Re: Facing permission denied issue when adding QEMU command line arguments into the VM xml file

[Wang, Lei]

Found a similar question here, you can check if it can solve your problem:


https://stackoverflow.com/questions/48657281/how-to-solve-permission-denied-error-for-qemucommandline-in-libvirt

BR,
Lei

On 7/6/2022 6:57 PM, Bilal Zahoor wrote:
> Dear Qemu Community,
>
> Hope you are fine. We are facing permission issues when we have added 
> the qemu command line arguments in
> the vm xml file. Please find the attached vm xml file and the snap of 
> permission issue.For quick reference please see below qemu command 
> line arguments used in attached xml file.
>
> <qemu:commandline>
>     <qemu:arg value='-chardev'/>
>     <qemu:arg value='socket,id=charnet1,path=/tmp/sock-virtio0'/>
>     <qemu:arg value='-netdev'/>
>     <qemu:arg value='vhost-user,chardev=charnet1,queues=16,id=hostnet1'/>
>     <qemu:arg value='-device'/>
>     <qemu:arg 
> value='virtio-net-pci,mq=on,vectors=6,netdev=hostnet1,id=net1,mac=e4:11: 
> c6:d3:45:f2,bus=pci.0,addr=0x6, 
> page-per-vq=on,rx_queue_size=1024,tx_queue_size=1024'/>
>   </qemu:commandline>
>
>
>
> if we dont pass these qemu command line arguments then VM is 
> successfully launched but we dont get the virtio interface. Note here 
> that we have tried this setup on multiple machines but getting same 
> issue. All these configurations are done through super user. Please 
> advise what we are missing and how to resolve this permission denied 
> issue. Thanks.
>
>
> With Regards,
> Bilal.