Re: [Xen-devel] Multi-Function PCI passthrough not implemented?

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 18.09.13 at 16:03, "Wu, Feng" <feng.wu@xxxxxxxxx> wrote:
> Seems the current implementation of xl only supports "*" notation, the 
> following
> notations mentioned at 
> http://wiki.xen.org/wiki/Bus:Device.Function_(BDF)_Notation 
> are not supported:
> 
> 0000:00:1d.0-2
> 0000:00:1d.0,3,5,7
> 0000:00:1d.2=0-0=2 
> 0000:00:1d.0=3,3=2,5=1,7=0

Altering function numbers, especially to or from zero, is clearly not
generally valid: There are devices where the multi-function bits is
set only for function zero, and hence any other function being made
(virtual) function zero would result in all other functions not being
found during the guest OSes bus scan.

Jan


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