PowerShell commands to configure Generation 2 VM kernel debug

Generation 2 VM has UEFI rather than BIOS. This means that secure boot is enabled by default but kernel debugging and secure boot are mutually exclusive.
Therefore, we will need to disable that first. Generation 2 VM still supports serial ports. We can set up serial ports for debugging again through PowerShell.

Here are two PowerShell commands to accomplish this:

 PS C:\> Set-VMFirmware -VMName testvm -EnableSecureBoot Off  
 PS C:\> Set-VMComPort testvm 1 \\.\pipe\vmdebug