Re: [Users] [libvirt] Host local_host running without virtualization hardware acceleration

On Tue, Nov 05, 2013 at 09:08:33AM +0100, Sandro Bonazzola wrote: > Hi, > I had to reinstall ovirt yesterday and now it seems that it doesn't work anymore. > I'm running nightly on Fedora 18. > kernel-3.11.4-101.fc18.x86_64 > sanlock-2.8-1.fc18.x86_64 > libvirt-1.1.4-1.fc18.x86_64 > qemu-1.5.1-1.fc18.x86_64 > vdsm-4.13.0-93.gitea8c8f0.fc18.x86_64 > ovirt-engine-3.4.0-0.2.master.20131104192919.git3b65870.fc18.noarch > > engine-setup with all-in-one detects hardware virtualization and allow me to configure the system. > (it fails detecting engine health status due probably to recent changes in its URL, I'm already looking into it) > > Once added localhost to the engine, it has been moved to non operational mode saying > I don't have virtualization hardware acceleration anymore. > > I've found that: > > # modinfo kvm > filename: /lib/modules/3.11.4-101.fc18.x86_64/kernel/arch/x86/kvm/kvm.ko > license: GPL > author: Qumranet > depends: > intree: Y > vermagic: 3.11.4-101.fc18.x86_64 SMP mod_unload > parm: min_timer_period_us:uint > parm: ignore_msrs:bool > parm: tsc_tolerance_ppm:uint > parm: allow_unsafe_assigned_interrupts:Enable device assignment on platforms without interrupt remapping support. (bool) > This is good, but AFAIK this module is not what provides /dev/kvm. Depending on the processor you're using, try checking 'kvm_intel' or 'kvm_amd'. Also make sure both are loaded.

> # /usr/bin/qemu-kvm > Could not access KVM kernel module: No such file or directory > failed to initialize KVM: No such file or directory > > looking at strace: > open("/dev/kvm", O_RDWR|O_CLOEXEC) = -1 ENOENT (No such file or directory) > What does ls -lZ /dev/kvm tell you?

> Any clue on what may be happened? > No idea, but I'm basing everything on the fact that it worked before the re-install, am I right?

Martin