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Re: [Qemu-arm] [Qemu-devel] Question about a qemu Aarch64 error when add


From: Kevin Zhao
Subject: Re: [Qemu-arm] [Qemu-devel] Question about a qemu Aarch64 error when adding several SCSI disks
Date: Mon, 27 Jun 2016 21:05:36 +0800

Hi Cole,

On 24 June 2016 at 19:35, Cole Robinson <address@hidden> wrote:
On 06/24/2016 12:58 AM, Kevin Zhao wrote:
> Hi Peter,
>      Follow your advice, I have complied the Qemu v2.6.
> address@hidden:~$ kvm --version
> QEMU emulator version 2.6.50 (v2.6.0-1280-g6f1d2d1-dirty), Copyright (c)
> 2003-2008 Fabrice Bellard
>      With this newest version, I use virt-manager to create the guest , the
> xml file is in the attachment. But the Qemu return error when creating:
>      *error: internal error: process exited while connecting to monitor:
> qemu-system-aarch64: -device
> pci-bridge,chassis_nr=2,id=pci,bus=pci,addr=0x1: Duplicate ID 'pci' for
> device*
>

That's probably this libvirt issue fixed in 1.3.4 and later:

https://www.redhat.com/archives/libvirt-users/2016-April/msg00030.html

I suggest testing with libvirt.git as well, there's been aarch64 related
patches trickling in regularly

- Cole

     Thanks for your valuable advice. Follow your advice, I have build the upstream vesion
of libvirt. The libvirt  version is : 
        address@hidden:/opt/stack/kevin/libvirt/daemon# ./libvirtd
        2016-06-27 12:11:03.501+0000: 28044: info : libvirt version: 2.0.0
I stopped the system libvirtd-bin and libvirt-guests , then using libvirtd above.

Also I have replace the system Qemu with the Qemu 2.6.50 which I have built from upstream :
        address@hidden:/opt/stack/kevin/libvirt# qemu-system-aarch64 --version
        QEMU emulator version 2.6.50 (v2.6.0-1280-g6f1d2d1-dirty), Copyright (c) 2003-2008 Fabrice Bellard
Using this XML in the attachment:
        Then Run virsh command to create guest: 
        address@hidden:/opt/stack/kevin/libvirt/tools# ./virsh create /opt/stack/f23.xml --console
        error: Failed to create domain from /opt/stack/f23.xml
        error: internal error: process exited while connecting to monitor: 2016-06-27T12:45:23.807405Z qemu-system-aarch64: -drive file=/var/lib/libvirt/qemu/nvram/f23_VARS.fd,if=pflash,format=raw,unit=1: Could not open         '/var/lib/libvirt/qemu/nvram/f23_VARS.fd': Permission denied
        
Here I met the permission problem and I'm not sure where is wrong. If I use origin qemu-system-aarch64(installed by apt-get),I will not meet the problem of permission..Kindly need your help, you will be really appreciated,,,   :D
$ls -l /usr/bin/qemu-system-aarch64
-rwxr-xr-x 1 root root 26935520 Jun 27 10:56 /usr/bin/qemu-system-aarch64
 $ls -l /var/lib/libvirt/qemu/nvram/f23_VARS.fd
-rw------- 1 root root 67108864 Jun 20 07:27 /var/lib/libvirt/qemu/nvram/f23_VARS.fd

 
>      The guest xml file in in attachment. But the XML worked when Qemu is
> v2.4.0.
>       Also I delete the items in the xml :
>   -  <controller type='pci' index='0' model='pcie-root'/>
>   -  <controller type='pci' index='1' model='dmi-to-pci-bridge'>
>   -    <model name='i82801b11-bridge'/>
>   -    <address type='pci' domain='0x0000' bus='0x00' slot='0x01'
> function='0x0'/>
>   -  </controller>
>   -  <controller type='pci' index='2' model='pci-bridge'>
>   -    <model name='pci-bridge'/>
>   -    <target chassisNr='2'/>
>   -    <address type='pci' domain='0x0000' bus='0x01' slot='0x01'
> function='0x0'/>
>   -  </controller>
>       Using virsh create guest.xml, got the error too :
>       *error: internal error: process exited while connecting to monitor:
> qemu-system-aarch64: -device
> pci-bridge,chassis_nr=2,id=pci,bus=pci,addr=0x1: Duplicate ID 'pci' for
> device.*
> My test machine is Softiron, with AMD* ARM64 *server CPU. The  libvirt
> version is 1.3.1
>
>      Kindly need your help. You will be really appreciated :-)
>      Big Thanks~
>


Attachment: f23.xml
Description: Text Data


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