首先,在宿主机中编辑虚拟机的xml定义:
# virsh edit guest-machine
添加一段内容
<memoryBacking>
<source type='memfd'/>
<access mode='shared'/>
</memoryBacking>
...
<devices>
...
<filesystem type='mount' accessmode='passthrough'>
<driver type='virtiofs'/>
<source dir='/path/to/host/directory'/>
<target dir='host'/>
</filesystem>
...
</devices>
启动虚拟机,编辑虚拟机的 /etc/fstab,在末尾添加一行:
host /opt virtiofs rw,relatime 0 0
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