Re: [Xen-devel] [PATCH] VT-d: improve RMRR validity checking

[Alex Williamson <alex.williamson@xxxxxx>]

On Tue, Mar 9, 2010 at 2:30 PM, Konrad Rzeszutek Wilk
<konrad.wilk@xxxxxxxxxx> wrote:
> On Tue, Mar 09, 2010 at 02:39:10PM -0700, Alex Williamson wrote:
>>
>> I have a system with what I consider to be a valid DRHD that's getting
>> tripped up on this patch. ÂThe problem is that the DRHD includes an
>> IOAPIC scope, where the IOAPIC is not materialized on the PCI bus. ÂI
>> think Xen is being overzealous in it's validity checking and that this
>> is a valid configuration. ÂWhat do others think? ÂAre IOAPICs a
>
> How does upstream Linux handle this?

Last I checked, it works just fine, doesn't care that the IOAPIC isn't
materialized.

Alex

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