On Fri, Feb 01, 2019 at 04:56:23PM +0200, Hetz Ben Hamo wrote: > Hi, > > I hope I'm asking in the right place. > > First question: I'm using AMD Ryzen 2700 CPU, and the VM's were running > super slow. Checking on the net, most of the docs shows that I should look > at lscpu output which indeed shows that my CPU has SVM. However, it took me > a bit more time to figure out that the kvm_amd module was not loaded > because SVM was disabled in the BIOS, so my question is: Could the VMM team > add a simple check before starting a VM if kvm-intel or kvm_amd modules are > loaded and if not - show a warning message to enable VT-X/SVM on the > BIOS/UEFI please? FWIW, virt-host-validate command line tool should report on this problem, but of course you have to know it exists first, so wouldn't have helped your situation. > Second question: After enabling the SVM in the BIOS and restarting the VMM, > the previously configured VM was still running super-slow. I recreated the > VM and only the new VM was running fast, so I assume that a parameter not > to use the SVM is written in the VM configuration? if so, where can I > change it in the VM configuration GUI? (I thought it was related to the > copy/mode of the CPU, which doesn't change things) Whether to use TCG (emulation) or KVM (hardware acceleration) is in the guest XML configuration. I don't think its changable in the GUI. If you use the command line tool 'virsh edit $GUESTNAME' as root you will see <domain type='qemu'> .... Just change that to 'kvm' instead. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :| _______________________________________________ virt-tools-list mailing list virt-tools-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/virt-tools-list
