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Re: [Xen-devel] [PATCH] hvmloader / qemu-xen: Getting rid of resource conflict for OpRegion.



> > Yes, my win 7 guest is totally broken with IGD passthrough (much worse
> > than linux status).
> > Before I bought my current build, sources like wikis seems to mention
> > that IGD is the first card that works.
> > And now, it seems the AMD cards are the best choice for pass-through.
> > Sad news for me.
> 
> Let me just clarify that up to now we have been successful in passing in
> igfx cards without having to surface any of these ACPI bits. I was just
> mentioning that this is an inconsistency and might be worth
> investigating at some point. More importantly I am pointing out that if
> you are trying to find out information like the location/size/layout of
> the IGD OpRegion, you can get that information from the host BIOS. That
> sounded like what your original issues centered around. Sorry if I
> confused things.

Oh and I forgot to add. In addition there are other OpRegions defined like
GNVS that can give you an idea of what might be just before and after the
IGD regions when it is not page aligned.

> 
> >
> > Thanks,
> > Timothy
> 
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