From mboxrd@z Thu Jan  1 00:00:00 1970
From: Akio Takebe <takebe_akio@jp.fujitsu.com>
Subject: Re: [Q] Is qemu used when we use VTd?
Date: Fri, 12 Sep 2008 14:27:54 +0900
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	<20080912132601.6281.SHIMADA-YXB@necst.nec.co.jp>
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To: Yuji Shimada <shimada-yxb@necst.nec.co.jp>
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Hi, Yuji

Yuji Shimada wrote:
>> I suspect MMCONFIG is needed to access Extended PCI
>> configuration space of PCI-Express. Probably PCI-Express card
>> can work without those access.
>> But we can't use full features of PCI-Express cards, right?
> 
> Yes. For example, guest software can't use AER (Advanced Error
> Reporting).
> 
> To use full features of PCI-Express, we need to implement Root Port
> emulator into qemu, in addition to MMCONFIG.
> 
Thank you very much.

Best Regards,

Akio Takebe