Re: [Xen-devel] Issue with PCI-passthrough and pvops

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

> > I would recommend you take a look at the probe function and figure out why
> > it can't reserve that region. And easy way to figure that out is to
> > boot the guest and look in /proc/iomem and see what is in the 
> > df30000-e32ffffff
> > region. Perhaps something else is overlapping it?
> >
> I might be wrong, but it doesn't seem quite so to me:
> 
> # cat /proc/iomem
> 00000000-0000ffff : reserved
> 00010000-0009ffff : System RAM
> 000a0000-000fffff : reserved
>   000f0000-000fffff : System ROM
> 00100000-1fffffff : System RAM
>   01000000-01b88b4b : Kernel code
>   01b88b4c-02352a7f : Kernel data
>   02652000-02ee6fff : Kernel bss
> 20000000-bf698fff : Unusable memory
> bf6af000-bf6cdfff : ACPI Tables
> d58f8000-d58fbfff : 0000:00:00.0
> d5900000-d597ffff : 0000:00:00.0
> df200000-e71fffff : 0000:00:00.0
> 100000000-1000fffff : System RAM
> 
> The probe function is huge... But I'll se if I can find the time to take
> a look at it in the next days...

Hmmm. Instrumenting resources.c (__request_resource) might be the way to
figure out where it chokes on.

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