Re: [Xen-devel] Problems accessing passthrough PCI device

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 18.11.14 at 17:24, <furryfuttock@xxxxxxxxx> wrote:
> Hello Jan,
> 
> Friday, November 14, 2014, 5:27:36 AM, you wrote:
> 
>>>> I implied your earlier statement to mean that. But - did you also
>>>> verify that the three flags actually end up set (ideally from both
>>>> DomU and Dom0 perspective)? The PCI backend may be screwing
>>>> up things...
>>> 
>>> Yes I do verify the write. How do I check this from Dom0?
> 
>> Just use lspci.
> 
> I've just checked this with lspci. I see that the IO is being enabled.

Memory you mean.

> Any   other   idea   on   why I might be reading back 0xff for all PCI
> memory area reads? The lspci output follows.

Since this isn't behind a bridge - no, not really. Did you try this with
any other device for comparison purposes?

Jan


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