Re: [Xen-devel] [PATCH 2/3] qemu-xen-trad: Correctly expose PCH ISA bridge for IGD passthrough

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 07.02.13 at 18:43, "G.R." <firemeteor@xxxxxxxxxxxxxxxxxxxxx> wrote:
>> 
>> For one I wonder whether this is really _always_ correct. I.e.
>> the device at 00:1f.0 always being an ISA bridge. Wouldn't it
>> be better to mirror whatever the host device says?
>>
> From the Intel driver code, it's looking for an intel ISA bridge.

That doesn't mean that it always will be.

> So your question would be should it be always at 00:1f.0.
> So far it seems that it is.

Same thing here. We ought to be careful, or else we risk to
introduce issues that pretty hard to locate, debug, and fix.

Jan


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