Re: [Xen-devel] Fwd: Need help - Assigning PCI device to HVM Windows domain

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 16/11/06 8:30 am, "GT" <gtcharny@xxxxxxxxx> wrote:

> I forgot to mention that I allowed MMIO/IO ports access to WinXP according 
> to NIC's PCI BARs.

Since HVM guests are lied to about their physical memory map it is actually not possible for the Windows guest to access the physical MMIO resources of the NIC. You could work around this by picking up the MMIO access attempts in qemu and forward them to/from the actual underlying physical addresses.

 -- Keir



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