[libvirt] Libvirt on power pc

[Li Zhang]

On 07/18/2012 06:04 PM, B Veera-B37207 wrote:
> Hi,
>
> Using command line I am able to bring up VM
>
> Here is the command:
>
> “/qemu-system-ppc -enable-kvm -m 512M -mem-path
> /var/lib/hugetlbfs/pagesize-4MB -nographic -M ppce500v2 -kernel
> /boot/uImage-p2020rdb.bin -initrd /
>
> //
>
> /./guest.rootfs.ext2.gz -append "root=/dev/ram rw console=ttyS0,115200"
> -serial tcp::4444,server,telnet -dtb /usr/share/qemu/ppce500v2.dtb -net /
>
> //
>
> /nic,model=virtio -net tap,script=/home/root/qemu-ifup/”
>
> Can anybody let me know the libvirt xml format for above command.


Hi,

I use the command:

$virsh domxml-from-native qemu-argv config

The xml file is as the following:

<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
   <name>unnamed</name>
   <uuid>8776233e-df27-0f2f-89b8-3e0d237a9d36</uuid>
   <memory unit='KiB'>536870912</memory>
   <currentMemory unit='KiB'>536870912</currentMemory>
   <vcpu placement='static'>1</vcpu>
   <os>
     <type arch='ppc' machine='ppce500v2'>hvm</type>
     <kernel>/boot/uImage-p2020rdb.bin</kernel>
     <initrd>./guest.rootfs.ext2.gz</initrd>
     <cmdline>root=/dev/ram rw console=ttyS0,115200</cmdline>
   </os>
   <clock offset='utc'/>
   <on_poweroff>destroy</on_poweroff>
   <on_reboot>restart</on_reboot>
   <on_crash>destroy</on_crash>
   <devices>
     <emulator>qemu-system-ppc</emulator>
     <interface type='ethernet'>
       <mac address='52:54:00:ac:84:3b'/>
       <script path='/home/root/qemu-ifup'/>
       <model type='virtio'/>
     </interface>
     <serial type='tcp'>
       <source mode='bind' host='' service='4444'/>
       <protocol type='raw'/>
       <target port='0'/>
     </serial>
     <console type='tcp'>
       <source mode='bind' host='' service='4444'/>
       <protocol type='raw'/>
       <target type='serial' port='0'/>
     </console>
     <memballoon model='virtio'/>
   </devices>
   <qemu:commandline>
     <qemu:arg value='-mem-path'/>
     <qemu:arg value='/var/lib/hugetlbfs/pagesize-4MB'/>
     <qemu:arg value='-dtb'/>
     <qemu:arg value='/usr/share/qemu/ppce500v2.dtb'/>
   </qemu:commandline>
</domain>

I doubt whether this can work.

BTW, I am working on ppc64 for pseries machine.
The following is my xml configuration.
I think this won't work for ppce500v2, just for reference.

<domain type='kvm'>
       <name>nodebug</name>
       <memory>524288</memory>
       <memorybacking>
           <hugepages/>
       </memorybacking>
       <vcpu>1</vcpu>
       <os>
           <type arch='ppc64' machine='pseries'>hvm</type>
       </os>
       <features>
           <acpi/>
       </features>
       <clock offset='utc'/>
       <devices>
           <emulator>/usr/local/bin/qemu-system-ppc64</emulator>
           <disk type='file' device='disk' >
               <driver name='qemu' type='raw'/>
               <source file='/home/kvm-test/fedora.img'/>
               <target dev='sda' bus='scsi'/>
           </disk>
           <serial type='pty'>
              <target port='0'/>
           </serial>
           <console type='pty'>
              <target type='serial' port='0'/>
           </console>
           <memballoon model="virtio"/>
       </devices>
</domain>


Thanks~!

>
> Regards,
>
> Veera.
>
>

>
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-- 
Best Regards
Li

IBM LTC, China System&Technology Lab, Beijing