[Xen-users] Re: XEN sound emulation locks device exclusively

["Csillag, Kristof \(GE Healthcare, consultant\)" <Kristof.Csillag@xxxxxx>]

> As I think XEN has no "audio emulation", there's probably no fix other than
> using VMware that has an audio emulation.

OK, so I have the wrong idea about how XEN handles sound.
(I found no documentation on this, so it was basically a guess.)

Here is what I know:

- In the notebook computer there is and Intel HDA sound card.
- In the configuration file for my HVM guest, I have "soundhw='sb16'".
- The WinXP running as HVM guest sees a Sound Blaster 16 sound device, and can 
use it.

Here is what I thought:

- Either the XEN hypervisor, or some user-space tool (probably the later) 
emulates
  the hardware interface of a SB16 for the HVM host, and
- it relays the sound to the sound system of DOM0.

If this is not how it goes, then what?
I thought that since there is no real SB16 in the host in question,
the SB16 interface must have been emulated,
but from what you say I seem to be mistaken.

Could someone please explain this, or give a link to the appropriate 
documentation?

Thank you:


     Kristof Csillag

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