On Mon, Aug 22, 2011 at 06:51:35AM -0400, Avi Kivity wrote: > On 08/22/2011 01:46 PM, Joerg Roedel wrote: > > That does not work. The bridge in question may not even be visible as a > > PCI device, so you can't link to it. This is the case on a few PCIe > > cards which only have a PCIx chip and a PCIe-2-PCIx bridge to implement > > the PCIe interface (yes, I have seen those cards). > > How does the kernel detect that devices behind the invisible bridge must > be assigned as a unit? On the AMD IOMMU side this information is stored in the IVRS ACPI table. Not sure about the VT-d side, though. Joerg -- AMD Operating System Research Center Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach General Managers: Alberto Bozzo, Andrew Bowd Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
