Re: [Xen-devel] Xen 4.2.0-rc4 issues with DVB tuner

[Javier Marcet <jmarcet@xxxxxxxxx>]

On Fri, Sep 14, 2012 at 10:47 PM, Konrad Rzeszutek Wilk
<konrad@xxxxxxxxxx> wrote:

>> This last point is a showstopper for me and I donÂt know where the
>> problem might come from. The cx23885 module (which my tuners use)
>> loads fine, as do the devices under /dev/dvb. Upon tuning a channel,
>> however, there is not data received.
>>
>> Does anyone have the slightest idea what might be causing this?
>
> Are there any warnings or such being printed? Are the interrupts increasing?
> Does lspci show anything 'disabled' in the guest?

You have misunderstood me. I was trying to access the dvb tuners from the dom0.

Using kvm I have sucessfully passthrough a sata controller, but have some issues
passin through the dvb tuner.

>> I wonder whether it would work within a DomU with the PCIe tuner
>> passed through.
>
> I've a 4 channel security card passed in and it works nicely. The
> trick is that you need 'iommu=soft' on the domU command line.

All right. But is it normal that it does not work under the dom0?
The same kernel running on bare metal has no problems.


-- 
Javier Marcet <jmarcet@xxxxxxxxx>

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