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


  • To: "Akio Takebe" <takebe_akio@xxxxxxxxxxxxxx>
  • From: "Jean Guyader" <jean.guyader@xxxxxxxxx>
  • Date: Thu, 11 Sep 2008 12:12:24 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 11 Sep 2008 04:12:49 -0700
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On Thu, Sep 11, 2008 at 11:46 AM, Akio Takebe
<takebe_akio@xxxxxxxxxxxxxx> wrote:
> Hi,
>
> If we assign a device to HVM guest,
> HVM guest can do directry DMA transfer.
> But how about accessing pci configuration register
> of the pass through device? Do we still access
> pci configuration register through qemu?
>

Yes, you should have a look at the function pt_pci_read_config in
ioemu/hw/pass-through.c.

Regards,

-- 
Jean Guyader

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