我遇到了Virt-Manager问题，不想启动虚拟机并给出错误：
Error starting domain: internal error: process exited while connecting to monitor: char device redirected to /dev/pts/3 (label charserial0) qemu-system-x86_64: -device ioh3420,bus=pci,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1: Bus 'pci' not found 如果我点击详细信息这里是完整的错误：
Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 96, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/asyncjob.py", line 117, in tmpcb callback(*args, **kwargs) File "/usr/share/virt-manager/virtManager/domain.py", line 1160, in startup self._backend.create() File "/usr/lib/python2.7/dist-packages/libvirt.py", line 917, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) libvirtError: internal error: process exited while connecting to monitor: char device redirected to /dev/pts/3 (label charserial0)
qemu-system-x86_64：-device ioh3420，bus = pci，addr = 1c.0，multifunction = on，port = 1，chassis = 1，id = root.1：未find总线'pci'
我用virsh编辑手动添加了一些命令行的东西，以虚拟机的xmlconfiguration，因为virt-manager没有这些选项，即GPU BIOS文件等。这里是qemu命令行标签：
<qemu:commandline> <qemu:arg value='-device'/> <qemu:arg value='ioh3420,bus=pci,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1'/> <qemu:arg value='-device'/> <qemu:arg value='vfio-pci,host=04:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on,romfile=/home/me/Downloads/Sapphire.R9280X.3072.131127_2.rom'/> <qemu:arg value='-device'/> <qemu:arg value='vfio-pci,host=04:00.1,bus=root.1'/> <qemu:arg value='-bios'/> <qemu:arg value='/usr/share/seabios/bios.bin'/> <qemu:arg value='-cpu'/> <qemu:arg value='host,kvm=off'/> </qemu:commandline>
uname -a
Linux vmserver 3.16.0-customvmkernel #1 SMP Sun Sep 28 00:34:42 PDT 2014 x86_64 GNU/Linux
kvm –version
QEMU emulator version 2.1.0 (Debian 2.1+dfsg-4), Copyright (c) 2003-2008 Fabrice Bellard
我把bus = pcie.0或者bus = pci改成了bus = pci.0，显然它的名字取决于xml文件中使用的体系结构。 我使用了，而不是更stream行的机器q35定义，默认pcie.0
现在引导没有这个错误。