error: unsupported configuration: Domain requires KVM, but it is not available. Check that virtualiz

# virsh start D-1
error: Failed to start domain D-1

error: unsupported configuration: Domain requires KVM, but it is not available. Check that virtualization is enabled in the host BIOS, and host configuration is setup to load the kvm modules.

#  cat /proc/cpuinfo |grep vmx

#

# lsmod | grep kvm
kvm                   525259  0 

not found kvm_intel   

eg:

# lsmod | grep kvm
kvm_intel              55464  84 
kvm                   345070  1 kvm_intel

解决方法：

需开启cpu虚拟化