Re: [Xen-devel] [v5][PATCH 0/5] xen: add Intel IGD passthrough support

[Paolo Bonzini <pbonzini@xxxxxxxxxx>]

Il 25/06/2014 09:35, Chen, Tiejun ha scritto:
> > How are you going to make this work for Q35 or another PCIe machine that
> > already has an ISA bridge at 00:1f.0?
> Could we simply pass the vendor/device ids of the host ISA bridge here?
No, because the firmware then would not recognize the host ISA bridge 
and would fail to initialize the ACPI PMBASE, the PCI interrupt routing, 
etc.
Paolo

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