openstack-manuals/doc/admin-guide-cloud/source/ts_no_emulator_x86_64.rst

Cannot find suitable emulator for x86_64

Problem

When you attempt to create a VM, the error shows the VM is in the BUILD then ERROR state.

Solution

On the KVM host, run cat /proc/cpuinfo. Make sure the vmx or svm flags are set.

Follow the instructions in the enabling KVM section of the Configuration Reference to enable hardware virtualization support in your BIOS.