Could not access KVM kernel module (qemu 에러)

어느날 갑자기 아래와 같은 에러 발생

[root@localhost]# qemu

Could not access KVM kernel module: No such file or directory

failed to initialize KVM: No such file or directory

No accelerator found!

CMOS 옵션 - virtualization 옵션 활성화 해주고 부팅하면

[root@115-68-141-10 ~]# lsmod | grep kvm

kvm_amd                59982  0 

kvm                   429349  1 kvm_amd

[root@115-68-141-10 ~]# qemu

Could not initialize SDL(No available video device) - exiting

결론 

Advanced BIOS Features - virtualization [Enabled] 

메인보드 CMOS 옵션에 CPU virtualization 을 활성화 해주면 됨