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

Il 29/07/2014 08:59, Chen, Tiejun ha scritto:
>> (see https://lkml.org/lkml/2014/6/19/121)
>>> "gpu:drm:i915:intel_detect_pch: back to check devfn instead of check
>>> class
>>> type". Because Windows always use this way, so I think this point
>>> should be
>>> same between Linux and Windows.
>> Didn't we discuss that we did not want to pass in PCH at all if we can?
> I'm a bit confused since I guess I'm missing something important in this
> long discussion. I guess we just fake a simple PCIe device but just has
> PCI_VENDOR_ID_XEN/Real_PCH_Device_ID, and then well probe such a PCIe
> device inside intel_detect_pch(), right?

Yes, for the special PIIX4 legacy machine type we want to do that and
place the device at 00:1f.0.


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