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virtiofs mounted filesystems & SELinux
by Link Dupont 08 Jun '21

08 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?

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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 >

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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

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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

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Error: --boot uefi=RPI_EFI.fd : Did not find any UEFI binary path for arch 'aarch64' emulating raspi3 on jetson nano with virt-install
by Mario Marietto 04 Jun '21

04 Jun '21

Hello. it's more of a challenge,to be able to emulate the raspberry pi 3 on my Jetson nano (aarch64) using virt-install. I'm learning how to do that by reading heavily here : https://github.com/dhruvvyas90/qemu-rpi-kernel I tried to do something like this : virt-install \ --name pi \ --machine raspi3 \ --cpu arm1176 \ --memory 1024 \ --import \ --disk /root/Desktop/zi/Work/Android/Raspy/Debian/2019-09-26-raspbian-buster-lite.img,format=raw,bus=virtio \ --network user,model=virtio \ --video vga \ --graphics spice \ --rng device=/dev/urandom,model=virtio \ --boot 'uefi=RPI_EFI.fd,dtb=bcm2710-rpi-3-b-plus.dtb,kernel=kernel8.img,kernel_args=root=/dev/vda2 rootwait panic=1 dwc_otg.fiq_fsm_enable=0' \ --events on_reboot=destroy But I get this error : ERROR Error: --boot uefi=RPI_EFI.fd,dtb=bcm2710-rpi-3-b-plus.dtb,kernel= kernel8.img,kernel_args=root=/dev/vda2 rootwait panic=1 dwc_otg.fiq_fsm_enable=0: Did not find any UEFI binary path for arch 'aarch64' I've got the UEFI BIOS file from here : https://github.com/andreiw/RaspberryPiPkg/blob/master/Binary/prebuilt/2019J… I'm not sure if it isn't the right efi file to use in this specific configuration or if it is,but I'm passing the parameter badly. What do you suggest me to do ? -- Mario.

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virt viewer for Mac
by Francesc Guasch 04 Jun '21

04 Jun '21

Hi. Please excuse me if this is not the right place to ask. We are using virt viewer happily from Linux, and though the Windows release sometimes has issues it seems it is maintained. There is this Mac client here: https://people.freedesktop.org/~teuf/spice-gtk-osx/ We have been reported it is outdated and somehow buggy. Is there another alternative ? Are there plans to port virt-viewer for Macs ? Thank you.

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how to increase vram in windows guest?
by gansteed 27 May '21

27 May '21

Hello: I'm using kvm to host a windows 7 guest vm, I've install the latest spice guest tools from https://spice-space.org/download/windows/spice-guest-tools/spice-guest-tool…, and I've set video section like this: <video> <model type="qxl" ram="262144" vram="262144" vram64="262144" vgamem="131072" heads="1" primary="yes"/> <alias name="video0"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x0"/> </video> but the graphics in windows guest is laggy, I' found that the guest have only use 16MB as vram: How can I increase the real usage of vram in the windows guest vm?

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Console of P2V?
by Ken D'Ambrosio 25 May '21

25 May '21

Hey, all. For one, apologies if this isn't quite the right list, I tried to get the right one. But, my problem: I'm firing up a Centos 6.5 box with virt-install, recently converted from a physical (I did a 'dd' to a raw image, and converted it to qcow2), and it boots fine, etc., etc., but I can't get to the console except through vnc; "virsh console" just shows a blank screen. Do I need to tell the kernel to boot in ASCII mode or somesuch? Thanks! -Ken

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virHostdevIsPCINodeDeviceUsed
by Simon Fairweather 19 May '21

19 May '21

I am looking to be able to check if a specific PCI device is allocated to a guest. An error is produced if a domain is started and the device is in use within another domain via this function. I cannot see a publicly available function to use to get this information, is there one available or is there another way to check the state of the PCI device. Regards Simon

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How to hot plugin a new vhost-user-blk-pci device to running VM?
by 梁朝军 14 May '21

14 May '21

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