物理机更换电源之后发现kvm虚拟机启动报错并提示检查BIOS的VT虚拟选项是否启用Check that virtualization is enabled in the host BIOS, and host configuration is setup to load the kvm modules. 只好去机房进BIOS看了下还真没开启,网上说默认是不开启的,估计是断电扣主板电池导致设置丢失了。重新设置之后正常。

报错: 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.

解决:重启物理机,在启动时按F2进入BIOS设置页面查找VirtualizationTechnology或者Virtualization选项设置开启后,按F10保存并退出。