I have been curious as to why as mentioned in the thread virt_type=kvm, but os-hypervisors API call states QEMU.
Interestingly this command mentioned (which works on Ubuntu) gives me a FAIL and WARN on my home test setup that runs on physical H/W. $ virt-host-validate QEMU: Checking for hardware virtualization : PASS QEMU: Checking for device /dev/kvm : FAIL (Check that the 'kvm-intel' or 'kvm-amd' modules are loaded & the BIOS has enabled virtualization) QEMU: Checking for device /dev/vhost-net : WARN (Load the 'vhost_net' module to improve performance of virtio networking) QEMU: Checking for device /dev/net/tun : PASS LXC: Checking for Linux >= 2.6.26 : PASS Ronald Bradford Web Site: http://ronaldbradford.com LinkedIn: http://www.linkedin.com/in/ronaldbradford Twitter: @RonaldBradford <http://twitter.com/ronaldbradford> Skype: RonaldBradford GTalk: Ronald.Bradford IRC: rbradfor On Wed, May 11, 2016 at 12:18 PM, Maish Saidel-Keesing <mais...@maishsk.com> wrote: > Which still brings me back to the original point. > > Is this a bug - and should it be reported as such? > > > > On 11/05/16 18:51, Kashyap Chamarthy wrote: > > On Tue, May 03, 2016 at 02:27:00PM -0500, Sergio Cuellar Valdes wrote: > > [...] > > > I'm confused too about the use of KVM or QEMU In the computes the > file/etc/nova/nova-compute.conf has: > > virt_type=kvm > > The output of: > > nova hypervisor-show <id> | grep hypervisor_type > > is: > > hypervisor_type | QEMU > > As Dan noted in his response, it's because it is reporting the libvirt driver > name (which is reported as QEMU). > > Refer below if you want to double-confirm if your instances are using KVM. > > > The virsh dumpxml of the instances shows: > > <domain type='kvm' id='44'> > > That means, yes, you using KVM. You can confirm that by checking your QEMU > command-line of the Nova instance, you'll see something like "accel=kvm": > > # This is on Fedora 23 system > $ ps -ef | grep -i qemu-system-x86_64 > [...] /usr/bin/qemu-system-x86_64 -machine accel=kvm [...] > > > .... > <emulator>/usr/bin/qemu-system-x86_64</emulator> > > But according to this document [1], it is using QEMU emulator instead of > KVM, because it is not using /usr/bin/qemu-kvm > > > So I really don't know if it's using KVM or QEMU. > > As noted above, a sure-fire way to know is to see if the instance's QEMU > command-line has "accel=kvm". > > A related useful tool is `virt-host-validate` (which is part of libvirt-client > package, at least on Fedora-based systems): > > $ virt-host-validate | egrep -i 'kvm' > QEMU: Checking if device /dev/kvm exists > : PASS > QEMU: Checking if device /dev/kvm is accessible > : PASS > > > > [1] https://libvirt.org/drvqemu.html > > > -- > Best Regards, > Maish Saidel-Keesing > > _______________________________________________ > OpenStack-operators mailing list > OpenStack-operators@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > >
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