / Virtualization

2 1

error when building from git checkout
by Jiatong Shen 04 Jun '21

04 Jun '21

Hello community, I am trying to compile libvirt from source but being trapped with following error message when running ninja -C build ninja -C build ninja: Entering directory `build' [1/12] Generating virkeyname-osx.html with a meson_exe.py custom command FAILED: docs/manpages/virkeyname-osx.html /home/sjt/.local/bin/meson --internal exe --capture docs/manpages/virkeyname-osx.html -- /usr/bin/xsltproc --stringparam pagesrc docs/manpages/virkeyname-osx.rst --stringparam builddir /home/sjt/src/c/libvirt/build --stringparam timestamp 'Thu Jun 3 23:11:25 2021 UTC' --nonet ../docs/subsite.xsl docs/manpages/virkeyname-osx.html.in docs/manpages/virkeyname-osx.html.in:17: parser error : Double hyphen within comment: <!-- This file is auto-generated from keymaps.csv Data keymap-gen --lang=rst --title=virkeyname-osx --subtitle=Key name values for os ^ docs/manpages/virkeyname-osx.html.in:17: parser error : Double hyphen within comment: <!-- This file is auto-generated from keymaps.csv Data keymap-gen --lang=rst --title=virkeyname-osx --subtitle=Key name values for os ^ docs/manpages/virkeyname-osx.html.in:17: parser error : Double hyphen within comment: <!-- This file is auto-generated from keymaps.csv Data keymap-gen --lang=rst --title=virkeyname-osx --subtitle=Key name values for os ^ unable to parse docs/manpages/virkeyname-osx.html.in [2/12] Generating virkeycode-usb.html with a meson_exe.py custom command FAILED: docs/manpages/virkeycode-usb.html /home/sjt/.local/bin/meson --internal exe --capture docs/manpages/virkeycode-usb.html -- /usr/bin/xsltproc --stringparam pagesrc docs/manpages/virkeycode-usb.rst --stringparam builddir /home/sjt/src/c/libvirt/build --stringparam timestamp 'Thu Jun 3 23:11:25 2021 UTC' --nonet ../docs/subsite.xsl docs/manpages/virkeycode-usb.html.in docs/manpages/virkeycode-usb.html.in:17: parser error : Double hyphen within comment: <!-- This file is auto-generated from keymaps.csv Data keymap-gen --lang=rst --title=virkeycode-usb --subtitle=Key code values for us ^ docs/manpages/virkeycode-usb.html.in:17: parser error : Double hyphen within comment: <!-- This file is auto-generated from keymaps.csv Data keymap-gen --lang=rst --title=virkeycode-usb --subtitle=Key code values for us ^ docs/manpages/virkeycode-usb.html.in:17: parser error : Double hyphen within comment: <!-- This file is auto-generated from keymaps.csv Data keymap-gen --lang=rst --title=virkeycode-usb --subtitle=Key code values for us ^ unable to parse docs/manpages/virkeycode-usb.html.in [3/12] Generating virkeycode-atset1.html with a meson_exe.py custom command FAILED: docs/manpages/virkeycode-atset1.html /home/sjt/.local/bin/meson --internal exe --capture docs/manpages/virkeycode-atset1.html -- /usr/bin/xsltproc --stringparam pagesrc docs/manpages/virkeycode-atset1.rst --stringparam builddir /home/sjt/src/c/libvirt/build --stringparam timestamp 'Thu Jun 3 23:11:25 2021 UTC' --nonet ../docs/subsite.xsl docs/manpages/ virkeycode-atset1.html.in docs/manpages/virkeycode-atset1.html.in:17: parser error : Double hyphen within comment: <!-- This file is auto-generated from keymaps.csv Data keymap-gen --lang=rst --title=virkeycode-atset1 --subtitle=Key code values for ^ docs/manpages/virkeycode-atset1.html.in:17: parser error : Double hyphen within comment: <!-- This file is auto-generated from keymaps.csv Data keymap-gen --lang=rst --title=virkeycode-atset1 --subtitle=Key code values for ^ docs/manpages/virkeycode-atset1.html.in:17: parser error : Double hyphen within comment: <!-- This file is auto-generated from keymaps.csv Data keymap-gen --lang=rst --title=virkeycode-atset1 --subtitle=Key code values for ^ unable to parse docs/manpages/virkeycode-atset1.html.in [4/12] Generating virkeycode-xtkbd.html with a meson_exe.py custom command FAILED: docs/manpages/virkeycode-xtkbd.html any advice on how to fix it? thank you very much -- Best Regards, Jiatong Shen

2 1