现在我正试图做到这一点：http : //arseniyshestakov.com/2016/03/31/how-to-pass-gpu-to-vm-and-back-without-x-restart/
我已经让主机上的所有东西都能正常工作了。DRI_PRIME 正常工作，如下所示：
$ DRI_PRIME=1 glxinfo | grep "renderer string"
OpenGL renderer string: Gallium 0.4 on AMD HAWAII (DRM 2.43.0, LLVM 3.7.1)
$ glxinfo | grep "renderer string"
OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Server
问题是当我尝试使用以下脚本将 GPU 从 radeon 移动到 vfio-pci 时，系统完全冻结：
#!/bin/bash
set -x
echo "1002 67b1" > /sys/bus/pci/drivers/vfio-pci/new_id
echo "0000:01:00.0" > /sys/bus/pci/devices/0000:01:00.0/driver/unbind
echo "0000:01:00.0" > /sys/bus/pci/drivers/vfio-pci/bind
echo "1002 67b1" > /sys/bus/pci/drivers/vfio-pci/remove_id
echo "1002 aac8" > /sys/bus/pci/drivers/vfio-pci/new_id
echo "0000:01:00.1" > /sys/bus/pci/devices/0000:01:00.1/driver/unbind
echo "0000:01:00.1" > /sys/bus/pci/drivers/vfio-pci/bind …