Hello, > > For PCI passthrough, I have to handle MessageHostOp::OP_ATTACH_MSI > > (amongst others). This requires modifications to the Irq_connection / > > Irq_session. My current plan is to pass the bdf value through to the > > Irq_proxy_component, where I can use it to get the pci config space. > > I would advise to obtain the pci config space information (physical > address respectively a dataspace to it) directly in Seoul/Vancouver via > the pci_session. > > Then you can pass this information as parameter (so, either the physical > address or better the dataspace capability) to the Irq::connection > request and Core can establish a valid memory mapping for issuing later > on the assign_gsi syscall.
This is what I tried at first, but just passing the physical address to the system call does not work because the assign_gsi syscall expects the address to be mapped. Passing the dataspace capability should work, but I cannot do so in the constructor of Irq_connection since the latter passes all arguments in a string to Irq_session. I could of course add a function to set the dataspace capability for the pci config space and wait until it has been called before assigning the gsi, but I have hoped for a cleaner solution. Regards, Ole Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen, Deutschland Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Christian Lamprechter, Hannes Schwaderer, Douglas Lusk Registergericht: Muenchen HRB 47456 Ust.-IdNr./VAT Registration No.: DE129385895 Citibank Frankfurt a.M. (BLZ 502 109 00) 600119052 ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60135991&iu=/4140/ostg.clktrk _______________________________________________ Genode-main mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/genode-main
