Re: [Xen-devel] Will Xen change the mapping after PCIe reset for

To:	"pradeep singh rautela" <rautelap@xxxxxxxxx>
Subject:	Re: [Xen-devel] Will Xen change the mapping after PCIe reset for the VT-d device?
From:	"Neo Jia" <neojia@xxxxxxxxx>
Date:	Wed, 1 Oct 2008 10:22:36 -0700
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx, "Cui, Dexuan" <dexuan.cui@xxxxxxxxx>
Delivery-date:	Wed, 01 Oct 2008 10:23:00 -0700
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Could you show me where the PCI manager in the Xen hypervisor?

Thanks,
Neo

On Wed, Oct 1, 2008 at 12:53 AM, pradeep singh rautela
<rautelap@xxxxxxxxx> wrote:
> On Wed, Oct 1, 2008 at 12:33 PM, Neo Jia <neojia@xxxxxxxxx> wrote:
>> hi,
>>
>> After a secondary bus reset Xen will restore the PCI configure space
>> for the VT-d device, will the mapping still valid as we are using the
>> original BARs?
>>
>> Let's assume the guest device driver will not change the BARs as Xen
>> only save the register after guest shutdown/reset.
>
> Won't SR(MR) PCI Manager take care of this? ( provided it sits in the
> Xen hypervisor)
>
> Thanks,
>      --Pradeep
>>
>> Thanks,
>> Neo
>> --
>> I would remember that if researchers were not ambitious
>> probably today we haven't the technology we are using!
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-devel
>>
>
>
>
> --
> Pradeep Singh Rautela
> http://eagain.wordpress.com
> http://emptydomain.googlepages.com
>



-- 
I would remember that if researchers were not ambitious
probably today we haven't the technology we are using!

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Re: [Xen-devel] Will Xen change the mapping after PCIe reset for the VT-