Windows 图形显示驱动开发-WDDM 2.4功能-GPU 半虚拟化（八）

在 VM 中

检查 VM 的设备管理器中是否存在虚拟呈现设备。 VM 内的所有呈现都通过虚拟 GPU。

用于设置 VM 的 PowerShell 脚本

以下 PowerShell 脚本是如何从头开始设置 VM 的示例。 修改它以满足你的需求。

Param(
   [string]$VMName,
   [string]$VHDPath,
   [string]$SwitchName,
   [switch]$CreateVm,
   [switch]$InitDebug,
   [switch]$CopyRegistry,
   [switch]$CopyDriverStore,
   [switch]$CreateSwitch,
   [switch]$AddGpu,
   [switch]$All
)

if($All)
{
   $CreateVm = $True
   $CreateInitDebug = $True
   $CopyRegistry = $True
   $CopyDriverStore = $True
   $CreateSwitch = $True
   $AddGpu = $True
   $InitDebug = $True
}

$vm = $VMName

#
# Validate parameters
#
if ($CreateSwitch -or $CreateVM)
{
    if ($SwitchName -eq "")
    {
        write "SwitchName is not set"
        exit
    }
}

if ($AddGpu -or $CreateVM)
{
    if ($VMName -eq "")
    {
        write "VMName is not set"
        exit
    }
}

if ($InitDebug -or $CreateVM -or $CopyDriverStore -or $CopyRegistry)
{
    if ($VHDPath -eq "")
    {
        write "VHDPath is not set"
        exit
    }
}

enable-windowsoptionalfeature -FeatureName Microsoft-Hyper-V-All -online

#
# Create a network switch for the VM
#
if ($CreateSwitch)
{
    New-VMSwitch $SwitchName -NetAdapterName "Ethernet (Kernel Debugger)"
}

#
# Create a VM and assign VHD to it
#
if ($CreateVm)
{
   New-VM -VMName $vm -Generation 2
   Set-VM -GuestControlledCacheTypes $true -VMName $vm

Set-VM -LowMemoryMappedIoSpace 1Gb -VMName $vm
   Set-VM -HighMemoryMappedIoSpace 32GB -VMName $vm
   Set-VMProcessor -VMname $vm -count 4
   Set-VMMemory -VMName $vm -DynamicMemoryEnabled $true -MinimumBytes 1024MB -MaximumBytes 4096MB -StartupBytes 1024MB -Buffer 20
   Add-VMHardDiskDrive -VMName $vm -Path $VHDPath
   Connect-VMNetworkAdapter -VMName $vm -Name "Network Adapter" -SwitchName $SwitchName
   Set-VMFirmware -VMName $vm -EnableSecureBoot off
   Set-VMFirmware -VMName $vm -FirstBootDevice (Get-VMHardDiskDrive -VMName $vm)
}

#
# Enable debugger and testsiging
#
if ($InitDebug)

```powershell
{
   Mount-vhd $VHDPath
   Add-PartitionAccessPath  -DiskNumber (Get-DiskImage -ImagePath $VHDPath | Get-Disk).Number -PartitionNumber 1 -AssignDriveLetter
   $efidrive = (Get-DiskImage -ImagePath $VHDPath | Get-Disk | Get-Partition -PartitionNumber 1).DriveLetter
   bcdedit /store ${efidrive}:\EFI\Microsoft\Boot\BCD -set '{bootmgr}' testsigning on
   bcdedit /store ${efidrive}:\EFI\Microsoft\Boot\BCD -set '{default}' debug on
   bcdedit /store ${efidrive}:\EFI\Microsoft\Boot\BCD /dbgsettings net port:50052 key:a.b.c.d hostip:10.131.18.133
   Dismount-VHD $VHDPath
}

#

# Now boot the VM without vGPU to verify that it's initialized correctly
# If everything is OK, turn off the VM
#
if ($CreateVm)
{
   Write-Output "Boot the VM and turn it OFF after it's initialized"
   pause
}

#
# Add virtual GPU
#
if($AddGpu)
{
   Add-VMGpuPartitionAdapter -VMName $vm
   Get-VMGpuPartitionAdapter -VMName $vm
}

#
# Copy the driver store to the VM
#
if ($CopyDriverStore)
{
   Write "Copying driver store"
   Mount-vhd $VHDPath
   $drive = (Get-DiskImage -ImagePath $VHDPath | Get-Disk | Get-Partition -PartitionNumber 3).DriveLetter
   xcopy /s $Env:windir\system32\driverstore\* ${drive}:\windows\system32\hostdriverstore 

Dismount-VHD $VHDPath
}

#
# Export driver registry settings
#
if ($CopyRegistry)
{
   Write "Copying registry"
   Mount-vhd $VHDPath
   $drive = (Get-DiskImage -ImagePath $VHDPath | Get-Disk | Get-Partition -PartitionNumber 3).DriveLetter
   reg load HKLM\VMSettings ${drive}:\Windows\System32\config\SYSTEM
   reg copy "HKLM\System\CurrentControlSet\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000" "HKLM\VmSettings\CurrentControlSet\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000" /s /f
   reg unload "HKLM\VmSettings"
   Dismount-VHD $VHDPath
}

调试 VM

在常规客户端计算机上配置 VM 调试器的方式与网络调试相同。

如果 VM 未启动或看到黑屏：

• 使用以下命令关闭 VM 并从中删除虚拟 GPU：

  vm = "TEST" remove-VMGpuPartitionAdapter -VMName vm -AdapterId ""

例如：

remove-VMGpuPartitionAdapter  -VMName $vm -AdapterId "Microsoft:9ABB95E2-D12D-43C3-B840-6F4A9CFB217B\929890BC-BB33-4687-BC1A-F72A4F1B3B3F"

• 启动 VM。 如果成功启动，请确保驱动程序文件正确复制到 VM 中的 HostDriverStore。

• 使用 Add-VMGpuPartitionAdapter 命令将 vGPU 添加到 VM。

• 再次启动 VM