On Fri, May 06, 2011 at 04:18:14PM +0200, Robin Axelsson wrote: > On 2011-05-06 08:03, Pasi Kärkkäinen wrote: > > On Thu, May 05, 2011 at 07:48:36PM +0200, Robin Axelsson wrote: > >> Hi, > >> I have compiled Jeremy's kernel on Fedora 14 and it turned out that > >> xen-pciback is compiled into the kernel as a module. So I made a > >> "xen-pciback.conf" file in /etc/modprobe.d. The problem is that I have > >> to get modprobe to load before the drivers to the PCI devices I want to > >> hide are loaded. > >> > >> So my question is how do I locate the drivers and find the points in the > >> boot scripts where I can put the modprobe so that it is loaded before > >> them? I tried lsmod and modinfo but they don't give much information. I > >> only managed to find the driver for the Intel EXPI9400PT adapter e1000e. > >> > >> I want to hide the graphics adapter (Radeon 5450), Two USB2.0 ports, the > >> Intel adapter, the USB3.0 controller and the Audio device, their > >> assignments on machine are as follows: > >> > >> pci_0000_00_02_0 (GPU) > >> pci_0000_00_12_0 (USB 2.0 should give 2 ports) > >> pci_0000_00_14_2 (Audio device) > >> pci_0000_00_0a_0 (Intel Adapter) > >> pci_0000_00_09_0 (USB 3.0 Interface) > >> > >> but the question is where can I locate their drivers and how can I tap > >> into the boot sequence so that the xen-pciback driver is loaded > >> beforehand? The page > >> > >> http://wiki.xensource.com/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_module > >> > >> gives no information about this. It mentions something about "install > >> skge ... " but it doesn't say where this line is to be put and how you > >> figure out that skge is the driver to be disabled. > >> > > You probably should add the modules to be loaded from initrd image. > > > > Are you using mkinitrd? If yes, there's an option to preload modules.. > > > > -- Pasi > > I issued the command > > mkinitrd -v -f --preload xen-pciback /boot/initramfs-2.6.32.39.img > 2.6.32.39 > > and I noticed that the initramfs image file generated is considerably > smaller than the initramfs imagefile generated by dracut. The dracut > file is a bit over 80 MB whereas the new one is less than 8 MB. > > But the preload doesn't load the xen-pciback module. After the reboot > when I list assignable PCI devices using xm, Xen returns nothing. If I > issue 'modprobe xen-pciback' and then list the devices using xm I get > one entry. What's wrong? > Hmm.. Is it possible that the other xen-related required modules are not yet loaded at that point, so loading xen-pciback fails? You could always extract initramfs-2.6.32.39.img and read the 'init' script in it and see what it's trying to do.. -- Pasi > > >> I have set up the machine to init level 3 in the /etc/inittab (my > >> install of F14 have no upstart targets). The xen-pciback module seems to > >> be working. Something is wrong with the onboard sound chip. No drivers > >> have ever successfully initiated it, neither in Windows nor Linux. So it > >> is marked as an assignable device when looking it up with xm. > >> > >> Regards > >> > >> Robin. > >> > >> -- > >> xen mailing list > >> xen@xxxxxxxxxxxxxxxxxxxxxxx > >> https://admin.fedoraproject.org/mailman/listinfo/xen > > . > > > > -- > xen mailing list > xen@xxxxxxxxxxxxxxxxxxxxxxx > https://admin.fedoraproject.org/mailman/listinfo/xen -- xen mailing list xen@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/xen
