我想在libvirt / qemu上用spice运行opengl
我是slackware 14.2,libvirt是最新的3.8,qemu是最新的2.10
我编辑了那些文件
/etc/libvirt/qemu.conf
cgroup_device_acl = [
"/dev/dri/renderD128"
]
/etc/cgrules.conf
<video>
<model type='virtio' heads='1' primary='yes'>
<acceleration accel3d='yes'/>
</model>
</video>
我正在观看小组视频,我认为许可是可以的
ls -lhd /dev/dri/*
crw-rw----+ 1 root video 226, 0 ott 15 18:39 /dev/dri/card0
crw-rw---- 1 root video 226, 128 ott 15 18:39 /dev/dri/renderD128
机器配置为使用gl运行
但是当我开始......
LANG=C virsh start pol64
error: Failed to start domain pol64
error: internal error: process exited while connecting to monitor: Could not access KVM kernel module: Operation not permitted
2017-10-15T18:00:13.714865Z qemu-kvm: failed to initialize KVM: Operation not permitted
当然cgmanager和libvirt重新启动了
找到解决方案First..wich用户运行qemu?在我的配置是“qemu”。在我的情况下,我们必须将qemu用户添加到视频组(视频组拥有dri / drm设备)
sudo usermod -aG video qemu
getfacl /dev/dri/renderD128
# file: dev/dri/renderD128
# owner: root
# group: video
user::rw-
group::rw-
other::---
然后我们必须编辑/etc/libvirt/qemu.conf并添加或修改acl
cgroup_device_acl = [
"/dev/null", "/dev/full", "/dev/zero",
"/dev/random", "/dev/urandom",
"/dev/ptmx", "/dev/kvm", "/dev/kqemu",
"/dev/rtc","/dev/hpet", "/dev/vfio/vfio",
"/dev/dri/renderD128"
]
然后重启libvirt
/etc/rc.d/rc.libvirt restart
vm必须配置spice,dri设备(不要选择auto)和opengl,opengl只能用“本地”配置,所以没有tls / server。