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Re: [Xen-devel] vpci: deferral of register write until p2m changes are done

>>> On 29.11.18 at 14:44, <roger.pau@xxxxxxxxxx> wrote:
> I cannot see how interactions with a device with half-mapped BARs
> could trigger aborts that cannot be triggered when the device has
> fully mapped BARs. Ie: if there's indeed a way to trigger such aborts
> it would also be possible to do so with fully mapped BARs.

Whether comparing with the fully mapped case or the fully
unmapped one is more relevant I can't tell. In any event I
don't think we're going to get anywhere here without either
someone chiming in who has better PCIe knowledge than
me, or without you submitting a patch with a sufficiently
convincing description.


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