This is a PowerShell script written to assist in using Hyper-V Discrete Device Assignment for devices that support it. This script does not validate system configuration or check if the system is capable of doing so.
Mode: Required parameter to specify if a device is to be mounted to a VM, or unmounted from a VM and returned to the host. Valid options are "Mount" and "Dismount"
VMName: Required parameter to specify the VM name to mount a device to or unmount a device from
InstanceId: Optional parameter only used when mounting a device to a VM. Please use InstanceId found from using the PowerShell command 'Get-PnPDevice'
When unmounting a device from a VM, the user can select which device to unmount from a VM. Useful if multiple devices are assigned to a VM.
When mounting a device, checks are in place to make sure that dynamic memory and the automatic stop action match required settings for discrete device assignment. Doing so may automatically shut down the VM to make changes. The VM is set to turn back on once the host device is assigned to the VM.