[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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


  • To: "Neo Jia" <neojia@xxxxxxxxx>
  • From: "pradeep singh rautela" <rautelap@xxxxxxxxx>
  • Date: Mon, 6 Oct 2008 12:38:40 +0530
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, "Cui, Dexuan" <dexuan.cui@xxxxxxxxx>
  • Delivery-date: Mon, 06 Oct 2008 00:09:12 -0700
  • Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=QSurNV2ck7jjJ8JMk6HD75d3ssCbRo43NQ9KLlg1uLMsZoKBd6jPbNeeFnQqknu1fB /+0bpdT9/3uS2cdDLmvpqzs4PQwzs564NX9AT9HnK2Kr2FGr9JElriiU5y7ek1D8ZG/9 p7bj39bHTPrqQFs1HE1/qQwmWpTNrQEIsCVlc=
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

On Wed, Oct 1, 2008 at 10:52 PM, Neo Jia <neojia@xxxxxxxxx> wrote:
> Could you show me where the PCI manager in the Xen hypervisor?

I do not know but I doubt if it is in there yet.
Maybe someone better can ans this question.
What I said was from simple SR-IOV specification.

Thanks,

>
> 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!
>



-- 
Pradeep Singh Rautela
http://eagain.wordpress.com
http://emptydomain.googlepages.com

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.