Re: [Xen-devel] [RFC + Queries] Flow of PCI passthrough in ARM

[manish jaggi <manishjaggi.oss@xxxxxxxxx>]

On 8 October 2014 19:15, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> On Wed, 2014-10-08 at 19:07 +0530, manish jaggi wrote:
>> Thanks for replying. As detailed in this thread, I need to create a
>> hypercall that would send the following information to Xen at the time
>> of PCI attach
>> { sbdf , domU sbdf, domainId }.
>> I am not able to find a way to get the domU sbdf from dom0 at the time
>> of pci-attach.
>
> I think it would need to be done by the pciback driver in the dom0
> kernel, which AFAIK is the thing which consistently knows both physical
> and virtual sbdf for a given assigned device.
>
> Ian.
>
Correct, can you point out which data structure holds the domU sbdf
corresponding to the actual sbdf in pciback.

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