On Tue, Aug 22, 2023 at 06:22:25PM +0200, Mario Marietto wrote: > In your opinion should I remove virt-manager and all its dependencies > before launching the recompilation ? I would say there is no need to do that if you install libvirt to /usr/local as it should be separated from the libvirt installed by package manager. Pavel > > On Tue, Aug 22, 2023 at 6:05 PM Pavel Hrdina <phrdina@xxxxxxxxxx> wrote: > > > On Tue, Aug 22, 2023 at 05:55:30PM +0200, Mario Marietto wrote: > > > I have installed virt-manager and all its dependencies grabbing the files > > > from the devuan 5 repository. > > > To recompile libvirt I need to acquire some basic information. Which > > > version should I compile ? Where is the source code located ? Do you have > > > some tutorial that explains the necessary steps to do it ? thanks. > > > > Everything can be found at https://libvirt.org/ not sure which version > > to pick, you can try latest upstream version but there might be some > > dependencies missing in Devuan, if that happens you can fallback to > > version that is provided by Devuan. > > > > For example this link has basic info on how to compile libvirt > > https://libvirt.org/compiling.html and here you can find sources > > to libvirt https://libvirt.org/downloads.html . > > > > Pavel > > > > > On Tue, Aug 22, 2023 at 5:50 PM Pavel Hrdina <phrdina@xxxxxxxxxx> wrote: > > > > > > > On Tue, Aug 22, 2023 at 05:28:50PM +0200, Mario Marietto wrote: > > > > > root@devuan:~# virsh domcapabilities --machine virt --emulatorbin > > > > > /usr/bin/qemu-system-arm > > > > > > > > > > error: failed to get emulator capabilities > > > > > error: KVM is not supported on this platform: Function not > > implemented > > > > > > > > > > BUT it's not true : > > > > > > > > > > root@devuan:~# kvm-ok > > > > > > > > > > INFO: /dev/kvm exists > > > > > KVM acceleration can be used > > > > > > > > Are you using libvirt installed using package manager or some libvirt > > > > that you compiled yorself? Checking libvirt code this error only > > happens > > > > if libvirt was compiled without KVM, more specifically if header > > > > `/usr/include/linux/kvm.h` doesn't exists. > > > > > > > > I was not able to find any details on Devuan distro so not sure how > > > > the libvirt package is compiled. You might need to try compiling > > libvirt > > > > yourself. > > > > > > > > Pavel > > > > > > > > > > > > > > On Tue, Aug 22, 2023 at 5:27 PM Mario Marietto < > > marietto2008@xxxxxxxxx> > > > > > wrote: > > > > > > > > > > > Oh sorry.... > > > > > > > > > > > > On Tue, Aug 22, 2023 at 5:26 PM Mario Marietto < > > marietto2008@xxxxxxxxx > > > > > > > > > > > wrote: > > > > > > > > > > > >> virsh domcapabilities --machine virt --emulatorbin > > > > > >> /path/to/qemu-system-arm > > > > > >> > > > > > >> error: failed to get emulator capabilities > > > > > >> error: Cannot check QEMU binary /path/to/qemu-system-arm: No such > > > > file or > > > > > >> directory > > > > > >> > > > > > >> On Tue, Aug 22, 2023 at 4:49 PM Pavel Hrdina <phrdina@xxxxxxxxxx> > > > > wrote: > > > > > >> > > > > > >>> On Tue, Aug 22, 2023 at 04:05:09PM +0200, Mario Marietto wrote: > > > > > >>> > Where does libvirt want to find those files ? since the qemu > > 5.1 > > > > > >>> > installation files have been placed under /usr/local during the > > > > command > > > > > >>> > make install,I have also copied the firmware files in : > > > > > >>> > > > > > > >>> > ls /usr/local/share/AAVMF > > > > > >>> > > > > > > >>> > AAVMF32_CODE.fd AAVMF_CODE.fd AAVMF_CODE.snakeoil.fd > > > > > >>> AAVMF_VARS.ms.fd > > > > > >>> > AAVMF32_VARS.fd AAVMF_CODE.ms.fd AAVMF_VARS.fd > > > > > >>> > AAVMF_VARS.snakeoil.fd > > > > > >>> > > > > > > >>> > but they aren't still recognized. > > > > > >>> > > > > > >>> Downgrading libvirt would not help in this specific case. Since > > > > version > > > > > >>> 5.2.0 libvirt uses firmware auto-selection. Libvirt is looking > > for > > > > json > > > > > >>> files describing available firmwares. It is documented in QEMU > > > > project > > > > > >>> git repository in `docs/interop/firmware.json`, this specific > > section > > > > > >>> describes where the json files should be placed: > > > > > >>> > > > > > >>> # It is recommended to create firmware JSON files (each > > containing a > > > > > >>> # single @Firmware root element) with a double-digit prefix, for > > > > example > > > > > >>> # "50-ovmf.json", "50-seabios-256k.json", etc, so they can be > > sorted > > > > in > > > > > >>> # predictable order. The firmware JSON files should be searched > > for > > > > in > > > > > >>> # three directories: > > > > > >>> # > > > > > >>> # - /usr/share/qemu/firmware -- populated by distro-provided > > > > firmware > > > > > >>> # packages (XDG_DATA_DIRS covers > > > > > >>> # /usr/share by default), > > > > > >>> # > > > > > >>> # - /etc/qemu/firmware -- exclusively for sysadmins' local > > > > additions, > > > > > >>> # > > > > > >>> # - $XDG_CONFIG_HOME/qemu/firmware -- exclusively for per-user > > > > local > > > > > >>> # additions > > (XDG_CONFIG_HOME > > > > > >>> # defaults to > > $HOME/.config). > > > > > >>> > > > > > >>> It doesn't matter where the *CODE* and *VARS* firmware files are > > > > placed > > > > > >>> if the path to these files is correct in the json files in one > > of the > > > > > >>> three directories. > > > > > >>> > > > > > >>> Looking at the qemu-efi-arm package it should install > > > > > >>> > > > > > >>> /usr/share/AAVMF/AAVMF32_CODE.fd > > > > > >>> /usr/share/AAVMF/AAVMF32_VARS.fd > > > > > >>> /usr/share/qemu/firmware/60-edk2-arm.json > > > > > >>> > > > > > >>> and that should be picked up correctly by libvirt. > > > > > >>> > > > > > >>> > > > > > >>> I don't know what machine types are available for 32bit ARM, but > > you > > > > > >>> should be able to figure that out by running: > > > > > >>> > > > > > >>> virsh capabilities | grep canonical > > > > > >>> > > > > > >>> it will show only lines with machine types, but my guess is on > > arm > > > > there > > > > > >>> should be 'virt' machine type so running > > > > > >>> > > > > > >>> virsh domcapabilities --machine virt --emulatorbin > > > > > >>> /path/to/qemu-system-arm > > > > > >>> > > > > > >>> where you should be able to see the firmware paths if they are > > > > correctly > > > > > >>> detected by libvirt. > > > > > >>> > > > > > >>> Pavel > > > > > >>> > > > > > >>> > > > > > >>> > On Tue, Aug 22, 2023 at 3:55 PM Mario Marietto < > > > > marietto2008@xxxxxxxxx > > > > > >>> > > > > > > >>> > wrote: > > > > > >>> > > > > > > >>> > > I've already did that : > > > > > >>> > > > > > > > >>> > > # apt install qemu-efi-arm > > > > > >>> > > > > > > > >>> > > Reading package lists... Done > > > > > >>> > > Building dependency tree... Done > > > > > >>> > > Reading state information... Done > > > > > >>> > > qemu-efi-arm is already the newest version (2022.11-6). > > > > > >>> > > qemu-efi-arm set to manually installed. > > > > > >>> > > > > > > > >>> > > if I don't get wrong,that package do the installation of the > > > > > >>> following > > > > > >>> > > files : > > > > > >>> > > > > > > > >>> > > root@devuan:/usr/share/AAVMF# ls > > > > > >>> > > > > > > > >>> > > AAVMF32_CODE.fd AAVMF_CODE.fd AAVMF_CODE.snakeoil.fd > > > > > >>> > > AAVMF_VARS.ms.fd > > > > > >>> > > AAVMF32_VARS.fd AAVMF_CODE.ms.fd AAVMF_VARS.fd > > > > > >>> > > AAVMF_VARS.snakeoil.fd > > > > > >>> > > > > > > > >>> > > in my case they have been correctly placed under > > /usr/share/AAVMF > > > > > >>> > > > > > > > >>> > > I'm not sure that the problem is there. The error message > > talks > > > > > >>> about the > > > > > >>> > > libvirt version that could be wrong. What about if I > > retrocede > > > > > >>> libirt 7.0 > > > > > >>> > > to 6.9 for example. Why 6.9 ? > > > > > >>> > > > > > > > >>> > > > > > > > >>> > > As you can read below,it supports qemu 5.0 and newer... > > > > > >>> > > > > > > > >>> > > v6.9.0 (2020-11-02) > > > > > >>> > > > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > *New features* > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > nodedev: Add support for channel subsystem (CSS) > > devices on > > > > > >>> S390 > > > > > >>> > > > > > > > >>> > > A CSS device is represented as a parent device of a CCW > > > > device. > > > > > >>> > > This support allows to create vfio-ccw mediated devices > > > > with > > > > > >>> > > virNodeDeviceCreateXML(). > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > qemu: Implement memory failure event > > > > > >>> > > > > > > > >>> > > New event is implemented that is emitted whenever a > > guest > > > > > >>> > > encounters a memory failure. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > qemu: Implement support for <transient/> disks > > > > > >>> > > > > > > > >>> > > VMs based on the QEMU hypervisor now can use > > <transient/> > > > > > >>> option > > > > > >>> > > for local file-backed disks to configure a disk which > > > > discards > > > > > >>> changes made > > > > > >>> > > to it while the VM was active. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > hyperv: implement new APIs > > > > > >>> > > > > > > > >>> > > The virConnectGetCapabilities(), > > virConnectGetMaxVcpus(), > > > > > >>> > > virConnectGetVersion(), virDomainGetAutostart(), > > > > > >>> > > virDomainSetAutostart(), virNodeGetFreeMemory(), > > > > > >>> virDomainReboot(), > > > > > >>> > > virDomainReset(), virDomainShutdown(), and > > > > > >>> virDomainShutdownFlags() > > > > > >>> > > APIs have been implemented in the Hyper-V driver. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > bhyve: implement virtio-9p filesystem support > > > > > >>> > > > > > > > >>> > > Implement virito-9p shared filesystem using the > > > > <filesystem/> > > > > > >>> > > element. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > qemu: Add support for vDPA network devices. > > > > > >>> > > > > > > > >>> > > VMs using the QEMU hypervisor can now specify vDPA > > network > > > > > >>> devices > > > > > >>> > > using <interface type='vdpa'>. The node device APIs > > also > > > > now > > > > > >>> list > > > > > >>> > > and provide XML descriptions for vDPA devices. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > cpu_map: Add EPYC-Rome CPU model > > > > > >>> > > > > > > > >>> > > *It's supported in QEMU 5.0.0 and newer.* > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > cpu: Add a flag for XML validation in CPU comparison > > > > > >>> > > > > > > > >>> > > The virConnectCompareCPU and > > virConnectCompareHypervisorCPU > > > > > >>> API now > > > > > >>> > > support the VIR_CONNECT_COMPARE_CPU_VALIDATE_XML flag, > > > > which > > > > > >>> > > enables XML validation. For virsh, this feature is > > enabled > > > > by > > > > > >>> passing the > > > > > >>> > > --validate option to the cpu-compare and > > > > hypervisor-cpu-compare > > > > > >>> > > subcommands. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > qemu: Introduce virtio-balloon free page reporting > > feature > > > > > >>> > > > > > > > >>> > > Introduce the optional attribute free-page-reporting > > for > > > > virtio > > > > > >>> > > memballoon device. It enables/disables the ability of > > the > > > > QEMU > > > > > >>> virtio > > > > > >>> > > memory balloon to return unused pages back to the > > > > hypervisor. > > > > > >>> QEMU 5.1 and > > > > > >>> > > newer support this feature. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > *Improvements* > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > qemu: Make 'cbitpos' & 'reducedPhysBits' attrs optional > > > > > >>> > > > > > > > >>> > > Libvirt probes the underlying platform in order to > > fill in > > > > > >>> these > > > > > >>> > > SEV attributes automatically before launching a guest. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > util: support device stats collection for SR-IOV VF > > hostdev > > > > > >>> > > > > > > > >>> > > For SR-IOV VF hostdevs, libvirt now supports retrieving > > > > device > > > > > >>> > > traffic stats via the virDomainInterfaceStats API and > > virsh > > > > > >>> > > domifstat. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > logging: Allow disabling log rollover > > > > > >>> > > > > > > > >>> > > Set max_len=0 in virtlogd.conf to disable log rollover. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > qemu: Set noqueue qdisc for TAP devices > > > > > >>> > > > > > > > >>> > > Set noqueue instead of the former pfifo_fast queue > > > > discipline > > > > > >>> for > > > > > >>> > > TAP devices. It will avoid needless cost of host CPU > > cycles > > > > > >>> and thus > > > > > >>> > > improve performance. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > qemu: virtiofs can be used without NUMA nodes > > > > > >>> > > > > > > > >>> > > Virtiofs is supported for the VM without NUMA nodes but > > > > > >>> configured > > > > > >>> > > with shared memory. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > *Bug fixes* > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > hyperv: ensure WQL queries work in all locales > > > > > >>> > > > > > > > >>> > > Relying on the "Description" field caused queries to > > fail > > > > on > > > > > >>> > > non-"en-US" systems. The queries have been updated to > > avoid > > > > > >>> using localized > > > > > >>> > > strings. > > > > > >>> > > - > > > > > >>> > > > > > > > >>> > > rpc: Fix virt-ssh-helper detection > > > > > >>> > > > > > > > >>> > > libvirt 6.8.0 failed to correctly detect the > > availability > > > > of > > > > > >>> the > > > > > >>> > > new virt-ssh-helper command on the remote host, and > > thus > > > > always > > > > > >>> > > used the fallback instead; this has now been fixed. > > > > > >>> > > > > > > > >>> > > > > > > > >>> > > What do you think ? Can you share some documentation about > > how to > > > > > >>> > > recompile an older version of libvirt from source code ? > > thanks. > > > > > >>> > > > > > > > >>> > > On Tue, Aug 22, 2023 at 3:35 PM Pavel Hrdina < > > phrdina@xxxxxxxxxx > > > > > > > > > > >>> wrote: > > > > > >>> > > > > > > > >>> > >> On Tue, Aug 22, 2023 at 02:49:05PM +0200, Mario Marietto > > wrote: > > > > > >>> > >> > Hello to everyone. > > > > > >>> > >> > > > > > > >>> > >> > I'm trying to use qemu 5.1 with virt-manager and libvirt > > on > > > > my ARM > > > > > >>> > >> > chromebook (armhf 32 bit cpu) running with Devuan 4 as > > host > > > > o.s. > > > > > >>> > >> > > > > > > >>> > >> > By default it uses qemu and its dependencies,version 5.2. > > I > > > > > >>> remember > > > > > >>> > >> that I > > > > > >>> > >> > can't use qemu 5.2,because it doesn't have any support for > > > > KVM as > > > > > >>> you > > > > > >>> > >> can > > > > > >>> > >> > read here : > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > > https://lists.gnu.org/archive/html/qemu-devel/2020-09/msg02074.html > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > For this reason,I've compiled qemu 5.1 from source. Below > > I > > > > shown > > > > > >>> how I > > > > > >>> > >> > have configured everything such as a little piece of > > > > compilation > > > > > >>> > >> messages : > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > # apt install libgtk-3-dev libpulse-dev libgbm-dev > > > > > >>> libspice-protocol-dev > > > > > >>> > >> > libspice-server-dev libusb-1.0-0-dev libepoxy-dev > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > # cp /root/Desktop/qemu-v5.1.0/arm-softmmu/qemu-system-arm > > > > > >>> /usr/bin > > > > > >>> > >> > > > > > > >>> > >> > # CFLAGS=-Wno-error ./configure > > --target-list=x86_64-softmmu > > > > > >>> > >> --enable-opengl > > > > > >>> > >> > --enable-gtk --enable-kvm --enable-guest-agent > > --enable-spice > > > > > >>> > >> --audio-drv- > > > > > >>> > >> > list="oss pa" --enable-libusb > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > A little piece of the log messages that I've got from the > > > > > >>> compilation of > > > > > >>> > >> > qemu 5.1 : > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > https://pastebin.ubuntu.com/p/8DYfgPvhXy/ > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > These are the resulting versions of my frankenstein > > operation > > > > : > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > # virsh version > > > > > >>> > >> > > > > > > >>> > >> > Compiled against library: libvirt 7.0.0 > > > > > >>> > >> > Using library: libvirt 7.0.0 > > > > > >>> > >> > Using API: QEMU 7.0.0 > > > > > >>> > >> > Running hypervisor: QEMU 5.1.0 > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > At this point I ran virt-manager. It has been able to > > detect > > > > > >>> qemu,but I > > > > > >>> > >> get > > > > > >>> > >> > the following error : > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > Warning : Failed to set up UEFI. > > > > > >>> > >> > The Libvirt version does not support UEFI. > > > > > >>> > >> > Install options are limited. > > > > > >>> > >> > > > > > > >>> > >> > (I have also tried upgrading devuan 4 with devuan 5 and > > I've > > > > got > > > > > >>> the > > > > > >>> > >> same > > > > > >>> > >> > error : > > > > > >>> > >> > > > > > >>> > >> You most likely need to install qemu-efi-arm package which > > > > should > > > > > >>> > >> provide 32bit arm firmware files. The package name is a bit > > > > > >>> confusing > > > > > >>> > >> as it doesn't originate from qemu project, it is from edk2 > > > > project. > > > > > >>> > >> > > > > > >>> > >> Without this package libvirt most likely doesn't report any > > efi > > > > > >>> files > > > > > >>> > >> and that's what causes the error you are hitting. > > > > > >>> > >> > > > > > >>> > >> Pavel > > > > > >>> > >> > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > root@devuan:/usr/bin# virsh version > > > > > >>> > >> > > > > > > >>> > >> > Compiled against library: libvirt 9.0.0 > > > > > >>> > >> > Using library: libvirt 9.0.0 > > > > > >>> > >> > Using API: QEMU 9.0.0 > > > > > >>> > >> > Running hypervisor: QEMU 5.1.0 > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > If I change qemu-system-arm vers. 5.1 with qemu-system-arm > > > > > >>> 5.2,the error > > > > > >>> > >> > disappears. So,it seems that libvirt does not accept > > > > > >>> qemu-system-arm > > > > > >>> > >> vers. > > > > > >>> > >> > 5.1 or maybe any version lower than 5.2,I don't know. But > > as > > > > I've > > > > > >>> said,I > > > > > >>> > >> > can't use any version of qemu greater or equal to 5.2 on > > my > > > > > >>> setup. And I > > > > > >>> > >> > want to use virt-manager and libvirt because I find these > > > > tools > > > > > >>> very > > > > > >>> > >> > comfortable instead of using the "raw" qemu parameters. Is > > > > there a > > > > > >>> > >> > workaround ? Maybe I can recompile virt-manager and / or > > > > libvirt > > > > > >>> from > > > > > >>> > >> the > > > > > >>> > >> > source code ? but how ? Do you think that it could work > > if I > > > > use > > > > > >>> > >> something > > > > > >>> > >> > like this (if it exists and if it can be reached in some > > way) > > > > : > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > Compiled against library: libvirt 5.0.0 > > > > > >>> > >> > Using library: libvirt 5.0.0 > > > > > >>> > >> > Using API: QEMU 5.0.0 > > > > > >>> > >> > Running hypervisor: QEMU 5.1.0 > > > > > >>> > >> > > > > > > >>> > >> > > > > > > >>> > >> > thanks. > > > > > >>> > >> > > > > > > >>> > >> > -- > > > > > >>> > >> > Mario. > > > > > >>> > >> > > > > > >>> > > > > > > > >>> > > > > > > > >>> > > -- > > > > > >>> > > Mario. > > > > > >>> > > > > > > > >>> > > > > > > >>> > > > > > > >>> > -- > > > > > >>> > Mario. > > > > > >>> > > > > > >> > > > > > >> > > > > > >> -- > > > > > >> Mario. > > > > > >> > > > > > > > > > > > > > > > > > > -- > > > > > > Mario. > > > > > > > > > > > > > > > > > > > > > -- > > > > > Mario. > > > > > > > > > > > > > -- > > > Mario. > > > > > -- > Mario.
Attachment:
signature.asc
Description: PGP signature
