spice remote-viewer 连接会话时自动重定向usb设备(记录)

方法

1，直接使用以下命令即可自动重定向usb设备（除HID设备）
remote-viewer --spice-usbredir-redirect-on-connect="0x03,-1,-1,-1,0|-1,-1,-1,-1,1" console.vv

2，如果使用以下命令，则仅在插拔usb接口才会重定向usb设备：
remote-viewer --spice-usbredir-auto-redirect-filter="0x03,-1,-1,-1,0|-1,-1,-1,-1,1"

解释：

0x03,-1,-1,-1,0 代表过滤此HID（human interface device）设备，即鼠标、键盘、游戏手柄等。

-1,-1,-1,-1,1 代表允许所有设备连接。

| 多个规则组合，排前面的优先匹配规则（个人理解，不知道有没有错）

规则格式：
<class>,<vendor>,<product>,<version>,<allow>

<class>,<vendor>,<product>,<version>使用 -1 代表任何值

spice usb拓展

以下内容全部来源于：https://www.spice-space.org/usbredir.html

Using libvirt

The following libvirt XML will configure a guest with USB2 support and the ability to redirect 3 devices simultaneously:

<controller type='usb' index='0' model='ich9-ehci1'/>
<controller type='usb' index='0' model='ich9-uhci1'>
  <master startport='0'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
  <master startport='2'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
  <master startport='4'/>
</controller>
<redirdev bus='usb' type='spicevmc'/>
<redirdev bus='usb' type='spicevmc'/>
<redirdev bus='usb' type='spicevmc'/>

For USB3 support, the configuration can be simplified to:

<controller type='usb' index='0' model='nec-xhci'/>
<redirdev bus='usb' type='spicevmc'/>
<redirdev bus='usb' type='spicevmc'/>
<redirdev bus='usb' type='spicevmc'/>

Using QEMU

The following qemu options will configure a guest with USB2 support and the ability to redirect 3 devices simultaneously

-device ich9-usb-ehci1,id=usb 
-device ich9-usb-uhci1,masterbus=usb.0,firstport=0,multifunction=on 
-device ich9-usb-uhci2,masterbus=usb.0,firstport=2 
-device ich9-usb-uhci3,masterbus=usb.0,firstport=4 
-chardev spicevmc,name=usbredir,id=usbredirchardev1 
-device usb-redir,chardev=usbredirchardev1,id=usbredirdev1 
-chardev spicevmc,name=usbredir,id=usbredirchardev2 
-device usb-redir,chardev=usbredirchardev2,id=usbredirdev2 
-chardev spicevmc,name=usbredir,id=usbredirchardev3 
-device usb-redir,chardev=usbredirchardev3,id=usbredirdev3

For USB3 support, the configuration can be simplified to:

-device nec-usb-xhci,id=usb 
-chardev spicevmc,name=usbredir,id=usbredirchardev1 
-device usb-redir,chardev=usbredirchardev1,id=usbredirdev1 
-chardev spicevmc,name=usbredir,id=usbredirchardev2 
-device usb-redir,chardev=usbredirchardev2,id=usbredirdev2 
-chardev spicevmc,name=usbredir,id=usbredirchardev3 
-device usb-redir,chardev=usbredirchardev3,id=usbredirdev3

Host Filtering

Set a string specifying a filter to determine which USB devices are allowed/blocked to redirect USB traffic to the guest.

Using QEMU

-device usb-redir,filter='0x03:-1:-1:-1:0|-1:-1:-1:-1:1',chardev=usbredirchardev1,id=usbredirdev1

Note that in a QEMU command, the filter string should use a ':' character as a separator within the rule.

Using libvirt

...
<devices>
 ...
  <redirfilter>
    <usbdev class='0x08' vendor='0x1234' product='0xbeef' version='2.56' allow='yes'/>
    <usbdev allow='no'/>
  </redirfilter>
</devices>
...