ubuntu kvm虚拟化配置

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环境说明

  • OS: Ubuntu 20.04.4 LTS
  • OS Type： 64-bit
  • 硬件： ThinkPad-X1-Carbon-4th
  • CPU：Intel® Core™ i5-6200U CPU @ 2.30GHz × 4
  • MEM：
  • Graphics：Mesa Intel® HD Graphics 520 (SKL GT2)
  • Disk：

步骤

1. BIOS开启CPU虚拟化

开启

  • 开机之后按下F1键
  • 进入Security选项
  • 进入Virtualization子选项
  • Intel(R) Virtualization Technology 选项修改成 Enable
  • Intel(R) VT-d Feature 选项修改成 Enable

确认

方案一：

执行如下命令，查找到 Virtualization: VT-x 项目即证明已经开启

davywalker@davywalker-ThinkPad-X1-Carbon-4th:~/Downloads/Clash-Linux$ lscpu
Architecture:                    x86_64
CPU op-mode(s):                  32-bit, 64-bit
Byte Order:                      Little Endian
Address sizes:                   39 bits physical, 48 bits virtual
CPU(s):                          4
On-line CPU(s) list:             0-3
Thread(s) per core:              2
Core(s) per socket:              2
Socket(s):                       1
NUMA node(s):                    1
Vendor ID:                       GenuineIntel
CPU family:                      6
Model:                           78
Model name:                      Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz
Stepping:                        3
CPU MHz:                         499.999
CPU max MHz:                     2800.0000
CPU min MHz:                     400.0000
BogoMIPS:                        4800.00
Virtualization:                  VT-x
L1d cache:                       64 KiB
L1i cache:                       64 KiB
L2 cache:                        512 KiB
L3 cache:                        3 MiB

方案二

执行 egrep -o '(vmx|svm)' /proc/cpuinfo 由如下值则为成功

davywalker@davywalker-ThinkPad-X1-Carbon-4th:~$ egrep -o '(vmx|svm)' /proc/cpuinfo 
vmx
vmx
vmx
vmx
vmx
vmx
vmx
vmx

2. KVM安装

其中 libvirt-bin 为非必要依赖

安装

davywalker@davywalker-ThinkPad-X1-Carbon-4th:~$ sudo apt-get install qemu-kvm qemu libvirt-bin virt-manager virt-viewer bridge-utils

验证

davywalker@davywalker-ThinkPad-X1-Carbon-4th:~$ sudo kvm-ok
INFO: /dev/kvm exists
KVM acceleration can be used

3. 确认环境

Trouble Shootings

Your CPU does not support KVM extensions

davywalker@davywalker-ThinkPad-X1-Carbon-4th:~$ sudo kvm-ok
Your CPU does not support KVM extensions

Refs