麒麟 V10 创建虚拟机（KVM）

查看CPU信息

[root@localhost ~]# lscpu 
架构：           mips64el
字节序：         Little Endian
CPU:             4
在线 CPU 列表：  0-3
每个核的线程数： 1
每个座的核数：   4
座：             1
NUMA 节点：      1
型号名称：       Loongson-3A R4 (Loongson-3A4000)
BogoMIPS：       3594.02
L1d 缓存：       256 KiB
L1i 缓存：       256 KiB
L2 缓存：        1 MiB
L3 缓存：        2 MiB

操作系统版本

Kylin Linux Advanced Server release V10 (Tercel)
[root@localhost ~]# cat /proc/version 
Linux version 4.19.90-17.ky10.aarch64 (YHKYLIN-OS@localhost.localdomain) (gcc version 7.3.0 (GCC)) #1 SMP Sun Jun 28 14:27:40 CST 2020

是否支持虚拟化

[root@localhost ~]# dmesg | grep kvm
[    0.718369] kvm [1]: Hisi ncsnp: enabled
[    0.718372] kvm [1]: 16-bit VMID
[    0.718373] kvm [1]: IPA Size Limit: 48bits
[    0.718377] kvm [1]: GICv4 support disabled
[    0.718378] kvm [1]: vgic-v2@9b020000
[    0.718379] kvm [1]: GIC system register CPU interface enabled
[    0.718394] kvm [1]: vgic interrupt IRQ1
[    0.718414] kvm [1]: VHE mode initialized successfully

1、安装虚拟化软件

yum -y install qemu* libvirt* virt-install

2、修改vi /etc/libvirt/qemu.conf

3、重启libvirtd服务

systemctl restart libvirtd

4、设置开机启动

[root@localhost ~]# systemctl enable libvirtd
[root@localhost ~]# 
[root@localhost ~]# systemctl status  libvirtd 
Redirecting to /bin/systemctl status libvirtd.service
● libvirtd.service - Virtualization daemon
   Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2021-04-07 10:40:07 CST; 10s ago
     Docs: man:libvirtd(8)
           https://libvirt.org
 Main PID: 92805 (libvirtd)
    Tasks: 19 (limit: 32768)
   Memory: 29.3M
   CGroup: /system.slice/libvirtd.service
           ├─92645 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelper
           ├─92646 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelper
           └─92805 /usr/sbin/libvirtd
 
4月 07 10:40:07 localhost.localdomain systemd[1]: Starting Virtualization daemon...
4月 07 10:40:07 localhost.localdomain systemd[1]: Started Virtualization daemon.
4月 07 10:40:07 localhost.localdomain dnsmasq[92645]: read /etc/hosts - 2 addresses
4月 07 10:40:07 localhost.localdomain dnsmasq[92645]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses
4月 07 10:40:07 localhost.localdomain dnsmasq-dhcp[92645]: read /var/lib/libvirt/dnsmasq/default.hostsfile
4月 07 10:40:07 localhost.localdomain libvirtd[92805]: libvirt version: 5.5.0, package: 6.ky10 (Koji, 2020-03-18-20:23:00, ae4af90b50c84bc0baf802aca7ec6143)
4月 07 10:40:07 localhost.localdomain libvirtd[92805]: hostname: localhost.localdomain
4月 07 10:40:07 localhost.localdomain libvirtd[92805]: Failed to get host CPU cache info

5、关闭selinux

[root@localhost ~]# setenforce 0
setenforce: SELinux is disabled
[root@localhost ~]# 
[root@localhost ~]# 
[root@localhost ~]# getenforce  
Disabled

6、创建网桥br1

[root@localhost ~]# brctl addbr br1

7、修改ifcfg-xxx文件

[root@localhost ~]# cd /etc/sysconfig/network-scripts/
[root@localhost network-scripts]# cp ifcfg-enp125s0f0 ifcfg-enp125s0f0.bak
[root@localhost network-scripts]# vi ifcfg-enp125s0f0

将IPADDR、NETMASK、GATEWAY三项删掉，添加以下内容：

BRIDGE="br1"

配置网桥

[root@localhost network-scripts]#  vi ifcfg-br1 
BOOTPROTO=static
NAME=br1
DEVICE=br1
TYPE=Bridge
ONBOOT=yes
IPADDR=192.168.xx.xx
NETMASK=255.255.255.0
GATEWAY=192.168.xx.xxx

虚拟机内部网络配置

修改/etc/sysconfig/network-scripts/ifcfg-xxx，配置ip跟宿主机同一网段即可。

网桥设置

[root@localhost ~]# ip tuntap add dev tap0 mod tap
[root@localhost ~]# brctl addif br1 tap0
[root@localhost ~]# 
[root@localhost ~]# ifconfig tap0 0.0.0.0 promisc up
[root@localhost ~]#

重启网络服务