A virtual machine can use up to four virtual serial ports. The virtual serial port can connect to a physical serial port or to a file on the host operating system. It may also be used to set up a direct connection between two virtual machines or a connection between a virtual machine and an application on the host computer.
You can set the following options under Device status:
You can set the following options under Connection:
In the first field, enter /tmp/<socket> or another Unix socket name of your choice. The pipe name must be the same on server and client.
In the first drop-down list, choose whether this is the server or the client.
In the second drop-down list, choose whether the other end is a virtual machine or an application.
Under I/O Mode, you may select Yield CPU on poll. This setting can improve performance when the guest operating system is using the serial port in polled mode. If the guest operating system is using the serial port in interrupt mode, do not select this option.
If you are adding a new serial port, click Add to install the device.
To remove an existing serial port, select that port, then click Remove.
Click OK to save the configuration and close the virtual machine settings editor.
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