Hyper-V PCIe passthrough CheatSheet

Hyper-V PCI-Passthroug.ps1

# Change to name of TARGET-VM.
$vm='CHANGE_ME'
# Change to PCI device location (💡 Location).
$Location = 'CHANGE_ME'

# Enable CPU features.
Set-VM -GuestControlledCacheTypes $true -VMName $vm
# Host-Shutdown rule must be changed for the VM.
Set-VM -Name $vm -AutomaticStopAction TurnOff

# Change size to fit your requirements ("💡 Min required MMOU Space"). 
# (See https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/plan/plan-for-deploying-devices-using-discrete-device-assignment#mmio-space)
Set-VM -LowMemoryMappedIoSpace 3Gb -VMName $vm # 32bit
Set-VM -HighMemoryMappedIoSpace 6Gb -VMName $vm # 64bit

# Dismount device
Dismount-VMHostAssignableDevice -LocationPath $Location
Dismount-VMHostAssignableDevice -force -LocationPath $Location

Add-VMAssignableDevice -LocationPath $Location -VMName $vm

# Try start the VM in Hyper-V manager.
# ❓ Starting fails with: "A hypervisor feature is not available to the user." ❓
# See: https://social.technet.microsoft.com/Forums/ie/en-US/a7c2940a-af32-4dab-8b31-7a605e8cf075/a-hypervisor-feature-is-not-available-to-the-user?forum=WinServerPreview
# Reboot host.
bcdedit /set hypervisoriommupolicy enable
Restart-Computer -Confirm

List PCI locations and required MMOSpaces.ps1

# SOURCE: https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/plan/plan-for-deploying-devices-using-discrete-device-assignment#machine-profile-script

# 1. Get Powershell script-helper:
curl -o SurveyDDA.ps1 https://raw.githubusercontent.com/MicrosoftDocs/Virtualization-Documentation/live/hyperv-tools/DiscreteDeviceAssignment/SurveyDDA.ps1

# 2. Run the script.
.\SurveyDDA.ps1

# Find your device (must be enabled). See valid example:
#
#
# AMD PSP 3.0 Device                                                <---- 💡 Device name
# Express Endpoint -- more secure.
#    And its interrupts are message-based, assignment can work.
#    And it requires at least: 2 MB of MMIO gap space               <---- 💡 Min required MMOU Space
# PCIROOT(0)#PCI(0701)#PCI(0002)                                    <---- 💡 Location