Hello,
On 08.06.2013 01:13, Jilong Kuang - SISA wrote:
I just found out current Genode pci driver does not support a system with multiple root complexes.
yes, this is true. Until now we had neither the demand nor the hardware to develop for this feature.
I suggest to open at Genode@...197... a feature request. If you have any insights or pointers to some public low level documentation about multiple PCI root complexes in regards to how to use, to handle them, it would be nice to share these information at the github feature request.
Regards,
Alex.
More specifically, in the bus_valid() function, it only scans all the devices under the first root complex (starting from bus number 0). As a result, other devices under different root complexes are considered INVALID, thus will be skipped by pci driver code.
Maybe a simple patch will fix the problem.
Best regards,
Jilong
-- *Jilong Kuang Ph.D. C.Sci. | Samsung Research America – Silicon Valley (SRA-SV)*
Senior Research Engineer, Computer Science Lab t: 408-544-2705 c: 951-318-2995 jilong.kuang@...60... mailto:jilong.kuang@...60...
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