| 两侧同时换到之前的修订记录 前一修订版 后一修订版 | 前一修订版 |
| public:it:libvirt [2022/02/18 10:15] – oakfire | public:it:libvirt [2022/08/04 14:13] (当前版本) – [IDV显卡回挂] oakfire |
|---|
| * [[https://libvirt.org/|Official site]] | * [[https://libvirt.org/|Official site]] |
| * [[https://libvirt.org/formatdomain.html|Domain XML format]] | * [[https://libvirt.org/formatdomain.html|Domain XML format]] |
| * [[https://www.cnblogs.com/sammyliu/p/4558638.html]] | * [[https://www.cnblogs.com/sammyliu/p/4558638.html|libvirt 介绍]] |
| * [[https://www.cnblogs.com/qiuhom-1874/p/13499801.html|虚拟化技术之kvm基础]] | * [[https://www.cnblogs.com/qiuhom-1874/p/13499801.html|虚拟化技术之kvm基础]] |
| | * [[https://www.cnblogs.com/qiuhom-1874/p/13508231.html|常用基础工具、命令]] |
| | * 检查CPU是否支持虚拟化 ''grep -E "vmx|svm" /proc/cpuinfo '', 或 ''lscpu | grep -E "vmx|svm" '' |
| |
| ===== Tips ===== | ===== Tips ===== |
| * ''virsh list --all'' | * <code bash>virsh list --all</code> |
| * xml 位置 ''/etc/libvirt/qemu/'' | * xml 位置 ''/etc/libvirt/qemu/'' |
| * xml 校验<code bash> virt-xml-validate /path/to/XML/file </code> | * xml 校验<code bash> virt-xml-validate /path/to/XML/file </code> |
| * 手动修改xml后重新载入：'' virsh define /etc/libvirt/qemu/<your-xml-name>.xml'' | * 手动修改xml后重新载入：<code bash>virsh define /etc/libvirt/qemu/your-xml-name.xml</code> |
| | |
| | ===== IDV显卡回挂 ===== |
| | - 以下步骤在 ubuntu 18.04 环境。查看系统内核版本（内核版本很重要）<code bash> |
| | root@Default:~# uname -a |
| | Linux troila-Default-string 5.3.0-53-generic #47~18.04.1-Ubuntu SMP Thu May 7 13:10:50 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
| | </code> |
| | - 查看显卡设备<code shell> |
| | root@troila-Default-string:~# lspci |
| | 00:02.0 VGA compatible controller: Intel Corporation Skylake GT2 [HD Graphics 520] (rev 07) |
| | </code> |
| | - 查看显卡的vid，pid<code bash> |
| | root@Default:~# lspci -n |
| | 00:02.0 0300: 8086:1916 (rev 07) |
| | </code> |
| | - 挂载显卡<code bash> |
| | systemctl restart getty@tty1.service #停止gdm |
| | sleep 1 |
| | echo "8086 1916" > /sys/bus/pci/drivers/vfio-pci/new_id #创建虚拟机所用驱动id |
| | echo "0000:00:02.0" > /sys/bus/pci/devices/0000\:00\:02.0/driver/unbind #解绑i915驱动与显卡设备 |
| | echo "0000:00:02.0" > /sys/bus/pci/drivers/vfio-pci/bind #绑定vfio驱动到显卡 |
| | echo "8086 1916" > /sys/bus/pci/drivers/vfio-pci/remove_id #移动id |
| | </code>注：执行后，依赖gnome的进程(包括隐藏窗口的进程)都会变成僵尸进程 |
| | - 显卡回挂<code bash> |
| | echo -n "0000:00:02.0" > /sys/bus/pci/devices/0000\:00\:02.0/driver/unbind #解绑vfio与显卡设备 |
| | echo -n "0000:00:02.0" > /sys/bus/pci/drivers/i915/bind #i915驱动绑定到显卡上 |
| | systemctl restart display-manager #重启gdm |
| | </code> |
| | |
oakfire