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

[Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>]

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

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