我比较喜欢折腾虚拟化，最近在折腾的就是这个：把宿主机的 Intel 集成显卡 给 Windows 虚拟机使用。Intel 平台做这个事情非常 方便，因为官方有 Intel GVT-g 项目，就是用来把宿主机生成多个虚拟 GPU 给虚拟机用的。
共享集成显卡
- 首先我们需要安装
virt-manager - 编辑宿主机
/etc/default/grub文件，在GRUB_CMDLINE_LINUX中，添加i915.enable_gvt=1 i915.enable_fbc=0 - 重新生成GRUB 配置
sudo update-grub 编辑
/etc/modules-load.d/kvm-gvt-g.conf配置文件，内容为：kvmgt vfio-iommu-type1 mdev宿主机安装Mesa库
apt-get install mesa-utils重启宿主机，执行
lspci | grep VGA，看看输出是否有00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile) (rev 02)类似这么一行进入文件夹
cd /sys/bus/pci/devices/0000\:00:02.0执行
ls -l mdev_supported_types/看是否有输出，每一个都是一种GPU的类型，数字越大，显存越小，可以通过执行cat /sys/devices/pci0000\:00/0000\:00\:02.0/mdev_supported_types/<类型>/description查看每种类型的描述选择一个类型，生成一个uuid，创建一个虚拟GPU
# uuidgen 945248c6-8d80-44a3-9a19-d85e22b19a7f # echo 945248c6-8d80-44a3-9a19-d85e22b19a7f | tee mdev_supported_types/i915-GVTg_V5_4/create上述配置每次重启都会丢失，为了让宿主机每次启动都生成上述GPU，编辑一个systemd文件
/etc/systemd/system/setup-gvt.service[Unit] Description=Setup GVT [Service] Type=oneshot ExecStart=/usr/bin/bash -c 'echo 945248c6-8d80-44a3-9a19-d85e22b19a7f > /sys/devices/pci0000:00/0000:00:02.0/mdev_supported_types/i915-GVTg_V5_4/create' [Install] WantedBy=multi-user.target安装Windows 10虚拟机，记得安装 virtio 驱动，这个我在 KVM 显卡穿透给 Windows 讲过，此处不赘述，也可以看参考文档中第一篇
virsh 编辑虚拟机 xml
- 第一行
<domain type='kvm'>改成<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> 找到
<graphics ...>那一行，改成<graphics type='spice'> <listen type='none'/> <gl enable='yes' rendernode='/dev/dri/by-path/pci-0000:00:02.0-render'/> </graphics>找到 xml 中的 video 那一块，原来的内容可能是
<video> <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/> </video>
改成
<video> <model type='none'/> </video>- 第一行
编辑文件，在
<video>后面，增加<hostdev mode='subsystem' type='mdev' managed='no' model='vfio-pci' display='on'> <source> <address uuid='945248c6-8d80-44a3-9a19-d85e22b19a7f'/> </source> <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/> </hostdev>启动虚拟机
Windows RDP 远程桌面配置优化
Windows-R输入 gpedit.msc，找到Computer Configuration > Policies > Administrative Template > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Connections- “RDP Transfer Protocols” 设置为 True，下面选择 “Use both UDP and TCP”
Computer Configuration > Policies > Administrative Template > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Remote Session Enviorment编辑- Use hardware graphics adapters for all Remote Desktop Services Sessions = Enabled
- Prioritize H.264/AVC 444 graphics mode for Remote Desktop Connections = Enabled
- Configure H.264/AVC Hardware encoding for Remote Desktop Connections = Enabled, Set “Prefer AVC hardware encoding” to “Always attempt”
- Configure compression for Remote FX data = Enabled, Set RDP compression algorithem: “Do not use an RDP compression algorithm”
- Configure image quality for RemoteFX Adaptive Graphics = Enabled, Set Image Quality to “High” (lossless seemed too brutal over WAN connections.)
- Enable RemoteFX encoding for RemoteFX clients designed for Windows Server 2008R2 SP1 = Enabled.
Computer Configuration > Policies&gt;Administrative Template > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Remote Session Enviorment > Remote FX for Windows Server 2008R2- Configure Remote FX = Enabled
- Optimize visual experience when using Remote FX = Enabled
- Set Screen capture rate (frames per second) = Highest (best quality)
- Set Screen Image Quality = Highest (best quality)
- Optimize visual experience for remote desktop sessions = Enabled
- Set Visual Experience = Rich Multimedia
Windows-R输入regedit，找到[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations]- 新建 Dword(32) 类型，名为
DWMFRAMEINTERVAL，值为0000000f
- 新建 Dword(32) 类型，名为
重启
参考资料：