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 11:59:50 +0900
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To: "Tian, Kevin" <kevin.tian@intel.com>
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Hi, Kevin

Tian, Kevin wrote:
>> From: Akio Takebe [mailto:takebe_akio@jp.fujitsu.com]=20
>> Sent: 2008=C4=EA9=D4=C211=C8=D5 19:07
>>
>> Hi,
>>
>> Thank you.
>>
>> And mmio is traped by hypervisor,
>> then hypervisor do mmio instead of HVM guest, Right?
>>
>=20
> Which mmio are you actually talking? If you mean MMIO
> ranges in PCI BARs of passthrough device, they can be
> directly accessed by HVM with p2m entry setup accord-
> ingly, if MMIO range falls in 4k page granularity.
>=20
Thank you very much. I talked about MMIO ranges
in PCI BARs of pass through device using VT-d.

Does hypervisor trap only MMIO by APIC access?

Best Reards,

Akio Takebe