[CentOS-virt] Centos Xen libvirt question

[Chuck Meade]

Hello,

Looking for libvirt-daemon-xen for Centos 7.  Does anyone have the location of 
this package?

Thanks,
Chuck
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Re: [CentOS-virt] Assigning a PCI sound device to a VM

[Robert Nichols]

On 09/03/2015 01:59 PM, Robert Nichols wrote:

On 09/03/2015 03:14 AM, George Dunlap wrote:

On Thu, Sep 3, 2015 at 2:29 AM, Robert Nichols
 wrote:

I have a PCI sound card that I would like to assign to a VM, but
when I try to do so the VM fails to start and displays this message:

Error starting domain: Unable to read from monitor: Connection reset
by peer

[SNIP]

The sound card is an Asus Xonar DGX PCIe 5.1, and identifies itself
as "07:04.0 Multimedia audio controller: C-Media Electronics Inc CMI8788
[Oxygen HD Audio]".

I see the same problem if I try to assign the motherboard's Intel
Xeon E3-1200 HD Audio Controller to the VM.  Both of these devices
are supported by the host kernel (3.18.17-13.el6.x86_64).

I have no problem assigning a USB sound device, but those have very
limited capability.


Which hypervisor / CentOS version are you using?


libvirt-0.10.2-54.el6.x86_64 in CentOS 6.7,
using kernel-3.18.17-13.el6.x86_64 from the Xen4CentOS 6 repo.
(I need that kernel for the motherboard's sound controller.  The
  behavior when trying to assign a PCI device to the VM is the
  same with the standard 2.6.32 kernel in CentOS 6.7.)


That's qemu / KVM.


--
Bob Nichols "NOSPAM" is really part of my email address.
Do NOT delete it.

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Re: [CentOS-virt] Beta CentOS 7 Xen packages available

[Chuck Meade]

Thanks Jason, I had accidentally left off the 
"--enablerepo=virt-xen-44-candidate" from the yum install command.

Chuck

On 09/03/2015 03:58 PM, Jason Brooks wrote:
>
> - Original Message -
>> From: "Chuck Meade" 
>> To: centos-virt@centos.org
>> Sent: Thursday, September 3, 2015 12:50:55 PM
>> Subject: Re: [CentOS-virt] Beta CentOS 7 Xen packages available
>>
>> Hi Thomas,
>>
>> This may be old news at this point, but I had 100% identical behavior to
>> yours when I tried virtx7-44-testing.
>> After looking around a bit I tried "virtx7-44-candidate", in a sibling
>> directory to virtx7-44-testing.  It has a more
>> recent date, so I tried with that and it works fine.  It resolves the issues
>> listed in your email from 7/7/2015.
>>
>> I am now looking for a libvirt-daemon-xen package for Centos 7.  Any ideas on
>> where that lives?
> Chuck, that's a subpackage of libvirt. Look in these:
>
> http://cbs.centos.org/koji/packageinfo?packageID=130
>
> Jason
>
>
>> Thanks,
>> Chuck
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Re: [CentOS-virt] Assigning a PCI sound device to a VM

[George Dunlap]

On Thu, Sep 3, 2015 at 2:29 AM, Robert Nichols
 wrote:
> I have a PCI sound card that I would like to assign to a VM, but
> when I try to do so the VM fails to start and displays this message:
>
> Error starting domain: Unable to read from monitor: Connection reset by peer
>
> Traceback (most recent call last):
>   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 44, in
> cb_wrapper
> callback(asyncjob, *args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 65, in tmpcb
> callback(*args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/domain.py", line 1125, in
> startup
> self._backend.create()
>   File "/usr/lib64/python2.6/site-packages/libvirt.py", line 686, in create
> if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
> libvirtError: Unable to read from monitor: Connection reset by peer
>
> The XML generated by virt-manager for the device is
>
> 
>   
> 
>   
>function='0x0'/>
> 
>
> The sound card is an Asus Xonar DGX PCIe 5.1, and identifies itself
> as "07:04.0 Multimedia audio controller: C-Media Electronics Inc CMI8788
> [Oxygen HD Audio]".
>
> I see the same problem if I try to assign the motherboard's Intel
> Xeon E3-1200 HD Audio Controller to the VM.  Both of these devices
> are supported by the host kernel (3.18.17-13.el6.x86_64).
>
> I have no problem assigning a USB sound device, but those have very
> limited capability.

Which hypervisor / CentOS version are you using?

 -George
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