Re: [Xen-devel] [PATCH v2] VT-d: don't pass bridge devices to domain_context_mapping_one()

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

> From: Jan Beulich <jbeulich@xxxxxxxx>
> Sent: Monday, January 20, 2020 11:42 PM
> 
> When passed a non-NULL pdev, the function does an owner check when it
> finds an already existing context mapping. Bridges, however, don't get
> passed through to guests, and hence their owner is always going to be
> Dom0, leading to the assigment of all but one of the function of multi-
> function PCI devices behind bridges to fail.
> 
> Reported-by: Marek Marczykowski-Górecki
> <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>


Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
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