Hi,
I'm using virsh to instance a VM in my environment, but I'm running on
some issues. I created the following domain file:
<domain type='kvm'>
<name>demovm</name>
<uuid>4a9b3f53-fa2a-47f3-a757-dd87720d9d1d</uuid>
<memory unit='KiB'>4194304</memory>
<currentMemory unit='KiB'>4194304</currentMemory>
<memoryBacking>
<hugepages>
<page size='2' unit='M' nodeset='0'/>
</hugepages>
</memoryBacking>
<vcpu placement='static'>2</vcpu>
<cputune>
<shares>4096</shares>
<vcpupin vcpu='0' cpuset='4'/>
<vcpupin vcpu='1' cpuset='5'/>
<emulatorpin cpuset='4,5'/>
</cputune>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
</features>
<cpu mode='host-model'>
<model fallback='allow'/>
<topology sockets='2' cores='1' threads='1'/>
<numa>
<cell id='0' cpus='0-1' memory='4194304' unit='KiB'
memAccess='shared'/>
</numa>
</cpu>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/libexec/qemu-kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='/root/cirros-0.3.5-x86_64-disk.img'/>
<target dev='vda' bus='virtio'/>
</disk>
<disk type='dir' device='disk'>
<driver name='qemu' type='fat'/>
<source dir='/usr/src/dpdk-stable-16.11.1'/>
<target dev='vdb' bus='virtio'/>
<readonly/>
</disk>
<interface type='vhostuser'>
<mac address='00:00:00:00:00:01'/>
<source type='unix' path='/var/run/openvswitch/dpdkvhostuser0'
mode='client'/>
<model type='virtio'/>
<driver queues='2'>
<host mrg_rxbuf='off'/>
</driver>
</interface>
<serial type='pty'>
<target port='0'/>
</serial>
<console type='pty'>
<target type='serial' port='0'/>
</console>
</devices>
</domain>
When I run:
virsh create domain.xml
I got the following error:
error: Failed to create domain from domain.xml
error: internal error: qemu unexpectedly closed the monitor:
2017-04-17T17:00:37.012369Z qemu-kvm: -drive
file=fat:/usr/src/dpdk-stable-16.11.1,if=none,id=drive-virtio-disk1,readonly=on:
Driver 'vvfat' is not whitelisted
If I comment the disk that cause this error, the instance starts without
error. Is there a way to whitelist this vvfat driver to instance this
VM?
And the strange thing about this error is that when I check the
available drives, there is vvfat in the list:
/usr/libexec/qemu-kvm -drive format=?
Supported formats: ftps http null-aio null-co file quorum blkverify
vvfat blkreplay qed raw qcow2 bochs dmg vmdk parallels vhdx vpc https
sheepdog host_cdrom ssh host_device nbd gluster qcow iscsi rbd tftp ftp
vdi blkdebug luks cloop
Here some information about the environment:
cat /etc/redhat-release
CentOS Linux release 7.3.1611 (Core)
virsh --version
2.0.0
/usr/libexec/qemu-kvm --version
QEMU emulator version 2.6.0 (qemu-kvm-ev-2.6.0-28.el7_3.6.1), Copyright
(c) 2003-2008 Fabrice Bellard
Thanks in advance for the help
Marco Aurelio Gomes
NCC - UNESP
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