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
<hostdev mode='subsystem' type='pci' managed='yes'>
<source>
<address domain='0x0000' bus='0x07' slot='0x04' function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06'
function='0x0'/>
</hostdev>
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.
--
Bob Nichols "NOSPAM" is really part of my email address.
Do NOT delete it.
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