RE: [Xen-devel] [Q] Is qemu used when we use VTd?

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>From: Akio Takebe [mailto:takebe_akio@xxxxxxxxxxxxxx] 
>Sent: 2008年9月11日 19:07
>
>Hi,
>
>Thank you.
>
>And mmio is traped by hypervisor,
>then hypervisor do mmio instead of HVM guest, Right?
>

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.

Thanks,
Kevin

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